Apparatus for controlling the write beam in an optical data reco

Details Apparatus for controlling the write beam in an optical data reco Apparatus for controlling the write beam in an optical data reco

1982-11-12

1985-12-31

Faber, Alan

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

369116, 369111, 369 54, 346 76L, 250205, G11B 700

Patent

active

045625670

ABSTRACT:
Apparatus for recording data by means of a beam of radiation on a recording medium which upon exposure to the beam undergoes optically detectable changes in the form of pits, which apparatus includes means for reducing the beam intensity as a result of pit initiation thereby forming more accurate pits.

REFERENCES:
patent: 4005259 (1977-01-01), Kaneko
patent: 4051329 (1977-09-01), Blondet
patent: 4283785 (1981-08-01), Miyauchi
patent: 4488277 (1984-12-01), McFarlane

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