FR2275087A1 - Dispositif de reproduction d'images en noir et blanc utilisant un materiau presentant une phase smectique et systeme de teletransmission et telereprographie mettant en oeuvre ce dispositif - Google Patents

Dispositif de reproduction d'images en noir et blanc utilisant un materiau presentant une phase smectique et systeme de teletransmission et telereprographie mettant en oeuvre ce dispositif

Info

Publication number
FR2275087A1
FR2275087A1 FR7420715A FR7420715A FR2275087A1 FR 2275087 A1 FR2275087 A1 FR 2275087A1 FR 7420715 A FR7420715 A FR 7420715A FR 7420715 A FR7420715 A FR 7420715A FR 2275087 A1 FR2275087 A1 FR 2275087A1
Authority
FR
France
Prior art keywords
telephotoography
teletransmission
black
image reproduction
white image
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
FR7420715A
Other languages
English (en)
Other versions
FR2275087B1 (fr
Inventor
Michel Hareng
Serge Leberre
Eric Spitz
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 FR7420715A priority Critical patent/FR2275087A1/fr
Priority to US05/585,715 priority patent/US4040047A/en
Priority to DE2526521A priority patent/DE2526521C3/de
Priority to GB25452/75A priority patent/GB1507182A/en
Priority to JP50071869A priority patent/JPS6034311B2/ja
Publication of FR2275087A1 publication Critical patent/FR2275087A1/fr
Application granted granted Critical
Publication of FR2275087B1 publication Critical patent/FR2275087B1/fr
Granted 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 
    • G02F1/13—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 liquid crystals, e.g. single liquid crystal display cells
    • G02F1/132—Thermal activation of liquid crystals exhibiting a thermo-optic effect
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00—Liquid crystal materials
    • C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
    • C09K19/06—Non-steroidal liquid crystal compounds
    • C09K19/08—Non-steroidal liquid crystal compounds containing at least two non-condensed rings
    • C09K19/10—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings
    • C09K19/12—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings at least two benzene rings directly linked, e.g. biphenyls
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/024—Details of scanning heads ; Means for illuminating the original
    • H04N1/032—Details of scanning heads ; Means for illuminating the original for picture information reproduction
    • H04N1/036—Details of scanning heads ; Means for illuminating the original for picture information reproduction for optical reproduction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/74—Projection arrangements for image reproduction, e.g. using eidophor
    • H04N5/7416—Projection arrangements for image reproduction, e.g. using eidophor involving the use of a spatial light modulator, e.g. a light valve, controlled by a video signal
    • H04N5/7441—Projection arrangements for image reproduction, e.g. using eidophor involving the use of a spatial light modulator, e.g. a light valve, controlled by a video signal the modulator being an array of liquid crystal cells

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Nonlinear Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal (AREA)
  • Transforming Electric Information Into Light Information (AREA)
FR7420715A 1974-06-14 1974-06-14 Dispositif de reproduction d'images en noir et blanc utilisant un materiau presentant une phase smectique et systeme de teletransmission et telereprographie mettant en oeuvre ce dispositif Granted FR2275087A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FR7420715A FR2275087A1 (fr) 1974-06-14 1974-06-14 Dispositif de reproduction d'images en noir et blanc utilisant un materiau presentant une phase smectique et systeme de teletransmission et telereprographie mettant en oeuvre ce dispositif
US05/585,715 US4040047A (en) 1974-06-14 1975-06-10 Erasable thermo-optic storage display of a transmitted image
DE2526521A DE2526521C3 (de) 1974-06-14 1975-06-13 Vorrichtung zur Schwarz-Weiß-Bildwiedergabe unter Verwendung eines Materials mit einer smektischen Phase, sowie mit dieser Vorrichtung arbeitendes Fernübertragungs- und Fernreproduktionssystem
GB25452/75A GB1507182A (en) 1974-06-14 1975-06-13 Erasable thermo-optic storage display of a transmitted image
JP50071869A JPS6034311B2 (ja) 1974-06-14 1975-06-13 薄膜に記録映像を書込み，消去する連続記録方法および装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7420715A FR2275087A1 (fr) 1974-06-14 1974-06-14 Dispositif de reproduction d'images en noir et blanc utilisant un materiau presentant une phase smectique et systeme de teletransmission et telereprographie mettant en oeuvre ce dispositif

