ES418367A1 - Metodo de fabricar un portador de informacion. - Google Patents

Metodo de fabricar un portador de informacion.

Info

Publication number
ES418367A1
ES418367A1 ES418367A ES418367A ES418367A1 ES 418367 A1 ES418367 A1 ES 418367A1 ES 418367 A ES418367 A ES 418367A ES 418367 A ES418367 A ES 418367A ES 418367 A1 ES418367 A1 ES 418367A1
Authority
ES
Spain
Prior art keywords
information
information carrier
unexposed
carrier
making disc
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
Application number
ES418367A
Other languages
English (en)
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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
Priority claimed from NL7212001A external-priority patent/NL7212001A/xx
Priority claimed from NL7212045A external-priority patent/NL7212045A/xx
Application filed by Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of ES418367A1 publication Critical patent/ES418367A1/es
Expired 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
    • 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
ES418367A 1972-09-02 1973-08-31 Metodo de fabricar un portador de informacion. Expired ES418367A1 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL7212001A NL7212001A (es) 1972-09-02 1972-09-02
NL7212045A NL7212045A (es) 1972-09-05 1972-09-05

Publications (1)

Publication Number Publication Date
ES418367A1 true ES418367A1 (es) 1976-04-16

Family

ID=26644798

Family Applications (2)

Application Number Title Priority Date Filing Date
ES418367A Expired ES418367A1 (es) 1972-09-02 1973-08-31 Metodo de fabricar un portador de informacion.
ES439625A Expired ES439625A1 (es) 1972-09-02 1975-07-22 Perfeccionamientos introducidos en un portador de informa- cion.

Family Applications After (1)

Application Number Title Priority Date Filing Date
ES439625A Expired ES439625A1 (es) 1972-09-02 1975-07-22 Perfeccionamientos introducidos en un portador de informa- cion.

Country Status (10)

Country Link
JP (1) JPS5652361B2 (es)
AR (1) AR200876A1 (es)
AT (1) AT347147B (es)
BE (1) BE804332A (es)
CA (1) CA998173A (es)
CH (1) CH570669A5 (es)
ES (2) ES418367A1 (es)
FR (1) FR2199604B1 (es)
GB (1) GB1447066A (es)
IT (1) IT990424B (es)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2603888B2 (de) * 1975-02-24 1977-12-15 MCA Disco-Vision, Znc, Universal City, Calif. (V-StA.) Verfahren zum herstellen einer nachbildungsmatrize fuer informationstraeger und matrize zur bildung von videoplattenreproduktionen
JPS6034171B2 (ja) * 1977-04-05 1985-08-07 ソニー株式会社 光学記録方式によるビデオデイスク原盤
JPS6166242A (ja) * 1984-09-06 1986-04-05 Matsushita Electric Ind Co Ltd 情報記録原盤
DE3737455A1 (de) * 1986-11-06 1988-05-19 Westinghouse Electric Corp Einrichtung und verfahren zum erzeugen von farbmustern
EP0286326B1 (en) * 1987-04-08 1994-06-15 Nippon Telegraph and Telephone Corporation Method and apparatus for fabricating an optical disc master and an optical disc
JPH01235044A (ja) * 1988-03-14 1989-09-20 Nippon Telegr & Teleph Corp <Ntt> 光ディスク基板およびその製造方法
JP2735569B2 (ja) * 1988-06-29 1998-04-02 日本電気ホームエレクトロニクス株式会社 光ディスク原盤の製造方法
JP2000113452A (ja) * 1998-10-07 2000-04-21 Sony Corp 光ディスクの製造装置、光ディスクの製造方法、光ディスク及び光ディスクの再生方法

Also Published As

Publication number Publication date
GB1447066A (en) 1976-08-25
CH570669A5 (es) 1975-12-15
FR2199604A1 (es) 1974-04-12
DE2342285A1 (de) 1974-03-14
ES439625A1 (es) 1977-03-01
AT347147B (de) 1978-12-11
BE804332A (fr) 1974-02-28
AR200876A1 (es) 1974-12-27
JPS4993002A (es) 1974-09-04
DE2342285B2 (de) 1977-02-03
JPS5652361B2 (es) 1981-12-11
ATA755773A (de) 1978-04-15
FR2199604B1 (es) 1979-08-03
IT990424B (it) 1975-06-20
CA998173A (en) 1976-10-05
AU5974673A (en) 1975-03-06

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