Patent application number | Description | Published |
20090159919 | LED LIGHTING APPARATUS WITH SWIVEL CONNECTION - Disclosed is a LED lighting apparatus with one or more swivel connections. The LED lighting apparatus includes a housing with at least one end, at least one light emitting diode extending along the housing and at least one end cap. The end cap has an opening with a sidewall to cap the end of the housing and a surface opposite the opening and spanning the sidewall. At least two pin connectors extend from the surface and are connectable to a standard fluorescent or incandescent light fixture. Various configurations are described such that the housing will rotate within the end caps with application of a rotational force after connection of the pin connectors to the light fixture to adjust the light output direction of the LED lighting apparatus. | 06-25-2009 |
20090161359 | LIGHT DISTRIBUTION USING A LIGHT EMITTING DIODE ASSEMBLY - A fluorescent light tube retrofit with light emitting diodes (LEDs) that evenly distribute light to avoid bright spots is disclosed. One tube in the form of a conventional fluorescent tube includes two LEDs mounted to the tube on opposite sides of a single circumference of the tube. The LEDs can face the center of the tube, or the LEDs can be offset facing relative to the center of the tube. A reflecting surface can be disposed inside the tube to reflect light evenly toward an arc of the tube. Alternatively, at least one LED can be oriented to direct light into a light pipe that curves around the interior of the tube. | 06-25-2009 |
20090290334 | ELECTRIC SHOCK RESISTANT L.E.D. BASED LIGHT - A LED-based replacement light for a fluorescent socket is constructed such that an entirety of a radially outer portion of a tubular housing at least partially defined by a high-dielectric light transmitting portion is formed of a high-dielectric material. Forming a radially outer portion of the tubular housing of a high-dielectric material prevents a person handling the light from being shocked as a result of capacitive coupling occurring when the LED-based replacement light is installed one end at a time. A circuit board is in thermally conductive relation with the tubular housing, allowing for conduction of heat generated by the LEDs from a side of circuit board opposite the LEDs to the tubular housing for dissipation to the ambient environment. | 11-26-2009 |
20100008085 | METHOD OF FORMING LED-BASED LIGHT AND RESULTING LED-BASED LIGHT - A method of forming a LED-based light for replacing a conventional fluorescent bulb in a fluorescent light fixture includes shaping an elongate sheet of highly thermally conductive material to fashion a heat sink. Shaping the heat sink allows fashioning the heat sink to define cover and end cap attachment structures, surfaces for mounting LEDs at various angles, and a high surface area to width ratio for dissipating heat. | 01-14-2010 |
20100027259 | FLUORESCENT TUBE REPLACEMENT HAVING LONGITUDINALLY ORIENTED LEDS - An LED-based light for replacing a conventional fluorescent tube in a fixture is provided. The LED-based light includes an elongate light transmitting rod defining a bore and at least one LED positioned at one or both ends of the rod and oriented to produce light longitudinally into a portion of the rod radially outward of the bore. At least one connector is physically coupled to an end of the rod and electrically coupled to the at least one LED. The at least one connector is adapted for physical and electrical connection to the fixture. In operation, the directional light produced by the at least one LED is dispersed by way of reflection, refraction, and/or diffusion while traveling longitudinally through the rod to reduce the appearance of bright spots. | 02-04-2010 |
20100052542 | LED LAMP FAILURE ALERTING SYSTEM - Disclosed herein are embodiments of failure alerting systems for LED lamps and LED lamps having the same. An illustrative failure alerting system comprises a photodetector configured to detect an actual light output from the at least one LED, a regulator configured to receive a signal from the photodetector when the actual light output is below a target light output and to increase a current to the at least one LED to maintain the target light output, and a low light output indicator configured to receive a signal from the photodetector when the actual light output remains below the target light output and to produce a low light output signal. A thermal sensor can also be included and configured to sense an operating temperature of the LED and to control the regulator to increase the current and the target light output to ensure the operating temperature does not exceed the target temperature. | 03-04-2010 |
20100067231 | LED-BASED LIGHT HAVING RAPIDLY OSCILLATING LEDS - An LED-based light includes a support structure. At least one oscillator is connected to the support structure. At least one LED is coupled to each oscillator. The oscillator can oscillate the LED to produce a light blurring effect. | 03-18-2010 |
