| Entries |
| Document | Title | Date |
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| 20080203944 | LIGHTING APPARATUS WITH CURRENT FEEDBACK - A lighting apparatus comprises a plurality of light sources, a power conversion circuit, a plurality of load-driving coils and a feedback generation coil. The power conversion circuit generates a driving signal for the load-driving coils to generate substantially identical driving currents for driving every light source. Furthermore, the feedback generation coil generates a feedback signal based on the inductions of the currents flowing though the plurality of load driving coils. | 08-28-2008 |
| 20080211427 | Lighting System and Method for Controlling a Lighting System - A lighting system with a base station and a plurality of lighting units, as well as a method for controlling a lighting system are described. Each lighting unit ( | 09-04-2008 |
| 20080224634 | LED circuit with current control - Circuit for regulating a current applied to an electrical load, comprising
| 09-18-2008 |
| 20080231211 | POWER SUPPLY - A power supply to provide electrical power to one or more loads. The power supply may include a resonant air core transformer to provide an adjustable and adaptable source of power to electronic devices. The power supply may include isolated primary-side circuitry and secondary-side circuitry. The primary-side circuitry may include control circuitry that, among other things, provides drive waveforms for the primary-side switching circuitry. In embodiments configured to produce AC output, the secondary-side circuitry may also include switching circuitry. The primary-side control circuitry may provide drive waveforms for the secondary-side switching circuitry. The secondary-side circuitry may include measurement circuitry that measures the current and/or voltage of the output and provides those measurements to the control circuitry through isolation circuitry. The control circuitry may adjust the drive waveforms for the primary-side and/or secondary-side switching circuitry as a function of the measured values. | 09-25-2008 |
| 20080231212 | Parallel lighting system for surface light source discharge lamps - Disclosed is a low-cost parallel lighting system for discharge lamps for a surface light source, which reduces nonuniform brightness and static noise, and fulfills a requirement that lamp currents of individual cold-cathode fluorescent lamps should be uniform and stabilized. In a surface light source system having multiple discharge lamps, there is a module which lights the discharge lamps in parallel and whose input terminal and electrodes on an opposite side to that side of the discharge lamps which is connected to the module are driven by voltage waveforms different in phase by 180 degrees from each other, wherein an input terminal of an opposite phase of the surface light source system is connected to an inverter circuit having outputs of opposite phases via a single shunt transformer in such a way as to cancel out magnetic fluxes generated by currents respectively flowing in windings of the shunt transformer, whereby the resonance frequency of the inverter circuit having outputs of opposite phases is matched to balance the outputs. | 09-25-2008 |
| 20080238335 | Light Source Having a Plurality of White LEDs with Different Output Spectra - A solid state light source having first and second component light sources and an interface circuit and a method for making the same are disclosed. The first and second component light sources emit light having first and second color points on different sides of the black body radiation curve. The first and second component light sources include LEDs that emit light of a first wavelength and a layer of a light converting material that converts a portion of that light to light of a second wavelength. The interface circuit powers the first and second component light sources such that the solid state light source has a color point that is closer to the black body radiation curve than either the first or second color points. A third component light source can be included to expand the range of white color temperatures that can be reached by the light source. | 10-02-2008 |
| 20080238336 | Back-Light Devices and Displays Incorporating Same - A back-light arrangement for providing back-light to a display panel such as a liquid crystal video display panel, includes a plurality of light emitting devices arranged and distributed for providing back-light to the display panel, and electronic circuitry arranged for driving the plurality of light emitting devices to produce the back-light. The electronic circuitry contains a plurality of drivers, each of which is arranged to individually drive a corresponding one of the plurality of light emitting devices to emit light upon receipt of an actuating signal. A controller is arranged to multiplex an intensity signal to each one of the plurality of drivers for individually driving each one of the plurality of light emitting devices. | 10-02-2008 |
| 20080238337 | ARCHITECTURE FOR DRIVING MULTIPLE LOADS AT CONSTANT CURRENT - A circuit for driving an array of Light Emitting Diode (LED) strings at a constant current has a plurality of LEDs. A plurality of LED drivers is provided wherein a single LED driver is coupled to each of the plurality of LEDs. A voltage reference generator is used for sending a voltage reference signal to each LED driver. The voltage reference generator is external to each of the plurality of LED drivers. An input line voltage is coupled to the voltage reference generator. A clock generator is provided for sending to a clock signal to each of the plurality of LED drivers. The clock generator is external to each of the plurality of LED drivers. A low-frequency PWM dimming input signal is coupled to each of the plurality of LED drivers to allows dimming of the LEDs. | 10-02-2008 |
| 20080238338 | Method and system for providing scalable and configurable illumination - A modular, scalable and configurable incoherent light source is provided. The light source includes an array of lighting modules supported on a frame that focuses emitted radiation from the modules at a region of interest. The geometry and physical configuration of the support structures, including the frame, may accommodate various energy intensities at various distances. The modules may be made up of multiple LEDs or other individual light sources, may be of different or the same wavelength, and may be individually controllable for the ultimate lighting application. The light source may be used in medical imaging applications. | 10-02-2008 |
| 20080238339 | Method and System for Variable Color Lighting - A method, for controlling color output of a variable color lighting system ( | 10-02-2008 |
| 20080246416 | PROCESS AND APPARATUS FOR IMPROVED LED PERFORMANCE - Process and apparatus for improving LED performance are disclosed in which, in one exemplary embodiment, a lamp having one or more LEDs is powered by at least one rechargeable battery that may be recharged by solar photovoltaic panel or any number of DC or AC power sources, including a car battery or household AC outlets. The power to illuminate the LEDs from the rechargeable battery is regulated by a control circuit that enables the LEDs to illuminate for at least twice the operating time for the same LEDs and the same rechargeable battery without the control circuit. | 10-09-2008 |
| 20080252234 | TRACK LIGHTING SYSTEM CURRENT LIMITING DEVICE - A current limiting system in accordance with the present invention comprises an accessory or canopy mount device that is permanently installed between a source of electrical power | 10-16-2008 |
| 20080265800 | Led Lighting Device - This invention relates to a LED lighting device having a plurality of LEDs, and a LED drive system. The LED drive system includes basic light circuitry for generating, for each LED, a basic current causing continuous basic light output of the LED. Additionally, the LED drive system includes flash light circuitry, for generating, for each LED, a momentary flash current through the LED, which causes a momentary flash light output. An average current amplitude of the flash current is higher than an average current amplitude of said basic current. Thereby flashes, or twinkles, will be observed by a person watching the LED lighting device. | 10-30-2008 |
| 20080278097 | Systems and Methods for Controlling a Solid State Lighting Panel - Provided are systems and methods for controlling a solid state lighting panel. A system according to some embodiments of the invention includes a controller that provides control signals to current drivers that are configured to provide current to multiple solid state lighting devices. The system also includes a sequence generator that generates a firing sequence for firing multiple strings of slid state lighting devices. | 11-13-2008 |
| 20080278098 | LIGHT EMITTING DIODE DRIVE CIRCUIT - A drive circuit includes a constant voltage circuit to supply a constant voltage to one terminal of a load, a constant current circuit to supply a predetermined constant current to another terminal of the load in accordance with a pulse signal input externally, and a first reference voltage generator to generate and output a first reference voltage in accordance with an output voltage at an output terminal of the constant current circuit. The constant voltage circuit controls so that the first reference voltage is proportional to the output voltage output to the load. | 11-13-2008 |
| 20080284353 | LIGHTING APPARATUS CAPABLE OF PROTECTING EYESIGHT - Disclosed herein is a lighting apparatus using one or more fluorescent lamps. The lighting apparatus according to the present invention includes one or more sockets, a board, a ballast, and a Direct Current (DC) power supply. The sockets accommodate the fluorescent lamps. The board supports Light Emitting Diodes (LEDs) for emitting green light in a wavelength range of 498 to 530 nm, LEDs for emitting red light in a wavelength range of 620 to 700 nm, and LEDs for emitting bluish green at 495 nm. The ballast provides a ballast function to the fluorescent lamps. The DC power supply supplies DC power to the LEDs. | 11-20-2008 |
| 20080284354 | LIGHT EMITTING DIODE BACKLIGHT MODULE AND A DRIVING METHOD THEREOF - A light emitting diode (LED) backlight module includes a light emitting matrix, M row signal lines, N column signal lines, a row driver and a column driver. The light emitting matrix has multiple LED units arranged in M rows and N columns. The row driver in use outputs M row-driving signals to sequentially enable M rows of the LED units via the M row signal lines. The column driver in use sequentially outputs 1 | 11-20-2008 |
| 20080290814 | Power Controls for Tube Mounted Leds With Ballast - A power saving device for a light emitting diode (LED) lamp mounted to an existing fixture for a fluorescent lamp having a ballast assembly and LEDs positioned within a tube and electrical power delivered from the ballast assembly to the LEDs. The LED lamp includes means for controlling the delivery of the electrical power from the ballast assembly to the LEDs wherein the use of electrical power can be reduced or eliminated automatically during periods of non-use. Such means for controlling can include an on-off switch mounted in the tube or can also include a current driver dimmer mounted in the tube that regulates the amount of power delivered to the LEDs. A computer or logic arrays control the dimmer or power switch. A sensor such as an occupancy motion detection sensor mounted external to the tube or within the tube can send signals to the computer or logic array to trigger a switch or control a dimmer. Two or more such LED lamps with one or more computers or logic arrays in network communication with sensors can be controlled, so as to reduce flickering between lamps when illumination areas are being alternately occupied. Preset or manually set timers can control switches or be used in combination with the computer, logic array, and dimmer. | 11-27-2008 |
| 20080290815 | LIGHT SOURCE DRIVER - Provided is a light source driver which drives a light source including a switch unit which selects a light source; a chopper circuit which supplies power from an inductor to a light emitting diode (LED) via a diode in an on-state of a field effect transistor (FET), where the power accumulates in the inductor in the on-state of the FET; an oscillator which outputs a signal such that power is supplied to the LED through the chopper circuit, wherein the power changes according to the inductance of the inductor and the load capacity of the LED selected; and a chopper circuit driving unit which operates the FET in response to a signal whose duty ratio is the same as that used to supply power to the selected LED according to the load capacity of the LED and whose switching frequency is the same as a signal output from the oscillator. | 11-27-2008 |
| 20080290816 | Aquarium lighting device - An aquarium lighting device includes an illumination unit and a control unit. The illumination unit has a plurality of light-emitting diodes (LEDs). The LEDs are disposed adjacent to each other and emit different colors of light. The control unit is electrically connected with the LEDs to control the LEDs. | 11-27-2008 |
| 20080290817 | LED Indicator Device for AC Power Plug or Socket - An LED indicator device is mounted in an AC power plug or socket and electrically connected in parallel with an AC power source. The LED indicator device includes a driving/current-limiting circuit to which an LED lighting circuit is coupled. The driving/current-limiting circuit includes a driving/current-limiting capacitor and a discharge resistor connected in parallel with the driving/current-limiting capacitor. The LED lighting circuit includes an LED, a protective instantaneous current-limiting resistor coupled to the LED, a rectifying diode connected in parallel with the LED, and a protective instantaneous voltage-limiting capacitor connected in parallel with the LED. The LED is lit to show the position and on/off state of the AC power plug or socket. Three LEDs emitting different colors and associated driving/current-limiting circuits and associated LED lighting circuits can be utilized to indicate incorrect power connection or short circuit of the AC power plug or socket. | 11-27-2008 |
| 20080297067 | POWER REGULATION FOR LED STRINGS - One embodiment of the invention includes a power regulator system. The system comprises at least one current regulator configured to maintain a substantially constant current flow through each of at least one series connected light emitting diode (LED) string. The system also comprises a power converter configured to generate an output voltage to provide power to the at least one current regulator and the at least one series connected LED string. The system further comprises a voltage regulator configured to determine a voltage that provides power to the at least one current regulator and to adjust the output voltage based on the determined voltage to mitigate power loss due to excessive voltage provided to power the at least one current regulator. | 12-04-2008 |
| 20080303452 | Led Lighting Device - The present invention relates to a multiple LED driver circuit in which each LED ( | 12-11-2008 |
| 20080309253 | Apparatus For Remote Control Of Lights - A multi-light control system with a single wireless remote control. A number of separate lights, such as fixtures or lamps, are individually plugged into and controlled by a control module. One control module can turn a light on or off, another module functions as a continuous dimmer, a third acts as a three level wattage switch. The single controller has a number of buttons or keys for individually activating the separate control modules. | 12-18-2008 |
| 20080315790 | DISCHARGE LAMP LIGHTING CONTROL METHOD, COMPUTER PROGRAM, DISCHARGE LAMP LIGHTING CONTROL APPARATUS, AND POWER SUPPLY CIRCUIT - Lighting of a discharge lamp is controlled in a manner to reduce deterioration of the discharge lamp subjected to high temperature and extend the lifetime of the discharge lamp. A method for controlling lighting of the discharge lamp includes a first constant current control process (period T | 12-25-2008 |
| 20090015177 | POWER SUPPLY DEVICE AND LIGHT-EMITTING DEVICE AND ELECTRONIC EQUIPMENT USING SUCH POWER SUPPLY DEVICE - In a power supply apparatus for supplying a power to a plurality of CCFLs, a plurality of transformers are provided for the respective CCFLs. Respective primary coils of the transformers are connected to each other in series so as to constitute one current path. One ends of respective secondary coils of the transformers are connected to the plurality of loads. An AC power supply unit generates an AC voltage and applies the AC voltage to the other ends of the secondary coils of the plurality of transformers. A capacitor is disposed on the current path formed with the primary coils of the transformers. A first fixed voltage is applied to one end of the current path, and a second fixed potential different from the first fixed voltage is applied to the other end of the current path. | 01-15-2009 |
| 20090021185 | Led lighting system - A lighting system has an array ( | 01-22-2009 |
| 20090021186 | LIGHT EMITTING APPARATUS - The present invention provides a light emitting apparatus comprising: a first light emitting portion for emitting white light with a color temperature of 5700K or more; and a second light emitting portion capable of changing the color temperature of the white light emitted from the first light emitting portion, wherein the first and second light emitting portions are independently driven. Accordingly, the present invention has the advantage that it can be diversely applied to desired atmospheres and uses by implementing white light with various light emitting intensities and color temperatures. Further, there is an advantage in that the cumbersomeness in a process is reduced, the space efficiency is enhanced, and the costs are reduced. | 01-22-2009 |
| 20090026976 | METHOD FOR DIMMING THE LIGHT EMITTED FROM LED LIGHTS, IN PARTICULAR IN THE PASSENGER CABIN OF AN AIRLINER - In order to dim the brightness of the mixed-color light from an LED light ( | 01-29-2009 |
| 20090026977 | DRIVE UNIT, SMOOTHING CIRCUIT, DC/DC CONVERTER - A drive unit has a load driving portion driving a load by a PWM drive method; a soft-start function portion for achieving a soft-start function; and a soft-start disabling portion counting a time elapsed after a PWM signal is turned on at start-up of the unit, and disabling the soft-start function when a count value reaches a predetermined value. | 01-29-2009 |
| 20090026978 | SYSTEM AND METHOD FOR LIGHT SOURCE IDENTIFICATION - A light source is configured to send a beacon signal representative of the unique identifier thereof, on command, constantly or at a predetermined interval. The beacon signal is integrated into the light emitted by the light source, wherein the integration of the beacon signal is performed in a manner that visible flicker of the resultant light is imperceptible. A remote detection unit is configured to receive the light and extract the beacon signal therefrom. In this manner the remote detection device is capable of wirelessly determining the unique identifier of a light source. The collected unique identifier of the light source can subsequently be provided to a controller associated with the light source, thereby providing individual control of the light source by the controller. Through the use of electronic data transfer from the remote detection unit to the controller, the provision of the one or more unique identifiers to the controller can be enabled in an efficient and accurate manner. | 01-29-2009 |
| 20090058320 | SYSTEM AND METHOD FOR CONTROLLING LIGHTING PATTERNS OF AN LED - A computer-based method for controlling lighting patterns of an LED is disclosed. The method includes the steps of: adding LED data to a computer, the LED data includes a lighting pattern of the LED; sending a command to an LED controller connected to the LED, the command is a control command or a writing command, the writing command includes LED data that can be read by the computer; updating LED data stored in the LED controller with the LED data included in the writing command if the command is the writing command, and controlling the lighting pattern of the LED according to the updated LED data; reading LED data from the LED controller directly if the command is the control command, and controlling the LED to turn on or turn off according to the LED data read from the LED controller. A related system is also disclosed. | 03-05-2009 |
| 20090058321 | LAMP DRIVING APPARATUS AND CONTROL METHOD THEREOF - A lamp driving apparatus configured to drive a plurality of types of lamps, each of the plurality of lamps is attached with lamp identification information for uniquely identifying the lamp. The lamp driving apparatus includes: a lamp power supply configured to drive the lamp; a read circuit configured to read the lamp identification information from the lamp; and a control circuit configured to control the lamp power supply on the basis of a result of identification obtained by use of the read lamp identification information. The control circuit, if the lamp is found to be authorized, makes the lamp power supply drive the lamp. | 03-05-2009 |
| 20090066264 | HIGH-VOLTAGE HIGH-POWER CONSTANT CURRENT LED DRIVER DEVICE - A high-voltage high-power constant current LED driver device, can drive LED cluster, comprises switch tube, current sensing resistor Rcs and inductor L, particularly, comprises a low voltage control circuit that detects the voltage drop on the said current sensing resistor Rcs to produce a control signal transmitting to the control terminal of the switch tube; the said current sensing resistor Rcs connects with inductor L in series and is positioned between the output terminal of switch tube and the current output terminal of the current driving device in series connection; the input terminal of the said switch tube is connected to a DC voltage source; and also comprises a diode D | 03-12-2009 |
| 20090072759 | Method for dimming multiple lamps - A method for dimming multiple lamps includes: getting a brightness range of a lighting area which has at least two light sources, getting a dimming range of the light sources, setting the brightness of the lighting area, determining the dimming value of each light source, and defining different dimming values of at least two light sources. The luminosity adjustment upper limit and lower limit of the individual light sources are obtained. After the brightness of the lighting area is set the dimming value of each light source is determined to form the brightness of the lighting area through the two light sources of different brightness. | 03-19-2009 |
| 20090072760 | Luminous chain with distributed driver circuit - The luminous chain includes a plurality of luminous modules, wherein at least two of the luminous modules include at least one set including at least one light source and one driver circuit for driving the at least one light source, and the driver circuits of one set of the respective luminous modules are electrically connected in parallel with one another, and the light sources of the one set of the respective luminous modules are electrically connected in series with one another, and the driver outputs of the driver circuits are combined at a node for jointly supplying current to all of the light sources of the one set. | 03-19-2009 |
| 20090072761 | SWITCHING DEVICE FOR DRIVING LED ARRAY BY PULSE-SHAPED CURRENT MODULATION - A circuit drives an LED array and controls the brightness of the LED array by regulating the current flowing through the array. The LED array is driven by a pulse-shaped current of which the mean value is regulated with at least one or two of the following types of modulation: frequency modulation, pulse-width modulation, and amplitude modulation. | 03-19-2009 |
| 20090079362 | Regulation of Wavelength Shift and Perceived Color of Solid State Lighting with Intensity and Temperature Variation - Exemplary embodiments of the invention provide a system, apparatus, and method of controlling an intensity and spectrum of light emitted from a solid state lighting system. The solid state lighting has a first emitted spectrum at full intensity and at a selected temperature, with a first electrical biasing for the solid state lighting producing a first wavelength shift, and a second electrical biasing for the solid state lighting producing a second, opposing wavelength shift. Exemplary embodiments provide for receiving information designating a selected intensity level or a selected temperature; and providing a combined first electrical biasing and second electrical biasing to the solid state lighting to generate emitted light having the selected intensity level and having a second emitted spectrum within a predetermined variance of the first emitted spectrum over a predetermined range of temperatures. | 03-26-2009 |
| 20090079363 | System for time-sequential led-string excitation - A system for time-sequential LED-string excitation includes a controller coupled to at least two LED strings and arranged to sequentially excite the strings—preferably by pulse-width modulating their respective currents—such that each string conducts a desired current and/or provides a desired light intensity. Individual string currents and/or light intensities are provided to the controller as feedback signals. The controller preferably pulse-width modulates each string such that it conducts a current which approximates the performance that would be provided if the string were made to continuously conduct an ‘optimal’ current. A voltage converter may be included to provide the supply voltage connected to the top of each LED string, and to adjust the supply voltage as needed to ensure that each string conducts a desired current. | 03-26-2009 |
| 20090079364 | Driving device, driving circuit, LED head, and image forming apparatus - A driving apparatus is provided that has a plurality of driving circuits formed to correspond to a plurality of driven circuits arranged on a predetermined circuit board, each of the plurality of driving circuits including a driving control unit for driving the corresponding driven circuit, a reference voltage generation unit for generating a reference voltage according to a temperature of the corresponding driven circuit, a control voltage generation unit for generating, based on the reference voltage supplied from the reference voltage generation unit, a control voltage for driving the corresponding driven circuit, the control voltage generation unit supplying the generated control voltage to the driving control unit, a switch device formed between the control voltage generation unit and the reference voltage generation unit, and a switch control unit for driving the switch device based on an inputted control signal, wherein the control voltage generation unit is connected to the reference voltage generation unit of another of the plurality of driving circuits via the switch device. | 03-26-2009 |
| 20090085496 | LED controller and lighting system - A LED controller that allows the user to control the output intensity of one or more LED lights is disclosed. The intensity levels or brightness of the LED lights are not limited to 3, 4 or even 10 levels of light output; instead, the LED controller provides what appears to the human eye as a smooth range of changing brightness levels depending on the needs the user. | 04-02-2009 |
| 20090085497 | Skylight LED lighting system - A skylight LED lighting system is described. The system utilizes LED lights attached to or near a skylight in order to provide a user with the ability to increase the amount of light being directed into an area. The system can utilize a LED controller to allow the user to control the light output intensity. The LED controller provides a smooth range of changing brightness levels. The system can utilize one or more solar cells and batteries to power the LED lights. The system can be controlled via a radio frequency remote control. Additionally, the system can utilize a flexible, skylight-shaped installation housing that can be inserted into the skylight under compression. When the compression is released, the ring expands to press against the inside of the skylight and holds the skylight LED lighting system in place. | 04-02-2009 |
| 20090085498 | Electron emission device for back light unit and liquid crystal display thereof - The electron emission display device includes a light source unit having a plurality of gate electrodes and a plurality of cathode electrodes, the light source unit configured to emit electrons in accordance with voltages of the gate electrode and the cathode electrode, and to direct the emitted electrons to an anode electrode, a gate driver configured to transmit a driving waveform to the gate electrodes, and a cathode driver configured to transmit a driving waveform to the cathode electrodes, wherein at least one driving waveform transmitted by the gate driver and the cathode driver is a non-impulse waveform. | 04-02-2009 |
| 20090085499 | SUBAREA CONTROL SYSTEM OF ELECTRICAL LIGHTING SEPARATED BY A DEMARCATION REPEATER - A subarea control system of electrical lighting separated by a demarcation repeater | 04-02-2009 |
| 20090091270 | LIGHT SOURCE UNIT, A BACKLIGHT UNIT HAVING THE LIGHT SOURCE UNIT AND A LIQUID CRYSTAL DISPLAY HAVING THE BACKLIGHT UNIT - A light source unit, including: at least one light source array having a plurality of light sources; a first resistive element connected in parallel to at least one of the light sources disposed at a first end of the light source array; and a second resistive element connected in parallel to at least one of the light sources disposed at a second end of the light source array. | 04-09-2009 |
| 20090096386 | LIGHT-EMITTING SYSTEMS - A light-emitting system includes a first power input terminal and a second power input terminal and five rectifying devices coupled between the two power input terminals. The first and second power input terminals may receive an external power input. The first rectifying device is coupled between the first power input terminal and a first intermediate contact. The second rectifying device is coupled between the second power input terminal and the first intermediate contact. The third rectifying device is coupled between a second intermediate contact and the second power input terminal. The fourth rectifying device is coupled between the second intermediate contact and the first power input terminal. The fifth rectifying device is coupled between the first intermediate contact and the second intermediate contact. The fifth rectifying device is configured to allow a current flow from the first intermediate contact to the second intermediate contact and to emit light in response to the current flow. One or more of the first, second, third, and fourth rectifying devices may include one or more light-emitting diodes, one or more Schottky diode(s), or a combination of both types of diodes. | 04-16-2009 |
| 20090102396 | LIGHTING CONTROL SYSTEM FOR A LIGHTING DEVICE - A lighting control system suitable for a surgical lighting device. The lighting control system includes circuitry that compensates for the effects of temperature changes in a lighting device, and that compensates for forward voltage variations among LED lighting modules to provide substantially uniform light output. | 04-23-2009 |
| 20090102397 | SYSTEM AND METHOD FOR CONTROLLING MULTIPLE LIGHT SOURCES - A system for controlling multiple light sources is provided. The system includes a controller, a digital to analog converter (DAC), and at least one power amplifier. The controller is configured for receiving light control data for at least one light circuit, and for determining a digital luminance signal and an encoded address for each light circuit according to the light control data. The DAC is connected to the controller and configured for receiving the digital luminance signal and the encoded address for each light circuit, converting the digital luminance signal into an analog luminance signal, and for outputting the analog luminance signal according to the encoded address. Each power amplifier is connected to the DAC, and is configured for amplifying the analog luminance signal for the light circuit so as to drive the light circuit to control a corresponding light source. | 04-23-2009 |
| 20090102398 | LIGHTING UNIT, A SYSTEM COMPRISING IT AND A CONTROL METHOD THEREOF - A method for controlling the operation of a lighting unit comprising a plurality of lighting elements and a dimmable power supply unit with an output for adjusting the brightness of at least some of the lighting elements. The method provides that for at least one dimmer setting at least one real electrical parameter is measured, as a function of the absorption of the lighting elements and that the measured electrical parameter is compared with at least one previously-stored theoretical value. | 04-23-2009 |
| 20090108771 | DRIVING SYSTEM FOR ELECTRONIC DEVICE AND CURRENT BALANCING CIRCUIT THEREOF - A driving system, includes: a power supply unit for providing a first current and a second current; a first transformer having a primary side coupled to the power supply unit and a secondary side coupled to a first current balancing circuit for driving a plurality of first lamps; a second transformer having a primary side coupled to the power supply unit and a secondary side coupled to a second current balancing circuit for driving a plurality of second lamps; a balancing control circuit coupled to the power supply unit for balancing the first and the second current so that the first current and the second current are substantially equal. | 04-30-2009 |
| 20090108772 | Color-temperature adjustable light-emitting device and control circuitry thereof - The present invention discloses a color-temperature adjustable light-emitting device and a control circuitry thereof. Therein, the light-emitting device comprises a signal control circuit, an isolation circuit, current driving circuits, light-emitting diodes, and a protection circuit. The present invention implements the signal control circuit to control the plurality of current driving circuits to drive the light-emitting diodes, respectively. Since the signal control circuit can simultaneously accurately control the plural light-emitting diodes, a color temperature of mixed light of the light-emitting diodes can be adjusted between 1,500K and 20,000K. | 04-30-2009 |
| 20090108773 | Current Distributor - A current distributor that simplifies the architecture and reduces the connecting wires. According to the invention, current distributor can be utilized for distributing the current evenly through a plurality of rows of light-emitting diodes. Each respectively is coupled between a supply pin and a first current pin. The first current pin is coupled to the current distributor. The current distributor is coupled to a total current pin. The current distributor comprises a first resistor, a plurality of first clamp circuitries, a second clamp circuitry and a plurality of first transistors. The first resistor has a first end and a second end. The first end is coupled to the supply pin. Each of the plurality of first clamp circuitries has a first terminal and a second terminal. Each of the first terminal of the first clamp circuitries is coupled to the second end of the first resistor. Each of the second terminal of the first clamp circuitries is coupled to the first current pin. The second clamp circuitry has a first terminal and a second terminal. The second terminal of the second clamp circuitry is coupled to the second end of the first resistor. The plurality of first transistors has a first terminal, a second terminal and a gate. The first terminal is coupled to the first current pin. The gate is coupled to the cathode of the second diode. The second terminal is coupled to the total current pin. | 04-30-2009 |
| 20090115347 | CURRENT CONTROL CIRCUIT, LED CURRENT CONTROL APPARATUS, AND LIGHT EMITTING APPARATUS - A counter circuit increments a count value bit by bit in synchronization with a clock pulse received from an oscillating portion. A lower order decoder receives the count value output from the counter circuit, compares a bit or bits on a lower side with a set value | 05-07-2009 |
| 20090128052 | Extended Life LED Fixture with Distributed Controller and Multi-Chip LEDS - An LED fixture includes multiple LED drivers and a multi-chip LED package so that the lifetime of the fixture is a multiple of the lifetime of a conventional fixture that uses only a single LED driver. A distributed controller activates and deactivates the LED drivers so that different subsets of LEDs within the LED package are driven sequentially. An optional multi-chip LED driver concurrently drives multiple subsets of LEDs that were previously driven by the LED drivers. | 05-21-2009 |
| 20090134814 | BACKLIGHT UNIT, DISPLAY DEVICE COMPRISING THE SAME, AND CONTROL METHOD THEREOF - A backlight unit includes a plurality of light source units arranged in a matrix form, a light source controller outputting a dimming signal to control a brightness of the light source units and a latch signal to control a light source unit row of the plurality of light source units to be sequentially driven according to a predetermined scanning period, and a plurality of light source driving units connected to light source unit columns of the plurality of light source units and supplying driving signals corresponding to the dimming signal to the light source units in the light source unit columns. | 05-28-2009 |
| 20090134815 | BACKLIGHT UNIT AND LIQUID CRYSTAL DISPLAY DEVICE HAVING THE SAME - A backlight unit includes: a power supplying part; a non-dimming point light source receiving power from the power supplying part and providing a feed back signal to the power supplying part; a dimming control part outputting a dimming signal; and a plurality of dimming point light sources receiving power from the power supplying part, and receiving the dimming signal from the dimming control part. | 05-28-2009 |
| 20090140668 | Marine LED Lighting System and Method - A method and apparatus of lighting a marine habitat for growth utilizing an LED light system. The light system includes an LED light source, a power supply for such light source and a controller for controlling the activation status and the intensity of the LED light source. | 06-04-2009 |
| 20090140669 | Highly Directed, Adjustable Intensity Reading/Keyboard Light with Optimized Spectral Output - A highly-directed light, with color in the blue area of the spectrum, has been developed that meets the particular requirements of two types of users. One application enables a user to see a keyboard clearly enough, predominately from his peripheral vision, to use it while engaged in other principal tasks. The other application allows readers with aging eyesight to more clearly focus on written text without the aid of magnifying or reading glasses. The user's ocular physiology, the physics of the light source and the juxtaposition of the working components for the typical operational scenario were considered while designing an apparatus and method to deliver an optimal working solution. | 06-04-2009 |
| 20090146581 | GAS DISCHARGE LAMP DRIVER CIRCUIT WITH LAMP SELECTION PART - A gas discharge lamp driver circuit, comprising an inverter ( | 06-11-2009 |
| 20090146582 | Colour rendering in compact fluorescent lamps - Compact fluorescent lamps (CFLs) are characterized by impaired colour rendering, due to their low illumination capability near the blood-red edge of the visible spectrum. Red light output by a light emitting diode (LED) has a relatively narrow spectral distribution, and LEDs are able to produce red light with reasonable efficiency. Blending the light output of a CFL with a small amount of blood-red light emitted by one or more inexpensive LEDs improves colour rendering, while reducing the overall energy cost of operating the CFL-LED hybrid lamp. | 06-11-2009 |
| 20090146583 | PORTABLE HANDHELD ILLUMINATION SYSTEM - Illumination systems are described that can include one or more light sources, which can include LEDs, one or more lenses, and one or more optical fibers. A handheld, portable, and surgical intraocular illumination system is disclosed that is disposable, low-cost, and efficient. A surgeon can have direct control of turning the illuminator on and off and adjusting the intensity via a simple control ergonomically placed on the handpiece and/or voice activated control. A coupling is provided, such as through an endo-probe, which is coupled to the one or more light sources. A user input device can be included that is operable to transmit to a feedback controller a first signal based on a user-selected light intensity. The feedback controller can, in response to the first signal, transmit a second signal to the power source for altering the power provided by the power source to the illumination system. | 06-11-2009 |
| 20090146584 | BACKLIGHT ASSEMBLY, DISPLAY APPARATUS HAVING THE BACKLIGHT ASSEMBLY AND METHOD OF PREVENTING A CURRENT CONTROLLER OF THE BACKLIGHT ASSEMBLY FROM BEING SHUT DOWN - A backlight assembly includes a light-emitting apparatus, a multi-channel current controller and a heat distributor. The light-emitting apparatus includes a plurality of light-emitting diode (“LED”) strings. The multi-channel current controller includes a plurality of current control circuits, each of which includes an input channel electrically connected an LED string of the plurality of LED strings and which controls a magnitude of a driving current flowing through the LED string. The heat distributor is electrically connected to the input channel and the LED string, and is disposed adjacent to the input channel | 06-11-2009 |
| 20090146585 | Constant Power Driving-and-Controlling Method for Lighting Elements - The present invention provides a constant power driving-and-controlling method for lighting elements so as to stably drive solid lighting elements. Measuring the input power of lighting elements by a power measuring device and then controlling the input power of the lighting elements by a feedback controller to stabilize the input power of the lighting elements, the effects of environment temperature and the difference of the electrical characteristics of the lighting elements on the input power can be eliminated. | 06-11-2009 |
| 20090153075 | COLOR CONTROL METHOD FOR LED LIGHTING SYSTEMS - When temperature variation occurs to the LED dice of an LED lighting system, a feedback control mechanism is applied to compensate temperature-related wavelength shift for precisely controlling the light generated by the LED dice based on the voltage drop variation or current variation of the LED dice. The color control method for the LED lighting system includes a preliminary detection phase and a feedback control phase. In the preliminary detection phase, voltage drop signals or current signals together with corresponding color and hue signals of each LED module of the LED lighting system are detected. In the feedback control phase, signal compensating processes are performed to precisely control the light generated by the LED lighting system based on the voltage drop variation or the current variation in conjunction with the corresponding color and hue signals generated in the preliminary detection phase. | 06-18-2009 |
| 20090153076 | DRIVING CIRCUIT AND METHOD FOR REDUCING OPERATING TEMPERATURE OF LED PACKAGE - The present invention relates to a driving circuit for driving one or multiple LED chip sets. The driving circuit includes a power converting circuit, one or multiple switching elements, and a controller. The power converting circuit is electrically connected to the one or multiple LED chip sets for receiving an input power and converting the input power into a regulated output voltage or current required for illuminating the one or multiple LED chip sets. The one or multiple switching elements electrically connected to the one or multiple LED chip sets. The controller is electrically connected to the switching elements for controlling alternate or combined simultaneous/alternate switching on/off statuses of the one or multiple switching elements, so that the one or multiple LED chip sets emit light in an alternate lighting manner or a combined simultaneous/alternate lighting manner to reduce the operating temperatures of the one or multiple LED chip sets. | 06-18-2009 |
| 20090153077 | Illumination Unit and Fixing Bracket Thereof - The present invention disclosed herein is an illumination unit and a fixing bracket thereof. The illumination unit according to the present invention includes an illumination lamp and a fluorescent lighting fixture, which are combined in a body. The illumination unit comprises: the illumination lamp configured to include a sealed tube having a predetermined length and two auxiliary tubes, wherein the two auxiliary tubes are successively formed adjacent to both ends of the tubes, and include an electrode and a couple of connection pins, which are respectively formed inside and outside thereof; and the fluorescent lighting fixture configured to include a board of a predetermined configuration and a housing combined with the board by a combination means, wherein the auxiliary tubes are fixed at both ends of the board by a holder. The fluorescent lighting fixture includes a power input terminal, a connection terminal electrically connected to other fluorescent lighting fixture, a substrate electrically connected to the power connection terminal and the connection terminal, and a control unit configured on the substrate and having a stabilizer consisting of electronic components such as a resistance, condenser, and a transistor controlling on/off of the illumination lamp. | 06-18-2009 |
| 20090160360 | APPARATUS AND METHOD FOR CONTROLLING LIGHTING BRIGHTNESS THROUGH PULSE FREQUENCY MODULATION - Provided is an apparatus for controlling lighting brightness through PFM, the apparatus including a lighting control unit that generates a control signal for controlling the brightness of a plurality of lightings; a PFM signal generating unit that is controlled by the control signal so as to generate a plurality of PFM signals having a different frequency from each other; and a driving voltage generating unit that composes the generated PFM signals in accordance with a preset combination, thereby generating driving voltages for driving the lightings. | 06-25-2009 |
| 20090160361 | LIGHT EMITTING DEVICE - A light emitting element group includes a plurality of light emitting element units connected in series. A first current limiting circuit is arranged in series with the light emitting element group, and limits a first drive current flowing from one end to the other end of the light emitting element group. A second current limiting circuit is arranged in parallel to the first current limiting circuit, and limits a second drive current flowing in an opposite direction to the first drive current in the light emitting element group. The light emitting element units are configured to include a first light emitting element and a second light emitting element; an anode of the first light emitting element and a cathode of the second light emitting element are connected, and an anode of the second light emitting element and a cathode of the first light emitting element are connected. | 06-25-2009 |
| 20090160362 | APPARATUS AND METHOD FOR CONTROLLING LIGHTING BRIGHTNESS THROUGH DIGITAL CONVERSION - Provided is an apparatus for controlling lighting brightness including a light control unit that generates a control signal for controlling the brightness of a plurality of lightings; a digital signal generating unit that converts a signal corresponding to the control signal at each period so as to generate non-periodic digital signals; and a driving voltage generating unit that generate driving voltages by converting the digital signals into analog signals. | 06-25-2009 |
| 20090160363 | SOLID STATE LIGHTING DEVICES AND METHODS OF MANUFACTURING THE SAME - Lighting devices comprising first, second and third strings of solid state lighting devices. One aspect further comprises means for supplying first fixed current through the first string, means for supplying second fixed current through the second string, and means for supplying current through the third string. In a second aspect, the first and second strings emit light within a specific area on a 1931 CIE Chromaticity Diagram, and the third string emits light of dominant wavelength 600-640 nm. A third aspect further comprises a power line and a power supply configured to supply a first and second fixed currents through the first and second strings, respectively, and supply a current to the third string. A method of making a lighting device, comprising measuring color output, adjusting current to first, second and/or third strings, and permanently setting currents to the first and second strings. | 06-25-2009 |
| 20090160364 | OPERATING SOLID-STATE LIGHTING ELEMENTS - Operating a lighting device by acquiring a target brightness level of at least one solid-state lighting unit, and determining a reference driving current amplitude for obtaining the target brightness level. If the reference driving current amplitude is below an optimum driving current amplitude, the solid-state lighting unit is operated at the optimum driving current amplitude, which is pulse-width modulated to obtain the target brightness level. | 06-25-2009 |
| 20090160365 | Apparatus Having Supply Voltage Adaptive Light Emitting Component Circuitry And Method Of Controlling - A portable electric apparatus enabled for light irradiation substantially independent of a supply voltage and a method for controlling the light irradiation is provided. The device comprises a power source with a wide total operating voltage variation range, a voltage sensor adapted for generating one or more switch control signals, a plurality of light irradiating components, and at least one switch operable in accordance with the switch control signals. The voltage sensor is configured to generate the switch control signals in dependence of a current supply voltage provided by the power source and several voltage variation sub-ranges defined in relation to the total operating voltage variation range. The switch operable upon the switch control signals is arranged to operatively connect a first number of several irradiating components in series, when the current supply voltage is within an upper sub-range and to operatively connect a second number of one or more irradiating components in parallel, when the current supply voltage is within a lower sub-range. | 06-25-2009 |
| 20090167206 | LIGHTING DEVICE - A lighting device ( | 07-02-2009 |
| 20090167207 | Dimmable Operating Device having Internal Dimming Characteristic - The invention relates to an operating device (BG) for lamps (LM), comprising an interface (IFi), by means of which the device (BG) may be provided with external dimming values. The device (BG) converts said provided external dimming values into internal dimming values on the basis of which the control of the connected lamps (LM) is achieved, the internal dimming values being of higher resolution than the external dimming values. According to the invention, the operating device (BG) is designed such that the conversion of the external dimming values into internal dimming values may be programmed. The operating device (BG) can particularly also be designed such that said conversion can be programmed with regard to the dynamics thereof. A programming can be provided by a time conversion relationship (linear, logarithmic or exponential time curve etc.) by means of which an internal dimming value corresponding to an external dimming value is reached. | 07-02-2009 |
| 20090167208 | METHOD FOR SUPPLYING A DC LOAD VIA MULTIPLE PARALLEL POWER SUPPLIES AND A POWER SUPPLY THEREFOR - The present invention relates to a lamp illumination system and method for sharing power to an electrical DC load that exceeds a capacity of a first DC power supply between the first DC power supply and a second DC power supply such that in combination all of the power supplies are able to provide rated load power, said method comprising: connecting across the load the first and second DC power supplies each having a respective partial series resonance converter that produces during alternate switching cycles an output voltage across respective resonance capacitors thereof and each converter being operable in clamping mode; and operating the converter of the first DC power supply in clamping mode so as to limit an output voltage across the respective resonance capacitors thereof and thereby prevent the first DC power supply from attempting to source a load that exceeds a nominal power rating of the first DC power supply within a predetermined accuracy, whereby any power shortfall to the load is provided by the second DC power supply. | 07-02-2009 |
| 20090174344 | OFFLINE CONTROL CIRCUIT OF LED DRIVER TO CONTROL THE MAXIMUM VOLTAGE AND THE MAXIMUM CURRENT OF LEDS - An offline control circuit of LED driver controls the maximum voltage and the maximum current of a plurality of LEDs. A switching circuit generates a plurality of LED currents through a transformer. A voltage-feedback circuit generates a voltage loop signal in response to the voltage across the LEDs. A current-feedback circuit senses a plurality of LED currents for generating a current loop signal in response the maximum current of the LEDs. A buffer circuit generates a feedback signal in accordance with the voltage loop signal and the current loop signal. The feedback signal is coupled to the switching circuit through an optical-coupler for controlling the maximum voltage and the maximum current of the LEDs. | 07-09-2009 |
| 20090174345 | POWER SUPPLY CIRCUIT - A power supply circuit is proposed for supplying current to a pair of white LEDs connected in series. The circuit comprises a DC-DC power converter, with a charge pump coupled to the output of the DC-DC power converter. A super capacitor is coupled to the charge pump to be charged to a voltage on top of the converter output in a first mode of operation. The super capacitor is discharged through the pair of LEDs during a second mode of operation. A control stage is provided for switching between the first mode of operation and the second mode of operation. | 07-09-2009 |
| 20090174346 | Lighting Apparatus for a Gaming Machine Cabinet - A lighting apparatus for a gaming machine cabinet comprising: a spot light source which emits light relative to a central emission axis; and a translucent diffuser spaced from the spot light source, the diffuser comprising an inner portion located so as to intercept light emitted along the emission axis and an outer portion spaced from the emission axis, the inner and outer portions arranged such that the diffuser prevents transmission of more light in the region of the inner portion than in the region of the outer portion. | 07-09-2009 |
| 20090174347 | DIRECT-CURRENT POWER SUPPLY DEVICE, POWER SUPPLY DEVICE FOR DRIVING LED AND SEMICONDUCTOR INTEGRATED CIRCUIT FOR DRIVING POWER SUPPLY - Disclosed is a direct-current power supply device, including: an inductor; a switching element to intermittently supply a current to the inductor; an output terminal connected to an external unit; a rectifying element connected between the inductor and the output terminal; a PFM comparator to generate a first pulse signal having a pulse width corresponding to a voltage proportional to an output current of the external unit; a duty control circuit to generate a second pulse signal by controlling a pulse width of an oscillation signal having a predetermined frequency in response to an externally-supplied current control signal; a logic circuit configured to output the second pulse signal during a period when the first pulse signal is at a predetermined level; and a drive circuit to generate a drive signal for driving the switching element based on the second pulse signal. | 07-09-2009 |
| 20090179587 | METHOD FOR DIMMING A LIGHT GENERATNG SYSTEM FOR GENERATING LIGHT WITH A VARIABLE COLOR - A method for dimming an illumination system ( | 07-16-2009 |
| 20090179588 | Outdoor lighting device - An outdoor lighting device includes a housing, at least one power supply device and at least one arrayed lighting unit. The housing has a surface forming at least one reflection zone and he reflection zone includes a lens. The power supply device is arranged inside the housing and has a grounding terminal connected to the housing. The power supply device receives and converts an alternate current power into an output of direct current power. The arrayed lighting unit includes plural arrays of lighting elements and a light-transmitting protection layer. The arrayed lighting unit is arranged inside the housing at a location corresponding to the lens and is connected to the power supply device, whereby the power supply device provides the arrayed lighting unit with the direct current power to energize the arrayed lighting unit to give off light that is reflected by the reflection zone. As such, an outdoor lighting device containing therein an arrayed lighting unit and an internal built-in power supply device is formed. | 07-16-2009 |
| 20090184659 | Time division multiplexing a DC-to-DC voltage converter - An apparatus includes a DC-to-DC voltage converter. The DC-to-DC voltage converter has a plurality of pairs of outputs and is configured to apply voltages across the pairs of outputs in a time division multiplexed manner. | 07-23-2009 |
| 20090184660 | Blacklight Unit and Display Device Including the Same - A backlight unit and a display device having a backlight unit are disclosed. The backlight unit includes an LED substrate. The LED substrate includes a plurality of emission regions. An LED is provided in each emission region. An LED driver drives the LED. An LED controller supplies a dimming control signal to the LED driver. The LED controller is provided on a driving board. A first connection unit is provided in the LED substrate. A second connection unit is provided in the driving board. The second connection unit is capable of coupling with the first connection unit. | 07-23-2009 |
| 20090184661 | Electronic circuit for operating a plurality of gas discharge lamps across a common voltage source - The proposed circuit makes it possible to operate a plurality of gas discharge lamps, particularly cold cathode tubes, across a common voltage source. The circuit reduces the resistance tolerance of the lamp characteristic curves through controlled debalancing of the lamp currents with the aid of debalancing modules. Through the active reduction in the resistance tolerance, the requirements placed on the electric strength of the balancing transistors as well as energy losses of the balancing circuit are reduced. | 07-23-2009 |
| 20090184662 | DIMMING SIGNAL GENERATION AND METHODS OF GENERATING DIMMING SIGNALS - A lighting control circuit comprises a dimming level detection circuit, a waveform generator and a comparator circuit. The dimming level detection circuit is configurable to generate a first voltage level signal corresponding to a selected one of at least two different types of dimming signals selected from among an AC phase cut dimming signal, a DC voltage level dimming signal or a PWM dimming signal. The waveform generator is configured to output a periodic waveform. The comparator circuit is configured to compare the periodic waveform with the first voltage level signal to generate an output waveform having a duty cycle corresponding to a dimming level of the one of the at least two different input dimming signals and a frequency corresponding to the frequency of the periodic waveform. Also, methods of controlling lighting. | 07-23-2009 |
| 20090184663 | CIRCUIT FOR A MOTOR VEHICLE, IN PARTICULAR FOR ACTUATING A LIGHTING DEVICE - A circuit is provided for actuating a lighting device in a motor vehicle. The circuit includes first and second light sources, that may include one or more light-emitting diodes. The light sources are connected in parallel, and each have a respective heat sink. Measuring means is configured to determine the functionality of the first and second light sources. | 07-23-2009 |
| 20090189539 | Controlling Current Through Serial LEDs Using a Low Voltage Transistor When Using a High Voltage Driver - Various circuits are described herein where a series transistor used to control current through a string of LEDs, driven by a high voltage, is not subjected to the high voltage when the transistor is turned off pursuant to a PWM signal. To avoid the transistor experiencing the high voltage, the HV regulator is disabled shortly before the transistor is turned off and is enabled shortly after the transistor has turned back on. Control circuits for controlling the regulator and transistor include delay circuits and/or voltage sensing circuits to ensure that the transistor is always on prior to the voltage regulator being enabled pursuant to the incoming PWM signal, and the voltage regulator is always disabled when the first transistor is off pursuant to the incoming PWM signal. | 07-30-2009 |
| 20090189540 | Apparatus for Controlling Light Emitting Devices - The present invention is related to the apparatus for driving the light emitting devices with different colors. The input powers of the light emitting devices are measured and controlled by a feedback control system to maintain constant, and by setting different power inputs to the different light emitting devices different stable colors are produced. | 07-30-2009 |
| 20090189541 | Lighting Device Having Cross-Fade and Method Thereof - A lighting system is provided that includes at least one lighting device, at least one connector, and a plurality of external power sources. The at least one lighting device includes at least one lighting source, and an internal power source applying a first electrical current to illuminate the at least one lighting element, wherein the internal power source supplies the first electrical current. The at least one connector electrically connects to the at least one lighting device. The plurality of external power sources include at least first and second external power sources that are adapted to be electrically connected to the at least one lighting device by the at least one connector. The first external power source supplies a second electrical current to the at least one lighting device to illuminate the at least one lighting source and the second external power source supplies a third electrical current to illuminate the at least one lighting source, such that the internal power source and one of the plurality of external power sources each supply electrical current to illuminate the at least one lighting source at different times. | 07-30-2009 |
| 20090189542 | DIMMER SWITCH - A switching device includes a paddle actuator biased to a rest position and configured to pivot relative to a housing to a depressed position to engage an air-gap switch disposed within the housing. The air-gap switch is configured to change a first state of a load connected to the switching device upon engagement by the paddle actuator. The paddle actuator is defined by a pair of opposing long sides and a pair of opposing short sides and has at least one slot defined therein parallel to the pair of opposing short sides thereof and centrally disposed between the pair of opposing long sides thereof. A rocker actuator is disposed in the at least one slot defined in the paddle actuator and is configured to pivot relative thereto to engage at least one switch. The at least one switch is configured to change a second state of the load connected to the switching device upon engagement by the rocker actuator. | 07-30-2009 |
| 20090195182 | Light Emission Control Circuit for Turning on a Plurality of Light Emitting Elements, and Lighting Apparatus and Portable Information Terminal Having the Same - A light emission control circuit includes a current source circuit for generating currents to be supplied to a plurality of light emitting elements, a plurality of switches disposed corresponding to the respective light emitting elements for switching between supplying or not supplying the currents generated by the current source circuit to the respective light emitting elements, and a PWM control circuit for controlling the respective switches to intermittently supply the currents generated by the current source circuit to the respective light emitting elements and to switch from a stopped state to an initiated state of current supply at different timings for each light emitting element. | 08-06-2009 |
| 20090195183 | CONTROLLER OF LED LIGHTING TO CONTROL THE MAXIMUM VOLTAGE OF LEDS AND THE MAXIMUM VOLTAGE ACROSS CURRENT SOURCES - Controller of LED lighting to control the maximum voltage of LEDs and the maximum voltage across current sources is provided. A voltage-feedback circuit is coupled to the LEDs to sense a voltage-feedback signal for generating a voltage loop signal. Current sources are coupled to the LEDs to control the LED currents. A detection circuit senses the voltages of the current sources for generating a clamp signal in response to a maximum voltage of the current sources. Furthermore, a buffer circuit generates a feedback signal in accordance with the voltage loop signal and the clamp signal. The feedback signal controls the maximum voltage of the LEDs and the maximum voltage across the current sources. | 08-06-2009 |
| 20090195184 | DRIVE CIRCUIT FOR DRIVING A LOAD WITH PULSED CURRENT - A drive circuit ( | 08-06-2009 |
| 20090195185 | POWER SUPPLY OF LUMINOUS SOURCES - A power supply of luminous sources is disclosed comprising a first circuit configured to generate a direct voltage signal from an alternating input voltage and a second circuit having in input the direct voltage signal and configured to generate an alternating voltage signal of rectangular wave shape and null average value. The power supply comprises: a third circuit configured to generate a current signal of triangular wave shape from the alternating voltage signal, a fourth circuit configured to extract from the current signal a voltage signal of triangular wave shape and non-null average value, a fifth circuit configured to control the frequency of the alternating voltage signal based on the average value of the voltage signal extracted by the fourth circuit, a sixth circuit configured to rectify said current signal and supply the luminous sources. | 08-06-2009 |
| 20090195186 | LIGHT EMITTING DIODE LIGHTING DEVICE - A lighting device comprises a mounting head having multiple facets each configured to retain an associated Light Emitting Diode (LED). The LEDs are mounted to the facets with a thermally conductive metal pad and thermally conductive adhesive. A connector for the lighting device inserts into a light socket and receives power for operating the LEDs. A heat transfer body is coupled between the mounting head and the connector and transfer heat generated by the LEDs downward from the mounting head and then radially outward. The mounting head, adhesive, metal pad, and heat transfer body form a heat transfer structure that more effectively removes heat generated by the LEDs. In one embodiment, a dimmer circuit is also provided that allows the LED lighting device to operate with conventional dimmer switches. | 08-06-2009 |
| 20090195187 | Led driving topology, light source moudle based thereon, and digital camera having the same - A LED driving topology includes a LED array and a current source connected in series between two power inputs receiving a positive voltage and a negative voltage respectively. This topology increases the voltage difference across the LED array and hence has the capability of lighting up more serially connected LEDs, without requiring an additional boost circuit or a high voltage. In addition, the circuit of the current source can be made by a low-voltage manufacturing process. | 08-06-2009 |
| 20090195188 | COLD-CATHODE FLUORESCENT LAMP HAVING THIN COAT AS ELECTRICALLY CONNECTED TERMINAL, PRODUCTION METHOD OF THE LAMP, LIGHTING APPARATUS HAVING THE LAMP, BACKLIGHT UNIT, AND LIQUID CRYSTAL DISPLAY APPARATUS - A cold-cathode fluorescent lamp including a glass bulb, a pair of hollow electrodes, and a pair of electrically connected terminals. The hollow electrodes each include an electrode body and a lead wire. The hollow electrodes are hermetically connected to the glass bulb at both ends of the glass bulb. The pair of electrically connected terminals are thin coats that are, except for connection portions connected to lead wires, provided on an outer surface of the glass bulb at both ends of the glass bulb. | 08-06-2009 |
| 20090206771 | LIGHT DRIVER CIRCUIT DEVICE AND BACKLIGHT DEVICE - A light driver circuit device for synchronously driving a plurality of cold cathode fluorescent lamps (CCFLs) is provided. The light driver circuit device includes an inverter circuit board and a balance circuit board. The inverter circuit board has an inverter circuit coupled to a driving signal for outputting a driving voltage to drive the CCFLs synchronously. The balance circuit board and the inverter circuit board are installed separately, and the balance circuit board has a balance circuit coupled to a terminal of each CCFL and the inverter circuit. The CCFL driving architecture is designed to install the inverter circuit and the balance circuit individually, thus effectively reducing the space of the driving circuit and the total cost of the circuit design. Furthermore, the balance circuit board can balance the current in each CCFL effectively, and there is no limitation to where the balance circuit board can be disposed. | 08-20-2009 |
| 20090206772 | DC-DC CONVERTER AND METHOD FOR MINIMIZING BATTERY PEAK PULSE LOADING - The invention relates to an electronic device, comprising a DC-DC converter for converting a primary supply voltage into an output voltage at an output node to be coupled to a super capacitor and a control stage for operating the regulated DC-DC converter in a forward direction in a boost mode providing a boost voltage level at the output node and for operating the regulated DC-DC converter in a reverse direction in a buck mode providing a buck voltage level at an auxiliary node arranged between a primary voltage supply providing the primary supply voltage and the output node, wherein the control stage is adapted to control the DC-DC converter when operating in reverse direction to provide a current to the auxiliary node using the super capacitor as a power source. | 08-20-2009 |
| 20090212716 | Light Source Driving Module and Circuit - A light source driving circuit includes a voltage signal source and a temperature-improving current source for adjusting luminance of a series of LEDs. A first end of the series of LEDs is electrically connected to a ground end. The temperature-improving current source includes an adjustable power supply for outputting an adjustable voltage, a voltage-controlled current source for outputting currents according to the voltage signal source, and a feedback circuit electrically connected between a second end of the series of the LEDs and the adjustable power supply for controlling the output voltage of the adjustable power supply according to the voltage on the second end of the series of LEDs. | 08-27-2009 |
| 20090230880 | DRIVING CIRCUIT AND METHOD FOR LIGHT EMITTING DIODE - A driving circuit for a light emitting diode (LED) and a method thereof are provided. The driving circuit includes a voltage converting circuit and a reference voltage generator. The reference voltage generator generates a reference voltage according to the cathode voltage of the LED. The voltage converting circuit automatically adjusts the driving voltage of the LED based on the reference voltage so as to reduce the possibility of unnecessary power wastage caused by high driving voltage. | 09-17-2009 |
| 20090230881 | LED DRIVER AND CIRCUIT FOR CONTROLLING A POWER SWITCH TO PROVIDE A DRIVING VOLTAGE TO AT LEAST ONE LED - An LED driver circuit and its control circuit for controlling its power switch are provided. The LED driver includes a switch, a PWM controller, a current source and a signal controller. The switch has a first end outputting a driving voltage to at least one LED. The PWM controller provides a PWM signal. The current source provides a driving current flowing through the LED when a dimming control signal is asserted. The signal controller turns off the switch when the dimming control signal is de-asserted and relays the PWM signal from the PWM controller to the switch so that the switch is controlled by the PWM signal when the dimming control signal is asserted. | 09-17-2009 |
| 20090237003 | FEEDBACK CONTROLLED ILLUMINATION SYSTEM HAVING AN ARRAY OF LEDS, AND A DETECTOR AMONG THE LEDS - The present invention relates to an illumination system having an array of differently coloured LEDs, a plurality of collimators, wherein each collimator holds at least one LED, a light mixing element, arranged to mix light generated by the LEDs into a mixed light that is emitted from the illumination system, and a control system for controlling the colour balance of the mixed light. The control system comprises a detector, which is placed among said collimators and encircled by a light shield. The detector detects a fraction of the mixed light that is reflected at an exit window of the mixing element. In this structure the detected light twice passes the mixing element, which provides for a proper mixing of the different colours as well as a proper homogenisation of the light. | 09-24-2009 |
