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WO2008131843A1 - Protection contre l'éblouissement des phares pour automobile - Google Patents

Protection contre l'éblouissement des phares pour automobile Download PDF

Info

Publication number
WO2008131843A1
WO2008131843A1 PCT/EP2008/002734 EP2008002734W WO2008131843A1 WO 2008131843 A1 WO2008131843 A1 WO 2008131843A1 EP 2008002734 W EP2008002734 W EP 2008002734W WO 2008131843 A1 WO2008131843 A1 WO 2008131843A1
Authority
WO
WIPO (PCT)
Prior art keywords
layer
motor vehicle
polarization
light
transparent support
Prior art date
Application number
PCT/EP2008/002734
Other languages
German (de)
English (en)
Inventor
Bernhard Sepeur-Zeitz
Helmut Walter
Simone Wilsdorf
Original Assignee
Volkswagen Aktiengesellschaft
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 Volkswagen Aktiengesellschaft filed Critical Volkswagen Aktiengesellschaft
Publication of WO2008131843A1 publication Critical patent/WO2008131843A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J3/00—Antiglare equipment associated with windows or windscreens; Sun visors for vehicles
    • B60J3/04—Antiglare equipment associated with windows or windscreens; Sun visors for vehicles adjustable in transparency
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J3/00—Antiglare equipment associated with windows or windscreens; Sun visors for vehicles
    • B60J3/06—Antiglare equipment associated with windows or windscreens; Sun visors for vehicles using polarising effect

