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:
Jul. 16, 2013
Filed:
Nov. 25, 2011
Applicants:
Hiroyuki Watanabe, Shiroi, JP;
Hiroki Ito, Itabashi-ku, JP;
Inventors:
Hiroyuki Watanabe, Shiroi, JP;
Hiroki Ito, Itabashi-ku, JP;
Assignee:
Nidec Copal Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 7/02 (2006.01); G02B 15/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
In a lens driving device, magnetic attraction plates that are magnetic bodies are disposed on a fixed frame at both ends of a movement region of a movable unit. Therefore, when the movable unit moves in the fixed frame to one side or to the other side in the fixed frame and reaches a position at either end of the fixed frame, magnets on the movable unit are magnetically attracted to the magnetic attraction plates on the fixed frame continuously. As a result, the movable unit can be retained at the position even when the coil becomes de-energized.