| 20090237004 | Display apparatus - A circuit for controlling illumination means in a display includes illumination means arranged in a series-connection that are supplied with an essentially constant current. For individually controlling the illumination means, switches are provided for bypassing individual illumination means, maintaining the essentially constant current in the series-connection. The switches are floating with respect to a ground potential. A coupling means is thus provided for proper control of the switches. In a development of the invention a floating local power supply is provided with each illumination means and switch for operating the switch. The local power supply is, in one embodiment, powered by the control signal that is used for controlling the bypass switch. In another embodiment provision is made for supplying power to the floating local power supply. A driving method according to the embodiments of the circuit is also described. | 09-24-2009 |
| 20090243510 | Circuit Arrangement and Method For Controlling an Electrical Load - A circuit arrangement ( | 10-01-2009 |
| 20090243511 | Stabilized high power LED module - A stabilized high power LED module includes a supporting frame and an illuminating unit. The supporting frame is made of thermal conductive material for radiating heat produced by the illuminating unit. The illuminating unit includes a light circuit supported by the radiating supporting frame, and a plurality of illuminators which are electrically mounted to the light circuit and spacedly aligned along the supporting frame, wherein the light circuit has a voltage regulation preset for the illuminators in series to stabilize a voltage supply of the light circuit for protecting the illuminators. | 10-01-2009 |
| 20090243512 | Drive circuit, light emitting diode head, and image forming apparatus - A drive circuit includes a drive element for supplying a drive current to a driven element; a control voltage generation circuit for outputting a control voltage to the drive element to generate the drive current through inputting a reference voltage; and a switch section for shutting down the reference voltage when the driven element is not driven so that the control voltage decreases to a level not to generate the drive current. | 10-01-2009 |
| 20090243513 | BACKLIGHT ASSEMBLY AND LIQUID CRYSTAL DISPLAY INCLUDING THE SAME - A backlight assembly including: a plurality of lamp sockets each having a socket electrode; a plurality of lamps inserted into the plurality of lamp sockets, respectively, and each of the plurality of lamps comprising a lamp electrode connected with the socket electrode of the lamp socket in which the lamp is inserted; an inverter outputting a driving voltage for driving the plurality of lamps; and a balance board having a plurality of balance capacitors, wherein the plurality of balance capacitors are inserted into the plurality of lamp sockets, respectively, and each of the balance capacitors comprises a first balance electrode provided with the driving voltage and a second balance electrode connected with the socket electrode of the lamp socket in which the balance capacitor is inserted. | 10-01-2009 |
| 20090243514 | POWER SUPPLY APPARATUS FOR LIGHTING DEVICE - The apparatus is provided with a plurality of lighting devices whose light sources are one or more solid light emitting elements which are supplied with current from a single direct-current power source, lit, and driven respectively, a single main controller | 10-01-2009 |
| 20090251066 | LIGHTING UNIT - In a lighting unit for operating lamps (LA | 10-08-2009 |
| 20090251067 | PULSED LED ILLUMINATION TO SAVE ENERGY - A method for providing lighting includes sweeping an array of light sources on and sweeping the array of light sources off. The array of light sources being swept on and off at a frequency substantially higher than a critical flicker frequency to enhance perceived brightness. An apparatus includes a plurality of light sources organized in a matrix and an intelligent control electrically connected to the plurality of light sources, wherein the intelligent control being adapted to sweep the light sources on and sweep the light sources off at a frequency substantially higher than a critical flicker frequency to provide enhanced perceived brightness. | 10-08-2009 |
| 20090251068 | Solid State Lighting Circuit and Controls - In some embodiments, a solid state lighting circuit may include one or more of the following features: (a) a plurality of emitters operably connected to a power supply (b) the power supply operably coupled in series with a current limiting device, where one or more of the emitters is bypassed with a switched circuit, and (c) at least one MOSFET switch operably coupled to the voltage divider circuit. | 10-08-2009 |
| 20090251069 | SYSTEMS AND METHODS FOR LIGHTING CONTROL IN FLIGHT DECK DEVICES - Systems and methods for illuminating flight deck devices are disclosed. In one embodiment, a flight deck panel illumination system includes at least one illuminated panel having at least one illumination source, and a power supply coupled to the at least one illumination source and to an electrical energy source that is configured to selectively provide a suitable power conversion mode in response to an applied signal. A processor is coupled to the power supply to generate the applied signal. | 10-08-2009 |
| 20090256495 | BACK LIGHT MODULE - A back light module is provided. The back light module includes a plurality of light source matrixes, a current adjusting circuit and a light source driving circuit, wherein each of the light source matrixes includes N light emitting units and N is an integer greater than 1. First ends of the light emitting units are electrically connected to each other, and a second end of the i | 10-15-2009 |
| 20090256496 | Light-emitting device - Light-emitting device ( | 10-15-2009 |
| 20090261752 | BALLAST - A ballast comprising a first input terminal, a second input terminal, a switch circuit, and a plurality of lamp sets is provided. The switch circuit comprises a first switch and a second switch connected with the first one. The switches are connected with the first and second input terminals respectively. The lamp sets are connected in parallel with each other and have an arrangement sequence. Each of the lamp sets is coupled to the first and second switches and comprises a first lamp having a first filament. The filaments are connected in series according to the arrangement order so that at least one junction is formed in the at least one connection point. The first one of the first filaments is coupled to the first switch. The last one of the first filaments is coupled to the second switch. Thereby, the ballast can be implemented by less internal connection terminals and leads. | 10-22-2009 |
| 20090261753 | LOAD DRIVING CIRCUIT AND METHOD OF SETTING LOAD CURRENT THEREOF - A load driving circuit is disclosed that allows a charge pump circuit to operate at an optimum step-up ratio without frequently changing the step-up ratio. The load driving circuit includes a step-up circuit; a current setting circuit that sets a value of an electric current to be supplied to a load; a constant current circuit generating a constant electric current having the set value; a determination circuit; and a control circuit. In response to a load current setting signal, the current setting circuit sets the electric current to be maximum, and decreases the electric current step by step down to a preset value. Each time the electric current is decreased by one step, the control circuit changes the step-up ratio according to the determination results of the determination circuit, until the constant current circuit supplies the set electric current. | 10-22-2009 |
| 20090261754 | LAMP DRIVING CIRCUIT - The present invention relates to a lamp driving circuit capable of achieving miniaturization by using a safe insulation type multi-output transformer. The lamp driving circuit in accordance with the present invention includes a rectification unit for rectifying an input voltage; a PFC (Power Factor Correction) unit for enhancing a power factor of a voltage rectified by the rectification unit and converting the rectified voltage into a DC voltage; a switching unit for switching the DC voltage of the PFC unit in order to convert the DC voltage into a square wave voltage; an insulation transformer unit which includes a transformer to secure safe insulation by including an input terminal and a ground terminal of one primary side and all output terminals of first and second secondary sides each of which includes two output terminals at sides facing each other and a resonant capacitor, and outputs a plurality of driving voltages which have the same amplitude and drive a plurality of lamps respectively by receiving the square wave voltages outputted from the switching unit; and an insulation feedback unit for sensing any one of the plurality of driving voltages and transmitting the driving voltage to the switching unit positioned at the primary side of the transformer, wherein the insulation feedback unit insulates the primary side of the transformer from the secondary side of the transformer. | 10-22-2009 |
| 20090267533 | EXPANDABLE LED MODULE FOR ARBITRARILY DISPLAY ASSEMBLY - An expandable LED module for arbitrary display assembly, comprises: a print circuit board, used to carry the following devices; at least a light emitting diode, disposed on said print circuit board; a first connecting device, disposed on one side of said print circuit board and coupled to said light emitting diode; and a second connecting device, disposed on the other side of said print circuit board, coupled to said light emitting diode, and capable of interconnecting with said first connecting device, wherein said first connecting device and second connecting device can be utilized to expand said LED modules to accomplish any assembly indicating figures, words, numbers, or symbols. | 10-29-2009 |
| 20090267534 | LIGHT EMITTING DIODE ASSEMBLY - A circuit in accordance with one embodiment of the invention can include a light emitting diode (LED) assembly comprising a plurality of LED channels that are controlled independently with a switch mode driver. The circuit also includes N+1 wires coupled to said LED assembly, where N is equal to the number of said plurality of LED channels of said LED assembly. | 10-29-2009 |
| 20090267535 | AC POWER SOURCE APPARATUS - An AC power source apparatus includes an inverter | 10-29-2009 |
| 20090273301 | LED Driving Arrangement - A circuit for driving LEDs includes:—transformer with a secondary winding for driving the LEDs and a primary winding,—a half-bridge arrangement fed with an input voltage and coupled to the transformer,—a resonant circuit between the half-bridge arrangement and the primary winding of the transformer, the resonant circuit having a given resonance frequency, and—a controller configured for switching the half-bridge arrangement with a switching frequency variable between first and second values. The second value is closer than the first value to the resonance frequency of the resonant circuit created between the half-bridge arrangement and the primary winding of the transformer. This boosts the voltage fed towards the LEDs via the transformer. The LEDs are preferably included in the form of series of LEDs connected to the secondary winding of the transformer via a rectifier placed outside the housing of the power-supply. | 11-05-2009 |
| 20090278471 | CIRCUIT DEVICE FOR LIGHT-EMITTING DIODE DRIVING AND STABILIZING SYSTEM - A circuit device for an LED's driving and stabilizing system includes an AC/DC controllable driving voltage source, a feedback driving controller, an LED demodulation driving controller controllable driving voltage source, an external regulator, and an LED modular device. While various internal conditions or factors of the circuit device may be obtained through integrally or partially setting and computing, the circuit device may also be externally connected to an input signal source according to the characteristics of different attributive conditions to thereby achieve the function of automatic regulation, enabling the LED modular device connected thereto and having been used over a long period of time to have lowered brightness attenuation rate, reduced power loss, reduced heat generation, and accordingly, extended the LED's lifespan. | 11-12-2009 |
| 20090278472 | METHOD AND SYSTEM FOR A NETWORK OF WIRELESS BALLAST-POWERED CONTROLLERS - Autonomous lighting subsystems include ballast-powered wireless nodes for receiving control signals to control lighting devices. Autonomous lighting subsystems may be networked with other autonomous lighting subsystems to control various building-devices, including but not limited to lighting ballasts, occupancy sensors, daylight harvesters, and building automation control devices. | 11-12-2009 |
| 20090278473 | METHOD AND DEVICE FOR DRIVING AN ARRAY OF LIGHT SOURCES - An illumination system ( | 11-12-2009 |
| 20090278474 | LOW-PROFILE PATHWAY ILLUMINATION SYSTEM - A luminaire to illuminate surfaces comprises a housing, a mounting fixture and a light source. The housing includes a base having a bottom surface positionable on a surface to be illuminated, an interior, and at least one window providing access between the interior and an exterior of the housing. The mounting fixture extends at least approximately perpendicularly downward with respect to the bottom surface of the base to secure the housing into a peripheral portion of the surface to be illuminated. The light source has a principal axis of emission that is directed outwardly through the window of the housing at a downwardly oriented angle with respect to the bottom surface of the base such that, when in use with the luminaire mounted to the surface to be illuminated, the principal axis of emission of the light source is directed at a portion of the surface to be illuminated. | 11-12-2009 |
| 20090278475 | HEARTBEAT EMULATING LIGHTED DEVICE - A heartbeat emulating lighted device includes a base layer having an upper surface and a lower surface. A control circuit and light source are coupled with the base layer, and the control circuit and light source are capable of illuminating the base layer and outputting a first light pulse output and a second light pulse output, such that a systole and a diastole of a human heartbeat is visually represented. | 11-12-2009 |
| 20090284171 | LED CURRENT CONTROLLER AND METHOD THEREFOR - In one embodiment, an LED current control circuit is configured with a sample and hold circuit that samples an error signal of an error amplifier during one time and holds the sampled value during a second time. | 11-19-2009 |
| 20090284172 | Multiple-Cell LED Arrangement, Related Cell and Manufacturing Process - A LED arrangement includes: —a plurality of cells ( | 11-19-2009 |
| 20090284173 | LAMP CONTROL SYSTEM - A lamp control system driving at least two discharge lamps according to at least two control instructions includes a control circuit, a switch circuit, a transformer resonance circuit, and a source transformer circuit. The control circuit generates a control signal to which the source transformer circuit is electrically connected, transforming the control signal to at least one alternating current (AC) signal, and the transformer resonance circuit is electrically connected to the source transformer circuit and the discharge lamps, transforming the at least one AC signal to one or more electrical signals to respectively drive one or more discharge lamps, the switch circuit, electrically connected to the source transformer circuit and the transformer resonance circuit, drives source transformer circuit output of the at least one AC signals to the transformer resonance circuit. | 11-19-2009 |
| 20090284174 | LIGHT EMITTING DIODE CIRCUIT AND ARRANGEMENT AND DEVICE - Disclosed are light emitting diode circuits employing first sub-circuits including first light emitting diodes and connected in parallel with second sub-circuits including second light emitting diodes and switches for, in conducting states, switching on the second light emitting diodes and switching off the first light emitting diodes and for, in non-conducting states, switching off the second light emitting diodes and switching on the first light emitting diodes. The first sub-circuits and the second sub-circuits have different signal characteristics such as different minimum threshold voltages to be realized by using different kinds of light emitting diodes, by using different total numbers of serial light emitting diodes, or by adding threshold voltage elements to the first sub-circuits. | 11-19-2009 |
| 20090284175 | LIQUID CRYSTAL DISPLAY AND METHOD OF DRIVING THE SAME - A liquid crystal display (“LCD”) includes; a liquid crystal panel which displays an image, and a plurality of light-emitting blocks which provide light to the liquid crystal panel, wherein each of the light-emitting blocks includes a first string having a plurality of first light-emitting elements connected in series and a second string having a plurality of second light-emitting elements connected in series, and an amount of light emitted by each of the first light-emitting elements is different from an amount of light emitted by each of the second light-emitting elements. | 11-19-2009 |
| 20090284176 | INTELLIGENT ILLUMNIATION SOURCE PARTICULARLY FOR MACHINE VISION SYSTEMS - An illumination apparatus for use with a machine vision camera comprises at least one light source, preferably one or more LEDs, and control circuitry. The control circuitry is operative to receive an illumination command signal and selectively cause application of power to the light source in response thereto. The circuitry includes an electronic switch connected in circuit with the light source. Override circuitry is connected to control operation of the electronic switch so as to cause flow of current through the light source upon receipt of the illumination command signal in a variable manner so as to limit power dissipation. | 11-19-2009 |
| 20090289577 | CONTROL OF BATH WATER COLOR WITH LIGHT - The invention provides a sanitary arrangement with a vessel for a liquid, wherein the vessel further comprises light sources to illuminate the liquid received in the vessel. The illumination colors of the vessel light sources are controllable. The arrangement further comprises a liquid source for a jet of liquid to fill the vessel. The liquid source comprises light sources to illuminate the jet of liquid from the liquid source. The illumination color of these light sources is also controllable. A control unit is provided to control the one or more vessel illumination colors of the vessel light sources. The illumination color of the vessel light sources has a relationship with the illumination color of the light sources of the liquid source. | 11-26-2009 |
| 20090289578 | PARALLEL TYPE SINGLE-WIRE ADDRESSABLE LIGHTING DEVICE - A parallel type single-wire addressable light device includes a microprocessor, at least one lighting module and at least one signal amplifier. The microprocessor includes an address transmission line and a data transmission line. The plurality of lighting modules is composed of a control driver and at least one lamp set, and the control driver is connected in parallel to the microprocessor through the address transmission line and the data transmission line. The signal amplifier is electrically connected between the microprocessor and the control driver. The address transmission line of the microprocessor transmits an address define signal to set the address of each lighting module, and then the data transmission line outputs data to control any one or any two or more lighting modules for controlling a change of light. | 11-26-2009 |
| 20090289579 | AMBIENT LED LIGHTING SYSTEM AND METHOD - In at least one embodiment, an ambient lighting system comprising a lighting module and a controller is provided. The lighting module is configured to drive a light emitting device (LED) arrangement to display a desired ambient color in response to a lighting control signal and to transmit a lighting status signal providing diagnostic information for one of the lighting module and the LED arrangement. The controller is configured to transmit the lighting control signal including first digital data indicative of the desired ambient color and a feed signal for powering the lighting module on a bi-directional data communication bus between the controller and the lighting module. The controller is further configured to receive the lighting status signal on the bi-directional data communication bus. | 11-26-2009 |
| 20090295307 | Inspection lamp with buck boost circuit control - A lamp for fluorescent inspection having a housing with a first end and a second end. The first end includes a head having at least one LED which emits light with a wavelength designed to excite a material so as to produce fluorescence. The switch controls power the a circuit within the housing for powering the at least one LED. The circuit retards voltage when voltage exceeds a first threshold. In one embodiment the circuit boosts voltage when voltage drops below a second threshold, and blocks voltage when voltage drops below a third threshold. | 12-03-2009 |
| 20090302778 | SWITCHING LED DRIVER CIRCUIT - An LED driver circuit sequentially and repeatingly switches a plurality of LED arrays to result in blink with high frequency. A PWM generator outputs n series of high frequency periodic PWM signals. The period (T) and duty cycle (d) of each series of PWM signal are the same as each other, but pulse portions of the PWM signals sequentially follow over time, i.e. d=1/n. Each PWM signal is sent to a dimming constant current source for separately outputting a driving power with the same timing as the input PWM signals to one of the LED arrays, so that the LED arrays make a high frequency blink. The blink frequencies of each and overall LED arrays are 1/T Hz and n/T Hz, respectively. The driving current of LEDs can be increased over a rated average forward current I | 12-10-2009 |
| 20090302779 | Hybrid-control current driver for dimming and color mixing in display and illumination systems - A control/driver circuit produces variable current output for a lighting system providing improved dimming and color-mixing capability by allowing digital modulation control in addition to analog control over a range of illumination intensities. The circuit and method described is preferably adapted to higher current applications such as LED lighting systems using high-power LEDs. The output current of the circuit varies in proportion to the voltage level of an analog control signal, and additionally in proportion to the relative duty cycle of a digital pulsed control input. | 12-10-2009 |
| 20090302780 | BACKLIGHT ASSEMBLY AND DISPLAY DEVICE HAVING THE SAME - A backlight assembly includes a receiving container, a light-generating unit and a reflective sheet. The receiving container includes a bottom plate and a sidewall. The sidewall extends upwardly from an edge portion of the bottom plate to form a receiving space. The light-generating unit includes a light-emitting substrate disposed in the receiving space, light-emitting diodes (LEDs) and a driving circuit. The light-emitting substrate includes a light-emitting region and a peripheral region. The LEDs are disposed in the light-emitting region. The driving circuit disposed in the peripheral region controls the LEDs. The reflective sheet includes a center portion and a cover portion. The center portion is disposed on the light-emitting region. The cover portion is disposed on the peripheral region to cover the driving circuit. | 12-10-2009 |
| 20090309515 | Marine LED Lighting System and Method - A method and apparatus of lighting a marine habitat for growth utilizing an LED light system. The light system includes an LED light source, a power supply for such light source and a controller for controlling the activation status and the intensity of the LED light source. | 12-17-2009 |
| 20090315477 | CONVERTING DIMMER SWITCH AC OUTPUT DUTY CYCLE VARIATION INTO AMPLITUDE VARIATION - A method of adapting the output of commercially available dimmer switches for use with non-incandescent light sources. Commercially available TRIAC and SCR based dimmers ( | 12-24-2009 |
| 20090315478 | LIGHTING SYSTEM HAVING MASTER AND SLAVE LIGHTING FIXTURES - A lighting system includes a master lighting fixture and at least one slave lighting fixture. Each lighting fixture includes a base, a light source, and a controller. The master lighting fixture includes a master controller contained within its base and a set of buttons to control the operation of all of the lighting fixtures. The master controller wirelessly transmits a control signal to the slave lighting fixtures depending on depression of the buttons by a user in order to be able to individually control all of the lighting fixtures in the system by utilizing buttons on the master lighting fixture. The fixtures may be disposed anywhere within a room or other location, and, without the need for additional wiring, operation of one device allows for the control of all of the devices within the system. Each lighting fixture may be in the form of a standard table lamp, floor lamp or other form of lighting fixture. | 12-24-2009 |
| 20090315479 | VEHICLE HEAD LAMP APPARATUS - A vehicle headlamp apparatus is provided. The vehicle headlamp apparatus includes right and left headlamps, and a controller which controls the right and left headlamps. Each of the right and left headlamps is configured to produce a low beam light distribution pattern having a horizontal cutoff line to irradiate a region in front the vehicle headlamp apparatus, and is operable to selectively produce one or both of a right side auxiliary light distribution pattern above a right part of the horizontal cutoff line and a left side auxiliary light distribution pattern above a left part of the horizontal cutoff line. Based on a position of a forward vehicle ahead of the vehicle headlamp apparatus, the controller controls each of the right and left headlamps to produce one or both of the right side auxiliary light distribution pattern and the left side auxiliary light distribution pattern. | 12-24-2009 |
| 20090322250 | NETWORKED ARCHITECTURAL LIGHTING WITH CUSTOMIZABLE COLOR ACCENTS - The present invention provides systems and apparatuses for dynamically controlling the operational modes of a single luminaire or a group of networked luminaires configured to deliver an illumination pattern having a decorative colored glow surrounding a central region of substantially uniform brightness. A control module for the luminaire is configured to drive three dimmable fluorescent ballasts, as well as a LED module. A variety of operational modes including different schemes for color mixing and color cycle control can be selected by a user and implemented by a microcontroller. A group of luminaires is connected in a standard communication protocol-based master-slave configuration, where the slave units respond to commands received from the master unit, and the last slave unit automatically engages terminating and biasing resistors for proper operation of the network. | 12-31-2009 |
| 20100001661 | LED CURRENT-SUPPLYING CIRCUIT AND LED CURRENT-CONTROLLING CIRCUIT - A LED current-controlling circuit includes a first magnetic amplifier, a first current detecting circuit, a first magnetic amplifier controller and a first diode. The first magnetic amplifier is connected to an input terminal of the LED current-controlling circuit and the first LED string. The first current detecting circuit is connected to the first LED string in series for detecting the first current flowing through the first LED string. The first magnetic amplifier controller is used for controlling on/off statuses of the first magnetic amplifier. The first diode is connected to an output terminal of the first magnetic amplifier, the first LED string and the first magnetic amplifier controller. The first magnetic amplifier controller controls on/off statuses of the first magnetic amplifier according to the magnitude of the first current, thereby maintaining the first current at a specified DC current level. | 01-07-2010 |
| 20100001662 | LED CANDELABRA FIXTURE AND LAMP - An electric lighting lamp or bulb having an LED light source mounted to a candle base, and wherein driver circuitry for the LED light source is housed within the candle base. A transparent envelope encloses the LED light source, and the lamp presents the appearance of a traditional candle and/or of an incandescent candelabra or chandelier-type lamp or bulb. | 01-07-2010 |
| 20100007287 | MULTI-CHANNEL DRIVING CIRCUIT AND DRIVING METHOD THEREOF - A driving method of a multi-channel driving circuit includes: receiving multiple driving signals corresponding to multiple to-be-driven elements, providing multiple randomized time delays, respectively adjusting the driving signals according to the randomized time delays to generate multiple delayed driving signals, and respectively driving the corresponding to-be-driven elements according to the delayed driving signals. | 01-14-2010 |
| 20100007288 | BACKLIGHT MODULE CONTROL SYSTEM - A backlight module control system includes a power supply, a first backlight sub-module, a second backlight sub-module, a first transformer and a second transformer. The power supply is utilized for providing an operating power to the backlight module control system. A primary side and a secondary side of the first transformer are respectively coupled to the power supply and a first node of the first backlight sub-module. A primary side of the second transformer is coupled to the power supply, and a secondary side of the second transformer is coupled to the secondary side of the second transformer and a first node of the second backlight sub-module. | 01-14-2010 |
| 20100007289 | Multi configurable lighting and energy control system and modules - The present disclosure generally relates to lighting and energy control systems. In some embodiments, a control module is provided that can facilitate installation of lighting systems and control power consumption. Control module may control a ballast coupled to one or more lamps in a light fixture or energy consuming devices on a circuit. The control module can retrofit with various junction boxes or light fixtures and thus enable energy and sensor controls to be deployed in a wide variety of lighting installations which may be inaccessible due to cost or installation constraints. Control device may include a control circuit which provides relaying and one or more interfaces to provide power controls to various devices, such as ballasts, motors, appliances, or other devices. | 01-14-2010 |
| 20100013409 | LED Lamp - An LED lamp is provided in which the output light intensity of the LEDs in the LED lamp is adjusted based on the input voltage to the LED lamp. The LED lamp comprises one or more LEDs, and an LED driver configured to receive an input voltage and provide regulated current to said one or more LEDs, where the LED driver is configured to adjust the regulated current to said one or more LEDs according to the input voltage to adjust the output light intensity of said one or more LEDs. The LED lamp can be a direct replacement of conventional incandescent lamps in typical wiring configurations found in residential and commercial building lighting applications that use conventional dimmer switches that carry out dimming by changing the input voltage to the LED lamp. | 01-21-2010 |
| 20100013410 | POWER CONTROL DEVICE FOR A LOAD, AND LIGHTING ASSEMBLY HAVING THE SAME - A power control device includes a switch unit coupled in series to a load that has a rated power consumption and that is supplied with power from an external power source, and the power source. A current detecting unit is coupled to the load and outputs a detector signal corresponding to a detected current flowing through the load. A processing unit receives the detector signal from the current detecting unit, and processes the detector signal so as to output a power indicating signal that varies with a consumed power of the load. A control unit controls conduction times of the switch unit based upon the power indicating signal from the processing unit and a predetermined standard criterion corresponding to the rated power consumption of the load such that the detected current corresponds to the rated power consumption of the load. | 01-21-2010 |
| 20100013411 | DRIVE DEVICE AND METHOD FOR OPERATING AT LEAST ONE SERIES CIRCUIT OF LIGHT-EMITTING DIODES - A device for at least one series circuit of multiple light-emitting diodes, having a voltage regulation unit for regulating an operating voltage for the at least one series circuit of the light-emitting diodes. A current regulation unit for regulating the current through the particular series circuit of light-emitting diodes is provided for each series circuit of light-emitting diodes, and the current regulation unit is connected to the voltage regulation unit in order to transmit a current regulation signal to the voltage regulation unit. | 01-21-2010 |
| 20100013412 | TRANSIENT SUPPRESSION FOR BOOST REGULATOR - A circuit for generating an output voltage to a top node of a plurality of LED strings. The circuit includes an inductor having a load current flowing therethrough and a switching transistor responsive to a switching control signal. An integrator generates a compensation voltage responsive to a voltage at a bottom node of the LED string and a reference voltage. Circuitry for combining an offset with the compensation voltage is responsive to the compensation voltage and the load current through the inductor. The offset is generated only during a step load change of the load current and substantially reduces voltage transients from the compensation voltage and the output voltage. A summation circuit sums the compensation voltage including the offset with at least the voltage at the bottom node of the LED string to generate a first control signal. A latch generates the switching control signal responsive to the first control signal and a leading edge blanking signal. | 01-21-2010 |
| 20100019689 | LED LIGHTING SYSTEM - A light emitting diode lighting device and system that can be used for illuminating the interior and/or exterior of vehicles, aircraft, watercraft, signage or buildings is provided. It includes a voltage feedback constant current power supply circuitry and high power LEDs. The printed circuit assemblies are firmly mounted onto a continuous or semi-continuous mounting channel case that also works as a heat sink. By this means, it not only increases the reliability of the LED lighting tube but also it provides sufficient heat dissipation capability for the heat generated by the LEDs. Since the operating temperature of the LEDs is controlled and stays in cool condition, it dramatically increases the LED's lifetime and efficiency. The end caps of this LED lighting device are fully compatible with existing conventional fluorescent light fixtures and can directly replace those fluorescent lighting tubes in vehicles, mass-transit, watercrafts, aircrafts, signage, furniture, equipment or buildings with minimal modifications. | 01-28-2010 |
| 20100019690 | PORTABLE LAMP BANK AND LENS ASSEMBLY FOR USE THEREWITH - A portable lamp bank in accordance with an embodiment of the present application includes an elongated housing, a power source mounted in the housing and electrically connected to the external high voltage input voltage to provide a substantially constant driving voltage and a first light engine mounted in the elongated housing and electrically connected to the power source. The light engine includes a plurality of high output light emitting diodes that are driven based on the driving voltage of the power source to provide output light. | 01-28-2010 |
| 20100019691 | LED ILLUMINATING DEVICE - A LED illuminating device includes: a power source device, a controller, an LED lighting device, and an LED unit | 01-28-2010 |
| 20100019692 | POWER CONVERSION APPARATUS - A power conversion apparatus includes a first DC converter to convert an AC voltage from an AC power source into a DC voltage and correct a power factor, a light emitting load to emit light under a predetermined DC voltage, a second DC converter to electrically insulate the first DC converter and the light emitting load from each other, convert the DC voltage from the first DC converter into the predetermined DC voltage, and supply the predetermined DC voltage to the light emitting load, a plurality of loads to operate under low DC voltages, and a third DC converter to electrically insulate the first DC converter and the plurality of loads from each other, convert the DC voltage from the first DC converter into low DC voltages, and supply the low DC voltages to the plurality of loads. | 01-28-2010 |
| 20100019693 | CONTROLLED VOLTAGE SOURCE FOR LED DRIVERS - The present invention relates to an electronic device for driving a light emitting semiconductor device, which includes controlling means (CNTL) being adapted for controlling a switch mode power supply for supplying the light emitting semiconductor device in response to a sensing value received by the controlling means which is indicative of a voltage across a current source for determining a current through the light emitting semiconductor device, wherein the switch-mode power supply is controlled such that the voltage across the current source is minimum. | 01-28-2010 |
| 20100026205 | METHOD OF OPERATING A MULTI-FUNCTION FLASHLIGHT - A multi-function flashlight device is provided in either an all white light emitting diode (LED) or a colored LED version that allows versatile functionality. The flashlight is fashioned to have an outer housing that includes both an integrated means for interfacing the flashlight with a firearm and a surface thereon that serves as a handgrip. The outer housing of the flashlight is configured to be engaged by a clamping assembly that facilitates integration of the flashlight with standard firearm accessory rail assemblies. The flashlight head includes a high-output white LED positioned centrally within an optical element such as a reflector. Should the flashlight be a colored light, four other positions are provided around the periphery of the lens that contain colored LEDs. The flashlight provides the user the ability to selectively and individually control the mode of operation for all of the LEDs contained therein. | 02-04-2010 |
| 20100026206 | METHOD FOR COLOR TRANSITION FOR AMBIENT OR GENERAL ILLUMINATION SYSTEM - The invention relates to a method of controlling a temporal variation of light emitted by an illumination system. The light emitted by the illumination system varies from light having a start color point ( | 02-04-2010 |
| 20100026207 | Current Regulation Unit In A Circuit Of Light Sources Connected In Series - A current regulation unit in a circuit composed of light sources, connected in series, interposed between an electric source (SE) and the series connection electric circuit (E) of the light sources (SI | 02-04-2010 |
| 20100033109 | Driving circuit for powering light sources - There is provided a driving circuit for powering a plurality of light sources. The driving circuit includes a power converter, a plurality of switching regulators and a plurality of switching balance controllers. The power converter is operable for receiving an input voltage and for providing a regulated voltage to the light sources. The switching regulators are operable for adjusting forward voltages of the light sources respectively. The switching balance controllers are operable for generating pulse modulation signals to control the switching regulators respectively. | 02-11-2010 |
| 20100033110 | LED DRIVER AND POWER CONTROL CIRCUIT WITH SPREAD SPECTRUM FREQUENCY MODULATION FUNCTION AND DISPLAY PANEL USING THE SAME - The present invention relates to an LED driver, power control circuit and display panel using the same. The LED driver has the function of spread spectrum frequency modulation (SSFM). The circuit topology of the driver includes a power converter, an error amplifier, a feedback circuit, a saw-tooth generator and a driving circuit. The present invention adds the SSFM circuit in the saw-tooth generator to generate a time variant current according to time variant function, so that the saw-tooth wave could be changed by the time variant current as mentioned above. Therefore, the frequency of the driving pulse generated by the LED driver will be varied as time. As the result, the reduction of the electromagnetic interference (EMI) can be achieved. | 02-11-2010 |
| 20100033111 | ELECTROLUMINESCENT FILMS FOR BACKLIGHTING LIQUID CRYSTAL DISPLAYS - The present invention replaces the conventional cold cathode fluorescent tubes used in backlighting units of liquid crystal displays with an integrated electro-luminescent film structure, subdivided into electrically isolated micro-panels. Ideally, the electro-luminescent structure comprises separate red, green and blue micro-panels providing full color capabilities. Alternatively, the electro-luminescent film structure includes stacked groups of layers, in which each group emits a different color and is independently controllable. | 02-11-2010 |
| 20100045205 | REMOTE COLOR CONTROL DEVICE AND LIGHTING SYSTEM - A device is disclosed for wireless control of color of light emitted by a lighting system. The lighting system comprises signal receiving means and means for adjusting the color of light emitted from at least one lighting element, in response to a received color control signal from the device. The device for wireless control comprises means for—generating color information data, said data being indicative of a desired color of light to be emitted by the lighting system, means for modulating a first carrier signal in accordance with the color information data, and means for transmitting said color control signal in the form of a beam of said first modulated carrier signal to the lighting system. | 02-25-2010 |
| 20100045206 | LED Driving Circuit - An LED driving circuit to provide DC power to an LED to generate light includes a voltage-lowering regulation circuit, a rectification circuit and a filter and current-limiting circuit. The voltage-lowering regulation circuit aims to regulate impedance and provide a back electromotive force with polarity opposite to input voltage so that input power passed through the voltage-lowering regulation circuit is offset by the back electromotive force to a lower voltage. Then the input power passes through the rectification circuit to become DC power. The filter and current-limiting circuit receives the DC power and has at least one filter element to absorb or release the voltage to perform filtering and at least one current-limiting resistor to limit DC value. Therefore, the DC power has a steady voltage and current to energize the LED for lighting. | 02-25-2010 |
| 20100045207 | Low-cost drive system for an LED triad - A drive system for powering LED triads includes a controller for supplying power to one or more LED triad modules with integral encoding of the desired hue and intensity information. The LED triad modules each include an LED triad and decoding circuitry for activating the individual LED elements of the triad according to the encoded hue and intensity information. In the illustrated configuration, the controller supplies power to the LED triad modules over a pair of conductors, and the supplied power is modulated using a four-phase encoding sequence that is decoded by the decoding circuitry of each LED triad module so that each LED triad module produces light of the desired hue and intensity. | 02-25-2010 |
| 20100045208 | Circuit Arrangement for Operating at Least One Semiconductor Light Source - A circuit arrangement for operating at least one semiconductor light source having an input for inputting an input voltage, an output for outputting an output voltage to the semiconductor light source, wherein the main current path of the circuit arrangement lies between the two input terminals, and comprises a series circuit formed by a switch, an inductance and a back-to-back connection of a first diode or light emitting diode and the at least one semiconductor light source, wherein a first storage capacitor is arranged in parallel with the at least one semiconductor light source, and a second diode is arranged in series with this parallel connection. | 02-25-2010 |
| 20100045209 | Lighting System for a Stroller - A lighting system for a stroller includes: a power generation system coupled to at least one wheel of the stroller; a power source operationally coupled to the power generation system and configured to receive and store power generated by the power generation system; at least one first light source coupled to at least one leg of the stroller and configured to be powered by the power source; and at least one second light source coupled to a central hub of the stroller and configured to be powered by the power source. The at least one first light source is controlled to provide constant lighting for safety purposes and the at least one second light source is controlled to provide light to a pathway in a low light condition. | 02-25-2010 |
| 20100052568 | Light emitting diode array driver - A device and method for controlling current output to current driven loads such as active light emitting diodes (LEDs) and, more particularly, a device and method for controlling current to an array of active LED strings that are disposed in series. The device generates a square wave AC current that flows through primary windings of plural isolation transformers whose primary windings are electrically connected in series. The device includes a current regulator that produces a regulated DC current that is proportional to a current reference; a free running inverter that converts the DC current to square wave AC current; and plural isolation transformers whose secondary windings are electrically connected to LED strings. | 03-04-2010 |
| 20100052569 | ELECTRONIC DEVICE FOR DRIVING LIGHT EMITTING DIODES - The present invention relates to an electronic device for driving a light emitting diode, which includes a switch (Ts) being adapted to switch a switch-mode power converter, and controlling means (CNTL) being adapted for controlling the switch (Ts) in response to a sensing value (Vs) indicative of a current of the switch-mode power converter and for controlling by the switch (Ts) the output voltage of the switched power converter and a current (Iout) through the light emitting diode. | 03-04-2010 |
| 20100052570 | Exposure Head, Image Forming Apparatus, and Control Method of Exposure Head - An exposure head includes: at least one light emitting element; an imaging optical system adapted to image light from the light emitting element; at least one reference element disposed to the light emitting element; and a control section adapted to control light emission of the light emitting element, and to put off the reference element in a latent image forming operation, wherein the control section obtains degree of deterioration of the light emitting element based on an intensity of light emitted by the light emitting element at timing other than timing when the latent image formation operation is executed and an intensity of light emitted by the reference element at the timing other than the timing when the latent image formation operation is executed, and controls light intensity of the light emitting element in the latent image forming operation based on the degree of deterioration. | 03-04-2010 |
| 20100060194 | EXTERNAL MICROCONTROLLER FOR LED LIGHTING FIXTURE, LED LIGHTING FIXTURE WITH INTERNAL CONTROLLER, AND LED LIGHTING SYSTEM - An LED lighting system ( | 03-11-2010 |
| 20100060195 | LIGHT SOURCE AND LIGHT IRRADIATING DEVICE - A light source and a light irradiating device are provided to efficiently regulate a biological rhythm of a user without changing a color temperature of illumination light, an average color-matching index (Ra) or both. The light irradiating device is comprised of a blue emitter ( | 03-11-2010 |
| 20100060196 | DEVICE FOR PROTECTING AGAINST PARASITES - The invention relates to a device for protecting against pests, especially in piping systems conveying water, utility lines, and/or ambient air, for example within the water delivery system and/or sewer system of buildings. Said invention enables the inside of a piping system to be illuminated in an energy-saving manner, such that any pests that are normally averse to light will recoil from the light source. | 03-11-2010 |
| 20100060197 | Inspection Lamp with Interchangeable LED Light Source Module - An inspection lamp includes a housing with an external opening providing access to a socket having an electrical contact, an interchangeable light source module including a tab adapted to be inserted into the opening and received into the socket, the tab including a mating electrical contact for making an electrical connection with the electrical contact of the socket, the light source module including at least one light emitting diode, and a switch for controlling the light emitted by the light source module. | 03-11-2010 |
| 20100066267 | REMOTELY CONTROLLABLE TRACK LIGHTING SYSTEM - A remotely controllable track lighting system includes a track mountable to a support structure, such as a wall or ceiling, with lamps that are supported on the track that are individually controlled by a wireless remote. Each lamp on the track may be set to respectively different intensity levels (e.g., high, mid, low, off) or the user can uniformly control the lamps to be set to the same intensity level. Advantageously, all of the lamps may be set, upon initially turning on the lamps or at another time as desired, to their respective previously set intensity levels. The track system may also be powered via a wall switch where initially turning on the lamps via the wall switch advantageously causes all of the lamps to return to their respective previously set intensity levels or the user can move the wall switch off then on within a short period of time (e.g., 3 seconds) to cause all of the lamps to be set high. Other features and variations also are provided. | 03-18-2010 |
| 20100066268 | LED Light Source Module and Constant-Current Unit Structure for Use Therewith - An LED light source module and a constant-current unit structure for use therewith are provided. The LED light source module includes a constant-current unit and an LED set. The constant-current unit includes a voltage stabilizing unit and a resistor. The resistor is parallel-connected between two output ends of the voltage stabilizing unit. An input end of the constant-current unit receives DC voltage, and one of the output ends of the constant-current unit outputs constant current. The LED set is electrically connected to the output end of the constant-current unit to receive constant current therefrom so as for the LED set to be powered-on. Regardless of fluctuation in the DC voltage received, the constant-current unit outputs stable constant current, and the LED set emits light steadily, thereby protecting the LED set against overcurrent-induced damage. | 03-18-2010 |
| 20100066269 | LIGHTING DEVICE - The invention provides a lighting device which is color-variable without a substantial deviation from the black body locus of the light generated by the lighting device. The lighting device is also dimmable without a substantial shift of the color point of the light generated by the lighting device. The lighting device is based on at least two CDM lamps. | 03-18-2010 |
| 20100072918 | Circuit Arrangement and Method for Operating at Least One First and a Second Lamp - A circuit arrangement for operating at least one first and second lamp each provided with a first and second coil electrode includes a first and second terminal for the first coil electrode of the first lamp, a first and second terminal for the second coil electrode of the first lamp, a first and second terminal for the first coil electrode of the second lamp, a first and second terminal for the second coil electrode of the second lamp, at least one supply connection for supplying voltage to the respective first coil electrode of the at least one first and second lamp, and at least one preheating device for the respective first coil electrode of the at least one first and second lamp. The second terminal of the first coil electrode of the first lamp is coupled to the second terminal of the first coil electrode of the second lamp while the preheating device encompasses a first preheating inductor and a second preheating inductor. | 03-25-2010 |
| 20100072919 | LED LAMP WITH HIGH EFFICACY AND HIGH COLOR RENDERING AND MANUFACTURING METHOD THEREOF - A LED lamp and a manufacturing method thereof are disclosed. At least one blue LED chip can be used as an excitation light source. A number of red LED chips are arranged around the blue LED chip. The blue LED chip and red chips are covered with a packaging material with phosphor. The intensity of red light can be adjusted by a control circuit. Thus, the white LED lamps with high efficacy and high color rendering at different color temperatures can be achieved. | 03-25-2010 |
| 20100079084 | DEVICE FOR SETTING LUMINOSITY OF LIGHT-EMITTING DIODES - The invention concerns a circuit for setting all types of LED'S ( | 04-01-2010 |
| 20100079085 | SUPPLY CIRCUIT - In supply circuits ( | 04-01-2010 |
| 20100079086 | HIGH-POWER LED DRIVING CIRCUIT - A high-power light-emitting diode (LED) driving circuit relates to a photoelectric technology field. An anode of D | 04-01-2010 |
| 20100079087 | LIGHTING APPARATUS - The present invention comprises a lighting apparatus main body having a reflecting surface, a main light source arranged in the reflecting surface of the lighting apparatus main body, a sub-light source which is arranged at the lighting apparatus main body and illuminates the neighborhood of the main light source directly, and a control circuit which controls the main light source and the sub-light source. | 04-01-2010 |
| 20100084993 | Type of LED light - An LED bulb includes at least one group of LED string ( | 04-08-2010 |
| 20100102752 | CONTROL CIRCUIT AND METHOD FOR BACKLIGHT SOURCES, AND IMAGE DISPLAY APPARATUS AND LIGHTING APPARATUS USING THE SAME - In light emitting diode (LED) control, a plurality of duty cycle signals corresponding to a plurality of LEDs are stored in a dual-port memory by memory mapping. By sampling, the stored duty cycle signals are outputted to generate a plurality of parallel single-bit data each having one single bit. After the single-bit data are converted by a data transmission module, each bit of the single-bit data is serially outputted to a drive module to drive the LEDs. Thus, the ON duty cycles of the LEDs are modulated by pulse width modulation (PWM), light emitted from the LEDs are mixed in time-domain, and the brightness of the LEDs can be controlled. | 04-29-2010 |
| 20100109556 | Solar Powered Underwater Multipurpose Illumination Device - An illumination device includes a housing and a lens disposed at the end of the housing. The lens is in watertight engagement with the housing and includes at least one LED disposed in the housing and for transmitting light through the lens. An infrared sensor is operatively connected to the electronic control unit for remotely operating the electronic control unit. The illumination device also includes a mounting disk and bracket for mounting to underwater surfaces, such as a pool, or a magnet for the same. An electronic driver unit regulates power to the LED module, thereby saving battery power. | 05-06-2010 |
| 20100109557 | Floating Switch Controlling LED Array Segment - A control circuit used in a lamp system. The lamp system has a first and a second light emitting diode (LED) connected together in series. The control circuit includes a current source for connecting to the first LED to provide a regulated drive current to the first and second LEDs in order to illuminate the LEDs. The control circuit includes a switching component for connecting in parallel with the first LED to divert the driver current from the first LED and provide the driver current to the second LED when the switching component is activated. The control circuit includes a controller for selectively activating the switching component in order to selectively extinguish the first LED. | 05-06-2010 |
| 20100109558 | AC to DC LED illumination devices, systems and methods - Illumination devices ( | 05-06-2010 |
| 20100109559 | METHOD AND CIRCUIT OF CONTROLLING AN LED CHARGE PUMP DRIVING CIRCUIT - An LED charge pump driving circuit includes a charge pump, a control circuit, a driver, and an LED. The charge pump generates an output voltage according to an input voltage. The driver drives the LED according to the output voltage so as to generate a load voltage. When the load voltage is greater than a first predetermined voltage, the charge pump is turned on. When the load voltage is smaller than a second predetermined voltage over a predetermined duration, the charge pump is turned off. When the load voltage is greater than a third predetermined voltage, the driver is locked. | 05-06-2010 |
| 20100109560 | Capacitive Full-Wave Circuit for LED Light Strings - A capacitive full-wave circuit for LED light strings makes use of capacitors and diodes together to drive a LED string with full AC waves. Different from the conventional four-diode full-wave rectifying circuit, one embodiment of capacitive full-wave circuit includes two capacitors and two diodes. Because of the large imaginary impedance, the capacitors not only limit and the voltage and current through the LEDs, but also consume almost no electrical power. The electrical current-voltage performance can be further improved by introducing four resistors with a cost of some additional power consumption. A LED light string module with the capacitive full-wave circuit is also presented, with the capacitive full-wave circuit integrated inside of a front power plug and a back power socket. | 05-06-2010 |
| 20100109561 | POWER SUPPLY APPARATUS - A power supply apparatus includes an open loop power switcher, a power isolation transformer, a backlight driving circuit, and a power circuit. The open loop power switcher converts a direct current (DC) power into an alternating current (AC) input voltage. The power isolation transformer is coupled to the open loop power switcher and includes a primary-side winding, a first winding, and a second winding, wherein the first and second windings are disposed at the secondary-side of the power isolation transformer, and the first winding is employed for generating a first voltage signal according to the AC input voltage. The backlight driving circuit is employed for driving a backlight module according to the first voltage signal. The power circuit is employed for receiving a second voltage signal generated from the second winding according to the AC input voltage, in order to generate an output power signal. | 05-06-2010 |
| 20100109562 | BACKLIGHT MODULE AND LIGHT-EMITTING DEVICE THEREOF - A light emitting device of the backlight module comprises a carrier, an electrical contact, a light emitting diode (LED) driving circuit, and a plurality of LEDs. The carrier comprises a surface, and the electrical contact is electrically connected to a voltage source for providing a voltage potential substantially equal to that of the voltage source. The LED driving circuit comprises at least one driving component electrically connected to the electrical contact, and the plurality of LEDs electrically connected between the electrical contact and the LED driving circuit. The electrical contact, the LED driving circuit, and the plurality of LEDs are all positioned on the surface of the carrier. | 05-06-2010 |
| 20100109563 | APPARATUS FOR DRIVING MULTI-LIGHT EMITTING DEVICES - An apparatus for driving multi-light emitting devices that drives a multi-channel light emitting unit having a plurality of light emitting channels connected in parallel with each other, each of which has a plurality of light emitting devices connected in series with each other according to an aspect of the invention may include: a DC/DC converter generating a driving voltage; a current control unit having a plurality of current sources connected between cathodes of the plurality of light emitting channels and a ground; a minimum voltage selection unit detecting a minimum detection voltage among the plurality of detected voltages at the cathodes of the plurality of light emitting channels; a first error detection unit detecting an error voltage determined by the difference between the minimum detection voltage and a predetermined first reference voltage; and a feedback coupling unit supplying the input voltage according to the error voltage and the driving voltage. | 05-06-2010 |
| 20100109564 | ADJUSTABLE COLOR ILLUMINATION SOURCE - An adjustable adjustable color illumination source comprises: a first color channel including at least first and second sub-channels independently selectively switchable on or off to generate illumination of a first color with at least three different selectable intensity levels not including zero intensity; a second color channel including at least first and second sub-channels independently selectively switchable on or off to generate illumination of a second color with at least three different selectable intensity levels not including zero intensity; a third color channel including at least first and second sub-channels independently selectively switchable on or off to generate illumination of a third color with at least three different selectable intensity levels not including zero intensity; the first, second, and third color channels arranged such that the illumination of the first, second, and third colors combine to generate a source illumination; and a controller communicating with the first, second, and third color channels to selectively switch on or off the sub-channels of the first, second, and third color channels to adjust the source illumination to a selected one of at least sixty four different colors. light source comprises a light source having input channels for generating illumination of different channel colors, and an electrical power supply selectively energizing the input channels in a time division multiplexed fashion to generate a illumination of a selected color. | 05-06-2010 |
| 20100109565 | APPARATUS AND METHODS FOR REDUCING THE POWER CONSUMPTION OF FLUORESCENT LIGHTS - Systems for reducing the power consumption of fluorescent lights are provided. The systems can be used in new construction as well as retrofitted into existing buildings employing overdriven fluorescent lights without significantly affecting the operation of utility power lines. In preferred embodiments, the systems provide substantially constant light output during start-up and low voltage conditions. | 05-06-2010 |
| 20100109566 | Control Circuit for Light Emitting Diode and Light Emitting Device Having the Same - Disclosed are a control circuit for a light emitting diode and a light emitting device having the same. The control circuit for the light emitting diode comprises a red LED, a green LED and a blue LED, a driver which outputs a first control signal and a second control signal based on a 2-bit combination and a driving circuit which sequentially turns on/off the LEDs according to a state of the first control signal and the second control signal that are output from the driver. | 05-06-2010 |
| 20100109567 | TILED LIGHTING DEVICE - The present invention relates to a lighting device ( | 05-06-2010 |
| 20100109568 | COMMON OPTICAL ELEMENT FOR AN ARRAY OF PHOSPHOR CONVERTED LLIGHT EMITTING DEVICES - A device is provided with an array of a plurality of phosphor converted light emitting devices (LEDs) that produce broad spectrum light. The phosphor converted LEDs may produce light with different correlated color temperature (CCT) and are covered with an optical element that assists in mixing the light from the LEDs to produce a desired correlated color temperature. The optical element may be bonded to the phosphor converted light emitting devices. The optical element may be a dome mounted over the phosphor converted light emitting devices and filled with an encapsulant. | 05-06-2010 |
| 20100109569 | TRANSFORMER WITH ADJUSTABLE LEAKAGE INDUCTANCE AND DRIVING DEVICE USING THE SAME - A transformer with adjustable leakage inductance includes a first bobbin, a first winding, and a second winding. The first bobbin includes a first region and a second region. The second winding includes a first coil portion and a second coil portion. One of the first winding and the first coil portion of the second winding is wound around the first region of the first bobbin, and the other of the first winding and the first coil portion of the second winding is wound outside of the one wound around the first region of the first bobbin. The second coil portion of the second winding is wound around the second region of the first bobbin. | 05-06-2010 |
| 20100117557 | LIGHT-EMITTING DEVICE, LIGHT-EMITTING ELEMENT CHIP AND LIGHT EMISSION ADJUSTING METHOD - The light-emitting device includes: a setting unit switching a potential difference between anode and cathode electrodes alternately between first and second potential differences so that light-emitting thyristors are caused to have one of the first and second potential differences in common; a specifying unit sequentially specifying, as a target for controlling, one light-emitting thyristor; a supply unit alternately supplying transition voltage for causing specified light-emitting thyristor to transition from the off state to the on state and maintaining voltage for keeping the thyristor being in the off state to a gate electrode of the thyristor, in a light-emission control period during which the specifying unit specifies the target and the setting unit sets the second potential difference; and an adjusting unit that adjusts a light-emitting period of the one light-emitting thyristor by supplying the maintaining voltage and stopping supplying the voltage at a variable timing, in the light-emission control period. | 05-13-2010 |
| 20100117558 | Illumination Apparatus and Driving Method Thereof - Embodiments provide an illumination apparatus including: an adapter that converts alternating power into driving power; and a light emitting device that is detachably and electrically connected to the adapter and that emits light according to the driving power provided from the adapter. | 05-13-2010 |
| 20100117559 | Illumination Apparatus and Driving Method Thereof - An illumination apparatus includes an adapter that converts power into driving power; a light emitting device illumination part that is detachably and electrically connected to the adapter to emit light according to the driving power from the adapter; and a driving unit that controls an illumination direction of the light emitting device. | 05-13-2010 |
| 20100117560 | Pixilated LED Light Source for Channel Letter Illumination - The present invention is an LED module for channel letter illumination utilizing multiple through-hole LEDs in a pixel formation as a light source where one surface mounted LED or other forms of LEDs were previously used. The use of a number of small through-hole LEDs ideally requires that a beam angle between and including 15° and 180° in vertical and horizontal directions, respectively, be utilized. When multiple light sources are used on a module, the distance between light sources is to be between 20 mm and 1 cm. The use of several smaller LEDs reduces the current needed to generate light of appropriate intensity and, thus reduces energy cost and heat generation. The use of smaller LEDs also assists in excess heat dissipation. | 05-13-2010 |
| 20100117561 | DEDICATED LED AIRFIELD SYSTEM ARCHITECTURES - A system and method that contemplates operating an LED at its characterized current (e.g. 400 mA) for any luminous intensity. A Direct Current Pulse Width Modulation (PWM) signal is employed, wherein the pulse width of the pulse width modulated signal is used to control the luminous intensity of the LED. Optionally, the LED can be biased to reduce the intensity of the pulses used to operate the LED. | 05-13-2010 |
| 20100127636 | Illuminating ribbon - An illuminating ribbon has a decoration ribbon and a flexible circuit board with light-emitting devices. The decoration ribbon has two long sides, in which one of the two long sides has a sewing line. The flexible circuit board with light-emitting devices is disposed on the decoration ribbon and fixed to one long side of the decoration ribbon via the sewing line. The flexible circuit board with light-emitting devices includes an insulator with flexible flat surface; first and second electrical wires; N light-emitting devices; and a power device. The first and second electrical wires are embedded in parallel into the insulator with flexible flat surface. The N light-emitting devices are connected to the first and second electrical wires. The power device is connected to the first and second electrical wires to supply power to the N light-emitting devices and thus to generate light on the decoration ribbon. | 05-27-2010 |
| 20100127637 | REMOVABLE LED LIGHT ASSEMBLY FOR USE IN A LIGHT FIXTURE ASSEMBLY - A removable LED light assembly for use in a light fixture assembly includes an LED lighting element and one or more resilient members to maintain a compression force between the LED light assembly and a housing to provide effective heat transfer from the LED to the housing. The LED light assembly includes a plurality of electrical contact members to facilitate installation of the LED light assembly in the housing. | 05-27-2010 |
| 20100127638 | LIGHT SOURCE CONTROL DEVICE AND METHOD - A light source control method and a light source control device are used for controlling a light source. The light source control device includes a position detecting sensor and a microcontroller. The light source control method includes steps of generating a first signal according to an object touching a position of the position detecting sensor, and generating a control signal according to a light source adjustable parameter set corresponding to the first signal for controlling an illuminating status of the light source. The light source adjustable parameter set includes a plurality of color value components. The control signal is generated by the microcontroller according to the color value components. | 05-27-2010 |
| 20100127639 | LED ILLUMINATION MODULE - The present invention relates to an LED illumination module. The LED illumination module comprises an upper housing configured to have an accommodation unit upwardly protruding at a central portion of the upper housing and to have two or more LEDs mounted in an outer circumference direction of the accommodation unit, a lower housing disposed below the upper housing, a power supply device embedded in the accommodation unit formed in the upper housing and configured to supply a power source to the LEDs, and power source cables placed on sides of the upper housing and the lower housing and configured to supply an external power source to the power supply device. | 05-27-2010 |
| 20100134040 | LED DRIVER WITH PRECHARGE AND TRACK/HOLD - A power source provides an output voltage to drive a plurality of light emitting diode (LED) strings. A feedback controller monitors the tail voltages of the LED strings to identify the minimum tail voltage and adjusts the output voltage based on a relationship between the minimum tail voltage and a reference voltage. The feedback controller implements precharging of the output voltage, including one or both of short-term precharging or long-term precharging. Further, the feedback controller incorporates a track/hold circuit that tracks the minimum tail voltage while the LED strings are active and holds the minimum tail voltage at the last tracked minimum tail voltage while the LED strings are inactive and uses the held minimum tail voltage for controlling the output voltage while the LED strings are inactive so as to permit the power source to supply an appropriate output voltage when the LED strings are subsequently activated again. | 06-03-2010 |
| 20100134041 | LED STRING DRIVER WITH SHIFT REGISTER AND LEVEL SHIFTER - The present invention relates to a device for individually driving OLED/LED elements of an OLED/LED string, comprising for each OLED/LED element of the string: a controllable shunting switch ( | 06-03-2010 |
| 20100134042 | SYSTEM FOR CONTROLLING LIGHT SOURCES - A lighting control system ( | 06-03-2010 |
| 20100134043 | LIGHTING DEVICE - In a lighting device, a first LED is formed by sealing a blue LED element by a first resin, the first resin having a first phosphor included in the first resin so as to raise a correlation color temperature of an emitted light color; and a second LED is formed by sealing a blue LED element by a second resin, the second resin having a second phosphor included in the second resin so as to lower a correlation color temperature of an emitted light color. The lighting device emits light from white light of a color having a first correlation color temperature to white light of a color having a second correlation color temperature, and the first correlation color temperature is higher than the second correlation color temperature. Consequently, various tones of white light can be more easily adjusted and controlled over a long period. | 06-03-2010 |
| 20100134044 | BALLAST FOR MULTIPLE LAMPS AND METHOD OF MANUFACTURING THE SAME - Disclosed herein is a ballast for multiple lamps and a method of manufacturing the ballast. A first coil is wound around a bobbin which has a partition formed in the center portion of an inner space thereof. An insulating sheet is stacked on the first coil, and a second coil is wound around the insulating sheet. Two paired core elements are vertically coupled to each other to form each core. Ends of the core elements disposed outside the bobbin are connected, and ends of the core elements disposed inside the bobbin are spaced apart from each other by the thickness of the bobbin partition, to form a path for magnetic flux. | 06-03-2010 |
