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:
Feb. 12, 2002
Filed:
Jun. 08, 1999
Applicant:
Inventors:
Assignee:
Minolta Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 7/09 ; G03B 1/100 ; G03B 1/336 ;
U.S. Cl.
CPC ...
G02B 7/09 ; G03B 1/100 ; G03B 1/336 ;
Abstract
A focus detecting device comprising a taking lens for photographing an object, a relay optical system for re-forming an object image via the taking lens, and a detecting means having first and second sensor pairs for detecting the image re-formed by the relay optical system, wherein focus detection is accomplished using one sensor of the first sensor pair and one sensor of the second sensor pair.