公开(公告)号：US07449677B2

公开(公告)日：2008-11-11

申请号：US11757826

申请日：2007-06-04

申请人： Kean Foong Ng ,  Sze Kuang Lee ,  Hock Aun Tan ,  Weng Fei Wong ,  Wee Jin Yeap ,  Chee Foo Lum ,  Kok Hing Fo ,  Toshiya Hataguchi ,  Randeep Singh A/L Amarjit

发明人： Kean Foong Ng ,  Sze Kuang Lee ,  Hock Aun Tan ,  Weng Fei Wong ,  Wee Jin Yeap ,  Chee Foo Lum ,  Kok Hing Fo ,  Toshiya Hataguchi ,  Randeep Singh A/L Amarjit

IPC分类号： G01D5/34

CPC分类号： G01D5/34746 ,  G01D5/347 ,  G01D5/34707

摘要： An optical encoder includes a code strip having a first side, a second side, a first track comprising indicia thereon, and a second track comprising indicia thereon. The code strip is moveable along a displacement path with respect to the optical encoder. A light source positioned on the first side of the code strip directs light toward the code strip. A first detector element is positioned on the second side of the code strip and is generally aligned with the first track of the code strip. A second detector element is positioned on the second side of the code strip and is generally aligned with the second track of the code strip. The second detector element is also positioned so that the second detector element is located a spaced distance along the displacement path from the first detector element.

摘要翻译： 光学编码器包括具有第一侧，第二侧，其上包括标记的第一轨道和其上包括标记的第二轨道的码带。 编码条可以沿相对于光学编码器的位移路径移动。 位于代码带的第一侧上的光源将光朝着码条引导。 第一检测器元件位于代码条的第二侧上，并且通常与代码条的第一轨迹对齐。 第二检测器元件位于代码条的第二侧上，并且通常与代码条的第二轨迹对齐。 第二检测器元件也被定位成使得第二检测器元件沿着与第一检测器元件的位移路径间隔开距离。

公开(公告)号：US07279674B2

公开(公告)日：2007-10-09

申请号：US10344836

申请日：2001-08-15

申请人： Kee-Yean Ng ,  Kok-Hing Fo ,  Yee-Loong Chin ,  Chee-Keong Chong ,  Chin-Yun Lee

发明人： Kee-Yean Ng ,  Kok-Hing Fo ,  Yee-Loong Chin ,  Chee-Keong Chong ,  Chin-Yun Lee

IPC分类号： G01D5/34

CPC分类号： G01D5/34715

摘要： An optical encoder module is employed to detect light modulated by a moveable member (e.g., code wheel). The optical encoder includes an emitter having a light-emitting element, and a transparent medium encapsulating the light-emitting element. The transparent medium has a convex aspherical external surface shaped so as to focus light received from the light-emitting element into a substantially collimated beam of light using a single refractive interface for illuminating the movable member. The optical encode module also includes a detector facing the emitter for detecting modulated light of the collimated beam transmitted through the movable member.

摘要翻译： 采用光学编码器模块来检测由可移动构件（例如码轮）调制的光。 光学编码器包括具有发光元件的发射器和封装发光元件的透明介质。 透明介质具有凸形非球面外表面，其形状使得使用单个折射界面将从发光元件接收的光聚焦成基本上准直的光束，用于照亮可动构件。 光学编码模块还包括面向发射器的检测器，用于检测透射通过可动构件的准直光束的调制光。

公开(公告)号：US06653619B2

公开(公告)日：2003-11-25

申请号：US09953781

申请日：2001-09-12

申请人： Yee Loong Chin ,  Kok Hing Fo ,  Hoo Chong Wong ,  Eric James Barton

发明人： Yee Loong Chin ,  Kok Hing Fo ,  Hoo Chong Wong ,  Eric James Barton

IPC分类号： G01D534

CPC分类号： G01D5/34715

摘要： An optical motion encoder for translation of movement information into a digital output. The optical encoder includes an optical member having a parabolic reflecting surface and a planar surface with a code pattern printed thereon. The light rays received by the parabolic reflecting surface from a light source positioned on the axis of symmetry of the parabolic reflecting surface are reflected as parallel light rays through the planar surface to be modulated by the code pattern and detected by a light detector. In this way, both, the collimator and the code wheel or code strip of prior art optical encoders are represented by a single optical member.

