Phase grating, its fabricating method, optical encoder, motor using the optical encoder, and robot using the motor
    2.
    发明公开
    Phase grating, its fabricating method, optical encoder, motor using the optical encoder, and robot using the motor 失效
    相位光栅,其制备,以及光学编码器,电机与这样的编码器和机器人具有这样的电动机

    公开(公告)号:EP0752599A1

    公开(公告)日:1997-01-08

    申请号:EP96109062.8

    申请日:1996-06-05

    IPC分类号: G02B5/18

    摘要: A phase grating has a concave part of rectangular shape type substantially, of which grating depth is deeper in a specific range than depth d' calculated in a formula |n - n 0 | x (p - d'/e)/p x d' = (λ/2) x (1 + 2m) (where m = 0,±1,±2, ...) in terms of center wavelength λ of light having partial interference to be diffracted by the phase grating, pitch length p of the phase grating, refractive index n of base material of the phase grating, refractive index n 0 of medium surrounding the phase grating, and shape ratio e as the ratio of grating depth to width of slope of the concave part.

    摘要翻译: 相位光栅具有矩形形状型的凹部基本上,哪光栅深度是在具有部分干涉的光的中心波长为λ换算公式在计算出的特定的范围比深度d”更深由被衍射 相位光栅,相位光栅的间距长度p,相位光栅,相位光栅周围介质的折射率n0,以及形态比e为光栅深度的比率之基料的折射率n与凹部斜面宽度 ,

    Position detecting element and range sensor
    4.
    发明公开
    Position detecting element and range sensor 失效
    定位元件和距离传感器

    公开(公告)号:EP0837301A3

    公开(公告)日:1999-12-29

    申请号:EP97117986.6

    申请日:1997-10-17

    IPC分类号: G01C3/08

    CPC分类号: G01C3/085 G01B11/026

    摘要: A position detecting element that enables a position to be detected at high speed and high precision, and a range sensor using the same. The position detecting element is provided with a PIN photodiode array (1) having n segments and a parallel arithmetic processing portion (2) that calculates the segment having maximum intensity by comparing n outputs from the segments of the PIN photodiode array (1). The range sensor includes a light source by which the object to be measured is irradiated by optical beam, a lens that gathers rays of the reflected light from the surface of the object to be measured and the position detecting element mentioned above that detects the position of the light gathered by the lens.

    Position detecting element and range sensor
    5.
    发明公开
    Position detecting element and range sensor 失效
    Positionsbestimmungselement und Abstandssensor

    公开(公告)号:EP0837301A2

    公开(公告)日:1998-04-22

    申请号:EP97117986.6

    申请日:1997-10-17

    IPC分类号: G01C3/08

    CPC分类号: G01C3/085 G01B11/026

    摘要: A position detecting element that enables a position to be detected at high speed and high precision, and a range sensor using the same. The position detecting element is provided with a PIN photodiode array (1) having n segments and a parallel arithmetic processing portion (2) that calculates the segment having maximum intensity by comparing n outputs from the segments of the PIN photodiode array (1). The range sensor includes a light source by which the object to be measured is irradiated by optical beam, a lens that gathers rays of the reflected light from the surface of the object to be measured and the position detecting element mentioned above that detects the position of the light gathered by the lens.

    摘要翻译: 能够高速高精度地检测位置的位置检测元件和使用该位置检测元件的距离传感器。 位置检测元件设置有具有n个段的PIN光电二极管阵列(1)和通过比较PIN光电二极管阵列(1)的各个部分的n个输出来计算具有最大强度的段的并行运算处理部分(2)。 距离传感器包括被测量对象被光束照射的光源,从待测对象物的表面收集反射光的光线的透镜和上述检测到的位置的位置检测元件 透镜聚光。