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. 10, 1998
Filed:
Nov. 26, 1996
Yuji Ihara, Tokyo, JP;
Hitoshi Imanari, Yokohama, JP;
Nikon Corporation, Tokyo, JP;
Abstract
A lens barrel includes a lens holding barrel holding a lens, a containing barrel containing the lens holding barrel therein, a plurality of inwardly directed projections provided on the inner peripheral surface of the containing barrel, and a plurality of groups of outwardly directed projections provided on the outer peripheral surface of the lens holding barrel, each of the plurality of groups of outwardly directed projections having the same number of outwardly directed projections as the number of the inwardly directed projections, the plurality of inwardly directed projections bearing against respective ones of the outwardly directed projections in one group at a time to position the optical axis to the lens, virtual circles circumscribed on the outwardly directed projections in the respective groups having the same size in a plane perpendicular to the optical axis, the centers of the virtual circles lying at different positions.