Invention Grant
- Patent Title: Optical pickup and optical disk apparatus
- Patent Title (中): 光学拾取和光盘设备
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Application No.: US11788118Application Date: 2007-04-19
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Publication No.: US07768879B2Publication Date: 2010-08-03
- Inventor: Hideo Ohkuma , Muneyuki Horiguchi
- Applicant: Hideo Ohkuma , Muneyuki Horiguchi
- Applicant Address: JP Tokyo
- Assignee: Sony Corporation
- Current Assignee: Sony Corporation
- Current Assignee Address: JP Tokyo
- Agency: Wolf, Greenfield & Sacks, P.C.
- Priority: JP2006-126595 20060428
- Main IPC: G11B7/00
- IPC: G11B7/00

Abstract:
An optical pickup includes a lens holder holding an objective lens for converging a light beam on a signal recording layer of an optical disk; elastic support members supporting the lens holder such that the lens holder can freely move in three driving directions, i.e., a tracking direction, a focusing direction, and a tilting direction; a pair of coil units attached to two sides of the lens holder, the two sides being spaced in a tangential direction orthogonal to the focusing direction and tracking direction; and a pair of magnets arranged to face the corresponding coil units. Each coil unit includes a tracking coil, a focusing coil, and a tilting coil for driving the lens holder in the three driving directions. The focusing coil and the tilting coil are formed by winding a focusing conductor of the focusing coil and a tilting conductor of the tilting coil together in parallel.
Public/Granted literature
- US20070253297A1 Optical pickup and optical disk apparatus Public/Granted day:2007-11-01
Information query
IPC分类: