公开(公告)号：US20170140555A1

公开(公告)日：2017-05-18

申请号：US15096831

申请日：2016-04-12

Applicant: QUALCOMM Incorporated

Inventor： Reza Safaee-Rad ,  Jennifer Lee Gille ,  Milivoje Aleksic

IPC: G06T11/00 ,  G09G3/20 ,  G09G3/3208

CPC classification number: G06T11/001 ,  G01J3/505 ,  G09G3/2003 ,  G09G3/3208 ,  G09G5/02 ,  G09G5/06 ,  G09G2320/0209 ,  G09G2320/0242 ,  G09G2320/0666 ,  G09G2320/0693 ,  G09G2340/06 ,  G09G2360/145 ,  H04N1/60 ,  H04N1/6005 ,  H04N1/6008 ,  H04N9/3182 ,  H04N9/67 ,  H04N9/73

Abstract: In an example, a method of gamut mapping may include generating a first second-order or higher response-surface regression model that maps color values corresponding to the second color space to color values corresponding to the first color space. The method may include generating predicted color values for measured color values by inputting measured color values into the first second-order or higher response-surface regression model. The method may include generating, based on predicted color values and a plurality of color values, a second second-order or higher response-surface regression model that maps predicted color values output by the first second-order or higher response-surface regression model corresponding to the first color space to color values corresponding to the first color space.

公开(公告)号：US20170084250A1

公开(公告)日：2017-03-23

申请号：US14857321

申请日：2015-09-17

Applicant: APPLE INC.

Inventor： Zhang Jia ,  Amy M. Winkler ,  Christopher S. Erickson ,  Zhen Zhang ,  David W. Ritter

IPC: G09G5/06 ,  G01J3/02 ,  G01J3/50

CPC classification number: G09G5/06 ,  G01J3/0251 ,  G01J3/0297 ,  G01J3/10 ,  G01J3/465 ,  G01J3/50 ,  G01J3/505 ,  G01J3/513 ,  G01J3/524 ,  G01J2003/104 ,  G01J2003/106 ,  G09G2320/0242 ,  G09G2320/0285 ,  G09G2320/0666 ,  G09G2320/0693 ,  G09G2360/144

Abstract: An electronic device may be provided with a color sensing ambient light sensor. The color sensing ambient light sensor may measure the color of ambient light. Control circuitry in the electronic device may use information from the color sensing ambient light sensor in adjusting a display in the electronic device or taking other action. The color sensing ambient light sensor may have light detectors with different spectral responses. A test system may be used to calibrate the color sensing light sensor. The test system may have a tunable light source with light-emitting diodes that are turned on in sequence while gathering measured responses from the detectors. Numerical optimization techniques may be used to produce final versions of the spectral responses for the light detectors from the measured responses and corresponding calibration data that is stored in the electronic device.

公开(公告)号：US09599533B2

公开(公告)日：2017-03-21

申请号：US14284870

申请日：2014-05-22

Applicant: ABL IP HOLDING LLC

Inventor： Januk Aggarwal ,  Jack C. Rains, Jr. ,  David P. Ramer

IPC: G01J3/00 ,  G01M11/00 ,  G01J3/50 ,  H04N5/225 ,  G03B17/56

CPC classification number: G01M11/00 ,  G01J3/0205 ,  G01J3/0264 ,  G01J3/0272 ,  G01J3/0291 ,  G01J3/18 ,  G01J3/28 ,  G01J3/502 ,  G01J3/505 ,  G01J5/522 ,  G01J5/60 ,  G03B17/565 ,  H04N5/2254

Abstract: An example of an optical accessory configured to produce an optical image depicting spectral characteristics of light. The produced optical image is captured by an image capture sensor of a mobile device. The captured image is processed by the mobile device to produce a measured value corresponding to a lighting-related parameter.

公开(公告)号：US09557214B2

公开(公告)日：2017-01-31

申请号：US14314451

申请日：2014-06-25

Applicant: Ketra, Inc.

