MXPA00001574A - Medio de registro optico. - Google Patents

Medio de registro optico.

Info

Publication number
MXPA00001574A
MXPA00001574A MXPA00001574A MXPA00001574A MXPA00001574A MX PA00001574 A MXPA00001574 A MX PA00001574A MX PA00001574 A MXPA00001574 A MX PA00001574A MX PA00001574 A MXPA00001574 A MX PA00001574A MX PA00001574 A MXPA00001574 A MX PA00001574A
Authority
MX
Mexico
Prior art keywords
recording layer
recording medium
absorption rate
optical recording
crystallization
Prior art date
Application number
MXPA00001574A
Other languages
English (en)
Inventor
Yutaka Kasami
Osamu Kawakubo
Original Assignee
Sony Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sony Corp filed Critical Sony Corp
Publication of MXPA00001574A publication Critical patent/MXPA00001574A/es

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
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    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
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    • G11B7/254—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of protective topcoat layers
    • G11B7/2542—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of protective topcoat layers consisting essentially of organic resins
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    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
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    • G11B7/257—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers
    • G11B7/2578—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers consisting essentially of inorganic materials
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
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    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
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    • G11B7/243—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising inorganic materials only, e.g. ablative layers
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    • G11B2007/25705—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers consisting essentially of inorganic materials
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y10S430/00—Radiation imagery chemistry: process, composition, or product thereof
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Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Optical Head (AREA)

Abstract

Un medio de registro optico de cambio de fase que permite la sobreescritura directa optima aun bajo condiciones de densidad y alta velocidad sin degradar la durabilidad de repeticion o la estabilidad de almacenamiento de las senales registradas. Para este fin, el medio de registro optico de cambio de fase tiene una capa de registro formada por lo menos de un material de cambio de fase y se registra y/o reproduce con un haz de luz laser que tiene una longitud de onda que varia entre 380 nanometros y 420 nanometros. Una relacion de Ac/Aa, en donde Ac es el regimen de absorcion de la capa de registro en un estado cristalino y Aa es el regimen de absorcion de la capa de registro en un estado amorfo, es no menor de 0.9, y una capa promotora de cristalizacion promueve la cristalizacion del material de cambio de fase en contacto con por lo menos una superficie de la capa de registro. Explotando el control del regimen de absorcion y la promocion de cristalizacion en combinacion, es posible compensar de manera positiva la diferencia entre las propiedades fisicas de la fase de cristal y aquellas de la fase amorfa para obtener una sobreescritura directa optima.
MXPA00001574A 1999-02-13 2000-02-15 Medio de registro optico. MXPA00001574A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP7424799 1999-02-13
JP18684399A JP2000298875A (ja) 1999-02-13 1999-06-30 光記録媒体

Publications (1)

Publication Number Publication Date
MXPA00001574A true MXPA00001574A (es) 2007-06-29

Family

ID=26415367

Family Applications (1)

Application Number Title Priority Date Filing Date
MXPA00001574A MXPA00001574A (es) 1999-02-13 2000-02-15 Medio de registro optico.

Country Status (6)

Country Link
US (1) US6312780B1 (es)
JP (1) JP2000298875A (es)
AU (1) AU758976B2 (es)
BR (1) BR0000895B1 (es)
MX (1) MXPA00001574A (es)
TW (1) TW480480B (es)

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EP1152407A3 (en) * 2000-04-25 2006-10-25 Matsushita Electric Industrial Co., Ltd. Optical disk, method for producing the same, and apparatus for producing the same
JP2001319370A (ja) * 2000-05-11 2001-11-16 Nec Corp 相変化光ディスク
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US6967050B2 (en) * 2000-07-05 2005-11-22 Sony Corporation Optical recording medium and a method of manufacturing the same
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JP2002117576A (ja) * 2000-10-03 2002-04-19 Tdk Corp 光記録媒体および光学的情報記録方法
JP2002117577A (ja) * 2000-10-03 2002-04-19 Tdk Corp 光記録媒体および光学的情報記録方法
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