FR2402275A1 - Perfectionnements apportes aux disques video - Google Patents

Perfectionnements apportes aux disques video

Info

Publication number
FR2402275A1
FR2402275A1 FR7812121A FR7812121A FR2402275A1 FR 2402275 A1 FR2402275 A1 FR 2402275A1 FR 7812121 A FR7812121 A FR 7812121A FR 7812121 A FR7812121 A FR 7812121A FR 2402275 A1 FR2402275 A1 FR 2402275A1
Authority
FR
France
Prior art keywords
layer
light
additional
laser beam
matrix
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
FR7812121A
Other languages
English (en)
Other versions
FR2402275B1 (fr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RCA Corp
Original Assignee
RCA 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 RCA Corp filed Critical RCA Corp
Publication of FR2402275A1 publication Critical patent/FR2402275A1/fr
Application granted granted Critical
Publication of FR2402275B1 publication Critical patent/FR2402275B1/fr
Granted legal-status Critical Current

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
    • 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
    • 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
    • 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
    • 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
    • G11B2007/2571—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 containing group 14 elements except carbon (Si, Ge, Sn, Pb)
    • 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
    • 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
    • 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
    • G11B2007/25715—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 containing oxygen
    • 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
    • G11B7/242—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
    • G11B7/244—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 organic materials only
    • G11B7/246—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 organic materials only containing dyes
    • 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
    • G11B7/258—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 reflective layers
    • G11B7/2585—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 reflective layers based on aluminium
    • 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
    • G11B7/258—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 reflective layers
    • G11B7/2595—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 reflective layers based on gold

Landscapes

  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)

Abstract

Matrice d'enregistrement destinée à être utilisée avec un faisceau laser d'enregistrement donnant une lumière de fréquence déterminée, qui comprend : - une couche d'un matériau réfléchissant la lumière; - une couche d'un matériau absorbant la lumière, recouvrant ledit matériau réfléchissant, cette matrice étant caractérisée en ce qu'elle comporte, sur ladite couche absorbant la lumière, une couche protectrice supplémentaire mince, inerte, transparente et dure, afin d'éliminer de cette couche supplémentaire tout agent susceptible d'en contaminer la surface, l'épaisseur de cette couche supplémentaire étant une fonction de la longueur d'onde dudit faisceau laser et de l'indice de réfraction du matériau constituant cette couche supplémentaire, pour cette longueur d'onde.
FR7812121A 1977-08-29 1978-04-25 Perfectionnements apportes aux disques video Granted FR2402275A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US82881677A 1977-08-29 1977-08-29

Publications (2)

Publication Number Publication Date
FR2402275A1 true FR2402275A1 (fr) 1979-03-30
FR2402275B1 FR2402275B1 (fr) 1985-03-15

Family

ID=25252817

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7812121A Granted FR2402275A1 (fr) 1977-08-29 1978-04-25 Perfectionnements apportes aux disques video

Country Status (8)

Country Link
JP (1) JPS5437739A (fr)
DE (1) DE2817945A1 (fr)
FR (1) FR2402275A1 (fr)
GB (1) GB1603761A (fr)
HK (1) HK77386A (fr)
MY (1) MY8500779A (fr)
NL (1) NL191296C (fr)
SG (1) SG38384G (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2402276A1 (fr) * 1977-08-29 1979-03-30 Rca Corp Milieu d'enregistrement optique a couches multiples
FR2478858A1 (fr) * 1980-03-18 1981-09-25 Asahi Chemical Ind Support d'enregistrement
FR2594585A1 (fr) * 1986-02-13 1987-08-21 Central Glass Co Ltd Carte d'enregistrement optique de l'information utilisant un melange de polymeres comme materiau d'enregistrement

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5522961A (en) * 1978-08-07 1980-02-19 Fuji Photo Film Co Ltd Thermal recording material
US4357616A (en) * 1979-03-26 1982-11-02 Hitachi, Ltd. Recording medium
JPS56161199A (en) * 1980-05-16 1981-12-11 Fuji Photo Film Co Ltd Recording of information using information recording medium
JPS5766544A (en) * 1980-10-14 1982-04-22 Fujitsu Ltd Optical disk medium
JPS6480591A (en) * 1987-09-24 1989-03-27 Nippon Denso Co Optical information recording medium

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3665483A (en) * 1969-06-06 1972-05-23 Chase Manhattan Capital Corp Laser recording medium
DE2522928A1 (de) * 1974-05-25 1975-12-04 Canon Kk Aufzeichnungstraeger und -verfahren
US4023185A (en) * 1976-03-19 1977-05-10 Rca Corporation Ablative optical recording medium
FR2344916A1 (fr) * 1976-03-19 1977-10-14 Rca Corp Milieu d'enregistrement optique par ablation
FR2385535A1 (fr) * 1977-03-28 1978-10-27 Rca Corp Perfectionnement a un support d'information
FR2402276A1 (fr) * 1977-08-29 1979-03-30 Rca Corp Milieu d'enregistrement optique a couches multiples

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3911444A (en) * 1974-04-04 1975-10-07 Bell Telephone Labor Inc Metal film recording media for laser writing

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3665483A (en) * 1969-06-06 1972-05-23 Chase Manhattan Capital Corp Laser recording medium
DE2522928A1 (de) * 1974-05-25 1975-12-04 Canon Kk Aufzeichnungstraeger und -verfahren
US4023185A (en) * 1976-03-19 1977-05-10 Rca Corporation Ablative optical recording medium
FR2344916A1 (fr) * 1976-03-19 1977-10-14 Rca Corp Milieu d'enregistrement optique par ablation
FR2385535A1 (fr) * 1977-03-28 1978-10-27 Rca Corp Perfectionnement a un support d'information
FR2402276A1 (fr) * 1977-08-29 1979-03-30 Rca Corp Milieu d'enregistrement optique a couches multiples

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2402276A1 (fr) * 1977-08-29 1979-03-30 Rca Corp Milieu d'enregistrement optique a couches multiples
FR2478858A1 (fr) * 1980-03-18 1981-09-25 Asahi Chemical Ind Support d'enregistrement
FR2594585A1 (fr) * 1986-02-13 1987-08-21 Central Glass Co Ltd Carte d'enregistrement optique de l'information utilisant un melange de polymeres comme materiau d'enregistrement

Also Published As

Publication number Publication date
NL7804656A (nl) 1979-03-02
SG38384G (en) 1985-03-08
FR2402275B1 (fr) 1985-03-15
JPS641315B2 (fr) 1989-01-11
NL191296C (nl) 1995-05-01
DE2817945A1 (de) 1979-03-15
MY8500779A (en) 1985-12-31
DE2817945C2 (fr) 1987-10-08
GB1603761A (en) 1981-11-25
NL191296B (nl) 1994-12-01
HK77386A (en) 1986-10-24
JPS5437739A (en) 1979-03-20

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