Structure for mounting cover for automatic focus detecting devic

Details Structure for mounting cover for automatic focus detecting devic Structure for mounting cover for automatic focus detecting devic

1981-09-10

1984-01-24

Gellner, Michael L.

354476, G03B 300

Patent

active

044272774

ABSTRACT:
A single-lens reflex camera is provided with a cover member having an aperture therein for limiting the light incident to an automatic focus detecting element. A light intercepting member is movable in conjunction with the raising of the mirror to block the opening to prevent unwanted reflections from the focus detecting element to the film surface, and the lower surface of the light intercepting member may carry a soft material of felt or the like for cleaning the upper surface of the focus detecting element during movement of the light intercepting member. The focus detecting element is elastically and adjustably mounted underneath the cover, and adjustment of the position of the focus detecting element can be accomplished through the lens mount opening after removal of the cover through the lens mount opening.

REFERENCES:
patent: 4170410 (1979-10-01), Sekida et al.
patent: 4314747 (1982-02-01), Haraguchi et al.
patent: 4348088 (1982-09-01), Yamamichi et al.

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