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:
Aug. 04, 2015
Filed:
May. 16, 2014
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventor:
Jun Sugita, Saitama, JP;
Assignee:
CANON KABUSHIKI KAISHA, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 7/02 (2006.01); G03B 13/34 (2006.01); G02B 7/10 (2006.01); G03B 5/00 (2006.01); G02B 7/00 (2006.01); G02B 7/04 (2006.01);
U.S. Cl.
CPC ...
G03B 13/34 (2013.01); G02B 7/004 (2013.01); G02B 7/023 (2013.01); G02B 7/04 (2013.01); G02B 7/10 (2013.01); G03B 5/00 (2013.01);
Abstract
A lens barrel includes an oscillatory wave motor which drives a lens; a manual connection ring which is operated manually to cause the lens to move along an optical axis; a slip ring which is in contact with the manual connection ring; a roller which is in contact with the slip ring and with the oscillatory wave motor; and a roller support ring which supports the roller. The slip ring is structured such that frictional resistance on a contact surface between the manual connection ring and the slip ring is smaller than frictional resistance on a contact surface between the roller and the slip ring.