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    LED illumination system having an intensity monitoring system
    1.
    发明申请
    LED illumination system having an intensity monitoring system 有权
    LED照明系统具有强度监控系统

    公开(公告)号：US20050135441A1

    公开(公告)日：2005-06-23

    申请号：US10742270

    申请日：2003-12-19

    申请人： Fook Ng ,  Kee Ng ,  Heng Cheng

    发明人： Fook Ng ,  Kee Ng ,  Heng Cheng

    IPC分类号： H05B37/02 ,  F21K99/00 ,  F21S2/00 ,  G01C21/02 ,  G02F1/1335 ,  G02F1/13357 ,  G03B21/14 ,  G05D25/02 ,  G09F9/00 ,  G09G3/32 ,  H01L25/16 ,  H01L31/14 ,  H01L31/147 ,  H01S3/13 ,  H05B33/08

    CPC分类号： H05B33/0821 ,  F21K9/00 ,  F21V23/0457 ,  F21Y2115/10 ,  H05B33/0869

    摘要： A light source and method for controlling the same. The light source includes a first component light source that includes N LEDs, a photo-detector, and a collector, where N>1. Each LED has a light emitting chip in a package. The light emitting chip emits light in a forward direction and light in a side direction. The light generated in the forward direction is determined by a drive signal coupled to that LED. A portion of the light in the side direction leaves the package. The collector is positioned such that a portion of the light in the side direction that leaves the package of each of the LEDs is directed onto the photo-detector. The photo-detector generates N intensity signals, each intensity signal having an amplitude related to the intensity of the light emitted in the side direction by a corresponding one of the LEDs.

    摘要翻译： 一种光源及其控制方法。 该光源包括N个第一组件光源，其中N个LED，一个光电检测器和一个集电极，其中N≥1。 每个LED在封装中具有发光芯片。 发光芯片沿向前方向发光，在侧面方向发光。 在正向生成的光由耦合到该LED的驱动信号确定。 侧面方向的一部分光离开包装。 收集器被定位成使得离开每个LED的封装的侧方的光的一部分被引导到光检测器。 光检测器产生N个强度信号，每个强度信号具有与相应的一个LED在侧向发射的光的强度相关的振幅。

    LED illumination system having an intensity monitoring system
    2.
    发明申请
    LED illumination system having an intensity monitoring system 有权
    LED照明系统具有强度监控系统

    公开(公告)号：US20050133686A1

    公开(公告)日：2005-06-23

    申请号：US10979058

    申请日：2004-11-01

    申请人： Fook Ng ,  Kee Ng ,  Heng Cheng

    发明人： Fook Ng ,  Kee Ng ,  Heng Cheng

    IPC分类号： H05B37/02 ,  F21K99/00 ,  F21S2/00 ,  G01C21/02 ,  G02F1/1335 ,  G02F1/13357 ,  G03B21/14 ,  G05D25/02 ,  G09F9/00 ,  G09G3/32 ,  H01L25/16 ,  H01L31/14 ,  H01L31/147 ,  H01S3/13 ,  H05B33/08

    CPC分类号： H05B33/0869 ,  F21K9/00 ,  F21V23/0457 ,  F21Y2115/10 ,  H05B33/0821

    摘要： A light source and method for controlling the same is disclosed. The light source includes a first component light source that includes N LEDs, a photo-detector, and a light redirector, where N>1. Each LED has a light emitting chip in a package. The light emitting chip emits light in a forward direction and light in a side direction. The light generated in the forward direction is determined by a drive signal coupled to that LED. A portion of the light in the side direction leaves the package. The light redirector is positioned such that a portion of the light in the side direction that leaves the package of each of the LEDs is scattered onto the photo-detector. The photo-detector generates N intensity signals, each intensity signal having an amplitude related to the intensity of the light emitted in the side direction by a corresponding one of the LEDs.

