FR2399680A1 - Dispositif a transparence variable et sans dispersion - Google Patents

Dispositif a transparence variable et sans dispersion

Info

Publication number
FR2399680A1
FR2399680A1 FR7821956A FR7821956A FR2399680A1 FR 2399680 A1 FR2399680 A1 FR 2399680A1 FR 7821956 A FR7821956 A FR 7821956A FR 7821956 A FR7821956 A FR 7821956A FR 2399680 A1 FR2399680 A1 FR 2399680A1
Authority
FR
France
Prior art keywords
transparency
photosensitive element
variable transparency
dispersion
vehicles
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.)
Pending
Application number
FR7821956A
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of FR2399680A1 publication Critical patent/FR2399680A1/fr
Pending 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
    • G02F1/13725—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 based on guest-host interaction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R1/00—Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
    • B60R1/02—Rear-view mirror arrangements
    • B60R1/08—Rear-view mirror arrangements involving special optical features, e.g. avoiding blind spots, e.g. convex mirrors; Side-by-side associations of rear-view and other mirrors
    • B60R1/083—Anti-glare mirrors, e.g. "day-night" mirrors
    • B60R1/088—Anti-glare mirrors, e.g. "day-night" mirrors using a cell of electrically changeable optical characteristic, e.g. liquid-crystal or electrochromic mirrors
    • 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
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal cells
    • G02F1/13318—Circuits comprising a photodetector
    • 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
    • G02F1/13731—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 based on a field-induced phase transition
    • G02F1/13737—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 based on a field-induced phase transition in liquid crystals doped with a pleochroic dye

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Mathematical Physics (AREA)
  • Mechanical Engineering (AREA)
  • Liquid Crystal (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Mechanical Light Control Or Optical Switches (AREA)

Abstract

L'invention concerne un dispositif à transparence variable, du type comportant deux plaques-supports parallèles pourvues sur leurs faves voisines de revêtements (électrodes) transparents et électriquement conducteurs et entre lesquelles est prévue une couche susceptible d'être amenée dans deux états optiques différents. Le dispositif est relié électriquement à un élément photosensible 5 de manière que sa transparence à la lumière varie en permanence en fonction de l'intensité de la lumière incidente sur ledit élément photosensible. Application à la réalisation de rétroviseurs et de pare-soleil pour des véhicules, notamment des véhicules automobiles.
FR7821956A 1977-08-04 1978-07-25 Dispositif a transparence variable et sans dispersion Pending FR2399680A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2735195A DE2735195C2 (de) 1977-08-04 1977-08-04 Blendfreier Rückspiegel

Publications (1)

Publication Number Publication Date
FR2399680A1 true FR2399680A1 (fr) 1979-03-02

Family

ID=6015636

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7821956A Pending FR2399680A1 (fr) 1977-08-04 1978-07-25 Dispositif a transparence variable et sans dispersion

Country Status (7)

Country Link
US (1) US4274713A (fr)
JP (1) JPS5428158A (fr)
DE (1) DE2735195C2 (fr)
FR (1) FR2399680A1 (fr)
GB (1) GB1604123A (fr)
IT (1) IT1097985B (fr)
SE (1) SE7808410L (fr)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2513198A1 (fr) * 1981-09-21 1983-03-25 Herrmann Henri Retroviseur anti-eblouissant
EP0078457A2 (fr) * 1981-10-29 1983-05-11 Firma Carl Zeiss Méthode et appareil pour l'augmentation temporaire du grade d'absorption des dispositifs optiques transmissives
EP0078463A1 (fr) * 1981-10-29 1983-05-11 Firma Carl Zeiss Contrôle continu de la charge des couches électrochromiques
EP0078473A1 (fr) * 1981-10-29 1983-05-11 Firma Carl Zeiss Contrôle à échelon de la charge pour couches électrochromiques
EP0086873A1 (fr) * 1981-10-28 1983-08-31 SCHÜCO Heinz Schürmann GmbH & Co. Vitre pour une fenêtre ou une porte, comportant un dispositif d'obsurcissement
EP0106636A2 (fr) * 1982-10-20 1984-04-25 The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Miroir comportant une cellule à cristal liquide
EP0111907A2 (fr) * 1982-12-16 1984-06-27 Nippondenso Co., Ltd. Réflecteur non-éblouissant
FR2562006A1 (fr) * 1984-03-28 1985-10-04 Tokai Rika Co Ltd Retroviseur anti-eblouissant
FR2583499A1 (fr) * 1985-06-14 1986-12-19 Cibie Projecteurs Projecteur de vehicule automobile a variation de faisceau
FR2590965A1 (fr) * 1985-11-29 1987-06-05 Cibie Projecteurs Feu de signalisation a deux etats d'eclairement pour vehicule tel qu'un vehicule automobile
WO1987006018A1 (fr) * 1986-03-24 1987-10-08 Daniele Senatore Lunettes a transparence reglable
WO1992011559A1 (fr) * 1990-12-21 1992-07-09 Asulab S.A. Dispositif optique a transmittance variable notamment pour retroviseur
FR2672857A1 (fr) * 1991-02-14 1992-08-21 Renault Dispositif de retrovision electronique laterale pour vehicule automobile.
FR2702719A1 (fr) * 1993-03-19 1994-09-23 Dynaprog Sarl Rétroviseur anti-éblouissant à filtre électro-optique.

