公开(公告)号：US06768101B1

公开(公告)日：2004-07-27

申请号：US10455641

申请日：2003-06-04

申请人： Boon Kheng Lee ,  Kee Siang Goh ,  Yee Long Chin ,  Chee Keong Chong ,  Gurbir Singh

发明人： Boon Kheng Lee ,  Kee Siang Goh ,  Yee Long Chin ,  Chee Keong Chong ,  Gurbir Singh

IPC分类号： G01D514

CPC分类号： G01D5/34715

摘要： A high resolution optical encoder with an angular collimated light beam. The optical encoder includes a source, a collimator, a reflective surface and a receiver. The light beam is collimated using a collimator and/or source at an angle to the plane of the reflective surface.

摘要翻译： 具有角度准直光束的高分辨率光学编码器。 光学编码器包括源，准直器，反射表面和接收器。 使用准直器和/或源与反射表面的平面成一定角度准直光束。

公开(公告)号：US07112916B2

公开(公告)日：2006-09-26

申请号：US10267759

申请日：2002-10-09

申请人： Kee Siang Goh ,  Boon Kheng Lee ,  Yee Loong Chin ,  Gurbir Singh

发明人： Kee Siang Goh ,  Boon Kheng Lee ,  Yee Loong Chin ,  Gurbir Singh

IPC分类号： H05B33/04

CPC分类号： H01L33/60 ,  H01L33/44 ,  H01L33/46 ,  Y10S362/80

摘要： A light emitting diode, a reflector and a platform are employed within a light source. The light emitting diode emits light exclusively from its side surfaces. The reflector has a parabolic reflective surface that collimates any portion of the light reflecting from the parabolic reflective surface. The platform supports a centering of the light emitting layer(s) of the light emitting diode on a focus point of the parabolic reflective surface.

摘要翻译： 在光源内采用发光二极管，反射器和平台。 发光二极管从其侧表面专门发光。 反射器具有抛物面反射表面，其对来自抛物面反射表面的光的任何部分进行准直。 平台支持在抛物面反射表面的焦点上的发光二极管的发光层的定心。

公开(公告)号：US07622707B2

公开(公告)日：2009-11-24

申请号：US10810173

申请日：2004-03-26

申请人： Yee Loong Chin ,  Kee Siang Goh ,  Chee Keong Chong

发明人： Yee Loong Chin ,  Kee Siang Goh ,  Chee Keong Chong

IPC分类号： G01D5/34

CPC分类号： G01D5/34792 ,  G01D5/345

摘要： A polaroid encoder system for detecting movement is disclosed. The system includes a movable polarizing code element. A detector module detects an amplitude based on how much illumination passes through one portion of the movable polarizing code element. A quadrant of the movable polarizing code element is determined based on how much illumination passes through another portion of the movable polarizing code element. The angular position of the movable polarizing code element can then be determined by using amplitude and the quadrant information.

摘要翻译： 公开了一种用于检测运动的宝丽来编码器系统。 该系统包括可移动的偏振光元件。 检测器模块基于多少照射通过可移动偏振码元件的一部分来检测振幅。 基于多少照射通过可移动偏振光元件的另一部分来确定可移动偏振光元件的象限。 然后可以通过使用振幅和象限信息来确定可移动偏振光元件的角位置。

公开(公告)号：US06717362B1

公开(公告)日：2004-04-06

申请号：US10371142

申请日：2003-02-20

申请人： Boon Kheng Lee ,  Kee Siang Goh ,  Yee Loong Chin ,  Chen Why Tan

发明人： Boon Kheng Lee ,  Kee Siang Goh ,  Yee Loong Chin ,  Chen Why Tan

IPC分类号： H01J162

CPC分类号： H01L33/56 ,  Y10S362/80

摘要： A light emitting diode (100) is disclosed comprising a p-n junction diode for emitting light; and a transparent casing encapsulating the p-n junction diode. The transparent casing having an inner portion in contact with the p-n junction diode, wherein the refractive index of the transparent casing is higher at the inner portion than an outer portion thereof. In one embodiment the transparent casing comprises at least a first and a second transparent layer, with the first transparent layer encapsulating the p-n junction diode, and the second transparent layer encapsulating the first transparent layer, wherein the refractive index of the first transparent layer is higher than the refractive index of the second transparent layer. In an alternative embodiment the transparent casing comprises at least one transparent layer, wherein the refractive index of the transparent layer is higher at an inner portion than an outer portion thereof.

摘要翻译： 公开了一种发光二极管（100），其包括用于发光的p-n结二极管; 以及封装p-n结二极管的透明套管。 透明壳体具有与p-n结二极管接触的内部部分，其中透明壳体的折射率在内部比其外部部分高。 在一个实施例中，透明外壳包括至少第一透明层和第二透明层，第一透明层封装pn结二极管，第二透明层封装第一透明层，其中第一透明层的折射率较高 比第二透明层的折射率高。 在替代实施例中，透明外壳包括至少一个透明层，其中透明层的折射率在内部比其外部更高。

公开(公告)号：US07102177B2

公开(公告)日：2006-09-05

申请号：US10649094

申请日：2003-08-26

申请人： Kee Siang Goh ,  Yee Loong Chin ,  Boon Kheng Lee ,  Cheng Why Tan

发明人： Kee Siang Goh ,  Yee Loong Chin ,  Boon Kheng Lee ,  Cheng Why Tan

IPC分类号： H01L33/00

CPC分类号： H01L33/58

摘要： The light-emitting device includes a light source and a gradient index (GRIN) element. The GRIN element has a cylindrical refractive index profile in which the refractive index varies radially and is substantially constant axially. The GRIN element includes a first end surface opposite a second end surface and is characterized by a length-to-pitch ratio. The GRIN element is arranged with the first end surface adjacent the light source to receive light from the light source, and emits the light from the second end surface in a radiation pattern dependent on the length-to-pitch ratio. Since the radiation pattern depends on the length-to-pitch ratio of the GRIN element, LEDs with different radiation patterns can be made simply by using GRIN elements of appropriate lengths.

公开(公告)号：US08450757B2

公开(公告)日：2013-05-28

申请号：US11439686

申请日：2006-05-24

申请人： Kee Siang Goh

发明人： Kee Siang Goh

IPC分类号： H01L33/00

CPC分类号： H01L33/58

摘要： The light-emitting device includes a light source and a gradient index (GRIN) element. The GRIN element has a cylindrical refractive index profile in which the refractive index varies radially and is substantially constant axially. The GRIN element includes a first end surface opposite a second end surface and is characterized by a length-to-pitch ratio. The GRIN element is arranged with the first end surface adjacent the light source to receive light from the light source, and emits the light from the second end surface in a radiation pattern dependent on the length-to-pitch ratio. Since the radiation pattern depends on the length-to-pitch ratio of the GRIN element, LEDs with different radiation patterns can be made simply by using GRIN elements of appropriate lengths.

摘要翻译： 发光装置包括光源和梯度折射率（GRIN）元件。 GRIN元件具有圆柱形折射率分布，其中折射率径向变化并且轴向基本上恒定。 GRIN元件包括与第二端面相对的第一端面，其特征在于长度与间距比。 GRIN元件布置成具有邻近光源的第一端表面以接收来自光源的光，并且以取决于长度与间距比的辐射图案从第二端表面发射光。 由于辐射图取决于GRIN元件的长度间距比，所以可以通过使用适当长度的GRIN元件简单地制作具有不同辐射图案的LED。