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:
Feb. 16, 2021
Filed:
Jan. 29, 2019
Canon Kabushiki Kaisha, Tokyo, JP;
Kohei Uemura, Tokyo, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A lens barrel that is difficult to be broken by external forces without upsizing the lens barrel or degrading optical performance. The lens barrel has a lens holding member, an exterior frame disposed on a subject side of the lens holding member, a guide member disposed on an outer peripheral side of the lens holding member to guide the lens holding member movably in the optical axis direction, and a cam ring held rotatably on an outer peripheral side of the guide member. The lens holding member and the exterior frame are engaged with respective different cam grooves disposed in the cam ring and are driven by the cam ring in a state of being urged by an elastic member in such directions as that the lens holding member and the exterior frame are separated from each other in the optical axis direction.