FR2134107B1 - - Google Patents

Info

Publication number
FR2134107B1
FR2134107B1 FR7113917A FR7113917A FR2134107B1 FR 2134107 B1 FR2134107 B1 FR 2134107B1 FR 7113917 A FR7113917 A FR 7113917A FR 7113917 A FR7113917 A FR 7113917A FR 2134107 B1 FR2134107 B1 FR 2134107B1
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
FR7113917A
Other languages
French (fr)
Other versions
FR2134107A1 (enExample
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.)
Thales SA
Original Assignee
Thomson CSF 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 CSF SA filed Critical Thomson CSF SA
Priority to FR7113917A priority Critical patent/FR2134107B1/fr
Priority to CA140,050A priority patent/CA965281A/en
Publication of FR2134107A1 publication Critical patent/FR2134107A1/fr
Priority to US05/485,714 priority patent/US4025731A/en
Application granted granted Critical
Publication of FR2134107B1 publication Critical patent/FR2134107B1/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
    • G03H1/04—Processes or apparatus for producing holograms
    • G03H1/16—Processes or apparatus for producing holograms using Fourier transform
    • 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
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G11B7/0065—Recording, reproducing or erasing by using optical interference patterns, e.g. holograms

Landscapes

  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • General Physics & Mathematics (AREA)
FR7113917A 1971-04-20 1971-04-20 Expired FR2134107B1 (enExample)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR7113917A FR2134107B1 (enExample) 1971-04-20 1971-04-20
CA140,050A CA965281A (en) 1971-04-20 1972-04-19 Optical record, and associated recording and reading-out devices
US05/485,714 US4025731A (en) 1971-04-20 1974-07-03 Optical record, and associated recording and reading-out devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7113917A FR2134107B1 (enExample) 1971-04-20 1971-04-20

Publications (2)

Publication Number Publication Date
FR2134107A1 FR2134107A1 (enExample) 1972-12-08
FR2134107B1 true FR2134107B1 (enExample) 1975-01-17

Family

ID=9075578

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7113917A Expired FR2134107B1 (enExample) 1971-04-20 1971-04-20

Country Status (2)

Country Link
CA (1) CA965281A (enExample)
FR (1) FR2134107B1 (enExample)

Also Published As

Publication number Publication date
FR2134107A1 (enExample) 1972-12-08
CA965281A (en) 1975-04-01

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Legal Events

Date Code Title Description
ST Notification of lapse