摘要翻译： 一种用于将运动信息转换为数字输出的光学运动编码器。 光学编码器包括具有抛物面反射表面的光学构件和其上印有编码图案的平面表面。 抛物线反射面从位于抛物线反射面对称轴上的光源接收的光线被平行光线反射，通过平面表面被代码图形调制并由光检测器检测。 以这种方式，现有技术的光学编码器的准直器和码盘或码带都由单个光学构件表示。

公开(公告)号：US07472979B2

公开(公告)日：2009-01-06

申请号：US11188540

申请日：2005-07-25

申请人： Kok Hing Fo ,  Kee Yean Ng ,  Chee Keong Chong ,  Kean Loo Keh ,  Herbert W. Loesch

发明人： Kok Hing Fo ,  Kee Yean Ng ,  Chee Keong Chong ,  Kean Loo Keh ,  Herbert W. Loesch

IPC分类号： B41J29/393

CPC分类号： B41J19/205 ,  G01D5/3473

摘要： In one embodiment, an optical encoder device is provided with an optical encoder to detect codewheel/codestrip positions; a housing to accommodate the optical encoder; a first tapered guidepost protruding from a sidewall of the optical encoder housing; and a second tapered guidepost protruding from the sidewall of the optical encoder housing and extending substantially parallel to the first tapered guidepost. Other embodiments are also disclosed.

摘要翻译： 在一个实施例中，光学编码器装置设置有光学编码器以检测码字/码头位置; 用于容纳光学编码器的外壳; 从光学编码器壳体的侧壁突出的第一锥形导轨; 以及从光学编码器壳体的侧壁突出并基本上平行于第一锥形导轨延伸的第二锥形导轨。 还公开了其他实施例。

公开(公告)号：US06946980B2

公开(公告)日：2005-09-20

申请号：US10440846

申请日：2003-05-19

申请人： Kok Hing Fo ,  Yee Loong Chin ,  Hoo Chong Wong

发明人： Kok Hing Fo ,  Yee Loong Chin ,  Hoo Chong Wong

IPC分类号： G06F3/033 ,  G05G9/047 ,  G06F3/038 ,  H03K17/968 ,  H04M1/247 ,  H03M11/00

CPC分类号： H03K17/968 ,  G05G2009/04759 ,  G06F3/03548

摘要： An input device comprising a fixed light source, a plurality of light detectors surrounding the light source, and a member comprising reflective surface portions slidably mounted above the light source. When the member is slid from a neutral position to one of a plurality of activating position, light from the light source is reflected by one of the reflective surface portions directly from the light source to an associated light detector.

摘要翻译： 包括固定光源，围绕光源的多个光检测器和包括可滑动地安装在光源上方的反射表面部分的部件的输入装置。 当构件从中立位置滑动到多个启动位置中的一个时，来自光源的光被反射表面部分之一直接从光源反射到相关联的光检测器。

公开(公告)号：US20050068773A1

公开(公告)日：2005-03-31

申请号：US10344836

申请日：2001-08-15

申请人： Kee-Yean Ng ,  Kok-Hing Fo ,  Yee-Loong Chin ,  Chee-Keong Chong ,  Chi-Yun Lee

发明人： Kee-Yean Ng ,  Kok-Hing Fo ,  Yee-Loong Chin ,  Chee-Keong Chong ,  Chi-Yun Lee

IPC分类号： G01D5/347 ,  F21V33/00

CPC分类号： G01D5/34715

摘要： An optical encoder module is employed to detect light modulated by a moveable member (e.g., code wheel). The optical encoder includes an emitter having a light-emitting element, and a transparent medium encapsulating the light-emitting element. The transparent medium has a convex aspherical external surface shaped so as to focus light received from the light-emitting element into a substantially collimated beam of light using a single refractive interface for illuminating the movable member. The optical encode module also includes a detector facing the emitter for detecting modulated light of the collimated beam transmitted through the movable member.

