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. 29, 2014
Filed:
Apr. 23, 2010
Goro Noto, Tokyo, JP;
Shinichi Masuda, Hachioji, JP;
Goro Noto, Tokyo, JP;
Shinichi Masuda, Hachioji, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image stabilizer has a shooting optical system shooting an object whose principal point moves between first and second principal points in an optical axis direction, an acceleration detector detecting acceleration applied to the image stabilizer and disposed between the first and second principal points in the optical axis direction. An angular velocity detector detecting angular velocity applied to the image stabilizer, an acceleration detector disposed between principal points for proximity and infinity shootings and detecting acceleration applied to the image stabilizer, a rotation angular velocity calculator calculating rotation angular velocity component around the principal point of the shooting optical system based on the angular velocity detector, a revolution angular velocity calculator calculating revolution angular velocity component around the object based on the acceleration detector and the rotation angular velocity calculator, and a controller performing image stabilization control based on a difference between the rotation and revolution angular velocity components.