公开(公告)号：US07835057B2

公开(公告)日：2010-11-16

申请号：US12071682

申请日：2008-02-25

Applicant: Roy Kayser ,  Yu Song ,  Mitchell Wade MacDonald

Inventor： Roy Kayser ,  Yu Song ,  Mitchell Wade MacDonald

IPC: G02F1/03

CPC classification number: G01J1/02 ,  A61N5/062 ,  G01J1/0228 ,  G01J1/0271 ,  G01J1/08 ,  G01J1/32 ,  G01J1/42 ,  G01J2001/0481 ,  G01J2001/4252 ,  H05B33/086 ,  H05B33/0869

Abstract: In a method of calibrating a light delivery device (10) having a solid state light source (12), for example comprising LEDs of an LED array, and an intensity control unit (16) comprising LED array driver and a dimmer module for generating a control signal for controlling at least the intensity of the light source, the light source is temporarily connected by a light guide (24; 24, 26) to a radiometer (38) for detecting irradiance of the delivered light. The light delivery device has a memory (30) for storing control signal parameters and associated radiance levels. The light delivery device is calibrated by adjusting the control signal parameters, e.g. a PWM duty cycle of a control signal to each of a series of predetermined settings, obtaining from the radiometer a corresponding series of delivered light irradiance levels measured thereby, storing the irradiance levels and associated control signal parameters in memory, and applying a best fit algorithm to the irradiance measurements and control signal parameters. Thereafter, a desired irradiate level can be set by selecting the best fit control signal parameters, such as duty cycle of a PWM control or other parameters. Output intensity levels may be measured at the same time as the irradiance levels and used to compensate for light source output level changes when setting a desired irradiance level.

Abstract translation: 在校准具有固态光源（12）的光输送装置（10）的方法中，例如包括LED阵列的LED，以及包括LED阵列驱动器和调光器模块的强度控制单元（16），用于产生 控制信号，用于至少控制光源的强度，光源通过光导（24; 24,26）临时连接到辐射计（38），用于检测所传送的光的辐照度。 光输送装置具有用于存储控制信号参数和相关辐射水平的存储器（30）。 光输送装置通过调节控制信号参数来校准。 将控制信号的PWM占空比分配给一系列预定设置中的每一个，从辐射计获得由此测量的相应的一系列递送的光照度水平，将辐照度和相关联的控制信号参数存储在存储器中，以及应用最佳拟合算法 到辐照度测量和控制信号参数。 此后，可以通过选择最佳拟合控制信号参数（例如PWM控制的占空比或其他参数）来设置期望的照射水平。 输出强度水平可以与辐照度水平同时测量，并用于在设置期望的辐照度水平时补偿光源输出水平变化。

公开(公告)号：US20100052542A1

公开(公告)日：2010-03-04

申请号：US12202662

申请日：2008-09-02

Applicant: Dennis Siemiet ,  John Ivey

Inventor： Dennis Siemiet ,  John Ivey

IPC: H01J7/42 ,  G01J1/32 ,  G01K13/00

CPC classification number: H05B33/089 ,  F21K9/232 ,  F21K9/278 ,  F21V23/0457 ,  F21Y2115/10 ,  G01J1/32 ,  G01J2001/4252 ,  H05B33/0803 ,  H05B33/0845 ,  H05B33/0848 ,  H05B33/0851 ,  H05B33/0857 ,  H05B33/0884 ,  H05B33/0893

Abstract: Disclosed herein are embodiments of failure alerting systems for LED lamps and LED lamps having the same. An illustrative failure alerting system comprises a photodetector configured to detect an actual light output from the at least one LED, a regulator configured to receive a signal from the photodetector when the actual light output is below a target light output and to increase a current to the at least one LED to maintain the target light output, and a low light output indicator configured to receive a signal from the photodetector when the actual light output remains below the target light output and to produce a low light output signal. A thermal sensor can also be included and configured to sense an operating temperature of the LED and to control the regulator to increase the current and the target light output to ensure the operating temperature does not exceed the target temperature.

Abstract translation: 这里公开了用于LED灯的失效报警系统和具有该故障报警系统的LED灯具的实施例。 说明性的故障警报系统包括被配置为检测来自至少一个LED的实际光输出的光电检测器，被配置为当实际光输出低于目标光输出时从光电检测器接收信号并将电流增加到 至少一个LED以保持目标光输出，以及低光输出指示器，其被配置为当实际光输出保持在目标光输出以下并且产生低光输出信号时，从光电检测器接收信号。 热传感器还可以包括并配置为感测LED的工作温度，并且控制调节器增加电流和目标光输出，以确保工作温度不超过目标温度。

