DE69220609T2 - Optischer Aufzeichnungsträger - Google Patents

Optischer Aufzeichnungsträger

Info

Publication number
DE69220609T2
DE69220609T2 DE69220609T DE69220609T DE69220609T2 DE 69220609 T2 DE69220609 T2 DE 69220609T2 DE 69220609 T DE69220609 T DE 69220609T DE 69220609 T DE69220609 T DE 69220609T DE 69220609 T2 DE69220609 T2 DE 69220609T2
Authority
DE
Germany
Prior art keywords
record carrier
optical record
optical
carrier
record
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.)
Expired - Fee Related
Application number
DE69220609T
Other languages
English (en)
Other versions
DE69220609D1 (de
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 Chemicals Inc
Original Assignee
Mitsui Toatsu Chemicals Inc
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 Mitsui Toatsu Chemicals Inc filed Critical Mitsui Toatsu Chemicals Inc
Application granted granted Critical
Publication of DE69220609D1 publication Critical patent/DE69220609D1/de
Publication of DE69220609T2 publication Critical patent/DE69220609T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
DE69220609T 1991-04-16 1992-04-12 Optischer Aufzeichnungsträger Expired - Fee Related DE69220609T2 (de)

Applications Claiming Priority (1)

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

Publications (2)

Publication Number Publication Date
DE69220609D1 DE69220609D1 (de) 1997-08-07
DE69220609T2 true DE69220609T2 (de) 1998-01-08

Family

ID=13812263

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69220609T Expired - Fee Related DE69220609T2 (de) 1991-04-16 1992-04-12 Optischer Aufzeichnungsträger

Country Status (7)

Country Link
US (1) US5369321A (de)
EP (1) EP0509423B1 (de)
KR (1) KR950001877B1 (de)
CA (1) CA2065653A1 (de)
DE (1) DE69220609T2 (de)
SG (1) SG52484A1 (de)
TW (1) TW245798B (de)

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
EP1472685A1 (de) * 2002-01-18 2004-11-03 Koninklijke Philips Electronics N.V. Optisches speichermedium und dessen verwendung
JP2005190616A (ja) * 2003-12-26 2005-07-14 Taiyo Yuden Co Ltd 光情報記録媒体
ATE352587T1 (de) 2004-07-29 2007-02-15 Clariant Finance Bvi Ltd 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 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
US5369321A (en) 1994-11-29
TW245798B (de) 1995-04-21
EP0509423A1 (de) 1992-10-21
SG52484A1 (en) 1998-09-28
DE69220609D1 (de) 1997-08-07
KR950001877B1 (ko) 1995-03-04
EP0509423B1 (de) 1997-07-02
KR920020429A (ko) 1992-11-21
CA2065653A1 (en) 1992-10-17

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: MITSUI CHEMICALS, INC., TOKIO/TOKYO, JP

8339 Ceased/non-payment of the annual fee