| Entries |
| Document | Title | Date |
|---|
| 20080203275 | Luminaire And Light Sensor For Said Luminaire - The luminaire accommodates a light-sensor unit ( | 08-28-2008 |
| 20080210847 | Illumination Device - An illumination device comprising an organic light-emitting diode ( | 09-04-2008 |
| 20080217509 | INCREASED COLOR DEPTH MODULATION USING FAST RESPONSE LIGHT SOURCES - Embodiments of the present invention generally relate to a display system and method of using one or more fast response light sources and one or more spatial light modulator devices to modulate light. More particularly, embodiments of the present invention relates to a display system and method of using one or more fast response light sources and one or more spatial light modulator devices to provide for improved light intensity resolution. | 09-11-2008 |
| 20080217510 | Illumination System, Light-Sensing Plate and Display Device - The illumination system has a plurality of light sources (R, G, B), a light-transmissive light-sensing plate ( | 09-11-2008 |
| 20080217511 | OPTICAL FEEDBACK CONTROL UNIT, OPTICAL COMMUNICATION SYSTEM, FEEDBACK CONTROL METHOD, AND RECORDING MEDIUM FOR RECORDING PROGRAM - The present invention is to provide an optical feedback control unit for determining an optical output by a feedback control, an optical communication system, a feedback control method, and a recording medium for recording a program. According to the present invention, even when used in the system to which a plurality of nodes are connected, the unstable system may become stable by the proper feedback control without being affected by the optical level change according to the polarized variation or the loss variation. In The optical feedback control unit according to the present invention, an optical output control portion determines an optical output by a feedback control using the result detected by a detection portion, a dead zone not performing the feedback control is set for the difference between the detected value from the detection portion and the control target value, and when the difference between the detected value and the control target value is within the dead zone, a width of the dead zone is set to be wider than that of the dead zone when the difference between the detected value and the control target value is out of the dead zone. | 09-11-2008 |
| 20080224024 | Control system for an illumination device incorporating discrete light sources - The present invention provides an illumination system enabling dynamic colour control of the illumination produced by the system. The illumination system comprises light-emitting elements for producing illumination, and at least one detecting device which collects information relating to the illumination, which is inherently non-linear. The illumination system also integrates a computing system which receives the information from the at least one detecting device and linearises this information using a multivariate function having a solution defining a hyperplane representing constant chromaticity for a given luminous intensity, and then determines a number of control parameters based on the information. The illumination system also integrates a controller for receiving the control parameters from the computing system and determining the control signals to be sent to the light-emitting elements in order to dynamically alter the characteristics of the illumination based on the collected information and the desired illumination result. | 09-18-2008 |
| 20080224025 | Step-wise intensity control of a solid state lighting system - A solid state lighting system controls overall light output level in a step-wise manner by discretely controlling the ON/OFF state of its light emitters. Solid state emitters that are ON at a given time are set and kept at a level intended to produce a desired output characteristic, e.g. at a level to produce a described color of light. The system utilizes optical processing of the generated light, for example by diffuse reflection in an optical integrating cavity, sufficient to convert the point source output(s) from the emitting elements into a uniform virtual source output. The virtual source output appears uniform regardless of how many emitters are ON or OFF, and only the perceptible intensity of the light output changes with the number of emitters that the system has ON. | 09-18-2008 |
| 20080237445 | METHOD AND APPARATUS FOR DISTANCE MEASUREMENT - The disclosed subject matter relates to a method and distance measurement apparatus for measuring a distance to an object, which can include a light source, a solid state camera, a controller and a distance data generator. The light source can be configured to emit a modulated light towards an object, and the solid state camera can convert the light reflected from the object into charges. The distance data generator can be configured to calculate the distance based on the charges, and the controller can be configured to adjust the modulated light to be more favorable under various circumstances. Thus, the method of the disclosed subject matter can accurately measure distance under various circumstances and can result in providing a distance measurement apparatus with a simple configuration and at low cost, and can be used as a sensor for distance measurement of an obstacle and the like in a vehicle, security system, robot, etc. | 10-02-2008 |
| 20080245949 | Backlight device, display apparatus including backlight device, method for driving backlight device, and method for adjusting backlight device - A direct-type backlight device for a non-self-luminous image display panel has a light-emitting area corresponding to a display area of the image display panel. The light-emitting area is arranged by combining a plurality of backlight substrates each of which is provided with (i) a color sensor for detecting an incident light intensity and (ii) red, green, and blue LEDs whose respective light intensities are controlled in accordance with a detection result obtained by the color sensor. This arrangement allows reduction of brightness unevenness entirely in the light-emitting area of the backlight device. | 10-09-2008 |
| 20080251690 | LED luminaire with stabilized luminous flux and stabilized light color - The invention relates to an LED luminaire in which LEDs in three colors are provided and each LED is assigned a photodiode for measuring the luminous intensity of the individual LEDs. In order to produce a measurement window, two LEDs in each case are switched off. | 10-16-2008 |
| 20080258040 | Direct backlight module using optical feedback - A direct-light-type backlight module uses optical feedback to control point light sources for obtaining a default luminance. Each point light source drives a section in a cyclic time domain to em it a light. A photo detector detects a brightness and the brightness is thus control led by the optical feedback from the photo detector. | 10-23-2008 |
| 20080258041 | Light measuring apparatus - A light measuring apparatus includes a light source configured to emit light to a sample, and a light guide optics system configured to guide light generated as a result of applying the emitted light to the sample, to a photodetector, wherein the light guide optics system is provided in a lightproof unit, and includes optical elements for guiding the generated light to the photodetector, a positioning part for adjusting a position of at least one of the optical elements, and a position detecting part for detecting a position of at least one of the optical elements by an optical method, and the light measuring apparatus comprises a position adjusting part which adjusts the positions of the optical elements by controlling the positioning part and position detecting part, and a light emission control unit which controls operations of starting and stopping light emission of the position detecting part. | 10-23-2008 |
| 20080272275 | Optical devices and related systems and methods - The disclosure relates to a light beam intensity non-uniformity correction device that includes an optical element having a light entrance face with an antireflective property. According to the invention the antireflective property is locally amended in order to enhance light beam intensity uniformity. The disclosure further relates to a method for amending intensity distribution of a light beam in an optical system having one or more optical elements, where the method includes: a) assembling the optical system with the one or more optical elements arranged in predetermined positions, b) measuring intensity distribution, c) calculating locally required increase or decrease in absorption and/or reflection of one of the optical elements to amend measured intensity distribution into a predetermined intensity distribution, d) removing the optical element from the optical system, e) locally amending absorption and/or reflection of the one of the optical elements according to the calculation, f) installing the optical element in the predetermined position in the optical system. | 11-06-2008 |
| 20080272276 | SELF-CALIBRATED INTEGRATION METHOD OF LIGHT INTENSITY CONTROL IN LED BACKLIGHTING - This invention is an LED lighting intensity control by subdivision of PWM intervals to resolve the wavelength and luminance shifting problems that are caused by increasing heat and junction temperatures. | 11-06-2008 |
| 20080272277 | APPARATUS AND METHOD FOR CONTROLLING BRIGHTNESS OF LIGHT SOURCE AND DISPLAYING APPARATUS - The invention provides a method and apparatus for controlling brightness of illumination systems, illumination systems and display using the same. The apparatus includes a photo-sensor and a control circuit. The photo-sensor detects a luminous output of the illumination systems and correspondingly outputs a detection signal. The control circuit gets the detection signal during the light source being turned off, and adjusts and controls the brightness according this feedback signal. The method and apparatus of the invention can offer a stable output to illumination systems and displays using the same. | 11-06-2008 |
| 20080277564 | System and Method of Controlling the Power of a Radiation Source - A system for controlling the power of a radiation source comprises a sensor FS, a feedback network FN and a radiation source power control circuit LPCC. The sensor receives a portion of a radiation beam LBP generated by a radiation source LS and provides an analogue signal AFS representative of a radiation source power. The feedback network FN is connected to the sensor FS. The radiation source power control circuit LPCC is connected to the feedback network FN and to the radiation source LS. The feedback network FN comprises a runlength compensating module RCM comprising:—a sampling module SM providing a digital signal DFS based on the analogue signal AFS,—at least one error controlling signal generator ECSG performing an amplitude compensation and providing at least one digital error controlling signal ECS to the radiation source power control circuit LPCC in order to control the power of the radiation source LS. | 11-13-2008 |
| 20080296472 | Dosage accuracy monitoring systems of implanters - An apparatus for monitoring beam currents of an implanter is provided. The apparatus includes a beam-sensing unit for sensing the beam currents; a position-determining unit for determining scan positions; and a computing unit. The computing unit is configured to perform the functions of receiving the beam currents from the beam-sensing unit; receiving the scan positions from the position-determining unit; and determining a drift status of the implanter from the beam currents, wherein the computing unit is configured to receive the beam currents and the scan position periodically between a starting time and an ending time of a scan process of the implanter. | 12-04-2008 |
