Driving device for objective lens and optical pick up using...

Details Driving device for objective lens and optical pick up using... Driving device for objective lens and optical pick up using...

2008-05-20

2008-05-20

Korzuch, William (Department: 2627)

Dynamic optical information storage or retrieval

Dynamic mechanism optical subsystem

Transducer carriage or actuator

C369S044150

Reexamination Certificate

active

11109617

ABSTRACT:
To reduce vibrations occurring in an objective lens driving apparatus there is provided an objective lens driving apparatus used in an optical pickup that reads/writes information from or onto an optical disk using an objective lens. The objective lens driving apparatus has a lens holder that holds an objective lens in a center part thereof, and a plurality of tracking coils that are disposed on both sides of the lens holder. The mass of a pair of first tracking coils that are disposed on one of the sides is greater than the mass of a pair of second tracking coils that are disposed on the other side.

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patent: 6825999 (2004-11-01), Suzuki et al.
patent: 7107602 (2006-09-01), Kimura et al.
patent: 2003/0016597 (2003-01-01), Haruguchi et al.
patent: 2005/0190662 (2005-09-01), Rosmalen
patent: 2004-139699 (2004-05-01), None
patent: 2004-171662 (2004-06-01), None

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