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:
Oct. 19, 1993
Filed:
Oct. 23, 1992
Yasuaki Ishiguro, Fujimi, JP;
Nikon Corporation, Tokyo, JP;
Abstract
An automatic exposure control apparatus calculates a predicted exposure value to be used at a time of exposure so as to account for predicted movement of an object between a time of photometering values corresponding to respective photometering areas may be weighted based, for example, on the detected movement speed of the object image plane of a phototaking optical system and on the distance to the object substantially at the time of photometering, and the predicted exposure value may then be calculated based on the photometering values as weighted. The weighting of the photometering values may be effected through selecting one of a plurality of possible photometering modes in which different photometering values are used for the exposure value calculation.