Inventor： Horace C. Ho ,  Jason E. Lewis ,  David J. Knapp

IPC: G01J1/32 ,  G01J3/46 ,  G01J3/50 ,  H05B37/02 ,  G01J1/02 ,  G01J3/02 ,  G01J1/42 ,  G01J1/44

CPC classification number: H05B33/0851 ,  G01J1/0252 ,  G01J1/32 ,  G01J1/42 ,  G01J3/0286 ,  G01J3/465 ,  G01J3/505 ,  G01J2001/4252 ,  G01J2001/444 ,  G01R31/44 ,  H05B33/0866 ,  H05B33/0869 ,  H05B37/02 ,  H05B37/0227

Abstract: An illumination device and method is provided herein for calibrating individual LEDs in the illumination device, so as to obtain a desired luminous flux and a desired chromaticity of the device over changes in drive current, temperature, and over time as the LEDs age. The calibration method may include subjecting the illumination device to a first ambient temperature, successively applying at least three different drive currents to a first LED to produce illumination at three or more different levels of brightness, obtaining a plurality of optical measurements from the illumination produced by the first LED at each of the at least three different drive currents, obtaining a plurality of electrical measurements from the photodetector and storing results of the obtaining steps within the illumination device to calibrate the first LED at the first ambient temperature. The plurality of optical measurements may generally include luminous flux and chromaticity, the plurality of electrical measurements may generally include induced photocurrents and forward voltages, and the calibration method steps may be repeated for each LED included within the illumination device and upon subjecting the illumination device to a second ambient temperature.

Abstract translation: 本文提供一种用于校准照明装置中的各个LED的照明装置和方法，以便随着LED寿命而获得期望的光通量和装置的驱动电流，温度和随时间的变化的期望色度。 校准方法可以包括使照明装置经受第一环境温度，连续地向第一LED施加至少三个不同的驱动电流以产生三个或更多个不同亮度级别的照明，从由以下的照明产生的照明获得多个光学测量值 在所述至少三个不同驱动电流中的每一个处的所述第一LED，从所述光电检测器获得多个电测量值，并且存储所述照明装置内的所述获得步骤的结果，以在所述第一环境温度下校准所述第一LED。 多个光学测量通常可以包括光通量和色度，多个电测量通常可以包括感应光电流和正向电压，并且可以针对包括在照明装置内的每个LED重复校准方法步骤，并且对照明装置 第二个环境温度。

公开(公告)号：US09532017B2

公开(公告)日：2016-12-27

申请号：US14094171

申请日：2013-12-02

Applicant: Panasonic Corporation

Inventor： Takaaki Gyoten

IPC: G01J1/44 ,  H04N9/31 ,  G01J1/20 ,  G03B21/20 ,  G03B33/08 ,  G01J1/42 ,  G01J3/50

CPC classification number: H04N9/3138 ,  G01J1/20 ,  G01J1/44 ,  G01J3/505 ,  G01J2001/4247 ,  G03B21/2013 ,  G03B21/204 ,  G03B21/2053 ,  G03B33/08 ,  H04N9/3114 ,  H04N9/3158 ,  H04N9/3194

Abstract: The light sensitivity controlling apparatus comprises an optical semiconductor, an amplifier element, a resistor unit, an A/D converter, and a controller. The optical semiconductor receives a plurality of colors of light emitted from a light source in a time division. The amplifier element converts optical current flowing to the optical semiconductor into voltage by receiving the plurality of colors of light. The resistor unit switches the gain for converting the optical current inputted to the amplifier element into voltage, for each of the plurality of colors of light. The A/D converter converts the voltage outputted by the amplifier element from an analog signal into a digital signal. The sensitivity controlling apparatus controls the resistor unit so that the output level corresponding to the various colors of light outputted from the A/D converter will remain substantially same level.

Abstract translation: 光敏控制装置包括光半导体，放大器元件，电阻器单元，A / D转换器和控制器。 光学半导体以时分方式接收从光源发射的多种颜色的光。 放大器元件通过接收多种颜色的光将流过光学半导体的光电流转换成电压。 对于多种颜色的光，电阻单元切换用于将输入到放大器元件的光电流转换为电压的增益。 A / D转换器将放大器元件输出的电压从模拟信号转换为数字信号。 灵敏度控制装置控制电阻器单元，使得与从A / D转换器输出的各种颜色的光对应的输出电平将保持基本相同的电平。

公开(公告)号：US20160360591A1

公开(公告)日：2016-12-08

申请号：US15240936

申请日：2016-08-18

Applicant: Xicato, Inc.