    摘要翻译： 公开了一种光源及其控制方法。 光源包括N个LED的第一分量光源，光检测器和光重定向器，其中N> 1。 每个LED在封装中具有发光芯片。 发光芯片沿向前方向发光，在侧面方向发光。 在正向生成的光由耦合到该LED的驱动信号确定。 侧面方向的一部分光离开包装。 光重定向器被定位成使得离开每个LED的封装的侧方的光的一部分被散射到光检测器上。 光检测器产生N个强度信号，每个强度信号具有与相应的一个LED在侧向发射的光的强度相关的振幅。

    Calibrated LED light module
    3.
    发明申请
    Calibrated LED light module 有权

    公开(公告)号：US20070034775A1

    公开(公告)日：2007-02-15

    申请号：US11205580

    申请日：2005-08-15

    申请人： Heng Cheng ,  Kee Ng ,  Joon Lee

    发明人： Heng Cheng ,  Kee Ng ,  Joon Lee

    IPC分类号： H01J40/14

    CPC分类号： H05B33/0869 ,  H01L25/167 ,  H01L2924/0002 ,  H05B33/0821 ,  H05B33/0866 ,  H01L2924/00

    摘要： A light source and method for making the same are disclosed. The light source includes a plurality of LEDs mounted on a substrate and a sensor for measuring light from the LEDs. Each LED emits light having a different spectrum from the other LEDs, the average intensity of light from that LED being determined by a drive signal coupled to that LED. The sensor generates a plurality of signals, each signal being characterized by a sensor value that is proportional to the intensity of light emitted by a corresponding one of the LEDs. A controller generates the drive signals and stores a current target value for each LED. The drive signals for each of the LEDs is generated such that the sensor value for that LED matches the stored current target value for that LED.

    Phosphor converted light source
    4.
    发明申请
    Phosphor converted light source 有权
    磷光转换光源

    公开(公告)号：US20060261742A1

    公开(公告)日：2006-11-23

    申请号：US11135712

    申请日：2005-05-23

    申请人： Kee Ng ,  Heng Cheng ,  Janet Chua

    发明人： Kee Ng ,  Heng Cheng ,  Janet Chua

    IPC分类号： H05B37/00

    CPC分类号： H05B33/0818 ,  H05B33/0821 ,  H05B33/0863 ,  H05B33/0869 ,  Y10S362/80

    摘要： A light source having first and second phosphor-converted component light sources is disclosed. The first component light source includes a first LED that emits light at a first wavelength and a first luminescent conversion material layer that converts light of the first wavelength to light of a first output wavelength, and the second component light source includes a second LED that emits light at a second wavelength and a second luminescent conversion material layer that converts light of the second wavelength to light of a second output wavelength that is different from the first output wavelength. The first and second LEDs are constructed in the same material system, preferably in the same batch of wafers on the fabrication line. A controller generates a current through each of the first and second LEDs that results in the light source generating light that is perceived to be a predetermined color.

    摘要翻译： 公开了具有第一和第二磷光体转换组件光源的光源。 第一分量光源包括发射第一波长的光的第一LED和将第一波长的光转换成第一输出波长的光的第一发光转换材料层，并且第二分量光源包括发射的第二LED 第二波长的光和将第二波长的光转换成与第一输出波长不同的第二输出波长的光的第二发光转换材料层。 第一和第二LED被构造在相同的材料系统中，优选地在制造线上的同一批晶圆中。 控制器通过导致光源产生感知为预定颜色的光的每个第一和第二LED产生电流。

    Light source calibration
    6.
    发明申请
    Light source calibration 审中-公开
    光源校准

    公开(公告)号：US20060000963A1

    公开(公告)日：2006-01-05

    申请号：US10880949

    申请日：2004-06-30

    申请人： Kee Ng ,  Heng Cheng ,  Joon Lee

    发明人： Kee Ng ,  Heng Cheng ,  Joon Lee

    IPC分类号： G01J1/32

    CPC分类号： G01J1/32 ,  G01J3/10

    摘要： A light source is calibrated and operated. During calibration of the light source, calibration light is provided from a calibration light source. The calibration light is detected. A representation of the detected calibration light is stored. During operation of the light source, light is generated by the light source. The light generated by the light source is detected. The detected light generated by the light source is compared with the stored representation of the detected calibration light to generate information used to control color of the light generated by the light source.

