公开(公告)号：US07938557B2

公开(公告)日：2011-05-10

申请号：US11020998

申请日：2004-12-23

申请人： Sundar Natarajan Yoganandan ,  Thye Linn Mok ,  Kian Shin Lee ,  Norfidathul Aizar Abdul Karim ,  Su Lin Oon ,  Siew It Pang ,  Kheng Leng Tan ,  Fakhrul Arifin Mohd Afif ,  Wen Ya Ou ,  Yew Cheong Kuan

发明人： Sundar Natarajan Yoganandan ,  Thye Linn Mok ,  Kian Shin Lee ,  Norfidathul Aizar Abdul Karim ,  Su Lin Oon ,  Siew It Pang ,  Kheng Leng Tan ,  Fakhrul Arifin Mohd Afif ,  Wen Ya Ou ,  Yew Cheong Kuan

IPC分类号： B60Q1/26

CPC分类号： H05B33/086 ,  H05B33/0869 ,  Y10S362/80

摘要： A light source and a method for operating the same are disclosed. The light source includes a light emitter and a controller. The light emitter generates light in response to a control signal coupled thereto. The light emitter is characterized by an age related to the amount of light that has been cumulatively generated by the light emitter, the generated light for a given control signal changing with the age. The controller measures the age of the light emitter and generates the control signal based on the desired light intensity and the measured age of the light emitter. In one embodiment, the controller stores an age value for the light emitter, and the controller determines the control signal in response to an input signal specifying a desired light intensity from the light emitter, the controller updating the age value each time the control signal is determined.

摘要翻译： 公开了一种光源及其操作方法。 光源包括光发射器和控制器。 光发射器响应于耦合到其的控制信号而产生光。 光发射器的特征在于与由光发射器累积产生的光量相关的年龄，对于给定的控制信号随着年龄的变化而产生的光。 控制器测量光发射器的年龄，并根据所需的光强度和发光体的测量年龄产生控制信号。 在一个实施例中，控制器存储光发射器的老化值，并且控制器响应于指定来自光发射器的期望光强度的输入信号来确定控制信号，控制器在每次控制信号为 决心。

公开(公告)号：US07208738B2

公开(公告)日：2007-04-24

申请号：US11069315

申请日：2005-02-28

申请人： Sundar Natarajan Yoganandan ,  Fakhrul Arifin Mohd. Afif ,  Klan Shin Lee ,  Slew It Pang ,  Kheng Leng Tan ,  Yew Cheong Kuan ,  Su Lin Oon ,  Wen Ya Ou ,  Norfidathul Aizar Abdul Karim ,  Thye Linn Mok

发明人： Sundar Natarajan Yoganandan ,  Fakhrul Arifin Mohd. Afif ,  Klan Shin Lee ,  Slew It Pang ,  Kheng Leng Tan ,  Yew Cheong Kuan ,  Su Lin Oon ,  Wen Ya Ou ,  Norfidathul Aizar Abdul Karim ,  Thye Linn Mok

IPC分类号： G01J1/42 ,  H01L27/15

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

摘要： 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.

摘要翻译： 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：US20070274079A1

公开(公告)日：2007-11-29

申请号：US11438853

申请日：2006-05-23

申请人： Ju Chin Poh ,  Thye Linn Mok ,  Sundar Natarajan Yoganandan ,  Tong Fatt Chew ,  Fook Chuin Ng ,  Siew It Pang

发明人： Ju Chin Poh ,  Thye Linn Mok ,  Sundar Natarajan Yoganandan ,  Tong Fatt Chew ,  Fook Chuin Ng ,  Siew It Pang

IPC分类号： F21V7/00

CPC分类号： G02B6/0031 ,  G02B6/0068 ,  G02B6/0073 ,  Y10S362/80

摘要： A lighting system is described. One embodiment of the lighting system includes a light guide, a first lighting device, and a second lighting device. The light guide receives light along a transmission interface. The first lighting device has a first plurality of lighting elements coupled to a first substrate between a first pair of reflector walls. The first substrate and the first pair of reflector walls define a first exposed side of the first lighting device. The second lighting device has a second plurality of lighting elements coupled to a second substrate between a second pair of reflector walls. The second substrate and the second pair of reflector walls define a second exposed side of the second lighting device configured to match the first exposed side of the first lighting device. Using lighting devices without sidewalls illuminates a diffusion panel so that there are no dark spots.

