Optical recording medium
AssigneeTDK Corporation
InventorsKenryo Namba, Shigeru Asami, Toshiki Aoi, Kazuo Takahashi, Akihiko Kuroiwa
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Abstract
This invention relates to an optical recording medium comprising a recording layer of a dye or dye composition on a substrate and adapted to be written and read using light such as laser or the like. The optical recording medium of the invention is characterized by further comprising a surface layer formed of a coating of a colloidal particle dispersion of a silicon base condensate on the recording layer, with improved S/N ratio as well as improved writing sensitivity and reading output of the optical recording medium.
Claims30
An optical recording medium susceptible of being read and written on by the formation of pits in the recording layer thereof comprising a recording layer formed of a dye or dye composition on a substrate, characterized in that the medium further comprises on the recording layer a surface layer formed of a coating of a colloidal particle dispersion of a silicon based condensate which surface layer is capable of enhancing the writing sensitivity of the optical recording medium.
Dependencies are inferred from the claim text.