    摘要翻译： 光源经过校准和操作。 在校准光源期间，校准光源由校准光源提供。 检测到校准光。 存储检测到的校准光的表示。 在光源操作期间，由光源产生光。 检测由光源产生的光。 将由光源产生的检测光与检测到的校准光的存储表示进行比较，以产生用于控制由光源产生的光的颜色的信息。

    Luminary control system adapted for reproducing the color of a known light source
    8.
    发明申请
    Luminary control system adapted for reproducing the color of a known light source 有权
    适于再现已知光源的颜色的照明控制系统

    公开(公告)号：US20050134197A1

    公开(公告)日：2005-06-23

    申请号：US10741245

    申请日：2003-12-18

    申请人： Joon Lee ,  Kee Ng ,  Heng Cheng

    发明人： Joon Lee ,  Kee Ng ,  Heng Cheng

    IPC分类号： H05B37/02 ,  H01L33/00 ,  H01S5/042 ,  H05B33/08 ,  H05B39/04

    CPC分类号： H05B33/086 ,  H05B33/0863 ,  H05B33/0869

    摘要： A light source and method for programming the light source to provide a color that approximates that of a target light source are disclosed. The light source generates light at first and second wavelengths with intensities that are determined by first and second control signals that are set by a feedback controller that matches the outputs of a monitoring circuit to target signals. The target signals are generated from target values that are entered into the feedback controller by exposing the light source to the target light source and observing the outputs from a set of photodetectors incorporated in the light source. In one embodiment, the photodetectors in the monitoring circuit are used for this programming function.

    摘要翻译： 公开了一种用于对光源进行编程以提供近似于目标光源的颜色的光源和方法。 光源产生第一和第二波长的光，其强度由第一和第二控制信号确定，该第一和第二控制信号由反馈控制器设置，该反馈控制器将监视电路的输出与目标信号相匹配。 目标信号是通过将光源曝光到目标光源并观察来自结合在光源中的一组光电检测器的输出而从输入反馈控制器的目标值产生的。 在一个实施例中，监视电路中的光电检测器用于该编程功能。

    Field-sequential color display with feedback control
    9.
    发明申请
    Field-sequential color display with feedback control 审中-公开
    具有反馈控制的场顺序彩色显示

    公开(公告)号：US20060097978A1

    公开(公告)日：2006-05-11

    申请号：US10970911

    申请日：2004-10-22

    申请人： Kee Ng ,  Joon Lee ,  Eit Yap ,  Yew Kuan ,  Heng Cheng

    发明人： Kee Ng ,  Joon Lee ,  Eit Yap ,  Yew Kuan ,  Heng Cheng

    IPC分类号： G09G3/36

    CPC分类号： G09G3/3413 ,  G02F1/133603 ,  G02F2001/133622 ,  G09G2310/0235

    摘要： A field-sequential color light system has a light source that includes multiple color light emitting diodes (LEDs) and a spectral feedback control system that is configured to drive the color LEDs, to detect light from the color LEDs, and to adjust color-sequential drive signals in response to the light detection system. Detecting the emitted light and adjusting the color-sequential drive signals in response to the light detection allows luminance and chrominance characteristics of the emitted light from the field-sequential color light system to be maintained at desired levels as the performance of the LEDs change over time.

    摘要翻译： 场顺序彩色光系统具有包括多个彩色发光二极管（LED）的光源和被配置为驱动彩色LED，检测来自彩色LED的光并且调整颜色顺序的光谱反馈控制系统 响应于光检测系统的驱动信号。 响应于光检测来检测发射的光并调整色顺驱动信号，使得来自场序色光系统的发射光的亮度和色度特性将保持在期望的水平，因为随着时间的推移LED的性能变化 。