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:
Jun. 30, 1987
Filed:
Oct. 23, 1985
Applicant:
Inventor:
Hiroaki Nakamura, Hachioji, JP;
Assignee:
Olympus Optical, Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B / ;
U.S. Cl.
CPC ...
3152 / ; 3152 / ; 3152 / ; 3152 / ; 315366 ;
Abstract
An electronic flash includes a main capacitor having a discharge loop in which a circuit arrangement including a flash discharge tube, a switching element and an emission controlling capacitor is connected. During the time the flash discharge tube is maintained excited, the emission controlling capacitor is either charged or discharged to cause an emission of flashlight from the flash discharge tube.