Optical pickup device, and recorder and/or player

Details Optical pickup device, and recorder and/or player Optical pickup device, and recorder and/or player

2006-09-05

2006-09-05

Tran, Thang V. (Department: 2627)

Dynamic optical information storage or retrieval

Dynamic mechanism optical subsystem

Protecting optical transducer

Reexamination Certificate

active

07103895

ABSTRACT:
An optical pickup device includes a feed screw to move an optical pickup having an objective lens radially on an optical disc, a sliding member provided for slidable movement in relation to the optical pickup, and connected to the optical pickup by a coil spring that forces a shutter in a direction of unmasking the objective lens, and a connection member that connects the feed screw and sliding member to each other. As the feed screw is rotated, the sliding member moves the optical pickup radially on the optical disc, and when the optical pickup has arrived at a position at the lead-in side of the optical disc, the sliding member is further slid against the force of the coil spring to move the shutter and mask the objective lens.

REFERENCES:
patent: 5615196 (1997-03-01), Kato
patent: 5995467 (1999-11-01), Ohyama et al.
patent: 6430143 (2002-08-01), Kajiyama et al.
patent: 6445674 (2002-09-01), Morita
patent: 1313094 (2003-05-01), None

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