GB1444273A - Optical image relay - Google Patents

Optical image relay

Info

Publication number
GB1444273A
GB1444273A GB3613873A GB3613873A GB1444273A GB 1444273 A GB1444273 A GB 1444273A GB 3613873 A GB3613873 A GB 3613873A GB 3613873 A GB3613873 A GB 3613873A GB 1444273 A GB1444273 A GB 1444273A
Authority
GB
United Kingdom
Prior art keywords
plate
photoconductive layer
optical image
image
temperature
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
GB3613873A
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries Ltd
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 Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1444273A publication Critical patent/GB1444273A/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)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Photo Coupler, Interrupter, Optical-To-Optical Conversion Devices (AREA)
  • Photoreceptors In Electrophotography (AREA)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)

Abstract

1444273 Modulating light PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 30 July 1973 [2 Aug 1972] 36138/73 Heading H4F In an optical image converting relay of the type comprising a variably birefringent electrooptic plate and a photoconductive layer disposed between electrodes, e.g. as in Specification 1,387,712, and wherein a light source is provided to project an image through one electrode on to the photoconductive layer and in use the plate is maintained at or near its Curie temperature, the Curie temperature and the temperature at which the photoconductor exhibits maximum sensitivity to the image light are arranged to be substantially equal. In the preferred embodiment, the electro-optic plate is of KDP and examples are given of four different extents of deuteration thereof give Curie temperatures matched for different photoconductor materials (PbS, ZnS, PbTe, Te, PbSe) and illuminating wavelengths. The latter may be infra-red, visible or ultra-violet.
GB3613873A 1972-08-02 1973-07-30 Optical image relay Expired GB1444273A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7227915A FR2194979B2 (en) 1972-08-02 1972-08-02

Publications (1)

Publication Number Publication Date
GB1444273A true GB1444273A (en) 1976-07-28

Family

ID=9102773

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3613873A Expired GB1444273A (en) 1972-08-02 1973-07-30 Optical image relay

Country Status (5)

Country Link
JP (1) JPS5323169B2 (en)
CA (1) CA997845A (en)
DE (1) DE2336757A1 (en)
FR (1) FR2194979B2 (en)
GB (1) GB1444273A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2382730A1 (en) * 1977-03-03 1978-09-29 Commissariat Energie Atomique Graphic data inscription in form of localised double refractions - uses ferro-electric ceramic with isotropic layer with photoconducting layer between two electrodes
JPS5646208A (en) * 1979-09-19 1981-04-27 Sumitomo Electric Ind Ltd Picture converting element

Also Published As

Publication number Publication date
CA997845A (en) 1976-09-28
DE2336757A1 (en) 1974-02-14
JPS5323169B2 (en) 1978-07-13
FR2194979B2 (en) 1975-03-07
FR2194979A2 (en) 1974-03-01
JPS4960243A (en) 1974-06-11

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee