Optical information recording method and medium

Dynamic information storage or retrieval – Storage medium structure – Layered

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3692751, 3692753, 3692754, 369286, 369100, 428 65, 346 76L, G11B 584

Patent

active

051557231

ABSTRACT:
A method for optically recording information on an optical information recording medium comprising a light transmitting substrate, a light absorptive layer overlaying the substrate to absorb a laser beam and a light reflective layer overlaying the light absorptive layer, which comprises energizing the light absorptive layer by a laser beam entered through the light transmitting substrate, and locally deforming, by the energy thereby generated by the light absorptive layer, a surface layer of the substrate adjacent to the light absorptive layer, to form optically readable pits in the surface layer of the substrate.

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