| 20080296473 | VOLTAGE GENERATOR, ANALOG-TO-DIGITAL CONVERTER, AND IMAGE SENSOR SYSTEM - A ladder resistor circuit generates a plurality of different reference voltages. A plurality of switching circuits correspond to a plurality of taps of the ladder resistor circuit. Each of the plurality of switching circuits is connected at one end to a corresponding one of the taps and connected at the other end to an output node, and has a variable on-resistance value. A control circuit selects continuous n (where n is any integer equal to or greater than 2) of the plurality of switching circuits, turns the n switching circuits on, and sets the respective on-resistance values of the n switching circuits. | 12-04-2008 |
| 20080315070 | Display apparatus and brightness adjustment method thereof - A brightness adjustment method is applied to a display apparatus comprising a light source and a light sensor and includes the following steps. First, a target brightness value L | 12-25-2008 |
| 20090001250 | LIGHT GUIDE HAVING AN ELONGATE SHAPE WITH DUAL CONCAVE SHAPED END AND ELECTRONIC DEVICE USING LIGHT GUIDE (AS AMENDED) - Disclosed are a light guide ( | 01-01-2009 |
| 20090001251 | Methods and apparatus for backlight calibration - Methods and apparatuses for backlight calibration are described. The apparatus | 01-01-2009 |
| 20090001252 | Brightness Control for Dynamic Scanning Backlight - A method of controlling the luminance of a luminaire on an individual frame basis, without affecting a slow acting color loop controlling the color temperature of the luminaire, the method comprising: receiving a reference value representative of a target color; receiving a luminance signal defining the luminance of the luminaire per frame; adjusting a modulated signal driving the luminaire directly responsive to the received luminance signal, thereby controlling the luminance of the luminaire per frame; sampling the optical output of the luminaire per frame; comparing a value responsive to the sampled optical output with a value responsive to the received reference value to output a difference signal; and further adjusting the modulated signal driving the luminaire responsive to the compared value so as to reduce the difference signal. | 01-01-2009 |
| 20090001253 | Optical Sampling and Control Element - An optical sampling and control element for use with a luminaire exhibiting a cycle and a frame, the optical sampling and control element being constituted of a color sensor in optical communication with the luminaire; and a sampler connected to the outputs of the color sensor, the sampler comprising an integrator arranged to integrate the outputs of the color sensor over a predetermined period less than the frame. | 01-01-2009 |
| 20090014625 | METHOD AND SYSTEM FOR CONTROLLING A LIGHTING SYSTEM - A system is provided for automatically controlling a light level of an interior space. The system may include a light sensor, a transmitter, and a lighting system. The light sensor measures a light level of an interior space and sends the measured light level to the transmitter. The transmitter is in electrical communication with the light sensor. The transmitter is configured to receive the measured light level from the light sensor; to compare the received light level with a light level setting; to determine a value for a lighting indicator based on the comparison; to define a control signal including the determined value; and to send the defined control signal to a first receiver. The lighting system may include a light fixture and a second receiver mounted on the light fixture. The second receiver is configured to receive the control signal, to extract the determined value from the received control signal, and to adjust a light level of the light fixture based on the extracted value. | 01-15-2009 |
| 20090020684 | Illumination apparatus and optical radiation control method thereof - The present invention discloses an illumination apparatus and an optical radiation control method. The illumination apparatus includes at least one light emitting module, an optical detector, a temperature calculating module and a control module. These emitting modules are for producing a light beam and the control module is for generating a PWM signal to drive the emitting modules. The optical detector electrically connected to the control module is for detecting the optical radiation of light emitted from the light modules. The temperature calculating module is for calculating the temperature of the illumination apparatus based on the PWM signal and a predetermined PWM width. The control module can adjust the optical radiation of light emitted from the light modules based on the temperature and the detected data of the optical detector. | 01-22-2009 |
| 20090020685 | LIGHT EMITTING DEVICE AND ITS CALIBRATING AND CONTROL METHODS - A calibrating method of a light emitting device, which includes at least one light-emitting diode (LED) unit. The calibrating method includes the steps of inputting a brightness control signal to the LED unit, measuring a lighting brightness of the LED unit, and writing an initial relation of the brightness control signal and the lighting brightness into a memory unit. In addition, a light emitting device and a controlling method thereof are also disclosed. | 01-22-2009 |
| 20090039234 | LIGHT-EMISSION CONTROL CIRCUIT - A light-emission control circuit may include n light-emitting devices, where n is an integer equal to or greater than 2; a light guide plate which causes light emitted by the n light-emitting devices to reach the entirety of the back of a liquid crystal panel; a measuring unit for measuring a luminance of the entirety of the n light-emitting devices operating in the liquid crystal panel; and a control unit for comparing the measured luminance with a predetermined value and controlling the luminance of the n light-emitting devices, based on a result of comparison, wherein the n light-emitting devices are attached to a side of the light guide plate, and the measuring unit is attached to an opposite side of the light guide plate. | 02-12-2009 |
| 20090045318 | Method for reproducibly determining object characteristics - A method for reproducibly determining object characteristics is disclosed. Herein an object is imaged onto a detector by means of an imaging optics and detected thereon. A correction function k is applied to a brightness measuring result N originally detected by a detector in such a way, that a corrected brightness measuring result N′ is proportional to a brightness I impinging on the detector. | 02-19-2009 |
| 20090050785 | Photocontrol devices and methods for forming the same - A photocontrol device includes a housing assembly and a flexible circuit board assembly. The housing assembly defines an enclosure cavity. The flexible circuit board assembly includes a flexible substrate and a photocontrol circuit mounted on the flexible substrate. The circuit board assembly is disposed in the enclosure cavity in a bent position. | 02-26-2009 |
| 20090057534 | LIGHT SOURCE DEVICE - The invention discloses light source devices applied in backlight modules of image display panels. The light source device includes a current source unit generating a driving current, a plurality of light emitting units coupled in series to the current source unit, a plurality of current shunts corresponding to the light emitting units respectively and providing current bypasses for the driving current to bypass the corresponding light emitting units, a plurality of light sensing units sensing the brightness of the light emitting units, and a control unit generating a plurality of current shunt control signals for separately controlling the current shunts. Each of the current shunt control signals is generated according to the sensed brightness of the corresponding light emitting unit and is used in controlling the conduction statement of the current bypass provided by the corresponding current shunt. | 03-05-2009 |
| 20090078851 | Far Ultraviolet With High Luminance Emitting High-Purity Hexagonal Boron Nitride Monocrystalline Powder And Method Of Manufacturing The Same - While high-purity hexagonal boron nitride monocrystal (hBN) obtained by way of a high temperature/high-pressure treatment in the presence of a high-purity solvent has excellent properties in terms of far-UV luminescence characteristics, it has drawbacks including that it can be easily adversely affected by mechanical vibrations and impetus, that monocrystal shows a poor morphological retentiveness and that the luminescence characteristics fluctuate to shift the selected and set wavelength. The present invention can overcome the drawbacks of being easily affected by vibrations and showing a poor morphological retentiveness by grinding down the monocrystal obtained by a solvent/refining process into powder and applying the powder to a light emitting surface. Thus, the present invention provides crystal powder to be used for a far-UV luminescence device showing excellent luminescence characteristics that are stable and do not fluctuate. | 03-26-2009 |
| 20090078852 | CHROMINANCE COMPENSATION METHOD AND PANEL LIGHTENING METHOD IN A DISPLAY APPARATUS - An area-control based LED backlight system for a panel is divided into a plurality of independently controllable light emitting regions. A single color sensor or light sensor detects light emitting status of the regions. Reference values corresponding to the regions are set based on a white balance parameter. The reference values are compared to the light emitting status of the regions for performing color components ratio calibration, so as to compensate luminance and chrominance of light emitted from the regions and lightening the panel. Further, a single light sensor is used for detecting light emitted from LED sets of a whole-panel based LED backlight system for a panel. A reference value is compared to a detection result of the light sensor for generating a color component calibration parameter, so as to compensate luminance and chrominance of light emitted from the LED sets and lightening the panel. | 03-26-2009 |
| 20090078853 | LIGHT EMITTING DEVICE AND CONTROL METHOD THEREOF - A light emitting device includes at least one light emitting unit, a switching unit, a comparator unit, a charge storage unit and a sensing unit. The switching unit is electrically connected to the light emitting unit. The comparator unit is electrically connected to the switching unit. The charge storage unit is electrically connected to the comparator unit and stores an amount of electric charges. The sensing unit has a light sensing circuit and is electrically connected to the charge storage unit. The light sensing circuit senses a light intensity of the light emitting unit. The sensing unit adjusts the amount of the electric charges and a voltage corresponding to the amount of the electric charges according to the light intensity. The comparator unit compares the voltage with a threshold voltage. The switching unit controls the light emitting unit in accordance with the result of the comparison. | 03-26-2009 |
| 20090090842 | INTENSITY MODULATION TYPE OPTICAL SENSOR AND OPTICAL CURRENT / VOLTAGE SENSOR - An influence on a sensor output is suppressed to a minimum degree even in the case when there is a ripple in a light source, thereby improving the measurement accuracy. | 04-09-2009 |
| 20090090843 | Illumination and Color Management System - Systems and methods for illumination and color management in a system having a plurality of color sources and a plurality of color sensors, wherein there are more color sources than color sensors are described herein. An embodiment of the method includes emitting a plurality of different colors of light from at least two of the color sources, wherein the plurality of colors consist of different intensities of light emitted by the plurality of color sources. Colors of light emitted by the at least two color sources are detected using at least one of the color sensors. The color rendering index for each of the plurality of colors emitted is determined. A color of light to be emitted by the light sources is selected. The intensities of light to be emitted by the color sources is selected, based at least in part on the color rendering index, to achieve the selected color of light. | 04-09-2009 |