Definitions

  • the invention relates to a motor vehicle having a window pane, in particular a windshield or a driver or passenger side window, for covering an interior of the motor vehicle.
  • DE 102 53 507 A1 discloses a method for the automatic control or control of a motor vehicle associated sun protection device, wherein the sun protection device in dependence of a current position of the sun and current route data and information, such as the current orientation, the route and / or the position of Motor vehicle relative to the sun, adaptively controlled or adaptively controlled.
  • the position of the sun in particular the angle of inclination or the height of the sun and the direction or direction of the sun, are determined from astronomical data.
  • the orientation or the travel route or the position of the motor vehicle relative to the sun is calculated by means of a video image evaluation.
  • DE 100 57 795 A1 discloses a method for locally variable darkening of vehicle glazings or a surface area of a pane surface, whereby an automatic change of the darkening of the vehicle glazings takes place in accordance with a predefinable darkening strategy.
  • the darkening takes place depending on the direction in which a disturbing light source is located.
  • a seat occupancy and the seat settings of an electrically adjustable seat are detected, the darkening of the vehicle glazing is done depending on the seat occupancy and the seat settings.
  • the direction is determined by means of a navigation system, from which the solar radiation takes place.
  • DE 198 14 094 A1 discloses a device and a method for darkening a transparent pane as protection against sources of interference from one side of the pane, such as disturbing view, disturbing light source or disturbing heat, and / or as an information display, the device locally selectively electrically controlled Has darkening elements to the disc in a passage region of the source of interference selectively to darken the lens locally through the disk to form an anti-glare or anti-glare screen, or to provide a gradual blanking of the disk to form a sight or heat shield, or to darken the disk locally to selectively display information to form an information display disk.
  • DE 198 24 084 A1 discloses a glare protection device for a motor vehicle with a filter screen which can be darkened.
  • a control unit is connected to sensors for detecting a glare object and to a camera for detecting the eye position of a motor vehicle occupant.
  • the filter disk has a matrix-like design, wherein individual matrix elements can be darkened so that a darkened region can be generated without delay on a filter disk.
  • the darkened area follows the movement of the dazzling object and adapts to the dazzling object in its size and in its darkening behavior.
  • DE 10 2005 007 427 A1 discloses a motor vehicle having a window pane, in particular a windshield, for covering an interior of the motor vehicle, wherein a transparency of at least one segment of the window pane is adjustable, and wherein the motor vehicle has a glare sensor for measuring an eyelid position and / or a Pupillenteur of an occupant of the motor vehicle and a controller for automatically adjusting the transparency of the segment of the window pane in response to an output signal of the blend sensor has.
  • Window panes with adjustable transparency are e.g. from EP 1 566 300 A2, US Pat. No. 6,674,419, US Pat. No. 6,597,412, US Pat. No. 6,524,246, US Pat. No. 6,606,185, US Pat. No. 6,301,040 and EP 0 608 203 B1.
  • a motor vehicle having a window pane, in particular a windshield or a driver or passenger side window, for covering an interior of the motor vehicle, wherein the window pane at least partially a first polarization layer for polarizing incident through the window in the interior of light a first polarization direction, wherein the window pane is associated with a transparent carrier (which can be arranged by an occupant) in front of the window pane, wherein the transparent pane is a transparent carrier Carrier at least in part comprises a second polarization layer for polarizing light passing through the transparent support in a second polarization direction, and wherein the windowpane and / or the transparent support at least partially disposed between the first polarization layer and the second polarization layer nematic layer for rotating the Polarization direction of light in response to a switching state comprises.
  • a window pane can also comprise or be a roof window or a glass roof.
  • the first polarization direction is different in particular from the second polarization direction.
  • the first polarization direction is advantageously orthogonal to the second polarization direction.
  • the polarization of light can in particular - depending on their switching state - be rotated.
  • the polarization of light polarized in the first polarization direction can advantageously be rotated in the second polarization direction.
  • the transparent support is a roller blind or part of a roller blind and / or a folding sun visor or part of a folding sun visor.
  • the transparent support is a spectacle lens.
  • the first polarization layer, the nematic layer and the second polarization layer form an LCD layer.
  • Examples of possible embodiments of the LCD layer can be found on the Internet page de.wikipedia.org/wiki/Fiber%Cry screen.
  • the first form is a further advantageous embodiment of the invention.
  • the window pane with the first polarization layer and the nematic layer in conjunction with the transparent carrier with the second polarization layer in a shading state of the nematic layer has a light transmission of, at least almost, 0%.
  • the window pane with the first polarization layer and the nematic layer has a light transmission of at least 70%, in particular of at least 75%.
  • the first polarization layer and / or the second polarization layer can also be configured as a partially polarizing layer.
  • a "weaker" polarizer and / or a segmentation of the polarization layer can be provided.With a segmentation of the polarization layer, polarizing and non-polarizing regions can alternate, the segments advantageously being so small that they can no longer be resolved by the human eye.
  • Motor vehicle in the sense of the invention is in particular a land vehicle which can be used individually in road traffic.
  • Motor vehicles according to the invention are not limited in particular to land vehicles with internal combustion engine.
  • Fig. 2 shows a cross section through an embodiment of a portion of a windshield of a motor vehicle
  • Fig. 3 shows a further cross section through the part of a windshield shown in Fig. 2.
  • Fig. 1 shows an embodiment of a motor vehicle 1.
  • reference numeral 2 denotes the windshield of the motor vehicle 1 and reference numeral 3, the upper part of the windshield 2.
  • Reference numeral 4 denotes a side window.
  • the windshield 2 comprises, at least in part, a polarization layer 11 for polarizing incident through the windshield 2 in the interior of the motor vehicle 1 light in a first polarization direction.
  • the windscreen 2 comprises a nematic layer 12 arranged on the polarization layer 11 for rotating the polarization direction of light as a function of its switching state.
  • the polarization layer 11 and the nematic layer 12 may be e.g. Be part of an LCD film.
  • the windshield 2 with the polarization layer 11 and the nematic layer 12 has a light transmission P1 of at least 70%, advantageously of at least 75%.
  • the motor vehicle 1 comprises a windscreen 2 associated with - designed as a roller blind or foldable sun visor - transparent carrier 5, which is opposite to the first Polarization layer 11 can be arranged.
  • a windscreen 2 associated with - designed as a roller blind or foldable sun visor - transparent carrier 5, which is opposite to the first Polarization layer 11 can be arranged.
  • the polarization of light polarized in the first polarization direction can be rotated in the second polarization direction.
  • this switching state it is also possible to see through the windshield 2 in the region of the transparent carrier 5.
  • the windshield 2 having the polarizing layer 11 and the nematic layer 12 in conjunction with the transparent support 5 with the second polarizing layer 15 in the shading state of the nematic layer 12 has a light transmission P2 of, at least nearly, 0%.
  • the polarizing film is separated from an LCD composite and applied as a polarization layer 15 to the transparent carrier 5. The remaining layers of the LCD composite are then applied to the windscreen 2.
  • the nematic layer 12 is part of the transparent carrier 5.
  • a spectacle lens 6 with a polarization layer 16 corresponding to the polarization layer 15 can also be used.
  • the polarization layer 11 and the nematic layer 12 are advantageously arranged in the upper part 3 of the windshield 2.
  • the side window 4 may be configured according to the windshield 2.
  • the nematic layer 12 is segmented in an analogous manner as the layers disclosed in DE 10 2005 007 427 A1, with individual segments being individually controllable. In addition, it can be provided that the nematic layer 12 is driven with one or more of the types of control described with reference to FIG. 6 of DE 10 2005 007 427 A1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polarising Elements (AREA)

