Frame masking mechanism

Details Frame masking mechanism Frame masking mechanism

1995-09-05

1997-02-11

Metjahic, Safet

Photography

Variable frame masking

G03B 1702, G03B 3700

Patent

active

056026064

ABSTRACT:
A frame opening of a camera image area is maskable in both horizontal and vertical directions using L shaped masks, each L shaped mask able to mask adjacent sides of the frame, and diagonally oppositely arranged. The masks are driven by a disk member rotatable by the user, and are linked together to mask the top and bottom and/or left and right sides of the frame. The rotating disk may unidirectionally mask the vertical or horizontal portions of the frame or all four sides of the frame.

REFERENCES:
patent: 5010357 (1991-04-01), Misawa
patent: 5255030 (1993-10-01), Mukai et al.
patent: 5298929 (1994-03-01), Tsunefuji et al.
patent: 5335031 (1994-08-01), Ogawa
patent: 5345285 (1994-09-01), Hasushita et al.
patent: 5386259 (1995-01-01), Ichikawa et al.
patent: 5493356 (1996-02-01), Tokui

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