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:
Nov. 08, 2016
Filed:
Oct. 23, 2015
Applicant:
Olympus Corporation, Shibuya-ku, Tokyo, JP;
Inventors:
Assignee:
OLYMPUS CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B 5/00 (2006.01); G02B 27/64 (2006.01); F16F 6/00 (2006.01); H01F 7/02 (2006.01); H01F 7/06 (2006.01); H04N 5/232 (2006.01);
U.S. Cl.
CPC ...
G02B 27/646 (2013.01); F16F 6/00 (2013.01); G02B 27/64 (2013.01); G03B 5/00 (2013.01); H01F 7/0242 (2013.01); H01F 7/06 (2013.01); H04N 5/2328 (2013.01);
Abstract
A retention mechanism includes a fixed part including a magnet, and a movable part opposed to the fixed part. A plurality of rolling elements are provided between the fixed part and the movable part, and the movable part is movable in a plane direction. A magnetic material which forms, in combination with the magnet, a magnetic spring is provided on the movable part. The magnetic spring generates a magnetic attraction force which attracts the movable part to the fixed part. The magnetic material is extended along a direction in which magnetic poles of the magnet are arrayed.