Patent
1982-11-03
1984-11-06
Gellner, Michael L.
354152, G03B 7099, G03B 1912
Patent
active
044809042
ABSTRACT:
A single-lens reflex camera of the class having a main movable mirror which guides light flux coming through a photo-taking lens to a view finder, an auxiliary movable mirror which is arranged behind the main movable mirror to guide a part of the light flux to light or distance measuring device and a mirror driving mechanism which is arranged to move these movable mirrors away from a photo-taking optical path at the time of exposing a film to light is provided with an anti-mirror-bounce device comprising a first anti-bounce member which prevents the main movable mirror from bouncing by engaging the main movable mirror in response to the return of the main mirror to a point close to its original position after completion of the film exposure; and a second anti-bounce member which prevents the auxiliary mirror from bouncing by engaging the auxiliary movable mirror in response to the return of the auxiliary mirror to a point close to its original position. The anti-mirror-bounce device protects the light or distance measuring device of the camera from being affected by bounces of the movable mirrors.
REFERENCES:
patent: 4091399 (1978-05-01), Ohmori
patent: 4342508 (1982-08-01), Haraguchi
Canon Kabushiki Kaisha
Gellner Michael L.
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