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. 14, 2008
Filed:
May. 17, 2006
Applicant:
Tsuyoshi Morofuji, Shioya-gun, JP;
Inventor:
Tsuyoshi Morofuji, Shioya-gun, JP;
Assignee:
Canon Kabushiki Kaishi, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B 17/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
At least one exemplary embodiment is directed to an imaging apparatus which includes a rear-focus-type lens system configured to perform autofocusing on the basis of a video signal received from an image pickup device. The imaging apparatus can determine a distance from a subject on the basis of correlation information (cam locus) detailing a correlation between the position of a zoom lens and the focus position of a focus lens, with respect to infrared light and visible light, and selects or calculates and determines a cam locus to be used.