| 20100141172 | Light Source, Solid State Light Emitting Element Module, Fluorescent Module, Light Orientation Element Module, Illumination Device, Image Display Device, and Light Source Adjustment Method - An object of the present invention is to make possible irradiating a desired irradiated surface with a homogenized-colored light having high color rendering, with high luminous efficiency. To achieve the object, the present invention provides a light source comprising two or more primary light sources, each of which emits primary light having different wavelength, wherein the maximum value among differences between each of CIE chromaticity coordinates of the primary lights is 0.05 or larger, the primary lights have the same illuminance distribution characteristics at a desired irradiated surface, the luminous efficiency is 30 lm/W or larger, and the general color rendering index is 60 or larger. | 06-10-2010 |
| 20100141173 | LINEARITY IN LED DIMMER CONTROL - A flyback controller may generate a switching signal for controlling the delivery of input current into a primary winding of a transformer in a flyback converter that has a secondary winding in the transformer and that is driven by AC output from a dimmer control that is chopped at a phase angle based on a setting of the dimmer control. The flyback controller may include a tracking input configured to receive a dimmer output tracking signal that is representative of the instantaneous magnitude of the output from the dimmer control. The flyback controller may include an averaging circuit configured to average the dimmer output tracking signal so as to generate an average dimmer output signal that is representative of a time-averaged value of the dimmer output tracking signal. The flyback controller may be configured to cause the average output current in the secondary winding of the transformer to vary as a function of the average dimmer output signal when the phase angle exceeds a threshold. The flyback controller may be configured to generate the switching signal with a duty cycle that causes the luminance level of light produced by one or more LEDs to vary when the phase angle exceeds a threshold by what appears to the human eye to be a more linear function of the phase angle than if the luminance level actually varied as a linear function of the phase angle. | 06-10-2010 |
| 20100141174 | CURRENT RIPPLE REDUCTION CIRCUIT FOR LEDS - A powered LED circuit may include a power supply configured to generate and deliver an output current at a controllable average value with a substantial ripple component, one or more LEDs connected together, and a ripple reduction circuit connected to the power supply and to the one or more LEDs. The ripple reduction circuit may have a current regulator connected in series with the one or more LEDs which is configured to substantially reduce fluctuations in the current which flows through the one or more LEDs due to the ripple component of the output current, but not fluctuations in the current which flows through the one or more LEDs due to changes in the average value of the output current. | 06-10-2010 |
| 20100141175 | Light Sources Utilizing Segmented LEDs to Compensate for Manufacturing Variations in the Light Output of Individual Segmented LEDs - A light source and method for making the same are disclosed. The light source includes a plurality of Segmented LEDs connected in parallel to a power bus and a controller. The power bus accepts a variable number of Segmented LEDs. The controller receives AC power and provides a power signal on the power bus. Each Segmented LED is characterized by a driving voltage that is greater than 3 times the driving voltage of a conventional LED fabricated in the same material system as the Segmented LED. The number of Segmented LEDs in the light source is chosen to compensate for variations in the light output of individual Segmented LEDs introduced by the manufacturing process. In another aspect of the invention, the number of Segmented LEDs connected to the power bus can be altered after the light source is assembled. | 06-10-2010 |
| 20100141176 | LIGHT EMITTING DIODE DISPLAY DEVICE AND PORTABLE TERMINAL DEVICE - A light emitting diode display in which the light emitted from each LED is not mixed easily when two LEDs arranged closely are lighted. An LED ( | 06-10-2010 |
| 20100148694 | LED light string with capacitor based rectifier filter for increasing output voltage - A string of LED light is provided. The string of LED light has a full-wave rectifier with a capacitor based filter for increasing output voltage to the range of 2.6 to 2.84 times as compared with the output voltage of a typical full-wave rectifier without filter so that an increased number of lamps each having an LED and a Zener diode in parallel therewith can be attached to the string of LED light. | 06-17-2010 |
| 20100148695 | DISPLAY SCREEN WINDOW ASSEMBLY - A display screen window assembly includes a display screen window and a photo catalyst layer. The display screen window has an outer surface. The photo catalyst layer is disposed on the outer surface of the display screen window, thus the outer surface of the display window assembly has hydrophilic and decomposing functions. The photo catalyst layer may set off chemical reaction with the water molecule and oxygen molecule under emission of light to prevent the water and foreign materials from forming on or sticking to the outer surface of the display screen window. | 06-17-2010 |
| 20100148696 | METHOD FOR CONTROLLING THE EMISSION BEHAVIOR OF LUMINAIRES IN AN ARRANGEMENT OF A PLURALITY OF LUMINAIRES, AND AN ARRANGEMENT OF A PLURALITY OF LUMINAIRES - A method for controlling the emission behavior of luminaires in an arrangement of a plurality of luminaires is provided. The method may include using a first luminaire of the plurality of luminaires to define the desired emission behavior at least of itself and at least of one further luminaire; emitting light by means of the first luminaire, to which signals are applied that transmit at least one information item relating to the desired emission behavior; and receiving the light by means of at least one second luminaire, reading out the at least one information item, and emitting light in accordance with the at least one information item. | 06-17-2010 |
| 20100148697 | Microprocessor-Controlled Multifunction Light With Intrinsically Safe Energy Limiting - An intrinsically safe energy limited circuit for space-restricted applications includes a fuse and resistor in series with a protected circuit or component wherein the fuse dissipates most of the power when the protected circuit or component is short circuited. | 06-17-2010 |
| 20100156314 | Light source driver circuit - A light source driver circuit includes a voltage input terminal, a light source module, a transformer module, a voltage regulator module, a first switch and a control module. The voltage input terminal receives an input voltage. The light source module includes a plurality of light-emitting units. The transformer module is electrically connected to the light-emitting units. The voltage regulator module connected to the voltage input terminal provides a stable output voltage. The first switch electrically connected to the transformer module and the voltage regulator module receives the stable output voltage to determine whether the first switch is to be turned on or off. The control module is electrically connected to the first switch. The control module and the first switch are controlled so that the light source module the input voltage can be drived by the input voltage. | 06-24-2010 |
| 20100156315 | LED DRIVER WITH FEEDBACK CALIBRATION - Power management in a light emitting diode (LED) system having a plurality of LED strings is disclosed. A voltage source provides an output voltage to drive a plurality of LED strings. An LED driver implements a feedback mechanism to monitor the tail voltages of the active LED strings to identify the minimum tail voltage and adjust the output voltage of the voltage source based on the lowest tail voltage. A loop calibration module of the LED driver calibrates the feedback mechanism of the LED driver based on a relationship between a digital code value used to generate a particular output voltage and another digital code value generated based on the minimum tail voltage resulting from the particular output voltage. | 06-24-2010 |
| 20100156316 | LIGHT SOURCE APPARATUS AND DRIVING CIRCUIT THEREOF - A light source apparatus and a light source driving circuit are provided. The light source driving circuit includes an operation amplifier (OP-AMP), a transistor, and a switch unit. A first input terminal and an output terminal of the OP-AMP couple to a predetermined voltage and a control terminal of the transistor, respectively. A first terminal of the transistor couples to a light source. The switch unit includes a first signal terminal receiving a first voltage greater than a predetermined voltage, a second signal terminal coupled to a second input terminal of the OP-AMP, a third signal terminal coupled to a second terminal of the transistor, and an enabling terminal receiving a driving voltage. A voltage of the third signal terminal or a voltage of the first signal terminal is determined to transmit to the second signal terminal in accordance with the driving voltage. | 06-24-2010 |
| 20100156317 | LIGHT-EMITTING ELEMENT DRIVING CIRCUIT - A light-emitting element driving circuit includes a PWM signal output circuit configured to output a plurality of PWM signals each having one logic level whose duty ratio corresponds to gradation data and each corresponding to each of a plurality of light-emitting elements, on the basis of the gradation data indicating brightness of each of the plurality of light-emitting elements. A driving signal output circuit is configured to change the duty ratio of each of the plurality of inputted PWM signals to output the plurality of changed PWM signals as a plurality of driving signals, on the basis of instruction data for changing the brightness of the plurality of light-emitting elements. A driving circuit is configured to drive the plurality of light-emitting elements on the basis of a duty ratio of each of the plurality of driving signals. | 06-24-2010 |
| 20100156318 | Light Source System For Use With Medical Devices - A light source system adapted to embrace the head of the scope of a C-Arm Fluoroscopic machine. The light source system comprises of a cylindrical hollow frame having an outer surface and an inner surface defining an aperture for passage of the head of a scope of a C-Arm Fluoroscopic machine. Retained within the frame is a plurality of light emitting sources which are electrically connected to a power source. The frame consists of two semi-circular portions that are releasably connected by a fastening means for attachment to the head of a scope of a C-Arm Fluoroscopic machine. The light source system further includes a sterile hollow drape connected to the upper face of the frame. The sterile hollow drape is adapted to cover the C-Arm Fluoroscopic machine. The light source system also further includes a transparent grid sheet attached to the lower face of the frame whereby the plurality of light sources reflect a grid pattern projected form the transparent grid sheet. | 06-24-2010 |
| 20100164399 | SWITCHED LIGHT ELEMENT ARRAY AND METHOD OF OPERATION - A switched light element array includes first, second and third light emitting elements, and first and second switches. The first light emitting element includes first and second terminals, and the second light emitting element includes a first terminal, and a second terminal coupled to the second terminal of the first light emitting element. The third light emitting element includes a first terminal coupled to the first terminal of the first light emitting element and a second terminal. The first switch includes a first terminal coupled to each of the first terminals of the first and third light emitting elements and a second terminal coupled to the first terminal of the second light emitting element. The second switch includes a first terminal coupled to the second terminal of the third light emitting element, and a second terminal coupled to each of the second terminals of the first and second light emitting elements. | 07-01-2010 |
| 20100164400 | SWITCHING POWER SUPPLY SYSTEM FOR OPTICAL SOURCES OR A LOAD REQUIRING A CONTROLLED SUPPLY CURRENT - A switching power supply for supplying a load requiring a controlled current includes a PFC pre-regulator for receiving an input voltage and providing an output voltage, and a DC-DC switching converter for receiving at input the voltage output by the pre-regulator and for providing at output a supply voltage of said load. The switching DC-DC converter operates at a fixed and constant operating frequency, is a resonant converter and includes an LLC resonant circuit. | 07-01-2010 |
| 20100164401 | LIGHTING DEVICE WITH SWITCHABLE LIGHT SOURCES - Various lighting device implementations and related methods may be used to selectively provide various types of light in response to user-actuated controls. In one example, a lighting device includes a plurality of light sources, a body, a head, and one or more controls adapted to adjust operation of the light sources. The body includes a housing. The head includes a bezel adapted to rotate relative to the body to select between at least a first one of the light sources and a second one of the light sources. The head also includes a lens adapted to rotate eccentrically relative to a centerline of the head in response to rotation of the bezel. The lens includes a light inlet adapted to be selectively positioned over the first light source, the second light source, or neither of the light sources as the lens rotates eccentrically relative to the centerline of the head. | 07-01-2010 |
| 20100171440 | ILLUMINATING DEVICE - An illuminating device has a solid light-emitting element module ( | 07-08-2010 |
| 20100171441 | LIGHTING SYSTEM FOR CREATING A BIOLOGICAL EFFECT - A lighting system for creating a biological effect induced by light. The biological effect is a different effect than vision. The lighting system comprises a light source ( | 07-08-2010 |
| 20100176742 | Illumination Apparatus and Driving Method Thereof - An illumination apparatus according to the embodiment includes: an adapter that is detachably and electrically connected to an illumination apparatus (lamp)_socket; a power supply unit that is installed in the adapter to supply power; a light emitting device driver that is installed in the adapter and generates driving power from power supplied by the power supply unit; a light emitting device illumination unit including a plurality of light emitting devices that are connected to the adapter and are driven by receiving driving power from the light emitting device driver; a lamp information generator that is installed in the light emitting device illumination unit; and a controller that controls the light emitting device driver according to the lamp information of the lamp information generator. | 07-15-2010 |
| 20100176743 | Illumination Apparatus - An illumination apparatus includes an adapter that is detachably and electrically connected a fluorescent lamp socket; a power supply unit in the adapter to supply power; a light emitting device driver that generates driving power from the power supplied by the power supply unit; a controller that controls the light emitting device driver; and a light emitting device illumination unit that emits light according to the driving power from the light emitting device driver and that is electrically connects the power supply unit to another fluorescent lamp socket. | 07-15-2010 |
| 20100176744 | Illumination Apparatus and Driving Method Thereof - An illumination apparatus includes an adaptor that is detachably and electrically connectable to a socket of the illumination apparatus; a power supply unit at the adapter and that supplies power; a light emitting device driver that receives power from the power supply unit and that generates driving power; a controller that controls the light emitting device driver; an interface that communicates with the controller; and a light emitting device illumination comprising a plurality of light emitting devices that emit light according to the driving power from the light emitting device driver. | 07-15-2010 |
| 20100176745 | LIGHT SOURCE DRIVING APPARATUS - A light source driving apparatus for sequentially driving a plurality or light sources is provided. The light source driving apparatus includes a light source power supply for supplying a power source necessary for driving the plurality of light sources, a light source controller for generating a control signal to sequentially turn on and off the plurality of light sources, a soft starter connected between the light source power supply and the light sources, for delaying the power source generated from the light source power supply for a first determined time and supplying the delayed power source to the light sources, and a control signal delayer connected between the light source controller and the light sources, for delaying an ON signal of the control signal generated from the light source controller for a second predetermined time and supplying the delayed signal to the light sources. | 07-15-2010 |
| 20100188015 | METHOD AND APPARATUS FOR CONTROLLING AND MODULATING LED CURRENT - An apparatus to power and dim LEDs is provided. The apparatus generally comprises a boost converter having an output node, a regulator node, a sensing network, and an impedance network. LEDs, which are coupled in series with one another, are coupled between the output node and the impedance network of the boost converter. A zener diode is coupled to the output node and coupled to the sensing network, and a dimming circuit is coupled to the boost converter. The dimming circuit includes a diode coupled to the impedance network, a switch coupled between the diodes and ground (which receives the signal for dimming the plurality of LEDs), and a network coupled to the regulator node and to the node between the second diode and the second switch. | 07-29-2010 |
| 20100188016 | Discharge Lamp Driving Apparatus - A discharge lamp driving apparatus composed of a DC power supply, a square wave change-over device, a square wave controller, a plurality of discharge lamps, a plurality of operating transformers, and a plurality of correlatively connected transformers. The operating transformers and correlatively connected transformers are disposed at two sides of the lamps. Both kinds of transformers may connect either their primary sides or secondary sides in series and then connect to the square wave change-over device. The transformers so connected are capable of effectively controlling their output power, minimizing their size and reducing temperature so as to improve their overall efficiency. | 07-29-2010 |
| 20100188017 | LIGHT EMITTING DIODE LINEAR LIGHT FOR MACHINE VISION - The invention herein comprises a linear lighting system which incorporates light emitting diode (LED) light sources with one or more distinct colors including broad band white light. The LED die or die arrays are mounted to a high thermal conductivity circuit board comprising COB technology which can include both the LED die and electronic drive components resulting in a more compact and reliable design with improved thermal and optical performance at lower cost. In conjunction with high efficiency imaging collection optics and aberration corrected cylindrical optics, the output of the LED sources are imaged to a bright line suitable for use in machine vision applications and the like. | 07-29-2010 |
| 20100188018 | SPOTLIGHT AND METHOD OF LIGHTING UP AN OBJECT - Embodiments show a spotlight comprising light emitting diode modules wherein each LED module comprises at least two light emitting diodes with different light emission spectra and a light mixer, wherein each light mixer is arranged at one side of the light mixer in cooperation with an assigned LED module and each light mixer is configured to mix the different light emission spectra of the at least two LEDs of the assigned LED module to form a light beam, and wherein exit surfaces at the other side of the light mixers are arranged next to each other in a matrix with its light beams of the light mixers form a common light beam and a focusing optics for focusing the common light beam. | 07-29-2010 |
| 20100188019 | Three Color Digital Gobo System - A system of digitally controlling light output by producing separate control signals for different colors of light. The light is contained in an optical waveguide, either prior to shaping or after shaping. Each of the control signals is coupled to a digitally controlled device which controls the shape of the light output. The digital controlling device can be digital mirror devices, for example. | 07-29-2010 |
| 20100194307 | POWER CIRCUIT AND ILLUMINATION APPARATUS - A series load circuit is a circuit formed by connecting a light-emitting device unit | 08-05-2010 |
| 20100201284 | ILLUMINATING DEVICE WITH LIGHT BUFFER - A light-emitting device may include at least one light source, which is configured for at least one of AC and PWM operation; and at least two optical buffers for absorbing light energy from the light source and for temporally delayed emission of the stored luminous energy, wherein the at least two optical buffers have different relaxation times and are sensitive to different wavelengths. | 08-12-2010 |
| 20100201285 | CIRCUIT ARRANGEMENT FOR CONVERSION OF AN INPUT AC VOLTAGE TO A DC VOLTAGE, RETROFIT LAMP HAVING A CIRCUIT ARRANGEMENT SUCH AS THIS, AS WELL AS A LIGHTING SYSTEM - A circuit arrangement for conversion of an input AC voltage to a DC voltage is provided. The circuit arrangement may include an input into which the input AC voltage is input; an output to which a load can be connected; and a first storage circuit and a second storage circuit, each storage circuit comprising at least one inductance and each comprising at least one capacitance, and a diode network. | 08-12-2010 |
| 20100201286 | OPTICAL INTEGRATING CAVITY LIGHTING SYSTEM USING MULTIPLE LED LIGHT SOURCES - A system to provide radiant energy of selectable spectral characteristic (e.g. a selectable color combination) uses an integrating cavity to combine energy of different wavelengths from different sources. The cavity has a diffusely reflective interior surface and an aperture for allowing emission of combined radiant energy. Sources of radiant energy of different wavelengths, typically different-color LEDs, supply radiant energy into the interior of the integrating cavity. In the examples, the points of entry of the energy into the cavity typically are located so that they are not directly visible through the aperture. The cavity effectively integrates the energy of different wavelengths, so that the combined radiant energy emitted through the aperture includes the radiant energy of the various wavelengths. The apparatus also includes a control circuit coupled to the sources for establishing output intensity of radiant energy of each of the sources. Control of the intensity of emission of the sources sets the amount of each wavelength of energy in the combined output and thus determines a spectral characteristic of the radiant energy output through the aperture. | 08-12-2010 |
| 20100207541 | ELECTRICAL DEVICE FOR END USER CONTROL OF ELECTRICAL POWER AND LIGHTING CHARACTERISTICS - This disclosure is an electronic machine, used in standard electrical lamps and lighting fixtures that operate on AC voltage. Installed between the lamp fixture and the standard incandescent/halogen light bulbs that are normally installed into it, the device performs its function of providing user control of the light generation process. By selecting the similarity/dissimilarity of the wattage of each plural light bulbs that are installed into the device, the user has the ability to modify the operational characteristics of the light bulbs, between either improved energy efficiency/light quality and whiteness, or extended light bulb life/lighting coloration. Also, the device extends the amount of time it takes to turn-on the light bulbs' filaments, providing additional extension of the light bulbs' life expectancy. | 08-19-2010 |
| 20100207542 | WINDOW LIGHTING SYSTEM - A window lighting system for a building structure curtain wall is provided with a housing sized to be received upon a structural member, with an opening facing the window. A refracting lens is mounted adjacent the opening. A plurality of longitudinally spaced discrete light sources are positioned in the housing, each oriented towards the refracting lens such that the light is conveyed to the refracting lens and subsequently out of the housing opening for illuminating the window. A lighting system is provided with the housing sized to extend along the window upon a cover of a structural member between a pair of sequential structure members. A lighting system cover is supported by the housing for concealing the light source and providing an ornamental appearance similar to that of the cover of the underlying structural member without obfuscating an ornamental appearance of the window and the structure members. | 08-19-2010 |
| 20100207543 | Biphase Laser Diode Driver And Method - A current-driven load such as LEDs or laser diodes is driven by a current driver having a two stages (or phases), the summed outputs of which have ripple which is forced to be out-of-phase with one another. In analog embodiments, an output (ripple or switching) of a master stage hysteresis controller is phase-shifted and scaled, and modulates the input of a slave stage hysteresis controller so that the slave stage pulls into a ripple-canceling phase. In a digital embodiment, a faster of the two phases is designated “master”, maximum and minimum thresholds are set, and the slave phase's on time is based on a previous cycle's slave phase ON time, the master stage OFF time and an offset. The slave controller preferentially “locks” to the anti-phase of the master stage (or phase) and the ripple current at the summed output substantially cancels. | 08-19-2010 |
| 20100207544 | METHOD AND SYSTEM FOR DEPENDENTLY CONTROLLING COLOUR LIGHT SOURCES - A method and system for dependently controlling colour light sources. The lighting system comprises a drive current controller providing current signals for one or more first groups of light-emitting elements, and a signal derivation module operatively connected to the drive current controller. The signal derivation module is configured to determine and provide current signals for one or more second groups of light-emitting elements, the current signals being based on the current signals provided to the first groups of light-emitting elements. The method comprises the steps of determining one or more first drive currents for driving one or more first groups of light-emitting elements, and determining one or more second drive currents for driving one or more second groups of light-emitting elements, wherein each of the one or more second drive currents is predetermined based on at least one of the one or more first drive currents. | 08-19-2010 |
| 20100213868 | VEHICLE MULTIFUNCTIONAL LAMP - A vehicle multifunctional lamp is provided. The vehicle multifunctional lamp mainly includes a lamp body, a lamp shade, and light source sets. The light source sets have at least two sets. In the at least two light source sets, at least one set is daylight lamps, and the rest is one or more of others such as sidelights, fog lamps, or turn signal lamps. Therefore, the lamp formed of the same lamp body and the lamp shade has car indicators having more than two functions. Thereby, the present invention is convenient to install. | 08-26-2010 |
| 20100213869 | ILLUMINATION DEVICE - An illumination device having one or more light emitting diodes is provided. The illumination device may include an alternate current to direct current converter, a current regulator for receiving an output of the alternate current to direct current converter and a light source, containing the one or more of light emitting diodes, for receiving the regulated current from the current regulator. The regulated current may be applied to the one or more light emitting diodes causing the light emitting diodes to illuminate. The one or more light emitting diodes may be connected in series and each light emitting diode may include a light emitting surface having rough surface pattern for maximizing the light intensity of the light emitting diodes while minimizing the heat dissipating from the light emitting diodes. | 08-26-2010 |
| 20100213870 | DIMMER JITTER CORRECTION - A controller and a method for controlling lamp drivers such as e.g. LED drivers for lamps having a fast response behavior such as e.g. LED lamps are proposed. They enable to substantially reduce or prevent a visible luminance flicker at such lamps when dimming the lamps with a conventional dimmer such as e.g. a phase cut dimmer. This can be achieved by switching off the lamp driver prematurely in such a way that a time jitter of a dimmer switching does not influence an on-time of the lamp driver. No bulky or expensive filters or capacitors are needed. Thus, a space-switch saving and/or inexpensive construction is enabled. | 08-26-2010 |
| 20100219770 | WHITE LED DEVICE CAPABLE OF ADJUSTING CORRELATED COLOR TEMPERATURE - A white Light Emitting Diode (LED) device that enables the adjustment of a Correlated Color temperature to realize emotional illumination is provided. The white LED device includes a package body for accommodating a plurality of light source units; a first light source unit accommodated in the package body, configured to have one or more first LED chips and a first phosphor, and configured to emit white light having a first Correlated Color Temperature (CCT); a second light source unit accommodated in the package body, configured to have one or more second LED chips and a second phosphor, and configured to emit white light having a second CCT; and a current control unit for varying current, to be supplied to at least one of the first and second LED chips, so as to adjust the first and second CCTs. | 09-02-2010 |
| 20100219771 | LED ILLUMINATOR AND LED LAMP - An LED illuminator includes a light emission circuit and a driver. The light emission circuit includes an LED group and a connection line connecting the LED group. The driver drives the LED group by using an AC voltage inputted from outside. The driver includes a constant-current control circuit. The constant-current control circuit keeps the current flowing to the light emission circuit at a predetermined value. | 09-02-2010 |
| 20100225245 | DIRECTION CONTROLLABLE LIGHTING UNIT WITH ULTRASOUND - A direction controllable lighting unit | 09-09-2010 |
| 20100225246 | Multi-Mode Flashlight - A lighting device includes one or more light sources, one or more switches, and a controller. The lighting device has multiple modes of operation. The controller selects modes of operation according to the one or more switches. The controller controls or operates the one or more light sources according to the selected mode of operation. | 09-09-2010 |
| 20100231139 | DRIVING CIRCUIT FOR INSTANT LIGHT EMITTING DIODE SHUTDOWN - A driving circuit for instant LED shutdown includes: a light emission driving circuit having a first PWM unit and a power converting unit, the power converting unit generating a driving current signal according to a signal generated by the first PWM unit, so as to drive the LED; a shunt parallel-connected with the LED for shunting a residual driving current after the power converting unit is turned off; and a second PWM unit for generating a signal which level is opposite to that of the signal from the first PWM unit so as to switch on or off an electrical connection between the shunt and the light emission driving circuit. When the signal from the second PWM unit is at a high level, the electrical connection is switched on so that a majority of the residual driving current flows to the shunt, thereby achieving instant LED shutdown. | 09-16-2010 |
| 20100237798 | Method and apparatus for retrofitting lighting fixtures with dimmable color selectable light emitting diodes - A method and apparatus for retrofitting a lighting fixture with at least one LED and an attachment configured to couple the light retrofitting means to a network including a power line; and a controlling means configured to influence the intensity and color of light emitted by the lighting means. | 09-23-2010 |
| 20100237799 | LED DRIVING CIRCUIT - The present invention provides an LED driving circuit including: an inverter unit for switching an input power source; a plurality of transformers including a plurality of primary windings connected to the inverter unit and connected to each other in series and a plurality of secondary windings each of which is coupled with each of the primary windings; a plurality of rectification units each of which is connected to each of the secondary windings; and a plurality of LEDs each of which is connected to each of the rectification units. | 09-23-2010 |
| 20100237800 | LIGHT EMITTING DEVICE AND DRIVING CIRCUIT THEREOF - A light emitting device comprises a first light emitting unit and a second light emitting unit connected in series with each other, and a PTF unit connected in parallel with the first light emitting unit and in series with the second light emitting unit. Each of the first light emitting unit and second light emitting unit comprises at least one LED. The PTF unit allows the second light emitting unit to be operated before operation of the first light emitting unit upon application of an AC voltage source. The light emitting device reduces total harmonic distortion and flickering, and improves power factor and optical efficiency. A driving circuit of the light emitting device is also disclosed. | 09-23-2010 |
| 20100237801 | BACKLIGHT UNIT - A backlight unit that realizes stabilization of lighting operation in the event of carrying out lighting operation at low luminance. The backlight unit is backlight unit ( | 09-23-2010 |
| 20100237802 | CURRENT BALANCING DEVICE, LED LIGHTING DEVICE, AND LCD B/L MODULE - A current balancing device includes: a power supply that outputs sinusoidal alternating-current; and a plurality of series circuits, each of the series circuits including a full-wave rectifier, one or more of windings, and one or more of loads in series connection, the full-wave rectifier connected to an output of the power supply and performing full-wave rectification for the alternating-current of the power supply. Currents flowing in the respective series circuits are balanced based on an electromagnetic force generated in one or more of the windings. | 09-23-2010 |
| 20100244730 | DIMMING INTERFACE FOR POWER LINE - An interface circuit for a lamp ballast includes first and second input power lines, L | 09-30-2010 |
| 20100244731 | WHITE LIGHT EMITTING DIODE, WHITE LIGHT EMITTING APPARATUS, AND LINEAR ILLUMINATOR USING THE SAME - A white light emitting apparatus ( | 09-30-2010 |
| 20100244732 | DISPLAY DEVICE, IN PARTICULAR TRANSPARENT MULTIMEDIA FACADE - A large-area display device, in particular multimedia façade, comprises at least one transparent element, in which the transparent element comprises at least one transparent substrate on which one or more lighting elements is/are arranged. | 09-30-2010 |
| 20100244733 | ACTIVELY POINT-LIGHTED MODULAR PANEL FOR STAR FIELD PRESENTATIONS - Modular panels can be attached to a substratum, e.g. a wall or ceiling, to display an actively lighted star field. Each panel displays a respective subarea of the star field, the panels being attached onto the substratum in edgewise juxtaposed relationship according to the star field. Each panel defines a set of apertures extending through the panel and distributed over the panel according to the panel's respective subarea. On a back face of each panel is a set of light pipes respectively corresponding to the panel's set of apertures, each light pipe being illuminated by a light emitting diode. Panels can include twinkling stars, constant stars, and/or shooting stars, and energization of the corresponding light emitting diodes is constant or varied accordingly. | 09-30-2010 |
| 20100244734 | LIGHT OUTPUT DEVICE - A light output device comprises a power supply and a plurality of light source device arrangements arranged in a line extending from a power connection, with adjacent light source device arrangements in the line connected together with an electrical connector arrangement. Each light source device arrangement is associated with a control circuit from the plurality of control circuits for providing independent control of the light source device arrangement output based on the control signal. The device can be reduced in length by disconnecting the connector arrangement between an adjacent pair of light source device arrangements and the remaining light source device arrangements extending from the power source are independently controlled by the control signal. | 09-30-2010 |
| 20100244735 | Lighting Device Supplying Temporally Appropriate Light - A lighting device operable to supply temporally appropriate light to a user comprises a light socket adapter interposed between a primary socket and a first type of lamp. The primary socket is connected to a switchable supply of electrical power. A first type of lamp includes wavelengths below 530 nm that are suppressive of melatonin production in a user viewing the light. There is a second type of lamp that supplies light substantially all above 530 nm so as to avoid suppressing melatonin production in a user viewing the light. The light socket adapter has at least one mode of operation in which automatic means causes the first and second types of lamp to be exclusively operable during respective predetermined periods of time. | 09-30-2010 |
| 20100244736 | LIGHTING SYSTEM AND LIGHTING ASSEMBLY - The present invention provides a lighting system adapted to provide lighting for an electromagnetic interference (EMI) shielded environment. The lighting system comprises a plurality of lighting fixtures each adapted to receive a light emitting diode (LED) light source, and a plurality of current limiting circuits each adapted to limit electrical current provided to power one or more of the LED light sources. The electrical current is provided from a direct current source external to the EMI shielded environment and filtered to minimise electromagnetic interference introduced into the EMI shielded environment. | 09-30-2010 |
| 20100253243 | LAMP DRIVING CIRCUIT - The present invention provides a lamp driving circuit including a first printed circuit board and a second printed circuit board, wherein the first printed circuit board includes a switching unit for switching an input power source; a control unit for controlling the switching unit; an inverter transformer connected to the switching unit; and a voltage conversion unit for converting a feedback reference current for controlling an output current applied from the inverter transformer into a reference voltage to apply the reference voltage to the control unit by being connected to the inverter transformer, the voltage conversion unit is connected to a first feedback terminal, and the second printed circuit board includes a plurality of balance coils connected to a plurality of lamps so that the same output currents are applied to the lamps; and a current conversion unit connected to a second feedback terminal. | 10-07-2010 |
| 20100259186 | Buck converter with III-nitride switch for substantially increased input-to-output voltage ratio - According to one exemplary embodiment, a buck converter for converting a high voltage at an input of the buck converter to a low voltage at an output of the buck converter includes a III-nitride switch interposed between the input and the output of the buck converter and a low resistance switch interposed between the output of the buck converter and a ground. The buck converter further includes a control circuit configured to control a duty cycle of the III-nitride switch. The III-nitride switch has a sufficiently high switching speed so as to allow a ratio of the input high voltage to the output low voltage of the buck converter to be substantially greater than 10. | 10-14-2010 |
| 20100259187 | CONTROLLER FOR SEMICONDUCTOR LIGHTING DEVICE - A semiconductor lighting device has an array of semiconductor light sources arranged in an x-y grid, a power input in electrical connection with the array and arranged to provide power to the light sources, a microcontroller in electrical connection with the array arranged to alter operation of the array as necessary, and a connector in electrical connection with the microcontroller, arranged to provide an interface to the microcontroller. A semiconductor lighting device has an array of semiconductor light sources arranged in an x-y grid, a power input in electrical connection with the array and arranged to provide power to the light sources, a microcontroller in electrical connection with the array and the power supply arranged to alter operation of the array as necessary, a first interface to allow a first level of access to the microcontroller by an end user, a second interface to allow a second level of access to the microcontroller for maintenance operations, and a third interface to allow a third level of access to the microcontroller during production. | 10-14-2010 |
| 20100259188 | AC LED MODULE WITH A CURRENT REGULATIVE DIODE - An AC LED module includes a substrate, a bridge rectifier unit a constant current unit and an LED chip set. The bridge rectifier unit mounted on the substrate further includes an output and an input coupled with an AC source. The constant current unit, mounted on the substrate and coupled with the output of the bridge rectifier unit, further includes at least one current regulative diode. The LED chip set mounted also on the substrate is electrically coupled with the constant current unit. | 10-14-2010 |
| 20100259189 | METHOD AND STRUCTURE OF FORMING A FLUORESCENT LIGHTING SYSTEM - A lighting system comprising a first plurality of fluorescent lamps ( | 10-14-2010 |
| 20100259190 | LIGHTING ASSEMBLY - A lighting fixture for facilitating plant growth and a light emitting component. The fixture comprises a single light emission source LED device which provides at least two emission peaks in the wavelength range of 300-800 nm and at least one of the emission peaks has Full Width of Half Maximum (FWHM) at least 50 nm or higher. The emission peaks of the LED match well with a plant photosynthesis response spectrum and is therefore particularly suitable for high efficiency artificial lighting. | 10-14-2010 |
| 20100264845 | LIGHT EMITTING DIODE DEVICES CONTAINING REPLACEABLE SUBASSEMBLIES - The present invention is directed generally to lighting devices, and more particularly to white light LED-based lighting devices configured such that key subassemblies may be replaced, thereby enabling the modification and/or repair of said device. | 10-21-2010 |
| 20100264846 | Power Management Unit with Adaptive Dimming - In embodiments of the present invention, a method and system is provided for designing improved intelligent, LED-based lighting systems. The LED based lighting systems may include fixtures with one or more of rotatable LED light bars, integrated sensors, onboard intelligence to receive signals from the LED light bars and control the LED light bars, and a mesh network connectivity to other fixtures. | 10-21-2010 |
| 20100270945 | CURRENT-SHARING TRANSFORMER AND POWER SUPPLY CIRCUIT HAVING SUCH CURRENT-SHARING TRANSFORMER - A current-sharing transformer includes a magnetic core assembly, a primary winding coil and multiple secondary winding coils. The magnetic core assembly includes a main magnetic post and multiple minor magnetic posts. The primary winding coil is wound around the main magnetic post. The secondary winding coils wound around respective minor magnetic posts. The secondary winding coils are connected to respective DC loads through respective rectifier circuits. The magnetic paths between respective minor magnetic posts and the main magnetic post are equal, so that the magnitudes of currents passing through the DC loads are balanced by the current-sharing transformer. | 10-28-2010 |
| 20100270946 | ELECTRONIC CANDLE ASSEMBLY - An electronic candle assembly includes a plurality of electronic simulation candles, a main body supporting the electronic simulation candles, a power supply for supplying power, and a sensor system received in the main body. Each electronic simulating candle includes an illuminating device. The sensor system includes a plurality of sensors, an analog-to-digital convertor, a storage unit, and a processor. The sensors measure the velocity of air current traveling through the illuminating device and outputting the velocity of the air current as an analog electrical signal. The analog-to-digital convertor converts analog electrical signal into a digital signal. The storage unit stores predetermined velocity values and predetermined modes for powering the illuminating device. The processor compares the digital signal with the predetermined velocity and controlling the power supply to power the illuminating device in a predetermined mode. | 10-28-2010 |
| 20100270947 | CURRENT-SHARING SUPPLY CIRCUIT FOR DRIVING MULTIPLE SETS OF DC LOADS - A current-sharing supply circuit includes a current providing circuit, a current-sharing circuit, a first output rectifier circuit and a second output rectifier circuit. The current providing circuit receives an input voltage and generating a first current or a first voltage, thereby providing electrical energy to a first set of DC loads and a second set of DC loads. The first output rectifier circuit is interconnected between the first set of DC loads and a first output terminal of the current-sharing circuit, thereby generating a first output current to the first set of DC loads. The second output rectifier circuit is interconnected between the second set of DC loads and a second output terminal of the current-sharing circuit, thereby generating a second output current to the second set of DC loads. The first output current and the second output current are balanced by the current-sharing circuit. | 10-28-2010 |
| 20100277095 | RESONANT DRIVER WITH LOW-VOLTAGE SECONDARY SIDE CONTROL FOR HIGH POWER LED LIGHTING - The present invention relates to a power supply device for supplying power to a load, preferably a LED, comprising a first circuitry ( | 11-04-2010 |
| 20100277096 | LIGHTING DEVICE WITH STAGGERED LIGHT SOURCES RESPONSIVE TO A SINGLE USER CONTROL - Various lighting devices and related methods of operation are provided which may be used to adjust brightness levels of a plurality of light sources in a staggered fashion in response to a single user control. In one example, a lighting device includes a plurality of light sources. Each light source is adapted to exhibit an associated current brightness level within a range of brightness levels associated with each light source extending from an associated minimum brightness level to an associated maximum brightness level. The lighting device also includes a user control adapted to selectively adjust the current brightness levels exhibited by the light sources in a staggered fashion such that the light sources exhibit different current brightness levels from each other over at least a range of positions of the user control. | 11-04-2010 |
| 20100277097 | SUSTAINABLE OUTDOOR LIGHTING SYSTEM - A method of generating light involves energizing one or more first light emitting elements thereby generating primary illumination of a first wavelength range over a target area, and energizing one or more second light emitting elements thereby generating secondary illumination of a second wavelength range toward the target area during a critical period. Both the primary illumination and the secondary illumination are combined within at least a portion of the target area thereby enhancing at least one visual property within the at least a portion of the target area. | 11-04-2010 |
| 20100277098 | LED LIGHTING SYSTEM - An LED lighting system having a plurality of light rods. Each light rod includes a generally hollow, longitudinal housing and a plurality of light emitting diodes disposed within the housing. Electrical wiring extends between the light emitting diodes, the light emitting diodes being electrically coupled to the wiring. A male electrical connector terminates and seals a first end of the housing and is electrically coupled to the wiring. A female electrical connector terminates and seals a second, opposing end of the housing and is also electrically coupled to the wiring. The light rods are electrically and mechanically joined together by coupling the male electrical connectors of the light rods to female connectors of adjacent light rods. | 11-04-2010 |
| 20100283404 | Illumination Device with Solid State "Array" Emitters - An illumination device utilizes one or more laser array emitters to provide a compact, high power light source useful for illuminating objects or areas of interest and in searching for items that may fluores when illuminated by light that interacts with material in or on the items. The illumination device is capable of providing a retina safe output at an object based on the distance from the illuminator to the object. | 11-11-2010 |
| 20100283405 | Device Lighting Apparatus and Method - In accordance with embodiments of the invention, an apparatus and method for device lighting is disclosed. The apparatus and method comprises a key operable for communicating with a computing device. The apparatus further comprises a light emitting device for lighting the key and a selector operable for selecting between a plurality of lighting schemes. More specifically, each of the plurality of lighting schemes defines at least one of colour, intensity and duration of the lighting of the key. | 11-11-2010 |
| 20100283406 | BI-DIRECTION CONSTANT CURRENT DEVICE - An LED lamp includes a bi-direction constant current device coupled between a power supply and a LED load to provide stable positive and negative currents to the LED load. The bi-direction constant current device includes a pair of current sources face-to-face or back-to-back connected in series between the power supply and the LED load, and two protective elements shunt to the pair of current sources, respectively. | 11-11-2010 |
| 20100283407 | CIRCUIT FOR COLOR CHANGING LED DEVICES WITH VOLATILE ACTIVE EMISSIONS - A control circuit for color changing LED devices with volatile active emissions and hidden input jacks is disclosed. The circuit allows the device to use variously sized power adapters, and a plurality of colored LEDs positioned so as to emit a colored light show. The circuit also includes a volatile active dispenser to control volatile active emission rates. A hidden input jack is also disposed to provide additional power as required. Thus, the circuit provides the combination of illumination and/or ambient light, colored light shows, volatile active emission control, and combinations thereof, within a single standalone device. | 11-11-2010 |
| 20100283408 | METHOD AND APPARATUS FOR PROVIDING AN LED LIGHT FOR USE IN HAZARDOUS LOCATIONS - A lighting source that can be deployed in a hazardous environment is disclosed. For example, the lighting source comprises at least one light emitting diode and a power supply for providing power to the at least one light emitting diode. The lighting source also comprises an enclosure for housing the at least one light emitting diode and the power supply, where said lighting source is for deployment in a hazardous environment. | 11-11-2010 |
| 20100289428 | Controllable Retroffited LED Panel Lighting - The present invention involves a lighting kit adapted for installation into a conventional fluorescent lighting unit having a fluorescent socket and a ballast disposed in the lighting unit. At least one elongated body has fixture ends configured to engage a fluorescent socket. The elongated body supports a plurality of light emitting diodes (LEDs). A control unit, capable of receiving exterior control signals, electrically connects the LEDs to a power source for selectively dimming the LEDs, and is adapted to be mounted in place of the ballast. Dimming may be accomplished by control circuitry that recognizes repeated switching of a power source, and/or by a dipswitch on the LED device that sets the dim level. A method of retrofitting a fluorescent housing unit involves installing a LED device in the fluorescent housing unit and mounting an LED driver in the location configured to receive a conventional fluorescent ballast. | 11-18-2010 |
| 20100295468 | LED BAR - The present invention relates to LED bar modules where the LED groups are placed at a pixel board. The present invention further concerns a method for calibration of LEDs. It is the object of the invention to achieve a highly efficient LED bar for generating a bar of light. A further object of the invention is to store calibration data for each LED both electrically and mechanically close to the actual LED. Preferably, the main printed circuit is placed inside a heat conductive tube, where the pixel board is placed outside the heat conductive tube in a longitudinal recess, where the main printed circuit is placed inside an isolation cover. Hereby, it is achieved that the LEDs are placed on the outside of the tube in a way where heat generated from the LEDs is conducted downwards to the tube. Inside the tube, the rest of the power electronics and also the light controlling electronics are placed. | 11-25-2010 |
| 20100295469 | ILLUMINATED PUSHBUTTON SWITCH WITH STEP DIMMING - A discrete dimming luminance control circuit for light emitting diode illumination includes first and second control inputs, a first supply circuit between the first control input and an output, a second supply circuit between the second control input and the output, a first shunt circuit between the second control input and the output, and a second shunt circuit between the first control input and the output. The luminance control circuit delivers a first voltage to the output when a supply voltage is applied to the first control input and the second control input is left open, a second voltage when the supply voltage is applied to the second control input and the first control input is left open, a third voltage when the supply voltage is applied to the first control input and the second control input is grounded, and a fourth voltage when the supply voltage is applied to the second control input and the first control input is grounded. | 11-25-2010 |
| 20100295470 | CONTROL DEVICE FOR A FLYBACK CONVERTER - A control device for regulating the constant output current of a flyback converter, the control device adapted to control the on time period and the off time period of a primary winding switch and including a first circuit adapted to multiply a first signal representative of current flowing through the primary winding and a second signal representative of an input voltage and outputting a signal representative of the multiplication, a second circuit adapted to compare the output signal of the first circuit and a third signal representative of the direct output voltage, the control device determining, on the basis of the output signal of the second circuit, the on time period and the off time period of the switch so that the output signal of the first circuit is equal to the signal representative of the direct output signal to have the output current of the flyback converter constant. | 11-25-2010 |
| 20100295471 | CURRENT BALANCING APPARATUS - A current balancing apparatus includes a power supply unit | 11-25-2010 |
| 20100295472 | Power supply for floating loads - A power supply includes a current supply, a plurality of output channels, and a controller. Each of the output channels has a load and a channel switch with a reference voltage. All of the channel switches are referenced to the same reference voltage. | 11-25-2010 |
| 20100295473 | Power Management Unit with Sensor Logging - In embodiments of the present invention, a method and system is provided for designing improved intelligent, LED-based lighting systems. The LED based lighting systems may include fixtures with one or more of rotatable LED light bars, integrated sensors, onboard intelligence to receive signals from the LED light bars and control the LED light bars, and a mesh network connectivity to other fixtures. | 11-25-2010 |
| 20100295474 | Power Management Unit with Modular Sensor Bus - In embodiments of the present invention, a method and system is provided for designing improved intelligent, LED-based lighting systems. The LED based lighting systems may include fixtures with one or more of rotatable LED light bars, integrated sensors, onboard intelligence to receive signals from the LED light bars and control the LED light bars, and a mesh network connectivity to other fixtures. | 11-25-2010 |
| 20100295475 | Power Management Unit with Ballast Interface - In embodiments of the present invention, a method and system is provided for designing improved intelligent, LED-based lighting systems. The LED based lighting systems may include fixtures with one or more of rotatable LED light bars, integrated sensors, onboard intelligence to receive signals from the LED light bars and control the LED light bars, and a mesh network connectivity to other fixtures. | 11-25-2010 |
| 20100301767 | INTERACTIVE LIGHT SYSTEM FOR A CLOTHING RACK - The invention relates to a an interactive light system for a clothing rack, particularly for creating attraction lighting for clothes hanging on a rail of the clothing rack. A basic idea of the invention to control light sources integrated in the clothing rack depending on the detection of an object such as a person. This allows implementing a kind of an interactive lighting function, and furthermore attraction functions for shoppers. An interactive light system ( | 12-02-2010 |
| 20100301768 | Power Management Unit with Real Time Clock - In embodiments of the present invention, a method and system is provided for designing improved intelligent, LED-based lighting systems. The LED based lighting systems may include fixtures with one or more of rotatable LED light bars, integrated sensors, onboard intelligence to receive signals from the LED light bars and control the LED light bars, and a mesh network connectivity to other fixtures. | 12-02-2010 |
| 20100301769 | Power Management Unit with Remote Reporting - In embodiments of the present invention, a method and system is provided for designing improved intelligent, LED-based lighting systems. The LED based lighting systems may include fixtures with one or more of rotatable LED light bars, integrated sensors, onboard intelligence to receive signals from the LED light bars and control the LED light bars, and a mesh network connectivity to other fixtures. | 12-02-2010 |
| 20100301770 | Power Management Unit with Lifetime Prediction - In embodiments of the present invention, a method and system is provided for designing improved intelligent, LED-based lighting systems. The LED based lighting systems may include fixtures with one or more of rotatable LED light bars, integrated sensors, onboard intelligence to receive signals from the LED light bars and control the LED light bars, and a mesh network connectivity to other fixtures. | 12-02-2010 |
| 20100301771 | Power Management Unit with Power Source Arbitration - In embodiments of the present invention, a method and system is provided for designing improved intelligent, LED-based lighting systems. The LED based lighting systems may include fixtures with one or more of rotatable LED light bars, integrated sensors, onboard intelligence to receive signals from the LED light bars and control the LED light bars, and a mesh network connectivity to other fixtures. | 12-02-2010 |
| 20100308745 | ILLUMINATION SYSTEM WITH FOUR PRIMARIES - An illumination system ( | 12-09-2010 |
| 20100315020 | FURNISHING COMPLEMENT, IN PARTICULAR FOR HOUSE-ROOMS SEPARATION - A door, in particular for separating house rooms, equipped with a transparent portion ( | 12-16-2010 |
| 20100315021 | CIRCUIT AND METHOD FOR CONTROLLING RGB LED COLOR BALANCE USING A VARIABLE BOOSTED SUPPLY VOLTAGE - A microprocessor uses one or more output pins to pulse width modulate a charge pump network to achieve a boosted voltage on an output port. The boosted voltage is then used to drive an LED, which may have a higher voltage drop than that of the starting un-boosted voltage. The adjustment of either the frequency or duty cycle of the PWM signal allows for adjustment of the steady state output voltage. This allows for the adjustment of the brightness of the LED by firmware while supplying enough voltage drop required by the LEDs. | 12-16-2010 |
| 20100320932 | LED LAMP - An LED light lamp includes a lamp body, an adjusting rod, a number of light panels, and at least one rheostat. The lamp body defines a chamber therein. The adjusting rod includes a sliding bar, and an adjustable panel extending outwards from and surrounding an end of the sliding bar. The sliding bar is slidably received in the chamber of the lamp body. The adjustable panel includes an annular periphery. Each light panel includes a number of LED chips distributed on the light panel, and is pivotally mounted on the lamp body and against the annular periphery of the adjustable panel. A rheostat is electrically coupled into a power supply circuit of the LED chips. The resistance of the rheostat is adjusted to control the current flowing through the LED chips by the sliding bar when the sliding bar slides in the lamp body. | 12-23-2010 |
| 20100320933 | ILLUMINATION DEVICE - An illumination device for illuminating a road includes a light source, a solar cell module, a sensor and a control module. The light source includes a plurality of light emitting elements and an optical element. Light generated from the light emitting elements passes through the optical element and is emitted from the illumination device at a half-intensity angle of between −20° and 20° with respect to a road surface. The solar cell module is electrically connected to the light emitting elements, and converts light directly into electricity. The sensor detects environmental brightness. The control module is electrically connected to the solar cell and the light emitting elements. The control module controls the current to the light emitting elements to adjust the brightness of the light emitting elements. | 12-23-2010 |
| 20100320934 | CIRCUITS AND METHODS FOR DRIVING A LOAD WITH POWER FACTOR CORRECTION FUNCTION - A circuit for driving a load includes a power line, converter circuitry, and a controller. The power line is operable for providing an input current and an input voltage. The converter circuitry coupled to the power line is operable for converting the input voltage to a regulated voltage to drive the load, and for providing a current detection signal indicating whether a converter current flowing through the converter circuitry drops to a predetermined level. The controller coupled to the converter circuitry is operable for correcting a power factor of the circuit based on the current detection signal and the input voltage such that a waveform of the input current follows a waveform of the input voltage. | 12-23-2010 |
| 20100320935 | CURRENT-REGULATED POWER SUPPLY WITH SOFT-START PROTECTION - A current-regulated power supply provides soft-start protection to prevent the generation of large in-rush currents. The current-regulated power supply includes a current regulation module that operates in either a soft-start mode of operation or a normal mode of operation and a mode selection module that makes mode of operation determinations. In particular, mode-selection module monitors the load current supplied to the attached load and maintains the current-regulation module in the soft-start mode of operation until the monitored load current exceeds a threshold value, at which time the mode-selection module causes the current regulation module to operate in the normal mode of operation. | 12-23-2010 |
| 20100327767 | SYSTEM AND METHOD FOR LED LAMPSTRING - A light emitting diode (LED) lamp includes a base; an LED fixed to the base; an integrated circuit providing constant current or voltage control to the LED; and connectors for coupling one or more wires conducting electricity to the integrated circuit. The base may include holes to facilitate mounting thereof to an external surface. The respective sides of the base may be rounded in shape. The sides of the base may be of an electrically non-conductive material. The LED may be a long LED; a short LED; a frosted LED; a RBG LED; or a single color LED. The LED may be a through hole LED or a surface mounted LED. The LED may be a surface mounted LED or a lens. The lens may include the shape of at least one of: a circle; a star; a triangle; a square; or a bullet. | 12-30-2010 |
| 20100327768 | LIGHTING DEVICE - A lighting device including a reflector including a reflecting surface, and a light source unit disposed under the reflector and configured to emit light towards the reflector. Further, the light source unit includes a main body disposed longitudinally along the reflector and having first and second outside surfaces that are inclined towards the reflecting surface, and a plurality of first light emitting diodes disposed on the first outside surface and a plurality of second light emitting diodes disposed on the second outside surface and configured to emit the light towards the reflector. | 12-30-2010 |
| 20100327769 | Light plate - A light plate includes a light guide plate and four light source modules. The light source modules are disposed around the light guide plate. Each of the light source modules includes a first white light emitting element and a second white light emitting element. The first white light emitting element is capable of emitting a first white beam. The second white light emitting element disposed beside the first white light emitting element is capable of emitting a second white beam. The first white light emitting elements of the light source modules are mirror-symmetrical with respect to a first reference plane and a second reference plane. The second white light emitting elements of the light source modules are mirror-symmetrical with respect to the first reference plane and the second reference plane. The correlated colour temperature (CCT) of the first white beam is greater than the CCT of the second white beam. | 12-30-2010 |
| 20100327770 | Circuit arrangement for controlling light emitting diodes - In a circuit arrangement for controlling light emitting diodes (LED's) combined in groups, with at least one driver which has current outputs, via which current can be delivered to the LED's, as well as a control input by which the current supplied to the LED's is adjustable, the current control input is connected to the voltage output of a voltage source. | 12-30-2010 |
| 20100327771 | METHOD FOR CONTROLLING GAS DISCHARGE LAMPS - The invention relates to a method and a device for controlling gas discharge lamps using a direct current/alternating current inverter (DC/AC inverter) that is operated at a predetermined frequency and that generates an AC output voltage U for operating the gas discharge lamps from a DC input voltage which has a residual ripple. According to the invention, the DC/AC inverter is operated in zero voltage switching (ZVS) mode, wherein the DC input voltage is used as the control variable for the lamp current I | 12-30-2010 |
| 20110001437 | Hoist Cable Illuminator - Individual illuminating modules can be coupled to each other and attached to a bumper on the end of a hoist cable. Different types of illumination modules can have similar outer dimensions and attachment fittings, but can be configured to provide different types of illumination. Modules of different types can be combined to accommodate particular circumstances or needs. | 01-06-2011 |
| 20110006702 | LAMP AND LIGHT EMITTING DIODE TUBE THEREOF - A lamp including a tube holder and a light emitting diode tube is disclosed. The tube holder includes a first terminal socket and a second terminal socket. The first terminal socket is electrically connected to a power source. The light emitting diode tube is installed onto the tube holder. One end of the light emitting diode tube has two first conductive terminals plugging in the first terminal socket so as to provide the power source to the light emitting diode tube. Alternatively, one end of the light emitting diode tube includes at least one first conductive terminal and the other end includes at least one second conductive terminal so as to conduct an alternate current power or a direct current power to the light emitting diode tube via the first conductive terminal and the second conductive terminal of two ends of the light emitting diode tube, respectively. | 01-13-2011 |
| 20110006703 | Light emitting diode illumination device and method for controlling electric current - A light emitting diode (LED) illumination device utilizes a power transmission line to electrically connect a driving module and at least one LED lamp body. The driving module outputs a high frequency alternating power having above 30 voltages and above 72 Hz frequencies through frequency modulation. Each LED lamp body has at least one LED element and a rectification module. The high frequency alternating power generated from the driving module is modulated by the rectification module into a direct power to drive the LED element. Accordingly, the flicker phenomenon on the light source can be effectively improved, and the filter component installed inside each LED lamp body can be omitted. A simple circuit is used to reliably drive the LED element to achieve goals of rapidly developing products and saving costs. | 01-13-2011 |
| 20110006704 | LEAD FRAME BY WIRE BINDING METHOD AND LED POWER LAMP USING SAME - The present invention provides an approach for overcoming the problem of using a printed circuit board for mounting LEDs in a conventional LED lamp. Provided is a lead frame by a wire binding method including: a main body ( | 01-13-2011 |
| 20110012530 | ADAPTIVE DIMMER DETECTION AND CONTROL FOR LED LAMP - An LED lamp is provided in which the output light intensity of the LEDs in the LED lamp is adjusted based on the input voltage to the LED lamp. A dimmer control unit detects a type of dimmer switch during a configuration process. Using the detected dimmer type, the dimmer control unit generates control signals appropriate for the detected dimmer type to provide regulated current to the LEDs and to achieve the desired dimming effect. The LED lamp can be a direct replacement of conventional incandescent lamps in typical wiring configurations found in residential and commercial building lighting applications that use conventional dimmer switches. | 01-20-2011 |
| 20110012531 | LED LAMP - An LED lamp includes an elongated lamp post, a major light fixed on a top of the lamp post, a solar panel arranged on the lamp post and exposed to sunshine, a battery received in the lamp post and connected to the solar panel, an assistant light fixed on the lamp post, and a driving unit interconnecting the assistant light and the battery to control electric current to the assistant light. The major light consists of a plurality of LEDs. The assistant light consists of LEDs or fiber optic lights. | 01-20-2011 |
| 20110012532 | WIRELESS SCENE ARRANGEMENT - An example control arrangement includes a power supply, a first load operative to receive power when coupled to the power supply, and a second load operative to receive power when coupled to the power supply. A receiver is programmable to couple the first load, the second load, or both to the power supply in response to a wireless signal. A switch includes a wireless transmitter portion powered by a self-energizing portion. A wireless transmitter portion communicates the wireless signal to the receiver in response to an actuation of the switch. | 01-20-2011 |
| 20110018462 | SYSTEM, METHOD AND APPARATUS FOR ILLUMINATING A BEZEL - An application for a bezel with internal lighting includes at least one illuminated element situated behind a monitor/television bezel. The brightness and color of the illuminating elements and hence the bezel appearance are modified based upon either user preference or an internal or external parameters such as time, content being viewed, recording status, etc. | 01-27-2011 |
| 20110018463 | PASSIVE CURRENT BALANCE DRIVING APPARATUS - A passive current balance driving apparatus including first and second drivers is provided. The first driver includes a first balance-capacitor having a first terminal coupled to a first terminal of an AC signal source and a second terminal providing a first balance AC-voltage; and a first rectification unit rectifying the first balance AC-voltage to output a first DC-voltage to drive a first LED string with multi-LEDs connected in series. The second driver includes a second balance-capacitor having a first terminal coupled to a first terminal of the AC signal source and a second terminal providing a second balance AC-voltage; and a second rectification unit rectifying the second balance AC-voltage to output a second DC-voltage to drive a second LED string with multi-LEDs connected in series. The capacitive reactances of these two balance-capacitors are the same and respectively greater than the total internal resistances of the first and second LED strings. | 01-27-2011 |
