ZA734786B - Information carrier and method of manufacturing an information carrier - Google Patents

Information carrier and method of manufacturing an information carrier

Info

Publication number
ZA734786B
ZA734786B ZA00734786A ZA734786A ZA734786B ZA 734786 B ZA734786 B ZA 734786B ZA 00734786 A ZA00734786 A ZA 00734786A ZA 734786 A ZA734786 A ZA 734786A ZA 734786 B ZA734786 B ZA 734786B
Authority
ZA
South Africa
Prior art keywords
information carrier
manufacturing
carrier
information
Prior art date
Application number
ZA00734786A
Other languages
English (en)
Inventor
B Jacobs
Wal J Van Der
G Gerritsen
Original Assignee
Philips 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
Application filed by Philips Nv filed Critical Philips Nv
Publication of ZA734786B publication Critical patent/ZA734786B/xx

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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2017/00—Carriers for sound or information
    • B29L2017/001—Carriers of records containing fine grooves or impressions, e.g. disc records for needle playback, cylinder records
    • B29L2017/003—Records or discs
    • B29L2017/005—CD''s, DVD''s

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
ZA00734786A 1972-09-02 1973-07-13 Information carrier and method of manufacturing an information carrier ZA734786B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7212001A NL7212001A (cs) 1972-09-02 1972-09-02

Publications (1)

Publication Number Publication Date
ZA734786B true ZA734786B (en) 1975-02-26

Family

ID=19816851

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA00734786A ZA734786B (en) 1972-09-02 1973-07-13 Information carrier and method of manufacturing an information carrier

Country Status (3)

Country Link
BR (1) BR7306709D0 (cs)
NL (1) NL7212001A (cs)
ZA (1) ZA734786B (cs)

Also Published As

Publication number Publication date
BR7306709D0 (pt) 1974-07-25
NL7212001A (cs) 1974-03-05

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