20100102730 | LIGHT AND LIGHT SENSOR - An LED-based light tube for use in a conventional fluorescent fixture can feature a housing including a light transmitting portion. At least one electrical connector can be attached to the housing and configured for engagement with the conventional fluorescent fixture. At least one LED can be arranged to produce light in a direction toward the light transmitting portion. A sensor can be operable to detect a brightness level and output a corresponding signal. A controller can be in electrical communication with the at least one electrical connector and operable to control the at least one LED in response to the signal. | 04-29-2010 |
20100102960 | INTEGRATION OF LED LIGHTING CONTROL WITH EMERGENCY NOTIFICATION SYSTEMS - An emergency lighting system for a building includes at least one LED-based light. An emergency detector is operable to detect an emergency. The emergency detector produces an emergency signal in response to the emergency. A controller is operable to control the at least one LED-based light in response to the emergency signal. | 04-29-2010 |
20100103664 | LIGHTING INCLUDING INTEGRAL COMMUNICATION APPARATUS - A lighting and communication system for use in a standardized light fixture is provided. The lighting and communication system includes a light source and a communication apparatus including at least one of an audio device and a camera. At least one electrical connector configured for physical and electrical connection to the standardized light fixture is included, and the at least one electrical connector is electrically connected to the light source and the communication apparatus. | 04-29-2010 |
20100103673 | END CAP SUBSTITUTE FOR LED-BASED TUBE REPLACEMENT LIGHT - Disclosed herein is a replacement light for a fluorescent tube usable in a fluorescent fixture. The light includes a housing having a first end and a second end opposite the first end. A support structure is disposed within the housing. At least one LED is positioned within the housing and is arranged on the support structure. A first seal has at least one aperture and is disposed within the first end of the housing. The first seal is configured to conform to an inner circumference of the first end of the housing. At least one electrical connector extends through the at least one aperture is and connectable to the fluorescent fixture. | 04-29-2010 |
20100106306 | INTEGRATION OF LED LIGHTING WITH BUILDING CONTROLS - An LED-based light can be installed in a conventional light fixture. The LED-based light can include a sensor operable to output a first signal indicative of whether an area of one or more of the rooms is in an occupied state or a non-occupied state, and the LED-based light can also include an LED controller operable to control at least one LED in the light in response to the first signal. Additionally, the LED-based light can include a transmitter operable to output a second signal indicative of whether the area is in the occupied state or the non-occupied state to a building environment regulator. | 04-29-2010 |
20100172149 | LIGHT DISTRIBUTION USING A LIGHT EMITTING DIODE ASSEMBLY - A fluorescent light tube retrofit with light emitting diodes (LEDs) that evenly distribute light to avoid bright spots is disclosed. One LED lighting unit includes a tubular housing and a plurality of LED assemblies mounted about a circumference of the tubular housing. LEDs face inward from a mounting surface that is angled offset of the tube. Alternatively, at least one LED can be oriented to emit light parallel to a tangent of the housing into a light pipe that curves inside at least a portion of the tubular housing. | 07-08-2010 |
20100177532 | LED LENS - A light modifier for an LED producing light about a central axis is provided. The light modifier includes a lens defining an indentation. The indentation is angled relative to the central axis by an amount less than a complementary angle of a critical angle of the lens along the indentation. The lens can reduce the appearance of a bright spot created by the LED. | 07-15-2010 |
20100181925 | Ballast/Line Detection Circuit for Fluorescent Replacement Lamps - Disclosed herein is a replacement light for a fluorescent tube usable in a fluorescent fixture connected to a power source and containing at least one LED, the improvement including a detection circuit for connection to the power source, the detection circuit configured to identify the power source. | 07-22-2010 |
