FR2378295A1 - Miroir a cristal liquide, particulierement destine a etre utilise comme retroviseur de vehicule. - Google Patents

Miroir a cristal liquide, particulierement destine a etre utilise comme retroviseur de vehicule.

Info

Publication number
FR2378295A1
FR2378295A1 FR7801927A FR7801927A FR2378295A1 FR 2378295 A1 FR2378295 A1 FR 2378295A1 FR 7801927 A FR7801927 A FR 7801927A FR 7801927 A FR7801927 A FR 7801927A FR 2378295 A1 FR2378295 A1 FR 2378295A1
Authority
FR
France
Prior art keywords
mirror
liquid crystal
electric field
especially intended
reflected
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
FR7801927A
Other languages
English (en)
Other versions
FR2378295B1 (fr
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.)
Fiat SpA
Original Assignee
Fiat SpA
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 Fiat SpA filed Critical Fiat SpA
Publication of FR2378295A1 publication Critical patent/FR2378295A1/fr
Application granted granted Critical
Publication of FR2378295B1 publication Critical patent/FR2378295B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/08—Mirrors
    • 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

Landscapes

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

Abstract

Ce miroir comprend un miroir normal dont la surface avant est recouverte d'une pellicule de cristal liquide, enfermée sous une lame de verre 14 et qui prend un état de turbulence et obscurcit l'image réfléchie sous l'action d'un champ électrique. Les surfaces en regard de miroir et de lame sont revêtues de pellicules métalliques très minces et transparentes connectées à une alimentation électrique. La couche 18 de métallisation de la lame 14 est réduite selon des lignes de quadrillage où subsistent des zones 30 non métallisees et carrées de 0,3 à 1 mm de côté, à travers lesquelles le conducteur voit l'image réfléchie par le miroir. Une cellule photo-électrique établit le champ électrique uniquement lorsque la lumière incidente atteint une intensité pouvant éblouir le conducteur.
FR7801927A 1977-01-25 1978-01-24 Miroir a cristal liquide, particulierement destine a etre utilise comme retroviseur de vehicule. Granted FR2378295A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT67156/77A IT1082518B (it) 1977-01-25 1977-01-25 Specchio a cristallo liquido da impiegare particolarmente come retrovisore per veicoli

Publications (2)

Publication Number Publication Date
FR2378295A1 true FR2378295A1 (fr) 1978-08-18
FR2378295B1 FR2378295B1 (fr) 1982-10-29

Family

ID=11300052

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7801927A Granted FR2378295A1 (fr) 1977-01-25 1978-01-24 Miroir a cristal liquide, particulierement destine a etre utilise comme retroviseur de vehicule.

Country Status (10)

Country Link
US (1) US4200361A (fr)
AR (1) AR220118A1 (fr)
AT (1) AT355436B (fr)
BE (1) BE863155A (fr)
CH (1) CH619790A5 (fr)
ES (1) ES466289A1 (fr)
FR (1) FR2378295A1 (fr)
GB (1) GB1554133A (fr)
IT (1) IT1082518B (fr)
SE (1) SE7800742L (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0144053A2 (fr) * 1983-11-29 1985-06-12 Nippondenso Co., Ltd. Réflecteur du type anti-éblouissement
EP0168497A1 (fr) * 1983-12-29 1986-01-22 Nippondenso Co., Ltd. Miroir anti-eblouissant
FR2702719A1 (fr) * 1993-03-19 1994-09-23 Dynaprog Sarl Rétroviseur anti-éblouissant à filtre électro-optique.