公开(公告)号：US07649622B1

公开(公告)日：2010-01-19

申请号：US11824216

申请日：2007-06-30

Applicant: Ke-Cai Zeng ,  Steven Cummins ,  Edward Huber ,  Vincent Uy ,  Steven Sanders ,  Patrick Zicolello ,  Brett A. Spurlock

Inventor： Ke-Cai Zeng ,  Steven Cummins ,  Edward Huber ,  Vincent Uy ,  Steven Sanders ,  Patrick Zicolello ,  Brett A. Spurlock

IPC: G01J1/10 ,  G01J1/12

CPC classification number: G01J1/08 ,  G01J1/16 ,  G01J2001/0481 ,  G01J2001/1673 ,  G01J2001/4252

Abstract: A test system and method are provided for testing in parallel radiant output of multiple light emitting devices. Generally, the method involves: (i) providing a system having a master, calibrated power meter (CPM), a source transfer standard (STS), and multiple secondary, test site power meters (TSPMs); (ii) determining a relationship between electrical power supplied to the STS and a radiant output therefrom as measured by the CPM; (iii) calibrating the TSPMs using the STS and the relationship between the power supplied to the STS and the radiant output therefrom as determined by the CPM; and (iv) positioning the devices undergoing test on a fixture of the test system and positioning the fixture relative to the TSPMs to test radiant outputs of the devices. Preferably, the TSPMs are calibrated by exposing each to the STS at a known power, determining a difference between the radiant output measured by the CPM and TSPM, using this difference as an offset that is added to the a signal from the TSPM to provide a corrected radiant output for the device under test. Other embodiments are also disclosed.

Abstract translation: 提供了一种用于测试多个发光器件的并行辐射输出的测试系统和方法。 通常，该方法包括：（i）提供具有主，校准功率计（CPM），源传输标准（STS）和多个次级测试站功率计（TSPM）的系统; （ii）确定由CPM测量的提供给STS的电力与其辐射输出之间的关系; （iii）使用STS校准TSPM，以及由CPM确定的提供给STS的功率与辐射输出之间的关系; 以及（iv）将经过测试的设备定位在测试系统的固定装置上并相对于TSPM定位固定装置以测试装置的辐射输出。 优选地，TSPM通过以已知功率将每个接收到STS进行校准，确定由CPM和TSPM测量的辐射输出之间的差异，使用该差作为相加于来自TSPM的信号以提供 被测器件的校正辐射输出。 还公开了其他实施例。

公开(公告)号：US20090200456A1

公开(公告)日：2009-08-13

申请号：US12302904

申请日：2007-06-13

Applicant: Eduard Johannes Meijer ,  Rifat Ata Mustafa Hikmet

Inventor： Eduard Johannes Meijer ,  Rifat Ata Mustafa Hikmet

IPC: G01J3/51

CPC classification number: G01J1/04 ,  G01J1/0411 ,  G01J1/0414 ,  G01J1/32 ,  G01J2001/4252 ,  H05B33/0803 ,  H05B33/0869 ,  Y02B20/341

Abstract: The invention relates to an apparatus for measuring light and a luminaire comprising the apparatus. The apparatus measures light from a first light emitting device located in a first position and comprises a light transmissive device having at least three surfaces: a first surface, a second surface and a third surface; and a photo sensor. The first surface is arranged for incoming light from the first position, the second surface is arranged for reflecting incident light within the light transmissive device and the third surface is arranged such that outgoing light incides onto the photo sensor.

Abstract translation: 本发明涉及一种用于测量光的装置和包括该装置的照明装置。 该装置测量来自位于第一位置的第一发光装置的光，并且包括具有至少三个表面的透光装置：第一表面，第二表面和第三表面; 和光传感器。 第一表面布置成用于来自第一位置的入射光，第二表面布置成用于反射光透射装置内的入射光，并且第三表面布置成使得出射光入射到光传感器上。

公开(公告)号：US20090066938A1

公开(公告)日：2009-03-12

申请号：US12191131

申请日：2008-08-13

Applicant: Muqing Liu ,  Xiaoli Zhou ,  Haiping Shen

Inventor： Muqing Liu ,  Xiaoli Zhou ,  Haiping Shen

IPC: G01J1/42

CPC classification number: G01J1/04 ,  G01J1/0422 ,  G01J2001/4252

Abstract: The present invention relates to the technical field of measuring light source, specifically, to the method for measuring the luminous flux of LED. In the present invention, a reflecting cup is used as a collector of the luminous flux of LED. The collector has two sectional openings in the direction perpendicular to the symmetric axis thereof, which are positioned in the front and in the rear respectively, one of them positioned at the bottom end of the collector and having a smaller radius is used to input the light emitted by LED to be measured, the other positioned in the front end of the collector and having a larger radius is used to output the light to the detector placed in this position. Specifically, LED is fixed at the bottom end of the collector with a fixture, the light emitted by LED is directed toward the large opening of the collector, and the photometer is fixed closely at the large opening of the collector to receive light signals. LED is driven with a constant current power supply, and the total luminous flux emitted by LED is concentrated by the collector, collected and measured by the detector, then corrected by using a calibrating coefficient, in order to achieve the numerical readings of the value of the total luminous flux. The method of the present invention is simple and has a high measuring accuracy.

