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:
Nov. 16, 1982
Filed:
Sep. 30, 1980
Applicant:
Inventors:
Mamoru Aihara, Hachioji, JP;
Yutaka Takahashi, Hachioji, JP;
Yoshio Nakajima, Hachioji, JP;
Tsuyoshi Matsuura, Ina, JP;
Assignee:
Olympus Optical Company Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B / ;
U.S. Cl.
CPC ...
354 / ; 354 50 ; 354 51 ;
Abstract
A photographing apparatus includes a central processing unit to which input information is supplied inclusive of film speed, correction factors to correct for the failure of the reciprocity law and other photographing conditions which are based on such input information, controls a selective connection of integrating capacitors in an integrating circuit and calculates an expected exposure period and the remainder of the exposure period in which the failure of the reciprocity law is corrected for.