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    OPTICAL POSITION SENSOR
    42.
    发明公开
    OPTICAL POSITION SENSOR 审中-公开
    OPTISCHER位置传感器

    公开(公告)号：EP1030160A1

    公开(公告)日：2000-08-23

    申请号：EP98942994.9

    申请日：1998-09-16

    申请人： MITSUBISHI DENKI KABUSHIKI KAISHA ,  Forschungszentrum Karlsruhe GmbH

    发明人： NAKAJIMA, Hajime, Mitsubishi Denki K. K. ,  RUTHER, Patrick, Forschungszentrum Karlsruhe GmbH

    IPC分类号： G01B11/00

    CPC分类号： G01S7/481 ,  G01B11/026 ,  G01S7/491

    摘要： An optical position detector having an excellent detection characteristic at long measurement distance is achieved by a structure provided with an input optical fiber 2, output optical fibers 3, 4, a slab light guide which is disposed on a substrate 1 and has a branched light guide 14, a first cylindrical lens 11 which converts an optical path of light emerging from the slab light guide 6 and which condenses said light on a surface to be detected, and a second cylindrical lens 12 which converts an optical path of light reflected from said surface to be detected and which guides said light to said slab light guide 6.

    摘要翻译： 通过设置有输入光纤2，输出光纤3,4，平板导光体的结构，实现了在长测量距离处具有优异检测特性的光学位置检测器，该平板导光体设置在基板1上并具有分支导光体 14是第一柱面透镜11，其将从平板光导6出射的光的光路转换并将所述光聚光在待检测的表面上;第二柱面透镜12，其将从所述表面反射的光的光路转换 被检测并且将所述光引导到所述平板光导6

    Chromatic optical ranging sensor
    43.
    发明公开
    Chromatic optical ranging sensor 失效
    Chromatischer optischer传感器zum Entfernungsmessen

    公开(公告)号：EP0997748A2

    公开(公告)日：2000-05-03

    申请号：EP99126196.7

    申请日：1996-07-20

    申请人： Robotic Vision Systems Inc.

    发明人： Stern, Howard ,  Metzger, Robert J.

    IPC分类号： G01S17/32

    CPC分类号： G01S17/08 ,  G01S7/491 ,  G01S17/02 ,  G01S17/46 ,  G01S17/87 ,  G01S17/89

    摘要： A chromatic optical ranging sensor, comprising:

    means for focusing a source beam (30) of optical energy onto a target (6) from a known location, whereby different wavelengths of said source beam are focused at different distances from said known location;
    means for collecting a reflected beam from said target (6);
    means for detecting and interpolating said reflected beam to determine a distance of said target from said known location,
    means for separating said reflected beam into a focused portion and a unfocused portion; and
    means for determining a ratio of an amplitude of said focused portion to an amplitude of said unfocused portion.

    摘要翻译： 一种彩色光学测距传感器，包括：用于将光能源（30）从已知位置聚焦到目标（6）上的装置，由此所述源光束的不同波长聚焦在与所述已知位置不同的距离处; 用于从所述目标（6）收集反射光束的装置; 用于检测和内插所述反射光束以确定所述目标与所述已知位置的距离的装置，用于将所述反射光束分离成聚焦部分和未聚焦部分的装置; 以及用于确定所述聚焦部分的幅度与所述未聚焦部分的幅度之比的装置。

    Device for obtaining distance information from an object by instantaneously illuminating the object by a light beam
    46.
    发明公开
    Device for obtaining distance information from an object by instantaneously illuminating the object by a light beam 失效
    装置用于通过将光束获得对象的距离信息，由对象的瞬间的照明装置。

    公开(公告)号：EP0415405A2

    公开(公告)日：1991-03-06

    申请号：EP90116646.2

    申请日：1990-08-30

    申请人： NEC CORPORATION

    发明人： Tajima, Johji, c/o NEC Corporation ,  Sakamoto, Shizuo, c/o NEC Corporation

    IPC分类号： G01S7/48

    CPC分类号： G01S7/491 ,  G01S17/46

    摘要： For obtaining distance information between an image pickup device (10) and an object (11) illuminated by a monochromatic beam selected by a diffraction grating (18) from an optical beam generated by an optical beam generator (27), a distance information obtaining device comprises an activating device (33) for simultaneously activating the beam generator and the image pickup device a predetermined time duration so that the optical beam generator generates an optical beam while activated and that the image pickup device picks up an optical image of the object to produce a picture signal while activated. A processing unit (21) processes the picture signal into a processed signal representative of the distance information. The optical beam may have an intensity which is higher than that of environment light of the object. The predetermined time duration may be an instantaneous time duration. The beam generator may generate a flash light as the optical beam. Alternatively, the beam generator may comprise a light source for generating a white light as the optical beam and a light source shutter for supplying the white light to the diffraction grating only when the light source shutter is activated. As a further alternative, the image pickup device may comprise a television camera and a pickup shutter for supplying the optical image of the object to the camera only when the pickup shutter is activated.

    摘要翻译： 用于从由在光束发生器（27）产生的光学射束，距离信息获取设备获取通过由（18）衍射光栅选择的单色光束照射的图像拾取装置（10）和在对象（11）之间的距离信息 用于同时激活的束发生器和图像拾取装置中的预定的持续时间如此做了光束发生器产生的光束的速率，同时激活，并做了图像拾取装置，以产生所述对象的光学图像拾取激活装置（33）包括 的画面信号而激活。 的处理单元（21）处理所述图像信号分割成处理的代表的距离信息的信号。 光束可能对强度所有这比所述对象的环境光的高。 预定持续时间可以是在瞬时持续时间。 射束生成器可以生成一个作为手电筒的光束。 可替换地，光束发生器可包括用于产生白色光的光束和用于白色光提供给衍射当光源快门被激活只有光栅的光源快门的光源。 作为进一步的替代方案中，所述图像拾取装置可以包括电视摄像机以及用于该对象的光学图像提供给只有当拾取快门被激活相机拾取快门。

    LOW DRIFT REFERENCE FOR LASER RADER
    49.
    发明公开
    LOW DRIFT REFERENCE FOR LASER RADER 审中-公开
    激光雷达低漂移基准

    公开(公告)号：EP2923219A1

    公开(公告)日：2015-09-30

    申请号：EP13815602.1

    申请日：2013-11-20

    申请人： Nikon Metrology NV

    发明人： SLOTWINSKI, Anthony, R. ,  REZK, Mina, A.

    IPC分类号： G01S7/481 ,  G01S7/491 ,  G01S17/32 ,  G01S17/89 ,  G01S7/497

    CPC分类号： G01C3/08 ,  G01S7/4812 ,  G01S7/491 ,  G01S7/497 ,  G01S17/325 ,  G01S17/89

    摘要： Laser radar systems include a pentaprism configured to scan a measurement beam with respect to a target surface. A focusing optical assembly includes a corner cube that is used to adjust measurement beam focus. Target distance is estimated based on heterodyne frequencies between a return beam and a local oscillator beam. The local oscillator beam is configured to propagate to and from the focusing optical assembly before mixing with the return beam. In some examples, heterodyne frequencies are calibrated with respect to target distance using a Fabry-Perot interferometer having mirrors fixed to a lithium aluminosilicate glass-ceramic tube.