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:
Mar. 31, 1998
Filed:
Sep. 16, 1996
Applicant:
Inventors:
Katsumi Horinishi, Hashimoto, JP;
Akira Iwamoto, Kadoma, JP;
Mitsuo Fuke, Nara, JP;
Katsunori Kawabata, Osaka, JP;
Shinji Ando, Osaka, JP;
Assignee:
West Electric Co., Ltd., , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B / ; G03B / ;
U.S. Cl.
CPC ...
396 62 ; 396175 ; 396200 ; 362 18 ;
Abstract
An emission angle variable flash apparatus of the invention alters an angular aperture to be formed by side reflection plates disposed oppositely to both side surfaces of a reflector in linkage with a change of a distance between a Xe tube and a reflector on their optical axis, thereby enhancing the efficiency of utilization of flash from a light source and expanding a variable range of an emission angle in the horizontal direction. As a result, the emission angle variable flash apparatus of the invention is made smaller in size than in the prior art.