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. 18, 2025
Filed:
Jun. 04, 2019
Applicant:
Nikon Corporation, Tokyo, JP;
Inventors:
Kunihiko Shimizu, Tokyo, JP;
Mizuki Wayu, Tokyo, JP;
Assignee:
NIKON CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 7/02 (2021.01); G02B 5/00 (2006.01);
U.S. Cl.
CPC ...
G02B 5/005 (2013.01); G02B 7/02 (2013.01);
Abstract
The present invention provides a lens barrel capable of changing the aperture diameter according to a zoom position while having a short length. A lens barrelaccording to the present invention comprises: a aperture unithaving a cam follower; and a moving tubehaving a cam groovefor engaging the cam follower, the moving tube being provided at the outer circumference of the aperture unitand able to move along the optical axis direction.