20100220469 | D-SHAPED CROSS SECTION L.E.D. BASED LIGHT - A LED-based replacement light for a fluorescent socket is constructed such that a tubular housing has a D-shaped cross section with a flat base with opposing longitudinal edges, opposing sides extending generally perpendicular to the flat base from the opposing longitudinal edges, and a curved surface spanning the opposing sides opposite the flat base. A circuit board structure defines a LED-mounting side with multiple LEDs mounted on the LED-mounting side at predetermined intervals along a length of the circuit board, with at least areas of a primary heat transferring side directly underlying the respective LEDs in thermally conductive relation with the tubular housing for highly electrically insulated thermal transmission of heat generated by the multiple LEDs from the circuit board to an ambient environment surrounding an exterior of the tubular housing. At least one electrical connector is at a longitudinal end of the housing in electrical communication with the circuit board. | 09-02-2010 |
20100301729 | SCREW-IN LED BULB - An LED-based light can include a highly thermally conductive base having multiple radially outward projecting nodes. The nodes can be spaced apart in an axial and circumferential directions of the base. An electrical connector and at least one LED can be attached to the base, and a light transmitting bulb can be attached to the base and can cover the at least one LED. The geometry of the base can promote heat dissipation, which can allow the at least one LED to use enough power to produce an amount of luminosity that allows the LED-based light to replicate, for example, an incandescent light without overheating. | 12-02-2010 |
20100320922 | ILLUMINATION DEVICE INCLUDING LEDS AND A SWITCHING POWER CONTROL SYSTEM - Disclosed herein is an illumination device including light-emitting diodes, an alternating current input, a full-wave rectifier coupled to the alternating current input and configured to produce a rectified voltage output and a power converter, the power converter having a switching element electrically coupled to the rectified voltage output of the full-wave rectifier. An improvement of the illumination device includes a feedback circuit configured to determine an average current across the light-emitting diodes and to invert a signal representing the average current to provide a switching signal to the switching element such that, for a range of operating points, increasing a current drawn into the power converter will decrease LED power and decreasing the current drawn into the power converter will increase LED power. | 12-23-2010 |
20100321921 | LED LAMP WITH A WAVELENGTH CONVERTING LAYER - Disclosed herein are embodiments of replacement lights for conventional fluorescent tube lights for use in a conventional fluorescent fixture. One embodiment comprises a tubular housing, a circuit board disposed within the housing, a pair of end caps disposed on opposing ends of the tubular housing with at least one pin connector extending from each end cap, an array of LEDs arranged longitudinally along the circuit board, a number and spacing of the LEDs being such as to uniformly and fully occupy a space between the end caps, wherein at least one of the connectors is electrically connected to the LEDs and a wavelength-converting material in contact with at least a portion of the tubular housing. The wavelength-converting material is excited by transmitted light from the LEDs to produce visible light. | 12-23-2010 |
20110156608 | LIGHT TUBE AND POWER SUPPLY CIRCUIT - The present invention provides a light tube for illumination by a power supply circuit including a bulb portion and a pair of end caps disposed at opposite ends of the bulb portion. A plurality of light emitting diodes are disposed inside the bulb portion and in electrical communication with the pair of end caps for illuminating in response to electrical current to be received from the power supply circuit. | 06-30-2011 |
20110188240 | LIGHTING INCLUDING INTEGRAL COMMUNICATION APPARATUS - A lighting and communication system for use in a standardized light fixture is provided. The lighting and communication system includes a light source and a communication apparatus, and the communication apparatus is at least one of an audio device or a camera. At least one electrical connector configured for physical and electrical connection to the standardized light fixture is included, and the at least one electrical connector is electrically connected to the light source and the communication apparatus. | 08-04-2011 |
20110234076 | INSIDE-OUT LED BULB - An LED based light comprises a base, a light structure, a heat dissipating structure, and at least one LED. The light structure is adjacent to the base and extends along a longitudinal axis of the light. The light structure includes an inner surface and an outer surface and defines a cavity, and the heat dissipating structure extends into the cavity. At least one LED is mounted in thermally conductive relation to the heat dissipating structure. In one version, the light structure is an annular flange, and an organic LED is mounted to the outer surface. In another version, the light structure is a light pipe configured to distribute a light produced by the at least one LED in a predetermined light distribution. | 09-29-2011 |
