DE2431252A1 - Verfahren zum herstellen einer matrize - Google Patents

Verfahren zum herstellen einer matrize

Info

Publication number
DE2431252A1
DE2431252A1 DE2431252A DE2431252A DE2431252A1 DE 2431252 A1 DE2431252 A1 DE 2431252A1 DE 2431252 A DE2431252 A DE 2431252A DE 2431252 A DE2431252 A DE 2431252A DE 2431252 A1 DE2431252 A1 DE 2431252A1
Authority
DE
Germany
Prior art keywords
skin
substrate
electrolytic
track
die
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.)
Pending
Application number
DE2431252A
Other languages
German (de)
English (en)
Inventor
Eugene Duda
Michel Marchal
Jean Edgar Picquendar
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.)
Thomson-Brandt SA
Original Assignee
Thomson-Brandt SA
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 Thomson-Brandt SA filed Critical Thomson-Brandt SA
Publication of DE2431252A1 publication Critical patent/DE2431252A1/de
Pending 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
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G11B23/0057—Intermediate mediums, i.e. mediums provided with an information structure not specific to the method of reproducing or duplication such as matrixes for mechanical pressing of an information structure ; record carriers having a relief information structure provided with or included in layers not specific for a single reproducing method; apparatus or processes specially adapted for their manufacture
    • 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
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G11B7/0045—Recording

Landscapes

  • Manufacturing Optical Record Carriers (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
DE2431252A 1973-06-29 1974-06-28 Verfahren zum herstellen einer matrize Pending DE2431252A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7324003A FR2235449A1 (enExample) 1973-06-29 1973-06-29

Publications (1)

Publication Number Publication Date
DE2431252A1 true DE2431252A1 (de) 1975-01-23

Family

ID=9121822

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2431252A Pending DE2431252A1 (de) 1973-06-29 1974-06-28 Verfahren zum herstellen einer matrize

Country Status (6)

Country Link
US (1) US3875024A (enExample)
JP (1) JPS5039101A (enExample)
CA (1) CA1028060A (enExample)
DE (1) DE2431252A1 (enExample)
FR (1) FR2235449A1 (enExample)
IT (1) IT1015451B (enExample)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4305081A (en) * 1976-03-19 1981-12-08 Rca Corporation Multilayer record blank for use in optical recording
JPH0114038B2 (enExample) * 1977-12-19 1989-03-09 Eastman Kodak Co
EP0044122A3 (en) * 1978-03-27 1982-08-04 Discovision Associates Method and apparatus for writing a signal information track on a disc
US4430401A (en) * 1979-06-13 1984-02-07 Discovision Associates Method for producing a recording disc stamper
US4300227A (en) * 1979-10-17 1981-11-10 Rca Corporation Replicable optical recording medium
US4285056A (en) * 1979-10-17 1981-08-18 Rca Corporation Replicable optical recording medium
JPS5814336A (ja) * 1981-07-20 1983-01-27 Toshiba Corp 情報記憶媒体およびその製造方法
US4615969A (en) * 1982-05-28 1986-10-07 Energy Conversion Devices, Inc. Method and apparatus for making a stamping master for video disk replication
US4616237A (en) * 1982-09-27 1986-10-07 Pa Management Consultants, Ltd. Data storage medium
EP0147945A1 (en) * 1983-11-21 1985-07-10 Comtech Research Unit Limited Data storage medium
US5248990A (en) * 1987-04-16 1993-09-28 Canon Kabushiki Kaisha Process for producing optical recording medium for optical data recording and reproduction
US5026510A (en) * 1988-03-17 1991-06-25 Canon Kabushiki Kaisha Mold for cast molding substrate having preformat with information pits and method of using same
US5279775A (en) * 1992-06-10 1994-01-18 Iomega Corporation Acousto-optical intensity control of laser beam during etching of optical servo information of magnetic media
KR20010041990A (ko) * 1998-03-18 2001-05-25 레비치 유진 엠보싱된 다수의 발광 기록층을 가지는 광기록매체의제조방법.
US6595306B2 (en) * 2001-08-09 2003-07-22 Crown Equipment Corporation Supplemental walk along control for walkie/rider pallet trucks

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1513120A (en) * 1920-06-14 1924-10-28 Madsenell Corp Phonograph record and method of producing the same
US1448792A (en) * 1921-08-10 1923-03-20 William H Cole Method of making master phonograph records
US2075646A (en) * 1933-01-28 1937-03-30 Rca Corp Method of making a record mold
US2067502A (en) * 1934-08-16 1937-01-12 Bell Telephone Labor Inc Art of duplicating phonograph records
US3227634A (en) * 1962-10-03 1966-01-04 Philips Corp Method of manufacturing moulds for pressing phonograph records

Also Published As

Publication number Publication date
CA1028060A (en) 1978-03-14
US3875024A (en) 1975-04-01
JPS5039101A (enExample) 1975-04-11
IT1015451B (it) 1977-05-10
FR2235449A1 (enExample) 1975-01-24

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