| 20090095881 | PHOTO REFLECTOR - A photo reflector ( | 04-16-2009 |
| 20090101794 | System and/or method for reading, measuring and/or controlling intensity of light emitted from an LED - A system and/or a method for reads, measures and/or controls intensity of light emitted from a light-emitting diode (LED). The system and/or the method have a light intensity detector adjacent to the LED for reading and/or measuring the intensity of light emitted from the LED. The system and/or the method have a control circuit that may be electrically connected to both the detector and/or the LED for measuring and/or for controlling an intensity of light emitted from the LED. A housing surrounds the light detector and/or the LED. The housing has a pathway that allows only light emitted from the LED to reach the light detector. The LED has a finish and/or a coating that eliminates and/or retards absorption of light by internal components of the LED. The finish and/or the coating eliminates and/or retards reflection of the light by the LED. | 04-23-2009 |
| 20090101795 | IMAGE-TAKING APPARATUS - The present invention provides an image-taking apparatus which includes: a first light-emitting section having a xenon tube and a main capacitor; and a second light-emitting section having an LED. When an image is to be taken with an auxiliary light emission immediately after power-on and immediately after previous image taking with a previous auxiliary light emission, recharge of the main capacitor is not completed yet. In such a case, the image-taking apparatus selects the second light-emitting section to emit auxiliary light from the LED. | 04-23-2009 |
| 20090127431 | ILLUMINATION SYSTEM CALIBRATION AND OPERATION HAVING A CALIBRATION MATRIX CALCULATION BASED ON A SHIFT IN COLOR SPACE (AS AMENDED) - A method for calibrating an illumination system is disclosed herein. The illumination system comprises at least one light emitter and at least one color sensor. The method comprises emitting a first wavelength of light from the a light emitter and measuring the color of light emitted by the light emitter using the color sensors. A second wavelength of light is emitted from the a light emitter and the color of light emitted by the light emitter is measured using the color sensors. The shift in color space based on the measurements is calculated. At least one calibration matrix based on the shift in colors space is calculated. | 05-21-2009 |
| 20090127432 | LIGHT SENSOR, DISPLAY APPARATUS INCLUDING THE SAME, AND CONTROL METHOD THEREOF - There are provided a light sensor, a display apparatus including the same, and a control method thereof. The display apparatus includes: a display panel which includes a display area through which an image is displayed and a non-display area. A light receiving transistor which is formed in the non-display area and receives outside light. A charging part which includes a first terminal is connected to a drain electrode of the light receiving part and a second terminal is connected to a direct current voltage terminal. A signal amplifying part which includes a first terminal and a second terminal which is connected to a source of reference voltage and receives a reference voltage. A charging switching part is connected between the first input terminal and the first terminal of the charging part. A controller is provided which controls the charging switching part according to a predetermined first cycle to charge or discharge the charging part. | 05-21-2009 |
| 20090127433 | Illuminating a Surgical Site - A surgical lamp includes a light source, a camera, at least one rotatable polarization filter, and a control device that controls the polarization filter according to the results of an evaluation of the image which is captured by the camera. | 05-21-2009 |
| 20090134311 | POWER SUPPLY SYSTEM FOR GREEN LASER INDICATING PEN - A power supply system for a green laser indicating pen, comprises a computer having an USB receptacle which is connected to a current source in the computer; a USB plug being connected to the USB receptacle; a USB transmission line for connecting the USB plug to a transformer; a chargeable battery connected to the transformer for receiving current from the computer so as to charge the chargeable battery; a voltage level detector connected to the chargeable battery for comparing the voltage of the voltage level detector with a reference voltage in the voltage level detector; an indicator light connected to the voltage level detector for displaying the voltage state with different colors; and a power switch being connected between the transformer and the laser source; as the power switch being actuated, the power from the transformer can be directly transferred to the laser source. | 05-28-2009 |
| 20090152441 | LIGHT SENSOR TEST UNIT, METHOD OF TESTING LIGHT SENSOR USING THE SAME AND DISPLAY APPARATUS - In a light sensor test unit, a test circuit is built in a display panel and connected to an output node of a light sensor which senses an intensity of an external light. When external light having a predetermined intensity is provided to the light sensor, the test circuit outputs a driving signal in response to a sensing signal output from the output node. A test pixel part includes pixels selected from a plurality of pixels arranged in the display panel and receives the driving signal from the test circuit to display a gray-scale corresponding to the driving signal. A brightness measurer measures a brightness corresponding to the gray-scale displayed in the test pixel part to compare the measured brightness with a predetermined brightness, thereby testing whether the light sensor built in the display panel is normally operated. | 06-18-2009 |
| 20090159779 | LIGHT CURING APPARATUS - A light curing apparatus including a carrier device and a light source with a lamp. The light curing apparatus also includes a light intensity detection device, a data processing unit and a display unit. The light intensity detection device is configured for detecting the intensity of the light source and outputting a light intensity value, the data processing unit is configured for receiving the light intensity value and forming and outputting a data signal of the changed curve of light intensity with the time change, the display unit is configured for receiving the output of the data processing unit and displaying the curve of the light intensity with the time change. The light curing apparatus can detect the actual light intensity of the light source, such that the light curing time can be changed accordingly. | 06-25-2009 |
| 20090166510 | Illumination Sensing Apparatus, Driving Method Thereof and Display Device Having the Illumination Sensing Apparatus - Provided are an illumination sensing apparatus, a driving method thereof and a display device having the illumination sensing apparatus. The illumination sensing apparatus includes an illumination sensor unit configured to generate a sensing signal according to peripheral illumination, an illumination determination unit configured to generate an illumination signal according to the sensing signal, and an illumination judgment unit configured to output a brightness select signal using the illumination signal, wherein the illumination sensor unit controls sensitivity of sensing the peripheral illumination to be varied according to the brightness select signal. Therefore, the sensitivity of an illumination sensor is automatically controlled according to the peripheral illumination, thus improving peripheral illumination sensibility. Further, an illumination signal corresponding to the peripheral illumination is provided to a light source module to thereby control the output brightness of the light source module, which makes it possible to reduce power consumption and improve image quality. | 07-02-2009 |
| 20090184233 | OPTICAL MODULE, HOST BOARD, AND METHOD OF MANUFACTURING THE HOST BOARD - The present invention provides an optical module, a host board, and a method of manufacturing the host board, where the number of man-hours required for manufacture has been reduced. Accordingly, the present invention need not have such type of optical transceiver module as the conventional host board since the host board on which the optical module has been mounted may automatically perform a control corresponding to property data of a light emitting element and a light receiving element by mounting a memory circuit on the optical module. As a result, it may be achieved to provide an optical module, a host board, and a method of manufacturing the host board, where the number of man-hours required for manufacture has been reduced. | 07-23-2009 |
| 20090194670 | INTELLIGENT SOLID STATE LIGHTING - A light fixture, using one or more solid state light emitting elements utilizes a diffusely reflect chamber to provide a virtual source of uniform output light, at an aperture or at a downstream optical processing element of the system. Systems disclosed herein also include a detector, which detects electromagnetic energy from the area intended to be illuminated by the system, of a wavelength absent from a spectrum of the combined light system output. A system controller is responsive to the signal from the detector. The controller typically may control one or more aspects of operation of the solid state light emitter(s), such as system ON-OFF state or system output intensity or color. Examples are also discussed that use the detection signal for other purposes, e.g. to capture data that may be carried on electromagnetic energy of the wavelength sensed by the detector. | 08-06-2009 |
| 20090206235 | METHOD AND DEVICE FOR ADJUSTING FLASH INTENSITY - A flash intensity adjusting device includes an image capturing module, an image-displaying module, a main-image selecting module, an image partition module, a pre-flash brightness-value acquiring module, a flash-intensity calculating module, and a flash derive device. The main-image selecting module is configured for selecting a main image area from the image-displaying area. The image partition module is configured for partitioning the main image area into at least two regions. The pre-flash brightness-value acquiring module is configured for acquiring a brightness value of each region of the main image area when the flash pre-flashing. The flash-intensity calculating module is configured for calculation a mean value according to the brightness value of each region to obtain a flash intensity value of the flash. The flash drive device is configured for driving the flash unit to flash according to the flash intensity value. | 08-20-2009 |
| 20090206236 | Illumination device and display device - An illumination device includes: a light emitting element to be a light source; a light amount detecting means for detecting the amount of light emitted by the light emitting element; a light emitting element drive means for controlling drive current supplied to the light emitting element so that the difference between the light mount detected by the light amount detecting means and a light amount target value becomes small; a junction temperature detecting means for calculating junction temperature of the light emitting element; and a setting means for setting the light amount target value in accordance with the junction temperature detected by the junction temperature detecting means. | 08-20-2009 |