| 20110018464 | DC LOW VOLTAGE DISTRIBUTION BOX FOR INDOOR MULTI LEDS LAMP - A low-voltage DC distribution board for indoor LED lighting with multiple LED lamps, comprises: a power converting module ( | 01-27-2011 |
| 20110018465 | METHOD AND APPARATUS FOR LIGHT INTENSITY CONTROL - The present invention provides a method and apparatus for optical feedback control for a lighting unit ( | 01-27-2011 |
| 20110018466 | MULTI-ELEMENT LED LAMP PACKAGE - In one embodiment, a single light emitting diode lamp package includes at least two light emitting devices that can be switched independently of one another and thus may be useful in vehicular lighting applications, for example low and high beam headlights. In another embodiment, a LED device includes a first LED die and at least one additional LED die disposed at different positions within a common reflector cup. Multiple LED sub-assemblies may be mounted to a common lead frame along non-coincident principal axes. Methods for varying intensity or color from multi-LED lamps are further provided. | 01-27-2011 |
| 20110025229 | MULTI-FUNCTION PLANAR LIGHT SOURCE ILLUMINATION LAMP - The invention discloses a multi-function planar light source illumination lamp having a containing space and comprising a first lighting unit, a second lighting unit, a light guide unit and a control unit. The first lighting unit is used for generating a first light source arranged as a linear element. The second lighting unit is used for generating a second light source arranged as a punctual array. The light guide unit, disposed in the containing space, is used for providing the multi-function planar light source illumination lamp to generate a homogeneous planar light source. The control unit generates a control signal for controlling the first lighting unit and the second lighting unit to generate a luminous flux of the first light source and the second light source. | 02-03-2011 |
| 20110025230 | DRIVER DEVICE FOR LEDS - The present invention relates to a driver device ( | 02-03-2011 |
| 20110025231 | METHOD AND APPARATUS FOR RETROFITTING HID LAMPS WITH SYSTEM TO PERIODICALLY ADJUST OPERATING WATTAGE - A method, apparatus, and system for increasing usable light from a high intensity lighting fixture to a target area without an increase in energy use. In one aspect, the circuit is retrofitted into an existing lamp circuit that allows selective change in operating power or wattage to the lamp, over a substantial period of operation time, to save energy. In one aspect operating wattage of the lamp would be reduced. In another aspect of the invention, reduction in operating wattage is accomplished by a switchable capacitance in electrical communication with the lamp circuit. | 02-03-2011 |
| 20110031894 | LIGHTING DEVICE HAVING FIRST, SECOND AND THIRD GROUPS OF SOLID STATE LIGHT EMITTERS, AND LIGHTING ARRANGEMENT - A lighting device comprising first, second and third groups of solid state light emitters, the first group emitting light having a dominant wavelength of 430 to 490 nm, the second group at 525 to 575 (in some devices 540 to 575 nm), the third group at 610 to 640 nm. In some devices, wavelength of light from emitters in first and second groups, and light from second and third groups, differs by at least 70 nm. Some devices emit light having CRI Ra of at least 70 when first, second and third groups of emitters are illuminated. Also, a lighting arrangement comprising first, second and third groups as above, in addition to a fourth emitter emitting light of dominant wavelength outside the ranges for the first, second and third groups, and not more than 10 nm different from a dominant wavelength of a color on an item to be illuminated. | 02-10-2011 |
| 20110031895 | LIGHT EMITTING DIODE (LED) DRIVING CIRCUIT - A light emitting diode (LED) driving circuit is provided. The LED driving circuit includes a voltage adjusting unit, a switch unit, and a control unit. The control unit is coupled to the voltage adjusting unit and the switch unit. The voltage adjusting unit outputs a driving voltage to a first end of each of a plurality of load units. The switch unit is coupled to a second end of each of the load units. When one LED string in the load units is coupled to a current source, the voltage adjusting unit adjusts the voltage level of the driving voltage so that the voltage level of the driving voltage of the driving voltage corresponds to the driven LED string. Thereby, a driving problem caused by the variation in electrical characteristics of the LEDs is alleviated. | 02-10-2011 |
| 20110031896 | LIGHTING DEVICE FOR LIGHTING THE AIRFIELD OF AN AIRPORT - The invention relates to a lighting device ( | 02-10-2011 |
| 20110037409 | HIGH EFFICIENCY LIGHTING DEVICE INCLUDING ONE OR MORE SATURATED LIGHT EMITTERS, AND METHOD OF LIGHTING - A solid state lighting device comprising at least one first light emitter that emits non-saturated non-white light of a first color point, at least one second light emitter that emits saturated non-white light, and a controller configured to control a ratio of light emitted by the first emitter(s) and by the second light emitter(s) to provide non-white light of a second color point. Also, a solid state lighting device comprising at least one first light emitter that emits light within a first area or a second area on a Chromaticity Diagram, and at least one second light emitter, wherein output light is non-white and has a second color point. Also, methods of providing non-white light. | 02-17-2011 |
| 20110037410 | Control Method Capable of Preventing Flicker Effect and Light Emitting Device Therefore - A control method capable of preventing flicker effect for a light source module includes detecting variation situations of a driving current passing through the light source module to generate a current detection signal, adjusting a variable reference voltage according to the current detection signal, obtaining a feedback voltage from the light source module, generating a voltage control signal according to the feedback voltage and the variable reference voltage, and generating an output voltage according to the voltage control signal to drive the light source module. | 02-17-2011 |
| 20110037411 | MOULDING WITH EMBEDDED LIGHTING - A decorative moulding having embedded lighting that is directly visible through a hole in the moulding when viewed from a front surface of the moulding, and a method of making a modular moulding having embedded lighting. The lighting is provided by a light source, preferably a light emitting diode, that is positioned in a light mount. The light mount is fixed to the substrate with the light source in the hole in the moulding. A plurality of light mounts can be positioned in a respective plurality of holes in the substrate at desired spacings with light mounts connected to each adjacent light mount by electrically conductive wires. The decorative moulding can be manufactured as modular pieces and the electrically conductive wires can be connected to wires of adjacent modular pieces. | 02-17-2011 |
| 20110037412 | LED LIGHTING DEVICE - A LED lighting device enables the assembly of one or more LED products in a variety of structures for a broad range of applications. In particular, one or more prefabricated individual water-resistant LED products are assembled in an attachable/detachable fixing frame in a variety of structures for use in a broad range of applications which include street lights, security lighting, tunnel lights, floodlights, etc. A further advantage of a LED lighting device is that it can be conveniently used with AC power, without the use of an AC/DC adapter or a stabilizer. | 02-17-2011 |
| 20110037413 | Solid State Lighting Devices Including Light Mixtures - A solid state lighting apparatus includes a plurality of light emitting diodes (LEDs). Each of the LEDs includes an LED device configured to emit light having about a first dominant wavelength and a phosphor configured to receive at least some of the light emitted by the LED device and responsively emit light having about a second dominant wavelength. A combined light emitted by the LED device and the phosphor of a first one of the plurality of LEDs has a first color point and a combined light emitted by the LED device and the phosphor of a second one of the plurality of LEDs has a second color point that falls outside a seven step Macadam ellipse around the first color point. | 02-17-2011 |
| 20110043131 | Parallel light-emitting circuit of parallel LED light-emitting device and circuit board thereof - A circuit board of a parallel light-emitting circuit of parallel LED light-emitting device has an electrical insulation board, two wire patterns and at least two power wires. The two wire patterns are oppositely formed on the electrical insulation board. Each wire pattern is connected to the corresponding power wire and has a matrix main loop having closed loops and a plurality of sub-wires formed inside the corresponding closed loop. A plurality of LEDs are respectively mounted on the corresponding closed loop and electrically connect with the two sub-wires of the two wire patterns. When a DC power supply is inputted to the power wires, a current of the DC power supply uniformly flows through the matrix main loop and the sub-wires, so that the LEDs electrically connected to the corresponding sub-wires receive approximately equal current to further emit light with uniform brightness. | 02-24-2011 |
| 20110043132 | Lighting device - A lighting device including a housing, a coupling member being coupled to an inner upper surface of the housing, having an insertion groove formed in the middle part thereof in a direction of the inner upper surface of the housing, and having a first connection terminal provided in the middle of the insertion groove, at least one reflector coupled between an inner wall surface of the housing and an outer wall surface of the coupling member; and a light source unit having an upper part thereof attachable to and removable from the coupling member by using the insertion groove, having a second connection terminal provided in the upper part thereof, the second connection terminal being electrically connected to the first connection terminal when connected to the coupling member, and having a lower part thereof emitting light toward the reflector. | 02-24-2011 |
| 20110043133 | LED-Based Lighting Power Supplies With Power Factor Correction And Dimming Control - A power supply for powering one or more loads includes a boost circuit with power factor correction (PFC) that provides an operating voltage from an electrical power source, and a dimmer detection circuit that determines a dimming level applied to the electrical power source, and generates a pulse width modulated (PWM) signal based upon the dimming level. The power supply also includes one or more current control circuits, each current control circuit being associated with each of the one or more loads, and coupled in series with the operating voltage, its associated load, and a ground of the power supply, so as to control a current through its associated load in response to the PWM signal. | 02-24-2011 |
| 20110043134 | LIGHT EMITTING DIODE ARRAY DRIVING APPARATUS - There is provided a LED array driving apparatus for driving a light emitting array having a plurality of LEDs connected to one another, including: a DC-DC converting part; a current/voltage detecting part detecting a magnitude of a first current flowing through a switching transistor of the DC-DC current converting part to correspondingly output a first current detection voltage, detecting a magnitude of a both-end voltage of the LED array to correspondingly output a LED array detection voltage, and detecting a magnitude of a current flowing through the LED array to correspondingly output a second current detection voltage; and a constant current controlling part controlling an on/off duty of the switching transistor according to the magnitude of the first current detection voltage, the second current detection voltage and the LED array detection voltage detected by the current/voltage detecting part. | 02-24-2011 |
| 20110043135 | LED LIGHTING MODULE USING AC POWER - The present invention relates to an LED lighting module using AC power, where an AC-driven LED lighting is implemented by a simplified rectifier circuit and by adjusting the number of LED elements, without using a dedicated circuit configuration such as SMPS, and the LED modules are arranged in a way to enable a multiplicity of unit modules to be driven with a single power supply. The LED lighting module using AC power contains a power supply which receives AC power; unit modules, each having at least two LED sets connected together, each having one LED element or plural interconnected LED elements driven by an input power; and rectifier circuits, each being separately installed to which the power is input, for rectifying AC power which is input through the power supply when a multiplicity of unit modules form a loop. | 02-24-2011 |
| 20110043136 | LIGHT EMITTING DIODE SYSTEM - The invention relates to a light emitting system ( | 02-24-2011 |
| 20110050119 | Light-Emitting Diode Light Rod With Screw Head - A light-emitting diode(LED) light rod with screw head is provided, including a circuit board having a plurality of LED lights distributed evenly on the surface; a screw head further including an insulated main body and a metal screw shell, the inside of main body having a control circuit for electrical connection with the screw shell and circuit board respectively, the screw shell matching the conventional socket base for tungsten light bulb in a conventional light string, and control circuit for transforming household alternating current (AC) into direct current (DC) for LED lights; and a rod shell, for the light to shine through and for housing the circuit board, the rod shell having one end closed and the other end connected to the main body of the screw head. | 03-03-2011 |
| 20110050120 | LIGHTING CONTROL SYSTEM AND LED LAMP - A lighting control system and an LED lamp for use with the lighting control system are provided. In one embodiment, the LED lamp includes a color LED including a red LED, a green LED, and a blue LED, and a lamp contact having a first contact section, a second contact section, and a third contact section, each of the first contact section, the second contact section, and the third contact section including a positive contact and a negative contact, wherein the first contact section is electrically connected to the red LED, the second contact section is electrically connected to the green LED, and the third contact section is electrically connected to the blue LED. The lighting control system may include an LED driver unit configured to provide independent electrical connection with each of the contact sections of the LED lamp. | 03-03-2011 |
| 20110050121 | LIGHT EMITTING DEVICE USING DIODE STRUCTURE CONTROLLED BY DOUBLE GATE, AND SEMICONDUCTOR APPARATUS INCLUDING THE SAME - A light emitting device is provided. The light emitting device includes a p-type semiconductor, an n-type semiconductor, a semiconductor film connected between the p-type semiconductor and the n-type semiconductor, a first electrode disposed on the semiconductor film and configured to apply an electric field to the semiconductor film, and a second electrode disposed under the semiconductor film and configured to apply an additional electric field to the semiconductor film. | 03-03-2011 |
| 20110050122 | COLOR ADJUSTABLE LAMP - A color adjustable lamp may be controlled using a well-known TRIAC dimmer circuit. The color adjustable lamp comprises two or more light sources. Each light source may output light having a different color. By setting an output intensity of each light source, light having a desired color may be output. | 03-03-2011 |
| 20110050123 | Inspection Lamp with Interchangeable Mount - An inspection lamp with interchangeable mount including a housing having a front and rear, at least one blue/ultraviolet LED for emitting light in a blue/ultraviolet wavelength range from the front of the housing, at least one white LED for emitting broad spectrum visible light from the front of the housing, a mounting apparatus for removably mounting the housing to a mounting fixture, the mounting apparatus including a lamp adapter, and a slot located in the rear of the housing for slidably receiving the lamp adapter. | 03-03-2011 |
| 20110050124 | Replaceable Illumination Module - A lighting system is presented that includes a replaceable illumination module removably coupled to a base module. The replaceable illumination module includes one or more solid state lighting elements on a printed circuit board electrically and thermally connected to the base module. The base module may include a heat sink, where the heat sink is in thermal contact with the replaceable illumination module, and dissipates heat generated by the one or more solid state lighting elements during operation of the lighting system. The replaceable illumination module may also include one or more beam conditioning elements for generating a specified beam. The lighting system may be connected to an automated control network and may be automatically controlled thereby, or may be used to control some other system. The heat sink may be generated via a dynamically controllable extrusion die. | 03-03-2011 |
| 20110050125 | MULTI-CHIP LIGHT EMITTING DEVICE LAMPS FOR PROVIDING HIGH-CRI WARM WHITE LIGHT AND LIGHT FIXTURES INCLUDING THE SAME - A multi-chip lighting emitting device (LED) lamp for providing white light includes a submount including first and second die mounting regions thereon. A first LED chip is mounted on the first die mounting region, and a second LED chip is mounted on the second die mounting region. The LED lamp is configured to emit light having a spectral distribution including at least four different color peaks to provide the white light. For example, a first conversion material may at least partially cover the first LED chip, and may be configured to absorb at least some of the light of the first color and re-emit light of a third color. In addition, a second conversion material may at least partially cover the first and/or second LED chips, and may be configured to absorb at least some of the light of the first and/or second colors and re-emit light of a fourth color. Related light fixtures and methods are also disclosed. | 03-03-2011 |
| 20110050126 | WAVELENGTH CONVERTING SYSTEM - An embodiment of the invention discloses a wavelength converting system. The wavelength converting system comprises: a wavelength converter having a first area and a second area; a first light source disposed under the first area and inducing a first mixed light being visible above the first area; a second light source disposed under the second area and inducing a second mixed light being visible above the second area; and a carrier supporting the first light source and the second light source. The first light source and the second light source have a dominant wavelength difference of 1 nm˜20 nm, and the first mixed light and the second mixed light have a color temperature difference less than 100K. | 03-03-2011 |
| 20110050127 | LIGHTING DEVICE - A lighting device ( | 03-03-2011 |
| 20110057579 | ILLUMINATION DEVICE - An illumination device includes a light source module consisting of a substrate and a plurality of light emitting elements on the substrate in an array and an optical module array consisting of a plurality of optical modules covering the light emitting elements. Each optical module includes a first optical component and a second optical component. A first illumination distribution pattern is generated by light from the light emitting elements and modulated by the first optical components. A second illumination distribution pattern is generated by light from the light emitting elements and modulated by the second optical components. An illumination distribution pattern of the illumination device is superposition of the first illumination distribution pattern and the second illumination distribution pattern. | 03-10-2011 |
| 20110062886 | OPEN LOOP LED DRIVING CIRCUIT - The present invention discloses an open loop LED driving circuit, having a turn-on period and a turn-off period, the circuit comprising: a power stage, used to store a magnetic energy supplied from a voltage source during the turn-on period and deliver the magnetic energy to a set of LEDs during the turn-off period; and a control unit, having a turn-off period control terminal coupled to the voltage source, and a channel of which a first terminal is coupled to the power stage and a second terminal is coupled to a reference ground, wherein the channel is switched on at a time according to the voltage of the voltage source to determine the turn-off period. | 03-17-2011 |
| 20110062887 | DRIVING APPARATUS OF LIGHT EMITTING DIODE AND DRIVING METHOD THEREOF - A driving apparatus of a light emitting diode (LED) and a driving method thereof are provided. In the driving method, when the driving apparatus performs dimming and a duty cycle of a dimming signal is smaller than a predetermination value, outputting time of driving currents are equally allotted in a period, and a magnitude of each driving current is regulated correspondingly. When the driving apparatus performs dimming and the duty cycle of the dimming signal is equal to or greater than the predetermination value, the driving currents are simultaneously output in the period, and the magnitude of each driving current is regulated according to the dimming signal. Therefore, an audio noise and an electromagnetic interference caused by excessive variation of a sum of the driving currents are suppressed. | 03-17-2011 |
| 20110062888 | Energy saving extra-low voltage dimmer and security lighting system wherein fixture control is local to the illuminated area - Prior applications disclosed power supply transmission voltage resulting in reduced line losses, with further energy conservation via luminous intensity control (dimming) of lamp(s) including LEDs. Additionally, an invertible, convertable luminaire, and upgraded control module design (comparable to a computer mainframe) comprised of function components including, for example, a microcontroller with programmable CPU, multiple LED driver(s), multiple independent lamp control(s), variable ON time segmentation(s) and variable ramp speed(s), voice actuation (s), security system(s), battery charge component(s), voltage drop (current) limiter(s), protection, ammeter(s), volt and watt meter(s); and voids for optional modules including but not limited to: clock timer(s); photocell(s); motion detector(s) of various function(s); push button(s); programming and function display(s); microphone(s); wireless transmitter(s)/receiver(s); fiber optic interconnection(s); remote control(s); integration to personal computer(s) or other central control system(s); speaker(s); camera(s); irrigation control(s); luminaire mountable laser module(s) and beacon(s); battery array(s); transmission voltage double isolation for nominal | 03-17-2011 |
| 20110062889 | SOLID STATE LIGHTING SYSTEM AND A DRIVER INTEGRATED CIRCUIT FOR DRIVING LIGHT EMITTING SEMICONDUCTOR DEVICES - The present invention relates to a solid state lighting system comprising at least one light emitting semiconductor device (LEDstr), at least one driving means (LEDdr) for driving a predetermined current through the at least one light emitting semiconductor device (LEDstr). The lighting system furthermore comprises a first voltage supplying unit (PS | 03-17-2011 |
| 20110062890 | DRIVE CIRCUIT - The invention is directed to testing breakdown voltage characteristics of a plurality of output transistors in a batch in a drive circuit instead of measurement using probe needles. A drive circuit includes output transistors made of high breakdown voltage P-channel type MOS transistors, switching control circuits, output terminals, diodes and a control terminal on a semiconductor die. The diodes are made of high breakdown voltage P-channel type MOS transistors in which the source and gate are connected. The anodes of the diodes are connected to the drains of the corresponding output terminals, respectively. The cathodes of the diodes are commonly connected to the control terminal through a wiring. | 03-17-2011 |
| 20110062891 | LIGHT-EMITTING DEVICE - This disclosure discloses a light-emitting device comprising a substrate; and a plurality of rectifying units, comprising a first rectifying unit and a second rectifying unit, formed on the substrate for receiving and regulating an alternating current signal into a direct current signal. Each of the rectifying units comprises a contact layer and a schottky metal layer. The light-emitting device further comprises a plurality of light-emitting diodes receiving the direct current signal; and a first terminal provided on the substrate and covering the contact layer of the first rectifying unit and the schottky metal layer of the second rectifying unit. | 03-17-2011 |
| 20110068708 | LED Light Engine Apparatus - A light emitting diode (LED) light engine is provided for use in a light fixture to enable improved and efficient dissipation of heat generated in the light fixture. The light engine includes a circuit board that includes multiple LEDs for emitting light. The light engine includes a chassis that has a plurality of upper fins that extend upward from a central flanged portion to dissipate heat generated by the LEDs into the lighting fixture. The circuit board is mounted to a mounting surface on the chassis that is surrounded by a fin wall that depends from the central flanged portion. The chassis also has a plurality of lower fins that extend outward from an outer surface of the fin wall to dissipate heat out of the fixture and into the ambient air environment. | 03-24-2011 |
| 20110068709 | LIGHTING DEVICE, LIGHTING PANEL AND CIRCUIT BOARD THEREOF - A lighting device, a lighting panel and a circuit board thereof are provided. The circuit board comprises a substrate; a plurality of light sources disposed on the substrate and at least one circuit layer, being patterned onto the substrate to form a plurality of traces for electrically connecting the light sources. Therein, the circuit board is capable of being assembled with other circuit boards to construct the lighting panel. The lighting device is capable of having the lighting panel of a large size by assembling a plurality of the circuit boards and individually controlling each light source disposed on the lighting panel so as to provide the function of local dimming. | 03-24-2011 |
| 20110074312 | Wireless Remote Control System and Methods for Monitoring and Controlling Illuminating Devices - A system includes first and second illuminating devices respectively having different first and second identification numbers indicative of locations and/or serial numbers of the illuminating devices. A parameter of one of voltage, temperature, resistance, and power of a lighting unit of each illuminating device is detected. The parameter and the identification number of each illuminating are encoded into a packet. The second illuminating device receives the packet of the first illuminating device and sends the packets of the first and second illuminating devices to a control center. The control center decodes the packets and judges operational states of the illuminating devices based on the parameters detected. A control signal is sent by the control center to open or close or control brightness of at least one of the illuminating devices when at least one of the illuminated devices is judged as operating abnormally after judging the parameters detected. | 03-31-2011 |
| 20110074313 | APPARATUS, METHOD, AND SYSTEM FOR ROADWAY LIGHTING USING SOLID-STATE LIGHT SOURCES - Disclosed herein are apparatus, methods, and systems for illuminating roadways, paths, tunnels, bridges, and areas adjacent to such in a manner which minimizes glare and/or other adverse lighting effects commonly experienced by night-time drivers. According to aspects of the invention, horizontal and vertical aiming of a plurality of solid-state light sources permits projected light from a fixture to be tailored to roadway features (e.g., bends in the road) and in some cases, permits the mounting height of fixtures to be reduced which can make the envisioned system a cost-effective alternative to traditional roadway lighting. | 03-31-2011 |
| 20110080114 | Method and Apparatus for Attaching Polyhedron Cover to an Illuminator and Operating It - A method and a combination for assembling of an illuminator and a decorative cover made of polyhedron structure, imprinted with design motifs and/or used in restaurants and other service institutions for decoration and for commercial presentations including menus and listed service. | 04-07-2011 |
| 20110080115 | CONSTANT CURRENT CONTROL CIRCUIT WITH MULTIPLE OUTPUTS FOR LED DRIVER - A constant current control circuit with multiple outputs for a LED driver, the circuit including a single-output constant current power supply, and multiple output circuits, each output circuit comprising a current sharing circuit, a current sharing control circuit and a LED load. The LED load and the current sharing circuit are in series and form a series loop with a first terminal and a second terminal of the series loop connected to a first output terminal and a second output terminal of the constant current power supply. | 04-07-2011 |
| 20110084626 | TWO-WIRE DIMMER CIRCUIT FOR A SCREW-IN COMPACT FLUORESCENT LAMP - A dimmer switch for controlling the intensity of a dimmable screw-in compact fluorescent lamp provides smooth dimming of the fluorescent lamp and prevents flickering of the lamp due to multiple re-strikes. The dimmer switch prevents multiple re-strikes by avoiding multiple firings of a controllably conductive switching device of the dimmer circuit by limiting the high-end light intensity of the fluorescent lamp. Specifically, the dimmer switch limits the length of a conduction interval of the controllably conductive switching device to less than approximately 75% of each half-cycle. The dimmer switch may include a user-accessible adjustment actuator for changing the dimmer switch between an incandescent operating mode and a screw-in compact fluorescent mode. The dimmer switch may also be operable to automatically change the dimmer switch between the incandescent operating mode and the screw-in compact fluorescent mode by detecting the occurrence of the multiple firings of the controllably conductive switching device. | 04-14-2011 |
| 20110089858 | LOAD DRIVING CIRCUIT AND MULTI-LOAD FEEDBACK CIRCUIT - A load driving circuit and a multi-load feedback circuit are disclosed. The load driving circuit and the multi-load feedback circuit are adapted to drive an LED module comprising a current balancing circuit for balancing the current flowing through LEDs. The load driving circuit and the multi-load feedback circuit modulate the electric power transmitted by the LED driving apparatus to an LED module according to voltage level(s) of one or more current balancing terminals having insufficient voltage in the current balancing circuit, so the voltage levels of the current balancing terminals are higher than or equal to a predetermined voltage level, further increasing the efficiency thereof. | 04-21-2011 |
| 20110089859 | CURRENT-TYPE DRIVER OF LIGHT EMITTING DEVICES - A current-type driver of light emitting devices is provided. The current-type driver includes a power conversion circuit, a feedback module, and a control module. The power conversion circuit modulates and generates an output voltage according to a feedback signal so as to sequentially drive a plurality of light emitting devices. The feedback module generates the feedback signal for the power conversion circuit according to the output voltage and an adjusting signal during a first period, wherein none of the light emitting devices is driven during the first period. The control module outputs the adjusting signal to the feedback module during the first period so as to allow the power conversion circuit to adjust the output voltage to a pre-drive voltage corresponding to the light emitting device which is to be driven next among the light emitting devices. | 04-21-2011 |
| 20110089860 | FLAT DISPLAY, BACKLIGHT MODULE AND DRIVING METHOD THEREOF - A flat display used for displaying a 2D image and a 3D image is provided. The flat display includes a panel and a backlight module. The backlight module provides a light to the panel. When the flat display displays the 2D image, the backlight module provides a first light intensity to the panel. When the flat display displays the 3D image, the backlight module provides a second light intensity to the panel. The second light intensity is higher than the first light intensity. | 04-21-2011 |
| 20110089861 | Mechanical Interface For Glass Bulb For Use in Solid State Light Source Retrofit Lamps - A mechanical interface for a glass bulb is provided. The mechanical interface includes a connector and an optical mount. The connector is in contact with the glass bulb. The connector may be a separate component attached to the glass bulb, or may be a continuous part of the glass bulb, such that the connector is itself made of glass. The optical mount is configured to receive the connector. In so receiving, the optical mount operatively couples with the connector so as to secure the glass bulb in a position. The optical mount is also configured to attach to a lamp housing. A solid state light source retrofit lamp may thus be formed of a lamp housing including a solid state light source light engine and its required components, a glass bulb, and a mechanical interface for the glass bulb. | 04-21-2011 |
| 20110089862 | ORGANIC LIGHT EMITTING DIODE DRIVER ARRANGEMENT - Driver arrangements ( | 04-21-2011 |
| 20110089863 | DISPLAY-USE LIGHTING DEVICE AND DISPLAY APPARATUS - A display-use lighting device and display apparatus are provided. The display-use lighting device is provided with a light device which is provided with visible light emitting devices and ultraviolet light emitting devices and a control unit. The control unit performs control to make the visible light emitting devices emit light, gradually increase a light emitting intensity, then gradually decrease this light emitting intensity and extinguish the light, then make the ultraviolet light emitting devices emit light, gradually increase a light emitting intensity, then gradually decrease this light emitting intensity and extinguish the light, and alternately periodically repeats the light emitting operations of the visible light emitting devices and the light emitting operations of the ultraviolet light emitting devices. The visible light emission and the ultraviolet light emission are alternately periodically repeated. | 04-21-2011 |
| 20110095702 | STACKED ORGANIC LIGHT-EMITTING DEVICE - A stacked organic light-emitting device is provided. The stacked organic light-emitting device includes a first electrode, first and second light-emitting units formed under and on the first electrode respectively, transparent or semi-transparent second and third electrodes formed under the first light-emitting unit and on the second light-emitting unit respectively, and having the same polarity, and a drive controller electrically connected with the first, second and third electrodes to connect the first and second light-emitting units in parallel, and capable of controlling at least one of the first and second light-emitting units to emit light. Accordingly, the organic light-emitting device has a lower driving voltage than a conventional stacked light-emitting device in which light-emitting units are serially connected. | 04-28-2011 |
| 20110095703 | APPARATUS AND METHOD FOR LED LIGHT CONTROL - An illumination apparatus comprises a plurality of LEDs and a control system connected to receive dimmer-modulated AC line voltage and control the LEDs. The control system is configured to operate in a plurality of different modes wherein changes in dimmer-modulated AC line voltage adjust various characteristic of the LEDs. | 04-28-2011 |
| 20110095704 | POWER SUPPLIES FOR LED LIGHT FIXTURES - A lighting circuit comprises an AC input connectable to receive an AC input voltage, a switched LED array comprising a plurality of LEDs reconfigurable into a plurality of configurations and having an input for receiving a LED driving voltage, a switched capacitor array having an input for receiving a charging voltage and an output selectively connectable to the input of the switched LED array and comprising a plurality of capacitors and switches connected to selectively couple the capacitors across the input or output, a first switched rectifier connected between the AC input and the switched LED array, a second switched rectifier connected between the AC input and the switched capacitor array, and, a control system configured to monitor the AC input voltage and control the switched LED array, the switched capacitor array and the first and second switched rectifiers based on the AC input voltage and a desired light output. | 04-28-2011 |
| 20110095705 | FILTER DEVICE - A filter device ( | 04-28-2011 |
| 20110095706 | LIGHT FITTING AND CONTROL METHOD - A light fitting comprises at least one replaceable module ( | 04-28-2011 |
| 20110101884 | MULTI-STAGE POWER SUPPLY - There is provided a multi-stage power supply. A multi-stage power supply according to an aspect of the invention may include: a voltage converter circuit section including a plurality of first to n-th DC/DC converters connected in series between an input terminal and an output terminal, in order to supply a DC driving voltage to an LED array having a plurality of LEDs therein; a voltage detection section detecting an output voltage from the voltage converter circuit section; and a PWM control section generating a PWM control signal on the basis of a first detection voltage from the voltage detection section, a second detection voltage obtained by detecting current flowing through the LED array, and a third detection voltage obtained by detecting a current waveform flowing through an internal switch of the n-th DC/DC converter, and supplying the PWM control signal to each of the first through n-th DC/DC converters. | 05-05-2011 |
| 20110101885 | LED BACKLIGHT CIRCUIT FOR LCD PANELS - An LED backlight circuit includes a transformer that takes a high voltage from a high voltage bus on a first winding. Current induced on a second winding of the transformer charges an energy storage capacitor. Energy stored in the energy storage capacitor drives a single string of series-connected LEDs to provide backlighting to an LCD panel. The high voltage may be taken directly off an output of a power factor correction circuit. | 05-05-2011 |
| 20110109242 | Bulb set structure - A bulb set structure comprises a plug having two guiding pieces to connect with a power source and to assemble with a LED bulb set and a fitter, an orifice to output alternating current, and a power converting unit having one end to electrically connect with the guiding pieces, and having another end to connect with wires of the LED bulb set and the fitter by using the joining segment to convert the alternating current into direct current, and a circuit board is used to rectify the alternating current to output direct current to emit LED bulb set and to transmit the alternating current to the fitter. | 05-12-2011 |
| 20110109243 | CIRCUIT AND METHOD OF DRIVING LIGHT EMITTING DIODES, AND LIGHT EMITTING DIODE SYSTEM HAVING THE SAME - A light-emitting-diode driving circuit includes a current driving circuit configured to control current signals flowing through light-emitting-diode strings in response to a first signal that includes information of a light-emitting-diode current, a dynamic headroom controller configured to generate a third control signal that changes according to a change of the current signals flowing through the light-emitting-diode strings based on voltage signals of first terminals of each of the light-emitting-diode strings and a second control signal that includes the information of the light-emitting-diode current, and a power supply circuit configured to generate a light-emitting-diode driving voltage that changes in response to the third control signal, and provide the light-emitting-diode driving voltage to second terminals of each of the light-emitting-diode strings. | 05-12-2011 |
| 20110109244 | ARCHITECTURE FOR HIGH POWER FACTOR AND LOW HARMONIC DISTORTION LED LIGHTING - Exemplary apparatus and associated methods involve a bypass module for modulating conductivity of one or more current paths to provide a first set of LEDs that are conducting near minimum output illumination and having a larger conduction angle than that of a second set of LEDs that conduct at a maximum output illumination. In an illustrative example, the conductivity of a bypass path in parallel with a portion of the second set of LEDs may be reduced while the AC input excitation is above a predetermined threshold voltage or current. The bypass path may be operated to provide a reduced effective turn-on voltage while the input excitation is below the predetermined threshold. For a given maximum output illumination at a maximum input excitation, the bypass module may control current through selected LEDs to construct an input current waveform with substantially improved power factor and reduced harmonic distortion. | 05-12-2011 |
| 20110109245 | CIRCUITS AND METHODS FOR DRIVING LIGHT SOURCES - In one embodiment, a driving circuit includes an AC/DC converter which converts an AC voltage to a DC voltage and a DC/DC linear regulator which regulates a current through, e.g., an LED light source, according to a first current reference if a monitoring signal indicating the DC voltage is within a predetermined range, and regulates the current according to a second current reference less than the first current reference if the monitoring signal is beyond the predetermined range. In another embodiment, a controller controlling power to an LED light source turns on a first plurality of LEDs and turns off a second plurality of LEDs if a monitoring signal indicative of a DC voltage received by the LED light source is within a predetermined range, and turns on both first and second plurality of LEDs if the monitoring signal is beyond the predetermined range. | 05-12-2011 |
| 20110109246 | CIRCUIT CONFIGURATION AND METHOD FOR OPERATING AT LEAST ONE FIRST AND ONE SECOND LED - A circuit configuration may include an operational amplifier having a plus and a minus input and an output; and a current sensing resistor, whereby the voltage drop across the resistor is coupled to the minus input; a first transistor having a control electrode, a reference electrode and a working electrode, the working-reference electrode path of which is coupled in series to a first and second connection for a first LED between a connection for a supply voltage and the reference potential; a second transistor having a control electrode, a reference electrode and a working electrode, the working-reference electrode path of which is coupled in series to a first and second connection for a second LED between a connection for a supply voltage and the reference potential; a first switch and a second switch coupled in series between the output and the control electrode of the first and second transistor, respectively. | 05-12-2011 |
| 20110109247 | SWITCHED MODE POWER CONVERTER AND METHOD OF OPERATING THE SAME - A switched mode power converter is disclosed, together with a method for operating the same. The power converter is adapted to be operable in the boundary conduction mode, and operation is interruptible in the absence of any load requirement. | 05-12-2011 |
| 20110115405 | ILLUMINATION CIRCUIT HAVING BYPASS CIRCUIT CONTROLLABLE ACCORDING TO VOLTAGE CHANGE OF SERIES CIRCUIT THEREOF - An illumination circuit includes a series circuit including light sources connected in series between a high voltage node and a low voltage node, and break-protecting circuits. Each break-protecting circuit includes a control circuit and a bypass circuit. The bypass circuit is connected in parallel to at least one corresponding light source of the light sources. The control circuit is connected to the series circuit and the bypass circuit to detect a voltage change of the series circuit and control the bypass circuit to be in a conduct state or a blocked state according to the voltage change | 05-19-2011 |
| 20110115406 | HIGH CRI WHITE LIGHT EMITTING DEVICES AND DRIVE CIRCUITRY - A high CRI white light emitting device comprises: a blue solid state light emitter (LED) operable to generate blue light; a phosphor material operable to absorb a portion of the blue light and to emit green/yellow light and a red solid state light emitter (LED) operable to generate red light. The emission product of the device comprises the combined light generated by the blue and red LEDs and green/yellow light generated by the phosphor material and appears white in color. The device further comprises a drive circuit operable to compensate for variation in the ratio (relative contribution) of red to blue light in the emission product such as to ensure that said variation is less than 20% over an operating temperature range of at least 25° C. The drive circuit can reduce variation in the CRI and CCT of the device's emission product over the operating temperature range. | 05-19-2011 |
| 20110115407 | SIMPLIFIED CONTROL OF COLOR TEMPERATURE FOR GENERAL PURPOSE LIGHTING - A lighting system includes at least first and second light sources providing first and second colors of light. Control circuitry is operatively coupled to the first and second light sources, and is configured to control the first and second light sources relative to one another to provide a color point that is linearly controlled to approximate a non-linear target lighting behavior in the CIE 1931 color space. | 05-19-2011 |
| 20110115408 | LONG LIFE POWER SUPPLY - An LED driver for at least one light emitting diode including an input for receiving an input voltage, an output comprising at least one light emitting diode, a current limiting loop for regulating an output current supplied to the at least one light emitting diode, a voltage control loop for monitoring a feedback voltage from the at least one light emitting diode, and a junction including a first diode for closing the current limiting loop and a second diode for closing the voltage control loop, wherein the junction enables the voltage control loop to communicate with the current limiting loop such that the feedback voltage is taken into account by the current limiting loop in regulating the out current. | 05-19-2011 |
| 20110121753 | ORGANIC ELECTROLUMINESCENCE DISPLAY APPARATUS - The present invention provides a stack type organic electroluminescence display apparatus which can be structured to be an active matrix type. The organic electroluminescence display apparatus of the active-matrix driving system includes: a display region having a plurality of pixels each of which includes at least two subpixels, wherein the subpixels have three or more light-emitting devices stacked thereon each of which is configured by sandwiching between electrodes an organic layer including an emission layer, and any of the emission layers emits a light of different colors from each other and is commonly formed in all pixels; and a circuit for applying voltage to between the electrodes of the light-emitting device, wherein at least one light-emitting device among the stacked light-emitting devices is nonemission-treated. | 05-26-2011 |
| 20110121754 | Adaptive Current Regulation for Solid State Lighting - Exemplary embodiments provide an apparatus, system and method for power conversion to provide power to solid state lighting, and which may be coupled to a first switch, such as a dimmer switch. An exemplary system comprises: a switching power supply; solid state lighting; a first adaptive interface circuit to provide a resistive impedance to the first switch and conduct current from the first switch in a default mode; and a second adaptive interface circuit to create a resonant process. An exemplary apparatus comprises: a switching power supply; and an adaptive interface circuit comprising a resistive impedance coupled in series to a reactive impedance to conduct current from the first switch in a first current path in a default mode, and further comprising a second switch coupled to the reactive impedance to conduct current from the first switch in a second current path, with the adaptive interface circuit further damping oscillation when the first switch turns on. | 05-26-2011 |
| 20110121755 | METHOD OF CONTROLLING SUPPLY VOLTAGE, MULTI-CHANNEL LIGHT-EMITTING DIODE DRIVING CIRCUIT AND MULTI-CHANNEL SYSTEM USING THE SAME - Provided is a multi-channel LED driving circuit which includes: an LED array of N LED channels (N is an integer equal to or greater than one), each channel having a plurality of LEDs connected in series, a supply voltage being input to one end of each channel, and the other end of each channel being connected to N current drivers, respectively; a dynamic headroom control block comparing N channel voltages of common nodes of the N LED channels and the N current drivers with combination voltages of a first reference voltage and a hysteresis voltage, and generating a second reference voltage in response to at least one dimming signal that defines a time period during which a predetermined current flows to the N current drivers through the N LED channels; and a direct current to direct current (DC-DC) converter generating the supply voltage corresponding to the second reference voltage. | 05-26-2011 |
| 20110121756 | Fluorescent Light Fixture Assembly with LED Lighting Element and Converter Modules - The present invention is directed to a fluorescent light fixture assembly including a ballast and a novel lighting element that includes an array of LEDs and at least one converter module that enables the existing ballast providing an AC power input to supply DC power to the LED array. The lighting element includes a body that contains the LED array and the converter modules and shares the configuration of the lighting element that is to be retrofitted. The lighting element receives power from the pre-existing ballast, wherein the converter module provides a constant current source to power the LED array. Thus, the lighting element, including the converter module, replaces the conventional fluorescent light tube in a cost-effective retrofit manner with the existing ballast. | 05-26-2011 |
| 20110121757 | CONTROLLER FOR CONTROLLING AN LED ASSEMBLY, LIGHTING APPLICATION AND METHOD FOR CONTROLLING AN LED ASSEMBLY - A controller for controlling an LED assembly is described. The controller is arranged to—receive an input signal representing a required characteristic of the LED assembly,—convert the input signal to a control signal for the LED assembly,—apply a correction to the control signal to obtain a corrected control signal, the correction being based on a predetermined transient characteristic of the LED assembly,—output the corrected control signal. As such, a better correspondence between a required characteristic and an actual characteristic of the LED assembly is obtained. | 05-26-2011 |
| 20110121758 | TUNABLE WHITE POINT LIGHT SOURCE USING A WAVELENGTH CONVERTING ELEMENT - A uniform high brightness light source is provided using a plurality of light emitting diode (LED) chips with slightly different pump wavelengths with a wavelength converting element that includes at least two different wavelength converting materials that convert the light to different colors of light. The intensity of the light produced by the LED chips may be varied to provide a tunable CCT white point. The wavelength converting element may be, e.g., a stack or mixture of phosphor or luminescent ceramics. Moreover, the manufacturing process of the light source is simplified because the LED chips are all manufactured using the same technology eliminating the need to manufacture different types of chips. | 05-26-2011 |
| 20110127927 | Buck-Store and Boost-Restore Converter - A buck-store and boost-restore converter is to be electrically connected to a pre-stage circuit, which provides a pre-stage output direct current (DC) voltage to a first capacitive load. The converter has an inductance element and is to be electrically connected to a second capacitive load. When the pre-stage output DC voltage is reduced from a first DC voltage to a second DC voltage, the inductance element outputs a current to the second capacitive load so as to transfer electric energy, which is stored in the first capacitive load, to the second capacitive load. When the pre-stage output DC voltage is raised from the second DC voltage to the first DC voltage, the inductance element outputs a current to the first capacitive load so as to transfer electric energy, which is stored in the second capacitive load, to the first capacitive load. | 06-02-2011 |
| 20110133667 | CONTROL BOX FOR A CHRISTMAS LIGHT STRING - A control box for a Christmas light string is connected between a plug and a light string. The control box has a harmonic reducing element, an AC/DC converting circuit, a driving circuit and multiple switches. The AC/DC converting circuit converts AC power to DC power. The driving circuit outputs controls signals to turn on or off the switches, whereby light units of the light string are correspondingly activated or deactivated by the switches. The harmonic reducing element is connected between the plug and the AC/DC converting circuit to reduce or eliminate harmonics resulted from the operations of the switches. Therefore, the AC power input to the control box is prevented form being interfered by the harmonics to ensure the light string operates normally. | 06-09-2011 |
| 20110133668 | SOLID STATE LIGHTING SYSTEM - A solid state lighting system includes an electronic driver having a power input configured to receive power from a power source and the electronic driver having a power output. The electronic driver controls the power supply to the power output according to a control protocol, and the electronic driver has at least one expansion port having a separable interface. The system also includes a light emitting diode (LED) subassembly having an LED board having at least one LED that receives power from the power output of the electronic driver to power the LED. The system further includes a first expansion module configured to be coupled to the at least one expansion port of the electronic driver having a first functionality affecting the control protocol, and a second expansion module configured to be coupled to the at least one expansion port of the electronic driver having a second functionality affecting the control protocol. The first and second expansion modules are selectively coupled to the at least one expansion port to change the control protocol. | 06-09-2011 |
| 20110133669 | LIGHT EMITTING DIODE DRIVING DEVICE - A light emitting diode (LED) driving device for driving a plurality of LED strings includes a power stage circuit, a plurality of fly-back transformers, and a controller circuit. The power stage circuit outputs direct current (DC) voltage signals. Each of the plurality of fly-back transformers includes a primary winding connected to the power stage circuit and a secondary winding connected to a diode and one of the plurality of LED strings to form a series loop. The controller circuit controls the plurality of fly-back transformers to synchronously work in a discontinuous current mode to make the plurality of LED strings have the same current. | 06-09-2011 |
| 20110133670 | Street lamp capable of adjusting illuminating range thereof and having LEDs as light source - A street lamp capable of adjusting illuminating range thereof and having LEDs as its light source is provided. The street lamp comprises: a main supporting member; a substrate, one end of the substrate being pivotally fixed to the main supporting member by a first fastening member, and an LED light source being provided on the surface opposite to the main supporting member; and an adjusting member provided between the main supporting member and the substrate, one end of the adjusting member being pivotally fixed to the main supporting member by a second fastening member, wherein a fixing member for adjusting the angle of the substrate to adjust the illuminating angle is provided between the substrate and the adjusting member when the first fastening member and the second fastening member are pivotally movable. | 06-09-2011 |
| 20110133671 | TRACK LIGHTING SYSTEM CURRENT LIMITING DEVICE - A current limiting system in accordance with the present invention comprises an accessory or canopy mount device that is permanently installed between a source of electrical power | 06-09-2011 |
| 20110133672 | LIGHTING DEVICE WITH DYNAMIC LIGHT EFFECTS - The invention provides a lighting device comprising a housing. The housing comprises visible-light sources ( | 06-09-2011 |
| 20110148320 | CONTROL SYSTEM FOR MULTIPLE LIGHT SOURCES - An exemplary control system for multiple light sources includes a clock circuit, a frequency dividing circuit, a recombining circuit, a power control circuit, and a triggering circuit. The clock circuit is configured to output a plurality of clock signals. The frequency dividing circuit is configured to divide the frequency of the clock signals to get a number of reference clock signals. The recombining circuit is configured to recombine the reference clock signals to get a plurality of timing signals. The power control circuit is configured to output electrical power to the multiple light sources according to the timing signals. The triggering circuit is configured to power on the light sources according to a received command. | 06-23-2011 |
| 20110148321 | LIGHTING APPARATUS - A lighting apparatus is disclosed. The lighting apparatus is configured such that a light-emitting unit is cooled through movement of air ionized by corona discharge, rather than using a fan that generates noise, resulting in reduced operational noise. | 06-23-2011 |
| 20110148322 | ILLUMINATING DEVICE - To a constant-current power supply whose output current can be variably set, light emitting modules can be connected in parallel. A control unit recognizes connection information outputted from an information output unit provided in each of the light emitting modules and varies the output current of the constant-current power supply. Drive can be controlled in response to a state of the connected light emitting modules such as the connecting number of light emitting modules. | 06-23-2011 |
| 20110156613 | LIGHTING APPARATUS - According to one embodiment, a lighting apparatus includes a conductive main body at a ground potential, a light-emitting device in the main body, and a lighting control device configured to supply power to the light-emitting device. The light-emitting device includes a substrate including an insulation layer, and a radiation layer with a thermal conductivity, formed of conductive material and laminated on the insulation layer, a plurality of light-emitting elements mounted on the radiation layer, and a power supply wiring configured to electrically connect the light-emitting elements and to make the radiation layer electrically nonconductive. | 06-30-2011 |
| 20110156614 | CIRCUIT AND METHOD FOR DIMMING A LUMINOUS ELEMENT - In various embodiments, a circuit for dimming at least one luminous element is provided. The circuit may include at least two switching inputs and an N-connection, wherein on the basis of a switching combination of the switching inputs the at least one luminous element is dimmable, wherein as a function of a voltage shape across the N-connection the at least one luminous element is dimmable. | 06-30-2011 |
| 20110163688 | LED SIDE MARKER LAMP - A light emitting diode (LED) side marker lamp, comprising a punching panel with a coating, a water-proof light source module, and a through hole. The water-proof light source module is disposed below the punching panel, and the through hole is disposed on the punching panel and operates to allow light to be emitted from the water-proof light source module. A traditional cover is not needed, and the punching panel is used to replace the cover and colors thereof match with those of buildings, which improves decoration effect of the invention; secondly, as the LED side marker lamp fails, only the water-proof light source module needs to be replaced, which is convenient for maintenance and reduces cost; finally, the number of light source modules can be varied, which is flexible in use. | 07-07-2011 |
| 20110163689 | METHOD OF DRIVING A LIGHT SOURCE AND LIGHT SOURCE APPARATUS FOR PERFORMING THE METHOD - A light source apparatus includes a light source disposed adjacent to a side portion of a light guide plate and a light source driver driving the light source. The light source driver includes a booster and a protecting circuit. The booster boosts an input voltage to a driving voltage for driving the light source. The protecting circuit selectively cuts off the input voltage applied to the booster according to an output current of the booster, reducing the risk of damage to the driver due to shorts, overcurrents, or the like. | 07-07-2011 |
| 20110163690 | LED CONTROL DEVICE FOR A VEHICLE LIGHT - The invention relates to a device for controlling diode lamps comprising
| 07-07-2011 |
| 20110169420 | Circuit Arrangement and Method for Driving an Electrical Load - A circuit arrangement for driving an electrical load comprises a connection node (LED) for connecting the electrical load and a control device (Ctrl) that is coupled to the connection node (LED) to drive the electrical load. A detection circuit (Det) is coupled to the connection node (LED) for detecting a trigger signal (trig) at the connection node (LED) and coupled to the control device (Ctrl) via a measurement channel (Mes). | 07-14-2011 |
| 20110169421 | METHOD AND APPARATUS FOR PROVIDING ILLUMINATION WITH A PULSE-CONTROLLED LIGHT EMITTING DIODE SOURCE - An array of LEDs includes first and second rows of LEDs. The LEDs emit light at red, green, and blue wavelengths parallel to an output port, and the light is re-directed by a light reflecting material from directions parallel to the output port toward the output port. The first and second rows are parallel to each other, and the LEDs are powered by pulse width modulated signals that establish a brightness of the LEDs. | 07-14-2011 |
| 20110175544 | Multifunctional Illuminating Lamp - A multifunction illumination lamp is provided. The multifunction illuminating lamp includes a body, an illuminating device, and a charging device. The illuminating device includes a plurality of LED units. Each LED unit includes red (R), green (G), and blue (B) color light emitting diodes (LED). The circuit controller controls currents flowing through the R, G, B LEDs, so as to control luminances of the R, G, B LEDs, and the controlled luminances of the R, G, B LEDs are adapted for mixing to achieve different color gamut. The charging device includes a transmitter and a receiver. When connected with a power supply, the transmitter generates an energy beam. The receiver is independent from the body and being adapted for constructing a circuit loop with an external electronic apparatus. The receiver transforms the received energy beam into electric energy and charges the electric energy into the electronic apparatus. | 07-21-2011 |
| 20110175545 | MULTIDIRECTIONAL LIGHT EMITTING FIXTURE - Lighting fixtures, apparatuses, methods, systems, computer readable media and other means are provided for a scalable light fixture design that allows a lighting manufacture to easily create custom multidirectional lighting fixtures. The approach may be easily modified and adjusted without departing from the general design and without incurring the otherwise larger redesigning costs often associated with the creation of light fixtures customized for a particular lighting design application. | 07-21-2011 |
| 20110175546 | PHOSPHOR-CENTRIC CONTROL OF COLOR CHARACTERISTIC OF WHITE LIGHT - Lighting systems and devices offer dynamic control or tuning of a color characteristic, e.g. color temperature, of white light. The exemplary lighting systems and devices are used for general lighting applications that utilize solid state sources to pump remotely deployed phosphors. Two or more phosphors emit visible light of different visible spectra, and these spectra are somewhat broad, e.g. pastel, so that combinations thereof can approach white light temperatures including points along the black body curve. Independent adjustment of the intensities of electromagnetic energy emitted by the solid state sources adjusts levels of excitations of the phosphors, in order to control a color characteristic of the visible white light output of the lighting system or device. | 07-21-2011 |
| 20110175547 | BACKLIGHT UNIT, DRIVING METHOD THEREOF, AND ERROR DETECTION METHOD THEREOF - A backlight unit includes a driving circuit, a plurality of light source strings, and an error detector. The driving circuit outputs a driving voltage. Each of the light source strings includes a plurality of light sources and receives the driving voltage through input terminals of the light source strings to generate a light. The error detector is connected to output terminals of the light source strings and senses voltages between the input terminals and the output terminals of the light source strings to detect an error in the light sources using a first voltage and a second voltage. The first voltage is a voltage difference between a maximum and a minimum of the sensed voltages and the second voltage is obtained by dividing one sensed voltage of the sensed voltages by a number of the light sources of a light source string from which the one sensed voltage is sensed. | 07-21-2011 |
| 20110175548 | LIGHTING APPARATUS - According to one embodiment, a lighting apparatus includes a conductive main body at a ground potential, a light-emitting device in the main body, including an insulative substrate, a plurality of light-emitting elements mounted on a front side of the substrate, a power feeding wiring electrically connecting the light-emitting elements, and a conductor layer on a backside of the substrate, electrically connected to the power feeding wiring at a potential higher than a ground potential, and a lighting control device configured to supply power to the light-emitting device. | 07-21-2011 |
| 20110175549 | LINEAR LIGHT SOURCE AND ELECTRONIC APPARATUS - A linear light source ( | 07-21-2011 |
| 20110181200 | POWER AND DATA TRACK LIGHTING SYSTEM - A combined power and data track lighting system includes an elongated track, having a number of longitudinal guide ways, for attachment to a support surface, as well as a number of current carrying conductors arranged within at least some of the guide ways. The first of these conductors are power conductors and the second conductors are data conductors, the conductors being electrically isolated from each other. The lighting system further contains a first adapter for connection to source of electrical power for the power conductors, and a second adapter for connection to a source of control data. There is at least one LED luminaire present in the system, and this luminaire contains a number of LEDs, each of which, when energized, generates a single color out of a discrete plurality of colors. A data converter converts data along the data lines to control the currents in the individual groups of color LEDs, so that they create a desired composite color. Further, at least electrically, the LED luminaire is electrically connected to the power conductors and data conductors located in the lighting track. Likewise, at least one each of a Quartz luminaire, Metal-Halide luminaire, Digital Light Processor (DLP) automated computer luminaire, Liquid Crystal Display (LCD) automated computer luminaire, and DMX controlled device can be used in the present system including support trusses. The main control data will be Remote Device Management RDM supplied by an external controller applied to the data conductors of the combined power and data track lighting system. | 07-28-2011 |
| 20110181201 | LED Display System and Method for Use with an Audio System - The light-emitting diode (LED) display system and method are provided. A LED display structure houses a quantity of LEDs. A control unit is in communication with the LED display structure. An audio output system supplies at least one audio signal to the control unit, wherein the control unit processes the at least one audio signal and transmits at least one processed audio signal to the LED display structure. A quantity of light is emitted from at least a portion of the quantity of LEDs is based on the at least one processed audio signal. A selection device is in communication with the control unit and controlling selection of at least one display mode of the LED display structure. At least one power supply supplies a quantity of voltage to at least one of the LED display structure, the audio output system, the control unit and the selection device. | 07-28-2011 |
| 20110187284 | APPARATUS AND METHOD CAPABLE OF CHANGING ILLUMINATION REGION - An apparatus capable of changing a size of illumination region is disclosed. The apparatus comprises a first optical unit, a second optical unit, a first driving element, and a second driving element. The first optical unit is composed of a first LED and a first optical element. The second optical unit is composed of a second LED and a second optical element. The driving elements selectively provide different driving currents to different LEDs for changing the luminance of the illumination field. A first illumination region can be formed when the first and second driving elements respectively provide the first and second driving currents to the first and second LEDs. A second illumination region can be formed when the first and second driving elements respectively provide the third and fourth driving currents to the first and second LEDs. The first illumination region is different from the second illumination region. | 08-04-2011 |
| 20110187285 | OLED LIGHTING DEVICE WITH TAG ELEMENT - The invention relates to an organic light emitting diode (OLED) device ( | 08-04-2011 |
| 20110193492 | LIGHT-EMITTING DIODE LIGHTING DEVICE - A light-emitting diode (LED) lighting device includes at least a base, at least an LED light source, and at least a driver. The LED light source is of a rectangular parallelepiped form and is directly mounted to and packaged on an outer surface of the base. The driver is electrically connected to the LED light source for driving the LED light source to emit light. | 08-11-2011 |
| 20110193493 | LIGHT EMITTING DIODE LIGHTING APPARATUS - A light emitting diode (LED) lighting apparatus is provided. The LED lighting apparatus includes a first LED unit and a rectification circuit. The rectification circuit includes a second LED unit. The first LED unit is disposed on a direct current (DC) path. The first LED unit can be used to emit a first light. The rectification circuit is coupled to an alternating current (AC) power source and the first LED unit. The rectification circuit can be used to provide a DC power signal to the DC path. The second LED unit is disposed on a first AC path and coupled between the AC power source and the DC path. The second LED unit can be used to emit a second light to mix the first light for generating a third light. | 08-11-2011 |
| 20110199018 | Current mirror circuit - The present invention provides a current mirror circuit for matching current between two LEDs. The current mirror circuit includes a first sub-circuit, including a first transistor, a second transistor, and a first OPAMP, and a second sub-circuit including a third transistor, a fourth transistor, and a second OPAMP. The first sub-circuit is connected to a first LED and the second sub-circuit is connected to a second LED. The current mirror circuit also includes four switches which continuously switch the currents flowing through the first LED and the second LED to maintain a same average current through both the LEDs. This way, better current matching is achieved than possible using conventional current mirror circuits. The frequency of switching of currents is kept above the flicker perception of human eye, so that a person viewing the LEDs is unable to detect any changes in the illumination of the LEDs. | 08-18-2011 |
| 20110199019 | COLOR CONTROL OF LIGHT EMITTING DEVICES AND APPLICATIONS THEREOF - The present invention, in one aspect, provides light emitting devices comprising LEDs, the light emitting devices, in some embodiments, having a simplified architecture for controlling the color of emitted light. | 08-18-2011 |
| 20110199020 | METHODS OF COMMISSIONING LIGHTING SYSTEMS - A method of commissioning a lighting system is disclosed. A user is provided with a pointing device capable of emitting or returning a signal which can be received by detectors co-located with each fixture in the lighting system. The user can add a fixture to a group by aiming the pointing device at the fixture when the fixture is not assigned to the group, and the user can remove a fixture from a group in the same way when the fixture was previously assigned to the group. This commissioning method can be used with a lighting system comprising a central control unit and a plurality of fixtures comprising luminaires, optional control devices, and optional standalone sensors, wherein each fixture includes a co-located sensor capable of receiving the signal emitted by the pointing device, and a central control unit which can communicate bidirectionally with each fixture. Additional user gestures are disclosed together with methods for the central control unit to acknowledge gestures. Additional communications methods among components of the lighting system are also disclosed. | 08-18-2011 |
