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    Encoder scale, manufacturing method for encoder scale, and encoder
    1.
    发明授权
    Encoder scale, manufacturing method for encoder scale, and encoder 有权

    公开(公告)号：US10955265B2

    公开(公告)日：2021-03-23

    申请号：US16173023

    申请日：2018-10-29

    申请人： Seiko Epson Corporation

    发明人： Akio Konishi

    IPC分类号： G01D5/34 ,  G01D5/347 ,  G01D5/353 ,  G01D5/36

    摘要： An encoder scale includes a tabular base material and an optical pattern provided above one surface of the base material, a first region and a second region being disposed side by side above the optical pattern. The first region includes a resin layer disposed above the base material and including photosensitive resin and a metal film disposed above the resin layer and formed of a metal material. The surface of the first region is configured mainly by a first surface having a normal line in the thickness direction of the base material. The surface of the second region is configured mainly by a second surface inclined with respect to the first surface.

    ADAPTIVE REFERENCE MARK DETECTION PROCESS
    2.
    发明申请
    ADAPTIVE REFERENCE MARK DETECTION PROCESS 审中-公开

    公开(公告)号：US20190301900A1

    公开(公告)日：2019-10-03

    申请号：US16301603

    申请日：2017-05-17

    申请人： RENISHAW PLC

    发明人： Colin Keith HOWLEY ,  Simon Eliot McADAM

    IPC分类号： G01D5/36 ,  G01D5/347 ,  G01D18/00

    摘要： An encoder apparatus comprising a readhead moveable relative to a scale, configured to produce a position signal, as well as to produce a reference mark signal when the readhead passes over a reference mark on the scale, configured such that the process for producing the reference mark signal adapts automatically in response to a change in circumstance so as to at least pursue maintenance of a given relationship between the position and reference mark signals.

    Reference mark detector arrangement
    4.
    发明授权
    Reference mark detector arrangement 有权

    公开(公告)号：US10281301B2

    公开(公告)日：2019-05-07

    申请号：US15024507

    申请日：2014-09-26

    申请人： RENISHAW PLC

    发明人： Jason Kempton Slack

    IPC分类号： G01D5/38 ,  G01D5/347 ,  G01D5/36

    摘要： An encoder apparatus comprising a scale comprising scale features in at least one track which define a series of incremental scale marks and at least one reference mark and a readhead comprising a light source, a diffraction grating, an incremental photodetector and a reference photodetector comprising at least two detector channels. The features defining the at least one reference mark are configured such that the at least one reference mark as resolvable by each of the at least two detector channels comprises a single feature. The optical arrangement of the encoder is such that a non-imaged representation of at least the track in which the at least one reference mark is contained falls onto the detector.

    Encoder, motor with encoder, and servo system
    7.
    发明授权
    Encoder, motor with encoder, and servo system 有权
    编码器，带编码器的电机和伺服系统

    公开(公告)号：US09436166B2

    公开(公告)日：2016-09-06

    申请号：US14532007

    申请日：2014-11-04

    申请人： KABUSHIKI KAISHA YASKAWA DENKI

    发明人： Yasushi Yoshida ,  Yasuhiro Matsutani ,  Shiro Yoshidomi ,  Hiroshi Takada ,  Yuji Arinaga ,  Ikuma Murokita ,  Masanobu Harada ,  Hiroki Kondo

    IPC分类号： G01D5/347 ,  G01D5/245 ,  G05B1/04 ,  G01D5/36

    CPC分类号： G05B1/04 ,  G01D5/34792 ,  G01D5/36 ,  H02K11/22

    摘要： An encoder includes a plurality of slit tracks, a point light source, a first to third light-receiving arrays. The plurality of slit tracks respectively comprises a plurality of reflection slits. The point light source emits diffusion light to the plurality of slit tracks. The first light-receiving array receives light reflected by the slit track comprising an incremental pattern. The second light-receiving array receives light reflected by the slit track comprising an incremental pattern longer in pitch than other incremental patterns, and is disposed at a position on a side of a direction where the point light source is disposed, than the first light-receiving array, The third light-receiving array receives light reflected by the slit track comprising an absolute pattern, and is disposed at a position on a side of a direction where the point light source is disposed, than the first light-receiving array.

