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:
Aug. 30, 2005
Filed:
Feb. 17, 2004
Applicants:
Masahiro Nakata, Saitama, JP;
Satoru Horita, Tochigi, JP;
Inventors:
Masahiro Nakata, Saitama, JP;
Satoru Horita, Tochigi, JP;
Assignee:
PENTAX Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B013/36 ;
U.S. Cl.
CPC ...
Abstract
A focus detection device includes a plurality of line sensors, a plurality of monitor sensors provided adjacent to respective the line sensors, wherein each of the monitor sensors monitors the quantity of light received by a corresponding the line sensor, and a control device which controls the driving of the line sensors and the monitor sensors in a desired combination thereof. The line sensors, the monitor sensors, and the control device are provided on a common circuit board.