Abstract translation: 本发明涉及测量光源的技术领域，具体涉及用于测量LED光通量的方法。 在本发明中，使用反射杯作为LED的光束的集电体。 集电器在垂直于其对称轴线的方向上具有两个分段开口，它们分别位于前部和后部，其中一个位于集电器的底端并且具有较小半径用于输入光 由待测量的LED发射，另一个位于集电器的前端并且具有较大的半径用于将光输出到放置在该位置的检测器。 具体地说，用固定器将LED固定在集电器的底端，由LED发射的光指向集电极的大开口，并将光度计紧密地固定在集电极的大开口处以接收光信号。 LED由恒流电源驱动，LED发出的总光通量由集电极集中，由检测器收集和测量，然后通过使用校准系数进行校正，以实现数值读数 总光通量。 本发明的方法简单，测量精度高。

公开(公告)号：US20060192125A1

公开(公告)日：2006-08-31

申请号：US11069315

申请日：2005-02-28

Applicant: Sundar Yoganandan ,  Fakhrul Mohd. Afif ,  Klan Lee ,  Slew Pang ,  Kheng Tan ,  Yew Kuan ,  Su Oon ,  Wen Ou ,  Norfidathul Abdul Karim ,  Thye Mok

Inventor： Sundar Yoganandan ,  Fakhrul Mohd. Afif ,  Klan Lee ,  Slew Pang ,  Kheng Tan ,  Yew Kuan ,  Su Oon ,  Wen Ou ,  Norfidathul Abdul Karim ,  Thye Mok

IPC: G01J1/42

CPC classification number: H05B33/0869 ,  F21K9/00 ,  G01J3/10 ,  G01J2001/4252 ,  H01L2224/48091 ,  H01L2224/73265 ,  H01L2924/15156 ,  H05B33/0821 ,  H01L2924/00014

Abstract: A light source is disclosed. The light source has a light-emitting chip that includes an LED that generates light in an active region thereof. The LED emits a light signal in a forward direction, and infrared radiation generated in the active region is emitted in a side direction in the form of a first infrared signal. The first light signal is determined by a first drive signal coupled to the LED. The light source also includes an infrared detector positioned to collect a portion of the infrared signal. The infrared detector generates a heat signal indicative of the amount of infrared radiation detected. A controller generates the drive signal so as to maintain the heat signal at a first target value. In light sources having LEDs that emit in different spectral ranges, the infrared detectors can all detect heat in the same spectral range.

Abstract translation: 公开了一种光源。 光源具有发光芯片，其包括在其有源区域中产生光的LED。 LED沿正向发射光信号，并且在有源区域中产生的红外辐射以第一红外信号的形式在侧向发射。 第一光信号由耦合到LED的第一驱动信号确定。 光源还包括定位成收集红外信号的一部分的红外检测器。 红外检测器产生指示所检测到的红外辐射量的热信号。 控制器产生驱动信号，以将热信号保持在第一目标值。 在具有在不同光谱范围内发射的LED的光源中，红外检测器都可以在相同光谱范围内检测热量。

公开(公告)号：US07056000B2

公开(公告)日：2006-06-06

申请号：US10258658

申请日：2001-04-27

Applicant: Conleth Denis Hussey ,  Kenneth Peter Oakley ,  Michael Crowley ,  Eamonn O'Toole ,  Timothy Davern

Inventor： Conleth Denis Hussey ,  Kenneth Peter Oakley ,  Michael Crowley ,  Eamonn O'Toole ,  Timothy Davern

IPC: H01L27/00 ,  F21V7/04

CPC classification number: G01R31/2635 ,  G01J1/0425 ,  G01J1/42 ,  G01J3/50 ,  G01J2001/4252 ,  H05K13/08

Abstract: A text fixture (1) comprises apparatus (4) for verifying the color and brightness of light emitted from LEDs (5) of a printed circuit board (3). A base (6) of the fixture (1) supports the printed circuit board (3) during testing. A mounting panel (14) locates ends (15) of a plurality of optical fibers (10) adjacent the LEDs (5) on the printed circuit board (3), and ends (21) of ht optical fibers (10) are terminated in a terminating panel (20) adjacent an image sensing panel (11). The image sensing panel (11) comprises an array of individually addressable light and color sensitive pixels (25) onto which light from the optical fibers (10) is incident. An analysing circuit (12) scans the pixels (25) for determining the brightness values and the tristimulus values of the incident light, and a control circuit (9) compares the tristimulus values and brightness values with reference tristimulus and brightness values for verifying the color and brightness of the light emitted by the respective LEDs (5).

