公开(公告)号：US20070241271A1

公开(公告)日：2007-10-18

申请号：US11404111

申请日：2006-04-14

申请人： Yee Chin ,  Kean Ng ,  Weng Wong

发明人： Yee Chin ,  Kean Ng ,  Weng Wong

IPC分类号： G01D5/34

CPC分类号： G01D5/34746

摘要： A reflection-based optical encoding apparatus for the detection of position and/or motion of a mechanical device is described. In various embodiments, such a reflection-based optical encoding apparatus can include an encoder housing having one or more portions, a light-emitting source embedded within the encoder housing, and a light-detecting sensor embedded within the encoder housing, wherein the encoder housing includes one or more optical elements configured to enable light generated by the light-emitting source to reflect on a moveable object placed in close proximity of the encoder housing and subsequently be received by the light-detecting sensor to enable the reflection-based optical encoding apparatus to sense at least one of position and motion of the moveable object, and wherein the reflection-based optical encoding apparatus includes no codescale within the light path of the light-emitting source and the light-detecting sensor.

摘要翻译： 描述了用于检测机械装置的位置和/或运动的基于反射的光学编码装置。 在各种实施例中，这种基于反射的光编码设备可以包括具有一个或多个部分的编码器外壳，嵌入在编码器外壳内的发光源和嵌入在编码器外壳内的光检测传感器，其中编码器外壳 包括一个或多个光学元件，其被配置为使得由所述发光源产生的光能够反射在靠近所述编码器外壳放置的可移动物体上，并且随后被所述光检测传感器接收，以使得能够基于反射的光编码设备 以感测可移动物体的位置和运动中的至少一个，并且其中基于反射的光编码装置在发光源和光检测传感器的光路内不包括码。

公开(公告)号：US20070221831A1

公开(公告)日：2007-09-27

申请号：US11757826

申请日：2007-06-04

申请人： Kean Ng ,  Sze Lee ,  Hock Tan ,  Weng Wong ,  Wee Yeap ,  Chee Lum ,  Kok Fo ,  Toshiya Hataguchi ,  Randeep Amarjit

发明人： Kean Ng ,  Sze Lee ,  Hock Tan ,  Weng Wong ,  Wee Yeap ,  Chee Lum ,  Kok Fo ,  Toshiya Hataguchi ,  Randeep 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：US20060151686A1

公开(公告)日：2006-07-13

申请号：US11031280

申请日：2005-01-07

申请人： Kean Ng ,  Sze Lee ,  Hock Tan ,  Weng Wong ,  Wee Yeap ,  Chee Lum ,  Kok Fo ,  Toshiya Hataguchi ,  Randeep Singh Singh

发明人： Kean Ng ,  Sze Lee ,  Hock Tan ,  Weng Wong ,  Wee Yeap ,  Chee Lum ,  Kok Fo ,  Toshiya Hataguchi ,  Randeep Singh Singh

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：US20060097051A1

公开(公告)日：2006-05-11

申请号：US10985701

申请日：2004-11-10

申请人： Siang Foo ,  Weng Wong ,  Yee Chin

发明人： Siang Foo ,  Weng Wong ,  Yee Chin

IPC分类号： G06K7/10

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：US20070246645A1

公开(公告)日：2007-10-25

申请号：US11408902

申请日：2006-04-21

申请人： Weng Wong ,  Yee Chin ,  Siang Foo

发明人： Weng Wong ,  Yee Chin ,  Siang Foo

IPC分类号： G01D5/34

CPC分类号： G01D5/34707

摘要： An optical encoder includes an emitter, a first lens, a detector, a second lens, and a protrusion. The emitter emits light which is directed by the first lens to a code scale for reflection. The reflected light is directed by the second lens to the detector. The detector detects the reflected light from the code scale. The protrusion is between the first lens and the second lens. The protrusion defines at least one surface that refracts stray light from the emitter away from the detector. Accordingly, the stray light does not reach the detector; thus the detector can operate more effectively.

摘要翻译： 光学编码器包括发射器，第一透镜，检测器，第二透镜和突起。 发射器将由第一透镜引导的光发射到用于反射的代码标尺。 反射光被第二透镜引导到检测器。 检测器检测来自代码标尺的反射光。 该突起位于第一透镜和第二透镜之间。 所述突起限定至少一个表面，其将来自发射器的杂散光折射离开检测器。 因此，杂散光未到达检测器; 因此检测器可以更有效地操作。

公开(公告)号：US20070241943A1

公开(公告)日：2007-10-18

申请号：US11404110

申请日：2006-04-14

申请人： Teong Tan ,  Premkumar Ramachandr ,  Yee Chin ,  Cheng Tan ,  Weng Wong

发明人： Teong Tan ,  Premkumar Ramachandr ,  Yee Chin ,  Cheng Tan ,  Weng Wong

IPC分类号： H03M7/00

CPC分类号： G01D5/34715

摘要： A reflection-based optical encoding apparatus for the detection of position and/or motion of a mechanical device includes an encoding medium having at least a first reflective portion, and an encoder housing having a light-emitting source and a light-detecting sensor embedded within, the encoder housing being placed in proximity to the encoding medium such that a functional light path can be established from the light-emitting source to the light-detecting sensor via the first reflective portion of the encoding medium. The encoder housing includes a first flat facet positioned between the light-emitting source and the encoding medium, the first flat facet having a first angle relative to a common geometric plane such that light passing from the light-emitting source to the encoding medium is refracted along a first angled path in a manner that the refracted light strikes a desired location of the encoding medium.