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3153620C2 (fr) * 1980-04-01 1992-01-23 Canon K.K., Tokio/Tokyo, Jp
DE3127720A1 (de) * 1981-07-14 1983-02-10 Hohe Kg, 6981 Collenberg Abblendbarer rueckblickspiegel insbesondere fuer kraftfahrzeuge
US4550990A (en) * 1981-08-25 1985-11-05 Forschungsgesellschaft Fur Biomedizinische Technik E.V. Arrangement for the carrying out of eye examination
DE3144143A1 (de) * 1981-11-06 1983-05-19 Bosch Gmbh Robert Abblendbarer rueckspiegel
DE3302195A1 (de) * 1983-01-24 1983-08-11 Miroslav 8000 München Kupsa Spiegel mit regulierbarer spiegelung
DE3332083A1 (de) * 1983-02-03 1984-08-09 Recknagel, Friedrich Wilhelm, 8671 Selbitz Vorrichtung zum blendungsschutz
JPS6041927U (ja) * 1983-08-30 1985-03-25 トヨタ自動車株式会社 液晶防眩ミラ−
US4688901A (en) * 1984-06-11 1987-08-25 Johnson Light Valve Inc. Liquid crystal light valve method and apparatus using right and left-handed twist cholesteric liquid crystal
US4660937A (en) * 1984-06-25 1987-04-28 Crystaloid Electronics Company Dichroic dye-nematic liquid crystal mirror
JPS6141128A (ja) * 1984-08-01 1986-02-27 Tokai Rika Co Ltd 自動車用バツクミラ−の防眩装置
JPS6145227A (ja) * 1984-08-08 1986-03-05 Nippon Denso Co Ltd 液晶防眩反射鏡
DE3443488C2 (de) * 1984-11-29 1998-04-16 Hubert K Block Gegen störendes Außenlicht wirkende Verglasung, insbesondere für Kraftfahrzeuge, Schiffe und Flugzeuge
DE3643691C1 (de) * 1986-12-20 1992-03-05 Dornier Gmbh Thermalkontrollschicht
SE463053B (sv) * 1988-03-30 1990-10-01 Saab Scania Ab Arrangemang vid ett taeckelement av ett aatminstone delvis transparent basmaterial
DE4121383A1 (de) * 1991-06-28 1993-01-07 Bayerische Motoren Werke Ag Aufhellen einer von zwei elektrooptisch verdunkelten fensterscheiben eines kraftfahrzeuges
CN102862520A (zh) * 2012-09-25 2013-01-09 江苏亿成光电科技有限公司 自动防眩目后视镜
DE102017203627A1 (de) 2017-03-06 2018-09-06 Am7Vision Gmbh Adaptives Scheibenverbundelement

