CA1031198A - Data carrier optically readable by transmission/via surface relief - Google Patents

Data carrier optically readable by transmission/via surface relief

Info

Publication number
CA1031198A
CA1031198A CA229,836A CA229836A CA1031198A CA 1031198 A CA1031198 A CA 1031198A CA 229836 A CA229836 A CA 229836A CA 1031198 A CA1031198 A CA 1031198A
Authority
CA
Canada
Prior art keywords
transmission
data carrier
surface relief
optically readable
via surface
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
CA229,836A
Other languages
English (en)
French (fr)
Inventor
Claude Bricot
Bernard Carre
Jean C. Dubois
Francois Le Carvennec
Jean C. Lehureau
Claude Puech
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
Application granted granted Critical
Publication of CA1031198A publication Critical patent/CA1031198A/en
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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1089—Methods of surface bonding and/or assembly therefor of discrete laminae to single face of additional lamina
    • Y10T156/1092—All laminae planar and face to face
    • Y10T156/1093—All laminae planar and face to face with covering of discrete laminae with additional lamina

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacturing Optical Record Carriers (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
CA229,836A 1974-06-21 1975-06-20 Data carrier optically readable by transmission/via surface relief Expired CA1031198A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7421662A FR2275841A1 (fr) 1974-06-21 1974-06-21 Support d'information lisible optiquement par transmission et procede de fabrication dudit support

Publications (1)

Publication Number Publication Date
CA1031198A true CA1031198A (en) 1978-05-16

Family

ID=9140383

Family Applications (1)

Application Number Title Priority Date Filing Date
CA229,836A Expired CA1031198A (en) 1974-06-21 1975-06-20 Data carrier optically readable by transmission/via surface relief

Country Status (7)

Country Link
US (1) US4038524A (ja)
JP (1) JPS5855568B2 (ja)
CA (1) CA1031198A (ja)
DE (1) DE2527085A1 (ja)
FR (1) FR2275841A1 (ja)
GB (1) GB1508861A (ja)
IT (1) IT1039161B (ja)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4410968A (en) * 1977-03-24 1983-10-18 Thomas Lee Siwecki Method and apparatus for recording on a disk supported deformable metallic film
US4142098A (en) * 1977-07-05 1979-02-27 Zenith Radio Corporation Optical readout for reflective video discs
US4300143A (en) * 1977-08-29 1981-11-10 Rca Corporation Thin protective overcoat layer for optical video disc
NL7803517A (nl) * 1978-04-03 1979-10-05 Philips Nv Registratiedrager met een optisch uitleesbare fase- struktuur en inrichting voor het uitlezen.
US4310919A (en) * 1979-01-15 1982-01-12 Discovision Associates Optical video disc structure
US4264911A (en) * 1979-08-20 1981-04-28 Mca Discovision, Inc. Optical recording disc and related method of manufacture
US4327283A (en) * 1979-09-24 1982-04-27 Rca Corporation Workpiece with machine-readable marking recessed therein and method of making same
JPS5848190B2 (ja) * 1980-05-23 1983-10-27 株式会社スワロ−スキ− 内插板を有する発泡性樹脂を芯材としたスキ−板及びその製造方法
JPS5796669A (en) * 1980-12-08 1982-06-16 Hasegawa Kagaku Kogyo Kk Injection ski and its manufacture
US4387381A (en) * 1981-06-12 1983-06-07 Rca Corporation Optical recording medium and information record with tracking aid
JPS586536A (ja) * 1981-07-01 1983-01-14 Pioneer Electronic Corp 光学式デイスク
JPS5843267A (ja) * 1981-09-08 1983-03-12 Matsushita Electric Ind Co Ltd 円盤の塗装方法
EP0105374B1 (en) * 1982-02-05 1989-04-19 Matsushita Electric Industrial Co., Ltd. Optical recording/reproduction disc
JPS61203078U (ja) * 1985-06-06 1986-12-20
DE3628701A1 (de) * 1986-08-23 1988-02-25 Philips & Du Pont Optical Optisch auslesbarer plattenfoermiger informationstraeger
JPS63294874A (ja) * 1988-01-29 1988-12-01 株式会社スワロースキー インジェクションスキーの製造方法
DE4229249A1 (de) * 1992-09-02 1994-05-05 Polygram Record Service Gmbh Optisch auslesbarer Informationsträger
WO1995017747A1 (fr) * 1993-12-23 1995-06-29 Thomson-Csf Procede et systeme optiques d'inscription/lecture d'information sur un support d'enregistrement
FR2723243B1 (fr) * 1994-07-26 1996-09-06 Thomson Csf Dispositif d'enregistrement et/ou de lecture de tetes magnetiques et son procede de realisation
FR2731808B1 (fr) * 1995-03-14 1997-04-11 Thomson Csf Systeme de reglage de focalisation optique
FR2739965B1 (fr) * 1995-10-17 1997-11-07 Thomson Csf Dispositif emetteur-recepteur de lumiere et systeme de lecture optique
FR2742911B1 (fr) * 1995-12-21 1998-02-06 Thomson Csf Support d'enregistrement/lecture optique d'informations et procede d'enregistrement
FR2786345B1 (fr) 1998-11-24 2001-02-09 Thomson Csf Dispositif de cryptage quantique
FR2787232B1 (fr) 1998-12-15 2001-02-23 Thomson Csf Disque d'enregistrement optique anti-piratage et procede de lecture d'un tel disque
FR2805071B1 (fr) 2000-02-11 2002-05-03 Moulage Plastique De L Ouest Disque optique protege contre la copie et procede de protection pour un tel disque
US7149173B2 (en) * 2000-10-17 2006-12-12 Thales Medium for recording optically readable data, method for making same and optical system reproducing said data
US6842409B2 (en) * 2001-02-21 2005-01-11 Scratch-Less Disc Industries, Llc Optical disc and method of protecting same
US6680898B2 (en) * 2001-02-21 2004-01-20 Todd J. Kuchman Optical disc and method of protecting same
FR2824905B1 (fr) * 2001-05-15 2003-08-29 Thomson Csf Gyrometre a fibre optique

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3313052A (en) * 1965-04-29 1967-04-11 Polaroid Corp Laminations
US3536894A (en) * 1965-07-23 1970-10-27 Jerry E Travioli Electronic credit card acceptor
US3586593A (en) * 1965-10-22 1971-06-22 Ernest A Dahl Jr Magnetically actuatable business machine card
US3430966A (en) * 1967-04-03 1969-03-04 Gauss Electrophysics Inc Transparent recording disc
US3829662A (en) * 1969-04-17 1974-08-13 Canon Kk Recording medium having concealed information as input for electronic computer
US3846843A (en) * 1971-07-19 1974-11-05 Minnesota Mining & Mfg Composite film
US3786238A (en) * 1972-09-05 1974-01-15 Addressograph Multigraph Optical reader
FR2266932B1 (ja) * 1973-03-02 1977-09-02 Thomson Brandt

Also Published As

Publication number Publication date
JPS5116821A (ja) 1976-02-10
GB1508861A (en) 1978-04-26
FR2275841A1 (fr) 1976-01-16
JPS5855568B2 (ja) 1983-12-10
FR2275841B1 (ja) 1979-05-04
IT1039161B (it) 1979-12-10
US4038524A (en) 1977-07-26
DE2527085A1 (de) 1976-01-08

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Legal Events

Date Code Title Description
MKEX Expiry

Effective date: 19950516