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:
Sep. 11, 2001
Filed:
Aug. 28, 2000
Applicant:
Inventor:
Toru Kamada, Nagano, JP;
Assignee:
Kabushiki Kaisha Sankyo Seiki Seisakusho, Nagano, JP;
Primary Examiner:
Int. Cl.
CPC ...
G02B 7/02 ;
U.S. Cl.
CPC ...
G02B 7/02 ;
Abstract
A magnetic piece,is provided in the almost central portion of a magnet,in a tracking direction. Therefore, the magnetic piece,is attracted to the almost central portion of the magnet,by the magnetic attraction of the magnet,and is held therein. In addition, when a lens holder,is set in a neutral position in a focusing direction, the magnetic pieces,are provided in the vicinity of both edge portions in the focusing direction of the magnet,, respectively. Consequently, the lens holder,is held in the balance position of the magnetic attractions for both magnetic pieces