| 20110199021 | LIGHT-EMITTING DEVICE AND LIGHTING APPARATUS PROVIDED WITH THE SAME - According to one embodiment, a light-emitting device includes a substrate including an insulating surface, a plurality of light-emitting elements mounted on the surface of the substrate and electrically connected to each other, a positive power feeding conductor and a negative power feeding conductor mounted on the surface of the substrate to feed power to the light-emitting elements, lead-out terminals leading from the power feeding conductors, to the outside of an mounting area of the light-emitting elements, and an anti-noise part connected to the lead-out terminals and arranged outside the mounting area. | 08-18-2011 |
| 20110204816 | METHODS AND SYSTEMS FOR MINIMIZING LIGHT SOURCE POWER SUPPLY COMPATIBILITY ISSUES - Systems and methods for allowing replacement of updated light heads with different design parameters to become independent of the remote power supply. An exemplary light system includes a light head remote from a power supply component. The light head includes one or more light-emitting diodes (LEDs) or other light emitting devices, a memory that stores configuration information and a communication component. The power supply component includes a power converter, a memory, and a controller. The power converter outputs an electrical signal for driving the one or more LEDs. The memory stores light head configuration information. The controller receives configuration information from the communication component via the data bus, generates and sends instructions, based on at least one of the configuration information stored in the power supply component memory or the configuration information received from the light head, to the power converter. | 08-25-2011 |
| 20110204817 | LIGHT SOURCE DRIVER, METHOD OF DRIVING THE SAME AND DEVICES INCLUDING THE SAME - A light source driver including an adjusting circuit configured to adjust a voltage applied to each of a plurality of light source channels in response to a plurality of comparison signals and a comparison circuit configured to compare a minimum voltage among output voltages of the respective light source channels with a plurality of reference voltages and output the plurality of comparison signals. | 08-25-2011 |
| 20110204818 | Portable Lighting Device and Related Method of Operation - A portable lighting device and related method of operation is provided which includes a light source, a switch, a brightness control element, a display, a contact for receiving power, and a light source controller. The light source is illuminated by switch being moved to a first position at which light source controller supplies power to light source from power received through contact. Once power is on, brightness control element is used to adjust the brightness of light source. Brightness control element may be a ring having multiple predetermined brightness settings disposed thereon with a detent and visual indicia associated with each setting. The display displays one or more usage parameters associated with the operation of the device such as brightness, lumen output, power consumption, and remaining power available at the current brightness setting. | 08-25-2011 |
| 20110204819 | APPARATUS, METHOD AND SYSTEM FOR PROVIDING MULTI-MODE ILLUMINATION - In light of the foregoing background, exemplary embodiments of the present invention provide an improved apparatus, method and system for providing multi-mode illumination. Specifically, exemplary embodiments of the present invention include a lighting apparatus capable of multiple modes of illumination (e.g., infrared illumination mode, visible light illumination mode, spot-light mode, flood-light mode, blended spot and flood light modes, etc.) and battery powered operation. The lighting apparatus further includes a fuel gage module capable of communicating an expected battery life based on a current operating mode of the lighting apparatus and a current state of charge of the battery. Lighting devices structured in accordance with various embodiments of the present invention may be light-weight and portable to improve ease of transport and deployment. Such lighting devices may also include a stable and yet retractable mounting device. In this regard, such lighting devices may be transported to remote locations and for providing a reliable light source. | 08-25-2011 |
| 20110204820 | CONFIGURABLE LED DRIVER/DIMMER FOR SOLID STATE LIGHTING APPLICATIONS - The disclosure is directed at a configurable light emitting diode (LED) driver/dimmer for controlling a set of light fixture loads comprising: a power circuit; a primary digital controller for controlling the power circuit; a set of output current drivers, each of the set of output current drivers connected to one of the set of light fixture loads for controlling the associated light fixture load; a secondary digital controller for controlling the set of output current drivers; wherein the secondary controller transmits LED control information to control outputs of the set of output current drivers; and wherein the secondary digital controller provides digital feedback control information to the primary digital controller. | 08-25-2011 |
| 20110215734 | PWM PULSE GENERATING CIRCUIT, DEVICE HAVING THE SAME, AND PWM CONTROL METHOD - Provided is a pulse width modulation (PWM) pulse generating circuit, a device including the circuit, and a PWM control method. The circuit includes a detector to detect the frequency of the PWM clock signal and output a frequency detection signal including whether the frequency of the PWM clock signal is higher than a reference frequency, and a PWM pulse signal output unit to generate a PWM pulse signal according to a data signal, the PWM clock signal, and the frequency detection signal. When the frequency detection signal includes that the frequency of the PWM clock signal is higher than the reference frequency, the PWM pulse signal output unit generates the PWM pulse signal having a predetermined allowable pulse width or a pulse with that is higher than the predetermined allowable pulse width. | 09-08-2011 |
| 20110221359 | Apparatus for Driving Field Emission Lamp - This control device, for a representative lamp L | 09-15-2011 |
| 20110227503 | SYSTEM AND METHOD FOR LED BACKLIGHT DRIVER FOR LCD PANELS - A power supply control system for driving light-emitting diode (LED) loads includes a first power switch for coupling to a voltage source, and a plurality of second power switches, each of which is configured for coupling to one of a corresponding plurality of LED loads. Each of the LED loads can include multiple light-emitting diodes (LEDs) connected in series. The power supply control system also includes an integrated circuit controller that includes a voltage controller configured to control the first power switch to provide an output voltage to each of the LED loads, and a current controller configured for coupling to each of the plurality of second power switches to provide a current through each of the LED loads. The integrated circuit controller is provided in a low-voltage integrated circuit chip, and the first power switch and the plurality of second power switches are high-voltage devices external to the low-voltage integrated circuit chip. | 09-22-2011 |
| 20110227504 | DRIVER FOR LIGHT EMITTING DIODES - A driver for light emitting diodes can reduce heat generation in a switching device by dividing surplus voltage from a plurality of LED arrays, caused by a voltage difference between LEDs, and providing the divided voltage to a plurality of switching devices. The LED driver includes a power part supplying a preset driving voltage to a plurality of LED arrays, and a plurality of driving parts switching a driving voltage flowing to the plurality of LED arrays, respectively. The plurality of driving parts each include a plurality of switches each receiving a divided surplus voltage remaining after the driving voltage is applied to the plurality of LED arrays. | 09-22-2011 |
| 20110234120 | ILLUMINATION DEVICE FOR PLANTS - An illumination device for plants includes a lighting unit mounted on a lamp seat and including a cold cathode fluorescent lamp and a light emitting diode (LED) unit. A driving unit is mounted to the lamp seat, is coupled to the cold cathode fluorescent lamp and the LED unit, and is operable so as to drive the cold cathode fluorescent lamp and the LED unit such that the cold cathode fluorescent lamp and the LED emit respectively color lights having respective wavelengths. A dimming unit is coupled to the driving unit, and is operable so as to output a dimming output to the driving unit. The driving unit drives the cold cathode fluorescent lamp and the LED unit based on the dimming output from the dimming unit so that the color light emitted by each of the cold cathode fluorescent lamp and the LED unit has a respective light intensity. | 09-29-2011 |
| 20110234121 | METHOD AND SYSTEM OF CONTROLLING ILLUMINATION CHARACTERISTICS OF A PLURALITY OF LIGHTING SEGMENTS - The invention provides a method and system of controlling illumination characteristics of a plurality of lighting segments. According to the invention, there is provided an illumination system, comprising: a plurality of lighting segments; a detecting subsystem configured to detect an illumination intensity and/or color of lights emitted from each lighting segment; a controller configured to receive the detecting subsystem's output signals representing illumination intensity and/or color of lights emitted from each lighting segment and to generate sets of driving signals to respectively adjust the driving currents of each lighting segment in response to the output signals, so as to adjust the illumination intensity and/or color of the lights emitted from each lighting segment in accordance with a predetermined illumination setting, wherein each set of driving signals has a unique period feature which is distinguished from that of other sets of driving signals corresponding to other lighting segments. | 09-29-2011 |
| 20110241566 | Power supply device for light sources, such as halogen lamps, and related method - In various embodiments, a power supply device for light sources may include a feed line from mains via a phase-cut dimmer, selectively switchable between a conductive state and a non-conductive state, to permit or interrupt feeding of the device from mains. The device may include a power stage to feed at least one light source from said feed line from mains; a drive stage for said power stage; and a supply stage for said drive stage, said supply stage connected to said feed line from mains. The device may further include a sensor to detect when said dimmer is non-conductive and when said dimmer is conductive. The drive stage may be coupled to the sensor to disable driving of said power stage when the sensor indicates that the dimmer is non-conductive, and enable driving of the power stage when the sensor indicates that the dimmer is conductive. | 10-06-2011 |
| 20110248645 | LIGHT SOURCE OF LED AND METHOD FOR PRODUCING LIGHT SOURCE WITH VARYING COLOR WHILE DIMMING - A light source of LED includes at least one first LED and at least one second LED. The first LED has a first optical illuminant characteristic varying with a variable operation voltage from a first level to a second level, wherein the first level is larger than the second level. The second LED has a second optical illuminant characteristic varying with the variable operation voltage from a third level to a fourth level, wherein the third level is smaller than the fourth level. The first LED and the second LED are simultaneously controlled by the same variable operation voltage to produce a light. | 10-13-2011 |
| 20110248646 | POWER SUPPLY UNIT, LIGHT EMITTING APPARATUS AND DIMMING METHOD THEREOF - A power supply unit with a dimming function which is adapted for a light emitting apparatus including a power system is provided. The power supply unit includes at least one output channel, a power stage, a detecting unit, and a micro controller unit (MCU). The power stage receives a first output of the power system and provides a first signal. The detecting unit detects a second output of the power system and provides a second signal. The MCU receives the first signal and the second signal, controls the at least one output channel, and is programmed to set a dimming ratio for the at least one output channel according to the first signal and the second signal. Furthermore, a light emitting apparatus and a dimming method are also provided. | 10-13-2011 |
| 20110248647 | LIGHTING DEVICE AND LIGHT FIXTURE USING LIGHTING DEVICE - A lighting device reliably detects a status (i.e., existence or absence) of a load connection, and enables or disables power output based on the detected load connection status. The device includes a DC-DC converter having input and output terminals, and a DC current conducting element coupled across the output terminals. A load terminal is also coupled across the output terminals and configured to receive an LED unit. A load detection circuit coupled between an input terminal and the load terminal detects the connection status of an LED unit via a DC current passing through the load terminal, and controls a switching operation of the DC-DC converter based on the detected connection status. A diode coupled between the load terminal and the DC current conducting element blocks a DC current path from the input terminals to the load detection circuit through the DC current conducting element. | 10-13-2011 |
| 20110248648 | CIRCUITS AND METHODS FOR POWERING LIGHT SOURCES - A driving circuit for powering a plurality of light-emitting diode (LED) light sources includes a power converter and a plurality of current balance controllers. The power converter receives an input voltage and provides a regulated voltage to the LED light sources. The current balance controllers coupled to the power converter control a plurality of currents through the LED light sources respectively. The current balance controllers receive a first reference signal indicative of a target average level and a second reference signal indicative of a maximum transient level, and regulate an average current of each of the currents to the target average level and a transient level of each of the currents within the maximum transient level. | 10-13-2011 |
| 20110254465 | LIGHT EMITTING DIODE DRIVE CIRCUIT DEVICE - The present invention discloses an LED drive circuit device. The LEDs are installed in a lamp-set and two ends of the lamp-set are provided respectively with two pins to receive a high frequency AC outputted from a ballast, with the two pins being further electrically connected with a drive circuit module. The drive circuit module includes primarily a resonant network correction circuit and a rectifying circuit. The resonant network correction circuit adjusts the high frequency AC received by the two pins to comply with an application range of LED current and then the rectifying circuit converts the AC into a DC which is next outputted through other two pins. By applying the aforementioned circuits, the LED lamp-set can be applied to an ordinary electronic ballast, thereby achieving high compatibility. | 10-20-2011 |
| 20110254466 | LIGHTING APPARATUS HAVING PLURAL ANALOG OUTPUTS - The invention provides a system of generation of multi-channel analog output signals, from a single analog input signal, and the controlled activation of peripheral devices responsive to the multi-channel analog output signals. A single-channel to multi-channel analog-to-analog converter is provided to convert the single analog input signal to multiple output channels. Uni-directional coupling is used for coupling and mixing the multi-channel outputs and transferring the mixed outputs to a data bus. Signals on the data bus are used to drive the multiple peripheral devices. | 10-20-2011 |
| 20110260642 | INDUCTIVE CURRENT-SHARING CONTROL CIRCUIT FOR LED LAMP STRING - An inductive current-sharing control circuit for LED lamp strings includes a signal generating unit, a control unit, a current-sharing unit, a first diode, a capacitor, and a light-emitting unit. The control unit is electrically connected to the signal generating unit. The current-sharing unit is electrically connected to the first diode. The light-emitting unit is electrically connected in parallel to the capacitor. A driving voltage, which is generated by the signal generating unit, is controlled by the control unit to provide desired voltage to the light-emitting unit to provide current-sharing control, thus effectively providing a stable current source to the light-emitting unit to maintain illuminating brightness of the LED lamp strings. | 10-27-2011 |
| 20110260643 | ENERGY-SAVING MECHANISMS - Some embodiments regard a method comprising: using an input voltage to generate an output voltage having a first voltage level; in a first period, when the output voltage changes from the first voltage level to a second voltage level, storing electrical charges resulted from the output voltage changing from the first voltage level to the second voltage level; and in a second period subsequent to the first period when the output voltage demands energy, using a voltage generated from the stored electrical charges in place of the input voltage to generate the output voltage. | 10-27-2011 |
| 20110260644 | LIGHT EMITTING DIODE BACKLIGHT DRIVING SYSTEM - A light emitting diode (LED) backlight driving system drives at least one LED array, and includes a boost power stage circuit, a controller, a multi-channel constant current driving circuit, a voltage dividing circuit, and an offset voltage generating circuit. The boost power stage circuit boosts direct current (DC) power signals to output driving voltage to drive the LED array. The multi-channel constant current driving circuit controls current flowing through the LED array, and outputs regulating voltage to the controller to regulate the driving voltage. The voltage dividing circuit divides the driving voltage to generate feedback voltage to send to the controller. The offset voltage generating circuit generates offset voltage to modify the feedback voltage according to at least one mode selection signal. The controller controls the driving voltage according to the modified feedback voltage and the regulating voltage. | 10-27-2011 |
| 20110260645 | LED BACKLIGHT DRIVING MODULE - The instant disclosure relates to a LED backlight driving module. The driving module utilizes a plurality of second power isolation transformers interconnected to each other in series and connected to a secondary winding of a first power isolation transformer in parallel to produce a plurality of second driving signals with uniform current, and driving corresponding LED light bars with uniform brightness. Optionally, a base voltage circuit can be used to provide a base voltage with negative voltage level on the other end of LED light bars, so as to lower the positive voltage level of the second driving signals. Thus, it is beneficial that the LED backlight driving module provides higher power conversion efficiency and has lower design cost. | 10-27-2011 |
| 20110260646 | LEAD FRAME FOR LIGHT EMITTING DEVICE PACKAGE, LIGHT EMITTING DEVICE PACKAGE, AND ILLUMINATION APPARATUS EMPLOYING THE LIGHT EMITTING DEVICE PACKAGE - Lead frames for light emitting device packages, light emitting device packages, and illumination apparatuses employing the light emitting device packages. The lead frame including a plurality of mounting portions on which a plurality of light emitting device chips are mounted; a plurality of connection portions for circuit connecting the plurality of light emitting device chips; a terminal portion extended from the plurality of connection portions. The light emitting device package is formed by directly mounting the plurality of light emitting device chips on the lead frame and packaging the mounted light emitting device chips on the lead frame. The lead frame includes a plurality of connection portions for circuit connecting the plurality of light emitting device chips and a terminal portion in which a part of a circuit thereof is exposed. | 10-27-2011 |
| 20110260647 | LIGHT EMITTING DIODE REPLACEMENT LAMP - In various embodiments, an illumination device includes a housing, a power connector for connecting the illumination device to a power socket and receiving input power, a light emitter for direct illumination disposed within the housing, a circuit for regulating the input power and providing the regulated power to the light emitter, and a decorative illumination element for providing decorative illumination. | 10-27-2011 |
| 20110260648 | LIGHT SOURCE MODULE, LIGHTING APPARATUS, AND ILLUMINATION DEVICE USING THE SAME - A light source module includes: a light source unit including a plurality of light-emitting diodes (LEDs) electrically connected to each other; a characteristic setting unit for setting characteristic information on electrical characteristics of the LEDs; a first pin base having a first electrode and a second electrode; and a second pin base having a third electrode and a fourth electrode, wherein a direct current (DC) voltage supplied from a lighting apparatus is applied between the first electrode and the second electrode or between the third electrode and the fourth electrode, a constant voltage is supplied to an anode side of the LEDs of the light source unit, and the characteristic setting unit is connected between the first and second electrodes and/or between the third and fourth electrodes. | 10-27-2011 |
| 20110260649 | LIGHTING APPARATUS HAVING ANALOG-TO-ANALOG SIGNAL CONVERTER - The invention provides a system of generation of multi-channel analog output signals, from a single analog input signal, and the controlled activation of peripheral devices responsive to the multi-channel analog output signals. A single-channel to multi-channel analog-to-analog converter is provided to convert the single analog input signal to multiple output channels. Uni-directional coupling is used for coupling and mixing the multi-channel outputs and transferring the mixed outputs to a data bus. Signals on the data bus are used to drive the multiple peripheral devices. | 10-27-2011 |
| 20110266969 | Dimmable LED Power Supply with Power Factor Control - A dimmable LED power supply circuit arrangement is disclosed. The circuit arrangement includes a flyback converter coupled between an input for receiving a rectified alternating line voltage and an output providing power for at least one LED device. The flyback converter includes a transformer and a semiconductor switch for switching a primary current of the transformer. A current sensing unit provides a current sense signal dependent on the primary current. A control unit controls the switching operation of the semiconductor switch dependent on the rectified alternating line voltage and the current sense signal such that the flyback converter operates in a quasi-resonant mode of operation, whereby the current sense signal is compared with a time-varying reference signal representing the rectified alternating line voltage and whereby a switch-off time of the semiconductor switch is determined dependent on the comparison. | 11-03-2011 |
| 20110266970 | SYSTEM AND METHODS FOR PROVIDING EQUAL CURRENTS TO CURRENT DRIVEN LOADS - Systems and methods are provided for providing a substantially constant and equal current to a plurality of current driven loads. In one embodiment, a system is provided that comprises a plurality of current regulated outputs and a plurality of current driven loads. The plurality of current regulated outputs and the plurality of current driven loads are arranged in a single current loop configuration with a respective current regulated output providing an output voltage to a respective current driven load of the plurality of current driven loads. | 11-03-2011 |
| 20110266971 | Skylight LED lighting system - A skylight LED lighting system is described. The system utilizes LED lights attached to or near a skylight in order to provide a user with the ability to increase the amount of light being directed into an area. The system can utilize a LED controller to allow the user to control the light output intensity. The LED controller provides a smooth range of changing brightness levels. The system can utilize one or more solar cells and batteries to power the LED lights. The system can be controlled via a radio frequency remote control. Additionally, the system can utilize a flexible, skylight-shaped installation housing that can be inserted into the skylight under compression. When the compression is released, the ring expands to press against the inside of the skylight and holds the skylight LED lighting system in place. | 11-03-2011 |
| 20110273110 | Power supply with dimming control for high-power DC LED lamp - A power supply with dimming control for a high-power DC LED lamp is provided. Particularly, a variable resistor is provided to a circuit of the high-power DC LED lamp for changing a current supplied to a light-emitting unit of the high-power DC LED lamp, thereby adjusting luminance (brightness) and power consumption (consumed watts) of the high-power DC LED unit of the high-power DC LED lamp. The variable resistor is provided to a driver, transformer, adaptor or power supply of the high-power DC LED lamp in a built-in manner or a remotely connected manner | 11-10-2011 |
| 20110273111 | DC-DC CONVERTER, ORGANIC ELECTROLUMINESCENT DISPLAY DEVICE INCLUDING THE SAME, AND METHOD OF DRIVING THE ORGANIC ELECTROLUMINESCENT DISPLAY DEVICE - In order to adjust a black level by using a power supply voltage, an organic electroluminescent display device includes: a plurality of scan lines arranged in a row direction; a plurality of data lines arranged in a column direction; a plurality of pixels formed at intersections between the plurality of scan lines and the plurality of data lines; and a direct current (DC)-DC converter to supply a power supply voltage to the plurality of pixels, wherein the DC-DC converter includes a set resistor, and to convert a reference voltage selected according to a set voltage determined by the set resistor into a power supply voltage and to supply the power supply voltage to the plurality of pixels. | 11-10-2011 |
| 20110279057 | CONTROL APPARATUS AND LIGHTING APPARATUS INCORPORATING CONTROL APPARATUS - Control apparatus for controlling an aspect of an apparatus are disclosed. In certain embodiments, the control apparatus comprises a dimmer that includes a variable impedance. In certain embodiments of the invention, the dimmer may be a TRIAC dimmer having a voltage at a gate electrode of the TRIAC that is always below a trigger voltage for the TRIAC such that the TRIAC never turns on and the remaining components within the TRIAC dimmer can be used as discreet components in a larger circuit. In the control apparatus, the dimmer may be coupled to a signal generation circuit that may generate an output signal whose frequency (period) is dictated at least in part by an impedance of the variable impedance. The output signal may be used to control an aspect of an apparatus such as the intensity, color or color temperature for a lighting apparatus. | 11-17-2011 |
| 20110279058 | MODULE TO CONTROL THE SUPPLY TO LED ASSEMBLIES - A device for measurement of characteristic parameters of at least one assembly of at least one light emitting diode (LED) comprising a measurement circuit for each assembly, wherein the measurement circuit has an electrical input which can be connected to the LED, a single measurement output to provide electrical values which are representative of at least two characteristic parameters of the LED, a first circuit configuration, which is designed to provide the measurement output with a value which is representative of a first characteristic parameter, a second circuit configuration, which is designed to provide the measurement output with a value which is representative of a second characteristic parameter and means for switching between the first circuit configuration and the second circuit configuration. | 11-17-2011 |
| 20110279059 | STEP-UP CONVERTER FOR LIGHT-EMITTING DIODES (LEDS) - The present invention relates to a circuit for controlling at least one LED and to a light- and/or signal element including said circuit, wherein the circuit facilitates an optimum utilization of any input voltage provided by an energy source and provides constant light intensity of the LEDs independent from an input voltage. For this purpose, the circuit contains a step-up converter arranged in the circuit in a way such that the step-up converter outputs a voltage adapted to a forward voltage of the at least one LED at a constant current independent from an input voltage provided by the energy source. | 11-17-2011 |
| 20110285313 | Light-emitting element driving device and display device - A light-emitting element driving device includes: a plurality of light emitters; a power supply; a plurality of current control transistors; a plurality of constant-current circuits; a voltage selecting circuit; a control circuit; and a voltage controller. | 11-24-2011 |
| 20110285314 | Linkable Linear Light Emitting Diode System - A linkable linear light emitting diode (LED) system provides apparatus and method for mechanically, optically, and electrically linking multiple LED modules disposed over a wide and separated area of a ceiling system. Openings can be cut in ceiling tiles of a drop ceiling system and the LED lighting modules are coupled to the tile through the opening, with the tile being sandwiched between different portions of the module. A remote driver system is placed within the drop ceiling above the tiles and provide multiple connectors for powering a multitude of lighting modules. Certain of the LED lighting modules include both input and output connectors for both receiving power or data and providing power or data to other modules. In this manner, some of the modules act as master LED lighting modules and those receiving power and/or data therefrom are act as slave modules. | 11-24-2011 |
| 20110285315 | LIGHTING DEVICE, LIGHTING SYSTEM, AND METHOD OF USE - A portable lighting device having one or more inputs, at least a first and second output, one or more light sources, an input sensor, an output sensor, an adaptive buck converter, a boost mechanism, an internal power source, and a controller. The input sensor is coupled to the one or more inputs and the output sensor is coupled to the first output. The input and output sensors are coupled to the adaptive buck converter and the boost mechanism and also to the controller. The controller is configured to instruct the adaptive buck converter to condition power inputs at the one or more inputs. The controller is configured to instruct the boost mechanism to boost a stored output from the internal power source. | 11-24-2011 |
| 20110291588 | LIGHT FIXTURE WITH AN ARRAY OF SELF-CONTAINED TILES - The present invention describes light fixtures comprising an array of self-contained LED tiles for illuminating light from a surface area of a respective light fixture. Each of the array of LED tiles is a self-contained lamp that contains its respective own AC or DC input power supply and LED driver, its respective heat dissipation element, and its respective light collation element. The array of tiles makes the total illumination from the array to be sufficiently bright, even though any given LED tile might only have a modest amount of light output. Embodiments of the LED tiles for use with various lamp fixtures include, but not limited to, a hexagon-shaped LED tile, a square-shaped LED tile, an equilateral triangle-shaped LED tile, and a rectangle-shaped LED tile with an aspect ratio, for example, of 3:1. The different types of LED tiles are suitable for use to cover various types of surfaces of lamp fixtures. | 12-01-2011 |
| 20110291589 | MULTI-INPUT DIFFERENTIAL AMPLIFIER AND LIGHT EMITTING ELEMENT DRIVING DEVICE - A multi-input differential amplifying device of the present invention includes: a differential amplifier having an inverting input terminal and a non-inverting input terminal; and an input portion configured to apply a first input voltage to a first input terminal that is one of the inverting input terminal and the non-inverting input terminal and apply a second input voltage to a second input terminal that is the other input terminal, the first input voltage corresponding to first input signals that are a plurality of input signals for the first input terminal, the second input voltage corresponding to a second input signal that is one input signal for the second input terminal. The input portion is configured to correct an offset voltage between the first input voltage and the second input voltage. | 12-01-2011 |
| 20110298392 | In-Wall Occupancy Sensor with Dimmable Night Light - An electrical wiring device includes a dimmable night light therein. The night light includes one or more light sources for emitting light and an optional lens disposed over the light sources. The lens allows light from the light sources to be emitted therethrough. In some embodiments, the lens is used to turn on the night light, turn off the night light, and dim the night light. In some exemplary embodiments, manipulation of the lens selects an operating mode for the device. The device optionally includes an occupancy detection sensor to assist detecting occupancy within a monitored area. | 12-08-2011 |
| 20110298393 | AC TO DC LED ILLUMINATION DEVICES, SYSTEMS AND METHOD - Illumination devices ( | 12-08-2011 |
| 20110304277 | DRIVING CIRCUIT AND ILLUMINATION APPARATUS USING THE SAME - An illumination apparatus including an LED comprises a battery holder, an AC/DC adapter interface, an LED unit, and a switch unit. The battery holder is configured to receive a battery. The AC/DC adapter interface is connected to an AC/DC adapter. When the AC/DC adapter is not connected to the AC/DC adapter interface, the switch unit is turned on to allow the driving unit to receive power from the battery. When the AC/DC adapter is connected to the AC/DC adapter interface, the switch unit is turned off to allow the driving unit to receive power from the AC/DC adapter. A driving circuit applied in an illumination apparatus is also provided. | 12-15-2011 |
| 20110309769 | POWER CONTROL DEVICE FOR LED LIGHTING AND LIGHTING SYSTEM - A lighting system including a power control device for controlling illuminance of a lighting fixture by outputting current to drive the lighting fixture and controlling the current, a plurality of lighting fixtures each driven to be lit by the power control device, and a switch device incorporating an energy self-supplying unit converting an operating force of a switch button into electric energy. The power control device includes a first circuit section having a receiver for receiving a wireless signal having a predetermined frequency and a control signal generating circuit for generating a control signal according to the number of times of reception of the wireless signal and operated by a first power system and a second circuit section operated by a second power system and outputting current according to the control signal from the first circuit section, and the second power system is not operated when not outputting current. | 12-22-2011 |
| 20110316443 | ILLUMINATING APPARATUS AND ILLUMINATING METHOD THEREOF - The present invention discloses an illuminating apparatus and an illuminating method thereof. The illuminating apparatus comprises a first electrode, a first organic light emitting diode, a second electrode, a second organic light emitting diode and a third electrode. The first and second organic light emitting diodes emit lights with a first chromaticity and a second chromaticity respectively. The illuminating apparatus further comprises a control module, and the control module can supply a first voltage, a second voltage and a third voltage to the first, second and third electrodes so as to emit a sun-like light and adjust the color temperature or the brightness of the light. | 12-29-2011 |
| 20110316444 | POWER SOURCE UNIT AND LIGHTING FIXTURE - According to one embodiment, there is provided a lighting fixture including a fixture body, straight-tube type LED lamps each having semiconductor light emitting elements, and a dedicated power source for lighting the semiconductor light emitting elements. The dedicated power source outputs current having a trapezoidal waveform a period of a peak portion of which is 54% or more of one cycle, and thus lights the semiconductor light emitting elements. | 12-29-2011 |
| 20110316445 | LED LAMP SYSTEM - An LED lamp system which suppresses flickering of an LED element is provided. | 12-29-2011 |
| 20120001568 | LIGHT EMITTING APPARATUS USING AC LED - Provided is an AC LED light emitting device. The AC LED light emitting device flows a current to at least one AC LED array among at least two AC LED arrays of an AC LED light emitting unit to turn it on during one period of an AC power having sine wave characteristics if a magnitude of a voltage applied to the AC LED light emitting unit including at least two AC LED arrays each of which including at least one AC LED is smaller than a turn-on voltage determined according to the number of AC LED arrays of the AC LED light emitting unit. If the magnitude of the voltage applied to the AC LED light emitting unit is larger than the turn-on voltage of the AC LED light emitting unit, all of the AC LED arrays of the AC LED light emitting unit are turned on. | 01-05-2012 |
| 20120001569 | SUPPLY CIRCUIT - The present invention relates to a supply circuit ( | 01-05-2012 |
| 20120007521 | ILLUMINATING DEVICE AND CONTROLLING METHOD THEREOF - To a constant-current power supply whose output current can be variably set, light emitting modules can be connected in parallel. A control unit recognizes connection information outputted from an information output unit provided in each of the light emitting modules and varies the output current of the constant-current power supply. Drive can be controlled in response to a state of the connected light emitting modules such as the connecting number of light emitting modules. | 01-12-2012 |
| 20120019163 | Light emitting device driving circuit - The invention provides a light emitting device driving circuit, comprising a rectification unit, a current limiting unit and a load. The load comprises a first light emitting device, a reverse voltage providing unit and a second light emitting device connected in serial. When the rectification unit rectifies an alternate current voltage to output a direct current voltage, and the current limiting unit limits the direct current in a predetermined value, the direct current is provided to the first light emitting device or the second light emitting device for operation. The reverse voltage providing unit provides a reverse voltage to reduce the total operating voltage of the light emitting devices in order to enhance the driving efficiency and the power factor. | 01-26-2012 |
| 20120019164 | CALIBRATION METHOD FOR LED LIGHTING SYSTEMS - A method of operating a lighting fixture comprising a plurality of discrete illumination sources of distinguishably different color coordinates comprises determining target color coordinates and luminous flux at which to operate the lighting fixture, determining input electrical power values for each of the plurality of discrete illumination sources that substantially produce the target color coordinates and luminous flux by referencing a calibration data lookup table having calibration data based on measurements of the plurality of discrete illumination sources, determining a color mixing zone defined by three distinguishably different color coordinates of the plurality of discrete illumination sources within which the target color coordinates lie according to the calibration data, determining luminous flux ratios for each of the plurality of discrete illumination sources having one of the three distinguishably different color coordinates defining the color mixing zone that substantially produces the target color coordinates, and determining input electrical power levels for each of the plurality of discrete illumination sources that generate the determined luminous flux ratios. | 01-26-2012 |
| 20120019165 | ILLUMINATION DEVICE - The illumination device disclosed in the present specification has a light source, a touchless sensor for detecting proximity and movement of an object without contact, and a control unit for controlling the driving of the light source on the basis of an output of the touchless sensor. | 01-26-2012 |
| 20120019166 | POWER SOURCE UNIT FOR LED LAMPS, AND LED LAMP SYSTEM - A dedicated power source for LED lamps capable of reliably detecting attachment of an LED lamp is provided. | 01-26-2012 |
| 20120025734 | LUMINOUS DEVICE WITH CHANGEABLE COLOR AND BRIGHTNESS - A luminous device is provided. The luminous device can be controlled to emit light with different color and brightness. The luminous device is divided into a plurality of areas, a predetermined color and brightness values of the light emitted by the luminous device is stored in data storage of the luminous device. When the luminous device is touched, the luminous device determines the touch area first, and then accesses the corresponding color and luminance value of the determined area from the data storage, and controls the luminous device to emit light with the accessed color and brightness value. | 02-02-2012 |
| 20120025735 | FLYBACK WITH SWITCHING FREQUENCY RESPONSIVE TO LOAD AND INPUT VOLTAGE - A power source constituted of: a power factor corrector controller; an electronically controlled switch responsive to the power factor corrector controller; a first inductor serially connected with the electronically controlled switch and arranged to pass a direct current there through when the electronically controlled switch is closed; a second inductor magnetically coupled to the first inductor and coupled to provide power to a load in a flyback arrangement; a third inductor magnetically coupled to the first inductor, a first end of the third inductor arranged to provide a representation of the voltage level of the direct current when the electronically controlled switch is closed, and to provide a representation of the voltage level of the power provided to the load when the electronically controlled switch is open; and an off time control circuit in communication with the power factor corrector controller and responsive to the third inductor representations. | 02-02-2012 |
| 20120032609 | DEVICE FOR REGULATING THE LUMINOUS INTENSITY IN FLUORESCENT LAMPS WITH AN ELECTROMAGNETIC REACTANCE AND A STARTER, AND LIGHTING SYSTEM WHICH COMPRISES SAID DEVICE - The present invention relates to a device for regulating light intensity in fluorescent lamps with an electromagnetic ballast and starter and a lighting system comprising said device, comprising at least one fluorescent lamp comprising a fluorescent tube ( | 02-09-2012 |
| 20120038291 | COLOR TEMPERATURE TUNABLE LED LIGHT SOURCE - A color temperature tunable LED light source. An apparatus is provided that includes a substrate, a first group of LED chips mounted on the substrate and configured to produce first color temperature light having a first intensity value determined from a first drive current, and a second group of LED chips mounted on the substrate and configured to produce second color temperature light having a second intensity value determined from a second drive current, wherein the first color temperature light and the second color temperature light combine to produce light having a resulting color temperature and a resulting intensity value. | 02-16-2012 |
| 20120043909 | LED Luminaires Power Supply - An LED luminaires power supply that isolates dangerous line power from the LED luminaires. The power supply's footprint may enable retrofitting in existing lighting fixtures (e.g., replace ballast in florescent tube troffer). The power supply may individually power a plurality of LED luminaires based on power requirements of the individual LED luminaires. The power supply may receive and interpret TRIAC dimmer signals and/or other lighting protocol commands and provide dimming and/or other lighting scenarios to the LED luminaires. The power supply may include identification readers to read identification and/or power requirements for the LED luminaires being powered thereby (stored in luminaires or in adapters connected to luminaires). The LED luminaires driven by the power supply may include individual lighting fixtures (e.g., LED tubes, LED bulbs), a plurality of LED light arrays in a single light fixture (e.g., LED street lights, LED high hats), or some combination thereof. | 02-23-2012 |
| 20120043910 | LIGHTING APPARATUS - Of the various technological features disclosed in the present specification, a structure according to the one technological feature is as follows. A lighting apparatus changeable between an illuminating state and a non-illuminating state comprising: a non-contact motion sensor arranged to sense a movement of a hand near the lighting apparatus; and a controller arranged to control the lighting apparatus in the non-illuminating state to change from the non-illuminating state to the illuminating state in response to the movement of hand sensed by the non-contact motion sensor, and to control the lighting apparatus in the illuminating state to cause a change in illumination with the illuminating state kept in response to the same movement of hand sensed by the non-contact motion sensor. | 02-23-2012 |
| 20120043911 | Lighting Device - A lighting device whose power conversion efficiency is improved by suppression of fluctuation in luminance of a light-emitting element and deterioration of the light-emitting element due to a change in temperature and a change over time and whose power consumption is reduced is provided. The disclosed invention is a lighting device that has a function of correcting a change in temperature and a change over time and includes at least one switching regulator in a driver portion. Constant current drive is performed on light-emitting elements and monitor light-emitting elements are used, so that highly-efficient output voltage which is corrected to have an optimal level is applied to the light-emitting elements and stable drive is performed for a long time. Power conversion efficiency is improved by a switching regulator, so that the total power consumption of the lighting device is reduced. | 02-23-2012 |
| 20120056554 | Solid State Light Source Driving and Dimming Using an AC Voltage Source - Solid state light source driving and dimming systems are provided that enable a plurality of solid state light source (e.g., LED) driver circuits to be coupled to a single AC voltage source. The driver circuits may include constant current circuitry configured to generate a constant AC current from the AC voltage source, and rectifier circuitry configured to generate a DC current to drive the solid state light source (e.g., LEDs). Dimming control includes shunt circuitry operable with a PWM switch to shunt the AC voltage source during certain portions of a PWM signal and to decouple the shunt circuitry from the AC voltage source during other portions of the PWM signal. Shunting the AC voltage source causes the interruption of the DC current to effectively turn off the LEDs. Decoupling the shunt circuitry may improve overall efficiency of power transfer to the LEDs. | 03-08-2012 |
| 20120056555 | LIGHT EMITTING DIODE ILLUMINATOR AND ILLUMINATION CONTROL INTERFACE OF THE LIGHT EMITTING DIODE ILLUMINATOR - A light emitting diode illuminator includes at least one light emitting diode, a power supply, an illumination control interface and a controller. The power supply is electrically connected to the at least one light emitting diode so as to provide a current to the at least one light emitting diode. The illumination control interface is configured to sense a touch time from a user so as to generate a control signal. The controller is electrically connected to the illumination control interface and the power supply so as to generate a modulation signal according to the control signal. The power supply adjusts strength of the current according to the modulation signal so that the at least one light emitting diode generates a corresponding illumination according to the strength of the current. | 03-08-2012 |
| 20120056556 | LED-BASED LIGHT SOURCE HAVING DECORATIVE AND ILLUMINATION FUNCTIONS - A light source that generally includes multiple light emitting diode (LED) sources emitting light at different colors. A controller energizes the LED sources for establishing a changing pattern of the light colors to provide a decorative effect while simultaneously establishing white light illumination of a target area. | 03-08-2012 |
| 20120056557 | LIGHT EMITTING BULB, LUMINARY AND ILLUMINATION DEVICE USING LED - A light emitting bulb, a luminary and an illumination device are provided. The light emitting bulb includes a main body and a bulb base. The main body has a plurality of the light emitting units. The bulb base has a plurality of flexible pieces. The flexible pieces are connected to the light emitting units respectively to form a plurality of electrical transmission paths. The luminary further has a lamp holder for holding the light emitting bulb. A control unit in the illumination device is connected to the light emitting bulb through the lamp holder for selectively providing a supply of a power to the light emitting units to control brightness of light emitting units, respectively. The light emitting bulb may facilitate color changing and brightness control without having a control circuit disposed within the light emitting bulb and is associated with a longer lifetime and a lower manufacturing cost. | 03-08-2012 |
| 20120056558 | DISPLAY DEVICE AND ELECTRONIC DEVICE USING THE SAME - The invention provides a low-power consumption display device. The display device | 03-08-2012 |
| 20120062144 | LED DRIVERS WITH ADAPTIVE HYSTERETIC CONTROL CIRCUITS AND ASSOCIATED METHODS OF OPERATION - Various embodiments of LED drivers and associated methods of are described below. In one embodiment, a method for controlling an LED driver includes receiving a reference voltage, receiving a feedback voltage from said LED driver, receiving said input voltage as a first feed forward voltage and said output voltage as a second feed forward voltage, generating a hysteretic width based on said first feed forward voltage and said second feed forward voltage, and generating a hysteretic band voltage using said hysteretic width and said reference voltage. The method also includes generating a first control signal for controlling said LED driver based on said hysteretic band voltage and said feedback voltage, inverting said first control signal to generate a second control signal for controlling said LED driver, and achieving a generally fixed frequency for said LED driver. | 03-15-2012 |
| 20120062145 | LED (LIGHT-EMITTING DIODE) OUTPUT POWER ADJUSTING DEVICE AND METHOD THEREOF - An LED (Light-Emitting Diode) output power adjusting device includes an analog/digital conversion and detection circuit, a computation and control unit, a digital/analog conversion control circuit, and a power supply circuit. The analog/digital conversion and detection circuit is connected to an LED based load to detect a forward voltage thereof and converts the forward voltage into an output of digital signal. The computation and control unit perform evaluation and computation on the digital signal of the forward voltage to obtain a digital current control signal indicating a corresponding current. The digital/analog conversion control circuit converts the digital current control signal into an analog current control signal, which is then fed to a constant current drive circuit of the LED based load to adjust an output power of the LED based load to approximate a constant power condition. The power supply circuit supplies working powers for the analog/digital conversion and detection circuit, the computation and control unit, and the digital/analog conversion control circuit. Also disclosed is an LED output power adjusting method. | 03-15-2012 |
| 20120062146 | LAMP DRIVING DEVICE - A lamp driving device is provided for driving plural lamps. The lamp driving device includes a power conversion circuit and plural lamp connectors. The power conversion circuit is capable of converting an input voltage into a first DC voltage, and outputting a first current having a constant current value. The plural lamp connectors are serially connected with each other, and have respective positive terminals and respective negative terminals connected with corresponding lamps, thereby outputting respective output voltages and respective output currents to corresponding lamps. The first DC voltage is subject to voltage-division to obtain the output voltages, and the magnitudes of the output voltages from the lamps are substantially identical. | 03-15-2012 |
| 20120068621 | LED Light Source Utilizing Magnetic Attachment - A light module include and method for using the same are disclosed. The light module includes a heat-conducting structure and a plurality of LEDs bonded to a head conducting structure. The LEDs are to a first surface of the heat-conducting structure and are mounted on the heat-conducting structure such that at least 50 percent of the heat generated by the LEDs is transferred to the heat-conducting structure. The heat-conducting structure includes a ferromagnetic material and is structure such that the heat-conducting structure bonds magnetically to a heat-dissipating structure with sufficient force to support the light module during the normal operation thereof when the light source is placed against the heat-dissipating structure. The present invention can be utilized for retro-fitting an existing light fixture having an enclosure that includes a ferromagnetic material and plurality of legacy light sources. | 03-22-2012 |
| 20120068622 | Flexible Distributed LED-Based Light Source and Method for Making the Same - A precursor structure for fabricating light sources, the light sources fabricated therefrom, and the method of fabricating the precursor structure are disclosed. A precursor substrate includes a flexible printed circuit board on which dies are bonded and a separation ridge. The flexible printed circuit board has a bottom heat-conducting layer, an insulating layer, and a circuit layer. The insulating layer and the circuit layer include a plurality of openings that expose the top surface of the heat-conducting layer. The separation ridge extends above the circuit layer and the dies and is configured to prevent contact with the dies and any structures constructed above the dies when the precursor substrate is in contact with a surface positioned over the die and in contact with the separation ridge. The structure is well suited for roll-to-roll processing equipment. | 03-22-2012 |
| 20120074867 | LED LIGHTING DEVICE FOR AN ELECTRIC BED - An LED lighting device for an electric bed has at least one LED light strip installed on a bottom side of a support frame of the electric bed, the LED light strip comprising a plurality of LED lights; a control box installed on the electric bed and supplying power to the LED light strip, the control box having a transformer and a switchable power supply electrically connected together; wherein when an alternating current passes through the control box, the transformer converts the alternating current into a direct current that is output through the switchable power supplier to the LED light strip; and a remote capable of controlling the electric bed and communicating with an electric switch of the control box. | 03-29-2012 |
| 20120074868 | DRIVING CIRCUIT FOR DRIVING LIGHT EMITTING DIODES AND SHORT CIRCUIT PROTECTION CIRCUIT APPLIED TO A DRIVING CIRCUIT FOR DRIVING LIGHT EMITTING DIODES - A short circuit protection circuit applied to a driving circuit of light emitting diodes is coupled to a highest-voltage detection circuit, a current balance circuit, and a voltage-feedback control circuit for generating a driving-current control signal and a voltage-feedback control signal according to the highest voltage of the highest-voltage detection circuit to disable the current balance circuit and the voltage-feedback control circuit so as to implement short lamp protection. | 03-29-2012 |
| 20120081032 | MECHANISMS FOR ANTI-FLICKERING - A circuit comprises a first switch, a second switch, a third switch, and a fourth switch. Each has a first end and a second end. The circuit also comprises a capacitive device having a first capacitive end and a second capacitive end, and a voltage source. A first node having a first voltage is coupled to the first fourth-switch end, to the first second-switch end, and to the first capacitive end. A second node having a second voltage is coupled to the voltage source, to the second fourth-switch end, and to the second third-switch end. A third node is coupled to the second second-switch end, and to the first first-switch end. The first switch and the second switch are controlled such that the first node and the voltage source selectively provide the second voltage. | 04-05-2012 |
| 20120081033 | WHITE LIGHT EMITTING DIODE - A white light emitting diode comprises a light emitting diode chip for emitting a blue light, a first wavelength conversion layer and a second wavelength conversion layer. The light emitting diode chip comprises a first lighting area and a second lighting area through which at least two currents flow, respectively. The first wavelength conversion layer is coated on the first lighting area and generates a first conversion light upon excitation by the blue light. A warm white light is generated by mixing the blue light and the first conversion light. The second wavelength conversion layer is coated on the second lighting area and generates a second conversion light upon excitation by the blue light. A cold white light is generated by mixing the blue light and the second conversion light. The amount of the currents can be controlled to modify the luminescence intensity of each light area, thus adjusting the color temperature of the white LED. | 04-05-2012 |
| 20120081034 | OLED DISPLAY WITH A CURRENT STABILIZING DEVICE AND ITS DRIVING METHOD - An OLED display with a current stabilizing device employs a voltage boosting and current stabilizing device which is coupled between the driving-voltage line of the data driver and the data-power-supply wires to produce an output voltage higher than the driving voltage by boosting the driving voltage of the data driver, and then to maintain the current of the OLEDs at a constant level by performing current limiting, so that the problem of the current-ununiformity caused uneven luminance of the conventional OLED display can be solved, and the possibility that the luminance of the OLED panel will decay in a short period of time is reduce. | 04-05-2012 |
| 20120086356 | Current Leakage Protection Device for LED Applications - An electronic circuit for driving an LED device, including an LED, a driver for supply current to the LED array, and one or two current detection modules connected to one or both ends of the LED array for detecting current level and sending signals about the current level detected to the driver, which will break the circuit immediately upon detecting a fault condition on either side of the LED array based on the feedback from one or both current detection modules. | 04-12-2012 |
| 20120086357 | Light Emitting Diode Circuit, Light Emitting Diode Driving Circuit, Voltage Selection Circuit, and Method for Driving Thereof - A voltage selection circuit selecting a minimum voltage from the remainder voltages outputted from the light emitting diode channels is disclosed. The voltage selection circuit includes a first picking circuit, which has the first operation amplifiers, a positive input terminal, an output terminal, a negative input terminal, and an output stage. Each of the first operation amplifiers includes a positive input terminal, an output terminal, a negative input terminal, and an output stage. The positive input terminal receives one of the remainder voltages from one of the first ends of the light emitting diode channels. The output terminal outputs the minimum voltage, in which the output terminals of the first operation amplifiers are connected together. The negative input terminal is electrically connected to the output terminal. The output stage is electrically connected to the output terminal, in which the output stage has current sinking ability stronger than current sourcing ability. | 04-12-2012 |
| 20120086358 | CURRENT CONTROL CIRCUIT FOR LIGHT EMITTING DIODES - A current control circuit for light emitting diodes includes a power source, a current converting unit, a switch control unit and a number of transformers. The current control circuit provides direct current. The current converting unit is electrically connected to the power source and includes two couples of field effect transistors. The switch control unit is electrically connected to the current converting unit and is capable of providing a number of pulse signals to control the current converting unit. The two couples of field effect transistors receive pulse signals from the switch control unit and are alternately switched on and off. The direct current from the power source is converted into corresponding alternating current for the transformers. The current control circuit can provide stable and consistent current, enabling light sources to keep uniform brightness. | 04-12-2012 |
| 20120086359 | Light-Emitting Diode Driving Device, Light-Emitting Diode Device, and Method for Driving the Same - A light-emitting diode driving device includes a light-emitting diode driving chip, for driving the one or more light-emitting diode strings according to a feedback voltage associated with the one or more light-emitting diode strings, and a voltage limiter, having a terminal coupled to the light-emitting diode driving chip and another terminal coupleable to the one or more light-emitting diode strings, for generating the feedback voltage for provision to the light-emitting diode driving chip according to a bottom voltage of the one or more light-emitting diode strings, and limiting the feedback voltage not to exceed a preset level. | 04-12-2012 |
| 20120091912 | BACKLIGHT HAVING BLUE LIGHT EMITTING DIODES AND METHOD OF DRIVING SAME - An LED backlight array in which every LED, regardless of whether it is a red, green, cyan, or blue LED, contains a blue emitter. As each LED contains the same type of emitter, the backlight can be driven by a single blue driver circuit, rather than separate red, green, cyan, and blue drivers. That is, the present disclosure removes the need for red, cyan, and green driver circuits, allowing for simpler and cheaper backlights. Additionally, even though the LED backlight can contain LEDs of different colors, each has a blue emitter, and thus possesses similar aging characteristics. | 04-19-2012 |
| 20120091913 | Dynamic power control for a two wire process instrument - A process instrument includes a transducer, a two wire interface, a microprocessor, a digital to analog converter, a first control circuit, and a second control circuit. A current passing through the two wire interface indicates a condition of the transducer. The microprocessor is interfaced with the transducer. The digital to analog converter receives a signal from the microprocessor indicating a current value. The first control circuit is coupled to the digital to analog converter and adapted to control the current passing through the two wire interface to the current value. The second control circuit is coupled to the digital to analog converter and supplies current to a secondary load. | 04-19-2012 |
| 20120098458 | MULTICHIP PACKAGE STRUCTURE FOR DIRECTLY ELECTRICALLY CONNECTING TO AN AC POWER SOURCE - A multichip package structure includes a substrate unit, a light-emitting unit, a control module, a frame unit and a package unit. The substrate unit includes a first chip-placing region and a second chip-placing region. The light-emitting unit includes a plurality of light-emitting chips electrically connected to the first chip-placing region. The control module includes at least one current-limiting unit and the rectifier unit electrically connected to the second chip-placing region and the light-emitting unit. The frame unit includes a first annular colloid frame surrounding the light-emitting chips and a second annular colloid frame surrounding the current-limiting unit and the rectifier unit. The package unit includes a first package colloid body surrounded by the first annular colloid frame to cover the light-emitting chips and a second package colloid body surrounded by the second annular colloid frame to cover the current-limiting unit and the rectifier unit. | 04-26-2012 |
| 20120098459 | CIRCUIT FOR LIGHT EMITTING DIODES, RELATED INTEGRATED CIRCUIT AND CONTROL METHOD - A control circuit controls driving of an LED and a current-controlled device controls current through the LED. The current-controlled device has a control node. The control circuit has a driving circuit and a fault detector. In the driving circuit, a first comparator compares a current-setting signal with a sensing signal to generate a first comparison signal. Based on the first comparison signal, a buffer generates a driving signal to the control node and drives the current-controlled device. Within the fault detector, a second comparator compares the first comparison signal with the driving signal, generating a second comparison signal. A third comparator compares the driving signal with a threshold voltage, generating a third comparison signal. A fourth comparator compares the sensing signal with the current-setting signal, generating a fourth comparison signal. A decision maker enables or disables the driving circuit according to the second, third, and fourth comparison signals. | 04-26-2012 |
| 20120098460 | LIGHT EMITTING DEVICE - To provide a light emitting device capable of favorably controlling a color temperature of white light and having excellent color rendering properties, the light emitting device includes: a plurality of kinds of LED elements emitting ultraviolet rays or short-wavelength visible rays of different wavelengths; a single wavelength converting member containing fluorescent substances and converting the ultraviolet rays or short-wavelength visible rays emitted from the plurality of kinds of LED elements to derive white light; and a current control part varying current values to be supplied to the plurality of kinds of LED elements. | 04-26-2012 |
| 20120104972 | DRIVE CIRCUIT FOR LIGHT EMITTING DIODE ARRAY BASED ON SEPIC OR CUK TOPOLOGY - Features of the invention are related to drive circuits that provide both power factor correction and voltage conversion in a single circuit and in some instances drive an LED array. This single stage converter uses a SEPIC or Cuk topology and can operate LED arrays that have DC voltages above or below the AC line voltage. An output side filter and bulk energy storage device is placed at the output of the circuit. Bulk energy storage can be provided by an inductor, a capacitor, or a combination of an inductor and a capacitor. The output side filtering can be provided by a capacitor or a capacitor and an inductor. The circuit also includes a switch and a switch control device for controlling the switch to provide power factor correction. | 05-03-2012 |
| 20120112658 | COLOR TEMPERATURE CONTROL OF FLASH UNITS - A flash unit ( | 05-10-2012 |
| 20120112659 | LED Circuit Having LED Driving Circuit and Operation Method of the Same - A LED circuit is provided. The LED circuit comprises LED channels and a LED driving circuit. The LED driving circuit comprises: a current mirror, a dc-to-dc converter and current sink modules each connected between one of the LED channels and an output load to lock the voltage at the output load at a level of a setting voltage. The current mirror comprises an input branch to generate an input setting current according to a variable setting load and an output branch to generate an output setting current to further generate a variable reference voltage and the setting voltage. A control module of the dc-to-dc converter generates a driving voltage according the variable reference voltage and a feedback voltage to control a gate of the power MOS of the dc-to-dc converter to further control the operation of the LED channels. A LED circuit operation method is disclosed herein as well. | 05-10-2012 |
| 20120112660 | LED Circuit Having LED Driving Circuit with Smooth Transient Mechanism and Operation Method of the Same - A LED driving circuit having a smooth transient mechanism adapted in a LED circuit to drive a plurality of LED channels is provided. The LED driving circuit comprises: a dimming module, a dc-to-dc converter, a delay module and a plurality of current sink modules. A control module of the dc-to-dc converter generates a driving voltage according to the dimming voltage from the dimming module to control a gate of a power MOS to further turn on or turn off the LED channels. The delay module comprises delay units connected in series to delay the dimming voltage to generate a plurality of delay signals each at an output node of each of the delay units. Each of the current sink modules is connected to one of the LED channels to adjust the turn-on period according to one of the delay signals. A LED circuit operation method is disclosed herein as well. | 05-10-2012 |
| 20120112661 | LIGHTING DEVICE WITH MULTIPLE EMITTERS AND REMOTE LUMIPHOR - A lighting device including a plurality of electrically activated emitters having different peak wavelengths, at least one remote lumiphor arranged to receive at least some emissions from one of the emitters, and a primary electrically activated emitter spatially segregated and/or thermally insulated from a secondary electrically activated emitter. A lighting device including a plurality of electrically activated emitters spatially segregated from one another having different peak wavelengths, at least one lumiphor spatially segregated from one of the emitters, and a control device independently connected to each emitter or group of emitters. A method of producing a lighting device including a plurality of independently controllable electrically activated emitters. | 05-10-2012 |
| 20120112662 | SYSTEMS AND METHODS OF CONTROLLING THE OUTPUT OF A LIGHT FIXTURE - Systems and methods of controlling the output of an LED light fixture. The LED light fixture includes a plurality of light sources and a controller. The controller is configured to receive a first set of input data and determine a difference between the first set of input data and a second set of data stored in memory. The controller is also configured to set a slew time based on the determined difference and control the output of the light fixture based on the slew time. The slew time is inversely related to the determined difference between the first set of input data and the second set of data, and the slew time corresponds to the amount of time that the output of the light fixture is to take to transition from a present output of the light fixture to a new output of the light fixture. | 05-10-2012 |
| 20120112663 | LIGHT-EMITTING DIODE CONTROL CIRCUIT - A light-emitting diode (LED) control circuit includes a switch, a control signal generating circuit, a voltage conversion device, and N switching circuits. The voltage conversion device converts a first direct current (DC) power supply to a second DC power supply for supplying power to the control signal generating circuit. The control signal generating circuit outputs different control signals according to the switch to turn on or off the N switching circuits, thus power is supplied to corresponding groups of LEDs. | 05-10-2012 |
| 20120112664 | Lamp Circuit of Light Emitting Device - The invention provides a lamp circuit of a light emitting device, which comprises a capacitor, a rectification unit, a current limiting unit, and a light emitting device. The capacitor is connected to the two lamp contacts of the lamp holder of the electrical ballast to change the resonant frequency of the resonant circuit of the electrical ballast. The rectification unit is connected to the capacitor, and utilized to rectify a sine-wave voltage to a direct current voltage. The current limiting unit is connected to the rectification unit, outputting a direct current corresponding to the direct current voltage. The light emitting device is connected to the current limiting unit and the rectification unit to generate a light source. With the invention, the light emitting device can be installed directly in a lamp holder of a conventional fluorescent lamp. | 05-10-2012 |
| 20120112665 | Controlled Power Dissipation In A Lighting System - In at least one embodiment, a lighting system includes one, some, or all of a switch path, link path, and flyback path power dissipation circuits to actively and selectively control power dissipation of excess energy in a switching power converter of the lighting system. The flyback path power dissipation circuit dissipates power through a flyback path of the switching power converter. In at least one embodiment, the lighting system controls power dissipation through the flyback path by controlling a transformer primary current in the flyback path and, for example, limiting the primary current with a current source and dissipating power in the flyback switch and the current source. | 05-10-2012 |
