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:
Jun. 01, 1993
Filed:
Aug. 21, 1991
Applicant:
Inventors:
Hidefumi Notagashira, Yokohama, JP;
Toshimi Iizuka, Yokohama, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
359703 ; 359699 ;
Abstract
A lens barrel comprises a lens, a lens holding member holding the lens and movably supported, and cam arrangement for moving the lens holding member. The cam arrangement has a cam portion projectedly formed on a movable cam member, and a cam follower contacting with the cam portion. The cam follower has a plurality of contact surfaces for sandwiching the cam portion therebetween by surface contact. The plurality of contact surfaces are disposed while being deviated along the direction of extension of the cam portion.