Abstract

L'invention concerne une automobile (1) comportant une vitre (2, 4), notamment un pare-brise (2) ou une vitre latérale (4) côté conducteur ou passager avant, pour recouvrir l'habitacle d'une automobile (1). La vitre (2) comprend au moins en partie une première couche de polarisation (11) pour polariser la lumière entrant dans l'habitacle en passant par la vitre, dans un premier sens de polarisation. Un support (5, 6) transparent pouvant être monté devant la vitre (2) côté habitacle est associé à la vitre (2). Le support (5, 6) transparent comprend au moins en partie une seconde couche de polarisation (15, 16) pour polariser la lumière passant par le support (5, 6) transparent dans un second sens de polarisation et la vitre et/ou le support (5, 6) transparent comprend/comprennent au moins en partie une couche nématique (12) disposée entre la première couche de polarisation (11) et la seconde couche de polarisation (15, 16), pour faire tourner le sens de polarisation de la lumière en fonction d'un état de commutation.
PCT/EP2008/002734 2007-04-26 2008-04-07 Protection contre l'éblouissement des phares pour automobile WO2008131843A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007019655.7 2007-04-26
DE102007019655A DE102007019655A1 (de) 2007-04-26 2007-04-26 Blendschutz für ein Kraftfahrzeug

Publications (1)

Publication Number Publication Date
WO2008131843A1 true WO2008131843A1 (fr) 2008-11-06

Family

ID=39472838

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/002734 WO2008131843A1 (fr) 2007-04-26 2008-04-07 Protection contre l'éblouissement des phares pour automobile

Country Status (2)

Country Link
DE (1) DE102007019655A1 (fr)
WO (1) WO2008131843A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010053036A1 (de) 2009-12-03 2011-06-09 GM Global Technology Operations LLC, ( n. d. Ges. d. Staates Delaware ), Detroit Kamera- und navigationsbasierte Fensterverdunklung für ein Kraftfahrzeug

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012210503A1 (de) * 2012-06-21 2013-12-24 Bayerische Motoren Werke Aktiengesellschaft Vereinigungsoptik eines Headup-Displays und Headup-Display

Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5772123A (en) * 1980-10-24 1982-05-06 Hitachi Ltd Liquid crystal display device
EP0238164A1 (fr) * 1986-01-17 1987-09-23 Raychem Corporation Panneau à cristaux liquides
DE4106019A1 (de) * 1990-03-02 1991-10-02 Neta Holland Lichtdurchlaessiges fenster und dessen elektro-optische steuerung
DE19814094A1 (de) 1998-03-30 1999-10-14 Rainer Ecker Vorrichtung und Verfahren zur Abdunklung einer transparenten Scheibe
DE19824084A1 (de) 1998-05-29 1999-12-16 Audi Ag Blendschutzeinrichtung und Blendschutzverfahren für ein Fahrzeug
DE10057795A1 (de) 2000-11-22 2002-05-23 Daimler Chrysler Ag Verfahren zur Abdunklung von Fahrzeugverglasungen
US6522446B2 (en) 2001-04-25 2003-02-18 Research Frontiers Incorporated Anisometrically shaped metal particles, liquid suspensions and films thereof and light valves comprising same
US6597412B1 (en) 1999-04-28 2003-07-22 Tektronix, Inc. Liquid crystal display device employing fiber spacers
US6606185B2 (en) 2001-06-12 2003-08-12 Research Frontiers Incorporated SPD films and light valves comprising liquid suspensions of heat-reflective particles of mixed metal oxides and methods of making such particles
US6674419B2 (en) 2000-11-02 2004-01-06 Tektronix, Inc. AC palc display device with floating electrode
DE10253507A1 (de) 2002-11-16 2004-05-27 Robert Bosch Gmbh Verfahren und System zum automatischen Ansteuern einer Sonnenschutzeinrichtung und/oder einer Klimatisierungseinrichtung
EP1566300A2 (fr) 2004-02-23 2005-08-24 Volkswagen AG Panneau vitré à transparence réglable pour véhicule automobile
DE102005007427A1 (de) 2005-02-18 2006-08-31 Volkswagen Ag Elektrische Sonnenblende für ein Kraftfahrzeug
WO2007062581A1 (fr) * 2005-11-30 2007-06-07 Limin Zhou Pare-soleil pour vehicules