| 20120119672 | Snow Shield for a Traffic Signal Light - The present invention is a snow deflecting LED traffic signal light apparatus with a The present invention is a snow deflecting LED traffic signal light apparatus having a dome shaped lens with an arc length that is proportionate to the arc length of a LED traffic signal light refracting lens and an encircling rim which has an inner diameter greater than the outer diameter of an LED traffic signal light visor. The apparatus may be affixed to existing LED traffic signal lights by a plurality of attachment members adapted to engage the visor of LED traffic signal lights. | 05-17-2012 |
| 20120119673 | LIGHT SOURCE SYSTEM AND METHOD FOR DRIVING LIGHT EMITTING DIODES - A light source system and a method for driving light emitting diodes (LEDs) are provided. The provided light source system includes: an LED module having a plurality of LED strings operated under a direct current (DC) output voltage; and a driving unit coupled to the LED module, and used for providing the DC output voltage by adopting a boost means and generating a plurality of pulsation current signals according to a setting signal so as to respectively drive the LED strings, in which the frequencies of the pulsation current signals are higher than a predetermined frequency. | 05-17-2012 |
| 20120119674 | CONSTANT CURRENT LED LAMP - A constant current LED lamp is provided with a linear driver circuit for driving multiple light emitting diodes (LEDs), or LED packages including multiple LED chips, connected in series. The driver circuit includes a rectifier circuit, a filter circuit, a stable voltage circuit, and a constant current circuit. The driver circuit allows the aggregate forward voltage drop of all the LEDs connected in series to approach the rectified input voltage to efficiently utilize the AC power from the mains. | 05-17-2012 |
| 20120119675 | POWER CONVERSION CIRCUIT FOR LIGHT EMITTING DIODE - A power conversion circuit for light emitting diode includes a voltage converter. The voltage converter has two receiving terminals and two output terminals. The two receiving terminals of the voltage converter are electrically coupled to the direct current power supply, and the output terminals output corresponding direct current signals according to the received direct current power supply, to drive a light emitting diode string. One of the output terminals has a positive potential, and another output terminal has a negative potential. | 05-17-2012 |
| 20120126718 | LED Array Inspection Fixture - An inspection fixture for inspecting an LED array of a circuit board under test through a power supply unit, includes: an inspection base having a testing platform with a plurality of pairs of anode and cathode probes corresponding to anode and cathode pins of the LEDs of the LED array, each pair being electrically connected to the power supply unit to constitute a power supply circuit; a carrier board used for carrying the circuit board under test and having through holes corresponding to the anode and cathode probes; and a pressing member for pressing the circuit board and driving the carrier board to move so as to enable the anode and cathode probes to pass through the through holes and come into contact with the anode and cathode pins of the LEDs, thereby supplying power to each of the LEDs to emit light through the power supply circuit. | 05-24-2012 |
| 20120139441 | Display Light Box with Programmably Separately-Lit Compartments - The present invention is a display light box comprising several compartments with partitioning walls shaped according to a translucent image on a frontal display panel. The compartments are illuminated by LEDs, which are installed a distance away from the picture panel to accomplish uniformity of the light on the panel, and driven by a controller so the LEDs may be turned on and off in any pre-determined sequence, accomplishing a changing presentation and thereby making the light box more attractive. The intensity of each compartment may be designed to be different, by the number of LEDs installed in the compartment or by the number of LEDs turned on at any given moment. In addition, LEDs in the same compartment may be turned on and off in certain pattern, accomplishing additional artistic impression. | 06-07-2012 |
| 20120139442 | Mains Dimmable LED Driver Circuits - A method of controlling a dimming level of one or more light emitting diodes (“LEDs”) includes receiving a phase cut dimming signal having a pulse width and frequency, generating a PWM signal having a duty cycle and frequency corresponding to the pulse width and frequency, respectively, of the phase cut dimming signal, and controlling a power converter coupled to the one or more LEDs with the generated PWM signal so that the dimming level of the one or more LEDs is a function of the duty cycle of the generated PWM signal. Example circuits for practicing this method and alternative methods are also disclosed. | 06-07-2012 |
| 20120139443 | LIGHT EMITTING DIODE DRIVING APPARATUS - A light emitting diode (LED) driving apparatus is provided, and which includes a first operational amplifier (OPA) having a positive input terminal receiving a predetermined voltage related to a current flowing through an LED string; a first resistor having a first end coupled to a negative input terminal of the first OPA and a second end coupled to a ground; a power transistor having a gate coupled to an output of the first OPA, a drain coupled to a cathode of the LED string and a source coupled to the first end of the first resistor; an error amplifier having a first input terminal coupled to the gate of the power transistor, a second input terminal receiving a reference voltage and an output terminal outputting a control voltage; and a power conversion stage providing a DC voltage to an anode of the LED string according to the outputted control voltage. | 06-07-2012 |
| 20120139444 | LIGHT EMITTING DEVICE - The disclosed light emitting device comprises at least one first light emitting element including at least one light emitting chip for emitting light having a wavelength of 400 to 500 nm and a phosphor; and at least one second light emitting element disposed adjacent to the first light emitting element to emit light having a wavelength of 560 to 880 nm. | 06-07-2012 |
| 20120139445 | ILLUMINATING APPARATUS AND DISPLAY APPARATUS - Provided is a backlight unit ( | 06-07-2012 |
| 20120146541 | CIRCUITRY TO CONTROL A SWITCHING REGULATOR - In one aspect, a circuit includes a switching regulator configured to provide power to a load, a current regulator circuit coupled to the load and a response circuit configured to provide a control signal to the switching regulator in response to electrical changes of the current regulator circuit. The control signal changes non-linearly with respect to the electrical changes at the current regulator circuit. | 06-14-2012 |
| 20120146542 | RAMP CONTROLLED DRIVER FOR SERIES/PARALLEL SOLID STATE LIGHTING DEVICES - An electronic OLED driver apparatus is presented, which includes a DC-DC converter stage with a waveform generator generating converter setpoints with profiles having minimum rise time and fall time values. | 06-14-2012 |
| 20120146543 | CONNECTOR FOR LIGHT SOURCE MODULE AND BACKLIGHT ASSEMBLY HAVING THE SAME - A connector for a light source module includes a body portion and a terminal portion. The body portion includes a first opening portion and a second opening portion. The first opening portion receives a portion of the light source module. The second opening portion receives a portion of a light source driver which drives the light source module. The terminal portion includes a first terminal and a second terminal. The first terminal is in the first opening portion of the body portion. The second terminal is connected to the first terminal. The second terminal is in the second opening portion of the body portion. | 06-14-2012 |
| 20120146544 | LIGHT EMITTING DIODE CIRCUIT - In light emitting diode circuits ( | 06-14-2012 |
| 20120153865 | LIGHT EMITTING DIODE MODULE REPLACEMENT FOR LINEAR FLUORESCENT - A lighting assembly for an existing linear fluorescent fixture includes a support, at least two opposing light emitting diodes (LED) on respective sides of the support configured to direct light in opposite general directions, a housing configured to cover the support and the at least two opposing LEDs; and end caps including electrical connectors to connect to electrical connections of the existing linear fluorescent fixture. | 06-21-2012 |
| 20120153866 | DC/DC CONVERTER WITH MULTIPLE OUTPUTS - Embodiments of the invention provide a DC/DC converter. The DC/DC converter includes a transformer, a switch controller and a driver controller. The transformer has a primary winding coupled to a power source, a first secondary winding provides a first output voltage to a first load, and a second secondary winding provides a second output voltage to a second load. The switch controller is coupled to the primary winding and controls a first switch coupled to the primary winding to control input power to the primary winding and to regulate the first output voltage based on a power requirement of the first load. The driver controller is coupled to the second secondary winding and generates a pulse modulation signal to alternately turn on and turn off a second switch coupled to the second secondary winding to regulate the second output voltage based on a power requirement of the second load. | 06-21-2012 |
| 20120153867 | LAMP UNIT WITH A PLURALITY OF LIGHT SOURCE AND TOGGLE REMOTE CONTROL METHOD FOR SELECTING A DRIVE SETTING THEREFOR - The present invention relates to a lamp unit ( | 06-21-2012 |
| 20120161666 | LIGHT EMITTING DIODE RETROFIT SYSTEM FOR FLUORESCENT LIGHTING SYSTEMS - An light emitting diode (LED) retrofit system for fluorescent lighting systems including a fluorescent lamp fixture is disclosed. The fluorescent lamp fixture includes a frame, an existing ballast configured to be coupled to an AC power source, and at least one connector coupled to an output of the existing ballast. The connector is configured to be coupled to a fluorescent lamp. The LED retrofit system includes at least one pin configured to be removably coupled to the connector, and to receive a high voltage AC signal from the existing ballast. The LED retrofit system includes at least one LED light source, transformer circuitry coupled to the pin and configured to receive the high voltage AC signal and to output a low voltage AC signal, and rectifier circuitry configured to receive the low voltage AC signal and generate a DC voltage to drive the LED light source. | 06-28-2012 |
| 20120169250 | LIGHTING APPARATUS AND CONTROLLING METHOD THEREOF - A lighting apparatus includes a first lighting module, a second lighting module, a rectifier, and a controller. The rectifier is used to rectify the AC power into an input power. The controller is coupled to the rectifier, the first lighting module, and the second lighting module for receiving the input power. When the input power is less than a reference value, the controller controls the first lighting module, the second lighting module, and the rectifier to form a first connection state. When the input power is greater than the reference value, the controller controls the first lighting module, the second lighting module, and the rectifier to form a second connection state. Also, a controlling method of the lighting apparatus is disclosed. | 07-05-2012 |
| 20120169251 | LIGHT EMITTING DIODE LAMP AND METHOD FOR FABRICATING THE SAME - A structure of a light emitting diode (LED) lamp and a method for fabricating the same are provided. In the structure of the LED lamp, LEDs are designed to approach an inner surface of a lampshade more closely, so that the LED lamp has high brightness and high light-use efficiency. The method for fabricating the LED lamp includes the following steps. First, a holder is provided and at least one flexible LED light bar is assembled on the holder. The flexible LED light bar is then forced to approach the holder, and the flexible LED light bar as well as the holder are inserted into the lampshade. After the flexible LED light bar and the holder are inserted into the lampshade, the flexible LED light bar is bent outward to approach the inner surface of the lampshade. After that, the holder and the lampshade are assembled on a socket. | 07-05-2012 |
| 20120176062 | LED MATRIX DRIVER GHOST IMAGE PREVENTION APPARATUS AND METHOD - LED drivers specially directed to LED matrix driver's ghost image prevention is disclosed. The LED driver receives an external input and decodes the input to produce a time multiplex timing on turning on an LED array. The LED driver inserts a dead time to the outputs and during this time the ghost image prevention circuit discharges the output stray capacitances to a predetermined level. | 07-12-2012 |
| 20120181950 | DRIVING CIRCUIT FOR SINGLE-STRING LED LAMP - A driving circuit for a single-string light-emitting diode (LED) lamp includes a push-pull converter. The push-pull converter converts an input low DC voltage (such as 12-19V) to a high DC voltage (such as above 200V) to supply power to the single-string LED lamp. The driving circuit controls a lamp current flowing through the single-string LED lamp by means of constant current and adjusts brightness of the single-string LED lamp by means of pulse-width modulation (PWM) dimming. In addition, the single-string LED lamp provides the standardization design for connectors of the driving circuit used to connect to the single-string LED lamp so that the driving circuit has better common-use characteristic. Moreover, the driving circuit does not need a current balance circuit and only needs a cheaper and general-purpose integrated circuit to control the push-pull converter to reduce design cost of the driving circuit. | 07-19-2012 |
| 20120181951 | LUMINAIRE AND METHOD FOR CONTROLLING A LUMINAIRE - The present invention refers to a luminaire comprising a plurality of directed light sources arranged in a surface of a three-dimensional body and a controller for controlling the operational state of the luminaire. The controller comprises a three-dimensional touch-sensitive surface. Each point on the touch-sensitive surface is allocated to a position of the body surface such that an operational state of at least one light source at a position of the body surface is changeable by touching a point on the touch-sensitive surface allocated to this position. A corresponding method for controlling a luminaire comprises the steps of detecting a touch at a point on a three-dimensional touch-sensitive surface and changing an operational state of at least one light source at a position of the body surface allocated to the touch point on the touch-sensitive surface. | 07-19-2012 |
| 20120187865 | LIGHT-MIXING MULTICHIP PACKAGE STRUCTURE - A light-mixing multichip package structure includes a substrate unit, a light-emitting unit, a frame unit, and a package unit. The light-emitting unit includes at least one first light-emitting module with red light-emitting chips and at least one second light-emitting module with blue light-emitting chips. The frame unit includes at least one first continuous colloid frame and at least one second continuous colloid frame respectively surrounding the first light-emitting module and the second light-emitting module. The package unit includes a transparent colloid body and a phosphor colloid body respectively covering the first light-emitting module and the second light-emitting module. Hence, when the red light source generated by matching the red light-emitting chips and the transparent colloid body and the white light source generated by matching the blue light-emitting chips and the phosphor colloid body are mixed with each other, the CRI of the light-mixing multichip package structure can be increased. | 07-26-2012 |
| 20120194096 | DRIVING CIRCUIT CAPABLE OF ENHANCING ENERGY CONVERSION EFFICIENCY AND DRIVING METHOD THEREOF - A driving circuit includes a switch, a detecting unit, and a current supply unit. A first terminal of the switch is used for coupling to a first terminal of a first LED group of a plurality of LED groups and receiving a first voltage, and a third terminal of the switch is used for coupling to a first terminal of a last LED group of the plurality of LED groups. The detecting unit is used for outputting a switch control signal to a second terminal of the switch for controlling turning-on and turning-off of the switch. The current supply unit has a plurality of input current terminals, and a ground terminal coupled to ground, where each input current terminal of the plurality of input current terminals is used for coupling to a second terminal of a corresponding LED group of the plurality of LED groups. | 08-02-2012 |
| 20120194097 | ILLUMINATING DEVICE AND CONTROLLING METHOD THEREOF - To a constant-current power supply whose output current can be variably set, light emitting modules can be connected in parallel. A control unit recognizes connection information outputted from an information output unit provided in each of the light emitting modules and varies the output current of the constant-current power supply. Drive can be controlled in response to a state of the connected light emitting modules such as the connecting number of light emitting modules. | 08-02-2012 |
| 20120200234 | ILLUMINATION DEVICE WITH WAKE-UP FUNCTION - An illumination device ( | 08-09-2012 |
| 20120206063 | LED Current Regulator - A circuit includes a plurality of first current-regulator portions, and a second current-regulator portion. The circuit further includes a plurality of switches coupled to the second current-regulator portion. The plurality of switches is configured to sequentially and selectively couple and decouple the first current-regulator portions to the second current-regulator portion to sequentially form a plurality of current regulators. The current regulators are configured to regulate current flow through light emitting diodes (LEDs), which are respectively associated with the first current-regulator portions. The circuit provides for substantially equal luminosity generation by the LEDs via the relatively lowering of voltage and current mismatch between the formed current regulators. | 08-16-2012 |
| 20120217897 | COMPACT AND ADJUSTABLE LED LIGHTING APPARATUS, AND METHOD AND SYSTEM FOR OPERATING SUCH LONG-TERM - A lighting system is provided whereby long operating life can be reasonably ensured by taking into account requirements of the application, characteristics of the LEDs, characteristics of the fixture containing said LEDs, the desired number of operating hours, and—via developed relationships—taking an iterative approach to supplying power to the LEDs. Through the envisioned compensation methodology and effective luminaire design, a relatively constant light level can be assured for a predetermined number of operating hours (possibly longer); this is true even if operating conditions change, known behavior of LEDs proves untrue over untested period of time, or some other condition occurs which would otherwise cause end-of-life prematurely and prevent the system from meeting the desired number of operating hours. | 08-30-2012 |
| 20120235596 | LED DRIVERS WITH AUDIBLE NOISE ELIMINATION AND ASSOCIATED METHODS - The present technology provides LED drivers with audible noise elimination and methods thereof. A burst dimming signal is used in the LED driver. A switch is serially coupled to the output capacitor of the LED driver and controlled by the burst dimming signal for eliminating any audible noise. | 09-20-2012 |
| 20120242247 | Operation of an LED Luminaire Having a Variable Spectrum - The invention relates to a method for controlling the operation of an LED luminaire ( | 09-27-2012 |
| 20120256559 | LED Solar Illuminator - An apparatus for illuminating a target surface, the apparatus having a plurality of LED arrays, where each of the arrays has a plurality of individually addressable LEDs, and where at least one of the arrays is disposed at an angle of between about forty-five degrees and about ninety degrees relative to the target surface, where all of the arrays supply light into a light pipe, the light pipe having interior walls made of a reflective material, where light exiting the light pipe illuminates the target surface, and a controller for adjusting an intensity of the individually addressable light sources. | 10-11-2012 |
| 20120262088 | LIGHTING SYSTEM FOR USE IN MOTION PICTURE AND VIDEO PRODUCTION - A method of lighting for use in motion picture and video production including, in various embodiments, the steps: providing lighting modules, each having one or more manual controls for controlling light output characteristics such as the intensity and hue of light produced and each capable of wirelessly communicating with other lighting modules over a wireless data network; interconnecting the lighting modules on the wireless data network; and adjusting the light produced by all lighting modules through adjustments using any one of the networked lighting modules. | 10-18-2012 |
| 20120268032 | COMBINATION LED DRIVER - A driver circuit for a Light Emitting Diode (LED) is disclosed. The driver circuit is capable of supporting a constant LED current circuit configuration as well as an external resistor-controlled LED current circuit configuration. By integrating both configurations into a single driver circuit, the either circuit configuration can be selected without requiring a different driver circuit. | 10-25-2012 |
| 20120268033 | LED LIGHTING DEVICE AND LIGHTING EQUIPMENT - An LED lighting device including a DC power source circuit, a high frequency generation circuit which includes an inverter circuit having switching elements and a resonance circuit having a series-connected inductor and condenser, in which the switching elements are on-off controlled by a no-load resonance frequency of the resonance circuit, and DC voltage input from the DC power source circuit is converted into a high frequency AC voltage, a rectification smoothing circuit having an input side which is connected between both edges of the condenser or both edges of the inductor; and a light emitting diode series connected to an output side of the rectification smoothing circuit. | 10-25-2012 |
| 20120274232 | LED Streetlight Circuit - An LED streetlight circuit includes an AC power supply, a switching circuit, an output controller and an LED array connected to the output controller. The switching circuit includes an EMI filter connected to the AC power supply, a power factor corrector connected to the EMI filter, a transformer connected to the power factor corrector, a rectifier/filter connected to the transformer, a standby power supply connected to the power factor corrector, a controller connected to the transformer, an luminance regulator connected to the controller, an optical coupler controlling loop connected to the controller and the rectifier/filter, and an optically controlled switch for connecting the standby power supply to the optical coupler controlling loop. The output controller includes a CC/CV controller connected to the rectifier/filter and the optical coupler controlling loop, an output voltage regulator connected to the CC/CV controller, and an output current regulator connected to the CC/CV controller. | 11-01-2012 |
| 20120274233 | CONSTANT CURRENT LED DRIVER - A constant current LED driver comprising an LED driver to supply constant current to an LED circuit provided with a protection element, an open loop sensor to sense the open loop of the LED circuit and a clamping control to maintain the voltage in the LED circuit at a predetermined level. The open loop sensor may be a high voltage detector. The clamping control controls the power supplied to the LED circuit in response to the detection signals of the open loop sensor. In one embodiment, the clamping control controls the power supplied to the LED circuit according to the power of the detection signals. | 11-01-2012 |
| 20120274234 | WIRELESS LIGHT CONTROLLER SYSTEM AND METHOD - In some examples, wireless light controller technology includes methods and apparatuses. In other examples, the technology includes one or more lights on a power line. Each light of the one or more lights is individually controllable via power line communication over the power line. The technology further includes a wireless device configured to transmit wireless communication. The wireless communication includes instructions to control the one or more lights. The technology further includes a wireless light controller configured to receive the wireless communication and transmit the instructions to control the one or more lights over the power line communication to the one or more lights. | 11-01-2012 |
| 20120280636 | SELF-DIMMING OLED LIGHTING SYSTEM AND CONTROL METHOD - Lighting devices and operating methods are presented in which voltage or current perturbations of an OLED caused by a user pressing the OLED are monitored while the OLED is providing general lighting, and one or more lighting control signals are generated based on the sensed perturbations. | 11-08-2012 |
| 20120280637 | CONFIGURABLE LED DRIVER/DIMMER FOR SOLID STATE LIGHTING APPLICATIONS - The disclosure is directed at a configurable light emitting diode (LED) dimmer for controlling a set of light fixture loads comprising: a power circuit; a primary digital controller for controlling the power circuit; a set of output current drivers, each of the set of output current drivers connected to one of the set of light fixture loads for controlling the associated light fixture load; a secondary digital controller for controlling the set of output current drivers; wherein the secondary controller transmits LED control information to control outputs of the set of output current drivers; and wherein the secondary digital controller provides digital feedback control information to the primary digital controller. | 11-08-2012 |
| 20120286699 | APPARATUS FOR TUNING OF EMITTER WITH MULTIPLE LEDS TO A SINGLE COLOR BIN - An apparatus is used to tune the color produced by an LED-based lamp to a desired color or color temperature. To support tuning, the lamp can include two or more independently addressable groups of LEDs. Color or color temperature is tuned by controllably dividing an input current among the groups of LEDs. The apparatus determines an optimal division of the input current based on a linear interpolation between measured values of color or color temperature produced by at least two different divisions of the input current. | 11-15-2012 |
| 20120299510 | ADAPTABLE LIGHTING SYSTEM - The present invention relates to a control unit ( | 11-29-2012 |
| 20120306406 | CONTROL DATA DETERMINATION FROM PRIMARY-SIDE SENSING OF A SECONDARY-SIDE VOLTAGE IN A SWITCHING POWER CONVERTER - A power distribution system includes controller of a switching power converter to control the switching power converter and determine one or more switching power converter control parameters. In at least one embodiment, the controller determines the one or more switching power converter control parameters using a resonant period factor from a reflected secondary-side voltage and an occurrence of an approximate zero voltage crossing of the secondary-side voltage during a resonant period of the secondary-side voltage. In at least one embodiment, the switching power converter control parameters include (i) an estimated time of a minimum value of the secondary-side voltage during the resonant period and (ii) an estimated time at which a current in the secondary-side of the transformer decayed to approximately zero. | 12-06-2012 |
| 20120319616 | SOLID STATE LIGHT FIXTURE WITH A TUNABLE ANGULAR DISTRIBUTION - A light fixture may include LEDs that each emits light into a particular zone on a lens, where each zone has its own focal properties. Each LED may be grouped into one (or more) subset(s) that corresponds to the zone(s) struck by its emitted light. The LEDs may be selectively electrically controllable, so that the amount of light transmitted through each zone may be controllable by the electrical control system of the fixture. Because light transmitted through different zones emerges from the fixture having different widths, the electrical control system can directly control the amount of light emerging at each width. By mixing relatively narrow light with relatively wide light in the proper proportions, the electrical control system of the fixture may produce light having any desired angular profile between “narrow” and “wide”. One may think of the fixture having a controller that features both a dimmer, which can control the optical power or brightness of the fixture | 12-20-2012 |
| 20120319617 | LED Lighting Device - The present invention provides a LED lighting device comprises a light source unit, a control unit and an analog to digital converter. The light source unit has at least a red LED, a green LED, a blue LED and an ultraviolet LED. The control unit causes the light source unit to emit mixing color light. the control unit has at least four current drivers connected the red LED, the green LED, the blue LED and the ultraviolet LED. The analog to digital convert connects to the control unit for converting an alternate-current (AC) power into a direct-current (DC) power, wherein the DC power are distributed to the control unit. | 12-20-2012 |
| 20120319618 | Method and a system for controlling a lighting system - A location commissioning method for a lighting system, having several lighting arrangements, includes selecting an illuminated position, assigning the position a position id, measuring light at the position, deriving light data associated with each lighting arrangement from the measured light, associating the light data with the position id, determining light transfer data from the light data and current drive data for the lighting arrangements, and storing in a light effect setting array for the position id. A light effect setting method includes requesting a selected light effect at a selected position, receiving a position id and a target light effect setting associated with the position, deriving the associated initial light effect setting array, for example by retrieving a stored one, determining the drive data for obtaining the target light effect setting, via the light transfer data in the array. | 12-20-2012 |
| 20120326626 | LED CONTROL SYSTEM - An LED control system includes a platform controller unit, a peripheral interface control chip connecting with the platform controller unit, and an LED unit connecting with the peripheral interface control chip. The platform controller unit outputs control instructions to the peripheral interface control chip. The control instructions outputted by the platform controller unit is transformed via programming the peripheral interface control chip, so that the on/off state of the LED unit as well as brightness and color of light emitted from the LED unit can be controlled by pulse signals output from the output ports of the peripheral interface control chip. | 12-27-2012 |
| 20120326627 | SYSTEMS AND METHODS FOR CONTROLLING WHITE LIGHT - Systems and methods for controlling the emission of white light are generally described. In certain embodiments, the systems and method relate to controlling white light emitted from a plurality of light-emitting diodes. | 12-27-2012 |
| 20120326628 | POWER CONTROL DEVICE, BACKLIGHT UNIT, AND LIQUID CRYSTAL DISPLAY DEVICE - Disclosed is a power control device, which generates PWM signals corresponding to obtained voltage signals, and which performs PWM control of power to be supplied to a load. The power control device is provided with a sampling section that performs sampling of the voltage signals, and a duty factor updating section, which updates the duty factor of the PWM signals on the basis of the sampling results. The sampling section is prevented from performing sampling during a masking period which is set as the on-period or the off-period of the PWM signals. | 12-27-2012 |
| 20130002164 | LED LIGHT FIXTURE - Light emitting diode (LED) light fixtures and methods of manufacturing LED light fixtures are provided. In one embodiment, an LED light fixture comprises a housing having a back surface, a first end portion, and a second end portion. The LED light fixture further comprises a support strip attached to the back surface of the housing adjacent to the first end portion. The support strip has at least one lamp holder configured to physically support a first end of an LED lamp. Also, the LED light fixture includes a power supply strip attached to the back surface of the housing adjacent to the second end portion. The power supply strip has at least one receptacle configured to physically support a second end of the LED lamp. The at least one receptacle is further configured to provide electrical power to the LED lamp. | 01-03-2013 |
| 20130002165 | Drivers for Loads Such as Light Emitting Diodes - An apparatus is disclosed that includes a first node coupleable to a power supply, a charge storage component coupled between a second node and a third node, and a first leg between the first node and second node. The first leg includes a first switching device. The apparatus includes a second leg between the first node and the third node. The second leg includes a second switching device. The apparatus includes a third leg between the second node and a fourth node. The third leg includes a third switching device. The apparatus includes a fourth leg between the third node and the fourth node, wherein the fourth leg includes a fourth switching device. The apparatus includes one or more contacts in one of the second leg or the third leg, the one or more contacts configured to be coupled to a load. Charging and load driving operations may be performed. | 01-03-2013 |
| 20130002166 | REMOTELY CONTROLLABLE TRACK LIGHTING SYSTEM - A remotely controllable track lighting system includes a track with lamps supported on the track that are individually controlled by a wireless remote. Each lamp may be set to different intensity levels (e.g., high, mid, low, off) or to the same intensity level. All lamps may be set, upon initially turning on the lamps or at another time, to previously set intensity levels. The track system may also be powered via a wall switch where initially turning on the lamps via the wall switch causes all of the lamps to return to their previously set intensity levels or the user can move the wall switch off then on within a short period of time (e.g., 3 seconds) to cause all of the lamps to be set high. | 01-03-2013 |
| 20130009567 | PHOSPHOR-CENTRIC CONTROL OF COLOR CHARACTERISTIC OF WHITE LIGHT - Lighting systems and devices offer dynamic control or tuning of a color characteristic, e.g. color temperature, of white light. The exemplary lighting systems and devices are used for general lighting applications that utilize solid state sources to pump remotely deployed phosphors. Two or more phosphors emit visible light of different visible spectra, and these spectra are somewhat broad, e.g. pastel, so that combinations thereof can approach white light temperatures including points along the black body curve. Independent adjustment of the intensities of electromagnetic energy emitted by the solid state sources adjusts levels of excitations of the phosphors, in order to control a color characteristic of the visible white light output of the lighting system or device. | 01-10-2013 |
| 20130026948 | LIGHT SOURCE MODULE AND DISPLAY APPARATUS HAVING THE SAME - A light source module includes first and second light sources. The first light source includes a blue light-emitting body emitting blue light and a red fluorescent material disposed around the blue light-emitting body emitting red light by virtue of being excited by the blue light. The second light source is disposed adjacent to the first light source, and includes a green light-emitting body emitting green light. The blue and green light-emitting materials may include a light-emitting diode (LED) chip including substantially the same material. Accordingly, since a variation of light efficiency of the light source module with respect to temperature is small, a color feedback system may be omitted, and color reproducibility may be high. | 01-31-2013 |
| 20130033195 | LIGHT SOURCE APPARATUS - A light source apparatus includes at least a light-emitting module. The light-emitting module includes a hollow rod-shaped base and a plurality of LED chips. The hollow rod-shaped base has an outer surface and an inner surface opposite to the outer surface, in which the inner surface surrounds a space. The LED chips are disposed in flip chip bonding way on the outer surface of the hollow rod-shaped base, in which the LED chips are disposed surrounding the space. | 02-07-2013 |
| 20130038239 | Lighting Device Controlling Circuit Module - The present invention relates to a lighting device controlling circuit module, comprising: a first bridge rectifier unit, a second bridge rectifier unit, a power factor correction unit, a controlling unit, a feedback unit, at least one switching unit, and at least one boost/buck unit. The lighting device controlling circuit module of the present invention can be made as an electronic chip for easily being integrated into an LED fluorescent lamp, therefore, a user can replace the traditional fluorescent lamp with the LED fluorescent lamp having the lighting device controlling circuit module so easily, and the user does not need to identify which two contacts of the LED fluorescent lamp are used as the power-inputting terminal before replacing the traditional fluorescent lamp by the LED fluorescent lamp. | 02-14-2013 |
| 20130038240 | Background Light Effects LED Light Fixture With Light Guided Second Light Sources - The present invention relates to an illumination device comprising:
| 02-14-2013 |
| 20130038241 | Methods, Apparatus and Articles of Manufacture to Calibrate Lighting Units - A system and appertaining method calibrate a color LED light unit comprising at least first-, second-, and third-color LEDs, comprising: a) defining a target color on a color map to calibrate; b) selecting initial calibration coefficients associated with the target color; c) storing the initial or updated calibration coefficients in a non-volatile memory of the light unit; d) controlling the light unit to drive the LEDs to attempt to emit the target color, producing an attempted color, utilizing the calibration coefficients; e) measuring the attempted color to determine if it matches the target color within a predefined tolerance; f) if the attempted color matches the target color, then terminating the method; g) if the attempted color does not match the target color, then performing the following; h) selecting a color component; i) adapting at least one calibration coefficient associated with the selected color component; and j) performing (c)-(i) again. | 02-14-2013 |
| 20130049635 | Lighting System for Growing Plants - A lighting system includes a first LED array which includes a plurality of LED sub-arrays, and a plurality of inputs operatively coupled to a corresponding LED sub-array through a controller. The intensity of light emitted by the LED sub-arrays is adjustable in response to adjusting input signals provide by the inputs. In this way, the intensity of light emitted by the LED sub-arrays is adjustable, in response to adjusting the input signals, to drive a wavelength spectrum of the first LED array to match the action spectrum of a physiological activity of a plant. | 02-28-2013 |
| 20130057178 | LIGHT EMITTING DIODE (LED) SYSTEM HAVING APPLICATION SPECIFIC INTEGRATED CIRCUIT (ASIC) AND WIRELESS SYSTEM - A light emitting diode (LED) system includes a substrate, an application specific integrated circuit (ASIC) die on the substrate having a pair of power contacts, at least one light emitting diode (LED) on the substrate controlled by the application specific integrated circuit (ASIC) die, a wireless receiver on the substrate configured to receive signals for controlling the application specific integrated circuit (ASIC) die, and a wireless transmitter in signal communication with the wireless receiver configured to send the signals. | 03-07-2013 |
| 20130063043 | VOLTAGE RECTIFIER - A voltage rectifying unit may comprise a first and a second charging unit connected in parallel. The charging units may each comprise a first rectifying diode and a second rectifying diode connected in series. A third and a fourth rectifying diode may be connected in series between the first and the second rectifying diodes and may have a first connecting node therebetween. A first capacitor and a second capacitor may be connected in series between the first and the second rectifying diodes and in parallel with the third and fourth rectifying diodes, and may have a second connecting node therebetween. The nodes of the charging units may be connected to an AC input wave form wherein the voltage rectifying unit may be configured to provide a continuously positive wave form to at least one load connected thereto. | 03-14-2013 |
| 20130063044 | LED ILLUMINATION SYSTEM - An LED illumination system includes a DC power supply, at least two LED illumination lamp sets and at least two power circuits corresponding to the LED illumination lamp sets. The DC power supply provides sufficient electric power for the LED illumination lamp sets and is connected to the LED illumination lamp sets via the power circuits. The invention supplies electric power required by the LED illumination lamp sets via a single DC power supply without an extra DC power supply, hence the cost is lower. Moreover, the DC power supply is located remote from the LED illumination lamp sets, hence high temperature generated by the DC power supply does not affect lighting and lifespan of the LED illumination lamp sets. The hazard of electric shock by inadvertently touching the AC power source while replacing lamps in the LED illumination lamp sets can also be avoided to improve safety. | 03-14-2013 |
| 20130069558 | STACKED, NON-INVERTED DIELECTRICALLY ISOLATED, ORGANIC LIGHT EMITTING DIODE DISPLAY FORMED ON A SILICON-ON-INSULATOR BASED SUBSTRATE AND METHOD OF SAME - A display and method of making a display, comprising first and second stacked, non-inverted, dielectrically isolated, organic light emitting diodes formed on a silicon on insulator substrate. The display includes a means for applying both a positive or negative voltage across the stack, and a common intermediate control node situated between the diodes. The control node is electrically connected through vias to receive a control voltage signal, such that altering the relationship between the control voltage signal and the voltage applied across the stack regulates the actuation of the individual diodes. | 03-21-2013 |
| 20130069559 | CAMERA FLASH SYSTEMS AND METHODS FOR ADJUSTING FLASH EXPOSURE POWER - Camera flash systems and methods for data transmission between cameras and flash devices remote to the camera for remotely adjusting flash exposure power of the flash devices are disclosed. The camera flash systems include a transmitter and a receiver. The transmitter receives camera output data from a camera that includes exposure power data for at least one flash device remote to the transmitter and user input data that includes adjustments to the flash exposure power data for the at least one flash device. The transmitter is operable to transmit the adjusted flash exposure power data to the at least one flash device. The receiver receives the adjusted flash exposure power data from the transmitter and is operable to transmit the adjusted flash exposure power data to a flash device. | 03-21-2013 |
| 20130069560 | LIGHT SOURCE APPARATUS - A light source apparatus according to the present invention includes: a plurality of light emitting substrates arranged in matrix form, each having at least one light source; an intermediate substrate provided between respective rows of the plurality of light emitting substrates; and a driving unit that outputs a drive signal for driving the light sources, wherein a first supply wiring for supplying the drive signal to the light source provided on each of the plurality of light emitting substrates is printed on each of the light emitting substrates, and a first connection wiring for electrically connecting the first supply wirings printed on two light emitting substrates sandwiching the intermediate substrate is printed on the intermediate substrate. | 03-21-2013 |
| 20130082621 | PRIMARY SIDE PFC DRIVER WITH DIMMING CAPABILITY - A primary side PFC driver circuit is disclosed that includes a switch control circuit for commanding a switch to allow an inductor coupled to an output load (e.g., LEDs) to transfer energy provided by an input voltage source. The switch control circuit provides two signals for commanding the switch. A first signal having a first frequency, with a duty cycle in proportion to the input voltage amplitude, commands the switch to allow the average input current to be proportional to the input voltage amplitude. A second signal having a second frequency higher than the first frequency pulses the output load with substantially constant current pulses based on a value of the first signal (e.g., while the first signal is high). The current pulses produce a substantially constant current in the output load. | 04-04-2013 |
| 20130088166 | OPTOELECTRONIC DEVICE - An optoelectronic device that radiates mixed light including a first semiconductor light source which radiates light in a first wavelength range at a first intensity, a second semiconductor light source which radiates light in a second wavelength range at a second intensity, a third semiconductor light source which radiates light in a third wavelength range at a third intensity, a resistance element having a temperature-dependent electrical resistance, and a semiconductor light source control element that controls the intensity of the third semiconductor light source. | 04-11-2013 |
| 20130093354 | MULTIPLE-LED EMITTER FOR A-19 LAMPS - An LED (light-emitting diode) high-power wide-angle A-19 lamp needs only a single LED emitter having multiple LEDs. The LED A-19 lamp includes a lamp envelop structure configured for transmission of light therethrough and a base structure coupled to a lower portion of the lamp envelop structure for coupling to an external power source. The dimensions of the lamp envelop structure and the base structure conform to requirement of a conventional A-19 lamp. The LED emitter includes a plurality of light-emitting diodes (LEDs) disposed in a single recess in a substrate and a single lens disposed over the LEDs and the substrate. In a specific embodiment, the emitter is configured to consume electrical power of 30 Watts or higher and to provide light distribution at 130 degrees or wider at 50% peak intensity without additional secondary optical components. | 04-18-2013 |
| 20130093355 | LED DRIVING CIRCUIT - Disclosed is an LED driving circuit. The LED driving circuit includes a power supply, an LED array to receive a signal of the power supply, an IC connected to the LED array, and an inrush current restricting part to gradually increase an output current recognized in the IC. The inrush current restricting part comprises at least one of a frequency adjusting part and a current adjusting part. | 04-18-2013 |
| 20130099697 | Multi-Channel Driver Equalizer - The disclosed multi-channel driver equalizer circuit matches currents in multiple strings of illumination devices at low current levels by using an analog equalizer to sequentially couple the output of a reference amplifier in series with each current source amplifier in a current limit loop of the driver equalizer circuit to correct the offsets of the current source amplifiers, resulting in the matching of string currents on average. | 04-25-2013 |
| 20130113392 | LUMINANT TILE ASSEMBLY - The luminant tile assembly contains a positioning seat, a luminant tile member configured on the positioning seat, and a control device electrically connected to the luminant tile member via the positioning seat. The luminant tile member contains a layered structure and a number of connectors for electrically connecting the positioning seat and the layered structure. The luminant tile assembly can be quickly and conveniently installed on and detached from a wall, floor, or ceiling where various and versatile lighting effects are provided. | 05-09-2013 |
| 20130119893 | CONFORMAL POWER ADAPTER FOR LIGHTED ARTIFICIAL TREE - A conformal power adapter for insertion into a lighted artificial tree and for converting power received from an external power source to a power usable by the lighted artificial tree. The power adapter includes an elongated housing including a first end, and a second end; a printed circuit board assembly including power-converting circuitry for converting an input electrical power to an output electrical power for use by a lighted artificial tree having a hollow trunk section, the printed circuit board assembly located substantially within the elongated housing; a power cord secured to the first end of the housing and in electrical connection with the power converting electronics, the power cord adapted to transmit power from an external power source to the power-converting circuitry. The elongated housing enclosing the printed circuit board assembly is sized to fit substantially within the hollow trunk portion of the lighted artificial tree. | 05-16-2013 |
| 20130119894 | Multiple DALI streams over single DALI interface on a wireless communication protocol personal area network - Present invention is a system for which multiple DALI streams could be addressed over one DALI interface on a single wireless communication protocol (e.g., ZigBee) personal area network (PAN). Allowing multiple DALI streams to be controlled over a single ZigBee PAN reduces complexity, costs, and allows for more efficient utilization of bandwidth greatly increasing effective DALI bandwidth supported by a single wireless gateway. This enables multiple physical DALI Controllers to be attached, and also allows DALI Controllers which are unable to support the special DALI stream selection command to communicate with multiple streams on a single ZigBee PAN. Due to the diverse nature of DALI Controllers and control devices, having an interoperable approach is critical. This system allows for a baseline set of capabilities with DALI devices that do not support the additional reserved DALI commands and a set of advanced capabilities for devices that do. | 05-16-2013 |
| 20130127370 | EL DISPLAY PANEL MODULE, EL DISPLAY PANEL, INTEGRATED CIRCUIT DEVICE, ELECTRONIC APPARATUS AND DRIVING CONTROLLING METHOD - Disclosed herein is an EL display panel module, including: a pixel array section including a panel serving as a substrate, and a plurality of pixels disposed in a matrix on the panel and each including a pixel circuit, and a light emitting region; and a driving circuit for driving the pixel circuits such that a threshold value correction operation is carried out commonly for plural ones of the pixel circuits which are connected to each signal line and writing of a signal potential corresponding to a gradation value is executed time-sequentially for the individual pixel circuits, the driving circuit applying a reset potential lower than a reference potential for the threshold value correction to the plural ones of the pixel circuits before first writing of the signal potential after the threshold value correction operation is completed; the pixel array section and the driving circuit being mounted on the same substrate. | 05-23-2013 |
| 20130134901 | DRIVING APPARATUS FOR LIGHT EMITTING DIODE AND CONTROL METHOD THEREOF - There are provided a driving apparatus for a light emitting diode (LED) which may accurately display a desired color of light by adjusting a color coordinate value in accordance with an input brightness value, and a control method thereof. The driving apparatus includes a control unit receiving a brightness value and a color coordinate value of an LED desired to be controlled and controlling LED driving by adjusting the color coordinate value in accordance with the received brightness value; and a driving unit driving the LED in accordance with controlling of the control unit. | 05-30-2013 |
| 20130141010 | ADJUSTABLE OUTPUT SOLID-STATE LAMP WITH SECURITY FEATURES - Disclosed herein is a remotely adjustable lighting system with security features. The lighting system includes a lamp (e.g., luminaire) which carries solid-state light sources and a sensor. The solid-state light sources emit visible light at an adjustable output intensity. The sensor is responsive to line-of-sight wireless signals, and the lamp increases and decreases the output intensity of the light sources in response to output signals of the sensor. The lamp provides security features by selectively accepting and rejecting instructions carried by the line-of-sight wireless signals to vary the output intensity of the light sources. | 06-06-2013 |
| 20130141011 | ILLUMINATION SYSTEM - An illumination system includes: a plurality of lighting devices; a control device for controlling the lighting devices; and a remote controller for remotely setting a control content to be performed by the control device. The remote controller includes: a light property setting unit for setting a light property of a control target lighting device; a pointer for emitting visible light to point the target lighting device; a projection position acquiring unit acquiring a projection position of the visible light; and a remote controller transmitting unit for wirelessly transmitting the property information indicative of the light property and the projection position information. | 06-06-2013 |
| 20130141012 | LED-Based Lighting Power Supplies With Power Factor Correction And Dimming Control - A power supply for powering one or more loads includes a boost circuit with power factor correction (PFC) that provides an operating voltage from an electrical power source, and a dimmer detection circuit that determines a dimming level applied to the electrical power source, and generates a pulse width modulated (PWM) signal based upon the dimming level. The power supply also includes one or more current control circuits, each current control circuit being associated with each of the one or more loads, and coupled in series with the operating voltage, its associated load, and a ground of the power supply, so as to control a current through its associated load in response to the PWM signal. | 06-06-2013 |
| 20130141013 | LIGHT EMISSION APPARATUS, ILLUMINATION SYSTEM AND ILLUMINATION METHOD - A light emission apparatus includes: a wiring board; a plurality of LED chips that are disposed on an LED chip mounting surface of the wiring board and are grouped into a plurality of LED groups; a wavelength conversion member that is disposed at a position corresponding to the LED chip mounting surface of the wiring board, converts a wavelength of light emitted by the corresponding LED chips, and emits first-order light with a different color temperature for each wavelength conversion region; a current supply section that supplies a driving current to the LED chips independently for each LED group through the wiring board; and a control section that controls the current amount supplied for each LED group in response to a control signal. The control section independently controls timing of starting to light the LED groups in accordance with the light control level. | 06-06-2013 |
| 20130141014 | PHOSPHOR-CENTRIC CONTROL OF COLOR OF LIGHT - Lighting devices and/or systems offer dynamic control or tuning of color of light. The lighting systems utilize sources, such as solid state sources, to individually pump a number of different phosphors of types having relatively high degrees of color purity. The phosphor emissions, however, are still broader than the traditionally monochromatic color emissions of LEDs. The different phosphors can be independently excited to controllable levels, by individually controlled sources rated for emission of energy of the same spectrum. Adjustment of intensities of electromagnetic energy emitted by the sources independently adjusts levels of excitations of the phosphors selected to emit different colors of relatively high purity and thus the contributions of pure colors to the combined light output, for example, to enables color adjustment of the light output over a wide range of different selectable colors encompassing much of the gamut of visible light. | 06-06-2013 |
| 20130147389 | Auto Configuring Runway Lighting System - This invention relates to an auto configuring runway lighting system. The auto configuring runway lighting system comprises a plurality of lighting apparatus. Each lighting apparatus comprises a means for determining geographic location information of the lighting apparatus. A central controller communicates with the plurality of lighting apparatus to obtain the geographic location information and controls the status of the plurality of lighting apparatus based on the geographic location information. | 06-13-2013 |
| 20130147390 | FLASHLIGHT - The present invention relates to a flashlight having a rotary switch for switching different brightness levels and/or luminous colors, which rotary switch has a battery cartridge arranged rotatably in a flashlight housing and having spring-mounted electrical contacts arranged at the end, which electrical contacts are each connected to an electrical contact face or an electrical contact zone of a contact plate. In order to provide a switchover option for a flashlight with different switching steps that has a simple design, is light and can be operated reliably, the invention proposes that the battery cartridge is held securely in the flashlight housing by a fixing sleeve and that the battery cartridge is rotated in the flashlight housing by a rotary button that passes longitudinally axially through the fixing sleeve. | 06-13-2013 |
| 20130147391 | KINETIC FLAME DEVICE - An apparatus creating a flickering flame effect. The apparatus includes a housing with an interior space with first and second stages. A drive mechanism generates a time varying electromagnetic field extending into the first stage. A first pendulum member is pivotally mounted in the interior space of the first stage and includes first and second magnets on first and second ends, with the first end proximate to the drive mechanism such that the first magnet interacts with the varying electromagnetic field to cause movement of the pendulum member. The apparatus includes a second pendulum member pivotally mounted in the second stage with a magnet on a first end proximate to the second end of the first pendulum member. A flame silhouette element extends from the second pendulum member, and a light source transmits light onto the flame silhouette, which is moving due to the magnetic coupling of the pendulum members. | 06-13-2013 |
| 20130154505 | KEYPAD ASSEMBLY - A keypad assembly includes a panel, a plurality of keys protruding from the panel, a light-emitting assembly, and a control unit. The light-emitting assembly includes a cover board and a plurality of light-emitting members mounted on the cover board. The cover board is hinged to the panel such that the cover board is capable of rotating relative to the panel to enable the light-emitting members to illuminate the keys. The control unit includes an angle sensor and a controller. The angle sensor senses an included angle between the cover board and the panel and creates signals of the included angle. The controller receives the signals and accordingly controls the light-emitting members to be turned on or turned off. | 06-20-2013 |
| 20130154506 | DISPLAY DEVICE - A display device includes: a high-side potential variable-voltage source which outputs a high-side output potential and a low-side potential variable-voltage source which outputs a low-side output potential; an organic EL display unit in which pixels are arranged; a high-side potential difference detecting circuit which detects a high-side potential applied to a first pixel and a low-side potential difference detecting circuit which detects a low-side potential applied to a second pixel; a high-side potential voltage margin setting unit and a low-side potential voltage setting unit which regulate the output potential of the high-side potential variable-voltage source and the low-side potential variable-voltage source to set a potential difference between the high-side potential of the first pixel and a reference potential to a predetermined potential difference and set a potential difference between the low-side potential of the second pixel and a reference potential to a predetermined potential difference; and a signal processing circuit. | 06-20-2013 |
| 20130169187 | COLOR TEMPERATURE ADJUSTING METHOD OF SOLID STATE LIGHT EMITTING DEVICE AND SOLID STATE LIGHT EMITTING DEVICE USING THE METHOD - A color temperature adjusting method of solid state light emitting device, including steps: providing a main light source which emits main light of a first color temperature; providing an adjusting light source, wherein the adjusting light source comprises a red light source, a green light source and a blue light source; and adjusting currents applied to the adjusting light sources to obtain an adjusting light, wherein the adjusting light mixes with the main light of the main light source to obtain an outgoing light of a second color temperature. The second color temperature is different from the first color temperature. The outgoing light has a chromaticity coordinate at a Plank's curve on a CIE 1931 chromaticity coordinates chart. | 07-04-2013 |
| 20130175946 | POWERLINE COMMUNICATION CONTROL OF LIGHT EMITTING DIODE (LED) LIGHTING FIXTURES - A powerline communication control system for controlling a lighting unit, such as an LED lighting unit, including a master controller for receiving lighting unit control inputs from a lighting controller and generating corresponding lighting unit command outputs in a lighting system command format and transmission mode and superimposing the lighting unit command outputs onto the power distribution system and at least one lighting slave unit for receiving the lighting command signal, separating the lighting command signal from the power signal and for providing lighting unit control commands to the at least one lighting unit to control illumination thereof. | 07-11-2013 |
| 20130187566 | CONVERSION CONTROL CIRCUIT AND CONVERTER THEREOF - A conversion control circuit for controlling the operation of a power transistor is disclosed. The conversion control circuit includes a voltage-regulating switch and a control unit. One end of the voltage-regulating switch connects to an external voltage input terminal while another end connects to a voltage-regulating capacitor. The conversion control circuit converts an input voltage inputted from the external voltage input terminal into a power voltage. The power voltage is for supplying operating power to the conversion control circuit. The control unit receives a feedback voltage signal to generate a voltage-regulating pulse signal and a turn-on pulse signal, which are used for controlling the operations of the voltage-regulating switch and the power transistor, respectively and for defining a charging period for charging the voltage-regulating capacitor. A converter including the described conversion control circuit is also disclosed. | 07-25-2013 |
| 20130193872 | Multi-Functional Decorative Lighting - A decorative lighting system designed for both residential and commercial use is provided, which offers homeowners and business owners a means by which to selectively decorate their homes and businesses in a year-round fashion. Users can install the decorative lighting either a single time or few times, and thereafter manipulate a plurality of predetermined color schemes using a pre-programmed control panel. A plurality of methods and means for controlling the programming are also disclosed. | 08-01-2013 |
| 20130193873 | POWERING AND/OR CONTROLLING LEDS USING A NETWORK INFRASTRUCTURE - The subject matter disclosed herein provides methods and apparatus, including computer program products, for controlling and power lighting units connected to a network controller. In one aspect there is provided a method that may include receiving at a first input power from a power supply; receiving at a second input one or more illumination control packets from a data processing device via one or more network connections; transmitting from a first output power to one or more lighting units; and powering from a second output an illumination level of one or more colors associated with the one or more lighting units in accordance with the one or more illumination control packets via the one or more network connections. Related apparatus, systems, techniques and articles are also described. | 08-01-2013 |
| 20130200820 | SCRIM LED LIGHTING APPARATUS - Embodiments of the present invention provide a lighting apparatus comprising at least one scrim LED unit, an interface unit, and at least one portable remote control, wherein each portable remote control unit is configured to exchange information with the interface unit. Each scrim LED unit comprises a first scrim fabric and a plurality of LED lighting units. Each of the plurality of LED lighting units is attached to a reverse side of the first scrim fabric. Each scrim LED unit comprises a plurality of electrical cables capable of having multiple LED lighting units spaced thereupon. A main connector interconnects the interface unit to each of the plurality of electrical cables. Each LED lighting unit comprises an LED light and a mounting frame, wherein each LED light is detachably coupled to the mounting frame and each mounting frame affixes the LED lights onto the reverse side of the first scrim fabric. | 08-08-2013 |
| 20130207569 | METHOD OF CONTROLLING AN ELECTROLUMINESCENT DISPLAY AND RELATED CONTROL CIRCUIT - A control circuit is for generating upper and lower voltages that define a range of a data voltage for controlling a driving transistor of an electroluminescent component coupled to a supply line through the driving transistor. The control circuit may include a first input terminal configured to have a common voltage, and a pair of amplifiers coupled together at the first input terminal and configured to generate the upper voltage and the lower voltage to correspond to a difference between the common voltage and, respectively, first and second analog intermediate voltages representing respective threshold values of the upper voltage and of the lower voltage. The control circuit may include an auxiliary amplifier configured to adjust the upper voltage and the lower voltage based upon fluctuations of an input voltage, and generate the common voltage to correspond to the difference between the input voltage and a reference voltage. | 08-15-2013 |
| 20130207570 | METHOD FOR GENERATING LIGHT WITH A DESIRED LIGHT COLOUR BY MEANS OF LIGHT-EMITTING DIODES - The invention relates to a method for generating light with a desired light colour by using at least one light-emitting diode emitting red r-LED, at least one light-emitting diode emitting green g-LED, at least one light-emitting diode emitting blue b-LED and at least one light-emitting diode emitting white w-LED. In order to improve the CRI value, according to the invention it is proposed that weighting values ascertained according to the RGB algorithm and further weighting values ascertained according to the RGBW algorithm be combined together by using a correction factor. | 08-15-2013 |
| 20130221873 | LED COLOR CHANNELS INCLUDING PHOSPHOR-BASED LEDS FOR HIGH LUMINOUS EFFICACY LIGHT SOURCE - A light source apparatus is disclosed. The light source includes an array of light emitting diodes (LEDs) including at least three color channels, the at least three color channels includes: a yellow-greenish channel including a YAG:Ce phosphor emitter pumped by a royal blue InGaN LED; a red channel including a second LED, the second LED being either phosphor-based LED or AlInGaP LED; and a blue green channel including a third LED wherein the third LED is a royal blue InGaN LED. The light source further includes a mixing barrel around the array of LEDs for mixing light generated from the three color channels to simulate a black body radiator at different correlated color temperatures. Each of the at least three color channels includes one or more LEDs emitting the same color. | 08-29-2013 |
| 20130241436 | Multiwavelength Solid-State Lamps with an Enhanced Number of Rendered Colors - The configuration of polychromatic sources of white light, which are composed of at least two groups of colored emitters, such as light-emitting diodes (LEDs), is disclosed. Based on a novel approach of the assessment of quality of white light using, for example, 1269 test color samples from the enhanced Munsell palette, the spectral compositions of light, such as white light, composed of two to five (or more) narrow-band emissions with the highest number of colors relevant to human vision rendered almost indistinguishably from a reference source, such as a blackbody radiator, are introduced. An embodiment of the current invention can be used, in particular, for configuring polychromatic sources of white light with the ultimate quality capable of rendering of all colors of the real world. | 09-19-2013 |
| 20130241437 | Device for generating light - An illumination system ( | 09-19-2013 |
| 20130249434 | MULTI-CHIP LIGHT EMITTING DEVICE LAMPS FOR PROVIDING HIGH-CRI WARM WHITE LIGHT AND LIGHT FIXTURES INCLUDING THE SAME - A multi-chip lighting emitting device (LED) lamp for providing white light includes a submount including first and second die mounting regions thereon. A first LED chip is mounted on the first die mounting region, and a second LED chip is mounted on the second die mounting region. The LED lamp is configured to emit light having a spectral distribution including at least four different color peaks to provide the white light. For example, a first conversion material may at least partially cover the first LED chip, and may be configured to absorb at least some of the light of the first color and re-emit light of a third color. In addition, a second conversion material may at least partially cover the first and/or second LED chips, and may be configured to absorb at least some of the light of the first and/or second colors and re-emit light of a fourth color. Related light fixtures and methods are also disclosed. | 09-26-2013 |
| 20130271029 | ILLUMINATION APPARATUS AND METHOD FOR GENERATING WHITE LIGHT - An illumination apparatus includes a first light-emitting device, a second light-emitting device, and a third light-emitting device. The light emitted from the third light-emitting device is selectively mixed with the light emitted from the first light-emitting device or the second light-emitting device to form a white light having a chromaticity coordinate point substantially located on a Black Body Locus. A color of the light emitted from the third light-emitting device is determined by linear relationships between chromaticity coordinate points corresponding to wavelengths of the lights emitted form the first light-emitting device and the second light-emitting device and corresponding to a color temperature of the white light. A method for generating a white light is also disclosed herein. | 10-17-2013 |
| 20130278169 | BATTERY POWERED WIRELESS DMX LED LIGHTING SYSTEM - A DMX based wireless, light emitting device and system including wireless modules that are battery powered and wirelessly receive and transmit DMX to other modules or a controller device. The modules can optionally be hard wired to both a DMX signal and external power supply. An integrated processor can independently control a pre-selected lighting effects, channels, addresses, programs and other light effect features. | 10-24-2013 |
| 20130278170 | DETECTION CIRCUIT FOR KEYBOARD CABLE - One embodiment of a display backlight driver integrated circuit can be configured for operation in at least two different ways. A first method transfers data from an EEPROM to hardware registers prior to regular operation. A second method also transfers data from an EEPROM to registers. However, hardware registers can be overwritten with data accepted from a control bus, prior to regular operation. A keyboard driver IC can detect the presence or absence of a cable to an LED. If the cable is absent, the driver IC will not supply power for the LED. One embodiment of a keyboard and display backlight control system can be configured to allow substantially independent operation. | 10-24-2013 |
| 20130278171 | DISPLAY BACKLIGHT DRIVER IC CONFIGURATION - One embodiment of a display backlight driver integrated circuit can be configured for operation in at least two different ways. A first method transfers data from an EEPROM to hardware registers prior to regular operation. A second method also transfers data from an EEPROM to registers. However, hardware registers can be overwritten with data accepted from a control bus, prior to regular operation. A keyboard driver IC can detect the presence or absence of a cable to an LED. If the cable is absent, the driver IC will not supply power for the LED. One embodiment of a keyboard and display backlight control system can be configured to allow substantially independent operation. | 10-24-2013 |
| 20130278172 | SYSTEM FOR GENERATING NON-HOMOGENOUS LIGHT AND ASSOCIATED METHODS - A lighting system including a plurality of luminaires capable of generating polychromatic light having a dominant wavelength in the visible spectrum and arranged into an array and a computerized device electrically coupled to the plurality of luminaires so as to selectively operate each individual luminaire to produce source light varying with each other and with time. The computerized device operates the luminaire such that each luminaire emits a source light, the source lights combining to form a combined light having selected characteristics. The source lights, when perceived directly, recreate a lighting scenario having varying lighting characteristics. | 10-24-2013 |
