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:
Jan. 22, 2019
Filed:
Jan. 12, 2016
Canon Kabushiki Kaisha, Tokyo, JP;
Harushige Yamamoto, Yamato, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A lens driving apparatus includes a lens holding member for holding a lens movably in an optical axis direction; a first guide bar and a second guide bar that support the lens holding member movably in the optical axis direction; first driving unit and second driving unit that drive the lens holding member in the optical direction; and first position detection unit and second position detection unit that are positioned close to the first driving unit and the second driving unit to detect a position in the optical axis direction. Upon driving the lens holding member, either of or both of the first driving unit and the second driving unit are driven and controlled from a position detection result of the first position detection unit and the second position detection unit in such a manner that the first and second driving units are positioned at a predetermined position.