摘要翻译： 用于检测机械装置的位置和/或运动的基于反射的光编码装置包括具有至少第一反射部分的编码介质和具有嵌入在其中的发光源和光检测传感器的编码器壳体 编码器壳体被放置在编码介质附近，使得可以通过编码介质的第一反射部分从发光源到光检测传感器建立功能光路。 编码器壳体包括位于发光源和编码介质之间的第一平面，第一平面相对于共同的几何平面具有第一角度，使得从发光源通向编码介质的光被折射 沿着第一有角度的路径以折射光照射到编码介质的期望位置的方式。

公开(公告)号：US20070090282A1

公开(公告)日：2007-04-26

申请号：US11259419

申请日：2005-10-26

申请人： Yee Chin ,  Siang Foo ,  Weng Wong ,  Saiful Saidan ,  Cheng Tan ,  Wee Yeap

发明人： Yee Chin ,  Siang Foo ,  Weng Wong ,  Saiful Saidan ,  Cheng Tan ,  Wee 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：US20070120049A1

公开(公告)日：2007-05-31

申请号：US11287947

申请日：2005-11-28

申请人： Weng Wong ,  Chee Lum ,  Siang Foo ,  Song Ooi ,  Keen Leong ,  Yik Soo ,  Sai Hung ,  Gin Tan

发明人： Weng Wong ,  Chee Lum ,  Siang Foo ,  Song Ooi ,  Keen Leong ,  Yik Soo ,  Sai Hung ,  Gin Tan

IPC分类号： G01D5/34

CPC分类号： G01D5/34707

摘要： An optical encoder includes an optical encoder pattern of alternating light elements and dark elements, and an optical unit, including an optical emitter providing light to the encoder pattern, and an optical sensor including a photo-detector receiving the light from the optical encoder pattern and in response thereto outputting a sinusoidal signal indicating relative movement between the optical sensor and the encoder pattern. In one embodiment, the photo-detector has a diamond shape, a modified-diamond shape, or an hourglass shape. In another embodiment, at least one of the light elements and the dark elements of the optical encoder pattern has a diamond shape, a modified-diamond shape, or an hourglass shape.

摘要翻译： 光学编码器包括交替的光元件和暗元件的光学编码器图案，以及包括向编码器图案提供光的光学发射器的光学单元和包括接收来自光学编码器图案的光的光电检测器的光学传感器，以及 响应于此，输出指示光学传感器和编码器图案之间的相对移动的正弦信号。 在一个实施例中，光电检测器具有菱形形状，改性菱形形状或沙漏形状。 在另一个实施例中，光学编码器图案的光元件和暗元件中的至少一个具有菱形形状，修饰菱形形状或沙漏形状。

公开(公告)号：US20060192008A1

公开(公告)日：2006-08-31

申请号：US11066919

申请日：2005-02-25

申请人： Weng Wong ,  Chee Lum ,  Siow Tan

发明人： Weng Wong ,  Chee Lum ,  Siow Tan

IPC分类号： G06K7/10

CPC分类号： G01D5/34715

摘要： A sensor head for sensing light modulated by a moveable member, such as a code wheel or code strip, in an optical encoder. The sensor head has at least one monitor optical sensor and a primary optical sensor positioned to receive light modulated by a modulation track on the moveable member. The monitor optical sensor provides a monitor signal that is compared in a signal comparator to the output from the primary optical sensor to detect light at the primary sensor.

摘要翻译： 用于感测由光学编码器中的可移动构件（例如码轮或码带）调制的光的传感器头。 传感器头具有至少一个监视器光学传感器和一个主要光学传感器，其被定位成接收由可移动构件上的调制轨迹调制的光。 监视器光学传感器提供在信号比较器中与主光学传感器的输出进行比较以检测主传感器的光的监视信号。

公开(公告)号：US20070120048A1

公开(公告)日：2007-05-31

申请号：US11287178

申请日：2005-11-25

申请人： Chee Lum ,  Weng Wong ,  Siang Foo

发明人： Chee Lum ,  Weng Wong ,  Siang Foo

IPC分类号： G01D5/34

CPC分类号： G01D5/34707 ,  G01D5/34

摘要： An encoder having a carrier that passes through an opening in a mounting body is disclosed. The carrier includes an encoding region having a plurality of clear and opaque regions, the carrier having first and second surfaces. The clear and opaque regions of the carrier pass through the opening in the mounting body when the carrier moves relative to the mounting body. A light emitter generates a light signal that passes through the carrier, the light emitter being located adjacent to the first side of the carrier and separated therefrom. A light reflector is attached to the mounting body at a position such that the light reflector directs the light signal through the second surface of the carrier where a photodetector measures light leaving the first surface of the carrier when one of the clear regions passes through the light signal.

摘要翻译： 公开了一种具有通过安装体中的开口的载体的编码器。 载体包括具有多个透明和不透明区域的编码区域，载体具有第一和第二表面。 当载体相对于安装体移动时，载体的透明和不透明区域穿过安装体中的开口。 光发射器产生穿过载体的光信号，光发射器位于与载体的第一侧相邻并与其分离的位置。 光反射器在一个位置附接到安装体，使得光反射器将光信号引导通过载体的第二表面，其中当透明区域中的一个透过光时，光电检测器测量离开载体的第一表面的光 信号。