Optical recording medium and method for producing same

Details Optical recording medium and method for producing same Optical recording medium and method for producing same

1997-06-04

2000-04-11

Ometz, David L.

Dynamic information storage or retrieval

Storage medium structure

Specific disc profile

3692751, 3692753, 3692754, G11B 370, G11B 724

Patent

active

060495219

ABSTRACT:
An optical recording medium having a substrate 1 and one or more recording layers 2, 4 formed on the substrate 1. A sufficient volume of the laser light is illuminated on the recording layer 4 further away from a light source, while a sufficient amount of the reflected light from the recording layer 4 is received, for realizing optimum recording and/or reproduction for the recording layers 2, 4. To this end, a recording film material of at least the first recording layer looking from the laser light incident side is depleted partially.

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patent: 5726970 (1998-03-01), Kaneko et al.
patent: 5764619 (1998-06-01), Nishiuchi et al.
patent: 5878018 (1999-03-01), Moriya et al.

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