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DE811653C (de) * 1950-01-06 1951-08-23 Electroacustic Gmbh Blendschutzeinrichtung zum Schutz gegen Sonne, Scheinwerfer oder andere natuerliche oder kuenstliche Lichtquellen, vorzugsweise fuer Fahrzeuge
DE1172973B (de) * 1959-04-20 1964-06-25 Dr Hermann Heimberger Blendschutzeinrichtung fuer Kraftfahrzeuge
DE1630565A1 (de) * 1967-02-02 1971-06-03 Albert Jaffreo Blendschutzvorrichtung
DE2854181A1 (de) * 1978-12-15 1980-06-26 Lepper Gmbh Masch App Blendschutzvorrichtung fuer kraftfahrzeuge
IT1261163B (it) 1993-01-22 1996-05-09 Siv Soc Italiana Vetro Vetro elettrocromico per auto ed edilizia.
DE4327095A1 (de) * 1993-08-12 1994-07-28 Daimler Benz Ag Vorrichtung zur Veränderung der Lichtdurchlässigkeit von Scheiben oder Folien, insbesondere von Fensterscheiben bei Kraftfahrzeugen
US6301040B1 (en) 2000-05-24 2001-10-09 Research Frontiers Incorporated SPD films having improved properties and light valves comprising same

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5772123A (en) * 1980-10-24 1982-05-06 Hitachi Ltd Liquid crystal display device
EP0238164A1 (fr) * 1986-01-17 1987-09-23 Raychem Corporation Panneau à cristaux liquides
DE4106019A1 (de) * 1990-03-02 1991-10-02 Neta Holland Lichtdurchlaessiges fenster und dessen elektro-optische steuerung
DE19814094A1 (de) 1998-03-30 1999-10-14 Rainer Ecker Vorrichtung und Verfahren zur Abdunklung einer transparenten Scheibe
DE19824084A1 (de) 1998-05-29 1999-12-16 Audi Ag Blendschutzeinrichtung und Blendschutzverfahren für ein Fahrzeug
US6597412B1 (en) 1999-04-28 2003-07-22 Tektronix, Inc. Liquid crystal display device employing fiber spacers
US6674419B2 (en) 2000-11-02 2004-01-06 Tektronix, Inc. AC palc display device with floating electrode
DE10057795A1 (de) 2000-11-22 2002-05-23 Daimler Chrysler Ag Verfahren zur Abdunklung von Fahrzeugverglasungen
US6522446B2 (en) 2001-04-25 2003-02-18 Research Frontiers Incorporated Anisometrically shaped metal particles, liquid suspensions and films thereof and light valves comprising same
US6606185B2 (en) 2001-06-12 2003-08-12 Research Frontiers Incorporated SPD films and light valves comprising liquid suspensions of heat-reflective particles of mixed metal oxides and methods of making such particles
DE10253507A1 (de) 2002-11-16 2004-05-27 Robert Bosch Gmbh Verfahren und System zum automatischen Ansteuern einer Sonnenschutzeinrichtung und/oder einer Klimatisierungseinrichtung
EP1566300A2 (fr) 2004-02-23 2005-08-24 Volkswagen AG Panneau vitré à transparence réglable pour véhicule automobile
DE102005007427A1 (de) 2005-02-18 2006-08-31 Volkswagen Ag Elektrische Sonnenblende für ein Kraftfahrzeug
WO2007062581A1 (fr) * 2005-11-30 2007-06-07 Limin Zhou Pare-soleil pour vehicules

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010053036A1 (de) 2009-12-03 2011-06-09 GM Global Technology Operations LLC, ( n. d. Ges. d. Staates Delaware ), Detroit Kamera- und navigationsbasierte Fensterverdunklung für ein Kraftfahrzeug

Also Published As

Publication number Publication date
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