JPS53148411A - Production of press master for video discs - Google Patents

Production of press master for video discs

Info

Publication number
JPS53148411A
JPS53148411A JP6302877A JP6302877A JPS53148411A JP S53148411 A JPS53148411 A JP S53148411A JP 6302877 A JP6302877 A JP 6302877A JP 6302877 A JP6302877 A JP 6302877A JP S53148411 A JPS53148411 A JP S53148411A
Authority
JP
Japan
Prior art keywords
production
video discs
press master
make
master
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
JP6302877A
Other languages
Japanese (ja)
Inventor
Masamichi Sato
Yuzo Mizobuchi
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.)
Fujifilm Holdings Corp
Original Assignee
Fuji Photo Film Co Ltd
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 Fuji Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
Priority to JP6302877A priority Critical patent/JPS53148411A/en
Publication of JPS53148411A publication Critical patent/JPS53148411A/en
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
    • G11B7/26—Apparatus or processes specially adapted for the manufacture of record carriers

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Manufacturing Optical Record Carriers (AREA)

Abstract

PURPOSE:To make possible monitoring like Phillips/MCA system and yet make the process simpler than siad system and improve the shape of the bils of the resultant video disc by providing a metal layer on a specific thin layer.
JP6302877A 1977-05-30 1977-05-30 Production of press master for video discs Pending JPS53148411A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6302877A JPS53148411A (en) 1977-05-30 1977-05-30 Production of press master for video discs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6302877A JPS53148411A (en) 1977-05-30 1977-05-30 Production of press master for video discs

Publications (1)

Publication Number Publication Date
JPS53148411A true JPS53148411A (en) 1978-12-25

Family

ID=13217455

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6302877A Pending JPS53148411A (en) 1977-05-30 1977-05-30 Production of press master for video discs

Country Status (1)

Country Link
JP (1) JPS53148411A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993025341A1 (en) * 1992-06-10 1993-12-23 Minnesota Mining And Manufacturing Company Acousto-optical intensity control of laser beam
JP2012511222A (en) * 2008-12-04 2012-05-17 ダグ カーソン アンド アソシエーツ，インク． Variable track width recording compensation

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993025341A1 (en) * 1992-06-10 1993-12-23 Minnesota Mining And Manufacturing Company Acousto-optical intensity control of laser beam
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
JP2012511222A (en) * 2008-12-04 2012-05-17 ダグ カーソン アンド アソシエーツ，インク． Variable track width recording compensation

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