| 20090230284 | LUMINOUS INTENSITY MEASURING DEVICE - A luminous intensity measuring device includes a photoresistor, a number of voltage-dividing resistors, a plurality of comparators, a micro control unit (MCU), and an indicator. The photoresistor is connected to a current-limiting resistor in series between a direct current (DC) power supply and ground. The voltage-dividing resistors are connected in series, and together are connected parallel to the photoresistor and the current-limiting resistor located between the DC power supply and ground. A non-inverting node between the photoresistor and the current-limiting resistor is connected to the non-inverting input terminals of the comparators. The inverting terminals of the comparators are respectively connected to inverting nodes between every two adjacent voltage-dividing resistors. The output terminals of the comparators are connected to the input terminals of the MCU. The indicator is connected to the output terminals of the MCU. The MCU controls the indicator to indicate luminous intensity. | 09-17-2009 |
| 20090250592 | RADIATION IMAGING APPARATUS AND RADIATION IMAGING SYSTEM - A radiation imaging apparatus including: a plurality of conversion elements being arranged in one-dimensional or two-dimensional array on a substrate, and converting an incident radiation into an electric signal; and a light source for calibration emitting a light to the conversion elements. During a light output adjustment period for driving the light source, a driving level of the light source is adjusted based on a control signal produced by comparing an output signal from a conversion element with a predetermined initial output signal. | 10-08-2009 |
| 20090261234 | LIGHT INTENSITY CONTROLLER AND OPTICAL PICKUP DEVICE - A light intensity control device of the present invention includes a light source for outputting a plurality of types of light beams having different wavelengths; a light receiving section for receiving and converting the light beams into an electric signal in accordance with the intensity of the respective light beam; and a polarization separation section provided between the light source and the light receiving section. The plurality of types of light beams include a first light beam and a second light beam having a longer wavelength than that of the first light beam. The polarization separation section guides both a first polarization direction light component of the second light beam and a second polarization direction light component, perpendicular to the first polarization direction, of the second light beam to the light receiving section. The polarization separation section guides a first polarization direction light component of the first light beam to the light receiving section, and suppresses a second polarization direction light component, perpendicular to the first polarization direction, of the first light beam from advancing to the light receiving section. | 10-22-2009 |
| 20090314927 | OPTICAL SCANNING DEVICE, IMAGE FORMING APPARATUS, AND OPTICAL SCANNING METHOD - A surface-emitting laser array includes a plurality of surface-emitting laser devices arranged in an array. An optical system includes a plurality of optical devices to guide a light beam composed of lights emitted from the surface-emitting laser array to a target surface to be scanned. A light-intensity-control-device switching unit places one of light-intensity control devices having different light transmittances at a predetermined position in an optical path of the light beam. | 12-24-2009 |
| 20100012819 | Optical Power Beaming to Electrically Powered Devices - In one embodiment, a transmitter assembly containing a light source is electrically powered. The light source receives electrical power and converts the electrical power to an optical power beam that is directed through free space to an optical-to-elect power converter for a device. The optical-to-electric power converter converts the optical power beam to electrical form, thus providing electrical power to a device. A safety subsystem assures that the emission beyond the hot zone between the transmitter and receiver do not exceed regulatory levels. | 01-21-2010 |
| 20100019125 | System and method for laser calibration - A laser calibration system and method are described for a laser unit ( | 01-28-2010 |
| 20100019126 | OPTICAL HEAD DEVICE, OPTICAL INFORMATION RECORDING/REPRODUCING DEVICE, AND OPTICAL INFORMATION RECORDING/REPRODUCING METHOD THEREOF - Between a semiconductor laser and a polarization beam splitter, a polarization direction control element, including a liquid crystal polymer layer divide into a plurality of concentric circle regions having different optical axis directions, is provided. A voltage is applied to the liquid crystal polymer layer at the time of recording. Since the polarization direction control element acts as a full wavelength plate for incident light, the light exiting the polarization beam splitter has an intensity distribution identical to that of the incident light and the rim strength in objective lens lowers. No voltage is applied to the liquid crystal polymer layer at the time of reproduction. Since the polarization direction control element operates as a half wavelength plate for rotating the polarization direction of the incident light more toward the central portion, the light exiting the polarization beam splitter has an intensity becoming lower toward the central portion as compared with the incident light, and the rim strength in an objective lens increases. | 01-28-2010 |
| 20100025567 | Apparatus for imaging single molecules - The present invention relates to apparatus for the imaging of single molecules. | 02-04-2010 |
| 20100032546 | OBSERVATION APPARATUS AND OBSERVATION METHOD - An observation apparatus includes a light radiating unit that radiates a plurality of element lights, each of which has a limited wavelength band, to an observation target; a light detecting unit that detects the plurality of element lights reflected by the observation target in a plurality of patterns by changing a weight for each of the element lights; and a processing unit that performs a procedure of separating a component of each of the element lights from a plurality of detection results of the light detecting unit based on the weight for each of the element lights of the light detecting unit. | 02-11-2010 |
| 20100032547 | METHOD AND SYSTEM OF ARRAY IMAGING - The present invention relates to a method and system of array imaging that extends or maximizes the longevity of the sensor array by minimizing the effects of photobleaching. The imaging system has a light source, a variable exposure aperture, and a variable filter system. The system extends the longevity of sensors by (1) using the variable exposure aperture to selectively expose sections of the sensor array containing representative numbers of each type of sensor, and/or (2) using the variable filter system to control the intensity of the excitation light, providing only the intensity required to induce the appropriate excitation and increasing that intensity over time as necessary to counteract the effects of photobleaching. | 02-11-2010 |
| 20100051782 | IMAGE READING DEVICE, COMPUTER READABLE MEDIUM, AND LIGHT AMOUNT ADJUSTING METHOD - An image reading device has: a light source at which plural light-emitting elements are arrayed; a detection unit that detects light amounts of illumination light which are emitted from the light-emitting elements and are reflected by a reference plate; a derivation unit; and an adjustment unit. On the basis of detected light amounts, the derivation unit derives difference amounts between a reference value and average values of light amounts per predetermined first number of adjacent light-emitting elements. On the basis of the derived difference amounts, the adjustment unit adjusts light amounts per the first number of light-emitting elements such that the average values become the reference value. | 03-04-2010 |
| 20100059659 | LIGHT CONTROL OF A FLASH UNIT - A device includes a flash unit to generate light, and an optical sensor to receive the light from the flash unit, and generate a light intensity signal based on the received light. The device also includes a controller to generate a modified error signal based on the light intensity signal. The device further includes a control circuit to receive the modified error signal from the controller, receive an output voltage from a power source associated with the device, control the output voltage based on the modified error signal, and provide the controlled output voltage to the flash unit. | 03-11-2010 |
| 20100059660 | DISPLAY DEVICE - In a liquid crystal display device ( | 03-11-2010 |
| 20100096534 | Systems and methods for adjustably detecting ultra-violet radiation - The invention disclosed provides an improved method and apparatus for light sensing to detect bulb ignition for UV curing lamps. The light sensing apparatus is configured with adjustable sensitivity, and can be configured for use with a range of light intensity levels. The light sensing apparatus can be configured for use with multiple ultra-violet lamps in a variety of spatial configurations. The light sensing apparatus comprises a phototransistor circuit configured with adjustable sensitivity. The improved apparatus further comprises a signal conditioning circuit. | 04-22-2010 |
| 20100127155 | SOLAR-POWERED WIRELESS COMMUNICATION MODULE WITH DAYLIGHT INTENSITY MEASUREMENT - The present invention relates to a solar-powered wireless communication module with daylight intensity measurement, which comprises: a solar cell module, capable of converting solar energy into electricity; a Microcontroller Unit (MCU), coupled to the solar cell module for detecting and outputting values regarding the voltage and the current of the electricity converted from the solar cell module; and a wireless communication unit, powered by the electricity from the solar cell module and coupled to the MCU for transmitting values outputted from the MCU to a control end. | 05-27-2010 |
| 20100140450 | AUTOMATIC PHOTOPOLYMERISATION DEVICE - The invention relates to a photopolymerization device ( | 06-10-2010 |
| 20100155573 | OPTICAL SENSOR - An optical sensor comprises: a light source located on one side of a transport path; a variable current drive, an optical receiver in communication with the variable current drive, and located on an opposite side of the transport path to the light source and aligned therewith to detect light output therefrom; and a memory coupled to the variable current drive. The variable current drive is suitable for energising the light source so that the light intensity from the light source increases with increasing current. The variable current drive includes (i) a drive circuit for applying a pulse of current to the light source, during which pulse the light source is energised; and (ii) a counter for increasing the amount of current applied by the drive circuit during a pulse of current. The memory may be arranged to store a value from the counter indicative of a number of media items present in the transport path. | 06-24-2010 |
| 20100155574 | PROBE INSPECTION APPARATUS - This document relates to a probe inspection apparatus for testing a flat panel display. The probe inspection apparatus comprises a base plate, a stage placed over the base plate and configured to comprise a plurality of back light modules for supplying a rear surface of a substrate with light or heat or both, the substrate being seated in the stage, a probe pin configured to electrically come into contact with circuit patterns formed in the substrate and measure electrical properties of the circuit patterns, a probe head configured to support the probe pin and move in an X or Y axis, and an upper light source unit mounted on one side of the probe head and configured to irradiate light to the circuit patterns. | 06-24-2010 |
