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. 23, 1991
Filed:
Mar. 14, 1983
Applicant:
Inventor:
Yoshihisa Maitani, Hachioji, JP;
Assignee:
Olympus Optical Company Ltd., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B / ; G03B / ; H03K / ; G06F / ;
U.S. Cl.
CPC ...
354410 ; 354442 ; 377 47 ; 377107 ; 364703 ;
Abstract
A method and apparatus for effecting photometry from plural points of an automatic exposure camera includes the provision of photometric means which determines the brightness of a relatively limited region of an image field. Photometry is successively made of the brightness of an object being photographed at a number of desired points thereon, utilizing the photometric means, and corresponding photometric values are derived. An average of these values is taken, and transmitted to exposure control means, thus effecting an exposure control in accordance with the average.