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Optical information recording medium

A technology for recording media and optical information, applied in the directions of optical record carriers, optical recording systems, optical record carrier manufacturing, etc., can solve the problem of difficulty in forming a recording layer, etc., and achieve the effect of improving the recording density

Inactive Publication Date: 2011-11-09
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, in a typical recording layer using single-photon absorption, it is difficult to form a recording layer having, for example, more than ten sublayers

Method used

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  • Optical information recording medium
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Embodiment Construction

[0034] Embodiments of the present invention will now be described, but the present invention is not limited to the following embodiments.

[0035] Descriptions are made in the following order.

[0036] 1. Embodiment of Optical Information Recording Medium

[0037] 2. Embodiment of method for manufacturing optical information recording medium

[0038]

[0039] [Structure of Optical Information Recording Medium]

[0040] An optical information recording medium according to an embodiment of the present invention will now be specifically described.

[0041] figure 1 An optical disc is schematically shown as an example of the optical information recording medium according to the present embodiment.

[0042] The optical disc 10 serving as an optical information recording medium generally has a disc shape as a whole, and an opening 21 for chucking is formed at the center of the optical disc 10 .

[0043] figure 2 is a sectional view for describing the structure of the optic...

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Abstract

An optical information recording medium includes a recording layer, wherein the recording layer includes a thermoplastic resin and inorganic oxide particles dispersed in the thermoplastic resin.

Description

technical field [0001] The present invention relates to an optical information recording medium in which information is recorded using a light beam and information is reproduced therefrom using a light beam. Background technique [0002] Typical examples of the optical information recording medium include a compact disc (CD), a digital video disc (DVD), and a Blu-ray Disc (registered trademark, hereinafter referred to as BD). In the optical information recording medium, there are recorded various types of information including various contents such as music contents and video contents and various data used in computers. In recent years, as video clarity and music sound quality have improved, the amount of information that needs to be recorded has increased. In addition, there is a need to increase the number of contents that can be recorded in a single optical information recording medium. Therefore, an optical information recording medium having a larger capacity is requi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B7/24G11B7/26G11B7/24035
CPCG11B7/251G11B2007/00457G11B2007/0013G11B7/00451G11B7/245
Inventor 太田阳岩村贵
Owner SONY CORP
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