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:
Apr. 12, 1983
Filed:
Mar. 02, 1981
Yoshiyuki Takematsu, Tokyo, JP;
Fuji Koeki Corporation, Tokyo, JP;
Abstract
A flash device of the invention comprises, substantially, a flash unit for generating flash light and a flash control unit for controlling the flash light generated from said flash unit. The flash unit comprises electric power supplying means for supplying electric power, electric energy storing means for storing the electric energy supplied from said electric power supplying means, flash light generating means for converting the electrical energy stored in said electric energy storing means to an optical energy, and said flash control unit comprises, substantially, light receiving means for receiving a reflecting light, flash light quantity detecting means for detecting flash light quantity, means for indicating light exposure quantity, and flash light quantity control means. The flash device of the present invention is convenient to adjust the photographing distance and a diaphragm of a camera in photographing.