Inventor： Gerard Harbers

IPC: H05B33/10 ,  H05B33/08

CPC classification number: H05B33/10 ,  F21K9/00 ,  F21K9/64 ,  F21K9/90 ,  F21V9/30 ,  F21Y2101/00 ,  F21Y2105/10 ,  F21Y2115/10 ,  G01J3/0251 ,  G01J3/505 ,  H01L22/24 ,  H01L25/0753 ,  H01L33/00 ,  H01L33/50 ,  H01L33/504 ,  H01L33/505 ,  H01L33/507 ,  H01L33/508 ,  H01L2924/0002 ,  H01L2933/0041 ,  H05B33/0857 ,  Y10T29/49002 ,  H01L2924/00

Abstract: Multiple colors of light emitted by an assembled light emitting diode (LED) based illumination device is automatically tuned to within a predefined tolerance of multiple target color points by modifying portions of wavelength converting materials associated with each color. A first color of light emitted from the assembled LED based illumination device in response to a first current is measured and a second color of light emitted from the assembled LED based illumination device in response to a second current is measured. A material modification plan to modify wavelength converting materials is determined based at least in part on the measured colors of light and desired colors of light to be emitted. The wavelength converting materials may be selectively modified in accordance with the material modification plan so that the assembled LED based illumination device emits colors of light that are within a predetermined tolerance of target color points.

公开(公告)号：US20160334278A1

公开(公告)日：2016-11-17

申请号：US15110273

申请日：2015-01-07

Applicant: HUBBELL INCORPORATED

Inventor： David John RECTOR ,  T. Warren WEEKS

IPC: G01J3/50

CPC classification number: G01J3/505 ,  G01J3/465 ,  G01J2001/4247 ,  G01J2001/4252 ,  H01L25/00

Abstract: Systems and methods for characterizing solid state lighting devices are provided. In certain examples, systems and methods for measuring various parameters of light emitting diodes (LEDs), characterizing each LED based on the measured parameters and selecting one or more of the characterized LEDs such that the emitted light from each of the selected LEDs is mixed with the light from the other selected LEDs to create a desired overall light output are described.

Abstract translation: 提供了表征固态照明装置的系统和方法。 在某些示例中，用于测量发光二极管（LED）的各种参数的系统和方法，基于所测量的参数来表征每个LED，并且选择一个或多个所述特征化的LED，使得来自每个所选LED的发射光与 描述来自其它选择的LED以创建期望的总体光输出的光。

公开(公告)号：US09426863B2

公开(公告)日：2016-08-23

申请号：US14522342

申请日：2014-10-23

Applicant: Xicato, Inc.

Inventor： Gerard Harbers

IPC: H01J17/49 ,  F21K99/00 ,  H05B33/10 ,  F21V9/16 ,  H05B33/08 ,  H01L25/075 ,  H01L33/50 ,  G01J3/02 ,  G01J3/50 ,  H01L21/66 ,  H01L33/00 ,  F21Y101/02 ,  F21Y105/00

CPC classification number: H05B33/10 ,  F21K9/00 ,  F21K9/64 ,  F21K9/90 ,  F21V9/30 ,  F21Y2101/00 ,  F21Y2105/10 ,  F21Y2115/10 ,  G01J3/0251 ,  G01J3/505 ,  H01L22/24 ,  H01L25/0753 ,  H01L33/00 ,  H01L33/50 ,  H01L33/504 ,  H01L33/505 ,  H01L33/507 ,  H01L33/508 ,  H01L2924/0002 ,  H01L2933/0041 ,  H05B33/0857 ,  Y10T29/49002 ,  H01L2924/00

Abstract: Multiple colors of light emitted by an assembled light emitting diode (LED) based illumination device is automatically tuned to within a predefined tolerance of multiple target color points by modifying portions of wavelength converting materials associated with each color. A first color of light emitted from the assembled LED based illumination device in response to a first current is measured and a second color of light emitted from the assembled LED based illumination device in response to a second current is measured. A material modification plan to modify wavelength converting materials is determined based at least in part on the measured colors of light and desired colors of light to be emitted. The wavelength converting materials may be selectively modified in accordance with the material modification plan so that the assembled LED based illumination device emits colors of light that are within a predetermined tolerance of target color points.

