Title:
OPTICAL PICKUP DEVICE, AND RECORDING AND&sol OR REPRODUCING DEVICE
Document Type and Number:
WIPO Patent Application WO/2003/007295
Kind Code:
A1
Abstract:
An optical pickup device comprising a feed screw (22) for moving an optical pickup (11) having an objective lens (14) in the radial direction of an optical disk (D), a slide member (24) slidable to the optical pickup with a shutter (47) connected to the optical pickup by a coil spring (25) to urge the objective lens in an opening direction, and a transmission member (51) for connecting the feed screw to the slide member. The slide member moves the optical pickup in the radial direction of the optical disk (D) when the feed screw is turned, and further slides against the urging force of the coil spring when the optical pickup is moved to the lead−in position, and closes the objective lens by the shutter.
Inventors:
OSADA YASUO (JP)
SHIMADA YUTAKA (JP)
SHIMADA YUTAKA (JP)
Application Number:
PCT/JP2002/007070
Publication Date:
January 23, 2003
Filing Date:
July 11, 2002
Export Citation:
Assignee:
SONY CORP (JP)
OSADA YASUO (JP)
SHIMADA YUTAKA (JP)
OSADA YASUO (JP)
SHIMADA YUTAKA (JP)
International Classes:
G11B7/013; G11B7/085; G11B7/12; G11B7/121; G11B7/135; G11B7/1374; G11B7/1387; G11B7/00; G11B11/105; (IPC1-7): G11B7/085; G11B7/12
Foreign References:
| JPH0822633A | 1996-01-23 | |||
| JPH1049895A | 1998-02-20 | |||
| JP2002050055A | 2002-02-15 |
Attorney, Agent or Firm:
Koike, Akira (6-4 Toranomon 2-chome Minato-ku, Tokyo, JP)
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