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. 01, 2018
Filed:
Jan. 08, 2016
Nikon Corporation, Tokyo, JP;
Masateru Asayama, Tokyo, JP;
NIKON CORPORATION, Tokyo, JP;
Abstract
A lens barrel, in one configuration, includes: a first barrel in which a cam groove having a shape curved with respect to a predetermined axis direction is formed to pierce through the first barrel; a second barrel capable of rotating around the predetermined axis along an outer circumferential surface of the first barrel, a straight groove extending in the predetermined axis direction being formed in the second barrel; a moving member that has a cam pin moving along the cam groove and the straight groove and moves in the predetermined axis direction while holding a lens inside the first barrel as the second barrel rotates with respect to the first barrel; and a damping mechanism that applies damping force depending on an angle of the cam groove to the predetermined axis direction to the second barrel.