Publications (2)

Publication Number Publication Date
FR2275087A1 true FR2275087A1 (fr) 1976-01-09
FR2275087B1 FR2275087B1 (fr) 1981-06-19

Family

ID=9140071

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7420715A Granted FR2275087A1 (fr) 1974-06-14 1974-06-14 Dispositif de reproduction d'images en noir et blanc utilisant un materiau presentant une phase smectique et systeme de teletransmission et telereprographie mettant en oeuvre ce dispositif

Country Status (5)

Country Link
US (1) US4040047A (fr)
JP (1) JPS6034311B2 (fr)
DE (1) DE2526521C3 (fr)
FR (1) FR2275087A1 (fr)
GB (1) GB1507182A (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2753763A1 (de) * 1976-12-03 1978-06-08 Thomson Csf Fluessigkristallzelle
DE2819538A1 (de) * 1977-05-05 1978-11-09 Thomson Csf Bildwiedergabevorrichtung
WO1979000333A1 (fr) * 1977-12-01 1979-06-14 Thomson Csf Procede de telecopie utilisant une cellule a cristal liquide smectique et telecopieur emetteur-recepteur mettant en oeuvre ce procede
EP0026127A1 (fr) * 1979-09-18 1981-04-01 Thomson-Csf Dispositif de visualisation à mémoire
US4288822A (en) * 1977-09-23 1981-09-08 Thomson-Csf System for the analysis and the recording of monochromic images
FR2482345A1 (fr) * 1980-05-06 1981-11-13 Thomson Csf Cellule de visualisation a cristal liquide et dispositif de visualisation comprenant une telle cellule
FR2489564A1 (fr) * 1980-09-02 1982-03-05 Thomson Csf Procede et dispositif de visualisation utilisant un effet thermo-optique avec memoire dans une couche mince de cristal liquide disquotique
EP0063447A1 (fr) * 1981-04-06 1982-10-27 Minnesota Mining And Manufacturing Company Dispositif d'affichage à cristal liquide smectique adressé thermiquement
FR2507802A1 (fr) * 1981-06-10 1982-12-17 Thomson Csf Dispositif d'affichage a cristal liquide associant deux modes d'adressage
EP0012651B1 (fr) * 1978-12-15 1983-07-20 Thomson-Csf Dispositif d'affichage à cristal liquide

