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. 06, 2010
Filed:
Apr. 16, 2007
Applicant:
Hiroshi Matsushima, Machida, JP;
Inventor:
Hiroshi Matsushima, Machida, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B 17/00 (2006.01); G03B 19/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
In a case that a cleaning mode is designated, it is determined whether or not a lens unit is attached to a camera main body. If it is determined that the lens unit is not attached to the camera main body, a quick return mirror is moved upward and a shutter is opened, and a photoelectric conversion device, or a cover glass or an optical filter of the photoelectric conversion device is vibrated, thereby foreign substances attached to the photoelectric conversion device and the like are removed.