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:
Dec. 18, 1990
Filed:
Nov. 21, 1989
Applicant:
Inventors:
Toshifumi Nakano, Hachioji, JP;
Akira Inoue, Hachioji, JP;
Juro Kikuchi, Yamanashi, JP;
Hiroaki Nakamura, Hachioji, JP;
Tatsuji Higuchi, Akikawa, JP;
Assignee:
Olympus Optical Co., Ltd., , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B / ;
U.S. Cl.
CPC ...
354413 ; 35414911 ;
Abstract
A camera having a red-eye alarm device which receives a signal representative of a distance l between an object to be photographed and a camera, the focal length f of a taking lens, a signal representative of a distance d between the optical axis of the taking lens and the center of an electronic flash discharge tube, and develops an alarm signal based upon the object distance l, the focal length f and the spacing d, the red-eye alarm signal being developed when a conditional formula ##EQU1## is satisfied.