FR2408157A1 - Dispositif de filtre optique - Google Patents

Dispositif de filtre optique

Info

Publication number
FR2408157A1
FR2408157A1 FR7727571A FR7727571A FR2408157A1 FR 2408157 A1 FR2408157 A1 FR 2408157A1 FR 7727571 A FR7727571 A FR 7727571A FR 7727571 A FR7727571 A FR 7727571A FR 2408157 A1 FR2408157 A1 FR 2408157A1
Authority
FR
France
Prior art keywords
optical filter
advertising
electrodes
liquid crystal
transparent
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.)
Withdrawn
Application number
FR7727571A
Other languages
English (en)
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.)
ZONUS GERARD
Original Assignee
ZONUS GERARD
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 ZONUS GERARD filed Critical ZONUS GERARD
Priority to FR7727571A priority Critical patent/FR2408157A1/fr
Publication of FR2408157A1 publication Critical patent/FR2408157A1/fr
Withdrawn legal-status Critical Current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
    • G02F1/137—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal (AREA)

Abstract

LE FILTRE OPTIQUE COMPREND DEUX FEUILLES TRANSPARENTES 1 ET 2 EN OCRE OU MATIERE PLASTIQUE, ENTRE LESQUELLES SE TROUVE UN CRISTAL LIQUIDE NEMATIQUE 3. SUR LES FACES LES FEUILLES EN CONTACT AVEC LE CRISTAL LIQUIDE SONT DEPOSEES DES ELECTRODES TRANSPARENTES. LORSQU'UNE DIFFERENCE DE POTENTIEL EST APPLIQUEE AUX ELECTRODES, LE CHAMP ELECTRIQUE E REND LE CRISTAL OPAQUE. APPLICATION A LA GARNITURE DE BAIES, DE FENETRES ET DE PORTES, EGALEMENT A LA PUBLICITE ET LA DECORATION.
FR7727571A 1977-09-13 1977-09-13 Dispositif de filtre optique Withdrawn FR2408157A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7727571A FR2408157A1 (fr) 1977-09-13 1977-09-13 Dispositif de filtre optique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7727571A FR2408157A1 (fr) 1977-09-13 1977-09-13 Dispositif de filtre optique

Publications (1)

Publication Number Publication Date
FR2408157A1 true FR2408157A1 (fr) 1979-06-01

Family

ID=9195318

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7727571A Withdrawn FR2408157A1 (fr) 1977-09-13 1977-09-13 Dispositif de filtre optique

Country Status (1)

Country Link
FR (1) FR2408157A1 (fr)

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Legal Events

Date Code Title Description
ST Notification of lapse