FR2702076B1 - Method for manufacturing a preformatted substrate, optical disc and master disc obtained from the preformatted substrate as well as pressing die obtained from the master disc and optical disc obtained from this pressing die. - Google Patents

Method for manufacturing a preformatted substrate, optical disc and master disc obtained from the preformatted substrate as well as pressing die obtained from the master disc and optical disc obtained from this pressing die.

Info

Publication number
FR2702076B1
FR2702076B1 FR9302005A FR9302005A FR2702076B1 FR 2702076 B1 FR2702076 B1 FR 2702076B1 FR 9302005 A FR9302005 A FR 9302005A FR 9302005 A FR9302005 A FR 9302005A FR 2702076 B1 FR2702076 B1 FR 2702076B1
Authority
FR
France
Prior art keywords
pressing die
disc
optical disc
master
preformatted substrate
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
FR9302005A
Other languages
French (fr)
Other versions
FR2702076A1 (en
Inventor
Jean-Francois Dufresne
Jean Ledieu
Denis Oudard
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.)
Digipress
Original Assignee
Digipress
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 Digipress filed Critical Digipress
Priority to FR9302005A priority Critical patent/FR2702076B1/en
Publication of FR2702076A1 publication Critical patent/FR2702076A1/en
Application granted granted Critical
Publication of FR2702076B1 publication Critical patent/FR2702076B1/en
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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacturing Optical Record Carriers (AREA)
FR9302005A 1993-02-22 1993-02-22 Method for manufacturing a preformatted substrate, optical disc and master disc obtained from the preformatted substrate as well as pressing die obtained from the master disc and optical disc obtained from this pressing die. Expired - Fee Related FR2702076B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9302005A FR2702076B1 (en) 1993-02-22 1993-02-22 Method for manufacturing a preformatted substrate, optical disc and master disc obtained from the preformatted substrate as well as pressing die obtained from the master disc and optical disc obtained from this pressing die.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9302005A FR2702076B1 (en) 1993-02-22 1993-02-22 Method for manufacturing a preformatted substrate, optical disc and master disc obtained from the preformatted substrate as well as pressing die obtained from the master disc and optical disc obtained from this pressing die.

Publications (2)

Publication Number Publication Date
FR2702076A1 FR2702076A1 (en) 1994-09-02
FR2702076B1 true FR2702076B1 (en) 1995-04-21

Family

ID=9444302

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9302005A Expired - Fee Related FR2702076B1 (en) 1993-02-22 1993-02-22 Method for manufacturing a preformatted substrate, optical disc and master disc obtained from the preformatted substrate as well as pressing die obtained from the master disc and optical disc obtained from this pressing die.

Country Status (1)

Country Link
FR (1) FR2702076B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109696266A (en) * 2018-12-28 2019-04-30 江苏五星波纹管有限公司 A kind of induced with laser microgroove surface nanosizing detection method applied to compensator

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4057831A (en) * 1972-09-05 1977-11-08 U.S. Philips Corporation Video record disc manufactured by a process involving chemical or sputter etching
JPS59114031A (en) * 1982-12-22 1984-06-30 Hitachi Ltd Manufacture of stamper for optical disc
DE3583754D1 (en) * 1984-03-16 1991-09-19 Sharp Kk METHOD FOR PRODUCING AN OPTICAL STORAGE ELEMENT.
JPH0648546B2 (en) * 1984-07-14 1994-06-22 日本ビクター株式会社 Method of manufacturing information record carrier
DE69127058T2 (en) * 1990-11-28 1998-03-26 Sharp Kk Manufacturing process of a die

Also Published As

Publication number Publication date
FR2702076A1 (en) 1994-09-02

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Legal Events

Date Code Title Description
ST Notification of lapse