HK51586A - Optical recording medium and method for its formation - Google Patents

Optical recording medium and method for its formation Download PDF

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Publication number
HK51586A
HK51586A HK515/86A HK51586A HK51586A HK 51586 A HK51586 A HK 51586A HK 515/86 A HK515/86 A HK 515/86A HK 51586 A HK51586 A HK 51586A HK 51586 A HK51586 A HK 51586A
Authority
HK
Hong Kong
Prior art keywords
dye
nitrated
recording
medium
substrate
Prior art date
Application number
HK515/86A
Other languages
German (de)
English (en)
Inventor
Richard L. Wilkinson
Michael Michalchik
Original Assignee
Discovision Associates
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=22751484&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=HK51586(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Discovision Associates filed Critical Discovision Associates
Publication of HK51586A publication Critical patent/HK51586A/en

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
    • G11B7/242—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
    • G11B7/2467—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 azo-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
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G11B7/0045—Recording
    • G11B7/00455—Recording involving reflectivity, absorption or colour changes
    • 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
    • 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
    • G11B7/245—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 a polymeric component
    • 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
    • G11B7/26—Apparatus or processes specially adapted for the manufacture of record carriers
    • 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
    • G11B7/253—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 substrates
    • G11B7/2531—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 substrates comprising glass
    • 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
    • G11B7/253—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 substrates
    • G11B7/2533—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 substrates comprising resins

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
  • Duplication Or Marking (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Manufacturing Optical Record Carriers (AREA)

Claims (12)

1. Milieu d'enregistrement pour utilisation d'un appareil d'enregistrement, où un faisceau d'écriture de lumière ayant une intensité prescrite qui varie selon un signal d'information à enregistrer est dirigé au milieu lorsque le milieu est déplacé par rapport à celui-ci, ledit milieu comprenant: un substrat ayant une surface supérieure lisse et une fine couche d'enregistrement recouvrant la surface supérieure du substrat; où, lorsque le milieu est déplacé par rapport au faisceau d'écriture modulé en intensité, la couche d'enregistrement est sélectivement excitée par le faisceau pour induire dans celle-ci des explosions espacées, ainsi des trous correspondants représentatifs du signal d'information sont formés dans la couche d'enregistrement, caractérisé en ce que ladite couche comprend un matériau colorant azo nitré.
2. Milieu d'enregistrement selon la revendication 1, où le matériau colorant nitré a une quantité suffisante de nitrate telle que sensiblement tous les produits de l'explosion sont des gaz non de condensation.
3. Milieu d'enregistrement selon la revendication 2, où le faisceau de lumière a une longueur d'onde prescrite; et le colorant azo a un point de fusion en dessous d'environ 270°C et absorbe relativement hautement le faisceau de lumière.
4. Milieu d'enregistrement selon la revendication 2, où le colorant azo est AMAPLAST-SCARLET MM (marque déposée de American Color and Chemical Co.).
5. Milieu d'enregistrement selon la revendication 1, où le matériau colorant nitré est un polymère.
6. Milieu d'enregistrement selon la revendication 1, où la couche absorbante de lumière comprend en outre un matériau colorant.
7. Procédé de production d'un milieu d'enregistrement convenable pour utilisation dans un appareil d'enregistrement optique d'un type qui dirige sur le milieu un faisceau d'écriture de lumière qui est modulé en intensité selon l'information enregistrée, pour produire une séquence d'indices espacés représentatifs de l'information, le procédé comprenant les étapes de: produire un substrat ayant une surface supérieure plane lisse; nitrer une quantité prescrite de matériau colorant azo pour produire un matériau colorant nitré; dissoudre le matériau colorant nitré dans un solvant; produire une solution ayant une viscosité prescrite; répandre la solution sur la surface supérieure du substrat; et entraîner le substrat à une vitesse angulaire prescrite pour évaporer le solvant et produire une couche d'enregistrement à colorant nitré fine et uniforme sur la surface supérieure du substrat.
8. Procédé selon la revendication 7, où l'étape de nitration comprend une étape préliminaire de dissoudre le matériau colorant dans un alcool pour produire une boue de colorant.
9. Procédé selon la revendication 8, où l'étape de nitration comprend en outre les étapes de: préparer une solution acide d'acide nitrique et d'acide sulfurique; mélanger ensemble la solution d'acide et la boue de colorant pour former un mélange de boue acide; refroidir le mélange pour empêcher un surchauffage localisé provoqué par la réaction chimique entre la solution d'acide et la boue de colorant; arrêter la réaction chimique en ajoutant de l'eau au mélange précipitant ainsi le colorant nitré; et purifier le colorant nitré précipité.
10. Procédé selon la revendication 7, où le colorant nitré produit dans l'étape de nitration est un polymère, facilitant ainsi la formation d'une couche d'enregistrement fine et uniforme dans l'étape d'entraînement en rotation.
11. Milieu d'enregistrement selon la revendication 1, où la surface précitée du substrat précité est réflective.
12. Procédé selon la revendication 7, et comprenant de plus l'étape de produire un substrat ayant une surface supérieure réflective.
HK515/86A 1980-10-31 1986-07-03 Optical recording medium and method for its formation HK51586A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US20284280A 1980-10-31 1980-10-31

