Optical recording medium
AssigneeTDK Corporation
InventorsTakashi Horai, Hiroyuki Arioka, Narutoshi Fukuzawa, Syuji Tsukamoto
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Abstract
An optical recording medium can be recorded at a high linear velocity of at least 10 m/s while maintaining an excellent light stability and favorable reflectance. A recording medium is constructed of a recording layer on a substrate, the recording layer including a first dye with a maximum absorption wavelength in a thin-film state of 450 nm to 620 nm inclusive as a first dye and being formed so as to include a second dye with an extinction coefficient of at least 0.5 for a recording wavelength. In this case, it is preferable for the second dye to have a maximum absorption wavelength of 620 nm to 750 nm inclusive in a thin-film state.
Claims16
An optical recording medium constructed by providing, on a substrate, a recording layer including a first dye, which in a thin-film state has a maximum absorption wavelength of 450 nm to 620 nm inclusive, as a main component,
- the recording layer of the optical recording medium being formed so as to include a second dye with an extinction coefficient of at least 0.5 for a recording wavelength.
Dependencies are inferred from the claim text.