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    • 27. 发明授权
    • Finder optical system
    • Finder光学系统
    • US5166718A
    • 1992-11-24
    • US698342
    • 1991-05-07
    • Masaharu SuzukiMakoto SekitaKazuo Fujibayashi
    • Masaharu SuzukiMakoto SekitaKazuo Fujibayashi
    • G03B19/12
    • G03B19/12
    • A finder optical system suited to the electronic camera of the single lens reflex type, the camera having the movable mirror for making a finder optical axis (second optical axis) from the optical axis (first optical axis) of the photographic light beam, including at least one reflecting member for reflecting this second optical axis in a direction perpendicular to the first optical axis and the second optical axis bent by the movable mirror and a secondary image forming lens, whereby the height of the finder is lowered, and further, while improving the finder magnification, an erect non-reverse image can be observed, is disclosed. Disclosure is made also on the arrangement of the light measuring element and the automatic focus adjusting device suited to the electronic camera.
    • 一种适用于单反射型电子照相机的取景器光学系统,该照相机具有用于从照相光束的光轴(第一光轴)形成取景器光轴(第二光轴)的可移动镜,包括在 至少一个用于在垂直于第一光轴的方向反射该第二光轴的反射构件和由可移动反射镜弯曲的第二光轴和二次成像透镜,由此取景器的高度降低,并且在改善 可以观察到取景器放大率,直立的非反转图像。 还公开了适用于电子照相机的光测量元件和自动聚焦调节装置的布置。