CA965281A - Optical record, and associated recording and reading-out devices - Google Patents

Optical record, and associated recording and reading-out devices

Info

Publication number
CA965281A
CA965281A CA140,050A CA140050A CA965281A CA 965281 A CA965281 A CA 965281A CA 140050 A CA140050 A CA 140050A CA 965281 A CA965281 A CA 965281A
Authority
CA
Canada
Prior art keywords
reading
optical record
out devices
associated recording
recording
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
CA140,050A
Other languages
English (en)
Other versions
CA140050S (en
Inventor
Michel Rembault
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
Application granted granted Critical
Publication of CA965281A publication Critical patent/CA965281A/en
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)
CA140,050A 1971-04-20 1972-04-19 Optical record, and associated recording and reading-out devices Expired CA965281A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
CA965281A true CA965281A (en) 1975-04-01

Family

ID=9075578

Family Applications (1)

Application Number Title Priority Date Filing Date
CA140,050A Expired CA965281A (en) 1971-04-20 1972-04-19 Optical record, and associated recording and reading-out devices

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
FR2134107B1 (enExample) 1975-01-17

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