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    • 93. 发明授权
    • Modular photographic rangefinder camera
    • 模块化摄影测距相机
    • US4100555A
    • 1978-07-11
    • US784245
    • 1977-04-04
    • Bruce K. Johnson
    • Bruce K. Johnson
    • G03B3/02G02B7/28G03B13/18G03B13/20G03B13/32G01C3/04G03B13/02
    • G03B13/20
    • A combined view and rangefinder for use in cameras having a variable focus objective lens includes means for establishing a primary image of the scene to be photographed framed in a generally rectangular field of view together with a secondary focusing image superposed on the primary image and movable obliquely across the primary image in correspondence with camera focusing so that substantial coincidence between the primary and secondary images is indicative of the camera assuming a focused condition with respect to the scene to be photographed. In addition, the path of movement for the movable secondary image of the combined view and rangefinder is located above the geometric center of the primary image so as to facilitate the framing of a human photographic subject to locate the subject's head above the geometric center of the picture. The combined view and rangefinder may also be conveniently and easily assembled through snap-fitted components.
    • 用于具有可变焦距物镜的相机中的组合视图和测距器包括用于建立与大体矩形视野框架成像的场景的主要图像以及叠加在主图像上的可移动的主要图像的装置 在与相机聚焦相对应的主图像上,使得主图像和次图像之间的实质重合表示相机假设相对于要被拍摄的场景的聚焦状态。 此外,组合视图和测距仪的可移动二次图像的移动路径位于主图像的几何中心之上,以便于人物拍摄对象的框架,以将被摄体的头部定位在第二图像的几何中心之上 图片。 组合的视图和测距仪也可以通过卡扣组件方便和容易地组装。