Families Citing this family (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4150396A (en) * 1974-09-06 1979-04-17 Thomson-Csf Erasable thermo-optic storage display of a transmitted color image
US4291948A (en) * 1977-11-10 1981-09-29 International Standard Electric Corporation Liquid crystal display incorporating positive and negative smectic material
GB1549584A (en) * 1978-03-02 1979-08-08 Standard Telephones Cables Ltd Temperature responsive device
GB2091753B (en) * 1981-01-23 1984-08-22 Standard Telephones Cables Ltd Use of 1,4-b15 (hydrocarbylamino) anthraquinos as dyes in the smetic layers of a liquid crystal cell
US4396997A (en) * 1981-05-26 1983-08-02 Hewlett-Packard Company Liquid crystal information storage and retrieval system
JPS5817484A (ja) * 1981-07-24 1983-02-01 富士ゼロックス株式会社 像表示装置
US4470151A (en) * 1981-08-24 1984-09-04 The Ltv Aerospace And Defense Co. Image motion and distortion stabilization for predetection scene information processing sensors
US4477151A (en) * 1981-12-28 1984-10-16 Itt Industries, Inc. Smectic liquid crystal cell with heat pulse and laser
US4595260A (en) * 1982-05-28 1986-06-17 Nec Corporation Liquid crystal projection display with even temperature elevation
US4530010A (en) * 1982-09-30 1985-07-16 Ltv Aerospace And Defense Company Dynamic infrared scene projector
JPS5994734A (ja) * 1982-11-22 1984-05-31 Oki Electric Ind Co Ltd 光記録用媒体
GB2132374A (en) * 1982-11-26 1984-07-04 Standard Telephones Cables Ltd A two-dimensional acousto-optic deflection arrangement
US4533215A (en) * 1982-12-02 1985-08-06 The United States Of America As Represented By The Secretary Of The Navy Real-time ultra-high resolution image projection display using laser-addressed liquid crystal light valve
JPS59155880A (ja) * 1983-02-25 1984-09-05 株式会社日立製作所 情報保持装置
JPS59197485A (ja) * 1983-04-26 1984-11-09 Sony Corp 液晶表示装置
US4545641A (en) * 1983-05-10 1985-10-08 Ltv Aerospace And Defense High speed erasing and rebiasing of thermoptic thin films in the medium and long-wave infrared
GB2152691B (en) * 1983-08-12 1986-11-12 Standard Telephones Cables Ltd Infra-red detector
GB8324642D0 (en) * 1983-09-14 1983-10-19 Univ Manchester Liquid crystal storage device
GB2161951B (en) * 1984-07-17 1988-01-20 Stc Plc Laser addressed smectic displays
JPS61158316A (ja) * 1984-12-29 1986-07-18 Sony Corp 液晶表示装置
US4699731A (en) * 1985-05-23 1987-10-13 Nec Corporation Liquid crystal material for a thermal writing liquid crystal element
JPS6248790A (ja) * 1985-08-12 1987-03-03 ザ　ゼネラル　エレクトリツク　カンパニ−，ピ−．エル．シ−． 熱的画像形成装置
US4749261A (en) * 1986-01-17 1988-06-07 Taliq Corporation Shatter-proof liquid crystal panel with infrared filtering properties
GB8606783D0 (en) * 1986-03-19 1986-04-23 Gen Electric Co Plc Picture synthesizers
US4815035A (en) * 1986-04-08 1989-03-21 Trw Inc. Scrolling liquid crystal spatial light modulator
EP0271900B1 (fr) * 1986-12-17 1993-12-29 Canon Kabushiki Kaisha Méthode et appareil d'enregistrement optique
US5319481A (en) * 1986-12-23 1994-06-07 Raychem Corporation Encapsulated liquid crystal optical read/write storage medium and system
US4757472A (en) * 1986-12-31 1988-07-12 Tecon Memory, Inc. Electrophotographic optical memory system
US4965672A (en) * 1987-05-11 1990-10-23 The Mead Corporation Method and apparatus for halftone imaging
US5026145A (en) * 1987-09-24 1991-06-25 Asahi Kogaku Kogyo Kabushiki Kaisha Exposure apparatus
GB8802025D0 (en) * 1988-01-29 1988-02-24 Minnesota Mining & Mfg Imaging method & apparatus
EP0356174B1 (fr) * 1988-08-19 1995-03-15 Victor Company Of Japan, Limited Appareil de reproduction pour un support d'enregistrement à image électrostatique latente
JPH0273241A (ja) * 1988-09-08 1990-03-13 Hitachi Ltd 投射形ディスプレイのスクリーン明るさ制御方法及び装置
US4974941A (en) * 1989-03-08 1990-12-04 Hercules Incorporated Process of aligning and realigning liquid crystal media
US5115330A (en) * 1990-08-09 1992-05-19 Western Publishing Company Liquid crystal writing slate
US5111316A (en) * 1990-08-09 1992-05-05 Western Publishing Company Liquid crystal writing state
US5117297A (en) * 1990-08-09 1992-05-26 Western Publishing Company Liquid crystal writing slate with DC imaging system
US5136404A (en) * 1990-08-09 1992-08-04 Western Publishing Company Liquid crystal writing slate with improved light-transmission retention
US5197242A (en) * 1992-07-17 1993-03-30 Allied-Signal Inc. Dual-pane thermal window with liquid crystal shade
US5701185A (en) * 1994-11-21 1997-12-23 Polaroid Corporation Spatial light modulator assembly for adapting a photographic printer to print electronic images
EP0752785A3 (fr) * 1995-07-03 1998-03-25 Matsushita Electric Industrial Co., Ltd. Dispositif d'affichage vidéo
TW200407654A (en) * 2002-10-11 2004-05-16 Tatsuo Uchida Screen for rear projection display

