Lens shutter actuating device for quick-return type single-lens

Details Lens shutter actuating device for quick-return type single-lens Lens shutter actuating device for quick-return type single-lens

1976-01-27

1977-12-06

Adams, Russell E.

354154, 354231, 354233, G03B 900, G03B 908

Patent

active

040620298

ABSTRACT:
A single-lens reflex camera shutter having an operating ring driven in one direction by a gear-rack and pinion combination. The operating ring actuates the diaphragm and shutter blades and is stopped by a stop lever during the taking of an exposure. The stop lever is locked during the taking of an exposure by a signal lever that signals the taking of an exposure and is released upon completion of an exposure to allow the operating ring to continue in its travel and carry out opening of the shutter and opening of the diaphragm blades.

REFERENCES:
patent: 3027819 (1962-04-01), Reiche et al.
patent: 3074333 (1963-01-01), Hahn et al.
patent: 3094913 (1963-06-01), Morelle
patent: 3158075 (1964-11-01), Ohara
patent: 3165042 (1965-01-01), Higuchi
patent: 3191514 (1965-06-01), Ohara
patent: 3218949 (1965-11-01), Kiper
patent: 3230855 (1966-01-01), Kiper
patent: 3254584 (1966-06-01), Okajima
patent: 3487759 (1970-01-01), Fahlenberg

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