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. 15, 1981
Filed:
Apr. 25, 1980
Applicant:
Inventors:
Shinji Nagaoka, Yotsukaido, JP;
Yuzuru Takazawa, Yotsukaido, JP;
Assignee:
Seiko Koki Kabushiki Kaisha, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B / ;
U.S. Cl.
CPC ...
354139 ;
Abstract
In a camera of the type including an electronic flash light unit with an oscillating circuit and an electronic shutter which are both supplied with power from a common power supply, an inhibit circuit for an electric flash charge circuit is provided in which a base of the transistor in the oscillating circuit is connected to the output terminal of the exposure control circuit via a semi-conductor switching element. The semi-conductor switching element stops oscillation in the electric flash charge circuit while the exposure control circuit is in operation.