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：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：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：US07145127B2

公开(公告)日：2006-12-05

申请号：US10926243

申请日：2004-08-25

申请人： Yee Loong Chin ,  Siang Leong Foo ,  Chee Keong Chong

发明人： Yee Loong Chin ,  Siang Leong Foo ,  Chee Keong Chong

IPC分类号： G01D5/34 ,  H01J3/14 ,  H03M1/22

CPC分类号： G01D5/34707

摘要： A coding element such as a codewheel includes first and second surfaces that are configured with respect to each other and with respect to a light beam such that the light beam is reflected at the two surfaces using the optical phenomenon of total internal reflection. The coding element also includes a coding pattern that is aligned in an optical path of the light beam after the light beam has reflected off of both of the surfaces. A coding element with surfaces that reflect a light beam as a result of total internal reflection can be utilized in an encoding system that operates in transmission while the light source and the photodetector array are located on the same side of the coding element.

公开(公告)号：US06995356B2

公开(公告)日：2006-02-07

申请号：US10369859

申请日：2003-02-20

申请人： Chee Keong Chong ,  Yee Loong Chin

发明人： Chee Keong Chong ,  Yee Loong Chin

IPC分类号： G01D5/34

CPC分类号： G01D5/347

摘要： An optical encoder device (100) comprises: an optical emitter (103) for emitting light, the optical emitter (103) having a light emission direction (E); an optical detector (104) for detecting light emitted by the optical emitter (103), the optical detector (104) having a light detection direction (D) which is different from the light emission direction (E); an optical element (109) for controlling an optical path (108) between the optical emitter (103) and the optical detector (104) such that light emitted by the optical emitter (103) can be detected by the optical detector (104); and a free area (113) in the optical encoder device (100) for accommodating a moveable optical encoding unit (112) comprising a plurality of alternating transparent and opaque encoding elements such that the plurality of alternating transparent and opaque encoding elements of the optical encoding unit (112) is able to affect the optical path (108).

摘要翻译： 光学编码器装置（100）包括：用于发射光的光发射器（103），具有发光方向（E）的光发射器（103）; 用于检测由所述光发射器（103）发射的光的光学检测器（104），所述光学检测器（104）具有与所述发光方向（E）不同的光检测方向（D）。 用于控制光发射器（103）和光检测器（104）之间的光路（108）的光学元件（109），使得由光发射器（103）发射的光能够被光检测器（104）检测; 以及光学编码器装置（100）中的用于容纳包括多个交替的透明和不透明编码元件的可移动光学编码单元（112）的空闲区域（113），使得光学编码的多个交替的透明和不透明的编码元件 单元（112）能够影响光路（108）。

公开(公告)号：US20120104242A1

公开(公告)日：2012-05-03

申请号：US12916582

申请日：2010-10-31

申请人： Yee Loong Chin ,  Wee Jin Yeap

发明人： Yee Loong Chin ,  Wee Jin Yeap

IPC分类号： G01D5/34 ,  H05K13/00

CPC分类号： G01D5/34715 ,  Y10T29/49002

摘要： Disclosed are various embodiments of high-speed, high-performance, low-noise, low-cost, compact, optical encoders having a multi-faceted flat-faced lens disposed over the light emitters and light detectors thereof. Disclosed also are various means for preventing undesired stray light from reaching light detectors incorporated therein. Structures employed to block stray light in the optical encoders include light barriers, air gap trenches, and coatings disposed between first and second sides of a substrate of the encoder. Methods of making such optical encoders are also disclosed.