摘要翻译： 采用光学编码器模块来检测由可移动构件（例如码轮）调制的光。 光学编码器包括具有发光元件的发射器和封装发光元件的透明介质。 透明介质具有凸形非球面外表面，其形状使得使用单个折射界面将从发光元件接收的光聚焦成基本上准直的光束，用于照亮可动构件。 光学编码模块还包括面向发射器的检测器，用于检测透射通过可动构件的准直光束的调制光。

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：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：US06975515B2

公开(公告)日：2005-12-13

申请号：US10344587

申请日：2001-08-15

申请人： Kee-Yean Ng ,  Kok-Hing Fo

发明人： Kee-Yean Ng ,  Kok-Hing Fo

IPC分类号： H01L31/16 ,  H01L31/167 ,  H02G3/08 ,  H05K5/00 ,  H05K5/04 ,  H05K5/06

CPC分类号： H01L31/16 ,  H01L31/167

摘要： An optical encoder module includes a housing that includes at least one recess having an open end and an opposite closed end, and an electrical component accommodated within the recess. A first locking member is formed on the electrical component and a second locking member is formed in the housing. The first and second locking members are engaged with each other for locking the electrical component, when inserted into said recess, into a locking position. At least one resiliently compressible protrusion is provided between the electrical component and the closed end of the recess so as to be resiliently compressed therebetween into its compressed state when the electrical component is locked in the recess in its locking position.

摘要翻译： 光学编码器模块包括壳体，该壳体包括具有开口端和相对闭合端的至少一个凹部，以及容纳在凹部内的电气部件。 第一锁定构件形成在电气部件上，并且第二锁定构件形成在壳体中。 当将第一和第二锁定构件插入所述凹槽中时，第一和第二锁定构件彼此接合以将电气部件锁定在锁定位置。 至少一个可弹性压缩的突起设置在电气部件和凹部的封闭端之间，以便当电气部件在其锁定位置中锁定在凹部中时被弹性地压缩到其压缩状态。

公开(公告)号：US06966623B2

公开(公告)日：2005-11-22

申请号：US10467614

申请日：2002-12-16

申请人： Kok Hing Fo ,  Kee Yean Ng ,  Chee Keong Chong ,  Kean Loo Keh ,  Herbert W. Loesch

发明人： Kok Hing Fo ,  Kee Yean Ng ,  Chee Keong Chong ,  Kean Loo Keh ,  Herbert W. Loesch

IPC分类号： B41J19/20 ,  B41J29/393 ,  G01D5/34 ,  G01D5/347

CPC分类号： B41J19/205 ,  G01D5/3473

摘要： An optical encoder device is provided with an optical encoder for detecting codewheel/codestrip positions, an optical encoder housing for accommodating the optical encoder, a first tapered guidepost protruding from a sidewall of the optical encoder housing, the first guidepost having a star-shaped cross-section and being arranged adjacent to the optical encoder, and a second tapered guidepost protruding form the sidewall of the optical encoder housing and extending substantially parallel to the first guidepost, the second guidepost having a diamond-shaped cross-section and being arranged remote from the optical encoder.

摘要翻译： 光学编码器装置设置有用于检测码字/码头位置的光学编码器，用于容纳光学编码器的光学编码器外壳，从光学编码器外壳的侧壁突出的第一个锥形导轨，第一个导轨具有星形十字 并且被布置成与光学编码器相邻，并且第二锥形导轨从光学编码器外壳的侧壁突出并基本上平行于第一导轨延伸，第二导轨具有菱形横截面并远离 光学编码器。