Optical information recording medium, and substrate and manufacturing method for the optical information recording medium

In an optical disk including at least a rewritable phase change material and comprising a recording layer having a reflectivity of more than 15%, an address output value as an address pit signal component occupying in a reproduced signal in a non recording state is prescribed to be 0.18 though 0.27...

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Main Authors Kondo, Tetsuya, Nakagawa, Eiji, Nagano, Hirofumi
Format Patent
LanguageEnglish
Published 29.07.2008
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Abstract In an optical disk including at least a rewritable phase change material and comprising a recording layer having a reflectivity of more than 15%, an address output value as an address pit signal component occupying in a reproduced signal in a non recording state is prescribed to be 0.18 though 0.27 or a numerical aperture of an address pit signal occupying in a reproduced signal in a non recording state is prescribed to be more than 0.3.
AbstractList In an optical disk including at least a rewritable phase change material and comprising a recording layer having a reflectivity of more than 15%, an address output value as an address pit signal component occupying in a reproduced signal in a non recording state is prescribed to be 0.18 though 0.27 or a numerical aperture of an address pit signal occupying in a reproduced signal in a non recording state is prescribed to be more than 0.3.
Author Nagano, Hirofumi
Kondo, Tetsuya
Nakagawa, Eiji
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References (07-044873) 19950200
Kondo et al. (7072285) 20060700
Kondo (6744725) 20040600
Kondo (6925050) 20050800
Kondo (7088670) 20060800
Kondo (6582793) 20030600
(11-086345) 19990300
Furukawa et al. (6343062) 20020100
Kondo et al. (6930977) 20050800
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