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

1974-08-26

1976-07-27

Husack, Ralph

Stock material or miscellaneous articles

Composite

Of quartz or glass

346 76L, 346 76R, 350160P, 427162, 427166, 427248, 428422, 428480, 428537, 428539, 428913, C23C 304, G01D 1534

Patent

active

039718743

ABSTRACT:
An optical information storage material having a transparent base and a film deposited on the base, the state of which can be changed between a low optical density state and a high optical density state by the application of electrical, optical or thermal energy. The film is a tellurium oxide having the composition TeO.sub.x1 in which 0<x1<2.0, or a mixture of such a tellurium oxide and vanadium oxide for making it easier to change the state of the film material, or tellurium oxide and lead oxide for increasing the sensitivity of the film. The material is made by vacuum evaporating and depositing the tellurium oxide or the mixture of tellurium oxide with the vanadium or lead oxide from TeO.sub.2 or a solid solution of TeO.sub.2 and lead or vanadium oxide.

REFERENCES:
patent: 3406085 (1968-10-01), Brown et al.
patent: 3445271 (1969-05-01), Jensen
patent: 3455724 (1969-07-01), Teeg et al.
patent: 3516720 (1970-06-01), Mauer
patent: 3565671 (1971-02-01), Teeg et al.
patent: 3665483 (1972-05-01), Becker et al.
patent: 3704467 (1972-11-01), Frock
patent: 3761942 (1973-09-01), Lorenz et al.
patent: 3831165 (1974-08-01), Chivian et al.

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