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:
Sep. 10, 2013
Filed:
Aug. 05, 2008
Applicant:
Teruhiko Ueyama, Kawasaki, JP;
Inventor:
Teruhiko Ueyama, Kawasaki, JP;
Assignee:
Canon Kabushiki Kaisha, , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B 13/00 (2006.01); H04N 5/232 (2006.01);
U.S. Cl.
CPC ...
Abstract
An image pickup apparatus which is capable of being downsized and being power-saved, and is capable of following the focal plane and controlling the exposure during the variably-magnifying operation. There is stored information on a position of a focus lens corresponding to a position of a zoom lens, which is dependent on an object distance. The focus lens is moved based on the stored information when the zoom lens is moved. When a moving direction of the zoom lens is switched, the focus lens is stopped, and then the moving direction of the zoom lens is switched. The focus lens is moved based on the stored information after the switching.