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. 03, 1986
Filed:
Jan. 23, 1985
Hiroaki Nakamura, Hachioji, JP;
Olympus Optical Co., Ltd., Tokyo, JP;
Abstract
An electronic flash unit of the dynamic flat flash type includes a flash control circuit which produces a flash termination signal by detecting the fact that a value associated with pulse flashes reaches a predetermined level and further produces a flash resumption signal within a period of time less than the deionization time of a flash discharge tube after the flash termination signal has been produced. With the flash control circuit, the electronic flash unit permits the discharge tube to repeatedly emit a pulse flash during an exposure operation of a shutter of a camera so that the flash characteristics substantially equivalent to a continuous flash can be obtained.