Phase-change type optical information recording medium

Details Phase-change type optical information recording medium Phase-change type optical information recording medium

2005-04-26

2005-04-26

Chen, Tianjie (Department: 2652)

Dynamic optical information storage or retrieval

Optical storage medium structure

Reexamination Certificate

active

06886177

ABSTRACT:
The phase-change type optical information recording medium includes a transparent substrate, a first protective layer on the substrate, a recording layer on the first protective layer, a second protective layer on the recording layer, and a reflective layer on the second protective layer. Assuming that minimum recording linear velocity is V1and maximum recording linear velocity is V2, then a value of ratio I(V2)/I(V1) of a degree of modulation corresponding to the maximum and minimum linear velocities is between 1 and 1.2.

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