| 20130278173 | LIGHTING SYSTEM FOR ACCENTING REGIONS OF A LAYER AND ASSOCIATED METHODS - A system and method for accenting regions of a layer including a lighting system including a plurality of light sources operable to emit polychromatic light and a layer having two or more regions configured to diffusively scatter light within a wavelength range while absorbing light not within the wavelength range. The regions may be configured to represent recognizable characters or images, and may form a sequence. The lighting system may highlight the regions individually or simultaneously. The layer may be attachable to a surface and may further include non-highlighted regions. The system may also include appliqués applied to a surface and a cover layer transparent to certain wavelengths of light that the appliqués scatter. | 10-24-2013 |
| 20130278174 | COMBINED SURFACE MOUNT AND IN-WALL MOUNT DIMMER - A lighting dimmer for surface mount or in-wall mount comprising: a lighting dimmer main body, the main body comprising: a lighting control board positioned in the main body for controlling one or more light emitting diode based light sources; a surface mount attachment connected to the main body for facilitating surface mount connection of the lighting dimmer; a controller connected to the lighting control board and configured to input a command to the lighting control board, and; a surface portion configured to receive an insert for in-wall mounting of the lighting dimmer. | 10-24-2013 |
| 20130285570 | LED DRIVING CIRCUIT, LED DRIVING DEVICE AND DRIVING METHOD - A LED driving circuit applied to a LED module includes a read address generating unit, a memory cell and a driving unit. The read address generating unit receives a clock signal and outputs a reading signal. The memory cell is coupled to the read address generating unit and generates an output signal in accordance with the reading signal. The driving unit is coupled to the memory cell, receives the output signal and the clock signal and outputs a driving signal to the LED module. A LED driving device and a driving method are also disclosed. | 10-31-2013 |
| 20130293143 | INTELLIGENT POWER SUPPLY SYSTEM - An intelligent power supply system includes a transformer and at least one gate unit. The transformer is configured to electrically connect to a higher voltage power source and to convert the higher voltage to a first reduced voltage. The transformer provides the first reduced voltage via a first output. The gate unit is operable to receive the first output and provide a second output at a second reduced voltage. At least one low voltage electrical device is electrically connectable to the second output. The transformer may electrically connect to a higher voltage power source at a first location, with the gate unit disposed at a second location remote from the first location, whereby the higher voltage power source is not at or near the second location, which may comprise a display location with various electrically powered display devices that are powered by the reduced voltage provided by the gate unit. | 11-07-2013 |
| 20130293144 | LIGHT SOURCE LIGHTING DEVICE AND LUMINAIRE - A light source lighting device includes a first light source | 11-07-2013 |
| 20130293145 | BONDING AN OPTICAL ELEMENT TO A LIGHT EMITTING DEVICE - A device is provided with at least one light emitting device (LED) die mounted on a submount with an optical element subsequently thermally bonded to the LED die. The LED die is electrically coupled to the submount through contact bumps that have a higher temperature melting point than is used to thermally bond the optical element to the LED die. In one implementation, a single optical element is bonded to a plurality of LED dice that are mounted to the submount and the submount and the optical element have approximately the same coefficients of thermal expansion. Alternatively, a number of optical elements may be used. The optical element or LED die may be covered with a coating of wavelength converting material. In one implementation, the device is tested to determine the wavelengths produced and additional layers of the wavelength converting material are added until the desired wavelengths are produced. | 11-07-2013 |
| 20130313999 | GAMMA VOLTAGE GENERATING CIRCUIT AND DISPLAY DEVICE INCLUDING THE SAME - A gamma voltage generating circuit includes a gamma voltage distribution unit configured to divide a reference voltage to generate a plurality of initial gamma reference voltages, and a gamma voltage selection unit configured to generate gamma reference voltages by selecting first gamma reference voltages, corresponding to a first color pixel, from among the plurality of initial gamma reference voltages and second gamma reference voltages, corresponding to a second color pixel, from among the plurality of initial gamma reference voltages. Herein, an output part of initial gamma reference voltages selected in common as the first and second gamma reference voltages is shared with input parts of the first and second gamma reference voltages. | 11-28-2013 |
| 20130320880 | RMS RESPONDING VOLTAGE CONVERTER FOR LED LIGHTS - An RMS responding voltage converter for LED lights is disclosed. | 12-05-2013 |
| 20130328501 | CONTROL DEVICE AND ILLUMINATION DEVICE - According to an embodiment, a control device includes a first calculator and a second calculator. The first calculator is configured to calculate a wavelength of light to be emitted from a light source whose emission intensity is controllable and which has at least one light emitting element at predetermined time intervals in a manner that adjusts the wavelength by a predetermined amount of change within a range of a first wavelength of light to be emitted at a start of adjustment to a second wavelength of light to be emitted at an end of the adjustment, the calculated wavelength being set as a third wavelength. The second calculator is configured to calculate an emission intensity of the light emitting element at the third wavelength. | 12-12-2013 |
| 20140015439 | TROFFER LIGHTING CONTROL SYSTEM - A lighting control system for a troffer LED lighting system is provided with a power supply having at least three pairs of wires extending therefrom. The first pair of wires is in connection with a power source. The second pair of wires is connected to a socket mounted to the troffer housing. The third pair of wires is connected to at least one LED. A socket resistor is mounted to socket to set a baseline brightness for the troffer LED lighting system, and an efficiency plug is provided for insertion into the socket. The efficiency plug includes an internal resistance to change the brightness of the troffer LED lighting system to a predetermined level. | 01-16-2014 |
| 20140015440 | CONSTANT CURRENT CONTROL CIRCUIT - A constant current control circuit includes a current source output module and at least two output circuits. Each of the output circuits includes an automatic constant current regulating module, a power transistor drive and control module electrically coupled to automatic constant current regulating module, and a load module formed of one or more LED devices and electrically coupled to a power transistor drive and control module. The constant current control circuit in operation tracks changes in current of each output circuit and regulates the currents of all the output circuits accordingly. | 01-16-2014 |
| 20140015441 | DRIVER DEVICE AND DRIVING METHOD FOR DRIVING A LOAD, IN PARTICULAR AN LED ASSEMBLY - Driver device ( | 01-16-2014 |
| 20140028216 | OLN LIGHT CHANGE/OPTIMIZATION SYSTEM - Light management system for an outdoor lighting network (OLN) having lighting units, the system including a central control apparatus ( | 01-30-2014 |
| 20140028217 | Pixel Driver Circuit And Pixel Circuit Having The Pixel Driver Circuit - A pixel driver circuit for driving a light-emitting element and a pixel circuit having the pixel driver circuit are provided. The pixel driver circuit includes a data line, address lines, switch thin film transistors, feedback thin film transistors and drive thin film transistors. The pixel circuit may include an organic light emitting diode, which is driven by the pixel driver circuit. | 01-30-2014 |
| 20140035482 | NETWORKED SYSTEM OF INTELLIGENT LIGHTING DEVICES WITH SHARING OF PROCESSING RESOURCES OF THE DEVICES WITH OTHER ENTITIES - A system of network-connected lighting devices also offers a distributed processing function that utilizes processor and/or memory resources if/when available in some or all of the lighting devices. In the examples, a resource manager receives a job for distributed processing using shared available resources. The resource manager identifies lighting devices having resources of the processors and/or the memories available for the distributed processing function. The resource manager distributes tasks and/or data of the received job through a communications network to identified lighting devices, for distributed processing. The resource manager also receives results of distributed processing for the received job, from the identified lighting devices through the communications network. The received results are processed to produce a composite result for a response to the received job. | 02-06-2014 |
| 20140035483 | TWO ENDED FAUX CANDLE - A faux candle having dual light sources including a housing extending longitudinally and having a top end and a bottom end, which creates the appearance of a candle, having an interior space extending longitudinally throughout the housing, a first light source in the interior space of the housing located at the top end of the housing and projecting upward from the interior space to provide a candle flame simulation, a second light source in the interior space of the housing located at the bottom end of the housing for projecting light downward from the end of the housing, and a power source means located in the interior space for powering the light sources. | 02-06-2014 |
| 20140042930 | LCD DEVICE CONTROL SYSTEM AND LCD DEVICE - A liquid crystal display (LCD) device control system or an LCD device includes a control circuit board includes a sequence control circuit, a panel includes a source drive circuit, and a scalar circuit board includes a first voltage reduction module. The sequence control circuit is configured with a main power end and an auxiliary power end. The main power end of the sequence control circuit and the source drive circuit are coupled to the first voltage reduction module to supply power. | 02-13-2014 |
| 20140042931 | Illuminating Device - To a constant-current power supply whose output current can be variably set, light emitting modules can be connected in parallel. A control unit recognizes connection information outputted from an information output unit provided in each of the light emitting modules and varies the output current of the constant-current power supply. Drive can be controlled in response to a state of the connected light emitting modules such as the connecting number of light emitting modules. | 02-13-2014 |
| 20140049188 | Illuminating Device - To a constant-current power supply whose output current can be variably set, light emitting modules can be connected in parallel. A control unit recognizes connection information outputted from an information output unit provided in each of the light emitting modules and varies the output current of the constant-current power supply. Drive can be controlled in response to a state of the connected light emitting modules such as the connecting number of light emitting modules. | 02-20-2014 |
| 20140055057 | CURRENT REGULATION APPARATUS - A current regulation apparatus is provided. The current regulation apparatus includes a trans unit, a first switching unit, a voltage detection unit, a voltage comparison unit, and a control unit. The trans unit includes an auxiliary winding unit. The first switching unit controls an operation of the trans unit. The voltage detection unit detects a voltage induced to the auxiliary winding unit. The voltage comparison unit compares a voltage detected by the voltage detection and a reference voltage. The control unit adjusts a turn-on section of the first switching unit according to an output voltage of the voltage comparison unit. | 02-27-2014 |
| 20140062335 | ELECTRICAL POWER CONTROL OF A FIELD EMISSION LIGHTING SYSTEM - The present invention relates to a field emission lighting arrangement, comprising an anode structure at least partly covered by a phosphor layer, an evacuated envelope inside of which an anode structure is arranged, and a field emission cathode, wherein the field emission lighting arrangement is configured to receive a drive signal for powering the field emission lighting arrangement and to sequentially activate selected portions of the phosphor layer for emitting light. The same control regime may be applied to an arrangement comprising a plurality of field emission cathodes and a single field emission anode. Advantages with the invention includes increase lifetime of the field emission lighting arrangement. | 03-06-2014 |
| 20140062336 | LIGHT EMITTING DEVICE WITH CERAMIC CONVERSION MATERIAL - The invention relates to a light delivery device comprising a conversion element and one or several LEDs, which emit light into the conversion element. The light is then converted and emitted with a high radiant flux. | 03-06-2014 |
| 20140084810 | ILLUMINATION CIRCUIT FOR A TIME-OF-FLIGHT CAMERA - An illumination circuit for a time-of-flight camera includes at least one light source. At least one switch is configured to influence the at least one light source. At least one current limiter is disposed in a current path of the at least one light source. A parallel capacitor is disposed parallel to the at least one current limiter. The at least one light source can include a light-emitting diode and the at least one current limiter can include at least one of a limiting resistor, a limiting switch and limiting diode. | 03-27-2014 |
| 20140103835 | MULTIPLE-FILAMENT TUNGSTEN-HALOGEN LIGHTING SYSTEM HAVING MANAGED TUNGSTEN REDEPOSITION - Described embodiments include a tungsten-halogen lighting system and a method. A described system includes a sealed glass envelope containing a halogen gas. The system includes at least two tungsten filaments enclosed within the glass envelope. Each tungsten filament of the at least two tungsten filaments is configured to generate light in response to a flow of electric current. The system includes a controller circuit configured to manage the at least two tungsten filaments in response to a tungsten filament management schedule. The tungsten filament management schedule includes controlling tungsten redeposition by the halogen regenerative cycle on each tungsten filament of the at least two tungsten filaments. | 04-17-2014 |
| 20140103836 | ELECTRONIC BALLAST OR OPERATING DEVICE FOR ILLUMINATION MEANS HAVING PROGRAMMABLE OR CONFIGURABLE CONTROL UNIT - In the case of an electronic ballast ( | 04-17-2014 |
| 20140117877 | NATURAL DAYLIGHT EMULATING LIGHT FIXTURES AND SYSTEMS - A natural light emulation system employs at least one lighting assembly for providing light simulating natural light. The lighting assembly has several light engines around a light well. The light engines each have a number of light sources capable of providing light to the light well. A controller calculates lighting parameters for natural light received at a location on earth, at a day of the year and time of day. The controller then selectively operates light sources to provide light of a calculated spectrum and intensity that simulates light of a given direction. A master controller may be employed to control a group of lighting assemblies, or to control several different groups which may be simulating natural light relating to different locations, time of day or day of the year parameters. | 05-01-2014 |
| 20140125249 | LIGHT EMITTING MODULE AND METHOD OF MANUFACTURING THE SAME - There is provided a light emitting module and a method of manufacturing the same. The light emitting module includes a circuit board, and a plurality of light emitting devices disposed on the circuit board, wherein the plurality of light emitting devices include at least one light emitting device having a driving voltage less than an average driving voltage of the plurality of light emitting devices and at least one of light emitting devices adjacent thereto having a driving voltage greater than the average driving voltage. In the light emitting module, variations in driving voltages between light emitting modules that may be caused due to driving voltage dissipation in a light emitting device may be minimized. | 05-08-2014 |
| 20140132182 | FEEDBACK CIRCUIT FOR NON-ISOLATED POWER CONVERTER - A feedback circuit for a power converter (e.g., a non-isolated converter) is disclosed. The feedback circuit may include a sense circuit coupled to receive an output current of the converter. A sense voltage may be generated across the sense circuit and a voltage-to-current converter may be used to convert the sensed voltage into a feedback signal representative of the output current. The voltage-to-current converter may include a variable shunt regulator, resistor, and transistor. A voltage across the shunt regulator may change in response to a change in voltage across the sense circuit, and the feedback signal may change in response to a change in the voltage across the shunt regulator. A controller may be coupled to receive the feedback signal from the feedback circuit and may control switching of a power switch to regulate the output current based at least in part on the feedback signal. | 05-15-2014 |
| 20140139136 | LIGHTING DEVICE AND CONTROL DEVICE FOR CONTROLLING A PLURALITY OF LIGHT-EMITTING DIODES IN AN OPEN-LOOP AND/OR CLOSED-LOOP MANNER - The invention relates to a lighting device having at least one light-emitting diode module ( | 05-22-2014 |
| 20140139137 | SMART PHONE CONTROLLED WIRELESS LIGHT BULB - The claimed subject matter provides systems and/or methods that employ a control component integrated in a light bulb to control the light bulb wirelessly. The wireless light bulb can include a light source, a control component that manages operation of the light source, an input component that wirelessly obtains input signals that can be utilized by the control component, and a power source. For instance, the light source can be one or more light emitting diodes (LEDs) and/or the power source can be one or more batteries. Moreover, the input component can receive the input signals (e.g., radio frequency, infrared, . . . ) from a remote control, a sensor, a differing wireless light bulb, a radio frequency identifier (RFID) tag, etc. Further, the wireless light bulb can be mechanically coupled to a lighting fixture, where the lighting fixture may or may not be electrically coupled to an alternating current (AC) power source. | 05-22-2014 |
| 20140145643 | Current Regulator - The present application describes a current regulator for providing a regulated current from an input voltage. The current regulator comprises a voltage regulator circuit, operable to provide a regulated voltage, which comprises a plurality of Zener diodes connected in parallel. | 05-29-2014 |
| 20140152194 | LIGHT EMITTING DIODE GROW LIGHT FOR PLANT GROWING APPLICATIONS - Disclosed herein is an apparatus and method for providing light to grow a plant. An LED array comprises blue light in a band between about 350 nm and 550 nm, red light in a band at about 630 nm and dark red light in a band at about 660 nm. An input device is provided for interrupting the dark red band at 660 nm in order to continue to provide light the plant while the plant continues to flower. | 06-05-2014 |
| 20140159610 | CAMERA FLASH SYSTEMS AND METHODS FOR ADJUSTING FLASH EXPOSURE POWER - Camera flash systems and methods for data transmission between cameras and flash devices remote to the camera for remotely adjusting flash exposure power of the flash devices are disclosed. The camera flash systems include a transmitter and a receiver. The transmitter receives camera output data from a camera that includes exposure power data for at least one flash device remote to the transmitter and user input data that includes adjustments to the flash exposure power data for the at least one flash device. The transmitter is operable to transmit the adjusted flash exposure power data to the at least one flash device. The receiver receives the adjusted flash exposure power data from the transmitter and is operable to transmit the adjusted flash exposure power data to a flash device. | 06-12-2014 |
| 20140159611 | DRIVER DEVICE AND DRIVING METHOD FOR DRIVING A LOAD, IN PARTICULAR AN LED UNIT - The present invention relates to a driver device and a corresponding driving method for driving a load ( | 06-12-2014 |
| 20140167642 | HANDHELD DEVICE FOR COMMUNICATING WITH LIGHTING FIXTURES - Control of lighting fixtures in a lighting network may be distributed among the lighting fixtures. The lighting fixtures may be broken into groups that are associated with different lighting zones. At least some of the lighting fixtures will have or be associated with one or more sensors. Within the overall lighting network or the various lighting zones, the lighting fixtures may share sensor data from their sensors. Each lighting fixture may process sensor data provided by its own sensor, a remote standalone sensor, or lighting fixture, and process the sensor data according to the lighting fixture's own internal logic to control operation of the lighting fixture. The lighting fixtures may also receive control input from other lighting fixtures, control nodes, light switches, and commissioning tools. The control input may be processed along with the sensor data according to the internal logic to further enhance control of the lighting fixture. | 06-19-2014 |
| 20140191682 | LED Light Control and Management System - An LED light and communication system is in communication with a broadband over power line communications system. The LED light and communication system includes at least one optical transceiver light fixture. The optical transceiver light fixture includes a plurality of light emitting diodes, at least one photodetector, and a processor. A facility management unit is in communication with the processor. The facility management unit is constructed and arranged to control the operation of the optical transceiver light fixture. | 07-10-2014 |
| 20140191683 | DEVICE FOR IMPROVING COMPATIBILITY OF SOLID STATE LIGHT SOURCES WITH PHASE-CUT DIMMERS - A device suppresses flicker and improves compatibility of a lamp including at least one solid state light source, the lamp being operably connected to a control circuit, such as a dimmer circuit. The device includes a connector enabling connection of the solid state light source to a lamp socket configured to receive an incandescent light source, and an adapter circuit connected in parallel with the at least one solid state light source when the solid state light source is connected to the socket via the connector. The adapter circuit provides a resistive path for current to pass through the lamp, during all or part of the AC mains cycle. | 07-10-2014 |
| 20140197757 | LIGHTING DEVICE AND METHOD FOR OPERATING THE LIGHTING DEVICE - The invention relates to a lighting device having a first number of light-emitting elements and having a second number of control elements, operating contactlessly, for controlling the light-emitting elements such as especially for switching the light-emitting elements on or off and/or for controlling their brightness, the second number being less than or equal to the first number, the light-emitting elements being controlled contactlessly by a movement of at least one hand of a user over two or more control elements. The invention also relates to a relevant method. | 07-17-2014 |
| 20140203728 | LIGHT EMITTING DEVICE PACKAGE - A light emitting device package includes a substrate, a light emitting device disposed on the substrate, a reflector surrounding the light emitting device, and an encapsulant encapsulating the light emitting device. The reflector includes a silicon-based polymer which is a main body portion, and a silicon oxide layer disposed at least on a portion of a surface of the silicon-based polymer. | 07-24-2014 |
| 20140203729 | LIGHTING DEVICE HAVING GROUPS OF SOLID STATE LIGHT EMITTERS, AND LIGHTING ARRANGEMENT - A lighting device comprising first, second and third groups of solid state light emitters, the first group emitting light having a dominant wavelength of 430 to 490 nm, the second group at 525 to 575 (in some devices 540 to 575 nm), the third group at 610 to 640 nm. In some devices, wavelength of light from emitters in first and second groups, and light from second and third groups, differs by at least 70 nm. Some devices emit light having CRI Ra of at least 70 when first, second and third groups of emitters are illuminated. Also, a lighting arrangement comprising first, second and third groups as above, in addition to a fourth emitter emitting light of dominant wavelength outside the ranges for the first, second and third groups, and not more than 10 nm different from a dominant wavelength of a color on an item to be illuminated. | 07-24-2014 |
| 20140210372 | CONSTANT-CURRENT CIRCUIT APPARATUS OF PARALLEL LED LUMINAIRES - A constant-current circuit apparatus for a parallel LED luminaire is disclosed. The circuit apparatus includes an electrical connector unit and one or more parallel-connected constant-current LED light module unit. The electrical connector unit includes an input unit and an output unit connected in parallel. The current from the power source flow through the input unit of the first parallel LED luminaire to its constant-current LED light modules and through its output unit to the next parallel | 07-31-2014 |
| 20140210373 | PROGRAMMABLE LED LIGHTING DEVICE AND METHOD - The invention relates to a lighting device and method, in particular underwater, including: a plurality of spotlights comprising at least one light source nude up of a set of LEDs, the spotlights being connected to an electric power source; and at least one control housing connected to said power source and communicating with each one of the spotlights, said control housing being provided with a cut-off device configured to transmit control instructions via a power cut-off member to the spotlights, which are provided with an on-board detector having a microprocessor configured such as to interpret said control instructions and to adjust a signal capable of modifying the colour of each one of the LEDs that make up the set of LEDs, characterised in that the control instructions transmitted by the cut-off device are transmitted in the form of a code made up of combinations of power cut-offs with various durations. | 07-31-2014 |
| 20140217923 | DIMMABLE LED ILLUMINATING SYSTEM - A dimmable LED illumination system includes a power converting circuit and a lamp. The power converting circuit is electrically connected to a power source to convert electric power of the power source into a voltage signal. The lamp includes a DC/DC converter and a LED module, wherein the DC/DC converter is electrically connected to the power converting circuit to convert the voltage signal into a corresponding current signal. The LED module is electrically connected to the DC/DC converter to be driven by the current signal to emit light. By adjusting a voltage provided by the power converting circuit, a current provided by the DC/DC converter could be adjusted as well, which changes a luminance of the LED module. | 08-07-2014 |
| 20140217924 | ORGANIC EL DISPLAY APPARATUS - In an organic EL display apparatus, a chromaticity change of image display due to deterioration in an OLED is corrected. The organic EL display apparatus includes an EC element layer formed of one kind or a plurality of kinds of electrochromic elements which are disposed on an OLED portion and develop colors. Each of the electrochromic elements has a peak in a transmission spectrum during development of a color in any one of the emission wavelength bands of the pixels corresponding to the plurality of colors. The electrochromic element receives a DC voltage from a driver so as to be driven. Chromaticity of image display is adjusted by controlling a color development intensity of the electrochromic element by using the DC voltage which is applied by the driver. | 08-07-2014 |
| 20140232292 | ILLUMINATION TECHNIQUES AND DEVICES - Illumination techniques and related devices are disclosed. In some cases, a lighting device configured as described herein may include a front luminaire configured to emit white light and a back luminaire configured to emit colored light. The lighting device can be operatively coupled with controller circuitry programmed or otherwise configured, for example, with one or more algorithms which control the light output of the front and/or back luminaire so as to provide tunability. In some cases, device output may be controlled so as to: (1) simulate lighting conditions/patterns corresponding to the daytime/nighttime on Earth; (2) support/alter physiological processes; and/or (3) provide a specific ambient lighting for a given space. In some instances, a system of multiple such lighting devices can be provided, and in some cases, communication between constituent lighting devices may be provided. In some instances, the lighting device may be mountable as a sconce or other lighting fixture. | 08-21-2014 |
| 20140232293 | LIGHT-EMITTING DEVICE PACKAGE - The present application provides a light-emitting device package. The light-emitting device package includes a package substrate includes at least one via hole. A light-emitting device is mounted on the package substrate so as to overlap with the via hole. A bonding layer is formed between the light-emitting device and the package substrate and includes a eutectic bonding material. | 08-21-2014 |
| 20140239845 | SYSTEM FOR GENERATING NON-HOMOGENOUS LIGHT AND ASSOCIATED METHODS - A lighting apparatus comprising a plurality of luminaires, each luminaire comprising a controller configured to operate the luminaire and positioned in communication with a computerized device. Each luminaire may be selectively operable to emit source light characterized by a dominant source light wavelength within a range from 390 nanometers to 750 nanometers. Additionally, at least two of the plurality of luminaires may be operable to emit source lights with different dominant source light wavelengths, and such that one or more source lights emitted by the plurality of luminaires may combine to form a combined light at a distance from the plurality of luminaires defined as a combining distance. Furthermore, the dominant source light wavelength of at least some of the luminaires of the plurality of luminaires may be variable with time. | 08-28-2014 |
| 20140252984 | LED BACKLIGHT DRIVING CIRCUIT, LCD DEVICE, AND DRIVING CIRCUIT - The present disclosure provides a light emitting diode (LED) backlight driving circuit, a liquid crystal display (LCD) device, and a driving circuit. The LED backlight driving circuit includes a timing control module, an LED lightbar, and a driver module coupled with an output end of the LED lightbar. The driver module includes at least one constant current driver chip driving the LED lightbar to display. The timing control module successively outputs a driving signal to the constant current driver chip. The driving signal includes data units which are arranged in sequence, and each data unit storing a current duty and a phase delay of one LED lightbar. The constant current driver chip directly reads data of a corresponding data unit and drives the LED lightbar to display. | 09-11-2014 |
| 20140252985 | ELECTRONIC DEVICE AND LIGHT-EMITTING MODULE - A light-emitting module includes at least one first light-emitting component, at least one second light-emitting component, a first driving component, a second driving component, and a control component. The first light-emitting component is configured to emit a white light having a first predetermined color temperature according to a first power of a first driving signal. The second light-emitting component is configured to emit another white light having a second predetermined color temperature according to a second power of a second driving signal. The control component is configured to separately output the first and second driving signals, and to separately adjust the first and second powers of the first and second driving signals, so as to mix the white lights having the first and second predetermined color temperatures to output a white light having an output color temperature. | 09-11-2014 |
| 20140252986 | SMART MULTI-DIMENSIONAL LIGHT CELL ARRANGEMENT - The present invention relates to a novel arrangement of light cells on a flexible or solid background into a smart multi-dimensional light source capable of unlimited configuration, which comprises of a mother cell that is connected to one source of electrical power and gets charged, subsequently charging all the other light cells and thus illuminating the entire light source with unlimited configuration, and which is capable of being wirelessly switched on or off by means of a smart phone device. | 09-11-2014 |
| 20140265919 | UPDATABLE LIGHTING FIXTURES AND RELATED COMPONENTS - Systems and methods related to lighting fixtures for solid-state light sources are disclosed. In one embodiment, a lighting fixture includes a driver module and a communications module. The driver module is configured to execute driver program code, which causes the driver module to generate a drive output that drives one or more solid-state light sources. To provide updates, the communications module is configured to receive updated driver program code from a remote device and send the updated driver program code to the driver module. The driver module is configured to erase the driver program code and write the updated driver program code received from the communications module to memory. In this manner, updates can be provided to the lighting fixture without having to remove the lighting fixture from a support structure. | 09-18-2014 |
| 20140265920 | LED Light Control and Management System - An LED light and communication system is in communication with a broadband over power line communications system. The LED light and communication system includes at least one optical transceiver light fixture. The optical transceiver light fixture includes a plurality of light emitting diodes, at least one photodetector, and a processor. A facility management unit is in communication with the processor. The facility management unit is constructed and arranged to control the operation of the optical transceiver light fixture. | 09-18-2014 |
| 20140285111 | Lighting Control System and Lighting Control Method - According to one embodiment, a lighting control system includes information on a corresponding relationship between each of a center area and a peripheral area and each of lighting fixtures which illuminates each of the one region and the peripheral region, in a gradation control region including the center area and the peripheral area. The CPU executes a gradation control in which an illumination range and illuminance of the gradation control region is changed by performing a dimming control of each of the lighting fixtures so that, in brightness of the gradation control region, brightnesses of the center area and the peripheral area are changed while causing the center area to be brighter than the peripheral area in proportion to a control input value which is input by a switch. | 09-25-2014 |
| 20140285112 | ORGANIC ELECTROLUMINESCENT DISPLAY DEVICE - The present invention overcomes image defects such as the brightness inclination or smears by reducing the line resistance of a power source bus line which supplies electricity to organic EL elements. A plurality of pixels which are arranged in a matrix array is connected to power source lines, and the plurality of power source lines are connected to a power source bus line. Both ends of the power source bus line are connected to a power source part via a FPC. By supplying electricity to both ends of the power source bus line from the power source part, the line resistance of the power source bus line can be reduced. | 09-25-2014 |
| 20140292224 | Luminaire and Lighting Control System - According to one embodiment, a storing section stores a first group address allocated to a luminaire, stores, as a second group address, the first group address allocated to another luminaire, and stores control information corresponding to the second group address. A control section subjects, when the receiving section receives a control signal including the second group address, a light source section to lighting control on the basis of the control information corresponding to the second group address stored in the storing section. | 10-02-2014 |
| 20140292225 | METHOD FOR ADDRESSING LAMP OPERATING DEVICES - The invention relates to a method for controlling at least one lamp, comprising at least one operating device for operating the lamp, wherein the operating device has a first interface and said interface is connected to a control device and to other operating devices, wherein the operating device operates the lamp according to the control signals received via the first interface, and the operating device has at least one further interface for connection of a sensor, in particular a brightness sensor, and a configuration element, which is connected to the further interface of one operating device and which transmits configuration information to the operating device, wherein the configuration information contains address information and the configuration element produces the address information on the basis of a received radio signal. | 10-02-2014 |
| 20140300292 | PROGRAMMABLE CURRENT SOURCE WITH OPTIMIZED COMPLIANCE REGION FOR EFFICIENT BACKLIGHTING IN PORTABLE APPLICATIONS - A programmable current source programmable current source circuit has DAC current source providing an incrementally programmable current levels. A programmable reference current source adjusts a compliance factor of the DAC current source. An input adjustment code indicating an output current amplitude is adjusted by a adjustment code modification circuit when the output current is less than the activation compliance level and generates a signal to set the reference current to a lower level to adjust the compliance factor of the DAC current source to a lower level to decrease power dissipation in the programmable current source at lower current levels. | 10-09-2014 |
| 20140300293 | LED LIGHTING DEVICE AND AN LEDLIGHTING NETWORK SYSTEM - The present invention provides an LED lighting device and an LED lighting network system. The LED lighting device includes an LED lighting unit, an LED driving circuit, a controller, and a Wi-Fi module configured to send and receive Wi-Fi signals. The LED driving circuit connects to the LED lighting unit. The controller connects to the Wi-Fi module and the driving circuit. The LED lighting network system includes two or more of the above LED lighting devices. Each LED lighting device works as a network node, which transmits received Wi-Fi data to other LED lighting devices within its coverage range. The LED lighting devices may form a mesh network. Each LED lighting device may act as a gateway, a network accessing point, or a repeater. The LED lighting network can receive and transmit Wi-Fi signals. In a mesh network, Wi-Fi signals can be transmitted from one layer of LED lighting devices to the next layer. Embodiments consistent with the present disclosure can overcome lighting network problems caused by obstacles in the Wi-Fi transmission range or the limitation of the Wi-Fi signal transmission range. | 10-09-2014 |
| 20140306620 | TUNABLE LED LAMP FOR PRODUCING BIOLOGICALLY-ADJUSTED LIGHT AND ASSOCIATED METHODS - An LED lamp comprising a housing, a drive circuit, LED dies driven by the drive circuit, and an output-select controller to program the drive circuit to drive the LED dies in one of a pre-sleep configuration and a general lighting configuration. The LED dies comprise LED dies of a first spectral output having a peak wavelength between 500 nm and 600 nm and of a second spectral output having a peak wavelength greater than 600 nm, first blue LED dies having a peak wavelength between 420 nm and 480 nm, and second blue LED dies having a peak wavelength below 420 nm. The drive circuit operates each of the LED dies of the first and second spectral outputs and the second blue LED dies in the pre-sleep configuration, and the LED dies of the first and second spectral outputs and the first blue LED dies in the general lighting configuration. | 10-16-2014 |
| 20140312804 | OPERATION OF A LAMP WITH AN AUTONOMOUS ENERGY STORE - An operating device ( | 10-23-2014 |
| 20140312805 | LED LIGHTING DEVICE AND LED LIGHTING CONTROL METHOD - An LED lighting device comprises an LED light source unit; a light intensity control unit configured to provide a light intensity control signal for controlling a light intensity through a plurality of steps in a light intensity control mode; and a light source driving unit configured to provide power to the LED light source unit according to the light intensity control signal. | 10-23-2014 |
| 20140320041 | LIGHT EMITTING DIODE DRIVER - A light emitting diode driver includes: a serial-to-parallel conversion unit converting, based on a reference clock signal, a serial input signal carrying a number (N) of M-bit gray codes into a parallel input signal carrying the M-bit gray codes; a counting unit counting an output control signal to output a counting value; a data buffer unit storing, based on a latch signal, the M-bit gray codes carried by the parallel input signal, and outputting, based on the counting value and the M-bit gray codes, an N-bit signal consisting of N bits, each of which is an i | 10-30-2014 |
| 20140320042 | METHOD FOR MANUFACTURING EMISSION PANEL, AND DISPLAY DEVICE PROVIDED WITH EMISSION PANEL OBTAINED BY THE METHOD - A method for manufacturing an emission panel which has an emission portion including pixels, through which currents of mutually different values flow under a condition that voltages of mutually identical values are applied to the respective pixels is disclosed. This manufacturing method includes: an acquisition step of acquiring correction coefficients for correcting the values of the voltages applied to the respective pixels to reduce differences among the values in current flowing through the respective pixels; and an aging step of executing aging processing on the pixels, the aging processing being executed by correcting the values of the voltages applied to the respective pixels using the correction coefficients and by applying the corrected voltages to the respective pixels. | 10-30-2014 |
| 20140327375 | MODULAR LED LIGHTING SYSTEM - According to various embodiments of the invention, an LED lighting system is providing having a replaceable driver module. In some embodiments, the replaceable driver module comprises a component that is physically attachable to an LED illumination module, whereby the attached components have a combined physical profile dimensioned for installation in a pre-existing light fixture. In further embodiments, the combined system's dimensions allow it to be installed in pre-existing fluorescent fixtures without requiring rewiring of the fixtures. In some embodiments, the LED driver module may be configured to condition power received from a fluorescent light ballast to drive the LEDs such that a pre-existing fluorescent ballast does not need to be removed. In other embodiments, the LED driver may be configured to condition main power such that a pre-existing fluorescent ballast may be removed. | 11-06-2014 |
| 20140339999 | CHARGE PUMP-BASED DRIVE CIRCUITRY FOR BIPOLAR JUNCTION TRANSISTOR (BJT)-BASED POWER SUPPLY - A bipolar junction transistor (BJT) may be used to generate a supply voltage for operating a controller, such as a lighting controller for a LED-based light bulb. A base of the BJT may receive current generated from the supply voltage to control operation of the BJT. Although the base of the BJT would be at a lower voltage than the emitter, a base drive circuit may be coupled between the emitter and the base of the BJT to increase the voltage. As one example, the base drive circuit may be a charge pump. In another example, the BJT may function as its own charge pump. In yet another example, a positive and a negative base current of the BJT may be independently controlled to regulate an output supply voltage V | 11-20-2014 |
| 20140346970 | POWERLINE COMMUNICATION CONTROL OF LIGHT EMITTING DIODE (LED) LIGHTING FIXTURES - A powerline communication control system for controlling a lighting unit, such as an LED lighting unit, including a master controller for receiving lighting unit control inputs from a lighting controller and generating corresponding lighting unit command outputs in a lighting system command format and transmission mode and superimposing the lighting unit command outputs onto the power distribution system and at least one lighting slave unit for receiving the lighting command signal, separating the lighting command signal from the power signal and for providing lighting unit control commands to the at least one lighting unit to control illumination thereof. | 11-27-2014 |
| 20140346971 | LIGHT EMITTING DEVICE AND ORGANIC EL ELEMENT DRIVING METHOD - Provided are a light emitting device and an organic EL element driving method wherein a light emission quality can be maintained by a self-repair without degrading the uniformity of light emission. A light emitting device is characterized in that the light emitting device comprises: a plurality of organic EL elements each of which is supplied with a current, thereby emitting a light; a constant current circuit that supplies a current to each of the organic EL elements; a reverse bias voltage circuit that applies a reverse bias voltage to each of the organic EL elements; and a switch circuit that connects the plurality of organic EL elements in series with the constant current circuit during light emission and that connects the plurality of organic EL elements in parallel with the reverse bias voltage circuit during application of the reverse bias voltage. | 11-27-2014 |
| 20140354176 | LED BACKLIGHT DRIVING CIRCUIT, LCD DEVICE, AND METHOD FOR DRIVING THE LED BACKLIGHT DRIVING CIRCUIT - A light emitting diode (LED) backlight driving circuit includes a power supply, constant current driving unit that drives LED light bars, a switching unit coupled to the power supply, and M light units that are connected with each other in parallel. Each of the light units comprises at least two LED light bars that are connected with each other in parallel, and an input end of each of the LED light bars is coupled to the switching unit. The constant current driving unit includes a plurality of dimming channels coupled to an output end of the LED light bars, and each of the dimming channels is connected with M LED light bars. The M LED light bars connected with a same dimming channel are arranged in different light units, one LED light bar is coupled to one dimming channel. The power supply is only coupled to one light unit through the switching unit when the LED backlight driving circuit is in operation, and M is a positive integer. | 12-04-2014 |
| 20140354177 | METHODS AND APPARATUS FOR MANAGEMENT OF OUTDOOR LIGHTING NETWORKS - Inventive methods and apparatus for management of outdoor lighting networks ( | 12-04-2014 |
| 20140354178 | LIGHTING DRIVER HAVING MULTIPLE DIMMING INTERFACES - Lighting control techniques and corresponding drivers and ballasts are disclosed. In some embodiments, the driver or ballast receives multiple dimming inputs and has multiple dimming interfaces that produce initial dimming signals or levels. The initial dimming signals are manipulated by a controller to produce a final output dimming signal or level that is based on the dimming signals received and dims the attached light sources accordingly. The manipulations performed by the controller may include various operations, such as comparisons and calculating the product of the initial dimming signals. In some embodiments, the techniques can be applied to light-emitting diode (LED) drivers or ballasts for fluorescent and other discharge light sources and can be used in smart grid and peak power shaping applications. | 12-04-2014 |
| 20140361709 | Topology of distributing and connecting LEDs in a large area matrix - A LED circuit comprises an array of LEDs is arranged in a matrix. The matrix is connected to at least three power rail lines. The LEDs are formed as a first LED arrangement ( | 12-11-2014 |
| 20140361710 | LIGHTING SYSTEM - The invention relates to a lighting system comprising:—a substrate comprising a resistive sheet (RS) comprising multiple electrodes (A, B, C, D), each electrode being suitable for connection to a respective voltage source,—a plurality of lighting elements (LEI, LE | 12-11-2014 |
| 20140361711 | LIGHT-EMITTING CIRCUIT, LIGHT-EMITTING MODULE, AND ILLUMINATION DEVICE - An LED module receives current supplied from a variable current source. The LED module includes a first LED that is connected to a variable current source, a bipolar transistor that is series-connected to the first LED and has a resistance that varies depending on magnitude of the current I | 12-11-2014 |
| 20140368127 | FIELD CONFIGURABLE LED DRIVERS FOR LIGHTING - Computerized methods are provided herein for remotely configuring a driver operable to power an illumination system, over a wide area network. A configuration request is received by a configuration server over the wide area network to configure the driver. The configuration request is from a configuration client operatively attached over the wide area network to the configuration server. The driver is configured by transmitting instructions from the configuration server to the configuration client to produce a driver configuration. A data base attached to the configuration server is updated based on the driver configuration. | 12-18-2014 |
| 20140375230 | PERSONALIZED LIGHTING FOR OPEN AREA - The present invention proposes a method, apparatus, controller and system for controlling illuminance. Specifically, the system comprises at least one light source, each of the at least one light source comprising a plurality of light modules and each of the plurality of light modules being adjustable independently; and a controller configured to control the illuminance of a target area in the lighting system. One or more light modules associated with the illuminance of the target area are selected from the at least one light source based on the position relationship between the at least one light source and the target area and a lighting distribution of each of the at least one light source. Then, at least one of the selected one or more light modules is adjusted to meet a certain requirement for the illuminance of the area. As a result, personalized lighting for an open area is effectively achieved. | 12-25-2014 |
| 20150008846 | INTEGRATED WIRELESS AND WIRED LIGHT CONTROL SYSTEM - A light control system includes a wired control device, a wireless control device, a communication module, and light devices. The wired control device includes a first user interface and a first wired communication protocol interface. The wireless control device includes a second user interface and a first wireless communication protocol interface. The communication module includes a second wired communication protocol interface and a second wireless communication protocol interface. Each of the light devices includes a third wired communication protocol interface, and each of the light devices performs data exchange with the third wired communication protocol interface of another one of the light devices by a network cable connected to the third wired communication protocol interface. The first wired communication protocol interface and the first wireless communication protocol interface perform data exchange respectively with the second wired communication protocol interface and the second wireless communication protocol interface. | 01-08-2015 |
| 20150008847 | CAMERA FLASH SYSTEMS AND METHODS FOR ADJUSTING FLASH EXPOSURE POWER - Camera flash systems and methods for data transmission between cameras and flash devices remote to the camera for remotely adjusting flash exposure power of the flash devices are disclosed. The camera flash systems include a transmitter and a receiver. The transmitter receives camera output data from a camera that includes exposure power data for at least one flash device remote to the transmitter and user input data that includes adjustments to the flash exposure power data for the at least one flash device. The transmitter is operable to transmit the adjusted flash exposure power data to the at least one flash device. The receiver receives the adjusted flash exposure power data from the transmitter and is operable to transmit the adjusted flash exposure power data to a flash device. | 01-08-2015 |
| 20150008848 | Color-Temperature-Tunable Device - A method of operating a color-temperature-tunable device is described. The method drives a first light emitting diode (LED) chip with a first driving current from a first power source. The first LED chip is configured to emit a first light having a first peak wavelength. The method also drives a second LED chip with a second driving current from a second power source. The second LED chip is configured to emit a second light having a second peak wavelength. The method further maintains a total driving current, which includes the first driving current and the second driving current, approximately constant. The second peak wavelength is different from the first peak wavelength. | 01-08-2015 |
| 20150015163 | Dual-Purpose Lamp - Disclosed is a dual-purpose lamp, which comprises a power-converting module, a light-emitting module and a control unit. The power-converting module is used for generating a direct current. The light-emitting module is electrically connected with the power-converting module, the light-emitting module comprises an illuminative light-emitting body and a scenario light-emitting body, and the illuminative light-emitting body and the scenario light-emitting body are connected with each other in parallel. The control unit is electrically connected with the power-converting module and is used for controlling the power-converting module so as to adjust the brightness of the illuminative light-emitting body when light is emitted, or to adjust the color, the brightness or the chroma of the scenario light-emitting body when light is emitted. | 01-15-2015 |
| 20150015164 | LIGHT-EMITTING DIODE LIGHTING DEVICE HAVING MULTIPLE DRIVING STAGES - An LED lighting device includes multiple driving stages. A first driving stage includes a first luminescent device driven by a first current, a second luminescent device driven by a second current, a path-controller for conducting a third current, a first current controller for regulating the first current, and a second current controller for regulating the second current. The second driving stage includes a third current controller coupled in series to the first driving stage and configured to conduct and regulate a fourth current. When the path-controller is turned off, the third current is zero, and the fourth current is equal to the sum of the first current and the second current. When the path-controller is turned on, the first current, the second current, the third current and the fourth current is equal. | 01-15-2015 |
| 20150015165 | METHODS AND APPARATUS FOR CONFIGURATION OF CONTROL DEVICES - Methods and apparatus for configuration of a physical control panel ( | 01-15-2015 |
| 20150022114 | TUBULAR LIGHT-EMITTING APPARATUS - Provided is a light-emitting apparatus and a method of operating the same. The light-emitting apparatus includes: a light-emitting module having a plurality of light-emitting diodes (LEDs); a cylindrical cover housing the light-emitting module, and transmitting light emitted from the plurality of LEDs; with a first socket at a first end of the cylindrical cover; a second socket at a second end of the cylindrical cover; and a dimmer controller mounted at the first socket so as to adjust an intensity of the light emitted from the plurality of LEDs. The light-emitting apparatus may adjust an intensity of light without a system change or equipment work. | 01-22-2015 |
| 20150022115 | LIGHTING MODULE AND A CORRESPONDING LIGHTING SYSTEM - Various embodiments relate to a lighting module. The lighting module includes at least one light source, regulating means for regulating the brightness of the light emitted by the at least one light source, and a control unit configured for receiving a brightness control signal, and driving the regulation means as a function of the brightness control signal, wherein the control unit is configured for: verifying whether the brightness control signal contains a digital communication signal, and if the brightness control signal includes a digital communication signal, detecting the data transmitted via the digital communication signal and driving the regulating means as a function of the transmitted data, or if the brightness control signal does not includes a digital communication signal, driving the regulating means as a function of the brightness control signal. | 01-22-2015 |
| 20150022116 | LED-BASED LIGHT BULB DEVICE - An LED light bulb device including a bulb body, a flex circuit leg, an LED, conversion circuitry and a cap. | 01-22-2015 |
| 20150028768 | COMPENSATING FOR A REVERSE RECOVERY TIME PERIOD OF A BIPOLAR JUNCTION TRANSISTOR (BJT) IN SWITCH-MODE OPERATION OF A LIGHT-EMITTING DIODE (LED)-BASED BULB - A turn-off transition time period, also referred to as a reverse recovery time period, may be compensated for by a controller of a power stage including a bipolar junction transistor (BJT). The reverse recovery time period may be measured in one switching cycle and a subsequent switching cycle may include compensations based on the measured reverse recovery time period. That is the switching on and off of the BJT may be compensated to obtain a desired average output current to a load. When the reverse recovery time period is known, an error in the peak current obtained due to the reverse recovery time period may be calculated. The calculated error may be used to offset the target peak current for controlling the switching of the BJT to begin a turn-off transition of the BJT earlier in a switching cycle and thus reduce error in peak current at the BJT. | 01-29-2015 |
| 20150028769 | DRIVER CIRCUIT FOR AT LEAST ONE LOAD AND METHOD OF OPERATING THE SAME - A driver circuit ( | 01-29-2015 |
| 20150028770 | MODULAR LIGHT FIXTURE WITH POWER PACK - A light fixture including a support structure and a plurality of LEDs coupled to the structure and spaced apart along at least a portion of a length of the structure. The light fixture further includes a power pack, the power pack including a driver configured to be electrically coupled to the plurality of LEDs, power input wiring that is configured to receive power for the light fixture, and a cover provided substantially over the driver and the power input wiring. A modular power input connector is accessible without removing the cover, wherein the modular power input connector is coupled to the power input wiring, and wherein the modular power input connector is configured to accept a power cord. | 01-29-2015 |
| 20150028771 | SINGLE WIRE SERIAL INTERFACE - A single wire serial interface for power ICs and other devices is provided. To use the interface, a device is configured to include an EN/SET input pin. A counter within the device counts clock pulses sent to the EN/SET input pin. The output of the counter is passed to a ROM or other decoder circuit. The ROM selects an operational state for the device that corresponds to the value of the counter. In this way, control states may be selected for the device by sending corresponding clock pulses to the EN/SET pin. Holding the EN/SET pin high causes the device to maintain its operational state. Holding the EN/SET pin low for a predetermined timeout period resets the counter and causes the device to adopt a predetermined configuration (such as off) until new clock pulses are received at the EN/SET pin. | 01-29-2015 |
| 20150035452 | LED LIGHTING SYSTEM - The invention relates to LED lighting system comprising a power supply circuit and one or more LED modules. The power supply circuit is equipped with input terminals (K | 02-05-2015 |
| 20150035453 | LIGHTING DEVICE, LUMINAIRE, METHOD FOR DESIGNING LIGHTING DEVICE, AND METHOD FOR MANUFACTURING LIGHTING DEVICE - A lighting device that is connected to a DC power source and supplies an electric current to a solid-state light-emitting element (LED) whose forward voltage ranges from Vfmin to Vfmax includes a DC/DC converter (buck converter) and a control unit. The DC/DC converter includes a switching element. The control unit turns OFF the switching element by peak current control, and when the solid-state light-emitting element to be connected to the lighting device has a forward voltage of Vfmax, turns ON the switching element in fixed cycles such that the DC/DC converter operates in BCM. | 02-05-2015 |
| 20150042241 | LIGHT EMITTING DEVICE - A light emitting device comprising a carrier board, a first group of light emitting elements, a second group of light emitting elements and a driver circuit. The first group of light emitting elements includes a plurality of first LEDs disposing on the carrier board and are used for emitting a first color temperature light. The second group of light emitting elements includes a plurality of second LEDs disposing on the carrier board and are used for emitting a second color temperature light. The first LEDs and the second LEDs are disposed in an alternative arrangement. The driver circuit output a first and a second driving current to drives the first LED and the second LED respectively. When the first driving current is the maximum, the second driving current is the minimum, and vice versa. The minimum of the first driving current and the second driving current is not zero. | 02-12-2015 |
| 20150042242 | OUTPUT CURRENT CONFIGURATION BASED ON LOAD CONNECTION - A driver port that provides selectable output currents based on connections thereto, and a driver including the same, is provided. A plurality of shunt resistors are connected in series between a negative output of a driver and a ground. A driver port having a plurality of connection points is provided, each respective connection point connected to a different connection between two of the plurality of shunt resistors. A load including one or more solid state light sources is capable of being connected between one of the connection points of the driver port and a positive output of the driver. | 02-12-2015 |
| 20150048757 | CIRCUIT ARRANGEMENT - A circuit arrangement ( | 02-19-2015 |
| 20150048758 | HANDHELD DEVICE FOR GROUPING A PLURALITY OF LIGHTING FIXTURES - A handheld device for grouping a plurality of lighting fixtures is disclosed. In one embodiment, the handheld device includes a communication interface configured to wirelessly communicate with the plurality of lighting fixtures and control circuitry. The circuitry is configured to: effect selection of at least two lighting fixtures of the plurality of lighting fixtures via the communication interface; determine a first group for the at least two lighting fixtures; create first group assignment information for the first group; and send the first group assignment information to each of the at least two lighting fixtures via the communication interface. | 02-19-2015 |
| 20150054425 | NANOCOMPOSITE COMPOSITIONS AND METHODS OF MAKING - The present disclosure relates to coupling agents capable of dispersing a high loading of nanoparticles into a polymer matrix to provide a nanocomposite with a combination of desirable optical and mechanical properties of the constituent materials. More particularly, the present disclosure relates to high loading nanocomposites comprising nanoparticles coupled with a polymer matrix. Light-emitting devices incorporating the nanocomposite are also disclosed. | 02-26-2015 |
| 20150061540 | DC-DC CONVERTER AND ORGANIC LIGHT EMITTING DISPLAY DEVICE INCLUDING THE SAME - An organic light emitting display device includes a DC-DC converter to supply first and second voltages to one or more pixels. The DC-DC converter includes a first voltage supply to convert an input voltage to a first voltage and a second voltage supply to convert the input voltage to a second voltage. The first and second voltages are coupled to opposing ends of the one or more pixels. The first voltage supply includes a first inductor between a first input terminal and first node, a first transistor between the first node and a reference potential, a second transistor between the first node and first output terminal, a first diode between the first node and a second node, a second diode between the second node and first output terminal, and a first switch between the second node and first output terminal. | 03-05-2015 |
| 20150061541 | LIGHTING SYSTEM INCLUDING NEAR FIELD COMMUNICATION CONTROLLER - An environmental control system such as an illumination system includes one or more LED lighting devices or other environmental factor control devices and a control device for controlling one or a combination of the LED lighting devices or other environmental factor control devices. A remote controller for remotely setting control content, control parameters and the like can be communicatively coupled (e.g., wirelessly) to the control device. The remote controller can be a smartphone or other device that includes an LED lighting control or other environmental control module or unit for setting one or more properties or parameters of a control target lighting/environmental device using near field communications. Properties and functions controlled by the remote controller can include timers, spectral content, intensity, etc. that are programmed by a user employing a simple application (e.g., featuring a GUI or other user-friendly interface). | 03-05-2015 |
| 20150061542 | Linear Solid-State Lighting With Ballast Free Of Electric Shock Hazard - A linear light-emitting diode (LED)-based solid-state lamp using an AC current control scheme and shock protection switches operates normally with an electronic ballast. Due to the use of shock protection switches in the two lamp bases at two opposite ends, the ballast-compatible LED lamp fully protects a person from possible electric shock during initial installation, maintenance, and re-lamping no matter what the rated power and the brand of the LLT lamp are and no matter whether the electronic ballast is existing used ones that may be incompatible with the lamp or faulty, leading to an unacceptable leakage current. | 03-05-2015 |
| 20150069931 | SCANNING LIGHT-EMITTING DEVICE WITH INCREASED LIGHT INTENSITY - A scanning light-emitting device with increased light intensity includes a light-emitting circuit and a shift circuit including a plurality of shift thyristors, a plurality of diodes and a plurality of shift signal lines. The plurality of shift thyristors is divided into a plurality of groups at intervals. Each of the shift signal lines is electrically connected to the shift thyristors belonging to one of the groups. The light-emitting circuit includes a plurality of light-emitting thyristors and a plurality of light-emitting control lines. Each of the light-emitting thyristors is correspondingly electrically connected to one of the shift thyristors. Each of the light-emitting control lines is electrically connected to the light-emitting thyristors electrically connected to the shift thyristors belonging to one of the groups. The total light-emitting intensity can be increased through partial overlap during light-emitting of the light-emitting thyristors in adjacent groups. | 03-12-2015 |
| 20150077013 | Ballast Lead Wire Configuration - A ballast lead wire configuration includes a ballast having a pair of power inputs and a pair of power outputs. A primary lamp is electrically connected to the ballast. A first primary lamp ballast terminal is formed on the primary lamp and electrically connected to the ballast. A second primary lamp ballast terminal is formed on the primary lamp and electrically connected to the ballast. A second lamp electrically connected to the ballast, and the second lamp is electrically connected to the first lamp in series. A first secondary lamp ballast terminal is formed on the secondary lamp and electrically connected to the ballast. A second secondary lamp ballast terminal is formed on the secondary lamp and electrically connected to the ballast. The first lamp and the second lamp are florescent lamps over 36 inches long. | 03-19-2015 |
| 20150077014 | Flash-LED Driver Discharge Control - Various implementations include circuits, devices and/or methods that enable the repeated generation of controlled surges with lower risk of component failure. Some implementations include a discharge control assembly including a discharge circuit and a controller. In some implementations, the discharge circuit is selectively connectable to a driver circuit, and the discharge circuit is configured to provide a dominant discharge path for the driver circuit when the driver circuit is effectively decoupled from a first load in order to decay an electrical condition of the driver circuit produced prior to the driver circuit being effectively decoupled from the first load. In some implementations, the controller is configured to selectively connect the driver circuit to a combination of the discharge circuit and the first load, and in at least one combination the discharge circuit is effectively coupled to the driver circuit when the first load is effectively decoupled from the driver circuit. | 03-19-2015 |
| 20150077015 | LIGHTING PERFORMANCE POWER MONITORING SYSTEM AND METHOD WITH OPTIONAL INTEGRATED LIGHT CONTROL - A light performance monitoring device and optionally integrated controller includes a monitor module that directly monitors energy usage of at least one energy load to generate at least one measurement of energy usage; a storage module stores a series of baseline values of energy usage of the energy load, a comparator module compares energy measurements made at predetermined intervals with the baseline values, and a notification module notifies a designated recipient that there is a deviation from the baseline values consistent with a burned out or non-operational light fixture, including but not limited to light bulbs or ballast devices. A control module optionally integrated with the light performance monitoring device can be operatively coupled to the monitor module to control energy usage by the at least one energy load via a data link in a pre-determined manner that is based on the at least one measurement of energy usage. | 03-19-2015 |
| 20150077016 | Controller - A controller is disclosed for controlling the optical output of at least one light emitting diode. The controller comprises a control unit and a power supply unit for supplying power to the at least one light emitting diode. The control unit is arranged to receive as input, first and second signals which are representative of the operating characteristics of the at least one light emitting diode, and which is further arranged to control the power output from the power supply unit to the at least one light emitting diode in dependence of the first and second signals. The first signal is representative of the current within the at least one light emitting diode and the second signal is representative of the temperature of the at least one light emitting diode so that the optical output from the at least one LED can be varied in accordance with the operating characteristics of the at least one light emitting diode. | 03-19-2015 |
| 20150084542 | CONTROLLING OBJECT APPEARANCE WITH VARIABLE SPECTRAL DISTRIBUTION OF LIGHTING HAVING CONSTANT CHROMATICITY - Techniques are disclosed for controlling object appearance while maintaining a lighting function without noticeable changes in illumination. The techniques may be implemented to illuminate a given target with a first light source so as to cause the target to have a first appearance, and to illuminate the target with a second light source so as to cause the target to have a second appearance different from the first appearance. The first and second light sources have a chromaticity within a common MacAdam ellipse. The MacAdam ellipse size may range, for example, from a 7-step ellipse (for relaxed constancy in chromaticity) to a 1-step ellipse (for high constancy in chromaticity). In some cases, one of the first or second light sources includes a spectral feature not included in the other light source, and an optical response property of the target reacts to changes in the spectral feature thereby causing appearance changes. | 03-26-2015 |