20110234107 | LED LIGHT WITH THERMOELECTRIC GENERATOR - An LED based light and a method of providing power to the LED are disclosed. The LED based light includes at least one LED and at least one thermoelectric generator having a first side and a second side. The first side is thermally coupled to the at least one LED such that heat generated by the at least one LED is conducted to the at least one thermoelectric generator, producing a temperature differential between the first side and second side. The at least one thermoelectric generator is configured to produce electrical energy from the temperature differential. | 09-29-2011 |
20110235318 | LED LIGHT TUBE WITH DUAL SIDED LIGHT DISTRIBUTION - Disclosed herein are embodiments of LED-based lights for use in fluorescent fixtures that emanate light in a plurality of directions. One embodiment disclosed herein of an LED light for use in a fluorescent light fixture comprises a housing and a circuit board having a first surface configured to face an illumination area, the circuit board mounted in the housing and defining a plane conceptually dividing the housing into a first portion and a second portion. At least one LED is mounted on the first surface of the circuit board and is configured to emanate light in a first direction. Light distribution means is configured to distribute a portion of the light emanated in the first direction to at least a second direction different than the first direction. | 09-29-2011 |
20110235321 | METHOD OF FORMING LED-BASED LIGHT AND RESULTING LED-BASED LIGHT - A method of forming a LED-based light for replacing a conventional fluorescent bulb in a fluorescent light fixture includes forming a heat sink by shaping an elongate sheet of highly thermally conductive material to increase a surface area to width ratio thereof mounting LEDs in thermally conductive relation with the heat sink, and enclosing the LEDs within a light transmitting cover. | 09-29-2011 |
20120008314 | LED LIGHT TUBE AND METHOD OF MANUFACTURING LED LIGHT TUBE - An LED light tube and method of manufacturing an LED light tube includes the steps of forming an LED light tube housing of a first housing segment joined to a first end cap. One end of a circuit board is inserted through the one housing segment into contact with the first end cap. One or more additional housing segments are slid over the circuit board into engagement with ends of previously mounted housing segments. A second end cap is joined to the engaged ends of the multiple housing segments are fixed together to complete a unitary housing. | 01-12-2012 |
20120008315 | INDEPENDENT MODULES FOR LED FLUORESCENT LIGHT TUBE REPLACEMENT - Disclosed herein are embodiments of a LED fluorescent tube replacement lamp and lighting modules from which the lamp is constructed. One embodiment of a replacement lamp includes a plurality of interchangeable lighting modules that are configured to be electrically connected to adjacent modules. The interchangeable lighting modules can include end modules each having an end cap with pin connectors, at least one of the end modules includes electrical circuitry connected to the pin connectors for powering the modules. The lighting modules can also be center unit modules having LEDs mounted to a circuit board. The replacement lamps can be made from conceivable configurations of the lighting modules, requiring removal of only one module for repair or replacement. | 01-12-2012 |
20120008316 | CIRCUIT BOARD MOUNT FOR LED LIGHT TUBE - Disclosed herein are embodiments of LED-based lights for replacing a conventional fluorescent light bulb in a fluorescent light fixture and embodiments of a circuit board mount for an LED-based light tube having an elongate housing with at least one circuit board spanning the housing. One embodiment disclosed herein of a circuit board mount comprises an end cap configured to fit over an open end of the housing. The end cap comprises an end wall, at least one pin connector extending through the end wall and at least one fitted slot extending from the end wall configured to receive an end of the circuit board, the at least one fitted slot having an elastic member within the at least one fitted slot configured to cushion the circuit board. | 01-12-2012 |
20120081894 | INCANDESCENT LED REPLACEMENT LAMP - An LED-based lamp comprises a contact base, an LED support plate, a circuit board supported by the LED support plate, LEDs mounted to the circuit board, a heat transferring structure, a heat dissipating structure, a reflector and a bulb cover enclosing the circuit board, the LEDs, the LED support plate and the reflector. The LED support plate and the heat dissipating structure each dissipate a portion of the heat generated by LEDs. The heat transferring structure thermally couples the LED support plate to the heat dissipating structure and distributes the heat dissipation between them. The LEDs are oriented to project light in a first direction along a vertical axis of the LED-based lamp. A reflector is positioned in the first direction to diffuse light from the LEDs such that a majority portion of the light is directed in a second direction away from the first direction. | 04-05-2012 |