Publications (1)

Publication Number Publication Date
HK51586A true HK51586A (en) 1986-07-11

Family

ID=22751484

Family Applications (1)

Application Number Title Priority Date Filing Date
HK515/86A HK51586A (en) 1980-10-31 1986-07-03 Optical recording medium and method for its formation

Country Status (9)

Country Link
EP (1) EP0051283B2 (fr)
JP (2) JPS57103139A (fr)
KR (1) KR870001114B1 (fr)
AT (1) ATE14166T1 (fr)
AU (1) AU545917B2 (fr)
CA (1) CA1155548A (fr)
DE (1) DE3171253D1 (fr)
HK (1) HK51586A (fr)
MY (1) MY8700038A (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR870002142B1 (ko) * 1982-09-20 1987-12-12 디스커비소젼 어시에이츠 광학 기록 매체 및 그의 제조방법
JPS59185694A (ja) * 1983-04-07 1984-10-22 Tdk Corp 光記録媒体
JPS59218634A (ja) * 1983-05-27 1984-12-08 Ricoh Co Ltd 光情報記録媒体の書き込み読み出し方法
JPS59227049A (ja) * 1983-06-07 1984-12-20 Fuji Photo Film Co Ltd 情報記録媒体
US4809022A (en) * 1983-06-27 1989-02-28 Optical Disc Corporation Direct read after write optical storage medium
EP0153729B1 (fr) * 1984-02-27 1989-05-10 TDK Corporation Moyen d'enregistrement optique
US6348504B1 (en) 1999-03-30 2002-02-19 Richard E. Olson Oxime ethers as IIb/IIa antagonists
JP5352171B2 (ja) * 2007-10-15 2013-11-27 富士フイルム株式会社 発光素子の製造方法および光学素子の製造方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1574687B2 (de) * 1968-02-06 1978-08-10 Robert Bosch Gmbh, 7000 Stuttgart Aufzeichnungsträger für Informationen
JPS5932319B2 (ja) * 1974-03-22 1984-08-08 富士写真フイルム株式会社 記録材料
AU511031B2 (en) * 1976-03-19 1980-07-24 Rca Corp. Ablative optical recording medium
JPS5346019A (en) * 1976-10-08 1978-04-25 Canon Inc Recoading medium
FR2368779A1 (fr) * 1976-10-22 1978-05-19 Thomson Brandt Support thermosensible destine a l'enregistrement d'information et procede d'enregistrement d'information sur un tel support
DE2826122A1 (de) * 1977-06-14 1978-12-21 Fuji Photo Film Co Ltd Aufzeichnungsmaterial
JPS5437940A (en) * 1977-08-31 1979-03-20 Sadaichi Abe Hot water boiler
NL7809159A (nl) * 1977-09-29 1979-04-02 Philips Nv Informatieregistratie element met kleurstof bevattende hulplaag.
JPS5586787A (en) * 1978-12-22 1980-06-30 Nec Corp Laser recording film
US4430401A (en) * 1979-06-13 1984-02-07 Discovision Associates Method for producing a recording disc stamper

Also Published As

Publication number Publication date
JPS57103139A (en) 1982-06-26
JPH03193388A (ja) 1991-08-23
JPH0455873B2 (fr) 1992-09-04
AU7659281A (en) 1982-05-06
CA1155548A (fr) 1983-10-18
EP0051283A1 (fr) 1982-05-12
MY8700038A (en) 1987-12-31
DE3171253D1 (en) 1985-08-08
EP0051283B2 (fr) 1989-05-31
KR830008286A (ko) 1983-11-16
JPH0474196B2 (fr) 1992-11-25
AU545917B2 (en) 1985-08-08
EP0051283B1 (fr) 1985-07-03
ATE14166T1 (de) 1985-07-15
KR870001114B1 (ko) 1987-06-08

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