Optical disk cutting apparatus using multiple beams

Details Optical disk cutting apparatus using multiple beams Optical disk cutting apparatus using multiple beams

1985-03-20

1987-02-24

Psistos, Aristotelis M.

Dynamic information storage or retrieval

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

Mechanism control by the control signal

369 44, 369109, 369111, 346108, G11B 700

Patent

active

046462791

ABSTRACT:
Disk cutting apparatus, in which a plurality of beams are generated simultaneously from a laser light source by means of an ultrasonic light deflector, of which beams enter a common focussing lens; the light deflector is so controlled that each spot of the plurality of beams is located on the surface of the disk exactly with a desired track pitch in the radial direction of the disk and when the disk is rotated once a plurality of coaxial tracks are formed simultaneously.

REFERENCES:
patent: 3635545 (1972-01-01), Vankerkhove et al.
patent: 4449212 (1984-05-01), Reno
patent: 4449215 (1984-05-01), Reno
patent: 4459690 (1984-07-01), Corsover et al.

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