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:
Jun. 01, 2010
Filed:
Apr. 17, 2007
Applicant:
Yoshiharu Tenmyo, Yokohama, JP;
Inventor:
Yoshiharu Tenmyo, Yokohama, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B 9/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
Foreign substances adhered to a focal plane shutter are shaken off by vibrationally driving the shutter a plurality of times in succession while the focal plane shutter, which controls the incidence of light on a photoelectric transducer converting an optical image of a photographic object into an electrical signal, shields the photoelectric transducer from light incident thereon. In other words, implementing vibrational removal of adhered foreign substances by means of overloading the focal plane shutter.