Low-cost absolute linear optical encoder
    1.
    发明授权
    Low-cost absolute linear optical encoder 有权
    低成本绝对线性光学编码器

    公开(公告)号:US07180430B2

    公开(公告)日:2007-02-20

    申请号:US10979280

    申请日:2004-11-01

    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。

    Optical encoder
    2.
    发明授权
    Optical encoder 有权
    光学编码器

    公开(公告)号:US07244928B2

    公开(公告)日:2007-07-17

    申请号:US11031280

    申请日:2005-01-07

    IPC分类号: G01D5/34

    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。

    Optical encoder
    3.
    发明授权
    Optical encoder 失效
    光学编码器

    公开(公告)号:US07449677B2

    公开(公告)日:2008-11-11

    申请号:US11757826

    申请日:2007-06-04

    IPC分类号: G01D5/34

    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。

    Reflective encoder with three-dimensional code carrier
    4.
    发明授权
    Reflective encoder with three-dimensional code carrier 失效
    具有三维码载体的反光编码器

    公开(公告)号:US07358481B2

    公开(公告)日:2008-04-15

    申请号:US11369287

    申请日:2006-03-06

    IPC分类号: G01D5/34 G01B11/14

    CPC分类号: G01D5/34707 G01D5/285

    摘要: An encoder having a code pattern on a carrier and an emitter detector module is disclosed. The code pattern includes alternating reflective and opaque regions on a carrier that includes a planar surface. The emitter-detector module includes a light source that generates light and directs a portion of the generated light at the first side of the carrier and a first detector that detects light reflected from one of the reflective regions. The reflective regions include a three-dimensional element for directing light from the light source onto the first detector. The element has a surface that is inclined at an oblique angle with respect to the planar surface. The code pattern moves with respect to the emitter-detector module. The three-dimensional element can include a reflective imaging element that images the light source onto a surface of the first detector.

    摘要翻译: 公开了一种在载体上具有代码图案的编码器和发射器检测器模块。 代码图案包括在包括平面表面的载体上的交替的反射和不透明区域。 发射极检测器模块包括产生光并引导在载体的第一侧的所产生的光的一部分的光源和检测从反射区域之一反射的光的第一检测器。 反射区域包括用于将来自光源的光引导到第一检测器上的三维元件。 元件具有相对于平面倾斜倾斜的表面。 编码模式相对于发射极检测器模块移动。 三维元件可以包括将光源成像到第一检测器的表面上的反射成像元件。

    System and method for optical encoding on two opposed surfaces of a pattern medium
    5.
    发明授权
    System and method for optical encoding on two opposed surfaces of a pattern medium 失效
    用于在图案介质的两个相对表面上的光学编码的系统和方法

    公开(公告)号:US07348545B2

    公开(公告)日:2008-03-25

    申请号:US11155961

    申请日:2005-06-17

    IPC分类号: G01D5/34 G01B11/14

    CPC分类号: G01D5/34707 G01D5/34

    摘要: An optical encoder system is disclosed with a single pattern medium having a first coded pattern disposed on the first side, a second coded pattern disposed on the second side, a first optical encoder disposed toward the first side, and a second optical encoder disposed toward the second side. An optical encoder device is disclosed with a first coded pattern disposed on the first side, and a second coded pattern disposed on the second side. There is disclosed a method for using an optical encoder device to obtain information related to a motor which includes the steps of illuminating a first coded pattern disposed on a first side of a pattern medium, illuminating a second coded pattern disposed on a second side of the pattern medium, detecting light reflected from the first side, detecting light reflected from the second side, and analyzing the reflected light.

    摘要翻译: 公开了一种光学编码器系统,其具有设置在第一侧上的第一编码图案的单一图案介质,设置在第二侧的第二编码图案,朝向第一侧设置的第一光学编码器, 第二面。 公开了一种光学编码器装置,其具有设置在第一侧上的第一编码图案和设置在第二侧上的第二编码图案。 公开了一种使用光学编码器装置来获得与电动机相关的信息的方法,该方法包括以下步骤:照亮布置在图案介质的第一侧上的第一编码图案,照亮设置在图案介质的第二侧上的第二编码图案 检测从第一侧反射的光,检测从第二侧反射的光并分析反射光。