公开(公告)号：US07490771B2

公开(公告)日：2009-02-17

申请号：US11370133

申请日：2006-03-06

申请人： Cheng Why Tan ,  Yee Loong Chin

发明人： Cheng Why Tan ,  Yee Loong Chin

IPC分类号： G06K7/10 ,  G01D5/34

CPC分类号： G06K7/10831

摘要： An encoder having a code strip and an emitter-detector module is disclosed. The code strip includes alternating reflective and opaque stripes. The emitter-detector module includes a housing, a lens insert, a light source and a photodetector. Light from the light source illuminates the code strip, and light reflected from the code strip is incident on the photodetector. The lens insert includes a lens that processes light generated by the light source either before the light reaches the code strip or after the light is reflected from the code strip. The lens insert mates with the housing to position the lens at a predetermined point relative to the light source or the photodetector. The housing will accept a plurality of lens inserts, each lens insert having a different lens from the others of the lens inserts.

摘要翻译： 公开了具有码带和发射极检测器模块的编码器。 代码条包括交替的反射和不透明条纹。 发射极检测器模块包括壳体，透镜插入件，光源和光电检测器。 来自光源的光照亮编码条，并且从代码条反射的光入射到光电检测器上。 透镜插入件包括在光到达代码条之前或在光从代码条反射之后处理由光源产生的光的透镜。 透镜插入件与壳体配合，以将透镜定位在相对于光源或光电检测器的预定点。 该壳体将接收多个透镜插入件，每个透镜插入件具有与透镜插入物中的其它透镜插入件不同的透镜。

公开(公告)号：US07465917B2

公开(公告)日：2008-12-16

申请号：US11356563

申请日：2006-02-16

申请人： Yee Loong Chin ,  Kean Foong Ng

发明人： Yee Loong Chin ,  Kean Foong Ng

IPC分类号： G01D5/34

CPC分类号： G01D5/24438 ,  G01D5/347 ,  G01D5/34792

摘要： An encoder having a code scale, an illumination system, and a plurality of photodetectors is disclosed. The code scale has a plurality of tracks that are illuminated by the illumination system. Each photodetector receives light from a corresponding one of the tracks and generates a signal indicative of a quantity of light received from that track. Each photodetector is limited to detecting light in a band of wavelengths corresponding to that track. Each track generates light in a band of wavelengths corresponding to that track, and the band of wavelengths corresponding to one of the tracks is different from the band of wavelengths corresponding to the tracks that are next to that track. The tracks can include alternating reflective and absorptive stripes, alternating transmissive and reflective stripes, or alternating luminescent and absorptive stripes.

摘要翻译： 公开了一种具有代码量表，照明系统和多个光电检测器的编码器。 代码标度具有由照明系统照亮的多个轨迹。 每个光电检测器从相应的一个轨道接收光，并产生指示从该轨道接收的光量的信号。 每个光电检测器被限制为检测对应于该轨道的波长带中的光。 每个轨道产生与该轨道相对应的波长带中的光，并且与一个轨道对应的波长带不同于与该轨道相邻的轨道对应的波长带。 轨道可以包括交替的反射和吸收条纹，交替的透射和反射条纹，或交替的发光和吸收条纹。

公开(公告)号：US07462815B2

公开(公告)日：2008-12-09

申请号：US11301600

申请日：2005-12-13

申请人： Janet Bee Yin Chua ,  Yee Loong Chin

发明人： Janet Bee Yin Chua ,  Yee Loong Chin

IPC分类号： G01D5/34 ,  G01D5/36 ,  G01B3/56 ,  H03M1/22

CPC分类号： G01D5/3473 ,  G01D5/34715

摘要： An encoder having a code carrier, light source, and detector is disclosed. The code carrier includes a track that emits light at each of a plurality of track points on the track when that track point is illuminated with light having a predetermined spectrum. Each of the track points emits light having a spectrum that is different from the spectrum emitted by others of the track points. The light source illuminates a portion of the track with light of the predetermined illumination spectrum. The detector provides a plurality of signals indicative of the spectrum of light leaving the portion of the track when the portion includes one of the track points. The code carrier moves with respect to the detector, and the signals define the relative position of the code carrier with respect to the detector.

