Magneto-optical disc

Details Magneto-optical disc Magneto-optical disc

1994-02-07

1996-12-31

Kiliman, Leszek

Stock material or miscellaneous articles

Circular sheet or circular blank

Recording medium or carrier

428 647, 428 651, 428694ML, 428694ST, 428694SL, 428900, 369 13, 369110, 3692751, G11B 566, B32B 302

Patent

active

055892442

ABSTRACT:
A magneto-optical disc has a resin substrate and a magneto-optical film. A birefringence distribution of the substrate in a static state is so set that a disc phase difference during rotation of the disc is eliminated.

REFERENCES:
patent: 4841501 (1985-06-01), Izuka
patent: 4877666 (1985-10-01), Muchnik
Patent Abstracts of Japan, Kokai No. 2-122443, vol. 14, No. 345, Jul. 1990.
Patent Abstracts of Japan, Kokai No. 3-86946, vol. 15, No. 266, Jul. 1991.

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