Optical pickup device

Details Optical pickup device Optical pickup device

2007-10-23

2007-10-23

Korzuch, William (Department: 2627)

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

Reexamination Certificate

active

10811233

ABSTRACT:
An object of the present invention is to provide an optical pickup device with high reliability and reduced thickness, which can form an accurate beam spot without providing a thin film section in a lens holder and without influence of peripheral light of laser beam. There is provided an optical pickup device for driving and controlling a lens holder1holding an objective lens4by using a moving coil method, and adjusting an irradiation position of laser beam on an optical disk by displacing the objective lens4, wherein a cut-out portion1dis formed at a position closest to a rising mirror10on an opening1awhich is formed in the lens holder1for holding the objective lens4, and a light-shielding ring R for sealing the cut-out portion1dis arranged to fix the objective lens4.

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patent: 6819491 (2004-11-01), Takahashi et al.
patent: 7082084 (2006-07-01), Kabasawa
patent: 2001/0021164 (2001-09-01), Fujii et al.
patent: 09-007204 (1997-01-01), None
patent: 2003-109234 (2003-04-01), None
patent: WO 02103430 (2002-12-01), None

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