Ablative optical recording medium

Details Ablative optical recording medium Ablative optical recording medium

1977-09-19

1980-12-30

Miller, Jr., George H.

Recorders

Record receivers and/or driving means therefor

Laminated, impregnated, or coated bases

G01D 1534

Patent

active

042426898

ABSTRACT:
An ablative recording medium comprises a substrate coated with a light reflecting layer which in turn is coated with a light absorptive layer of di-indeno[1,2,3-cd:1',2',3'-lm]perylene. During recording, portions of the light absorptive layer are ablated by a modulated focussed light beam, thereby exposing portions of the reflecting layer. Video information is recorded as a reflective-antireflective pattern.

REFERENCES:
patent: 4023185 (1977-05-01), Bloom et al.
patent: 4069487 (1978-01-01), Kasai et al.

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