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:
Mar. 24, 1998
Filed:
Nov. 13, 1995
Applicant:
Inventor:
Hitoshi Imanari, Kanagawa-ken, JP;
Assignee:
Nikon Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
359700 ; 359699 ; 359701 ;
Abstract
A lens barrel capable of high precision in the positional relationship of two cams by providing the two cams on one cam member is disclosed. Additionally, freedom of positioning the cams is increased by providing the two cams along a common radial line from a center line of the member while maintaining rigidity of the member. The cam member includes at least one cam groove on an inner surface and at least one cam protuberance on an outer surface for engagement with engagement members on an inner surface of a cylindrical member.