Electromagnetic objective lens driving apparatus of optical data

Details Electromagnetic objective lens driving apparatus of optical data Electromagnetic objective lens driving apparatus of optical data

1997-06-17

1999-05-11

Klimowicz, William J.

Dynamic information storage or retrieval

Dynamic mechanism subsystem

Having power driven transducer assembly

369 4415, 359814, 359819, G11B7/09;7/12

Patent

active

059035390

ABSTRACT:
An electromagnetic objective lens driving apparatus of an optical disc data recording and reproducing apparatus, includes a magnetic circuit which forms an electromagnetic driving circuit with focusing and tracking coils provided on an objective lens holder. The focusing coils and tracking coils comprise magnetic material that can be attracted by a magnetic force.

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