Coordinating mechanism for picture image area and field frame si

Details Coordinating mechanism for picture image area and field frame si Coordinating mechanism for picture image area and field frame si

1993-11-12

1995-01-31

Blankenship, Howard B.

354159, 354222, G03B 1310, G03B 3700

Patent

active

053862597

ABSTRACT:
An apparatus for adjusting the size of a picture image area and field frame of a view finder in an associated manner. The apparatus includes a picture image area restricting member which is linearly movable into and out of a photographing aperture, a field frame restricting member which is rotatably movable into and out of the field frame, a rotatable operating member for moving the picture image area restricting member, and a driving member which is linearly driven by the rotation of the operating member to rotate the field frame restricting member.

REFERENCES:
patent: 4716427 (1987-12-01), Shyu
patent: 5010357 (1991-04-01), Misawa
patent: 5066971 (1991-11-01), Kodaira
patent: 5258790 (1993-11-01), Tanaka

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