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:
Mar. 08, 2011
Filed:
Oct. 09, 2007
Yukio Uenaka, Tokyo, JP;
Shigeru Iwamoto, Tokyo, JP;
Yukio Uenaka, Tokyo, JP;
Shigeru Iwamoto, Tokyo, JP;
Hoya Corporation, Tokyo, JP;
Abstract
A dust removal apparatus of a photographing apparatus comprises a movable unit and a controller. The movable unit has an imaging device and is movable. The controller strikes the movable unit against a boundary of a range of movement of the movable unit as a dust removal operation. The controller counts the number of times of the dust removal operation, measures an elapsed time from the point when counting the number of times of the dust removal operation commences. When the elapsed time is less than or equal to a time period and the number of times of the dust removal operation is equal to or greater than a predetermined number of times, the controller halts the dust removal operation until a predetermined time period has elapsed.