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：US20060092047A1

公开(公告)日：2006-05-04

申请号：US10979280

申请日：2004-11-01

申请人： Kean Ng ,  Hock Tan ,  Moon Low ,  Yee Chin

发明人： Kean Ng ,  Hock Tan ,  Moon Low ,  Yee Chin

IPC分类号： H03M7/00

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：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：US20070187582A1

公开(公告)日：2007-08-16

申请号：US11356563

申请日：2006-02-16

申请人： Yee Chin ,  Kean Ng

发明人： Yee Chin ,  Kean 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。