Device for focus and alignment control in optical recording and/

Details Device for focus and alignment control in optical recording and/ Device for focus and alignment control in optical recording and/

1980-11-10

1983-05-24

Wolff, John H.

Dynamic information storage or retrieval

Control of storage or retrieval operation by a control...

Mechanism control by the control signal

G11B 712

Patent

active

043853730

ABSTRACT:
A device for controlling focus and alignment of a light beam, e.g. in apparatus for optical recording and playback with high density data storage media such as optical discs, includes a plurality of independently addressable piezoelectric bender elements which control the position of lens means of such apparatus. The bender elements can be selectively addressed with electric fields to effect focus and/or tracking alignment adjustments of the active light beam.

REFERENCES:
patent: 3650187 (1972-03-01), Judin
patent: 3794410 (1974-02-01), Elliott
patent: 3924063 (1975-12-01), Simons
patent: 3932700 (1976-01-01), Snopko
patent: 3974327 (1976-08-01), Van Dijk
patent: 3997715 (1976-12-01), Elliott
patent: 4011400 (1977-03-01), Simons et al.
patent: 4034403 (1977-07-01), Compaan et al.
patent: 4059841 (1977-11-01), Bricot et al.
patent: 4135206 (1979-01-01), Kleuters et al.
patent: 4151570 (1979-04-01), Ravizza et al.
patent: 4170397 (1979-10-01), Botcherby et al.
patent: 4193091 (1980-03-01), Kleuters et al.
patent: 4291958 (1981-09-01), Frank et al.
patent: 4302830 (1981-11-01), Hamaoka et al.
patent: 4303324 (1981-12-01), Marcus

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