20120099322 | LED LIGHTING APPARATUS WITH SWIVEL CONNECTION - Disclosed is a LED lighting apparatus with one or more swivel connections. The LED lighting apparatus includes a housing with at least one end, at least one light emitting diode extending along the housing and at least one end cap. The end cap has an opening with a sidewall to cap the end of the housing and a surface opposite the opening and spanning the sidewall. At least two pin connectors extend from the surface and are connectable to a standard fluorescent or incandescent light fixture. Various configurations are described such that the housing will rotate within the end caps with application of a rotational force after connection of the pin connectors to the light fixture to adjust the light output direction of the LED lighting apparatus. | 04-26-2012 |
20120106157 | MECHANISMS FOR REDUCING RISK OF SHOCK DURING INSTALLATION OF LIGHT TUBE - Disclosed herein is an LED-based light for replacing a fluorescent bulb in a conventional fluorescent light fixture. The LED-based light includes a housing having a first end opposing a second end, a circuit board disposed within the housing and extending along a longitudinal axis of the housing, at least one LED mounted to the circuit board, at least one end cap disposed on one of the first and second ends of the housing, the end cap including a switch and at least one electrically conductive pin configured for physical and electrical connection to the light fixture; and circuitry configured to provide a current path between the at least one LED and the at least one electrically conductive pin, wherein the switch is configured to selectively disconnect the current path. | 05-03-2012 |
20120146532 | CURRENT REGULATOR CIRCUIT FOR LED LIGHT - A regulator scheme for an LED light wherein the peak input current to the regulator and the regulator duty cycle produce a feedback signal which infers the average regulator output current. Both buck-boost and flyback type output circuits are disclosed. | 06-14-2012 |
20120147598 | LED FLUORESCENT TUBE REPLACEMENT LIGHT WITH REDUCED SHOCK HAZARD - An LED-based tube light suitable for replacing a conventional 48-inch fluorescent tube light includes LEDs connected into a complete illumination circuit that runs exclusively through connectors at one end of the light. In an alternative embodiment, two LED groups are used, each group being connected exclusively to its own set of end connectors. | 06-14-2012 |
20120248991 | INTEGRATION OF LED LIGHTING WITH BUILDING CONTROLS - An LED-based light can be installed in a conventional light fixture. The LED-based light can include a sensor operable to output a first signal indicative of whether an area of one or more of the rooms is in an occupied state or a non-occupied state, and the LED-based light can also include an LED controller operable to control at least one LED in the light in response to the first signal. Additionally, the LED-based light can include a transmitter operable to output a second signal indicative of whether the area is in the occupied state or the non-occupied state to a building environment regulator. | 10-04-2012 |
20120307485 | LIGHTING INCLUDING INTEGRAL COMMUNICATION APPARATUS - A lighting and communication system for use in a standardized light fixture is provided. The lighting and communication system includes a light source and a communication apparatus. At least one electrical connector configured for physical and electrical connection to the standardized light fixture is included, and the at least one electrical connector is electrically connected to the light source and the communication apparatus. | 12-06-2012 |
20120327646 | LED-BASED LIGHT WITH SUPPORTED HEAT SINK - Disclosed herein is a method of forming a LED-based light for replacing a conventional fluorescent bulb in a fluorescent light fixture including providing a heat sink of highly thermally conductive material having opposing longitudinally extending edges, mounting a plurality of LEDs in thermally conductive relation with the heat sink and enclosing the plurality of LEDs within a light transmitting cover such that the longitudinally extending edges engage an Interior of the cover to support the heat sink within the light transmitting cover. | 12-27-2012 |
20130043789 | SCREW-IN LED BULB - An LED-based light can include a highly thermally conductive base having multiple radially outward projecting nodes. The nodes can be spaced apart in an axial and circumferential directions of the base. The base can include recessed channels between the nodes to enable airflow in multiple directions about the base. An electrical connector and at least one LED can be attached to the base, and a light transmitting bulb can be attached to the base and can cover the at least one LED. The geometry of the base can promote heat dissipation, which can allow the at least one LED to use enough power to produce an amount of luminosity that allows the LED-based light to replicate, for example, an incandescent light without overheating. | 02-21-2013 |
