The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 05, 1985
Filed:
Mar. 09, 1983
Applicant:
Inventors:
Masao Nakamori, Tokyo, JP;
Yasuo Ishiguro, Tokyo, JP;
Assignee:
Copal Company Limited, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B / ;
U.S. Cl.
CPC ...
354152 ; 354153 ;
Abstract
A quick-return mirror driving mechanism for single-lens reflex cameras so formed that the release of a mirror-up operating member and the release of a mirror-down operating member are effected by a single electromagnetic means, in order to eliminate a mechanical connection between the shutter mechanism and quick-return mirror driving mechanism and, therefore, to simplify the mechanism as a whole.