| 20150084543 | LED ILLUMINATING APPARATUS HAVING ENHANCED QUANTITY OF LIGHT - Disclosed is a light emitting diode (LED) illuminating apparatus having enhanced stability of the quantity of light. The LED illuminating apparatus includes an LED lighting block connected to a rectified voltage and including at least one LED module, an alternative reference voltage generating block configured to detect the rectified voltage and generate an alternative reference voltage, and a switching block connected to the tap and configured to form a closed circuit including the at least one LED module. The at least one LED module includes a cathode terminal having a tap. The alternative reference voltage has a voltage level according to a root mean square (RMS) value of the rectified voltage. The amount of currents flowing through the closed circuit is controlled by the alternative reference voltage to have a negative relationship with the RMS value of the rectified voltage. In an LED illuminating apparatus according to the present invention, degradation in uniformity of light due to instability of an input power is reduced. | 03-26-2015 |
| 20150084544 | OPERATING CIRCUIT FOR LEDS, HAVING DIMMING SIGNAL COMPRISING HIGH-FREQUENCY MODULATED PULSE PACKET SIGNAL WITH HARMONIZED FREQUENCIES - The invention relates to a method for activating at least one LED, which is supplied with a direct current voltage or a rectified alternating current voltage and which by means of a coil (L | 03-26-2015 |
| 20150091471 | LED LIGHTING SYSTEM - An LED lighting system is provided for connection to a variable power source providing input power, the LED lighting system having at least one power analyzing and processing circuitry connecting to the variable power source, and being configured to identify one or more characteristics of the input power, where the characteristics are selected from amplitude, frequency and pulse width of the input power, compare one or more of the characteristics of the input power to preset control criteria either in hardware or software or both to yield a comparison result, and then control the current control circuitry according to the comparison result. | 04-02-2015 |
| 20150091472 | LIGHTING DEVICE - A lighting device includes a first light source composed of first LEDs each configured to emit light with a first color temperature, a second light source composed of second LEDs each configured to emit light with a second color temperature lower than the first color temperature, a lighting circuit, and a control circuit. The number of second LEDs is less than that of the first LEDs. The lighting circuit is configured to cause the first and second light sources to light on by supplying first and second drive currents to the first and second light sources, respectively. The control circuit is configured to control lighting conditions of the first and second light sources so that: total light intensity of the first light source varies in response to a dimming signal; and total light intensity of the second light source is kept constant independently of the dimming signal. | 04-02-2015 |
| 20150097496 | DEVICE AND METHOD FOR TIME MULTIPLEXING SWITCHABLE OPTICAL ELEMENTS FOR CONTROLLABLE LIGHTING - Methods and apparatus for electrically controlling a Iuminaire to alter it s appearance and illumination effects are disclosed. A luminaire ( | 04-09-2015 |
| 20150102747 | METHODS AND APPARATUS FOR OPERATING A LIGHTING NETWORK ACCORDING TO ENERGY DEMAND AND ENERGY SUPPLY - Methods and apparatus related to operation of a plurality of lighting units of a lighting network according to energy demand and/or energy supply. | 04-16-2015 |
| 20150108918 | Controller and Method of Controlling A Light Emitting Device - Example embodiments relate to a controller and a method of controlling a light emitting device. | 04-23-2015 |
| 20150108919 | LIGHT SOURCE CIRCUITRY - Light source circuitry comprises a first group of one or more light emitting diodes operable to emit light of a first color, a second group of one or more light emitting diodes operable to emit light of a second color, and a third group of one or more light emitting diodes operable to emit light of a third color, wherein the first, second and third groups of light emitting diodes are arranged such that, when a fixed current arrives at the light source circuitry, the fixed current is shared between the first, second and third groups, and wherein the circuitry is configured such that a proportion of the fixed current that flows through each of the first and second groups is controllable in dependence on a received control signal and such that the remainder of the fixed current flows through the third group. The light source circuitry allows the chromaticity of the combined light emissions of the light source circuitry to be varied gradually across a range using a single control signal and also without requiring the use of pulse width modulation (PWM) | 04-23-2015 |
| 20150108920 | Method of Optimizing Light Output During Light Replication - A method of utilizing a light replication luminaire to match the spectral characteristics of light that is output from the luminaire to the spectral characteristics of a target light spectrum is provided. In one example, the method permits the user to assign a weight to one or more characteristics of the target light spectrum to be replicated. A best approximation of the target light spectrum is then determined, taking into account the weight assigned to each characteristic. In another example, the target light spectrum is provided to the luminaire by the user through the specification of various characteristics of the target light spectrum. | 04-23-2015 |
| 20150115832 | OFFSET COMPENSATION IN DRIVING CIRCUITS - Apparatus and methods are presented for compensating for offsets in digital-to-analog converters (DACs). An apparatus may comprise a gain block. The non-inverting input of the gain block may be provided with a bias voltage selected to exceed the worst-case expected positive offset of a DAC. Feedback from the output of the gain block may be provided to a processor. The processor may be connected to drive the DAC. | 04-30-2015 |
| 20150115833 | CONTROL OF LIGHT HAVING MULTIPLE LIGHT SOURCES - An illumination control method is disclosed. The illumination control method comprises the steps of: acquiring a list of control information items for satisfying light-emitting conditions for illumination generated by multiple light source elements in order to have a specific color and a specific light intensity; determining control information from the list so that the sum of each driving power source for the multiple light source elements is equal to or less than a predetermined value; and adjusting the driving power sources for the multiple light source elements on the basis of the determined control information, wherein the control information indicates the each driving power source for the plurality of light source elements, the light-emitting conditions include the light intensity for each of a plurality of wavelengths, and the number of light source elements is greater than the number of light-emitting conditions. | 04-30-2015 |
| 20150115834 | SMART HOME NETWORK APPARATUS AND CONTROL METHOD THEREOF - A network apparatus is provided. The network apparatus includes a communication unit configured to perform communication with at least one device. The apparatus also includes a storage unit configured to store information for an illumination device located within a preset distance range from the at least one device. The apparatus further includes a controller configured to control a light-emitting state of the illumination device located within the preset distance range from the at least one device based on the information stored in the storage unit when a preset event occurs in the at least one device. | 04-30-2015 |
| 20150115835 | APPARATUS AND METHOD FOR CONTROLLING LIGHTING BASED ON INTERNET PROTOCOL NETWORK - Disclosed herein is an apparatus and method for controlling lighting based on an Internet Protocol (IP) network. Pieces of input information required to control lighting devices connected to a Digital Addressable Lighting Interface (DALI) network are received. An event corresponding to an IP packet, provided via network input among the pieces of the input information, is generated and is converted into a format of a DALI command. Time synchronization for the DALI command is performed while operating in conjunction with a DALI timer. A lighting device connected to the DALI network is controlled in compliance with the DALI command, for which time synchronization has been completed. | 04-30-2015 |
| 20150115836 | DIMMING CONSOLE - A dimming console serves to store output levels of a plurality of lighting instruments and control the output levels of the plurality of lighting instruments. The dimming console includes an output unit configured to output, to a display, a scene preparation region that displays scenes indicating at least states of the output levels of the plurality of lighting instruments and a scene storage region indicating playback order information regarding a scene playback order; an input unit configured to receive an operation for the scene preparation region and an operation for the scene storage region; and a control unit configured to edit the scenes or the playback order information pursuant to the operation of the input unit and to control the output unit to output the edited scenes or the edited playback order information. | 04-30-2015 |
| 20150115837 | DIMMING CONSOLE - A dimming console includes a plurality of physical faders, a display and a control unit. The control unit has a function of displaying a virtual fader for changing an output level of a lighting instrument on a display and a function of displaying a scene icon including scene information on the display. Each of the physical faders has a function of playing back a scene associated with the scene icon. | 04-30-2015 |
| 20150115838 | SWITCHING MODE POWER SUPPLY APPARATUS - A switching mode power supply apparatus includes a main transformer converting DC voltage of a predetermined amplitude supplied from a voltage source into DC voltage of a different amplitude; an auxiliary transformer operated by receiving current flowing in a primary winding of the main transformer; a first semiconductor switching element turning on/off an LED array that is driven by receiving voltage from a secondary winding of the auxiliary transformer; and an auxiliary circuit disposed in an LED control circuit unit including the LED array and the first semiconductor switching element, wherein the auxiliary circuit distributes current flowing in the first semiconductor switching element so as to reduce heat generated in the first semiconductor switching element. | 04-30-2015 |
| 20150115839 | CONFIGURABLE LED DRIVER/DIMMER FOR SOLID STATE LIGHTING APPLICATIONS - A configurable light emitting diode (LED) driver for powering a set of light fixture loads including a power circuit and a primary controller for controlling the power circuit. The driver further includes a set of output current drivers, each of the set of output current drivers connected to one of the set of light fixture loads for controlling the associated light fixture load and a secondary controller for controlling the set of output current drivers. The driver also includes an apparatus for mapping the set of output current drivers to various dimming zones and for mapping output channels into groups. | 04-30-2015 |
| 20150123563 | SYSTEMS AND METHODS FOR COMMISSIONING A LIGHTING SYSTEM - Embodiments are provided for commissioning a lighting system that includes a plurality of luminaires. According to certain aspects, an electronic device can, for each of the plurality of luminaires, connect to a luminaire and retrieve an identification of the luminaire. The electronic device can associate its location as the location of the luminaire, as well as prompt a user to associate a layout tag of existing layout data for the lighting system with the luminaire. The electronic device can transmit the commissioning data for the lighting system to a server for remote storage. The server enables remote access to the commissioning data by various electronic devices and users thereof. | 05-07-2015 |
| 20150123564 | SYNTHESIZING LIGHTING TO CONTROL APPARENT COLORS - Illumination of an environment can be selected based on target colors that the illumination would provide for specific samples. One process for synthesizing the illumination includes repeatedly selecting settings for separate light sources in a luminaire system and determining a difference between the target colors of the samples and apparent colors of the samples under illumination that the luminaire system would produce with the settings selected. The differences thus determined can be used to identify a synthesized illumination, for example, the synthesized illumination that provides a smallest difference. A luminaire system can implement such a process in a luminaire or in a control system for luminaires. | 05-07-2015 |
| 20150123565 | MINIMUM OFF TIME CONTROL SYSTEMS AND METHODS FOR SWITCHING POWER CONVERTERS IN DISCONTINUOUS CONDUCTION MODE - Systems and methods are provided for managing switching operation of a power converter, for example and without limitation, for powering LEDs in an efficient manner. According to one aspect, a system for managing a switching operation of a power converter includes an off time control system for managing operation modes of a power converter. The off time control system includes an active device for transmitting a bias signal, where the bias signal is configured for modulating a zero diode current signal for controlling a trigger signal, and a resistive body for discharging the bias signal. | 05-07-2015 |
| 20150123566 | LOW VOLTAGE LIGHTING POWER SUPPLY SYSTEMS AND METHODS - The present application discloses systems and methods for providing low voltage power for low voltage lighting sources, e.g., so-called landscape lighting. A low voltage lighting power supply includes an enclosure and a power circuit enclosed in the enclosure. In some embodiments the power circuit has a primary side and a secondary side. The primary side accepts power from a main power source and the secondary side has a plurality of separate output power circuits, each output power circuit generating a separate low voltage lighting power signal capable of lighting a plurality of low voltage light sources and each being rated for a particular output. | 05-07-2015 |
| 20150123567 | TRANSFORMER VOLTAGE DETECTION IN DIMMABLE LIGHTING SYSTEMS - An illumination system detects a peak value of a voltage of a transformer supplying an LED module by analyzing the current value of the voltage and an on-time of the voltage. Based on the detected peak value, a property of the illumination system is adjusted. | 05-07-2015 |
| 20150130369 | POWER SUPPLY SYSTEM OF ONE OR MORE LIGHTING MODULES WITH LIGHT-EMITTING DIODES, ASSOCIATED LIGHTING SYSTEM AND ASSOCIATED POWER SUPPLY METHOD - The inventive power supply system ( | 05-14-2015 |
| 20150137700 | Systems and Methods of Driving Multiple Outputs - Systems and methods of driving multiple outputs are provided in which a single inductor may be used to drive multiple output such as independent strings of LEDs or white LEDs (WLEDs). In an example embodiment, a boost DC to DC converter may be used with a single inductor to drive multiple outputs. In an example embodiment, the error voltage of each of the multiple outputs is sampled during each cycle of the DC to DC converter and the largest error voltage is determined for that cycle. Power from the DC to DC converter is then supplied to that output during that cycle. | 05-21-2015 |
| 20150137701 | OPTOELECTRONIC COMPONENT DEVICE - An optoelectronic component device includes a first group of optoelectronic components including at least one first optoelectronic component, wherein the at least one first optoelectronic component provides electromagnetic radiation of a first color valence, a second group of optoelectronic components including at least one second optoelectronic component, wherein the at least one second optoelectronic component provides electromagnetic radiation of a second color valence, and a phase dimmer, wherein the phase dimmer is designed in such a way that a first operating mode and a second operating mode are provided, wherein the phase dimmer actuates the first and the second group of optoelectronic components in such a way that, in the first operating mode, a first array of optoelectronic components of the optoelectronic component device is energized and, in the second operating mode, a second array of optoelectronic components of the optoelectronic component device is energized. | 05-21-2015 |
| 20150137702 | WIRELESS LIGHTNING CONTROL SYSTEM FOR A WIND TURBINE - Provided is a wind turbine that includes a tower, a nacelle, a plurality of light sources mounted within the tower and the nacelle, and a wireless lighting control system. The wireless lighting control system includes a first locally controllable switch for controlling power to the plurality of light sources and a second locally controllable switch for controlling power to the plurality of light sources. The first and second locally controllable light switches are located remotely from each other. The wireless lighting control system further includes a remotely controllable light switch located at each of one or more of the light sources. The remotely controllable switch is configured to wirelessly receive a switch-on signal generated in response to manipulation of at least one of the first and second locally controllable switches, and switch on power to the corresponding light source in response to receiving the switch-on signal. | 05-21-2015 |
| 20150137703 | POWERLINE LUMINAIRE COMMUNICATIONS - A system and method for a lighting control system to control street lighting fixtures using modified geometric harmonic modulation for communications over a powerline. At least some of the lighting fixtures have another communications capability that enables RF communications. The communications may by messages be sent to the lighting fixtures to read RF enabled meters. | 05-21-2015 |
| 20150145434 | BACKLIGHT UNIT - A backlight unit includes a first switch receiving a constant current applied from an outside circuit and a sensing current, a first comparator receiving an output of the first switch, a second switch receiving an output of the first comparator, a second comparator receiving an output of the second switch; a thin film transistor having a gate electrode receiving an output of the second comparator; a light-emitting diode array connected to a source electrode of the thin film transistor; and a current sensor connected to a drain electrode of the thin film transistor. | 05-28-2015 |
| 20150145435 | CONTROL METHOD OF MOBILE DEVICE - A control method of a mobile device that controls one or more pieces of lighting equipment that illuminate a space includes: displaying a scene configuration screen that includes a configuration screen for configuring a new scene, and a configuration finish button; transmitting to the one or more pieces of lighting equipment a control signal based on configuration information indicating a lighting state configured by user operations on the configuration screen; activating the image capture unit after the configuration finish button is selected; storing in memory the configuration information from when the configuration finish button was selected as configuration information for the new scene, and also storing an image acquired by the image capture unit as a scene icon of the new scene; and displaying a new scene selection screen that includes the scene icon of the new scene. | 05-28-2015 |
| 20150145436 | LIGHTING DEVICE AND ILLUMINATION APPARATUS USING SAME - A lighting device includes: a DC power source circuit; an output control circuit including a chopping switch to adjust an output current by chopping of the chopping switch; light source switches respectively connected to the light sources; and a control unit for controlling a time period for which a current flows in the light sources. The control unit controls the output control circuit such that an operation period for which the chopping is conducted and a stop period for which the chopping is stopped are repeated alternately and performs switchover of the light source switches to be sequentially and selectively turned on, and the switchover is conducted during the stop period with a time interval from a beginning of the stop period. | 05-28-2015 |
| 20150296597 | METHOD AND SYSTEM FOR AN ELECTRONICALLY ADAPTIVE PHOTOMETRY FOR ROADWAY LIGHTING - Provided is an outdoor lighting assembly including at least one lighting arrays having one or more light sources configured for lighting a plurality of zones. At least one controller is operatively coupled to the at least one lighting array. The controller is configured to independently change optical outputs of the one or more light sources in each of the zones. | 10-15-2015 |
| 20150296600 | WIRELESS CONFIGURATION AND DIAGNOSTICS OF AIRFIELD LIGHTING FIXTURES - The present disclosure relates to a system and method for wirelessly configuring and diagnosing an airfield lighting system. In particular, the system can include a constant current regulator that comprises a wireless communication interface. The system can also include a plurality of light fixtures where one or more of the light fixtures includes a wireless communication interface. The constant current regulator and the light fixture can communicate via the wireless communication interfaces with a handheld wireless device. Alternatively, the constant current regulator and the light fixture can communicate via the wireless communication interfaces with wireless display devices. The wireless communication interfaces can communicate configuration and diagnostic information. | 10-15-2015 |
| 20150302792 | LED DISPLAY - A Light-Emitting Diode (LED) display includes: an LED display panel; and a display driving circuit, including a switching circuit and a control circuit, wherein the switching circuit comprises first and second switching sub-circuits; the first switching sub-circuit includes one or more field effect transistors; the second switching sub-circuit includes one or more field effect transistors; the control circuit includes a power supply control circuit connected with a third end of the switching circuit through a power supply control port. The switching circuit and the control circuit are integrated in the display driving circuit, and the two switching sub-circuits control the power supply of R/G/B LEDs in an LED particle array with M lines and N columns in the LED display panel respectively, so that the effects of small PCB area occupied by the control circuit, simple design, high refresh rate and low power consumption of the LED display are achieved. | 10-22-2015 |
| 20150305103 | DRIVER FOR SOLID STATE LIGHT SOURCES - Techniques are disclosed for providing an adaptive and scalable output drive current by a lighting driver, which helps mitigate issues related to binning of solid state light sources. The disclosed techniques may be implemented, for example, with the use of header pins and one or more jumpers or so-called shunt connectors. This allows for a given driver with a constant current output to provide any number of desired output drive currents on demand, by switching and/or adding and/or removing one or more shunt connectors across the appropriate header pins. The header may include any number of pin-pairs, with each pin-pair capable of receiving a shunt connector. Any number of driver topologies may be implemented with the header, such as flyback, buck, boost, buck-boost, and variants thereof. | 10-22-2015 |
| 20150311475 | ELECTROPHOSPHORESCENT ORGANIC LIGHT EMITTING CONCENTRATOR - Embodiments of the disclosed subject matter provide a device with a base having an opening, and a plurality of organic light emitting devices (OLEDs) disposed on a plurality of substrates and arranged in a light directing structure onto the base, where the opening of the base is a light exit aperture of light output by the plurality of OLEDs. | 10-29-2015 |
| 20150311809 | CURRENT REGULATION APPARATUS - A current regulation apparatus is provided. The current regulation apparatus includes a trans unit, a first switching unit, a voltage detection unit, a voltage comparison unit, and a control unit. The trans unit includes an auxiliary winding unit. The first switching unit controls an operation of the trans unit. The voltage detection unit detects a voltage induced to the auxiliary winding unit. The voltage comparison unit compares a voltage detected by the voltage detection unit and a reference voltage. The control unit adjusts a turn-on section of the first switching unit according to an output voltage of the voltage comparison unit. | 10-29-2015 |
| 20150312975 | MODULAR LED LIGHTING SYSTEMS - In accordance with various embodiments, a modular lighting system features multiple light panels each having multiple light-emitting elements thereon, as well as connectors for electrically and mechanically interconnecting the light panels. | 10-29-2015 |
| 20150320334 | SYSTEM, METHOD AND COMPUTER-ACCESSIBLE MEDIUM FOR IMPROVING PATIENT COMPLIANCE DURING MAGNETIC RESONANCE IMAGING EXAMINATIONS - An exemplary system, method and computer-accessible medium can be provided for alerting a patient of a condition(s) during an MRI scan procedure(s), which can include, for example receiving information related to the condition(s), and controlling an intensity of a light source(s) located near or on an MRI scanner based on the condition(s). The light source(s) can include a light-emitting diode, which can be a white LED and/or a rainbow LED. The color of the rainbow LED can be changed based on the condition(s). The light source(s) can be located inside or outside a bore of the MRI scanner. | 11-12-2015 |
| 20150327342 | LIGHT SOURCE APPARATUS - A light source apparatus including a light-emitting module and a control unit is provided. The light-emitting module is configured to provide a light. The control unit makes the light emitted from the light-emitting module switched between a first light and a second light. A spectrum of the first light is different from a spectrum of the second light, and color temperatures of the first light and the second light are substantially the same as each other. | 11-12-2015 |
| 20150327343 | PLANCKIAN AND NON-PLANCKIAN DIMMING OF SOLID STATE LIGHT SOURCES - Systems and methods of Planckian and non-Planckian dimming of solid state light sources are disclosed. For a given first range of correlated color temperature values on the 1931 CIE Chromaticity Diagram, the current through a plurality of solid state light sources is adjusted so that the light output thereby follows the correlated color temperature values relating to the black body curve over that given first range. For a given second range of correlated color temperature values, the current through a plurality of solid state light sources is adjusted so that the light output thereby deviates from black body curve and instead relates to a series of coordinates that tracks a line between the curve and a color point for one of the solid state light sources. | 11-12-2015 |
| 20150327344 | LIGHT-EMITTING DEVICE - A light-emitting control unit ( | 11-12-2015 |
| 20150327350 | A METHOD OF CONTROLLING A LIGHTING SYSTEM AND A LIGHTING SYSTEM - A lighting system and a corresponding method are provided. The method comprises: sending a change operational state command to a lighting device group ( | 11-12-2015 |
| 20150333287 | ORGANIC ELECTROLUMINESCENT DEVICE, ILLUMINATION APPARATUS, AND ILLUMINATION SYSTEM - An organic electroluminescent device includes first and second substrates, first and second electrodes, an organic light emitting layer, and first and second terminal parts. The first substrate has an upper face including a device region and a periphery region surrounding the device region. The upper face is polygonal. The first electrode is provided on the device region. The organic light emitting layer is provided on the first electrode. The second electrode is provided on the organic light emitting layer. The second substrate is provided on the second electrode. The first terminal part is provided on the periphery region. The second terminal part is provided separated from the first terminal part on the periphery region. At least one of the first terminal part and the second terminal part extends along each of a plurality of sides of the upper face. | 11-19-2015 |
| 20150334790 | USER INPUT SYSTEMS FOR AN LED-BASED LIGHT - An LED-based replacement light includes a plurality of LEDs, an LED controller for operating the LEDs, a user input interface in communication with the LED controller, a housing for the LEDs, the LED controller and the user input interface, and a connector disposed at an end of the housing and shaped for connection with a light socket. The LED controller establishes different operating states for the LEDs that include only a limited number of discrete ON states. The user input interface is configured to receive user input, and in response to the user input, activate the LED controller to operate the LEDs according to one of the different operating states. | 11-19-2015 |
| 20150334800 | STANDBY POWER FOR LED DRIVERS - Methods, devices, and circuits are disclosed regulating a first parameter of one or more LEDs. The methods, devices, and circuits may further be disclosed switching, in response to an indication of a dimmer interface, from regulating the first parameter of the one or more LEDs to regulating a second parameter below a light generation threshold of the one or more LEDs, and switching from regulating the first parameter to regulating the second parameter causes the one or more LEDs to enter a non-light generation mode. | 11-19-2015 |
| 20150340657 | ORGANIC ELECTROLUMINESCENT DEVICE, ILLUMINATION APPARATUS, AND ILLUMINATION SYSTEM - An organic electroluminescent device includes a first electrode, an insulating layer, an organic light emitting layer, a second electrode, and a light transmissive part. The first electrode has an upper face. The insulating layer is provided on the upper face. The insulating layer includes first to fifth insulating parts. The organic light emitting layer is provided on the upper face in between the insulating parts. The second electrode is provided on the organic light emitting layer. The light transmissive part overlaps the first region of the first electrode when projected onto the plane. The light transmissive part makes a phase of a first light permeating the first region to be different from a phase of a second light permeating the second region of the first electrode. | 11-26-2015 |
| 20150342008 | LIGHTING SYSTEM AND METHOD OF CONTROLLING THE LIGHTING SYSTEM - A lighting system is provided that has lighting units and sensor units. One of the sensor units is first sensor unit that comprises a user control device for receiving user commands when a user enters the commands at the user control device. The lighting units are controlled according to a lighting plan that defines a group of the lighting units that is to be switched on in response to detection of a user command at the user control device, based on light transfer coefficients relating light intensities at the sensor units to light output from the lighting units. The transfer coefficients from the lighting units to each sensor unit are determined. The lighting plan is determined from the transfer coefficients by selecting the group of lighting units based on the transfer coefficients from the lighting units to the first sensor unit. The transfer coefficients from the lighting units to a sub-set of the sensor units may be used, the sub-set being selected for the first sensor unit, based on the transfer coefficients for the sensor units from an initial group of one or more of the lighting units associated with the first sensor unit. | 11-26-2015 |
| 20150342011 | LIGHT BULB AND METHOD AND SYSTEM FOR USE IN CONFIGURING SAME - An intelligent light bulb is provided as well as a method, devices and computer program product of configuring such an intelligent light bulb. The intelligent light bulb comprises an LED lighting element and a programmable controller. The programmable controller comprises firmware storing instructions for controlling operations of the LED lighting element, where the firmware includes a passive memory component having a near field communication memory (NFC memory). The firmware is responsive to a signal carrying firmware update information received over a wireless communication link from a device external to the intelligent light bulb for causing a firmware update process to be performed to modify the instructions of the firmware based on the update information carried by the signal. The programmable controller also includes a processing unit in communication with the firmware for operating the LED lighting element at least in part in accordance with the instructions of the firmware. Advantageously, the proposed intelligent light bulb can be configured using the signal carrying the firmware update information. In some embodiments, this may allow modifications of certain operating characteristic of the intelligent light bulb to be performed after manufacturing, including modifications pertaining to light color emitted and/or manner of operating the light bulb. | 11-26-2015 |
| 20150349993 | Circuits and Methods for Decoding Amplitude Modulated Data Signals from Large Amplitude Sine Wave Carrier - A digital load side transmission lighting control apparatus has at one least control gear for controlling at least one lighting source. The control gear includes a period timer to establish an inter-transition time period between each transition within each data packet frame. An inter-transition comparator is in communication with the period timer and configured to compare each of the inter-transition periods with valid inter-transition periods between each transition of the bi-phase encoded data for determining if the inter-transition periods represent valid patterns or are an error has occurred. A data extractor is configured to receive valid bi-phase encoded data from the inter-transition comparator for extracting transmitted data from within the data packet frames. A command formatter is configured to receive the extracted frame data from the data extractor for assembling the telegram bit data pattern for transfer for the subsequent processing. | 12-03-2015 |
| 20150351179 | VOLTAGE CONVERTER AND LIGHTING APPARATUS INCORPORATING A VOLTAGE CONVERTER - A lighting apparatus that may comprise a voltage converter operable to supply a current to at least two LED channels coupled between a high voltage rail and a low voltage rail coupled to the voltage converter output is disclosed. The LED channels may be operated to selectively allow a current to flow through them. The lighting apparatus may also have a control module operable to control the total current from the voltage converter and the current through each of the LED channels. The control module may also be operable to set the respective control signals to maintain a constant total current from the voltage converter while permitting aspects of the light output including, the intensity, color, and color temperature to be set and varied. Additionally, the control module may be operable to synchronize the various control signals, obtain a representative sample of the current through the voltage converter, and operate in different modes. | 12-03-2015 |
| 20150351189 | Controlling System for LED Lamp - A controlling system for LED lamps includes a parameter predetermining module, a searching module, an adding module, and a system configuration module. The parameter predetermining module is configured for predetermining the controlling system to control which type of the LED chip is selected and how much the selected type of LED chip has. The searching module is configured for searching the selected type and amount of the LED chip which is controlled by the controlling system according to the parameter predetermining module. The adding module is configured for adding the searched LED chip into the controlling system. The system configuration module is configured for setting the controlling mode for the added LED chip of the adding module. The controlling system for LED lamps hide most operations which are executed in background of client and provide some simple button for user, which overcomes the professional and complicated interface of the art. | 12-03-2015 |
| 20150351191 | WALL CONTROLLER CONTROLLING CCT - A wall controller that is used for controlling CCT is disclosed. A user input interface allows a user to provide a CCT parameter by pressing a button, entering a value, or the like. The user output interface can provide the user with an indication of a CCT level, which may represent an actual or current CCT level, a maximum or minimum CCT level setting, or the like for an associated lighting fixture. The communication interface facilitates communications with the associated lighting fixture. The control circuitry is configured to receive user input via the user interface; send a signal based on the user input toward the lighting fixture via the communication interface; and control the user output interface to provide the indication of the CCT level. The signal based on the user input may be indicative of an increase or decrease in CCT level, a specific CCT level, or the like. | 12-03-2015 |
| 20150351200 | METHOD FOR ADDRESSING LIGHT FIXTURES, LIGHT FIXTURE FOR LIGHTING AND SYSTEM FOR LIGHTING A ROOM - A method for addressing light fixtures, in a system for lighting, and a plurality of light fixtures arranged within a region for lighting. The area around every light fixture is detected by a camera which is associated with the corresponding light fixture. The position of every light fixture within the region is determined with the aid of the data acquired by the cameras. | 12-03-2015 |
| 20150351203 | SYSTEMS AND METHODS FOR LIGHTING AND APPLIANCE CONTROL - The present invention provides an LED lighting device and an LED lighting control system. The LED lighting device includes an LED lighting unit configured to emit light; an LED driving circuit configured to drive the LED lighting unit, the LED driving circuit being connected to the LED lighting unit; an infrared module configured to send infrared signals to an appliance; and a Wi-Fi module configured to receive and send data. The Wi-Fi module is connected to the infrared module, and sends received data to the infrared module. Embodiments consistent with the present disclosure provide integrated control of lighting and appliances. | 12-03-2015 |
| 20150357315 | TRANSPARENT OVERLAPPING LED DIE LAYERS - A first layer of inorganic first vertical LED dies (VLEDs) of a first color is printed on a conductor surface. A first transparent conductor layer is deposited over the first VLEDs to electrically contact top electrodes of the first VLEDs. An electrically insulated second layer of second VLEDs of a second color is printed over the first transparent conductor layer, and an electrically insulated third layer of third VLEDs of a third color is printed over the first transparent conductor layer. For a color display, the VLEDs are printed in an addressable pixel array. Since the VLEDs are printed as an ink, the overlying VLEDs in a pixel are not vertically aligned, so there is little blockage of light. If the structure is used for general illumination, the VLEDs do not need to be printed in pixel areas. | 12-10-2015 |
| 20150357920 | GENERATION AND REGULATION OF MULTIPLE VOLTAGE AUXILIARY SOURCE - An inverter for a lighting device including one or more solid state light sources is used to power a secondary load, such as a cooling device, sensor, or control with an auxiliary power circuit that provides a selectable auxiliary voltage to the secondary load. The auxiliary power circuit includes a voltage regulation circuit and a voltage selection circuit. The voltage selection circuit provides a feedback voltage to the voltage regulation circuit which his indicative of auxiliary output voltage. The voltage regulation circuit operates based on the feedback voltage and a reference voltage to adjust the auxiliary voltage to a level that differs from the input voltage from the inverter. | 12-10-2015 |
| 20150359050 | LIGHTING DEVICES WITH VARIABLE GAMUT - Lighting devices include multiple emitters (e.g., LEDs, optionally in combination with one or more lumiphors) arranged to be operated in multiple operating states arranged to produce different gamut area index (GAI) or relative gamut (Q | 12-10-2015 |
| 20150359058 | LIGHT EMITTING ELEMENT DRIVE APPARATUS AND PORTABLE APPARATUS USING SAME - A light emitting element drive apparatus capable of outputting the lowest voltage satisfying drive conditions and having high light emitting efficiency and low power loss, and a portable apparatus using the same, comprising an LED drive apparatus to which LEDs of different drive voltages required for emitting light are connected in parallel and driving one or more LEDs, wherein the LED drive apparatus | 12-10-2015 |
| 20150359072 | PILING LIGHT - An outdoor light includes an outer optical lens having a circumferential sidewall and an open top, the sidewall having an outer side and an inner side, with a plurality of circumferential ribs arranged on the outer side. A housing is mounted at the top of the outer optical lens having a bottom facing an inside of the outer optical lens and a top facing away from the outer optical lens. A control circuit is mounted in the housing. A light source is mounted at a bottom of the housing with an inner optical lens disposed between the light source and the outer optical lens, the inner optical lens having a substantially convex outer surface with a central depression. | 12-10-2015 |
| 20150366013 | CONTROLLER FOR INSERTING SIGNALING TRANSITIONS ONTO A LINE VOLTAGE - A controller connected to a line voltage, includes an auto-transformer that provides a nominal line voltage at a first end terminal and a signaling voltage at a transformer tap. A first switch has a first switch terminal connected to the first end terminal of the auto-transformer, and a second switch terminal connected to an output node of the controller. A second switch has a first switch terminal connected to the transformer tap of the auto-transformer, and a second switch terminal connected to the output node. A switch controller is configured to output first and second switch signals responsive to a control signal, to control the first and second switches to insert signaling transitions onto the line voltage by selectively connecting the nominal line voltage at the first end terminal and the signaling voltage at the transformer tap to the output node. | 12-17-2015 |
| 20150366025 | ACTIVE LED MODULE HAVING INTEGRATED LIMITER - LED modules are disclosed having a control MOSFET, or other transistor, in series with an LED. In one embodiment, a MOSFET wafer is bonded to an LED wafer and singulated to form thousands of active 3-terminal LED modules with the same footprint as a single LED. Despite the different forward voltages of red, green, and blue LEDs, RGB modules may be connected in parallel and their control voltages staggered at 60 Hz or greater to generate a single perceived color, such as white. The RGB modules may be connected in a panel for general illumination or for a color display. A single dielectric layer in a panel may encapsulate all the RGB modules to form a compact and inexpensive panel. Various addressing techniques are described for both a color display and a lighting panel. Various circuits are described for reducing the sensitivity of the LED to variations in input voltage. | 12-17-2015 |
| 20150366036 | METHOD FOR CONTROLLING LIGHTING WITH A PORTABLE POINTER DEVICE | 12-17-2015 |
| 20150366038 | COMMUNICATION VIA A POWER WAVEFORM - Methods of controlling an apparatus based on analysis of an input power waveform supplied to the apparatus. The methods may comprise demodulating a plurality of incoming data packets from the input power waveform. The methods may comprise determining whether N data packets of said plurality of incoming data packets are the same, wherein N is a positive integer having a dynamic value that depends on the input power waveform. The methods may comprise controlling at least one aspect of the apparatus based on said N data packets if said N data packets were determined to be the same. Also disclosed are apparatus corresponding to such methods. | 12-17-2015 |
| 20150373813 | REQUESTING INFORMATION FROM LIGHTING DEVICES - A module comprises messaging logic configured to generate a same message for a plurality of destination lighting devices. The message comprises a first portion specifying the plurality of destination lighting devices, and a common second portion specifying the message as being of a type that requests lighting device information. The module also comprises a port configured to output this same message to the plurality of destination lighting devices. If one of the destination lighting devices responds to the message, the processing module receives back the response from the responding device via the port. In addition to identifying the responding one of the destination lighting devices, the response also specifies the requested information of that lighting device. | 12-24-2015 |
| 20150381054 | LED Driver with Small Output Ripple Without Requiring a High-Voltage Primary-Side Electrolytic Capacitor - A power converter reduces output ripple without using an electrolytic primary-side capacitor that can reduce product lifetime. Primary-Side Regulation (PSR) using an auxiliary winding provides a regulated secondary voltage with some low-frequency ripple on a secondary winding of a transformer. A smaller secondary capacitor that is not an electrolytic capacitor filters the output of the secondary side. A bang-bang controller controls the secondary side current to reduce current ripple despite voltage ripple. The bang-bang controller has a series resistor and inductor in series with a load such as an LED. A voltage drop across the series resistor increases when a switch turns on. This increasing voltage drop toggles the switch off once an upper limit voltage is reached. The voltage drop then decreases as inductor current is shunted by a diode, until the voltage drop reaches a lower limit voltage and the switch toggles on again. | 12-31-2015 |
| 20150381240 | UNIT DEVICE AND WIRELESS POWER SUPPLY INFORMATION PROVIDING SYSTEM - In a unit device, a setup unit sets arrangement information, which indicates the position of each unit device in a state where a plurality of unit devices configure a unit device group, according to a sequence that conforms to the arrangement information of adjacent devices after the aforementioned group is configured. A storage unit stores the arrangement information configured by the setup unit. A provision control unit specifies the content of the information providing command, and by collating the content of the specified information providing command with the arrangement information stored in the storage unit, provides either of at least two or more states by means of a provision unit. | 12-31-2015 |
| 20160007422 | SOLID-STATE SOURCES OF LIGHT FOR PREFERENTIAL COLOUR RENDITION - Polychromatic light sources of white light, which have spectral power distributions composed of at least three different components, such as clusters of coloured light-emitting diodes (LEDs) or LEDs with partial or complete conversion in phosphors. Disclosed are the peak wavelengths and relative partial radiant fluxes of the spectral components that allow rendering certain fractions of an extended colour palette with high fidelity and with increased chromatic saturation, respectively, and hence meeting subjective preferences to colour quality of illumination. | 01-07-2016 |
| 20160007427 | METHOD AND SYSTEM FOR ACTUATING LOADS CONNECTED TO A BUS SYSTEM - A method for actuating loads connected to a bus system, in particular lamp operating devices, by at least one command generator which is likewise connected to the bus system. The actuation is carried out by the transmission of data packets, wherein the command generator fills a data packet region assigned to the command generator after the data packet transmission is initiated by a central clock generator. | 01-07-2016 |
| 20160014857 | POWER SUPPLY CIRCUIT AND ELECTROLUMINESCENT DISPLAY DEVICE INCLUDING THE SAME | 01-14-2016 |
| 20160014867 | Device for providing automatic power to different lamp types | 01-14-2016 |
| 20160021714 | SYSTEMS AND METHODS FOR MAINTAINING DIMMER BEHAVIOR IN A LOW-POWER LAMP ASSEMBLY - In accordance with the present disclosure, a control circuit may be employed for controlling delivery of energy from an input of a lamp assembly to a load of the lamp assembly. The control circuit may transfer a first amount of energy from an input to a load (e.g., comprising one or more light-emitting diodes) to cause the load to generate light external to the lamp assembly in accordance with a control setting of a dimmer indicating a user-desired amount of energy to be transferred to the load. The control circuit may also transfer a second amount of energy from the input to a second load to cause the second load (e.g., comprising one or more lower-efficacy light-emitting diodes) to dissipate the second amount of energy external to the lamp assembly, wherein the second amount of energy comprises energy present in the input signal other than the first amount of energy. | 01-21-2016 |
| 20160029457 | ZIGBEE LIGHTING CONTROL APPARATUS AND METHOD - Disclosed herein are a Zigbee lighting control apparatus and method. The Zigbee lighting control method includes checking whether a Zigbee switch to which a Zigbee lighting control apparatus is applied is in a reset state, performing a broadcast-based link connection a number of times identical to a number of currently installed Zigbee lighting devices if the Zigbee switch is in the reset state, performing a broadcast-based link connection a number of times identical to a preset number of Zigbee lighting devices if it is checked that the Zigbee switch is not in the reset state, performing a unicast-based link connection on remaining Zigbee lighting devices that are not connected to a link, among Zigbee lighting devices within a preset range upon performing the broadcast-based link connection, and controlling Zigbee lighting devices that have been connected via the broadcast-based link connection or the unicast-based link connection. | 01-28-2016 |
| 20160037613 | Distributed Control of Lights Subject to Compliance Constraints - A lighting control system is provided which accepts user lightning commands, generates controls in accordance with predetermined operating policies and directs light fixtures to produce brightness, color, or directional pattern of the light emitted by the light fixtures. The lighting control system determines whether the light emitted by the light fixtures complies with government regulations, and building policies, and insures that controls are adjusted such that all regulations regarding lighting safety and working conditions, as well as building policy and energy management targets are adhered to. In addition, a way to reconcile conflicting user requests for lighting settings is provided. | 02-04-2016 |
| 20160037614 | ILLUMINATION CONTROL SYSTEM, CONTROL APPARATUS, AND ILLUMINATION CONTROL METHOD - Illumination control system | 02-04-2016 |
| 20160044756 | CIRCUIT ARRANGEMENT FOR CONTROLLING A LED UNIT AND METHOD OF OPERATING THE SAME - A circuit arrangement ( | 02-11-2016 |
| 20160044761 | USER-ACTUATED LIGHTNING EFFECT DEVICE - A user-actuated lighting effect device includes a housing, a light-generating lamp coupled to the housing, a power source, and a control circuit. The control circuit includes a user-actuated switch operably coupling the lamp and the power source. The lamp creates a lighting effect on or near the user when the first switch is on. The housing can be mounted in a use orientation on a pedal board. The lamp can create an upwardly directed lighting effect. An operational mode can be selected using a lighting mode switch. | 02-11-2016 |
| 20160057831 | SOLID-STATE LIGHT SOURCE MODULE, SOLID-STATE LIGHTING SYSTEM AND OPERATING METHOD THEREOF - A solid-state light source module that is utilized to be arranged in at least one dimension to form a solid-state lighting system is provided. The solid-state light source module includes a main body, a signal input interface, a signal output interface, a solid-state light source, and a control unit. The signal input interface is utilized to receive at least one location input command. The signal output interface is utilized to issue a location output command. The control unit is utilized to add one to the second location input command to serve as the location output command, and to control luminosity of the solid-state light source. A solid-state lighting system and an operating method thereof are also provided. | 02-25-2016 |
| 20160062384 | CURRENT STEERING MODE DIGITAL-TO-ANALOG CONVERTER CIRCUIT CONFIGURED TO GENERATE VARIABLE OUTPUT CURRENT - A current source circuit is configured to receive a reference current at the input circuit path of a current mirror circuit. The current mirror circuit mirrors the reference current and generates mirror currents at a number of output circuit paths. A corresponding number of control transistors are connected in series with the output circuit paths. Each control transistor is selectively actuated in response to a control signal. A decoder circuit is configured to receive a variable control signal and generate actuation signals in response thereto to selective actuate the control transistors to pass the mirror current to an output node. At the output node, the passed mirror currents are summed to generate a variable output current. The variable current is monotonically modulated in response to the variable control signal. | 03-03-2016 |
| 20160064363 | MICRO ASSEMBLED HYBRID DISPLAYS AND LIGHTING ELEMENTS - The disclosed technology relates generally hybrid displays with pixels that include both inorganic light emitting diodes (ILEDs) and organic light emitting diodes (OLEDs). The disclosed technology provides a hybrid display that uses a mixture of ILEDs and OLEDs in each pixel. In certain embodiments, each pixel in the hybrid display includes a red ILED, a blue ILED, and a green OLED. In this instance, the OLED process would not require a high resolution shadow mask, thereby enhancing the manufacturability of OLEDs for larger format displays. Additionally, the OLED process in this example would not require any fine lithography. The OLED subpixel (e.g., green subpixel) can be larger and the ILEDs can be small (e.g., micro-red and micro-blue ILEDs). The use of small ILEDs allows for other functions to be added to the pixel, such as micro sensors and micro integrated circuits. | 03-03-2016 |
| 20160073469 | LIGHTING DEVICE, LUMINAIRE, AND LIGHTING SYSTEM - A lighting device includes: a first input terminal for receiving an AC voltage phase-controlled by a first phase-control dimmer; a first light source unit which emits light of a first color; a second light source unit which emits light of a second color different from the first color; a control circuit which controls a total amount of light emitted from the first and second light source units and the color of combined light including the light emitted from the first and second light source units. The control signal includes first and second control information. The first control information is for controlling either one of the total amount of light and the color of combined light, and corresponds to the conduction angle of the first phase-control dimmer. The second control information is for controlling the other of the total amount of light and the color of combined light. | 03-10-2016 |
| 20160073480 | METHOD FOR CONTROLLING A LAMP HAVING A PLURALITY OF SUB-UNITS - A method for controlling a lamp, which has a plurality of controllable sub-units is disclosed. First control information concerning the light output of only some of the controllable sub-units is fed to a control unit of the lamp on the input side, wherein the control unit determines a second control information concerning the light output of all sub-units on the basis of the first control information and transmits the second control information to the sub-units connected on the output side. | 03-10-2016 |
| 20160073482 | IMPLEMENTING A TARGET LIGHTING SCENE IN AN INTERNET OF THINGS ENVIRONMENT USING A MOBILE LIGHT OUTPUT DEVICE - In an embodiment, a control device is configured to control a mobile IoT light output device (e.g., a mobile phone, etc.) in an Internet of Things (IoT) environment. The control device detects that the mobile IoT light output device is present in a region of the IoT environment along with one or more stationary IoT light output devices. The control device determines a target lighting scene to be implemented within the region of the IoT environment, and establishes a lighting configuration of the mobile IoT light output device to be used in conjunction with a lighting configuration of each of the one or more stationary IoT light output devices to achieve the target lighting scene. | 03-10-2016 |
| 20160081166 | Color-Changing Lighting Dynamic Control - A control gateway for colored or color-changing lighting fixtures to allow access to local and remote control systems with real time control with power backup for security triggering using an established color code to indicate the nature of the emergency. | 03-17-2016 |
| 20160088708 | WIRELESS CONTROL OF LIGHTING SYSTEMS - A communication protocol is disclosed to wirelessly control and configure an array of lighting fixtures. The protocol allows dynamic lighting of a group of light fixtures or a single light fixture such that the protocol can support unicasting, multicasting and broadcasting communications. This protocol enables intelligent lighting fixtures to be automatically discovered in a wireless network. The protocol may also be used to configure the network parameters automatically, and can also upgrade the firmware or other local memory of the lighting fixtures. Additionally, the protocol may be used to control a media projecting device and/or servers, to change the media contents based on a scene locally selected at the area being illuminated. The lighting and media can collectively define or otherwise provide an overall “scene” by virtue of the lighting characteristics and media playback. | 03-24-2016 |
| 20160095175 | PoE PD Automatic MPS - In a Power over Ethernet (PoE) system, a Powered Device (PD) having circuitry to measure the load current from a Power Sourcing Equipment (PSE) in the PD. Circuitry compares the measured load current with a first threshold. Circuitry automatically generates load pulses for signaling the PSE, that power to the PD should be maintained. | 03-31-2016 |
| 20160095177 | POWER TOOL - A power tool includes a function device for performing the main function of the power tool, a positive connecting terminal for connecting with a positive pole of a power supply, a negative connecting terminal for connecting with a negative pole of the power supply, a main switch for controlling the connection between the output terminal and the power supply, an illumination circuit having at least one illumination member, an illumination control circuit for controlling the connection between the illumination member and the power supply, and a delay circuit for controlling the illumination control circuit so that the illumination member can still illuminate when the main function of the power tool is shut off. | 03-31-2016 |
| 20160095191 | SYSTEM AND METHOD OF AUTONOMOUS RESTORE POINT CREATION AND RESTORATION FOR LUMINAIRE CONTROLLERS | 03-31-2016 |
| 20160113089 | METHOD FOR CONTROLLING DIMMING OF STREET LAMP TO REDUCE POWER CONSUMPTION AND STREET LAMP - The present invention relates to a method for controlling dimming of a streetlamp to reduce power consumption. In the method for controlling the dimming of the streetlamp, the streetlamp comprises a plurality of illumination units, of which dimming can be individually controlled, and at least one illumination unit among the plurality of illumination units has a wattage smaller than that of another illumination unit. According to the present invention, a plurality of LEDs included in a streetlamp are randomly divided according to the direction of progress of a vehicle and dimming of the divided LEDs are controlled with different levels, so that luminance degradation felt by a driver on a road can be minimized. As a result, the present invention can save energy and solve inconvenience to the driver. | 04-21-2016 |
| 20160128141 | THERMOELECTRICALLY POWERED PORTABLE LIGHT SOURCE - Provided is a portable, thermoelectrically powered device, such as a flashlight or headlamp. The device comprises at least one thermoelectric generator for extracting body heat from a user, the Thermoelectric generator located on and extending through an elongated open ended outer shell, a heat sink in contact with an inner surface of the thermoelectric generator and configured to provide an elongated first cooling channel therethrough, circuitry in electrical communication with the thermoelectric generator, the circuitry comprising a transistor oscillator, a step-up transformer and a decoupling capacitor, the circuitry in electrical communication with a power sink, such that in use, a temperature gradient across the thermoelectric generator is sufficient to result in generation of at least about 25 μW of power. | 05-05-2016 |
| 20160128152 | LIGHTING-ON/OFF CONTROL CIRCUIT AND LIGHTING-ON/OFF CONTROL METHOD - Provided is a lighting-on/off control circuit that can increase number of LEDs that can go on/off, without increasing number of control signal lines. It includes a control circuit outputting plural first and second signals, a first push-pull circuit receiving plural first signals, a second push-pull circuit receiving plural second signals, and an LED group capable of being connected in between one of outputs of first push-pull circuit and one of outputs of second one. When first signal has a first value and second signal has a second value, a first current flows from first to second push-pull circuit; when second signal has a first value and first signal has a second value, a second current flows from second to first push-pull circuit. | 05-05-2016 |
| 20160128155 | SOLID STATE LIGHTING FIXTURE WITH INCANDESCENT DIMMING CHARACTERISTICS - A dimmable LED lighting system includes first, second and third types of LED light sources, and an LED driver to control the supply of current on first, second and third channels, respectively to the first, second and third types of LED light sources. The first, second and third types of LED light sources are selected according to their spectral power distribution (SPD) curves. The selected SPD curves together model a dimming color curve that is characteristic of an incandescent light source when the first, second and third types of LED light sources are separately driven with current at predefined power ratios that correspond to dimming levels over a dimming region of the dimming color curve. The dimmable LED lighting system can have a color rendering index R | 05-05-2016 |
| 20160128157 | MODULAR SOLID STATE LIGHTING APPARATUS PLATFORM WITH LOCAL AND REMOTE MICROPROCESSOR CONTROL - A solid state lighting platform comprised of one or more modular lighting instruments each of which are comprised of an enclosure, driver/logic module(s) governed by a microprocessor and a unique array of emitter boards consisting of a multitude of lighting elements. The lighting instruments may joined together using magnets embedded in the enclosure(s) and receive control instructions from a smart device or any other light on the wired or wireless network. A unique algorithm and look up table allow flicker free dimming and highly accurate color temperature tuning from the microprocessor. | 05-05-2016 |
| 20160143109 | Advanced Light Emitting Diode Luminaire - An advance light emitting diode luminaire is disclosed. According to one embodiment, an apparatus comprises a first LED array, wherein the first LED array outputs first light in a downward direction. The apparatus includes a second LED array, wherein the second LED array outputs second light in an upward direction. The apparatus further comprises a harp between the first LED array and the second LED array. | 05-19-2016 |
| 20160143115 | POWER SUPPLY DOUBLE SWITCH CONTROLLER - A power supply double switch controller has a ballast and a controller on the ballast having a first and second switch connector. A first switch is connected to the first and second switch connector on the ballast. The first switch connector is a toggle switch with a first switch first position and a first switch second position. The second switch is connected in series to the first switch. The second switch is a toggle switch with a second switch first position and a second switch second position. A mode dimming cycle is programmed on the controller. The controller is configured to recognize a momentary power outage at the first and second switch connector when the second switch travels from a second switch first position to a second switch second position. | 05-19-2016 |
| 20160143118 | LIGHTING CONTROL CONSOLE HAVING A DUAL ENCODER AND METHOD FOR OPERATING A LIGHTING CONTROL CONSOLE HAVING A DUAL ENCODER - A lighting control console for controlling a lighting system has at least one dual encoder for entering input values. The dual encoder includes a first shaft rotatably mounted in a housing and a first locking mechanism, for locking different rotational positions of the first shaft, and at least one first rotation signal generator for generating a data signal showing a switchover between two locking positions. A second shaft is mounted in the housing and is coaxially rotatable with respect to the first shaft. The second shaft is provided at the dual encoder, and a second locking mechanism for locking different rotational positions of the second shaft and at least one second rotation signal generator for generating a data signal showing a switchover between two locking positions. A method for entering data, more precisely input values, at the lighting control console is also disclosed. | 05-19-2016 |
| 20160150612 | SECURITY LIGHTING SYSTEMS FOR PERIMETER SECURITY INCLUDING INFRARED AND LED LIGHTS AND LIGHT INTENSITY CONTROLLERS - A security light system includes a plurality of light fixtures, whereby each light fixture has a light module including an infrared light and an LED that generates white light. Each light fixture includes a driver circuit for controlling operation of the infrared light and the LED. The system includes a light intensity controller for communicating with each light fixture. The light intensity controller includes a control element that enables an operator to selectively increase and decrease the intensity level of the infrared and white light generated by the infrared light and the LED. | 05-26-2016 |
| 20160150616 | TEMPERATURE ADJUSTED DIMMING CONTROLLER - Systems and methods are disclosed for adjusting the correlated color temperature (CCT) reflecting the warmth of emitted light for a non-tungsten based lighting device as intensity of the lighting device is modified. The CCT of the non-tungsten based lighting device is determined at a lighting control device that can provide fixture-dependent driver levels to various lighting devices of varying types. A lighting controller engine can determine a white component color temperature value based on a desired intensity level and a default CCT value received via a user interface of the lighting control device. The lighting control device can determine the driver levels for controlling characteristics of light emitted from the non-tungsten based lighting device based on the white component color temperature value and a user defined color level. The lighting control device can scale the white component color temperature to reflect variations of warmth as the intensity level is adjusted. | 05-26-2016 |
| 20160156152 | LIGHTING CIRCUIT AND LAMP SYSTEM | 06-02-2016 |
| 20160156269 | POWER CONVERTER CIRCUITRY WITH SWITCHING FREQUENCY CONTROL CIRCUITRY | 06-02-2016 |
| 20160165679 | Network Controlled Multi-Color Lighting Services - Techniques presented herein are directed to the coordinated network-based control of the color capabilities of multi-color fixtures. A network device is connected to multi-color light fixtures each comprising a local processor and a plurality of color light emitters. The network device receives data inputs from one or more data sources and uses the data inputs to identify a color informational display for presentation across a plurality of the multi-color light fixtures. The network device generates messages encoding light control settings for each of the plurality of multi-color light fixtures enabling each multi-color light fixture to present a spatial or temporal segment of the color informational display and sends the messages to the plurality of light fixtures. Execution of instructions embedded in the messages by the local processors results in the creation of the color informational display across the plurality of multi-color light fixtures | 06-09-2016 |
| 20160174337 | LUMINAIRE SYSTEM HAVING TOUCH INPUT FOR CONTROL OF LIGHT OUTPUT ANGLE | 06-16-2016 |
| 20160174342 | METHOD FOR CONTROLLING LIGHTING ELEMENT AND ASSOCIATED SYSTEM | 06-16-2016 |
| 20160174347 | Networked Lighting Management | 06-16-2016 |
| 20160183344 | MULTI-CHANNEL LIGHTING FIXTURE HAVING MULTIPLE LIGHT-EMITTING DIODE DRIVERS | 06-23-2016 |
| 20160192453 | LIGHTING APPARATUS - Embodiments provide a lighting apparatus including a light source unit including a first light source and a second light source, a light source driving unit including a first driver configured to supply first supply current to the first light source and a second driver configured to supply second supply current to the second light source, and a controller configured to control the first driver so as to vary the level of the first supply current and to control the second driver so as to fix the level of the second supply current. | 06-30-2016 |
| 20160192461 | SYSTEMS AND METHODS OF CONTROLLING LIGHT SOURCES ACCORDING TO LOCATION - Systems and methods of the disclosed subject matter provide a first light source, a second light source, and a controller communicatively coupled to the first light source and the second light source, the controller to control a first operation of the first light source according to an input received by the controller for at first period of time, and to control a second operation of the second light source when the input received by the controller is for a second period of time that is greater than the first period of time. | 06-30-2016 |
| 20160198534 | COLOR TEMPERATURE ADJUSTING METHOD OF SOLID STATE LIGHT EMITTING DEVICE | 07-07-2016 |
| 20160198539 | Board-mounted Parallel Circuit Structure with Efficient Power Utilization. | 07-07-2016 |
| 20160198540 | CONTROL HEAD WITH ELECTROLUMINESCENT PANEL IN LAND MOBILE RADIO | 07-07-2016 |
| 20160198542 | Intelligent Lighting Apparatus | 07-07-2016 |
| 20160198550 | SYSTEMS AND METHODS FOR MANAGING LIGHTING SETTINGS IN A LIGHTING SYSTEM | 07-07-2016 |
| 20160254495 | ORGANIC ELECTROLUMINESCENT ELEMENT, LIGHTING DEVICE, LIGHTING SYSTEM, AND METHOD FOR MANUFACTURING ORGANIC ELECTROLUMINESCENT ELEMENT | 09-01-2016 |
| 20160255695 | LIGHTING SYSTEM USING SENSORS | 09-01-2016 |
| 20160255703 | DC TRACK LIGHTING SYSTEMS CONTROL | 09-01-2016 |
| 20160381744 | LOW-FLICKER LIGHT-EMITTING DIODE LIGHTING DEVICE - An LED lighting device driven by a rectified AC voltage includes a luminescent device, a charge storage unit and a current controller. The charge storage unit is configured to turn on the luminescent device when the rectified AC voltage is still insufficient to turn on the luminescent device. The current control unit is configured to allow the LED lighting device to have constant luminance regardless of the level of the rectified AC voltage, thereby improving flicker phenomenon. | 12-29-2016 |
| 20160381762 | DEVICES AND METHODS FOR PROVIDING A DISTRIBUTED MANIFESTATION IN AN ENVIRONMENT - The present invention concerns a projection system for providing a distributed manifestation within an environment. The projection system includes a data generator for generating a plurality of data sets of associated state data and spatial coordinate data. The projection system also includes a projector in communication with the data generator for receiving the data sets. The projector is provided with a signal generating module for generating a plurality of electromagnetic signals, and a projecting module for projecting each of the electromagnetic signals towards a target location within the environment. The projection system also includes a plurality of receiving units distributed within the environment, each receiving unit having a receiver for receiving one of the electromagnetic signals when the receiving unit is positioned in the corresponding target location, each receiving unit being adapted to perform a change of state in response to the state data. | 12-29-2016 |
| 20160381772 | INFRARED EMITTER FOR AN AIRFIELD LIGHTING SYSTEM - In an example embodiment, there is disclosed herein an airfield lighting system that employs an IR emitter. The IR emitter can be located within an airfield lighting fixture or external to the lighting fixture. Activating the IR emitter can enable an Enhanced Flight Vision System (“EFVS”) to determine the location of lighting fixtures which may be undetectable by the EFVS, such as Light Emitting Diode (“LED”) fixtures. | 12-29-2016 |
| 20170238390 | WHITE LIGHT SOURCE AND WHITE LIGHT SOURCE SYSTEM | 08-17-2017 |
| 20170238391 | CONTROLLER FOR A LAMP | 08-17-2017 |
| 20170238401 | Solid State Lighting Systems | 08-17-2017 |
| 20180027621 | CONVERTER FOR LIGHT SOURCES | 01-25-2018 |
| 20180027636 | WIRELESS LIGHTING CONTROL SYSTEM | 01-25-2018 |