Families Citing this family (101)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2934451A1 (de) * 1979-08-25 1981-03-12 Vdo Adolf Schindling Ag, 6000 Frankfurt Abblendbarer rueckspiegel, insbesondere fuer kraftfahrzeuge.
US4542960A (en) * 1982-06-30 1985-09-24 International Business Machines Corporation Fringe-field switched storage-effect liquid crystal display devices
DE3379078D1 (en) * 1982-10-20 1989-03-02 Secr Defence Brit Liquid crystal mirror displays
US4606612A (en) * 1983-06-10 1986-08-19 Canon Kabushiki Kaisha Optical phase filter using liquid crystal
DE3474650D1 (en) * 1983-11-14 1988-11-24 Nippon Denso Co Drive apparatus for a liquid crystal dazzle free mirror arrangement
US4623222A (en) * 1983-11-14 1986-11-18 Nippondenso Co., Ltd. Liquid crystal type dazzle-free transmissive-reflective mirror
JPS60139545A (ja) * 1983-12-27 1985-07-24 Nippon Denso Co Ltd 車両用防眩型反射鏡駆動装置
JPS60148733A (ja) * 1984-01-12 1985-08-06 Nippon Denso Co Ltd 車両用防眩型反射鏡駆動装置
JPS60169347A (ja) * 1984-02-13 1985-09-02 Nippon Denso Co Ltd 車両用防眩型反射鏡駆動装置
JPS60174342A (ja) * 1984-02-16 1985-09-07 Nippon Denso Co Ltd 車両用防眩型反射鏡駆動装置
JPS60178402A (ja) * 1984-02-27 1985-09-12 Nippon Denso Co Ltd ハ−フミラ−
JP2721497B2 (ja) * 1984-03-19 1998-03-04 ケント・ステート・ユニバーシティ 光変調性物質の製造方法
JPS60156528U (ja) * 1984-03-28 1985-10-18 株式会社東海理化電機製作所 防眩ミラ−
US4696548A (en) * 1984-06-08 1987-09-29 Nippon Soken, Inc. Antiglare mirror for an automobile
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
US4671618A (en) * 1986-05-22 1987-06-09 Wu Bao Gang Liquid crystalline-plastic material having submillisecond switch times and extended memory
US4673255A (en) * 1986-05-22 1987-06-16 John West Method of controlling microdroplet growth in polymeric dispersed liquid crystal
US4685771A (en) * 1985-09-17 1987-08-11 West John L Liquid crystal display material comprising a liquid crystal dispersion in a thermoplastic resin
US4712879A (en) * 1986-04-02 1987-12-15 Donnelly Corporation Electrochromic mirror
DE8615560U1 (de) * 1986-06-10 1986-08-21 Mittelhäuser, Bernhard, 3002 Wedemark Innenrückblickspiegel für Kraftfahrzeuge
US4793690A (en) * 1986-07-18 1988-12-27 Donnelly Corporation Rearview mirror control circuit
US4799768A (en) * 1987-04-27 1989-01-24 Donnelly Corporation Automatic rearview mirror with filtered light sensors
GB8827603D0 (en) * 1988-11-25 1988-12-29 Meek A A R Mirrors
US5446576A (en) * 1990-11-26 1995-08-29 Donnelly Corporation Electrochromic mirror for vehicles with illumination and heating control
CH684032A5 (fr) * 1991-02-13 1994-06-30 Asulab Sa Dispositif optique commandable en fréquence.
US5193029A (en) * 1991-11-19 1993-03-09 Donnelly Corporation Single sensor adaptive drive circuit for rearview mirror system
US5253109A (en) * 1992-04-27 1993-10-12 Donnelly Corporation Electro-optic device with constant light transmitting area
US5285060A (en) * 1992-12-15 1994-02-08 Donnelly Corporation Display for automatic rearview mirror
US5670935A (en) 1993-02-26 1997-09-23 Donnelly Corporation Rearview vision system for vehicle including panoramic view
US5550677A (en) * 1993-02-26 1996-08-27 Donnelly Corporation Automatic rearview mirror system using a photosensor array
US5910854A (en) 1993-02-26 1999-06-08 Donnelly Corporation Electrochromic polymeric solid films, manufacturing electrochromic devices using such solid films, and processes for making such solid films and devices
US6822563B2 (en) 1997-09-22 2004-11-23 Donnelly Corporation Vehicle imaging system with accessory control
US7339149B1 (en) * 1993-02-26 2008-03-04 Donnelly Corporation Vehicle headlight control using imaging sensor
US5877897A (en) * 1993-02-26 1999-03-02 Donnelly Corporation Automatic rearview mirror, vehicle lighting control and vehicle interior monitoring system using a photosensor array
US5521744A (en) * 1993-12-02 1996-05-28 Mirror Systems, Inc. Dimmable safety mirror suitable for motor vehicles and method of operation
US5564813A (en) * 1994-03-30 1996-10-15 United Technologies Automotive, Inc. Sun visor lamp
US5668663A (en) 1994-05-05 1997-09-16 Donnelly Corporation Electrochromic mirrors and devices
US6891563B2 (en) 1996-05-22 2005-05-10 Donnelly Corporation Vehicular vision system
US7655894B2 (en) 1996-03-25 2010-02-02 Donnelly Corporation Vehicular image sensing system
US6172613B1 (en) 1998-02-18 2001-01-09 Donnelly Corporation Rearview mirror assembly incorporating vehicle information display
US6124886A (en) 1997-08-25 2000-09-26 Donnelly Corporation Modular rearview mirror assembly
US6326613B1 (en) 1998-01-07 2001-12-04 Donnelly Corporation Vehicle interior mirror assembly adapted for containing a rain sensor
US8294975B2 (en) 1997-08-25 2012-10-23 Donnelly Corporation Automotive rearview mirror assembly
US6445287B1 (en) 2000-02-28 2002-09-03 Donnelly Corporation Tire inflation assistance monitoring system
US8288711B2 (en) 1998-01-07 2012-10-16 Donnelly Corporation Interior rearview mirror system with forwardly-viewing camera and a control
US6329925B1 (en) 1999-11-24 2001-12-11 Donnelly Corporation Rearview mirror assembly with added feature modular display
US6477464B2 (en) 2000-03-09 2002-11-05 Donnelly Corporation Complete mirror-based global-positioning system (GPS) navigation solution
US6693517B2 (en) 2000-04-21 2004-02-17 Donnelly Corporation Vehicle mirror assembly communicating wirelessly with vehicle accessories and occupants
US7370983B2 (en) 2000-03-02 2008-05-13 Donnelly Corporation Interior mirror assembly with display
