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:
May. 28, 1985
Filed:
Aug. 24, 1984
Applicant:
Inventors:
Nobuyoshi Hagyuda, Tokyo, JP;
Hiroshi Hasegawa, Tokyo, JP;
Yoshikazu Iida, Chigasaki, JP;
Osamu Maida, Tokyo, JP;
Assignee:
Nippon Kogaku K.K., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B / ; G03B / ;
U.S. Cl.
CPC ...
35412711 ; 354416 ; 354418 ;
Abstract
In an electronic flash apparatus, electric power is alternately supplied by a same power source to the voltage elevating circuit for charging the main capacitor for flash emission and to other circuits provided in the flash unit or in the camera, such as a light emission control circuit for controlling the quantity of emitted light, an indicator circuit for indicating the completion of the charging of the main capacitor, an indicator circuit for indicating whether the light emission control is in operation, an alarm circuit for indicating an inadequate setting of the flash unit etc.