20130093328 | LIGHT AND LIGHT SENSOR - An LED-based light tube for use in a conventional fluorescent fixture includes a housing including a light transmitting portion, at least one electrical connector attached to the housing and configured for engagement with the conventional fluorescent fixture, at least one LED arranged to produce light in a direction toward the light transmitting portion, a sensor operable to detect a brightness level and output a signal corresponding to the detected brightness level, and a controller in electrical communication with the at least one electrical connector, operable to: compare the signal to a predetermined value corresponding to a desired brightness level and control an amount of power provided to the at least one LED in response to the signal to adjust the light produced by the at least one LED to achieve the desired brightness level. | 04-18-2013 |
20130128574 | Electric Shock Resistant L.E.D. Based Light - An LED-based light comprises: a tubular housing formed of a high-dielectric material and defined at least in part by a light transmitting portion; an elongate circuit board disposed within the housing; at least one LED mounted on the circuit board; an elongate heat sink disposed within the housing, the heat sink having an interior circuit board mounting surface opposing a radially outer surface, the circuit board mounted in thermally conductive relation to the circuit board mounting surface, substantially all of the radially outer surface of the heat sink in thermally conductive relation with the tubular housing for electrically insulated thermal transmission of heat generated by the LED from the circuit board to an ambient environment surrounding the LED-based light; and a pair of end caps disposed on opposing ends of the housing with connectors configured to physically connect the LED-based light to a conventional fluorescent light fixture. | 05-23-2013 |
20130169179 | LIGHT TUBE AND POWER SUPPLY CIRCUIT - A light tube for illumination by a power supply circuit includes a bulb portion and at least one end cap disposed on the bulb portion. A plurality of light emitting diodes is disposed inside the bulb portion for illuminating in response to electrical current to be received from the power supply circuit. The light emitting diodes are arranged in spaced-apart groupings. | 07-04-2013 |
20130200797 | LIGHT SOURCES INCORPORATING LIGHT EMITTING DIODES - Taught herein are various light sources using light emitting diodes. A light source includes a housing, a connector configured for connection to an electrical socket and coupled to an end of the housing, at least one organic light emitting diode sheet mounted inside the housing and in electrical communication with the connector, and a power supply circuit for supplying electrical current to the at least one organic light emitting diode through the connector. | 08-08-2013 |
20130200805 | LIGHT AND LIGHT SENSOR - A system of LED-based lights comprises first and second LED-based light having respective first and second electrical connectors configured for engagement with first and second conventional fluorescent fixtures, first and second LEDs configured to produce light in an area when the first and second electrical connectors are engaged with the first and second fixtures and first and second controllers electrically coupled to the first and second LEDs; and one or more sensors operable to detect a brightness level in the area and output respectively one or more signals indicative of the brightness level, wherein: the first and second controllers are configured to control an amount of power provided to the respective first and second LEDs at least partially based on a signal to adjust the light produced in the area towards a desired brightness level. | 08-08-2013 |
20130223052 | INDEPENDENT MODULES FOR LED FLUORESCENT LIGHT TUBE REPLACEMENT - Disclosed herein are embodiments of a LED fluorescent tube replacement lamp and lighting modules from which the lamp is constructed. One embodiment of a replacement lamp includes a plurality of interchangeable lighting modules that are configured to be electrically connected to adjacent modules. The interchangeable lighting modules can include end modules each having an end cap with pin connectors, at least one of the end modules includes electrical circuitry connected to the pin connectors for powering the modules. The lighting modules can also be center unit modules having LEDs mounted to a circuit board. The replacement lamps can be made from conceivable configurations of the lighting modules, requiring removal of only one module for repair or replacement. | 08-29-2013 |
