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. 09, 2002
Filed:
May. 30, 2000
Applicant:
Inventor:
Mitsumasa Okubo, Hino, JP;
Assignee:
Olympus Optical Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G03B 7/08 ; G03B 1/336 ;
U.S. Cl.
CPC ...
G03B 7/08 ; G03B 1/336 ;
Abstract
A compact and high-performance photometry/distance measuring unit in which a chip can be used in common optimally, and the characteristics of the devices can be optimized. The photometry/distance measuring unit comprises a distance measuring PSD, a spot sensor and an average metering sensor. The spot sensor, the average metering sensor, a photometry circuit and a distance measuring circuit are formed on an IC chip independent of the PSD.