CA2065653A1 - Optical recording medium - Google Patents

Optical recording medium

Info

Publication number
CA2065653A1
CA2065653A1 CA002065653A CA2065653A CA2065653A1 CA 2065653 A1 CA2065653 A1 CA 2065653A1 CA 002065653 A CA002065653 A CA 002065653A CA 2065653 A CA2065653 A CA 2065653A CA 2065653 A1 CA2065653 A1 CA 2065653A1
Authority
CA
Canada
Prior art keywords
groove
recording layer
recording
layer
dye
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.)
Abandoned
Application number
CA002065653A
Other languages
English (en)
French (fr)
Inventor
Tadashi Koike
Tadahiko Mizukuki
Tomoyoshi Sasakawa
Yuko Suzuki
Kouichi Shiina
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.)
Mitsui Toatsu Chemicals Inc
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2065653A1 publication Critical patent/CA2065653A1/en
Abandoned 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
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/0938—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following servo format, e.g. guide tracks, pilot signals
    • 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
    • G11B7/24018—Laminated discs
    • G11B7/24027—Layers; Shape, structure or physical properties thereof
    • 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
    • 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
    • G11B7/2407—Tracks or pits; Shape, structure or physical properties thereof
    • G11B7/24073—Tracks
    • G11B7/24079—Width or depth
    • 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
    • G11B7/248—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 porphines; azaporphines, e.g. phthalocyanines

Landscapes

  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)
CA002065653A 1991-04-16 1992-04-09 Optical recording medium Abandoned CA2065653A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP8378491 1991-04-16
JP83784/1991 1991-04-16

Publications (1)

Publication Number Publication Date
CA2065653A1 true CA2065653A1 (en) 1992-10-17

Family

ID=13812263

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002065653A Abandoned CA2065653A1 (en) 1991-04-16 1992-04-09 Optical recording medium

Country Status (7)

Country Link
US (1) US5369321A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
EP (1) EP0509423B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
KR (1) KR950001877B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CA (1) CA2065653A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE69220609T2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
SG (1) SG52484A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
TW (1) TW245798B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08306069A (ja) * 1995-05-11 1996-11-22 Seiko Epson Corp 光ディスクおよび光ディスクの製造方法
US5959960A (en) * 1996-09-27 1999-09-28 Eastman Kodak Company Method of providing a range of conformalities for optical recording layers
GB9903550D0 (en) * 1999-02-16 1999-04-07 Plasmon Ltd Forming optical recording layers
JP2001344812A (ja) * 2000-06-02 2001-12-14 Fuji Photo Film Co Ltd 光情報記録媒体
MXPA04006947A (es) * 2002-01-18 2004-12-06 Koninkl Philips Electronics Nv Medio optico de almacenamiento de datos y uso de ese medio.
JP2005190616A (ja) * 2003-12-26 2005-07-14 Taiyo Yuden Co Ltd 光情報記録媒体
DE602004004524T2 (de) 2004-07-29 2007-11-08 Clariant Finance (Bvi) Ltd., Road Town Azoliganden auf der Basis von Aminoantipyrine und ihre Metallkomplexe zur Verwendung als optische Aufzeichnungsmedien
JP2008010129A (ja) * 2006-06-30 2008-01-17 Toshiba Corp 情報記録媒体、及びディスク装置
JP2008010107A (ja) * 2006-06-30 2008-01-17 Toshiba Corp 情報記録媒体、及びディスク装置
JP5408851B2 (ja) * 2007-07-31 2014-02-05 太陽誘電株式会社 光情報記録媒体

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4359750A (en) * 1981-04-30 1982-11-16 Eastman Kodak Company Optical disc structure
JPH0823941B2 (ja) * 1988-11-08 1996-03-06 パイオニア株式会社 光学式情報記録担体及びその製造方法
DE69033550T2 (de) * 1989-03-03 2001-01-18 Tdk Corp., Tokio/Tokyo Medium für optische Datenspeicherung
MY105953A (en) * 1989-07-24 1995-02-28 Taiyo Yuden Kk Optical information recording medium and recording method.
US5274623A (en) * 1990-07-19 1993-12-28 Fuji Photo Film Co., Ltd. Information recording medium having high modulation degree
US5213859A (en) * 1990-12-21 1993-05-25 Tdk Corporation Optical recording disk

Also Published As

Publication number Publication date
SG52484A1 (en) 1998-09-28
EP0509423A1 (en) 1992-10-21
KR950001877B1 (ko) 1995-03-04
US5369321A (en) 1994-11-29
DE69220609D1 (de) 1997-08-07
TW245798B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1995-04-21
EP0509423B1 (en) 1997-07-02
DE69220609T2 (de) 1998-01-08
KR920020429A (ko) 1992-11-21

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Legal Events

Date Code Title Description
EEER Examination request
FZDE Dead