摘要翻译： 公开了一种具有代码载体，光源和检测器的编码器。 代码载体包括当轨道点被具有预定频谱的光照射时在轨道上的多个轨迹点的每一个处发光的轨道。 每个轨迹点发射具有不同于其他轨道点发射的频谱的光谱的光。 光源以预定的照明光谱的光照亮轨道的一部分。 当该部分包括轨迹点之一时，检测器提供指示离开轨道部分的光谱的多个信号。 代码载体相对于检测器移动，并且信号定义代码载体相对于检测器的相对位置。

公开(公告)号：US07385178B2

公开(公告)日：2008-06-10

申请号：US11259419

申请日：2005-10-26

申请人： Yee Loong Chin ,  Siang Leong Foo ,  Weng Fei Wong ,  Saiful Bahari Bin Saidan ,  Cheng Why Tan ,  Wee Jin Yeap

发明人： Yee Loong Chin ,  Siang Leong Foo ,  Weng Fei Wong ,  Saiful Bahari Bin Saidan ,  Cheng Why Tan ,  Wee Jin Yeap

IPC分类号： G01D5/34

CPC分类号： G01D5/34715

摘要： Optical encoders having one or more of a number of disclosed features are disclosed. The features of the optical encoder in accordance with the present invention include a symmetrical (for example, circular) emitter; baffle between the emitter and a detector; double-dome or single-dome encapsulant; multiple detector; and multiple (at least three) data channels.

摘要翻译： 公开了具有多个公开特征中的一个或多个的光学编码器。 根据本发明的光学编码器的特征包括对称（例如圆形）发射器; 发射器和检测器之间的挡板; 双圆顶或单圆顶密封剂; 多检测器 和多个（至少三个）数据信道。

公开(公告)号：US07265336B2

公开(公告)日：2007-09-04

申请号：US10725696

申请日：2003-12-01

申请人： Toshiya Hataguchi ,  Yee Loong Chin ,  Kok Hing Fo ,  Srinivasan Lakshmanan ,  Lai Hing Chua

发明人： Toshiya Hataguchi ,  Yee Loong Chin ,  Kok Hing Fo ,  Srinivasan Lakshmanan ,  Lai Hing Chua

IPC分类号： G01D5/34

CPC分类号： G01D5/3473 ,  G01D5/34707

摘要： An encoder for measuring the position of a rotating shaft is disclosed. The encoder includes a drum having an encoding track thereon and a detector module having a light source and a photodetector. The drum includes a cylindrical surface characterized by an axis, the drum having a surface with a normal perpendicular to the axis. The encoding track includes a plurality of alternating reflective and non-reflective stripes arranged on the cylindrical surface. The first light source illuminates the stripes at an opaque angle relative to the normal. The first photodetector is positioned to receive light from the light source that is reflected from the reflective stripes when the drum moves relative to the photodetector. In one embodiment, the drum rotates about the axis when the shaft rotates. The encoding track can be either on the inside or outside of the drum.

摘要翻译： 公开了一种用于测量旋转轴的位置的编码器。 编码器包括其上具有编码轨道的滚筒和具有光源和光电检测器的检测器模块。 滚筒包括由轴线表征的圆柱形表面，滚筒具有垂直于轴线的法线。 编码轨道包括布置在圆柱形表面上的多个交替反射和非反射条纹。 第一光源相对于法线以不透明的角度照亮条纹。 第一光电检测器定位成当滚筒相对于光电检测器移动时接收来自反射条纹的光源的光。 在一个实施例中，当轴旋转时，滚筒绕轴线旋转。 编码轨道可以在鼓的内部或外部。

公开(公告)号：US07182258B2

公开(公告)日：2007-02-27

申请号：US10985701

申请日：2004-11-10

申请人： Siang Leong Foo ,  Weng Fei Wong ,  Yee Loong Chin

发明人： Siang Leong Foo ,  Weng Fei Wong ,  Yee Loong Chin

IPC分类号： G06K7/10 ,  G01D5/34

CPC分类号： G01D5/34715

摘要： An Enhanced Reflective Optical Encoder (“EROE”) having an emitter module for transmitting emitted optical radiation to an encoded media and a detector module for receiving reflected optical radiation from the encoded media. The EROE may include a transmissive layer covering both the emitter module and the detector module, and an optical isolation element located within the transmissive layer and located between the emitter module and the detector module. The optical isolation element reduces undesired optical radiation transmitted from the emitter module to the detector module, where the undesired optical radiation is a portion of the emitted optical radiation.

