Optical information recording medium

Details Optical information recording medium Optical information recording medium

1991-06-10

1993-03-02

LaRoche, Eugene R.

Dynamic information storage or retrieval

Storage medium structure

Layered

369283, 369286, G11B 370

Patent

active

051915650

ABSTRACT:
Disclosed is an optical information recording medium which comprises an active layer which undergoes phase change upon irradiation with light and protective layers formed on both the sides of the active layer, wherein the thermal capacity of the active layer which is a heat source is decreased, a reflection layer of high thermal conductivity is provided on the protective layer to cause increase of the coefficient of lines expansion of the protective layer with increase in distance from the active layer or the thickness of each layer is specified to make nearly the constant maximum temperature by irradiated light against a change in the thickness of the active layer.

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patent: 4954379 (1990-09-01), Nishida et al.
Philip M. Heyman, High Performance Erasable Optical Disc, Proceedings of SPIE, Optical Storage Media, 420, pp. 162-167, 1983.
M. Chen et al., Compound Materials for Reversible, Phase-Change Optical Data Storage, Applied Physics Letters, vol. 49, No. 9, pp. 502-504, 1986.

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