Immediate write, read, and erase optical storage medium and meth

Details Immediate write, read, and erase optical storage medium and meth Immediate write, read, and erase optical storage medium and meth

1989-10-17

1990-12-04

Michl, Paul R.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

430270, 430271, 430273, 430945, 428 64, 3461351, G03C 100, G03C 1492, B32B 302, G01D 900

Patent

active

049753584

ABSTRACT:
An optical data storage medium comprises a substrate layer, a recording medium and an optional protective layer. The substrate layer supports the recording medium. The recording medium comprises a polymer having stable amorphous and crystalline states under human operating conditions which states have different optical properties. The recording medium is optionally covered and protected by a protective layer. The substrate, recording medium and protective layer can be formed from the same or different polymers. The data is stored by exposing the recording medium to patterned infra-red radiation. The radiation can be patterned by a mask, movement of the radiation beam or by other means to imprint the data on the recording medium.

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Pearson, "Polymeric Optical Disk Recording Media", CRC Critical Reviews in olid State & Materials Sciences, 13(1), pp. 1-26 (1986).
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Andrew et al., Appl. Phys. Lett., 43(8), pp. 717-719, Oct. 15, 1983.
Srinivasan et al., J. Polymer Science Chemistry Edition, 22, pp. 2601-2609, 1984.
Fang et al., Polymer Engineering & Science, vol. 29, No. 18, pp. 1241-1245, Sep. 1989.

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