FR2726116B1 - Disque optique reinscriptible preformate, et procede de fabrication - Google Patents

Disque optique reinscriptible preformate, et procede de fabrication

Info

Publication number
FR2726116B1
FR2726116B1 FR9412636A FR9412636A FR2726116B1 FR 2726116 B1 FR2726116 B1 FR 2726116B1 FR 9412636 A FR9412636 A FR 9412636A FR 9412636 A FR9412636 A FR 9412636A FR 2726116 B1 FR2726116 B1 FR 2726116B1
Authority
FR
France
Prior art keywords
preformed
manufacturing
optical disc
rewrite
rewrite optical
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
FR9412636A
Other languages
English (en)
Other versions
FR2726116A1 (fr
Inventor
Yague Antonio Munoz
Rene Legros
Laurence Bouet
Lionel Presmanes
Philippe Tailhades
Patrice Langlade
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.)
ATG-Cygnet
Original Assignee
ATG-Cygnet
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 ATG-Cygnet filed Critical ATG-Cygnet
Priority to FR9412636A priority Critical patent/FR2726116B1/fr
Publication of FR2726116A1 publication Critical patent/FR2726116A1/fr
Application granted granted Critical
Publication of FR2726116B1 publication Critical patent/FR2726116B1/fr
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
    • G11B7/24—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
    • G11B7/261—Preparing a master, e.g. exposing photoresist, electroforming
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
    • G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
    • G11B11/10582—Record carriers characterised by the selection of the material or by the structure or form
    • G11B11/10584—Record carriers characterised by the selection of the material or by the structure or form characterised by the form, e.g. comprising mechanical protection elements
    • 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
    • G11B7/007—Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track
    • G11B7/00745—Sectoring or header formats within a track
    • 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
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
    • G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
    • G11B11/1055—Disposition or mounting of transducers relative to record carriers
    • G11B11/10576—Disposition or mounting of transducers relative to record carriers with provision for moving the transducers for maintaining alignment or spacing relative to the carrier
    • G11B11/10578—Servo format, e.g. prepits, 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
    • G11B7/08—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
FR9412636A 1994-10-21 1994-10-21 Disque optique reinscriptible preformate, et procede de fabrication Expired - Fee Related FR2726116B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9412636A FR2726116B1 (fr) 1994-10-21 1994-10-21 Disque optique reinscriptible preformate, et procede de fabrication

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9412636A FR2726116B1 (fr) 1994-10-21 1994-10-21 Disque optique reinscriptible preformate, et procede de fabrication

Publications (2)

Publication Number Publication Date
FR2726116A1 FR2726116A1 (fr) 1996-04-26
FR2726116B1 true FR2726116B1 (fr) 1996-11-29

Family

ID=9468101

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9412636A Expired - Fee Related FR2726116B1 (fr) 1994-10-21 1994-10-21 Disque optique reinscriptible preformate, et procede de fabrication

Country Status (1)

Country Link
FR (1) FR2726116B1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2768548A1 (fr) * 1997-09-16 1999-03-19 Atg Sa Enregistrement optique d'information utilisant des transitions cristallographiques irreversibles, et support optique ainsi obtenu
EP1103047A1 (fr) * 1998-08-05 2001-05-30 ODME International B.V. Substrat pregrave pour disque magnetique, magneto-optique ou optique a transition de phase, fonctionnant par enregistrement en premiere surface dans les lands, son procede de fabrication et disque obtenu

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60208289A (ja) * 1984-03-31 1985-10-19 Dainippon Printing Co Ltd 光記録材料
JPH0648545B2 (ja) * 1986-01-21 1994-06-22 共同印刷株式会社 プリフォーマッティング用ピットのパターンを持った光記録媒体及びその製造方法
JPS62285257A (ja) * 1986-06-04 1987-12-11 Fujitsu Ltd 光磁気デイスク
JPH01162249A (ja) * 1987-12-18 1989-06-26 Kyodo Printing Co Ltd 光記録媒体及びその製造方法並びに光記録媒体を備えたカード
US5264327A (en) * 1988-05-26 1993-11-23 Canon Kabushiki Kaisha Method for preparing information recording medium
JP2511147B2 (ja) * 1989-07-06 1996-06-26 パイオニア株式会社 光ディスク

Also Published As

Publication number Publication date
FR2726116A1 (fr) 1996-04-26

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Legal Events

Date Code Title Description
ST Notification of lapse