Optical information recorder

Details Optical information recorder Optical information recorder

1987-09-16

1989-06-06

Sikes, William L.

Dynamic information storage or retrieval

Information location or remote operator actuated control

Selective addressing of storage medium

369 45, 250201, G11B 700, G11B 2108

Patent

active

048377597

ABSTRACT:
An optical information recorder in which a focusing unit is coupled through a piezoelectric unit to a screw driven carriage. The screw is used for rough adjustment and the piezoelectric unit for fine adjustment.

REFERENCES:
patent: 4342935 (1982-08-01), Kallmeyer et al.
patent: 4363116 (1982-12-01), Kleuters et al.
patent: 4626673 (1986-12-01), Struye
patent: 4677603 (1987-06-01), Kenjyo

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