Optical recording medium

Details Optical recording medium Optical recording medium

1983-02-15

1985-09-03

Hartary, Joseph W.

Recorders

Record receivers and/or driving means therefor

Laminated, impregnated, or coated bases

346 76L, 369284, 430945, G01D 1534

Patent

active

045395721

ABSTRACT:
An optical recording medium containing a light-absorbing film of refractory material less than 60 nm thick and selected from carbides of Al, Hf, Nb, Ta, Ti, V, W, and Zr and alloys herebetween, whereupon localized heating of the light-absorbing film enables information storage in the form of localized features in the heated areas which can subsequently be optically detected and can be used as a master information record for replication purposes.

REFERENCES:
patent: 3716844 (1973-02-01), Brodsky
patent: 4285056 (1981-08-01), Bell
patent: 4335198 (1982-06-01), Hanada
patent: 4379299 (1983-04-01), Fitzpatrick
patent: 4430659 (1984-02-01), Maffitt
patent: 4433340 (1984-02-01), Mashita
patent: 4470053 (1984-09-01), Maffitt
Laser-Created Bubbles Proposed for Archival Optical Data Storage, Laser Focus, Jun. 1981.
Robbins et al., Bubble Forming Media for Optical Recording; CLEO 1981, Washington, D.C., Jun. 11, 1981.

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