| 20100163709 | SENSOR COMPRISING AT LEAST A VERTICAL DOUBLE JUNCTION PHOTODIODE, BEING INTEGRATED ON A SEMICONDUCTOR SUBSTRATE AND CORRESPONDING INTEGRATION PROCESS - An embodiment relates to a sensor being integrated on a semiconductor substrate and comprising at least a vertical double-junction photodiode, in turn comprising at least one first and one second p-n junction formed in said semiconductor substrate, as well as at least an anti-reflection coating formed on said photodiode. Said at least one anti-reflection coating comprises at least one first and one second different anti-reflection layer being suitable to obtain a responsivity peak in correspondence with a predetermined wavelength of an incident optical signal on said sensor. An embodiment also relates to an integration process of such a sensor, as well as to an ambient light sensor made by means of such a sensor. | 07-01-2010 |
| 20100171023 | PHOTOELECTRIC CONVERTER - To provide a photoelectric converter capable of reducing the height of the device. The photoelectric converter includes: a light emitting element or a light receiving element; an IC circuit for transmitting/receiving an electric signal to/from the light emitting element or the light receiving element; a mount substrate adapted to be mounted on one surface from the side on which the light emitting element emits light, or the side on which the light receiving element receives light; an electric connector adapted to be provided on the one surface or the other surface of the mount substrate, and to be attached and detached to and from an external connector; and a waveguide adapted to be provided on the mount substrate along the one surface or the other surface of the mount substrate, and to be optically coupled to the light emitting element or the light receiving element. | 07-08-2010 |
| 20100181463 | LIGHT CONTROL APPARATUS - A light control apparatus for controlling incident light passing through an aperture includes a substrate having the aperture, a plurality of incident light control members that are moved respectively in different planes perpendicular to an optical axis direction on the substrate, a plurality of drive members that drive the incident light control members, and separating members that separate, with a certain gap, moving spaces in which the plurality of incident light control members moves in the respective planes. The plurality of incident light control members are each moved by the drive members between an aperture position and a retracted position away from the aperture position. | 07-22-2010 |
| 20100200728 | OPTICAL MEASUREMENT ARRANGEMENT - A method and device for enhancing the power correction of optical measurements in an optical measurement arrangement, the steps including: providing a light source for producing a light beam; splitting the light beam into two beams; directing a first split light beam through an interrogation area and into an optics separation device; directing the light beams from the optics separation device and a second split light beam representing the intensity of the illumination of the main light beam of the light source into cells of a detector array; measuring and assessing the information obtained in the cells; and using this information to calculate the corrected value for the cells receiving the light beams from the optics separation device in order to adjust the power for the intensity of the light beam of the light source and/or to correct the intensity of the light beams from the interrogation area. | 08-12-2010 |
| 20100276571 | CALIBRATION METHOD FOR SOLAR SIMULATORS USIED IN SINGLE JUNCTION AND TANDEM JUNCTION SOLAR CELL TESTING APPARATUS - A method of calibrating a light source used to simulate the sun in solar cell testing apparatus. The method comprises using a control cell to measure the intensity of light from the light source at a first wavelength range as a function of output short circuit current, comparing the measured intensity to a targeted intensity value, optionally adjusting power to the light source until the measured intensity is substantially equal to the targeted intensity value, repeatedly using a calibrated monitoring module to periodically measure monitoring measured values for monitoring module output short circuit current, monitoring module output open circuit voltage and monitoring module quantum efficiency, obtaining average values for monitoring module output short circuit current, monitoring module output open circuit voltage and monitoring module quantum efficiency, comparing the measured values with the average values, and determining if differences in measured values and average values are within an acceptable limit. | 11-04-2010 |
| 20100294913 | Solid State Luminaires For General Illumination - A lighting panel includes a tile having a first side parallel to a principal plane of the lighting panel, a plurality of solid state lighting devices arranged on the first side of the tile and configured to emit light, a reflector sheet on the first side of the tile, and a brightness enhancement film on the reflector sheet. The reflector sheet may be arranged between the tile and the brightness enhancement film and the brightness enhancement film may be configured to increase the on-axis intensity of emitted light. A luminaire adapted for general illumination includes a lighting panel as described above, a current supply circuit configured to supply an on-state drive current to a string of lighting devices in response to a control signal, a photosensor arranged to receive light from one of the solid state lighting devices, and a control system configured to receive an output signal from the photosensor and to adjust the control signal responsive to the output signal of the photosensor. | 11-25-2010 |
| 20100308207 | Application independent operational controls of a suspended particle device - A scalable apparatus and a network environment dynamically changes the light transparency of a single SPD device, a small number of SPD devices or thousands of such SPD devices installed in windows in automobiles, aircraft, trains, marine vehicles, residential homes, commercial buildings and skyscrapers. A scalable apparatus and a network environment dynamically changes the light transparency of a single SPD device or thousands of such SPD devices in the presentation of a multi-media special effects display. Textual messages, graphical images and simulated motion effects are driven. Such scalable apparatus being capable of driving and using several operational parameters of SPD materials such as frequency range, AC voltage and temperature so as to provide fine control of SPD characteristics such as switching speed and power consumption. | 12-09-2010 |
| 20110001035 | System and/or method for reading, measuring and/or controlling intensity of light emitted from an LED - A system and/or a method read, measure and/or control intensity of light emitted from a light-emitting diode (LED). A light detector may be located in a position adjacent to the LED for reading and/or measuring the intensity of light emitted from the LED. The LED and the light detector may be located in a cavity which may limit exposure of the LED and the light detector to ambient light. The cavity may have an aperture for allowing light emitted from the LED to exit the chamber to illuminate an environment in which the chamber is located. The aperture may be located between the cavity and a compartment, and the LED may emit light through the aperture into the compartment. An additional detector may be located in the compartment and/or may extend from the cavity through an additional aperture into the compartment. | 01-06-2011 |
| 20110036968 | MEASURING AND COMPENSATING FOR LIGHT INTENSITY IN AN OPTICAL SCANNER - Disclosed is a device for optical scanning, comprising: a plurality of photo sensors, where the photo sensors are arranged to detect light incident on the photo sensors, emitted from a light source and reflected from an object subject to optical scanning; wherein the amount of light received at least one of the photo sensors is to a larger extent light transmitted from the light source; and to a smaller extent light reflected from the object. | 02-17-2011 |
| 20110121160 | SENSOR FOR MONITORING A MONITORED AREA - A sensor for monitoring a monitored area, having a transmitting unit which emits radiation, wherein the sensor is capable of detecting objects in the monitored area. According to the invention, the sensor comprises means, using which the instantaneous and/or average power per unit area applied to a detected object of energy incident on the object, such as electromagnetic radiation of the transmitting unit, can be determined. In addition, adaptation means are provided in order to not let the instantaneous and/or average power per unit area of energy incident on the object, such as electromagnetic radiation of the transmitting unit, exceed a predetermined value during the detection of an object in the monitored area, the sensor being configured to first measure whether objects are located in a predetermined proximal area to the transmitter unit using a comparatively low power which can create no or no noticeable hazard potential for people. | 05-26-2011 |
| 20110147566 | WAVELENGTH CONVERSION LASER LIGHT SOURCE, AND PROJECTION DISPLAY DEVICE, LIQUID CRYSTAL DISPLAY DEVICE AND LASER LIGHT SOURCE PROVIDED WITH SAME - A wavelength conversion laser light source includes: a fundamental light source for outputting fundamental light; a wavelength conversion element with a nonlinear optical effect for converting the fundamental light into harmonic light of a different wavelength; a first optical receiver for receiving light of a specific polarization direction contained in the fundamental light output from the fundamental light source and converting an amount of light thereof into an electrical signal; a second optical receiver for receiving the harmonic light output from the wavelength conversion element and converting an amount of light thereof into an electrical signal; a temperature holding unit for holding a temperature of the wavelength conversion element constant; a fundamental light control unit for performing first control of controlling an amount of light of the fundamental light output from the fundamental light source based on the electrical signal from the second optical receiver, and second control of controlling an amount of light of the fundamental light based on the electrical signal from the first optical receiver; and a temperature control unit for performing third control of controlling a holding temperature of the temperature holding unit based on the electrical signal from the second optical receiver. | 06-23-2011 |
| 20110168869 | System and/or method for reading, measuring and/or controlling intensity of light emitted from an led - A system and/or a method reads, measures and/or controls intensity of light emitted from a light-emitting diode (LED). The system and/or the method have a light intensity detector adjacent to the LED for reading and/or measuring the intensity of light emitted from the LED. The system and/or the method have a control circuit that may be electrically connected to both the detector and/or the LED for measuring and/or for controlling an intensity of light emitted from the LED. A housing surrounds the light detector and/or the LED. The housing has a pathway that allows only light emitted from the LED to reach the light detector. The LED has a finish and/or a coating that eliminates and/or retards absorption of light by internal components of the LED. The finish and/or the coating eliminates and/or retards reflection of the light by the LED. | 07-14-2011 |