20130229122 | ILLUMINATION DEVICE INCLUDING LEDS AND A SWITCHING POWER CONTROL SYSTEM - Disclosed herein is an illumination device having at least one LED and a power converter with a switching element for connection to an existing fluorescent lamp fixture including a conventional ballast. The illumination device includes a feedback circuit operable to provide a switching signal to the switching element according to a duty cycle, the feedback circuit configured to: increase the value of the duty cycle to decrease an output current signal through the at least one LED; and decrease the value of the duty cycle to increase the output current signal through the at least one LED. | 09-05-2013 |
20130230995 | ELECTRICAL CONNECTOR HEADER FOR AN LED-BASED LIGHT - An LED-based light configured for replacing a conventional fluorescent light in a fluorescent light fixture comprises: an LED circuit board including at least one LED; a power supply circuit board configured to supply power to the at least one LED; an end cap carrying at least one pin configured for connection to the fixture; a pin connector header including a first body retentively supporting at least one pin connecting lead and configured to engage the power supply circuit board such that the pin connecting lead is positioned to electrically connect the power supply circuit board and the pin; and a circuit connector header including a second body retentively supporting at least one circuit connecting lead and configured to engage the power supply circuit board such that the circuit connecting lead is positioned to electrically connect the power supply circuit board and the LED circuit board. | 09-05-2013 |
20130264951 | LED LIGHT WITH THERMOELECTRIC GENERATOR - An LED based light comprises at least one LED; and at least one thermoelectric generator having a first side and a second side, wherein the first side is thermally coupled to the at least one LED such that heat generated by the at least one LED is passively conducted to the at least one thermoelectric generator, producing a temperature differential between the first side and second side, wherein the at least one thermoelectric generator is configured to produce electrical energy from the temperature differential. | 10-10-2013 |
20130285827 | INTEGRATION OF LED LIGHTING CONTROL WITH EMERGENCY NOTIFICATION SYSTEMS - An emergency lighting system for a building includes at least one LED-based light. An emergency detector is operable to detect an emergency. The emergency detector produces an emergency signal in response to the emergency. A controller is operable to control the at least one LED-based light in response to the emergency signal. | 10-31-2013 |
20140003054 | MECHANISMS FOR REDUCING RISK OF SHOCK DURING INSTALLATION OF LIGHT TUBE | 01-02-2014 |
20140009926 | POWER SUPPLY ASSEMBLY FOR LED-BASED LIGHT TUBE - An LED-based light for replacing a fluorescent light in a light fixture comprises: an elongate housing, the housing having a first longitudinal portion with a first cross section and a second longitudinal portion adjoining the first longitudinal portion with a second cross section, wherein a shape of the first cross section is different from a shape of the second cross section, such that the housing includes at least one geometric asymmetry; at least one LED arranged in the housing; and a connector at and end of the housing configured for connection to a light fixture. | 01-09-2014 |
20140015345 | CURRENT LIMITING CIRCUIT FOR ELECTRICAL DEVICES - A current limiting circuit for use with an electrical device may include a test load and a test load switch operable for varying an electrical current flowing through the test load. A detector may be electrically connected to the test load for detecting variations in an electrical characteristic of the test load and generating a detector output signal indicative of the electrical characteristic. A detection threshold signal source may be provided for producing a detection threshold signal. A comparator may be electrically connected to the detector and the threshold signal source, the comparator operable for generating a load switch control signal based at least in part on the detector output signal and the detection threshold signal. A load switch may be electrically connected to the comparator and operable for adjusting a current flow through a main load in response to the load switch control signal. | 01-16-2014 |
20140021848 | LED BULB WITH INTERNAL HEAT DISSIPATING STRUCTURES - An LED based light for replacing an incandescent bulb comprises a base having a first end and a second end. A connector is fixed to the first end of the base and adapted to physically connect to an incandescent light fixture. A light structure extends from the second end of the base and has an inner surface defining a cavity and an opposing exterior outer surface, and at least one LED is arranged outward from the inner surface. A heat dissipating structure for the at least one LED extends into the cavity. | 01-23-2014 |
