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Patent Searching and Data


Title:
LENS DRIVER AND PROCESS FOR MANUFACTURING THE SAME
Document Type and Number:
WIPO Patent Application WO/2005/054923
Kind Code:
A1
Abstract:
A lens driver (1) comprising a moving lens body (10) consisting of a lens-barrel (10b) provided with a lens (14) and a lens-barrel holder (10a) for supporting the lens-barrel (10b) so as to be movable in the direction of the optical axis (11). The lens-barrel holder (10a) has a driving magnet (16) and a case body (24) for supporting the moving lens body (10) so as to be movable in the direction of the optical axis (11) encases first and second driving coils and has an end face (27) of an inner tubular section (26b) and a projecting edge (36) of an inner tubular section (42b) that regulate the moving range of the lens-barrel holder (10a) in the direction of the optical axis (11). The moving lens body (10) is moved by a magnetic attracting force or repelling force of the driving magnet (16) and the first and second driving coils.

Inventors:
KOZAKAI MASAHIRO (JP)
YONEYAMA HIDEKAZU (JP)
OSTUKI NOBORU (JP)
Application Number:
PCT/JP2004/011962
Publication Date:
June 16, 2005
Filing Date:
August 20, 2004
Export Citation:
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Assignee:
SANKYO SEIKI SEISAKUSHO KK (JP)
KOZAKAI MASAHIRO (JP)
YONEYAMA HIDEKAZU (JP)
OSTUKI NOBORU (JP)
International Classes:
G02B7/08; G02B7/04; G02B13/00; H02K33/00; (IPC1-7): G02B7/04
Foreign References:
JP2004304566A2004-10-28
JP2002374436A2002-12-26
JPS5888611U1983-06-16
JPS59149117U1984-10-05
JPH1172693A1999-03-16
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