| 20110180686 | ELECTRONIC APPARATUS AND CONTROL METHOD - According to one embodiment, an electronic apparatus includes a proximity sensor, a control module and an adjustment module. The proximity sensor is configured to emit light and to detect reflection of the emitted light. The control module is configured to control an operation of the electronic apparatus, based on an output signal of the proximity sensor. The adjustment module is configured to adjust an intensity of the emitted light by monitoring the output signal of the proximity sensor while varying the intensity of the emitted light, when an event indicating that a detection distance of the proximity sensor is to be adjusted has occurred. | 07-28-2011 |
| 20110180687 | INTELLIGENT SOLID STATE LIGHTING - A light fixture, using one or more solid state light emitting elements utilizes a diffusely reflect chamber to provide a virtual source of uniform output light, at an aperture or at a downstream optical processing element of the system. Systems disclosed herein also include a detector, which detects electromagnetic energy from the area intended to be illuminated by the system, of a wavelength absent from a spectrum of the combined light system output. A system controller is responsive to the signal from the detector. The controller typically may control one or more aspects of operation of the solid state light emitter(s), such as system ON-OFF state or system output intensity or color. Examples are also discussed that use the detection signal for other purposes, e.g. to capture data that may be carried on electromagnetic energy of the wavelength sensed by the detector. | 07-28-2011 |
| 20110220776 | FIBER FUSE DETECTING APPARATUS - A fiber fuse detecting apparatus provides early detection of a fiber fuse generation in an optical fiber that propagates laser light, preventing the damage from expanding. It comprises light input means arranged on a laser light incidence side of the optical fiber that inputs at least a portion of reverse direction propagation light propagating in a reverse direction to light incidenting the optical fiber, light receiving means that photo-electrically converts light input by the light input means, electric filter means that extracts from an output signal of the light receiving means a prescribed frequency band component that contains a periodic signal due to fiber fuse, detecting means that detects change of or a prescribed value in output level of the electric filter means, and warning means that emits a warning signal in response to a detection output of the detecting means. The laser light to the optical fiber is stopped or reduced by means of the warning means. | 09-15-2011 |
| 20110284721 | ORGANIC ELECTROLUMINESCENCE ILLUMINATION DEVICE - An organic electroluminescence illumination device including: an organic electroluminescence panel including: a transparent substrate; a transparent electrode formed on the transparent substrate; an organic light emitting layer formed on the transparent electrode; and a metal electrode formed on the organic light emitting layer, wherein the organic light emitting layer comprises: an illumination area that is formed as a main light emitting area of the organic electroluminescence illumination device; a reference area, which is electrically-insulated from the illumination area; and a light receiving area, which is electrically-insulated from the illumination area and the reference area; and an organic light emitting layer driving part that drives individually the illumination area and the reference area, wherein the organic light emitting layer driving part detects current flowing in the light receiving area. | 11-24-2011 |
| 20120018615 | PHOTONIC SECOND-ORDER DELTA-SIGMA MODULATOR - The present disclosure relates to devices, systems and techniques for producing asynchronous delta-sigma modulated output signals from an optical input signal. In some examples, a modulator may include a first inverted integrator for producing a first integrated optical signal based on the optical input signal. Example modulators may also include a second inverted integrator for producing a second integrated optical signal based on the first integrated optical signal. Example modulators may also include an optical quantizer for producing an optical output signal based, at least in part, on the second integrated optical signal. | 01-26-2012 |
| 20120043453 | OPEN-CIRCUIT VOLTAGE CONTROL SYSTEM - A system is disclosed that includes an open-circuit voltage measurement device for measuring an open-circuit voltage of a string of solar battery panels in a state where the string and a load are not connected; a drive control device for controlling an output voltage of the solar battery panels; and a calculation control device for outputting a signal for controlling the drive control device so that the open-circuit voltage attains a predetermined voltage equal to or more than an operable voltage of the load but not more than a breakdown voltage of the photovoltaic power system, based on the open-circuit voltage measured by the open-circuit voltage measurement device when the string and the load are in an open state. | 02-23-2012 |
| 20120074296 | OPTOELECTRONIC SENSOR - An optoelectronic sensor ( | 03-29-2012 |
| 20120091315 | Electronic operations of a suspended particle device - A scalable apparatus and a network environment dynamically changes the light transparency of a single SPD device, a small number of SPD devices or thousands of such SPD devices installed in windows in automobiles, aircraft, trains, marine vehicles, residential homes, commercial buildings and skyscrapers. A scalable apparatus and a network environment dynamically changes the light transparency of a single SPD device or thousands of such SPD devices in the presentation of a multi-media special effects display. Textual messages, graphical images and simulated motion effects are driven. Such scalable apparatus being capable of driving and using several operational parameters of SPD's such as frequency range, AC voltage and temperature so as to provide fine control of SPD characteristics such as switching speed and power consumption. | 04-19-2012 |
| 20120104225 | DETECTION OF CONFIGURATION CHANGES IN AN ILLUMINATION SYSTEM - Technology for detecting a change in a configuration position of one or more elements in an illumination system is described. A light source generates an illumination signal, and an element of the system directs a portion of the light of the signal back to a light detector. In one example, the portion of light is reflected back to the light detector. By monitoring an output signal of the light detector based on the directed light, control circuitry can detect that a position of an element of the system has changed. In one example, an off-the-shelf integrated circuit laser diode package including a monitor photodiode can be used with a reflective element. In one example, the reflective element is a tilted optical element. Changes can be detected in the configuration of one or more optical elements of the illumination system which are outside the laser diode package. | 05-03-2012 |
| 20120104226 | METHOD FOR MAXIMIZING THE CONTRAST OF AN IMAGE | 05-03-2012 |
| 20120119062 | ENERGY-SAVING 3-D SENSOR - A 3-D sensor for controlling a control process comprising a light source that includes at least one illumination source, a reception matrix for receiving a complete image of light reflected from areas from a spatial section, an evaluation device for determining the distance between the areas and the reception matrix, and a supervisory device for recognizing an object, in which the light source illuminates a partial region of the spatial section which has at least one interspace. | 05-17-2012 |
| 20120153120 | PROXIMITY SENSOR AND ASSOCIATED METHOD, COMPUTER READABLE MEDIUM AND FIRMWARE - A proximity detector may include an array of single photon avalanche diodes (SPADs) and an illumination source. Illumination from the illumination source may be reflected by a target to the array of single photon avalanche diodes. The SPADs may be operable to detect events. A number of events detected may be dependent on a level of illumination incident on the SPADs. The proximity detector may then determine a quality metric and calculate an output when the quality metric is at a predetermined level. A related method may include regulating the quality of the data on which such a proximity detector apparatus calculates its output. | 06-21-2012 |
| 20120187277 | SENSOR AND METHOD OF DETECTING THE CONDITION OF A TURF GRASS - A method of detecting the condition of a turf grass is described. According to one aspect of the invention, the method comprises steps of attaching an active sensor to a mower; traversing a section of turf grass; and processing the output of the sensor. A device for detecting the condition of turf grass is also disclosed. The device comprises an array of illuminating devices generating a pattern of illuminating light; a detecting device receiving a pattern of reflected light which is coincident with the pattern of illuminating light; a detecting device adapted to detect stray light from the may of illuminating devices; and a feedback loop controlling the array of illuminating devices. A system employing the device is also disclosed. | 07-26-2012 |
| 20120193513 | LASER SYSTEM FOR A MICROSCOPE AND METHOD FOR OPERATING A LASER SYSTEM FOR A MICROSCOPE - The invention relates to a laser system ( | 08-02-2012 |
| 20120248287 | OPTICAL AMPLIFICATION APPARATUS, METHOD FOR CONTROLLING SAME, OPTICAL RECEIVER STATION, AND OPTICAL TRANSMISSION SYSTEM - An optical amplification apparatus includes an optical amplification medium configured to receive a first light signal from an end of the optical amplification medium and a second light signal from the other end of the optical amplification medium in opposite directions, the first and second light signals being branched from a light signal, an excitation light source configured to supply excitation light to the optical amplification medium through a multiplexer, a monitor configured to monitor the first and second light signals input to the optical amplification medium, respectively and to output monitoring signals respectively, and a controller configured to control the excitation light source in accordance with the monitoring signals. | 10-04-2012 |
| 20130020462 | LED LIGHTING MODULE AND LIGHTING LAMP USING SAME - An LED lighting module formed by combining components into an integrated type to achieve efficiency in light emission-light diffusion-heat dissipating operations is provided. Also, a lighting lamp is provided in which a plurality of LED lighting modules are combined to enable wide light distribution, and heat generated from the lighting lamp can be convected through a plurality of vent holes formed in all side surfaces of the lamp to achieve improved illumination efficiency and lengthen the lifespan of the lamp to tens of thousands of hours. For this, the LED lighting module is formed by combining, into an integrated type, an LED module in which a plurality of vertical projection type and side projection type LED elements are arrayed, a light diffusion cover having blades protruded from the left and right sides thereof, and a thin heat dissipating plate, thereby obtaining a lightweight and economically advantageous lighting module. | 01-24-2013 |
| 20130056615 | OPTICAL FAULT MONITORING - Various embodiments related to monitoring for optical faults in an optical system are disclosed. For example, one disclosed embodiment provides, in an optical system comprising a light source, a light outlet, and an optical element disposed between the light source and the light outlet, a method of monitoring for optical system faults. The method includes detecting, via a light sensor directed toward an interface surface of the optical element closest to the light source, an intensity of light traveling from the interface surface of the optical element to the light sensor, and comparing an intensity of light detected to one or more threshold intensity values. The method further includes identifying an optical system fault condition based on comparing the intensity of light detected to one or more threshold values, and modifying operation of the optical system. | 03-07-2013 |
