Optical information storage material and method of making it

Details Optical information storage material and method of making it Optical information storage material and method of making it

1976-11-18

1978-05-23

Hoffman, James R.

Stock material or miscellaneous articles

Metal continuous phase interengaged with nonmetal continuous...

427162, 427164, 427166, 427248A, 427248R, 428913, B05D 134, G11B 1112, G11B 2300

Patent

active

040911713

ABSTRACT:
An optical information storage material having a substrate and a film deposited on the substrate, the state of said material can be changed from a low optical density state to a high optical density state by the application of electrical, optical or thermal energy. The major component of the film is GeO.sub.x1, SnO.sub.x1, SbO.sub.x2, TlO.sub.x2, BiO.sub.x2 or MoO.sub.x3 wherein 0 < x1 < 2.0, 0 < x2 < 1.5 and 0 < x3 < 3.0. The film can be a mixture of above-mentioned material and an additive for improving the properties thereof. The material is made by vacuum evaporating GeO.sub.2, SnO.sub.2, Sb.sub.2 O.sub.3, Tl.sub.2 O.sub.3, Bi.sub.2 O.sub.3 or MoO.sub.3 under deoxidization conditions.

REFERENCES:
patent: 3455724 (1969-07-01), Tegg et al.
patent: 3971874 (1976-07-01), Ohta et al.

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