Ablative optical recording medium

Details Ablative optical recording medium Ablative optical recording medium

1977-09-29

1980-12-23

Miller, Jr., George H.

Recorders

Record receivers and/or driving means therefor

Laminated, impregnated, or coated bases

G01D 1534

Patent

active

042413559

ABSTRACT:
An ablative recording medium comprises a substrate coated with a light reflecting coating which in turn is coated with a light absorptive layer selected from the group consisting of lead phthalocyanine, chloroaluminum phthalocyanine, vanadyl phthalocyanine, stannic phthalocyanine and chloroaluminum chlorophthalocyanine. During recording, portions of the dye layer are ablated or vaporized by an intensity modulated focussed light beam, thereby exposing portions of the reflective layer and recording video information as a reflective-antireflective pattern.

REFERENCES:
patent: 3971874 (1976-07-01), Ohta et al.
patent: 4023185 (1977-05-01), Bloom et al.
patent: 4037075 (1977-07-01), Pugsley et al.

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