Light blocking apparatus for a camera

Details Light blocking apparatus for a camera Light blocking apparatus for a camera

1997-05-22

1999-11-09

Lee, Eddie C.

Photography

Single lens reflex camera

396355, 396494, C03B 1912, C03B 1926

Patent

active

059801220

ABSTRACT:
A camera includes a fixed first mirror for both reflecting a light flux and transmitting the light flux therethrough, a second mirror for reflecting a part of the light flux transmitted through the first mirror toward a particular device, the second mirror being capable of moving between a non-exposure position and a mirror-retracted position, and a light blocking member movable in interlocked relationship to a movement of the second mirror in such a manner that, when the second mirror is located at the non-exposure position, the light blocking member is located at a light blocking position at which the light blocking member blocks at least a part of the light flux transmitted through the first mirror, and, when the second mirror is retracted to the mirror-retracted position, the light blocking member moves to a retracted position at which the light blocking member is retracted from the light blocking position.

REFERENCES:
patent: 4348088 (1982-09-01), Yamamichi et al.
patent: 4492453 (1985-01-01), Hiramatsu
patent: 4508439 (1985-04-01), Chara et al.
patent: 4673278 (1987-06-01), Fukuda et al.
patent: 4730200 (1988-03-01), Kitazawa
patent: 4941010 (1990-07-01), Aihara et al.

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