20140036492 | LED LENS - A light modifier for an LED producing light about a central axis can reduce the appearance of a bright spot created by the LED. The light modifier comprises a lens defining an indentation at its outer surface, with the indentation having an angled side wall and an outer edge joining the side wall to the outer surface. The side wall is spaced from the LED and angled relative to the central axis such that light produced by the LED and striking the side wall is at least substantially internally reflected to pass through a light transmitting portion of the outer surface directly bordering the outer edge, forming a line of light around the indentation. | 02-06-2014 |
20140055043 | INTEGRATION OF LED LIGHTING WITH BUILDING CONTROLS - An LED-based light can be installed in a conventional light fixture. The LED-based light can include a sensor operable to output a first signal indicative of whether an area of one or more of the rooms is in an occupied state or a non-occupied state, and the LED-based light can also include an LED controller operable to control at least one LED in the light in response to the first signal. Additionally, the LED-based light can include a transmitter operable to output a second signal indicative of whether the area is in the occupied state or the non-occupied state to a building environment regulator. | 02-27-2014 |
20140126189 | LIGHTING INCLUDING INTEGRAL COMMUNICATION APPARATUS - A light for use in a light fixture includes a light source adapted to produce light in an area including the light and a connector configured for connection to the fixture. The light further includes a communication apparatus configured to generate one or more signals indicative of a presence of a person in the area, and a controller that is operative to control the light source in a normal mode in response to the one or more signals. | 05-08-2014 |
20140184082 | LED LAMP FAILURE ALERTING SYSTEM - A lighting system includes at least one LED and at least one regulator in communication with the at least one LED. The at least one regulator is configured to supply a substantially constant current to the at least one LED while allowing a light output from the at least one LED to degrade over time towards a target minimum light output, and once the light output of the at least one LED is below the target minimum light output, increase current to the at least one LED to maintain the light output at the target minimum light output. | 07-03-2014 |
20140355262 | Electric Shock Resistant L.E.D. Based Light - An LED-based light comprises: a tubular housing formed of a high-dielectric material and defined at least in part by a light transmitting portion; an elongate circuit board disposed within the housing; at least one LED mounted on the circuit board; an elongate heat sink disposed within the housing, the heat sink having an interior circuit board mounting surface opposing a radially outer surface, the circuit board mounted in thermally conductive relation to the circuit board mounting surface, substantially all of the radially outer surface of the heat sink in thermally conductive relation with the tubular housing for electrically insulated thermal transmission of heat generated by the LED from the circuit board to an ambient environment surrounding the LED-based light; and a pair of end caps disposed on opposing ends of the housing with connectors configured to physically connect the LED-based light to a conventional fluorescent light fixture. | 12-04-2014 |
20140368342 | INTEGRATION OF LED LIGHTING CONTROL WITH EMERGENCY NOTIFICATION SYSTEMS - An emergency lighting system for a building includes at least one LED-based light. An emergency detector is operable to detect an emergency. The emergency detector produces an emergency signal in response to the emergency. A controller is operable to control the at least one LED-based light in response to the emergency signal. | 12-18-2014 |
20150084519 | LIGHT AND LIGHT SENSOR - A system of LED-based lights comprises first and second LED-based light having respective first and second electrical connectors configured for engagement with first and second conventional fluorescent fixtures, first and second LEDs configured to produce light in an area when the first and second electrical connectors are engaged with the first and second fixtures and first and second controllers electrically coupled to the first and second LEDs; and one or more sensors operable to detect a brightness level in the area and output respectively one or more signals indicative of the brightness level, wherein: the first and second controllers are configured to control an amount of power provided to the respective first and second LEDs at least partially based on a signal to adjust the light produced in the area towards a desired brightness level. | 03-26-2015 |