Information storage medium, reproducing method, and...

G - Physics – 11 – B

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G11B 7/24 (2006.01) B41M 5/26 (2006.01) G11B 7/0045 (2006.01) G11B 7/005 (2006.01) G11B 7/007 (2006.01) G11B 7/244 (2006.01)

Patent

CA 2558599

A light absorbance is significantly lowered, and recording sensitivity is lowered with a light beam having a wavelength equal to or smaller than 620 nm under the influence of absorption spectrum characteristics of a general organic dye material. By employing an "L-H" organic dye recording material in which a reflection factor is increased from a non-recording portion to a recorded portion (recording mark), substrate deformation is eliminated, and recording sensitivity is improved by forming a recording mark using a discoloring action due to dissociation of electron coupling.

L'absorbance de lumière est considérablement réduite, et la sensibilité d'enregistrement est réduite avec un faisceau lumineux ayant une longueur d'onde égale ou inférieure à 620 nm sous l'influence des caractéristiques de spectre d'absorption d'un matériau colorant organique général. Grâce à l'utilisation d'un matériau d'enregistrement à base de colorant organique "L-H" dans lequel un facteur de réflexion s'accroît depuis une portion de non enregistrement vers une portion enregistrée (repère d'enregistrement), la déformation de substrat est éliminée, et la sensibilité d'enregistrement est améliorée par la formation d'un repère d'enregistrement utilisant une action de décoloration due à la dissociation de couplage électronique.

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