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    • 24. 发明授权
    • Rangefinding mechanism
    • 测距机制
    • US4125847A
    • 1978-11-14
    • US838615
    • 1977-10-03
    • Masao Abe
    • Masao Abe
    • G03B13/36G02B7/30G03B7/08G01J1/20
    • G02B7/305
    • A rangefinder mechanism is shown in which the scanning mirror has been reced with a movable scanning optic. The automatic rangefinder system includes a pair of optical paths one a reference path and the other a scanned path which are led to impinge upon a photosensitive surface for comparison purposes. The output of the photosensitive surface is used to adjust the main lens of the camera. Disposed in front of the movable optic is another optical movable relative thereto to coordinate with the position of the main lens of the camera as feedback and adjust the rangefinder system.
    • 示出了一种测距机构,其中扫描镜已被可移动扫描光学器件代替。 自动测距系统包括一对光路,一个参考路径,另一个是被引导到光敏表面上以便比较的扫描路径。 感光表面的输出用于调整摄像机的主镜头。 在可移动光学元件前方设置的是另一种可相对于其移动的光学元件,以与相机的主透镜的位置协调,作为反馈并调整测距系统。