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. 20, 1990
Filed:
May. 02, 1989
Nikon Corporation, Tokyo, JP;
Abstract
An exposure controlling apparatus for a camera, comprises a divided photometry device for performing photometry regarding an object field through a taking lens by dividing the object field into a plurality of areas, a central portion photometry device for performing photometry regarding a central area of the object field through the taking lens, a lens information output device for outputting lens information representative of a quantitive optical feature of the taking lens, a comparison device, including reference value information, for comparing the lens information with the reference value information, and an exposure determination means, responsive to the comparison device, for determining an exposure value regarding the object field in accordance with the divided photometry device when the lens information does not exceed the reference value information, and for determining an exposure value regarding the object field in accordance with the central portion photometry device when the lens information exceeds the reference value information.