Driving mechanism for a photograhing optical system

Details Driving mechanism for a photograhing optical system Driving mechanism for a photograhing optical system

1995-06-19

1997-01-07

Metjahic, Safet

Photography

Having variable focal length of camera objective

Having focus operation

396 85, 396133, G03B 118

Patent

active

055922503

ABSTRACT:
A photographing device includes a driving mechanism provided in a photographing optical system, a driving source located outside the photographing optical system, a rotational shaft located parallel with an optical axis of the photographing optical system, and in the photographing optical system, and connecting the driving source and the driving mechanism, an electro-magnetic clutch mechanism located around the optical axis of the photographing optical system, and arranged to connect/disconnect the driving mechanism and the driving source.

REFERENCES:
patent: 2940373 (1960-06-01), Berg et al.
patent: 3656422 (1972-04-01), Hess et al.
patent: 4696559 (1987-09-01), Kondo
patent: 5041855 (1991-08-01), Takezawa et al.
patent: 5168295 (1992-12-01), Yoshihara et al.
patent: 5365301 (1994-11-01), Sugita et al.

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