Apparatus useful for positioning a light filter
    1.
    发明授权
    Apparatus useful for positioning a light filter 失效
    用于定位滤光片的装置

    公开(公告)号:US4419575A

    公开(公告)日:1983-12-06

    申请号:US269305

    申请日:1981-06-02

    CPC分类号: G01J3/12

    摘要: An apparatus useful for positioning a light filter includes an incrementally stepped motor having the light filter affixed thereto. The apparatus also includes means for detecting a light signal and incrementing the motor in response thereto.

    摘要翻译: 用于定位光过滤器的装置包括具有附着于其上的光过滤器的增量阶梯式电动机。 该装置还包括用于检测光信号并响应于此使电机递增的装置。