AU2001243285A1 (en) 2000-03-02 2001-09-12 Donnelly Corporation Video mirror systems incorporating an accessory module
US7004593B2 (en) 2002-06-06 2006-02-28 Donnelly Corporation Interior rearview mirror system with compass
US7167796B2 (en) 2000-03-09 2007-01-23 Donnelly Corporation Vehicle navigation system for use with a telematics system
US7255451B2 (en) 2002-09-20 2007-08-14 Donnelly Corporation Electro-optic mirror cell
ES2287266T3 (es) 2001-01-23 2007-12-16 Donnelly Corporation Sistema de iluminacion de vehiculos mejorado.
US7581859B2 (en) 2005-09-14 2009-09-01 Donnelly Corp. Display device for exterior rearview mirror
US6759945B2 (en) * 2001-03-29 2004-07-06 Vtec Technologies, Inc. Variable transmittance birefringent device
US6882287B2 (en) 2001-07-31 2005-04-19 Donnelly Corporation Automotive lane change aid
US7697027B2 (en) 2001-07-31 2010-04-13 Donnelly Corporation Vehicular video system
US6918674B2 (en) 2002-05-03 2005-07-19 Donnelly Corporation Vehicle rearview mirror system
ES2391556T3 (es) 2002-05-03 2012-11-27 Donnelly Corporation Sistema de detección de objetos para vehículo
US7329013B2 (en) 2002-06-06 2008-02-12 Donnelly Corporation Interior rearview mirror system with compass
US7274501B2 (en) 2002-09-20 2007-09-25 Donnelly Corporation Mirror reflective element assembly
US7310177B2 (en) 2002-09-20 2007-12-18 Donnelly Corporation Electro-optic reflective element assembly
US7289037B2 (en) 2003-05-19 2007-10-30 Donnelly Corporation Mirror assembly for vehicle
US7446924B2 (en) 2003-10-02 2008-11-04 Donnelly Corporation Mirror reflective element assembly including electronic component
US7308341B2 (en) 2003-10-14 2007-12-11 Donnelly Corporation Vehicle communication system
US7526103B2 (en) 2004-04-15 2009-04-28 Donnelly Corporation Imaging system for vehicle
US7881496B2 (en) * 2004-09-30 2011-02-01 Donnelly Corporation Vision system for vehicle
US7720580B2 (en) 2004-12-23 2010-05-18 Donnelly Corporation Object detection system for vehicle
WO2006106515A2 (fr) * 2005-04-05 2006-10-12 Alphamirror Inc. Systeme de miroir a cristaux liquides a attenuation lumineuse automatique
US7626749B2 (en) 2005-05-16 2009-12-01 Donnelly Corporation Vehicle mirror assembly with indicia at reflective element
EP1949666B1 (fr) 2005-11-01 2013-07-17 Magna Mirrors of America, Inc. Retroviseur interieur a affichage
US7972045B2 (en) 2006-08-11 2011-07-05 Donnelly Corporation Automatic headlamp control system
EP3624086A1 (fr) 2007-01-25 2020-03-18 Magna Electronics Inc. Système de détection de radar pour véhicule
ITPR20070006A1 (it) * 2007-02-08 2008-08-09 Techimp S P A Procedimento per elaborare dati relativi a un'attivita di scariche elettriche parziali
US7914187B2 (en) 2007-07-12 2011-03-29 Magna Electronics Inc. Automatic lighting system with adaptive alignment function
US8017898B2 (en) * 2007-08-17 2011-09-13 Magna Electronics Inc. Vehicular imaging system in an automatic headlamp control system
WO2009036176A1 (fr) 2007-09-11 2009-03-19 Magna Electronics Système d'imagerie pour véhicule
US8446470B2 (en) 2007-10-04 2013-05-21 Magna Electronics, Inc. Combined RGB and IR imaging sensor
US8154418B2 (en) 2008-03-31 2012-04-10 Magna Mirrors Of America, Inc. Interior rearview mirror system
US20100020170A1 (en) * 2008-07-24 2010-01-28 Higgins-Luthman Michael J Vehicle Imaging System
WO2010099416A1 (fr) 2009-02-27 2010-09-02 Magna Electronics Système d'alerte pour véhicule
NZ595986A (en) 2009-04-24 2014-04-30 Iceutica Pty Ltd A novel formulation of indomethacin
WO2011014497A1 (fr) 2009-07-27 2011-02-03 Magna Electronics Inc. Caméra de véhicule avec microcontrôleur embarqué
WO2011014482A1 (fr) 2009-07-27 2011-02-03 Magna Electronics Inc. Système d'aide au stationnement
WO2011028686A1 (fr) 2009-09-01 2011-03-10 Magna Mirrors Of America, Inc. Système d'affichage et d'imagerie pour véhicule
US8890955B2 (en) 2010-02-10 2014-11-18 Magna Mirrors Of America, Inc. Adaptable wireless vehicle vision system based on wireless communication error
US9117123B2 (en) 2010-07-05 2015-08-25 Magna Electronics Inc. Vehicular rear view camera display system with lifecheck function
US9900522B2 (en) 2010-12-01 2018-02-20 Magna Electronics Inc. System and method of establishing a multi-camera image using pixel remapping
US9264672B2 (en) 2010-12-22 2016-02-16 Magna Mirrors Of America, Inc. Vision display system for vehicle
WO2012103193A1 (fr) 2011-01-26 2012-08-02 Magna Electronics Inc. Système de vision arrière à détection d'angle de la remorque
WO2013116460A1 (fr) 2012-01-31 2013-08-08 Alphamicron Incorporated Dispositif optique à intensité réglable électroniquement
US9446713B2 (en) 2012-09-26 2016-09-20 Magna Electronics Inc. Trailer angle detection system
US9558409B2 (en) 2012-09-26 2017-01-31 Magna Electronics Inc. Vehicle vision system with trailer angle detection
DE102013203531B3 (de) * 2013-03-01 2014-05-22 Magna Mirrors Holding Gmbh Rückspiegelanordnung für Kraftfahrzeuge
CN103434452A (zh) * 2013-09-09 2013-12-11 南京华日液晶显示技术有限公司 利用染料液晶光阀制作汽车自动防眩目后视镜及制作方法
US10160382B2 (en) 2014-02-04 2018-12-25 Magna Electronics Inc. Trailer backup assist system
US9526734B2 (en) 2014-06-09 2016-12-27 Iceutica Pty Ltd. Formulation of meloxicam
CN104943614B (zh) * 2015-07-17 2017-03-01 京东方科技集团股份有限公司 后视镜
US10875403B2 (en) 2015-10-27 2020-12-29 Magna Electronics Inc. Vehicle vision system with enhanced night vision
US10132971B2 (en) 2016-03-04 2018-11-20 Magna Electronics Inc. Vehicle camera with multiple spectral filters