摘要翻译： 具有用于将发射的光辐射传输到编码介质的发射器模块的增强反射光学编码器（“EROE”）和用于接收来自已编码介质的反射光辐射的检测器模块。 EROE可以包括覆盖发射器模块和检测器模块的透射层，以及位于透射层内并位于发射器模块和检测器模块之间的光学隔离元件。 光隔离元件减少从发射器模块传输到检测器模块的不期望的光辐射，其中不需要的光辐射是所发射的光辐射的一部分。

公开(公告)号：US07180430B2

公开(公告)日：2007-02-20

申请号：US10979280

申请日：2004-11-01

申请人： Kean Foong Ng ,  Hock Aun Tan ,  Moon Leong Low ,  Yee Loong Chin

发明人： Kean Foong Ng ,  Hock Aun Tan ,  Moon Leong Low ,  Yee Loong Chin

IPC分类号： H03M1/22 ,  G01D5/34

CPC分类号： G01D5/34715

摘要： A Low-Cost Absolute Linear Optical Encoder (“LALOE”) for determining the absolute position of a read-head within the LALOE relative to a codestrip is disclosed. The LALOE may include an emitter module within the read-head, the emitter module having a plurality of light sources arranged in an light source pattern and a 90° Out-Of-Phase light source; and a detector module within the read-head, the detector module having a plurality of photo-detectors arranged in a photo-detector pattern corresponding to the light source pattern and a 90° Out-Of-Phase photo-detector corresponding to the 90° Out-Of-Phase light source.

摘要翻译： 公开了一种用于确定LALOE内的读取头相对于码头的绝对位置的低成本绝对线性光学编码器（“LALOE”）。 LALOE可以在读取头内包括发射器模块，发射器模块具有以光源图案和90°异相光源布置的多个光源; 以及在读取头内的检测器模块，检测器模块具有多个光电检测器，其以对应于光源图案的光检测器图案布置，并且90°异相光检测器对应于90° 异相光源。

公开(公告)号：US07102123B2

公开(公告)日：2006-09-05

申请号：US10696247

申请日：2003-10-28

申请人： Yee Loong Chin ,  Kok Hing Fo

发明人： Yee Loong Chin ,  Kok Hing Fo

IPC分类号： G01D5/34

CPC分类号： G01D5/34715

摘要： Reflective image encoder. A reflective image encoder has an emitter such as one or more light emitting diodes, a diffuse reflective coder such as a code wheel or code strip reflecting a portion of the light from the emitter, an imaging lens forming an inverted image on to a detector. The reflective image encoder may include apertures on either or both sides of the imaging lens, and may include baffles to minimize stray light reaching the detector.

摘要翻译： 反光图像编码器。 反射图像编码器具有诸如一个或多个发光二极管的发射器，反射来自发射器的光的一部分的代码轮或代码带的漫反射编码器，形成反转图像的成像透镜到检测器。 反射图像编码器可以包括成像透镜的一侧或两侧的孔，并且可以包括挡板以最小化到达检测器的杂散光。

公开(公告)号：US09383229B2

公开(公告)日：2016-07-05

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： G01J9/00 ,  G01D5/36 ,  G06M7/00 ,  G01D5/347

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 is 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，其设置在其发光体和光检测器上。 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。 还公开了制造这样的光学编码器的方法。

公开(公告)号：US08232966B2

公开(公告)日：2012-07-31

申请号：US12132554

申请日：2008-06-03

申请人： Chiang Sun Cheah ,  Ak Wing Leong ,  Yee Loong Chin

发明人： Chiang Sun Cheah ,  Ak Wing Leong ,  Yee Loong Chin

IPC分类号： G09G5/08

CPC分类号： G06F3/0317 ,  G06F3/03543

摘要： An optical navigation system with optical imaging of multiple inputs using a single navigation sensor. The optical navigation system includes a tactile interface device, an image sensor, and a processor. The tactile interface device facilitates a navigation input. The image sensor intermittently generates images of a surface of the tactile interface device and images of a contact navigation surface. The image sensor also generates the images of the surface of the tactile interface device exclusive of the images of the contact navigation surface. The processor is coupled to the image sensor. The processor generates a first navigation signal based on the images of the tactile interface device and generates a second navigation signal based on the images of the contact navigation surface.

摘要翻译： 使用单一导航传感器的具有多个输入的光学成像的光学导航系统。 光学导航系统包括触觉界面装置，图像传感器和处理器。 触觉界面装置便于导航输入。 图像传感器间歇地产生触觉界面装置的表面的图像和接触导航表面的图像。 图像传感器还生成除了接触导航表面的图像之外的触觉界面装置的表面的图像。 处理器耦合到图像传感器。 处理器基于触觉界面装置的图像产生第一导航信号，并且基于接触导航表面的图像生成第二导航信号。