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. 10, 1998
Filed:
Jul. 25, 1996
Applicant:
Inventors:
Tuyoshi Ishikawa, Tokyo, JP;
Yuji Ogawa, Tokyo, JP;
Assignee:
Asahi Kogaku Kogyo Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B / ;
U.S. Cl.
CPC ...
396 62 ; 396175 ;
Abstract
An improved zoom strobe device is provided. When a zoom lens changes its focal length from a first length to a second length, the zoom strobe device changes its illumination angle from its minimum angle to maximum angle when the focal length of the zoom lens is changed from the first length to a third length which is smaller than the second length but greater than the first length, and then the strobe device maintains the maximum illumination angle when the focal length of the zoom lens changes between the third length and the second length.