Abstract translation: 文本夹具（1）包括用于验证从印刷电路板（3）的LED（5）发射的光的颜色和亮度的装置（4）。 夹具（1）的基座（6）在测试期间支撑印刷电路板（3）。 安装板（14）将邻近LED（5）的多个光纤（10）的端部（15）定位在印刷电路板（3）上，并且将ht光纤（10）的端部（21）终止于 邻近图像感测面板（11）的端接面板（20）。 图像感测面板（11）包括单独可寻址的光和颜色敏感像素（25）的阵列，来自光纤（10）的光入射到该阵列上。 分析电路（12）扫描用于确定入射光的亮度值和三刺激值的像素（25），并且控制电路（9）将三色刺激值和亮度值与参考三色刺激和亮度值进行比较，以验证颜色 和由各个LED（5）发射的光的亮度。

公开(公告)号：US07023554B2

公开(公告)日：2006-04-04

申请号：US10713439

申请日：2003-11-14

Applicant: Kevin Schmitt

Inventor： Kevin Schmitt

IPC: G01N21/25

CPC classification number: G01J1/42 ,  G01J1/0488 ,  G01J3/513 ,  G01J2001/4252

Abstract: A method and apparatus for determining a color and brightness of an LED includes a sensor having a plurality of filters arranged in a matrix and an output probe connected to the sensor, the output probe providing a color output and a brightness output in a single signal. The sensor may further include an input probe connected to the sensor providing power and a ground probe connected to the sensor providing a grounded connection to the sensor. The plurality of filters in the sensor are preferably configured in a matrix array of color receptors having different colors.

Abstract translation: 用于确定LED的颜色和亮度的方法和装置包括具有布置在矩阵中的多个滤光器的传感器和连接到传感器的输出探头，输出探头在单个信号中提供颜色输出和亮度输出。 传感器还可以包括连接到传感器的输入探针，提供电力，以及连接到传感器的接地探头，提供与传感器的接地连接。 传感器中的多个滤光器优选地配置成具有不同颜色的彩色受体的矩阵阵列。

公开(公告)号：US06486945B1

公开(公告)日：2002-11-26

申请号：US09515317

申请日：2000-02-29

Applicant: Thomas Haerle ,  Guenter Reisacher

Inventor： Thomas Haerle ,  Guenter Reisacher

IPC: G01J142

CPC classification number: G01J1/42 ,  G01J1/02 ,  G01J1/0228 ,  G01J2001/4252

Abstract: An optical monitoring unit includes a transmitting unit having plural light emitting diodes that are connected together two at a time in respective diode pairs. Each diode of each diode pair is respectively selectively connectable to a current source so as to operate as an active transmitting diode, or to a load resistor across which a voltage may be measured so as to operate as a monitoring diode. When any selected single diode is operated as the transmitting diode, its light output is measured and evaluated by operating the other diode of the pair as the monitoring diode, which receives optical crosstalk from the light output of the transmitting diode and correspondingly generates a photoelectric current through the load resistor.

Abstract translation: 光学监视单元包括具有多个发光二极管的发送单元，每个发光二极管一次在相应的二极管对中连接在一起。 每个二极管对的每个二极管分别可选择地连接到电流源，以便作为有源发射二极管工作，或者耦合到可以测量电压的负载电阻器，以便作为监控二极管工作。 当任何所选择的单个二极管作为发射二极管工作时，其光输出通过操作该对的另一个二极管作为监控二极管来测量和评估，监控二极管从发射二极管的光输出接收光学串扰，并相应地产生光电流 通过负载电阻。

公开(公告)号：US20020171373A1

公开(公告)日：2002-11-21

申请号：US09820517

申请日：2001-03-29

Applicant: Koninklijke Philips Electronics N.V.

Inventor： Subramanian Muthu

IPC: H05B037/02

CPC classification number: G01J3/51 ,  G01J3/513 ,  G01J2001/4252 ,  G09G3/3406 ,  H05B33/0863 ,  H05B33/0869 ,  Y10S362/80

Abstract: A method and a system for controlling a RBG based LED luminary which tracks the tristimulus values of both feedback and reference whereby the forward currents driving the LED luminary are adjusted in accordance with the errors between the feed tristimulus values and the reference tristimulus values until the errors are zero.

Abstract translation: 一种用于控制基于RBG的LED照明器的方法和系统，其跟踪反馈和参考的三刺激值，由此根据馈入三刺激值与参考三刺激值之间的误差来调节驱动LED发光体的正向电流，直到错误 是零。