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:
Aug. 11, 2020
Filed:
Apr. 06, 2018
Nikon Corporation, Tokyo, JP;
Masateru Asayama, Tokyo, JP;
NIKON CORPORATION, Tokyo, JP;
Abstract
A lens barrel, in one configuration, includes a moving member that has a cam pin and moves in an optical axis direction of a lens while holding the lens; a first barrel; a second barrel; a recess groove that is formed along a circumferential direction around the optical axis in one of a surface, which faces the first barrel, of the second barrel and a surface, which faces the second barrel, of the first barrel; and a biasing portion that faces the recess groove and applies a biasing force in a direction intersecting with the optical axis. The biasing force applied by the biasing portion changes according to a relative rotation between the first barrel and the second barrel.