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3280701A (en) * 1961-09-05 1966-10-25 Donnelly Mirrors Inc Optically variable one-way mirror
IT946051B (it) * 1970-12-04 1973-05-21 Hoffmann La Roche Cellula ottica
US3694053A (en) * 1971-06-22 1972-09-26 Bell Telephone Labor Inc Nematic liquid crystal device
US3837730A (en) * 1973-11-28 1974-09-24 Bell Telephone Labor Inc Matrix-addressed liquid crystal display
IT985834B (it) * 1973-05-03 1974-12-20 Fiat Spa Schermo a trasparenza variabile
FR2233828A5 (en) * 1973-06-13 1975-01-10 Peugeot & Renault Anti dazzle rear view vehicle mirror - transparency of liquid crystal layer is reduced by photoelectric cells
CH564813A5 (fr) * 1973-11-12 1975-07-31 Bbc Brown Boveri & Cie
DE2416172A1 (de) * 1974-04-03 1975-10-16 Volkswagenwerk Ag Abblendbarer rueckblickspiegel fuer kraftfahrzeuge
US3912369A (en) * 1974-07-02 1975-10-14 Gen Electric Single polarizer reflective liquid crystal display
US3961181A (en) * 1975-02-18 1976-06-01 Golden Eddie R Eye-shading means for automotive vehicle operators
US4088392A (en) * 1975-04-13 1978-05-09 American Cyanamid Company Electrochromic variable optical transmission device with a liquid electrolyte
US4093356A (en) * 1977-02-14 1978-06-06 General Electric Company Transflective liquid crystal display

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2513198A1 (fr) * 1981-09-21 1983-03-25 Herrmann Henri Retroviseur anti-eblouissant
EP0086873A1 (fr) * 1981-10-28 1983-08-31 SCHÜCO Heinz Schürmann GmbH & Co. Vitre pour une fenêtre ou une porte, comportant un dispositif d'obsurcissement
EP0078457A2 (fr) * 1981-10-29 1983-05-11 Firma Carl Zeiss Méthode et appareil pour l'augmentation temporaire du grade d'absorption des dispositifs optiques transmissives
EP0078463A1 (fr) * 1981-10-29 1983-05-11 Firma Carl Zeiss Contrôle continu de la charge des couches électrochromiques
EP0078473A1 (fr) * 1981-10-29 1983-05-11 Firma Carl Zeiss Contrôle à échelon de la charge pour couches électrochromiques
EP0078457A3 (en) * 1981-10-29 1983-06-22 Firma Carl Zeiss Method and apparatus for the temporary increase of the absorption rate of transmitting optical devices
EP0106636A2 (fr) * 1982-10-20 1984-04-25 The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Miroir comportant une cellule à cristal liquide
EP0106636A3 (en) * 1982-10-20 1986-03-12 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Liquid crystal mirror displays
EP0111907A3 (en) * 1982-12-16 1985-01-09 Nippondenso Co., Ltd. Non-glaring type reflector
EP0111907A2 (fr) * 1982-12-16 1984-06-27 Nippondenso Co., Ltd. Réflecteur non-éblouissant
FR2562006A1 (fr) * 1984-03-28 1985-10-04 Tokai Rika Co Ltd Retroviseur anti-eblouissant
FR2583499A1 (fr) * 1985-06-14 1986-12-19 Cibie Projecteurs Projecteur de vehicule automobile a variation de faisceau
EP0206908A1 (fr) * 1985-06-14 1986-12-30 Valeo Vision Projecteur de véhicule automobile à coupure de faisceau
FR2590965A1 (fr) * 1985-11-29 1987-06-05 Cibie Projecteurs Feu de signalisation a deux etats d'eclairement pour vehicule tel qu'un vehicule automobile
WO1987006018A1 (fr) * 1986-03-24 1987-10-08 Daniele Senatore Lunettes a transparence reglable
WO1992011559A1 (fr) * 1990-12-21 1992-07-09 Asulab S.A. Dispositif optique a transmittance variable notamment pour retroviseur
FR2672857A1 (fr) * 1991-02-14 1992-08-21 Renault Dispositif de retrovision electronique laterale pour vehicule automobile.
FR2702719A1 (fr) * 1993-03-19 1994-09-23 Dynaprog Sarl Rétroviseur anti-éblouissant à filtre électro-optique.

Also Published As

Publication number Publication date
IT1097985B (it) 1985-08-31
GB1604123A (en) 1981-12-02
US4274713A (en) 1981-06-23
SE7808410L (sv) 1979-02-05
DE2735195C2 (de) 1982-05-06
JPS5428158A (en) 1979-03-02
IT7826218A0 (it) 1978-07-28
DE2735195A1 (de) 1979-02-15

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