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:
May. 28, 2013
Filed:
Jan. 16, 2009
Takahiro Oya, Yokohama, JP;
Takahiro Oya, Yokohama, JP;
Canon Kabushiki Kaisha, , JP;
Abstract
A lens driving device which can stably support a lead screw, and furthermore, can reduce driving load while maintaining a centering function for stabilizing a lens stop position. The lens driving device comprises a lens for holding member holding a photographic lens, a lead screw for moving the lens holding member forward and backward in a photographic optical axis direction, and a first support member and a second support member for rotationally supporting the lead screw. The second support member has a support concave portion having an apex for supporting the lead screw, and the lead screw has a support portion that is in point contact with the support concave portion having the apex.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile