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. 29, 2002
Filed:
Dec. 13, 1999
Shigeo Nakashima, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A lens barrel includes a shaft member extending in an optical axis direction, the shaft member having a screw part formed thereon and arranged to be driven by a motor to rotate on an axis thereof A moving member has a screw-engaging part engaging the screw part of the shaft member and the moving member is arranged to move in the optical axis direction. A holding member holds a lens and the holding member and the moving member are moved together in the optical axis direction by rotation of the shaft member. An urging member is arranged to urge the holding member and the moving member to move together in the optical axis direction and permits relative movement of the holding member and the moving member. A stopper is arranged to have the holding member to abut thereon when the holding member moves relative to the moving member against an urging force of the urging member.