摘要翻译： 公开了具有设置在其发光器和光检测器上的多面平面透镜的高速，高性能，低噪声，低成本，紧凑的光学编码器的各种实施例。 还公开了防止不想要的杂散光到达并入其中的光检测器的各种手段。 用于阻挡光学编码器中的杂散光的结构包括光栅，气隙沟槽和设置在编码器的基板的第一和第二侧之间的涂层。 还公开了制造这种光学编码器的方法。

公开(公告)号：US20100171029A1

公开(公告)日：2010-07-08

申请号：US12350932

申请日：2009-01-08

申请人： Sze Kuang Lee ,  Weng Fei Wong ,  Yee Loong Chin

发明人： Sze Kuang Lee ,  Weng Fei Wong ,  Yee Loong Chin

IPC分类号： G01D5/34

CPC分类号： G01D5/34738

摘要： Disclosed herein are a number of different embodiments of reflective multi-turn optical encoders with different light sensing systems. Three different basic configurations of reflective multi-turn optical encoder light sensing systems are disclosed herein: (a) optical encoders employing multiple arrays of light detectors; (b) optical encoders employing multiple arrays of stacked die light sensors, and (c) optical encoders employing variable tone density light sensing systems.

摘要翻译： 这里公开了具有不同光感测系统的反射多圈光学编码器的许多不同实施例。 本文公开了三种不同的反光多圈光学编码器光感测系统的基本配置：（a）采用多个光检测器阵列的光学编码器; （b）采用多个堆叠管芯光传感器阵列的光学编码器，以及（c）采用可变色调光感测系统的光学编码器。

公开(公告)号：US08193483B2

公开(公告)日：2012-06-05

申请号：US12861194

申请日：2010-08-23

申请人： Yee Loong Chin ,  Weng Fei Wong ,  Wee Jin Yeap ,  Cheng Kwong Cheang

发明人： Yee Loong Chin ,  Weng Fei Wong ,  Wee Jin Yeap ,  Cheng Kwong Cheang

IPC分类号： G01D5/34 ,  H03M1/22

CPC分类号： G02B3/04 ,  G01D5/34715 ,  G02B19/0028 ,  G02B19/0085

摘要： Disclosed are various embodiments of high-speed, high-performance, low-noise optical encoders having various means for preventing undesired stray light from reaching light detectors incorporated therein. Structures employed to block stray light in the optical encoders include light barriers, air gap trenches, and coatings disposed between first and second sides of a substrate of the encoder. Also disclosed are compact single track optical encoders having a single dome lens disposed thereover, and dual track triple dome lens optical encoders. Methods of making such optical encoders are also disclosed.

摘要翻译： 公开了具有用于防止不想要的杂散光到达并入其中的光检测器的各种装置的高速，高性能，低噪声光学编码器的各种实施例。 用于阻挡光学编码器中的杂散光的结构包括光栅，气隙沟槽和设置在编码器的基板的第一和第二侧之间的涂层。 还公开了具有设置在其上的单个圆顶透镜的紧凑型单轨光学编码器和双轨三重圆顶透镜光学编码器。 还公开了制造这种光学编码器的方法。

公开(公告)号：US08063355B2

公开(公告)日：2011-11-22

申请号：US12350932

申请日：2009-01-08

申请人： Sze Kuang Lee ,  Yee Loong Chin ,  Weng Fei Wong

发明人： Sze Kuang Lee ,  Yee Loong Chin ,  Weng Fei Wong

IPC分类号： G01D5/34

CPC分类号： G01D5/34738

摘要： Disclosed herein are a number of different embodiments of reflective multi-turn optical encoders with different light sensing systems. Three different basic configurations of reflective multi-turn optical encoder light sensing systems are disclosed herein: (a) optical encoders employing multiple arrays of light detectors; (b) optical encoders employing multiple arrays of stacked die light sensors, and (c) optical encoders employing variable tone density light sensing systems.

摘要翻译： 这里公开了具有不同光感测系统的反射多圈光学编码器的许多不同实施例。 本文公开了三种不同的反光多圈光学编码器光感测系统的基本配置：（a）采用多个光检测器阵列的光学编码器; （b）采用多个堆叠管芯光传感器阵列的光学编码器，以及（c）采用可变色调光感测系统的光学编码器。