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. 09, 1999
Filed:
Oct. 21, 1997
Applicant:
Inventors:
Kanji Tsuji, Kanagawa-ken, JP;
Akihiro Namai, Kanagawa-ken, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
359700 ; 359699 ;
Abstract
A lens barrel comprises a first lens group, a cam tube provided with a cam, a plurality of engagement members arranged to move integrally with the first lens group and engaged with a plurality of cam parts of the cam, and a moving member for moving the cam tube along an optical axis with a rotation of the cam tube, wherein a cam part with which at least one engagement member of the plurality of engagement members is engaged is connected to a cam part with which an engagement member adjacent to the at least one engagement member is engaged.