Electromagnetic objective lens driving apparatus including direc

Details Electromagnetic objective lens driving apparatus including direc Electromagnetic objective lens driving apparatus including direc

1995-01-04

1996-06-11

Levy, Stuart S.

Dynamic information storage or retrieval

Dynamic mechanism subsystem

Having power driven transducer assembly

369 4415, 359814, G11B 708, G11B 2122

Patent

active

055263402

ABSTRACT:
An electromagnetic objective lens driving apparatus of optical data recording and reproducing apparatus includes a carriage that is movable in a radial direction of an optical disc and an objective lens holder which supports an objective lens in a manner such that laser beams are converged onto the optical disc. The objective lens holder is supported on the carriage and is movable in the focusing and the tracking directions of the optical disc. The apparatus further includes focusing and tracking coils provided on the objective lens holder, and a plastic molded piece provided on the carriage and having electrical wiring that is electrically connected to the focusing and tracking coils.

REFERENCES:
patent: 4750164 (1988-06-01), Nose
patent: 4782476 (1988-11-01), Sekimoto et al.
patent: 5018836 (1991-05-01), Noda et al.
patent: 5073883 (1991-12-01), Mitsumori
patent: 5257145 (1993-10-01), Kanazawa et al.
patent: 5321678 (1994-06-01), Takishima et al.

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