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Optical information recording medium

A technology for optical information and recording media, applied in optical recording media, optical recording/reproduction, data recording, etc., can solve problems such as optical system complexity, and achieve the effect of improving recording speed

Inactive Publication Date: 2011-10-05
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, the optical information recording medium disclosed in the above document has a disadvantage that its optical system is complicated because it is necessary to use two systems of light beams

Method used

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  • Optical information recording medium
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Examples

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Effect test

example 2

[0236] (4-2-1) Formation of samples

[0237] In a similar manner to Example 1, samples S11 to S14 were formed as optical information recording media 100 . In addition, as comparative samples, comparative samples R11 to R13 were also formed as the optical information recording medium 100 .

[0238] In Example 2, in addition to the photopolymerization initiators A, D, and E used in Example 1, one type of photopolymerization initiator (shown below), which is called photopolymerization initiator F, was used.

[0239] Photopolymerization initiator F: bis(tert-butylphenyl) iodine hexafluoroantimonate (general formula 5)

[0240] In addition, the fluorene bifunctional epoxy is a monomer having a fluorene structure represented by general formula (1) and two functionalized epoxy groups (EX1020, manufactured by Osaka Gas Chemical Co., Ltd.).

[0241] The monomers and photopolymerization initiators used in the samples S11 to S14 and the liquid substance M1 of the comparative samples R1...

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Abstract

An optical information recording medium includes a recording layer that absorbs recording light in accordance with its wavelength, the recording light being condensed for information recording, and increases the temperature in the vicinity of a focus so as to form a recording mark and that has properties of increasing a light absorption amount with respect to the wavelength of the recording lightwhen light having the wavelength of the recording light is radiated.

Description

technical field [0001] The present invention relates to an optical information recording medium preferably used as an optical information recording medium in which, for example, information is recorded using a light beam and information is reproduced using a light beam. Background technique [0002] In the past, disc-shaped optical information recording media have been widely used as optical information recording media, and compact discs (CDs), digital versatile discs (DVDs), Blu-ray Discs (registered trademark, hereinafter referred to as BDs) and the like are generally used. [0003] In addition, in order to record various information on the optical information recording medium, such as recording various types of content (including music content, picture content) or recording various types of data for computers, optical information recording media using the above-mentioned optical information recording medium have been devised. Recording / reproducing equipment. Especially i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G11B7/24G11B7/242G11B7/24035
Inventor 铃木悠介工藤孝夫林部和弥三浦克美内山浩
Owner SONY CORP
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