Optical recording medium

Details Optical recording medium Optical recording medium

1997-08-08

1999-09-21

Evans, Elizabeth

Stock material or miscellaneous articles

Circular sheet or circular blank

428 642, 428 644, 428 647, 428 648, 428457, 428913, 43027012, 4304951, 430945, 3692754, 369283, 369288, B32B 300

Patent

active

059551682

ABSTRACT:
In the optical recording medium including a substrate having pregrooves, and a metal recording layer, a buffering layer, a reflecting layer and a protecting layer which are sequentially stacked on the substrate, wherein the buffering layer is formed of an organic material having a low light absorption with respect to a laser beam of 600.about.800 nm, such that light absorption (k) is less than or equal to 1.0 at 650 nm and the light absorption (k) is less than or equal to 0.1 at 780 nm. Therefore, the optical recording medium can be compatible with a compact disc (CD) and have a high reflectivity at longer wavelength than 600 nm.

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