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:
Jan. 14, 2003
Filed:
Dec. 08, 2000
Isamu Hirai, Tokyo, JP;
Yoshikazu Iida, Tokyo, JP;
Pentax Corporation, Tokyo, JP;
Abstract
A photometry device for a camera includes a normal light metering system having spectral sensitivity characteristics close to visual sensitivity characteristics, and a plurality of light metering systems having spectral sensitivity characteristics that are different from those of the normal light metering system. Further provided is an exposure amount determining system that determines an exposure amount of an object in accordance with an output of the normal light metering system, a colorimetry system that judges a color of the object in accordance with the outputs of said plurality of light metering systems. An exposure compensation amount is determined in accordance with the color judged by the colorimetry system, and then, the exposure amount is compensated in accordance with the exposure compensation amount.