| 20130075579 | ELECTROMAGNETIC WAVE SENSING APPARATUS WITH INTEGRATION OF MULTIPLE SENSORS AND METHOD THEREOF - Disclosure is related to an electromagnetic wave sensing apparatus with integration of multiple sensors, and a method for applying the apparatus. According to one of the embodiments, the method adapted to an electronic wave sensing apparatus includes an initialized step of a host enabled to configure one or more sensors of the electronic wave sensing apparatus. The initialization for those sensors includes one or more setting items selected from resolution, gain, data rate, frequency, and driving current. A next step is to set up a control unit electrically connected with the multiple sensors, and the related setting items are such as output format, output gain, output source, output level, and output driving current. Based on the setting items, the signals will be shaped accordingly and be output. In response to the setting items, the control unit drives one or more internal devices or external devices to function the various applications. | 03-28-2013 |
| 20130140430 | Solid State Luminaires for General Illumination - A lighting panel includes a tile having a first side parallel to a principal plane of the lighting panel, a plurality of solid state lighting devices arranged on the first side of the tile and configured to emit light, a reflector sheet on the first side of the tile, and a brightness enhancement film on the reflector sheet. The reflector sheet may be arranged between the tile and the brightness enhancement film and the brightness enhancement film may be configured to increase the on-axis intensity of emitted light. A luminaire adapted for general illumination includes a lighting panel as described above, a current supply circuit configured to supply an on-state drive current to a string of lighting devices in response to a control signal, a photosensor arranged to receive light from one of the solid state lighting devices, and a control system configured to receive an output signal from the photosensor and to adjust the control signal responsive to the output signal of the photosensor. | 06-06-2013 |
| 20130153746 | OPTICAL SCANNING DEVICE, LIGHT INTENSITY ADJUSTMENT METHOD THEREOF, AND COMPUTER PROGRAM PRODUCT - An optical scanning device includes a light source; a light source driving unit that drives the light source; a detecting unit that detects light intensity emitted from the light source; a light intensity adjustment determining unit that determines whether or not it is necessary to adjust the light intensity emitted from the light source; a detected-light-intensity determining unit that determines whether or not the light intensity detected by the light intensity detecting unit is at a predetermined light intensity; and a light intensity adjusting unit that, when it is determined that the light intensity needs to be adjusted, amplifies the light intensity emitted from the light source with an amplification factor that is set according to the imaging condition to adjust a driving current of the light source driving unit and to thereby adjust the light intensity, which is determined by the detected-light-intensity determining unit, to the predetermined light intensity. | 06-20-2013 |
| 20130168532 | SYSTEM AND METHOD FOR ADJUSTING THE LIGHT OUTPUT OF AN OPTOACOUSTIC IMAGING SYSTEM - A system and method for adjusting the light output of an optoacoustic imaging system. An optoacoustic imaging system includes a light source having a light output control, a probe for delivering light to a volume, the probe being associated with one or more sensors, a light path operatively connected to the first light source, the light path providing light from the first light source to the probe. To avoid unsafe fluence levels incident upon the volume of interest in a clinical setting, the light output control may be set to an initial, relatively low value. After the light source is pulsed, the light output may be measured at or near the probe at the distal end of the light path. The measured light output can used to determine whether, and how much, to change the setting of the light output control. | 07-04-2013 |
| 20130292545 | OPTICAL PROJECTOR WITH BEAM MONITOR - Optical apparatus includes a device package, with a radiation source contained in the package and configured to emit a beam of coherent radiation. A diffractive optical element (DOE) is mounted in the package so as to receive and diffract the radiation from the radiation source into a predefined pattern comprising multiple diffraction orders. An optical detector is positioned in the package so as to receive and sense an intensity of a selected diffraction order of the DOE. | 11-07-2013 |
| 20130313406 | SOLUTION SEARCHING SYSTEM BY QUANTUM DOTS - There are provided a quantum dot, a plurality of quantum dots having a larger volume than the quantum dot, a light detection unit for detecting a light emission state of an output light from the quantum dot, and a light supply unit capable of supplying a control light to the quantum dot thereby to excite other exciters to a lower level, and controlling energy discharging of the exciters transiting to the lower level, wherein a control light to be supplied by the light supply unit is controlled per quantum dot based on the light emission state of the output light per quantum dot and previously-input search problem information. | 11-28-2013 |
| 20130320190 | LIGHT SOURCE DEVICE - A light source device including at least one light source, an optical module, a diffractive optical element, and a shielding component is provided. The at least one light source emits at least one light beam, and the light beam has a wavelength range. The optical module is disposed on a transmission path of the light beam to provide a plurality of optical surfaces. The optical surfaces respectively have a plurality of different inclination angles, so as to transmit at least a portion of the light beam having at least a predefined wavelength to a plurality of different directions. The diffractive optical element is disposed on the transmission path of the light beam, so as to diffract the light beam. The shielding component has an outlet. A portion of the diffracted light beam passes through the outlet to the outside. | 12-05-2013 |
| 20140014811 | DEVICE AND METHOD FOR REDUCING AMPLITUDE NOISE OF A LIGHT RADIATION - The invention relates to a device for reducing amplitude noise of a light radiation, comprising a first birefringent crystal, which has a first length along a direction of light propagation as well as a first optical axis; a polarization device; a light sensitive element, arranged in such a way that at least a part of a beam of light radiating through the first crystal and the polarization device when the device is in operation strikes the light sensitive element; and a control appliance which stands in operative connection with the first crystal and which is provided and arranged for using a signal generated by the light sensitive element as input variable and for applying a voltage signal as output signal to the first crystal to compensate for the amplitude noise. For the temperature control of the first crystal a temperature control appliance is provided which stands in operative connection with the control appliance and which is provided and arranged for using the voltage signal of the control appliance as input variable and for setting the temperature of the first crystal depending on the input variable of the temperature control appliance. | 01-16-2014 |
| 20140027606 | MODULE FOR PROXIMITY AND GESTURE SENSING - A module operates in a proximity detection mode and a gesture detection mode. The module includes an illumination source, radiation sensors and a controller. When in proximity detection mode, the illumination source emits radiation, the radiation sensors measure the radiation level, and the controller adjusts the measured radiation level to substantially cancel the contribution attributable to ambient radiation to determine the presence of a proximate object by. When in the gesture recognition mode, the level of radiation incident on the sensors is individually sampled, and the controller determines object movement by comparing the changes in the measured radiation levels over a plurality of the samples. Ambient radiation contribution is not removed from the sampled radiation levels during the gesture recognition mode. | 01-30-2014 |
| 20140034806 | WINDSHIELD DISPLAY WITH OBSTRUCTION DETECTION - A windshield display system and method of operating the same configured to detect an obstruction of light projected by the system. A light source emits a light beam that reflects off a scanning mirror to direct the light beam to a desired on a windshield. The system includes a light detector configured to detect emitted light generated in response to the light beam illuminating the desired location. The system is arranged so the light beam and the emitted light that is detected travel essentially the same light path between the scanning mirror and the windshield. As such, an obstruction of the light path is readily detected based only on the intensity of the emitted light detected by the light detector. | 02-06-2014 |
| 20140048680 | OPTOELECTRONIC COMPONENT AND METHOD FOR OPERATING AN OPTOELECTRONIC COMPONENT - An optoelectronic component includes a carrier on which at least one first light-emitting semiconductor chip and one first light-absorbing semiconductor chip connected antiparallel to the at least one first light-emitting semiconductor chip, at least one second light-emitting semiconductor chip and one second light-absorbing semiconductor chip connected antiparallel to the at least one second light-emitting semiconductor chip, wherein the semiconductor chips are arranged on the carrier such that light from each light-emitting semiconductor chip falls on at least one of the light-absorbing semiconductor chips not connected to the respective light-emitting semiconductor chip, and the light-absorbing semiconductor chips are formed as protection diodes. | 02-20-2014 |
| 20140070072 | OPTICAL FREQUENCY TRACKING AND STABILIZATION BASED ON EXTRA-CAVITY FREQUENCY - Embodiments of the invention provides methods and systems for synthesizing optical signals with high frequency stability. Using a set of external optical signal manipulators and control systems, embodiments of the invention enhance the resolution of any frequency reference and thereby alleviates the needs for ultra-high-Q cavities in frequency-stable optical signal synthesis. The invention consequently improves the performance of any optical signal generator by a substantial margin, while maintaining the system complexity and power dissipation at levels comparable to the original systems. | 03-13-2014 |
| 20140110561 | METHOD AND APPARATUS FOR CONTROLLING AMOUNT OF LIGHT IN VISIBLE LIGHT COMMUNICATION SYSTEM - A method and an apparatus for controlling an amount of light in a visible light communication system are provided. In the visible light communication system, a terminal measures an amount of light for a light signal received from a sensor, determines whether the measured amount of light is less than a threshold value, increases an amount of light for a light source signal to transmit to the sensor when the measured amount of light is less than the threshold value, and transmits, to the sensor, a light source signal according to the increased amount of light. | 04-24-2014 |
