CA991299A - Erasure of recorded images from optic relay - Google Patents

Erasure of recorded images from optic relay

Info

Publication number
CA991299A
CA991299A CA160,946A CA160946A CA991299A CA 991299 A CA991299 A CA 991299A CA 160946 A CA160946 A CA 160946A CA 991299 A CA991299 A CA 991299A
Authority
CA
Canada
Prior art keywords
erasure
recorded images
optic relay
optic
relay
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
CA160,946A
Other versions
CA160946S (en
Inventor
Michel Grenot
Jean Pergrale
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of CA991299A publication Critical patent/CA991299A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/03—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on ceramics or electro-optical crystals, e.g. exhibiting Pockels effect or Kerr effect
    • G02F1/05—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on ceramics or electro-optical crystals, e.g. exhibiting Pockels effect or Kerr effect with ferro-electric properties
    • G02F1/0533—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on ceramics or electro-optical crystals, e.g. exhibiting Pockels effect or Kerr effect with ferro-electric properties structurally associated with a photo-conductive layer

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
  • Facsimile Scanning Arrangements (AREA)
  • Photo Coupler, Interrupter, Optical-To-Optical Conversion Devices (AREA)
  • Switches Operated By Changes In Physical Conditions (AREA)
CA160,946A 1972-01-14 1973-01-10 Erasure of recorded images from optic relay Expired CA991299A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7201326A FR2167426B2 (en) 1972-01-14 1972-01-14

Publications (1)

Publication Number Publication Date
CA991299A true CA991299A (en) 1976-06-15

Family

ID=9091963

Family Applications (1)

Application Number Title Priority Date Filing Date
CA160,946A Expired CA991299A (en) 1972-01-14 1973-01-10 Erasure of recorded images from optic relay

Country Status (6)

Country Link
US (1) US3855579A (en)
JP (1) JPS4881072A (en)
CA (1) CA991299A (en)
DE (1) DE2301233C3 (en)
FR (1) FR2167426B2 (en)
GB (1) GB1414894A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4731754A (en) * 1985-09-12 1988-03-15 The United States Of America As Represented By The Secretary Of The Navy Erasable optical memory material from a ferroelectric polymer
US4941735A (en) * 1989-03-02 1990-07-17 University Of Colorado Foundation, Inc. Optically addressable spatial light modulator
US5179533A (en) * 1989-07-31 1993-01-12 Radiant Technologies Read/write optical memory

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3740734A (en) * 1972-03-15 1973-06-19 Bell Telephone Labor Inc Coarse grain polycrystalline ferroelectric ceramic optical memory system

Also Published As

Publication number Publication date
FR2167426B2 (en) 1975-10-24
JPS4881072A (en) 1973-10-30
DE2301233B2 (en) 1978-02-16
US3855579A (en) 1974-12-17
DE2301233A1 (en) 1973-08-09
FR2167426A2 (en) 1973-08-24
GB1414894A (en) 1975-11-19
DE2301233C3 (en) 1978-10-12

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