Abstract translation: 通过修改与每种颜色相关联的波长转换材料的部分，由组装的基于发光二极管（LED）的照明装置发射的多种颜色的光被自动调谐到多个目标色点的预定公差内。 测量响应于第一电流从组装的基于LED的照明装置发射的光的第一颜色，并且测量响应于第二电流从组装的基于LED的照明装置发射的第二颜色的光。 至少部分地基于所测量的光的颜色和要发射的光的所需颜色来确定修改波长转换材料的材料修改计划。 波长转换材料可以根据材料改性方案选择性地修改，使得组装的基于LED的照明装置发射在目标色点的预定公差内的光的颜色。

公开(公告)号：US09329083B2

公开(公告)日：2016-05-03

申请号：US14344845

申请日：2012-09-13

Applicant: Lionel Le Cam

Inventor： Lionel Le Cam

IPC: G01J1/42 ,  G01J1/02 ,  B64F1/20 ,  G01J3/50 ,  F21W111/06

CPC classification number: G01J1/42 ,  B64F1/20 ,  F21W2111/06 ,  G01J1/02 ,  G01J1/0242 ,  G01J1/0271 ,  G01J3/505 ,  G01J2001/4247

Abstract: A mobile apparatus is provided for measuring photometric characteristics of airport marker lights. The mobile apparatus includes a measuring rod configured to be moved above the marker lights to be checked, in light beams emitted by these marker lights, and a device for measuring the distance between the measuring rod and the marker lights to be checked. The measuring rod carries at least one photometric sensor and includes a device for acquiring and processing the signals emitted by the photometric sensor or sensors during its movement, as a function of the distance measured between the measuring rod and the marker lights to be checked. The device for acquisition and processing is configured to generate a set of data representing photometric characteristics of each marker light checked.

Abstract translation: 提供了一种用于测量机场标志灯的光度特性的移动装置。 移动装置包括测量杆，其被配置为在由这些标记灯发射的光束中移动到待检查的标记光之上，以及用于测量测量杆和要检查的标记灯之间的距离的装置。 测量杆承载至少一个光度传感器，并且包括用于在测量杆和要检查的标记灯之间测量的距离的函数上获取和处理由测光传感器或传感器在其运动期间发射的信号的装置。 用于采集和处理的装置被配置为生成表示检查的每个标记灯的光度特性的一组数据。

公开(公告)号：US20160088711A1

公开(公告)日：2016-03-24

申请号：US14852069

申请日：2015-09-11

Applicant: Systech Electronics Limited

Inventor： Chun Sum NG ,  Siu On LEE

IPC: H05B37/02 ,  G01J1/42

CPC classification number: H05B37/0218 ,  G01J1/4204 ,  G01J3/0264 ,  G01J3/027 ,  G01J3/505 ,  G01J2001/4252 ,  G01J2003/282 ,  H05B33/0863 ,  H05B37/0272 ,  Y02B20/46

Abstract: The present disclosure relates to an adaptable lighting system and a method for adaptive illumination. An example adaptable lighting system comprises an image sensor configured to acquire environmental information associated with a plurality of predetermined regions; a microcontroller configured to calculate an illumination algorithm based on the acquired environmental information, and to generate an adjustment command based on the calculation; and one or more lighting units configured to receive the adjustment command, and to adjust lighting output in accordance with the received adjustment command. An example method for adaptive illumination comprises acquiring, by an image sensor, environmental information associated with a plurality of predetermined regions; calculating, by a microcontroller, an illumination algorithm based on the acquired environmental information; generating, by the microcontroller, an adjustment command based on the calculation; and adjusting lighting output of one or more lighting units in accordance with the generated adjustment command.

Abstract translation: 本公开涉及适应性照明系统和适应照明方法。 示例适应性照明系统包括被配置为获取与多个预定区域相关联的环境信息的图像传感器; 微控制器，被配置为基于所获取的环境信息计算照明算法，并且基于该计算生成调整命令; 以及被配置为接收调整命令的一个或多个照明单元，并且根据接收到的调整命令来调整照明输出。 用于自适应照明的示例性方法包括：通过图像传感器获取与多个预定区域相关联的环境信息; 通过微控制器计算基于获取的环境信息的照明算法; 由微控制器产生基于该计算的调整命令; 以及根据所生成的调整指令调整一个或多个照明单元的照明输出。