Mirror shock absorbing device in single lens reflex camera

Details Mirror shock absorbing device in single lens reflex camera Mirror shock absorbing device in single lens reflex camera

1978-10-27

1981-04-28

Truhe, J. V.

354202, G03B 1912

Patent

active

042641705

ABSTRACT:
A shock absorbing device for a mirror in a single lens reflex camera having a shock absorbing lever with a stopper portion adapted to set the lower position of the mirror for observing through a view finder of the camera. A first spring provides suitable friction for the lever with respect to a stationary member. A second spring acts on the lever to cause the stopper portion of a mirror holder to stop at a predetermined position against of a mirror lowering force. The first and second springs may be replaced by one compression and torsion coil spring having an adjustable elastic force.

REFERENCES:
patent: 3568585 (1971-03-01), Ishizaka
patent: 3653311 (1972-04-01), Sato
patent: 3738246 (1973-06-01), Sato
patent: 3860941 (1975-01-01), Fukuda

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