| 20140166850 | Electronic Device With Display and Low-Noise Ambient Light Sensor - An electronic device may be provided that has a display. The display may produce stray light when producing images for a user. The electronic device may have an ambient light sensor for measuring ambient light levels. Ambient light data may be used in adjusting display brightness. The display may be periodically disabled to prevent the stray light from interfering with the ambient light sensor. An integrating analog-to-digital converter may be used in gathering sensor data from the ambient light sensor. Control circuitry may be configured to remove background signals from ambient light sensor data. The background signals may be associated with leakage current that arises due to offset voltages in an operational amplifier in the integrating analog-to-digital converter. The operational amplifier may have an analog autozeroing capability or control circuitry may be used to subtract background data from ambient light sensor data. | 06-19-2014 |
| 20140166851 | OPTICAL INPUT APPARATUS - An optical input apparatus is provided. The optical input apparatus includes a body having an image sensor; a plurality of light sources provided in the body to emit light; and a controller configured to control emission of light by the plurality of light sources as a function of a pattern received by the image sensor, wherein the plurality of light sources selectively emit light according to a location of a local saturation of light received by the image sensor. | 06-19-2014 |
| 20140166852 | OPTICALLY-POWERED SENSOR SYSTEMS PRINCIPALLY FOR DEPLOYMENT ON-BOARD AIRCRAFT - Described are optical sensing systems. The systems may perform reliably in explosive environments and provide eye protection should breakage of an optical fiber be detected. Sensors of the systems additionally may be self-managing, acquiring and transmitting sensed data as available electrical power permits. | 06-19-2014 |
| 20140217261 | Ambient lighting control system - In one embodiment there is provided an ambient lighting control system | 08-07-2014 |
| 20140284450 | PHOTONIC LOCK BASED HIGH BANDWIDTH PHOTODETECTOR - The technique introduced herein decouples the traditional relationship between bandwidth and responsivity, thereby providing a more flexible and wider photodetector design space. In certain embodiments of the technique introduced here, a photodetector device includes a first mirror, a second mirror, and a light absorption region positioned between the first and second reflective mirrors. For example, the first mirror can be a partial mirror, and the second mirror can be a high-reflectivity mirror. The light absorption region is positioned to absorb incident light that is passed through the first mirror and reflected between the first and second mirrors. The first mirror can be configured to exhibit a reflectivity that causes an amount of light energy that escapes from the first mirror, after the light being reflected back by the second mirror, to be zero or near zero. | 09-25-2014 |
| 20140332662 | ILLUMINATION SETTING METHOD, APPARATUS AND COMPUTER-READABLE MEDIUM FOR A BRIGHTNESS TOOL OF AN IMAGE MEASURING APPARATUS - A current value corresponding to a relationship between an illumination intensity instruction value and illumination intensity is calculated based on a previously obtained relationship between a current flowing through a light emitting device and the illumination intensity. A calibration table including the illumination intensity instruction value, the current value, and the illumination intensity is created. A required illumination intensity is calculated during measurement. An illumination intensity instruction value corresponding to the required illumination intensity is calculated. The illumination intensity instruction value is set using the calibration table. | 11-13-2014 |
| 20150028186 | BACKLIGHT FOR TOUCHLESS GESTURE DETECTION - A device and method to detect a gesture performed by an object in touch-less communication with the device are described. The device includes two or more ambient light sensors arranged at respective first surface locations of the device, each of the two or more ambient light sensors sensing light intensity at the respective first surface location. The device also includes one or more processors to operate one or more light sources at respective second surface locations of the device based on the light intensity sensed by the two or more ambient light sensors, and detect the gesture based on the light intensity sensed by each of the two or more ambient light sensors. | 01-29-2015 |
| 20150048238 | REPEATER, EXCITATION LIGHT SUPPLY DEVICE USED FOR THE SAME, AND EXCITATION LIGHT SUPPLY METHOD - Even when some light emitting elements among the plurality of light emitting elements fail, a repeater, can be continuously operated. Means for solving the problems A light source unit | 02-19-2015 |
| 20150136945 | Light sources with highly stable output intensity - A light source includes a semiconductor light emitter having an electrical drive input and operatively configured to emit a light beam; a first weakly polarizing beam splitter positioned to capture the light beam, reflecting one portion, and transmitting another portion with an output intensity P. The light source includes a second polarizing beam splitter positioned to capture the reflected portion of the light beam and split it into first and second detector light beams of orthogonal polarizations. The light source further includes first and second detectors capturing those detector light beams, and is configured to deliver corresponding first and second output signals from corresponding detector outputs. The light source includes an electronic circuit coupled to those electrical outputs and to the electrical drive input of the light emitter. | 05-21-2015 |
| 20150311755 | Wireless Remote Energy Supply for Unmanned Aerial Vehicles - A transmitter unit for wireless transmission of power by way of a bundled laser beam is described. The transmitter unit has a laser fiber bundle having a plurality of laser fibers, wherein each laser fiber is designed to emit a laser beam; positioning optics for adjusting an emission direction of the bundled laser beam; a field lens and a primary lens. The plurality of laser fibers is designed to emit a laser beam from each, passing through the positioning optics, the collimator lens and the primary lens, in this order, so that the laser beam emitted by the transmitter unit is emitted in bundled form. A particularly efficient device with an unlimited flight time and a large radius of use is achieved by the hybrid drive with solar power and laser power from the ground and temporary storage of the power in batteries. | 10-29-2015 |
| 20150318411 | PHOTONIC LOCK BASED HIGH BANDWIDTH PHOTODETECTOR - The technique introduced herein decouples the traditional relationship between bandwidth and responsivity, thereby providing a more flexible and wider photodetector design space. In certain embodiments of the technique introduced here, a photodetector device includes a first mirror, a second mirror, and a light absorption region positioned between the first and second reflective mirrors. For example, the first mirror can be a partial mirror, and the second mirror can be a high-reflectivity mirror. The light absorption region is positioned to absorb incident light that is passed through the first mirror and reflected between the first and second mirrors. The first mirror can be configured to exhibit a reflectivity that causes an amount of light energy that escapes from the first mirror, after the light being reflected back by the second mirror, to be zero or near zero. | 11-05-2015 |
| 20150330833 | MEASURING AND ADJUSTING SYSTEM AND METHOD ON UNIFORMITY OF LIGHT INTENSITY OF LIGHT SOURCE - A measuring and adjusting system and method on uniformity of light intensity of a light source. The measuring and adjusting system on uniformity of light intensity of a light source includes: a light intensity measuring plate; a light source, irradiating light to the light intensity measuring plate; an image acquisition module, acquiring color difference variation image on the light intensity measuring plate; a microprocessor, connected with the image acquisition module and connected with the light source through a control module, wherein the microprocessor compares the color difference variation image with colorimetric criterion internally stored, and obtains the light intensity distribution on the whole surface of the light intensity measuring plate, so as to judge the uniformity situation, and performs adjustment on the light intensity of the light source. | 11-19-2015 |
| 20150330834 | OPTICAL DEVICE WITH SENSOR AND METHOD OF MAKING AND USING SAME - Optical devices ( | 11-19-2015 |
| 20160033335 | OPTICAL TEMPERATURE SENSOR AND METHOD OF CONTROLLING SAME - An optical temperature sensor includes an light-emitting-side measurement unit to measure a first light intensity of a measuring beam and a second light intensity of a reference beam, and a light-receiving-side measurement unit to measure a third light intensity of a first reflected beam of the measuring beam and a fourth light intensity of a second reflected beam of the reference beam. The optical temperature sensor further includes a control unit to adjust at least one of a first control target value of the first light intensity and a second control target value of the second light intensity based on at least one of the third light intensity and the fourth light intensity. The control unit controls at least one of the first light intensity and the second light intensity based on the adjusted at least one of the first and second control target values. | 02-04-2016 |
| 20160061636 | Dynamic Range Control for Optical Encoders - Embodiments of the present disclosure provide a method and system for dynamically controlling a current that is applied to a light source of an optical encoder. | 03-03-2016 |
| 20160099535 | LASER ARRAY SIDELOBE SUPPRESSION - A laser apparatus comprising an aperture module array including two or more aperture modules, each aperture module of the array being optically couple-able to a source of coherent electromagnetic radiation and configured to emit a beam of radiation received from the source. The apparatus emits a composite beam comprising beams emitted by the respective aperture modules and modulates at least one of the beams in power and phase relative to at least one other of the beams such that a desired non-uniform composite beam profile is provided. | 04-07-2016 |
| 20160116336 | OPTICAL MODULE, ELECTRONIC DEVICE, AND METHOD FOR DRIVING OPTICAL MODULE - Provided is an optical module including a wavelength-selective interference filter capable of selecting light of a predetermined wavelength from incident light and changing the wavelength of emitted light, a rolling shutter capturing element in which a light receiving process including a light exposing period for accumulating charges as well as a light blocking period for outputting a detection signal corresponding to the charges accumulated during the light exposing period is sequentially performed in a delayed manner per pixel row configured of a plurality of pixels, and a filter drive unit controlling a wavelength changing drive of the wavelength-selective interference filter. | 04-28-2016 |
| 20160139434 | USING GOOGLE GLASS TO PROJECT A RED OVERLAY THAT ENHANCES NIGHT VISION - There is provided a method for improving a night vision by operating a pair of eyeglasses comprising: a sensor that detects an intensity of a light near a user; a comparator device that compares the detected light intensity near the user against a dimness threshold; and an onboard projector in the pair of eyeglasses projecting a red light simultaneously into each eye of the user if the detected light intensity near the user becomes lower than the threshold. | 05-19-2016 |
| 20160178794 | LIGHT CURTAIN SENSITIVITY OPTIMIZATION | 06-23-2016 |
| 20160197578 | METHOD AND DEVICE FOR REGULATING THE SUPPLY OF A PHOTOVOLTAIC CONVERTER | 07-07-2016 |
| 20160202463 | WIDE-FIELD MICROSCOPE ILLUMINATION SYSTEM AND WIDE-FIELD ILLUMINATION METHOD | 07-14-2016 |
