JPS56156941A - Optical recording medium - Google Patents

Optical recording medium

Info

Publication number
JPS56156941A
JPS56156941A JP5971380A JP5971380A JPS56156941A JP S56156941 A JPS56156941 A JP S56156941A JP 5971380 A JP5971380 A JP 5971380A JP 5971380 A JP5971380 A JP 5971380A JP S56156941 A JPS56156941 A JP S56156941A
Authority
JP
Grant status
Application
Patent type
Prior art keywords
layer
substrate
used
transmission factor
recording
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.)
Pending
Application number
JP5971380A
Other versions
JPH0221060B2 (en )
Inventor
Shuzo Fukunishi
Manabu Yamamoto
Susumu Yonezawa
Original Assignee
Nippon Telegr & Teleph Corp <Ntt>
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

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/24Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252Record 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
    • G11B7/258Record 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
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/24Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242Record 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
    • G11B7/243Record 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
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/24Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242Record 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
    • G11B7/244Record 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
    • G11B7/246Record 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
    • G11B7/247Record 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 methine or polymethine dyes
    • G11B7/2472Record 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 methine or polymethine dyes cyanine
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/24Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242Record 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
    • G11B7/243Record 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
    • G11B2007/24302Metals or metalloids
    • G11B2007/24314Metals or metalloids group 15 elements (e.g. Sb, Bi)
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/24Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242Record 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
    • G11B7/243Record 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
    • G11B2007/24302Metals or metalloids
    • G11B2007/24316Metals or metalloids group 16 elements (i.e. chalcogenides, Se, Te)
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/24Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252Record 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
    • G11B7/253Record 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
    • G11B7/2533Record 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
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/24Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252Record 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
    • G11B7/258Record 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
    • G11B7/2585Record 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

Abstract

PURPOSE:To prevent increment of noise, by forming a reflection preventing structure against the light direction incided from the side of a substrate by laminating a recording layer, a transparent layer and a reflecting layer in order on the substrate and then recording a signal by making use of the variation of refractive index or transmission factor. CONSTITUTION:For an optical recording medium such as a video disk or the like, a recording layer 12, a transparent layer 13 and a reflecting layer 14 are formed successively on a substrate 11 made of transparent plastic or the like to obtain a reflection preventing structure. The layers 14 of two units of the said structure are adhered to each other via an adhesive 18 to form a sandwich structure. Thus the laser beam 17 is irradiated from the side of each substrate 11, and the signal is recorded by making use of the variation of refractive index or transmission factor of the layer 12. For instance, the polymethacrylate is used for the substrate 11, and an amorphous thin film of AsTe and cyanine coloring matter or the like whose transmission factor varies by the heat effect of laser, SiO2 or the like is used for the layer 12, and Te, Al or the like, are used for the layer 14 respectively. Thus a record/ reproduction is possible for the semiconductor laser of several mW.
JP5971380A 1980-05-06 1980-05-06 Expired - Lifetime JPH0221060B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5971380A JPH0221060B2 (en) 1980-05-06 1980-05-06

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5971380A JPH0221060B2 (en) 1980-05-06 1980-05-06

Publications (2)

Publication Number Publication Date
JPS56156941A true true JPS56156941A (en) 1981-12-03
JPH0221060B2 JPH0221060B2 (en) 1990-05-11

Family

ID=13121117

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5971380A Expired - Lifetime JPH0221060B2 (en) 1980-05-06 1980-05-06

Country Status (1)

Country Link
JP (1) JPH0221060B2 (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58501884A (en) * 1981-11-09 1983-11-04
JPS58501883A (en) * 1981-11-09 1983-11-04
JPS59203252A (en) * 1983-05-06 1984-11-17 Ricoh Co Ltd Optical information recording medium
JPS6042095A (en) * 1983-08-19 1985-03-06 Hitachi Ltd Information recording member
JPS6057553A (en) * 1983-06-01 1985-04-03 Burroughs Corp Optical memory disc and manufacture thereof
JPS61500574A (en) * 1983-12-02 1986-03-27
JPS61131249A (en) * 1984-11-30 1986-06-18 Hitachi Ltd Double-faced optical information recording medium
JPH0264933A (en) * 1989-07-04 1990-03-05 Ricoh Co Ltd Optical information recording method
JPH08224963A (en) * 1995-12-15 1996-09-03 Hitachi Ltd Information recording member
US7038978B2 (en) * 2000-11-21 2006-05-02 Matsushita Electric Industrial Co., Ltd. Optical information recording and reproducing apparatus for recording information bits into an optical disk in a three dimensional arrangement

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53120506A (en) * 1977-03-28 1978-10-21 Rca Corp Information recorder
JPS5538665A (en) * 1978-09-08 1980-03-18 Matsushita Electric Ind Co Ltd Optical recording member

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53120506A (en) * 1977-03-28 1978-10-21 Rca Corp Information recorder
JPS5538665A (en) * 1978-09-08 1980-03-18 Matsushita Electric Ind Co Ltd Optical recording member

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58501884A (en) * 1981-11-09 1983-11-04
JPS58501883A (en) * 1981-11-09 1983-11-04
JPS59203252A (en) * 1983-05-06 1984-11-17 Ricoh Co Ltd Optical information recording medium
JPS6057553A (en) * 1983-06-01 1985-04-03 Burroughs Corp Optical memory disc and manufacture thereof
JPS6042095A (en) * 1983-08-19 1985-03-06 Hitachi Ltd Information recording member
JPH0461791B2 (en) * 1983-08-19 1992-10-02 Hitachi Ltd
JPS61500574A (en) * 1983-12-02 1986-03-27
JPS61131249A (en) * 1984-11-30 1986-06-18 Hitachi Ltd Double-faced optical information recording medium
JPH0264933A (en) * 1989-07-04 1990-03-05 Ricoh Co Ltd Optical information recording method
JPH0584569B2 (en) * 1989-07-04 1993-12-02 Ricoh Kk
JPH08224963A (en) * 1995-12-15 1996-09-03 Hitachi Ltd Information recording member
US7038978B2 (en) * 2000-11-21 2006-05-02 Matsushita Electric Industrial Co., Ltd. Optical information recording and reproducing apparatus for recording information bits into an optical disk in a three dimensional arrangement

Also Published As

Publication number Publication date Type
JPH0221060B2 (en) 1990-05-11 grant

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