Object lens holder and driving device

Details Object lens holder and driving device Object lens holder and driving device

1991-02-11

1993-04-27

Young, Wayne R.

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

359814, 359824, G11B 712

Patent

active

052068498

ABSTRACT:
An objective lens actuator for an optical storage drive includes a cross-sectionally L-shaped torsion plate spring which is fixed at its central portion to an objective lens holder and at its opposite ends to free ends of a pair of parallel spaced, cantilevered plate springs. The torsion plate spring is caused to twist to displace the objective lens holder and an objective lens mounted thereon in the tracking direction. The parallel spaced plate springs are caused to bend to displace the objective lens holder and the objective lens in the focusing direction.

REFERENCES:
patent: 4475179 (1984-10-01), Geyer
patent: 4794580 (1988-12-01), Ikeda et al.
patent: 4911534 (1990-03-01), Henegouwen et al.
patent: 5072433 (1991-12-01), Tanaka
Patent Abstracts of Japan, unexamined applications, P field, vol. 13, No. 7, Jan. 10, 1989, p. 106, P 810, JP63-214931.
Patent Abstracts of Japan, unexamined applications, P field, vol. 12, No. 266, Jul. 26, 1988, p. 72, P 735, JP63-50925 and JP63-50926.
Patent Abstracts of Japan, unexamined applications, P field, vol. 13, No. 175, Apr. 25, 1989, p. 4, P 863, JP1-7341.

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