摘要翻译： 描述照明系统。 照明系统的一个实施例包括光导，第一照明设备和第二照明设备。 光导沿着传输界面接收光。 第一照明装置具有在第一对反射器壁之间耦合到第一基板的第一多个照明元件。 第一基板和第一对反射器壁限定第一照明装置的第一暴露侧。 第二照明装置具有在第二对反射器壁之间耦合到第二基板的第二多个照明元件。 第二基板和第二对反射器壁限定第二照明装置的第二暴露侧，其被配置成与第一照明装置的第一暴露侧匹配。 使用没有侧壁的照明设备照亮漫射面板，使得没有黑点。

公开(公告)号：US07736044B2

公开(公告)日：2010-06-15

申请号：US11441503

申请日：2006-05-26

申请人： Tong Fatt Chew ,  Siew It Pang ,  Sundar Natarajan Yoganandan ,  Kee Yean Ng

发明人： Tong Fatt Chew ,  Siew It Pang ,  Sundar Natarajan Yoganandan ,  Kee Yean Ng

IPC分类号： F21V7/04

CPC分类号： G02B6/0031 ,  F21K9/64 ,  F21V7/0008 ,  F21V29/503 ,  F21V31/04 ,  F21Y2115/10 ,  G02B6/0068 ,  G02B6/0073 ,  G02B19/0028 ,  G02B19/0066 ,  H01L33/60 ,  H01L2224/48091 ,  H01L2924/00014

摘要： A lighting apparatus is described. One embodiment of the lighting apparatus includes a substrate and a lighting element. The lighting element is coupled to the substrate to emit light through a light exit plane. The light exit plane is substantially perpendicular to the substrate. By providing a lighting device with a substrate oriented perpendicular to the light exit plane of the lighting device, the lighting device can enable better mixing of the light from different LEDs. The lighting apparatus facilitates light mixing, generally, to minimize or eliminate dark spots on the diffusion panel. The lighting device also facilitates color mixing to produce relatively consistent white light on the diffusion panel.

摘要翻译： 描述照明装置。 照明装置的一个实施例包括基板和照明元件。 照明元件耦合到基板以通过光出射平面发光。 光出射面基本上垂直于基底。 通过为照明装置提供垂直于照明装置的光出射平面定向的基板，照明装置可以实现来自不同LED的光的更好的混合。 照明装置通常便于轻混合，以最小化或消除漫射面板上的黑斑。 照明装置还促进混色以在扩散面板上产生相对一致的白光。

公开(公告)号：US20070274096A1

公开(公告)日：2007-11-29

申请号：US11441503

申请日：2006-05-26

申请人： Tong Fatt Chew ,  Siew It Pang ,  Sundar Natarajan Yoganandan ,  Kee Yean Ng

发明人： Tong Fatt Chew ,  Siew It Pang ,  Sundar Natarajan Yoganandan ,  Kee Yean Ng

IPC分类号： F21V7/20 ,  F21V29/00 ,  F21V9/16 ,  G02B5/02 ,  F21V7/04

CPC分类号： G02B6/0031 ,  F21K9/64 ,  F21V7/0008 ,  F21V29/503 ,  F21V31/04 ,  F21Y2115/10 ,  G02B6/0068 ,  G02B6/0073 ,  G02B19/0028 ,  G02B19/0066 ,  H01L33/60 ,  H01L2224/48091 ,  H01L2924/00014

摘要： A lighting apparatus is described. One embodiment of the lighting apparatus includes a substrate and a lighting element. The lighting element is coupled to the substrate to emit light through a light exit plane. The light exit plane is substantially perpendicular to the substrate. By providing a lighting device with a substrate oriented perpendicular to the light exit plane of the lighting device, the lighting device can enable better mixing of the light from different LEDs. The lighting apparatus facilitates light mixing, generally, to minimize or eliminate dark spots on the diffusion panel. The lighting device also facilitates color mixing to produce relatively consistent white light on the diffusion panel.

摘要翻译： 描述照明装置。 照明装置的一个实施例包括基板和照明元件。 照明元件耦合到基板以通过光出射平面发光。 光出射面基本上垂直于基底。 通过为照明装置提供垂直于照明装置的光出射平面定向的基板，照明装置可以实现来自不同LED的光的更好的混合。 照明装置通常便于轻混合，以最小化或消除漫射面板上的黑斑。 照明装置还促进混色以在扩散面板上产生相对一致的白光。