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:
Oct. 31, 2017
Filed:
Mar. 25, 2015
Canon Kabushiki Kaisha, Tokyo, JP;
Hiroyoshi Inaba, Utsunomiya, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
Provided is a lens barrel which causes at least one lens to be movable in an optical axis direction. The lens barrel includes a first tube; a second tube that holds the lens and is movable relatively to the first tube in the optical axis direction; and either one of the first and the second tube includes a first and a second roller which contact with the other tube in a plane orthogonal to the optical axis direction, and the first roller and the second roller are rotable in accordance with the relative movement of the second tube and movable in a direction orthogonal to the optical axis direction at the time of the movement of the second tube. One tube includes a limiting member for limiting the movement of the second roller in the direction orthogonal to the optical axis direction and in a direction to the other tube.