FR1601186A - - Google Patents

Info

Publication number
FR1601186A
FR1601186A FR1601186DA FR1601186A FR 1601186 A FR1601186 A FR 1601186A FR 1601186D A FR1601186D A FR 1601186DA FR 1601186 A FR1601186 A FR 1601186A
Authority
FR
France
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
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 filed Critical
Application granted granted Critical
Publication of FR1601186A publication Critical patent/FR1601186A/fr
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
    • 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
FR1601186D 1968-06-06 1968-12-31 Expired FR1601186A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US73500768A 1968-06-06 1968-06-06

Publications (1)

Publication Number Publication Date
FR1601186A true FR1601186A (fr) 1970-08-10

Family

ID=24953958

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1601186D Expired FR1601186A (fr) 1968-06-06 1968-12-31

Country Status (6)

Country Link
JP (1) JPS555177B1 (fr)
CA (1) CA918292A (fr)
DE (1) DE1904920C3 (fr)
FR (1) FR1601186A (fr)
GB (1) GB1214340A (fr)
NL (1) NL6900541A (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2620283A1 (de) * 1975-05-07 1976-11-18 Thomson Brandt Verfahren zur herstellung von mittels absorptionsaenderungen optisch lesbaren informationstraegern
FR2406234A1 (fr) * 1973-10-01 1979-05-11 Mca Disco Vision Matrice de disques et son procede de realisation
US4868808A (en) * 1972-08-25 1989-09-19 Thomson-Csf Optical disk arrangement with closed contours whose entire extent represents information

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6764734B2 (en) * 1998-05-19 2004-07-20 Seagate Technology Llc High modulus and high damping plastic composite disc substrate for improved servo control by injection and co-injection molding

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4868808A (en) * 1972-08-25 1989-09-19 Thomson-Csf Optical disk arrangement with closed contours whose entire extent represents information
US5307332A (en) * 1972-08-25 1994-04-26 Thomson-Csf Optical disk arrangement with diffractive tracks and a photoelectric assembly providing positional control information
FR2406234A1 (fr) * 1973-10-01 1979-05-11 Mca Disco Vision Matrice de disques et son procede de realisation
FR2406235A1 (fr) * 1973-10-01 1979-05-11 Mca Disco Vision Matrice de disques et son procede de realisation
FR2406233A1 (fr) * 1973-10-01 1979-05-11 Mca Disco Vision Matrice de disques et son procede de realisation
DE2620283A1 (de) * 1975-05-07 1976-11-18 Thomson Brandt Verfahren zur herstellung von mittels absorptionsaenderungen optisch lesbaren informationstraegern

Also Published As

Publication number Publication date
GB1214340A (en) 1970-12-02
DE1904920A1 (de) 1971-02-18
DE1904920B2 (de) 1974-10-24
JPS555177B1 (fr) 1980-02-04
CA918292A (en) 1973-01-02
DE1904920C3 (de) 1975-06-12
NL6900541A (fr) 1969-12-09

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Legal Events

Date Code Title Description
TP Transmission of property
CD Change of name or company name
TP Transmission of property