FR2287085A1 - Procede de protection d'un support d'information lisible optiquement par transmission - Google Patents

Procede de protection d'un support d'information lisible optiquement par transmission

Info

Publication number
FR2287085A1
FR2287085A1 FR7433530A FR7433530A FR2287085A1 FR 2287085 A1 FR2287085 A1 FR 2287085A1 FR 7433530 A FR7433530 A FR 7433530A FR 7433530 A FR7433530 A FR 7433530A FR 2287085 A1 FR2287085 A1 FR 2287085A1
Authority
FR
France
Prior art keywords
coating
sensitivity
recorded
signal
transparent coatings
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.)
Granted
Application number
FR7433530A
Other languages
English (en)
Other versions
FR2287085B1 (fr
Inventor
Jean-Claude Dubois
Maryse Gazard
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
Priority to FR7433530A priority Critical patent/FR2287085A1/fr
Publication of FR2287085A1 publication Critical patent/FR2287085A1/fr
Application granted granted Critical
Publication of FR2287085B1 publication Critical patent/FR2287085B1/fr
Granted 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)
  • Optical Record Carriers And Manufacture Thereof (AREA)
FR7433530A 1974-10-04 1974-10-04 Procede de protection d'un support d'information lisible optiquement par transmission Granted FR2287085A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7433530A FR2287085A1 (fr) 1974-10-04 1974-10-04 Procede de protection d'un support d'information lisible optiquement par transmission

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7433530A FR2287085A1 (fr) 1974-10-04 1974-10-04 Procede de protection d'un support d'information lisible optiquement par transmission

Publications (2)

Publication Number Publication Date
FR2287085A1 true FR2287085A1 (fr) 1976-04-30
FR2287085B1 FR2287085B1 (fr) 1978-09-15

Family

ID=9143774

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7433530A Granted FR2287085A1 (fr) 1974-10-04 1974-10-04 Procede de protection d'un support d'information lisible optiquement par transmission

Country Status (1)

Country Link
FR (1) FR2287085A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2536895A1 (fr) * 1982-11-25 1984-06-01 Sony Corp Support d'enregistrement optique

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1012746A (en) * 1962-11-07 1965-12-08 Radiation Res Corp Method of forming a polymeric coating by glow discharge
FR2079414A7 (en) * 1970-02-13 1971-11-12 Siemens Ag Insulating coating applied by gas poly-merisation
US3703407A (en) * 1970-12-15 1972-11-21 Rca Corp Relief phase holograms
FR2169072A1 (en) * 1972-01-24 1973-09-07 Balzers Patent Beteilig Ag Protectively coating lenses or mirrors - by glow discharge in atmos contg organosilicon cpd vapours

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1012746A (en) * 1962-11-07 1965-12-08 Radiation Res Corp Method of forming a polymeric coating by glow discharge
FR2079414A7 (en) * 1970-02-13 1971-11-12 Siemens Ag Insulating coating applied by gas poly-merisation
US3703407A (en) * 1970-12-15 1972-11-21 Rca Corp Relief phase holograms
FR2169072A1 (en) * 1972-01-24 1973-09-07 Balzers Patent Beteilig Ag Protectively coating lenses or mirrors - by glow discharge in atmos contg organosilicon cpd vapours

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2536895A1 (fr) * 1982-11-25 1984-06-01 Sony Corp Support d'enregistrement optique

Also Published As

Publication number Publication date
FR2287085B1 (fr) 1978-09-15

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Legal Events

Date Code Title Description
ST Notification of lapse