    摘要翻译： 编码器包括多个狭缝轨道，点光源，第一至第三光接收阵列。 多个狭缝轨道分别包括多个反射狭缝。 点光源向多个狭缝轨道发射扩散光。 第一光接收阵列接收由包括增量图案的狭缝轨迹反射的光。 第二光接收阵列接收由狭缝轨道反射的光，其包括以比其它增量图案更长的间距的增量图案，并且被布置在比所述第一光接收阵列的设置有点光源的方向的一侧上的位置， 接收阵列，第三受光阵列接收由包括绝对图案的狭缝轨迹反射的光，并且设置在比第一光接收阵列更靠近点光源的方向的一侧的位置。

    Method and apparatus for generating a synchronization signal in a scanning system
    8.
    发明授权
    Method and apparatus for generating a synchronization signal in a scanning system 有权
    用于在扫描系统中产生同步信号的方法和装置

    公开(公告)号：US09104928B2

    公开(公告)日：2015-08-11

    申请号：US13519384

    申请日：2009-12-30

    申请人： Gabriele Corrain

    发明人： Gabriele Corrain

    IPC分类号： G01D5/36 ,  G06K7/10 ,  G02B26/12

    CPC分类号： G06K7/10623 ,  G02B26/12

    摘要： A scanning system includes a synchronizing arrangement including a light guide and a photosensor. The light guide directs a light beam to a photosensor, wherein light is deflected by one or more moving elements in the scanning system into a scanning region. The light guide has a light entry region, a reflecting region for reflecting light entering the light entry region and one or more light exit faces, so that light entering the light guide through the light entry region is at least partly reflected in the reflecting region and exits through one of the exit faces. The shape and the properties of the light guide are such that for two pencils of light rays, a first pencil of light rays is spaced from the second pencil and is non-overlapping with said second pencil of light rays.

    摘要翻译： 扫描系统包括包括光导和光传感器的同步装置。 光导将光束引导到光传感器，其中光被扫描系统中的一个或多个移动元件偏转成扫描区域。 导光体具有光入射区域，反射进入光入射区域的光的反射区域和一个或多个光出射面，使得通过光入射区域进入导光体的光在反射区域中至少部分地反射， 通过其中一个出口面退出。 导光体的形状和特性使得对于两根光线，第一根光线与第二根铅笔间隔开，并与第二根光线不重叠。

    Method of measuring irradiation position shift and focus shift in optical scanning apparatus
    9.
    发明授权
    Method of measuring irradiation position shift and focus shift in optical scanning apparatus 失效
    测量光学扫描装置中的照射位置偏移和聚焦偏移的方法

    公开(公告)号：US08755094B2

    公开(公告)日：2014-06-17

    申请号：US13454289

    申请日：2012-04-24

    申请人： Yasuaki Otoguro

    发明人： Yasuaki Otoguro

    IPC分类号： H04N1/04 ,  H04N1/23 ,  G06K15/10 ,  H04N1/60 ,  G03F3/08 ,  G02B13/16 ,  G01B9/00 ,  B41J27/00 ,  G01D5/36

    CPC分类号： G02B26/128 ,  G02B7/343 ,  H04N1/1135 ,  H04N2201/04744 ,  H04N2201/04748

    摘要： A pupil splitting lens that splits a pupil of a light beam from a deflector into a plurality of light beams in a main scanning direction of the deflector and a pupil splitting lens that splits the light beam into a plurality of light beams in a sub-scanning direction are disposed relative to a light detection element. The light detection element detects image forming positions of the four light beams formed as a result of the splitting by the plurality of pupil splitting lenses. A CPU determines the amount of focus shift and the amount of image forming position shift from these four image forming positions.

    摘要翻译： 一种瞳孔分裂透镜，其将来自偏转器的光束的光瞳沿偏转器的主扫描方向分成多个光束，以及瞳孔分割透镜，其将光束分割成多个次光束 方向相对于光检测元件设置。 光检测元件检测由多个瞳孔分裂透镜分裂的结果形成的四个光束的图像形成位置。 CPU从这四个图像形成位置确定聚焦偏移量和图像形成位置偏移量。