Optical recording medium

Details Optical recording medium Optical recording medium

1994-12-19

1996-11-12

Levy, Stuart S.

Dynamic information storage or retrieval

Storage medium structure

Specified material

43027019, 43027021, 428 644, G11B 724, G03C 172

Patent

active

055747159

ABSTRACT:
An optical recording medium having a recording layer and a reflective layer closely stacked on a substrate, wherein recording is carried out by directing recording light to the recording layer to form pits and reproduction is carried out by directing reproducing light to the recording layer. The recording layer contains a light absorbing dye, typically cyanine dye and a bisphenylenedithiol copper complex quencher in either independent form or ionically bonded form. The quencher characterized by a low coefficient of extinction can be added in a sufficient amount to provide the recording layer with light resistance while maintaining recording/reproducing performance.

REFERENCES:
patent: 4713314 (1987-12-01), Namba et al.
patent: 4735889 (1988-04-01), Namba et al.
patent: 4737443 (1988-04-01), Niwa et al.
patent: 4968593 (1990-11-01), Inagaski et al.
patent: 4990433 (1991-02-01), Yoshida
patent: 4999281 (1991-03-01), Inagaki et al.

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