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3600060A (en) * 1968-02-23 1971-08-17 Ncr Co Display device containing minute droplets of cholesteric liquid crystals in a substantially continuous polymeric matrix
US3614210A (en) * 1969-11-06 1971-10-19 Rca Corp Liquid crystal day/night mirror
US4005928A (en) * 1971-06-01 1977-02-01 Texas Instruments Incorporated Nematic liquid crystal displays for low voltage direct current operation
US3837729A (en) * 1973-05-14 1974-09-24 Hoffmann La Roche Liquid crystal display
JPS556233B2 (fr) * 1974-08-07 1980-02-14

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0144053A2 (fr) * 1983-11-29 1985-06-12 Nippondenso Co., Ltd. Réflecteur du type anti-éblouissement
EP0144053A3 (en) * 1983-11-29 1987-08-26 Nippondenso Co., Ltd. Glare-shielding type reflector
EP0168497A1 (fr) * 1983-12-29 1986-01-22 Nippondenso Co., Ltd. Miroir anti-eblouissant
EP0168497A4 (fr) * 1983-12-29 1986-06-05 Nippon Denso Co Miroir anti-eblouissant.
US4721364A (en) * 1983-12-29 1988-01-26 Nippondenso Co., Ltd. Dazzle-free mirror with photocell in a non-dazzle-free portion
FR2702719A1 (fr) * 1993-03-19 1994-09-23 Dynaprog Sarl Rétroviseur anti-éblouissant à filtre électro-optique.

Also Published As

Publication number Publication date
ES466289A1 (es) 1978-10-01
ATA55578A (de) 1979-07-15
GB1554133A (en) 1979-10-17
AR220118A1 (es) 1980-10-15
BE863155A (fr) 1978-05-16
CH619790A5 (en) 1980-10-15
AT355436B (de) 1980-03-10
FR2378295B1 (fr) 1982-10-29
IT1082518B (it) 1985-05-21
US4200361A (en) 1980-04-29
SE7800742L (sv) 1978-07-26

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