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:
Sep. 21, 2010
Filed:
Feb. 03, 2009
Tomoki Hasegawa, Utsunomiya, JP;
Tomoki Hasegawa, Utsunomiya, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A lens driving device is provided that moves a lens support frame in an optical-axis direction through a rack engaging with a feed screw functioning as an output shaft of a driving unit. The rack includes a main rack tooth engaging with the feed screw and a pressing portion facing and elastically holding the feed screw through an urging portion. The pressing portion includes a guiding section for guiding a pressing tooth of the pressing portion to a predetermined regular engagement position in incorporating the feed screw even when the pressing tooth facing and holding the feed screw in the rack of the lens driving device is inclined inward.