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:
Dec. 08, 1981
Filed:
Jun. 30, 1980
Applicant:
Inventors:
Kiyoshi Kitai, Yotsukaido, JP;
Masuo Ogihara, Yotsukaido, JP;
Kozo Chimura, Yotsukaido, JP;
Nobuo Shinozaki, Yotsukaido, JP;
Assignee:
Seiko Koki Kabushiki Kaisha, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G03B / ; G03B / ; G03B / ;
U.S. Cl.
CPC ...
354 25 ; 354 31 ; 354 / ; 354 / ; 354198 ; 354268 ;
Abstract
A luminance detecting module and an focus detecting module are actuated in the first step of shutter release operation and an exposure control module is actuated in the second step. All of these modules are connected to a single electromagnet. When a photographing impractible signal is given in the first step of the shutter release operation, the electromagnet actuates a release locking member so that the shutter release motion is interrupted.