Family Cites Families (10)

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GB1120093A (en) * 1965-06-29 1968-07-17 Westinghouse Electric Corp Display system
US3438022A (en) * 1966-07-07 1969-04-08 Teeg Research Inc Thermochromic display device
DE1270073B (de) * 1967-03-09 1968-06-12 Telefunken Patent Anordnung zum Herstellen permanenter flaechenhafter Symbole
US3524726A (en) * 1968-04-04 1970-08-18 Gen Time Corp Smectographic display
CA937664A (en) * 1968-07-31 1973-11-27 Rca Corporation Liquid crystal display assembly having independent contrast and speed of response controls
US3691482A (en) * 1970-01-19 1972-09-12 Bell Telephone Labor Inc Display system
US3637291A (en) * 1970-02-11 1972-01-25 Ncr Co Display device with inherent memory
FR2109512A5 (fr) * 1970-10-30 1972-05-26 Thomson Csf
US3917481A (en) * 1972-02-24 1975-11-04 Xerox Corp Liquid crystal compositions between electrodes, one of which is a photoconductor
US3916420A (en) * 1974-05-06 1975-10-28 Ncr Co Printer and display system

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2753763A1 (de) * 1976-12-03 1978-06-08 Thomson Csf Fluessigkristallzelle
DE2819538A1 (de) * 1977-05-05 1978-11-09 Thomson Csf Bildwiedergabevorrichtung
US4288822A (en) * 1977-09-23 1981-09-08 Thomson-Csf System for the analysis and the recording of monochromic images
WO1979000333A1 (fr) * 1977-12-01 1979-06-14 Thomson Csf Procede de telecopie utilisant une cellule a cristal liquide smectique et telecopieur emetteur-recepteur mettant en oeuvre ce procede
FR2410924A1 (fr) * 1977-12-01 1979-06-29 Thomson Csf Procede de telecopie utilisant une cellule a cristal liquide smectique et telecopieur emetteur-recepteur mettant en oeuvre ce procede
EP0012651B1 (fr) * 1978-12-15 1983-07-20 Thomson-Csf Dispositif d'affichage à cristal liquide
EP0026127A1 (fr) * 1979-09-18 1981-04-01 Thomson-Csf Dispositif de visualisation à mémoire
FR2482345A1 (fr) * 1980-05-06 1981-11-13 Thomson Csf Cellule de visualisation a cristal liquide et dispositif de visualisation comprenant une telle cellule
EP0047198A2 (fr) * 1980-09-02 1982-03-10 Thomson-Csf Procédé de visualisation utilisant un effet thermo-optique avec mémoire dans une couche mince de cristal liquide disquotique, et cristaux liquides disquotiques présentant un tel effet
EP0047198A3 (en) * 1980-09-02 1982-03-31 Thomson-Csf Display method using a thermo-optical effect with memory in a film of disc-like liquid crystals, and disc-like liquid crystals showing such an effect
FR2489564A1 (fr) * 1980-09-02 1982-03-05 Thomson Csf Procede et dispositif de visualisation utilisant un effet thermo-optique avec memoire dans une couche mince de cristal liquide disquotique
EP0063447A1 (fr) * 1981-04-06 1982-10-27 Minnesota Mining And Manufacturing Company Dispositif d'affichage à cristal liquide smectique adressé thermiquement
FR2507802A1 (fr) * 1981-06-10 1982-12-17 Thomson Csf Dispositif d'affichage a cristal liquide associant deux modes d'adressage
EP0068939A1 (fr) * 1981-06-10 1983-01-05 Thomson-Csf Dispositif d'affichage à cristal liquide associant deux modes d'adressage

Also Published As

Publication number Publication date
JPS5112728A (fr) 1976-01-31
DE2526521C3 (de) 1982-02-18
DE2526521B2 (de) 1981-06-04
US4040047A (en) 1977-08-02
FR2275087B1 (fr) 1981-06-19
GB1507182A (en) 1978-04-12
DE2526521A1 (de) 1976-01-02
JPS6034311B2 (ja) 1985-08-08

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Legal Events

Date Code Title Description
ST Notification of lapse