WO1989009428A1 - Arrangement for a transparent covering element with an electro-chromatic layer - Google Patents

Arrangement for a transparent covering element with an electro-chromatic layer Download PDF

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Publication number
WO1989009428A1
WO1989009428A1 PCT/SE1989/000127 SE8900127W WO8909428A1 WO 1989009428 A1 WO1989009428 A1 WO 1989009428A1 SE 8900127 W SE8900127 W SE 8900127W WO 8909428 A1 WO8909428 A1 WO 8909428A1
Authority
WO
WIPO (PCT)
Prior art keywords
layer
electro
covering element
photo
chromatic
Prior art date
Application number
PCT/SE1989/000127
Other languages
English (en)
French (fr)
Inventor
Bertil Ilhage
Original Assignee
Saab Automobile Aktiebolag
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 Saab Automobile Aktiebolag filed Critical Saab Automobile Aktiebolag
Priority to DE68915440T priority Critical patent/DE68915440T2/de
Priority to EP89904296A priority patent/EP0408632B1/en
Publication of WO1989009428A1 publication Critical patent/WO1989009428A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10009—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets
    • B32B17/10036—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets comprising two outer glass sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10165—Functional features of the laminated safety glass or glazing
    • B32B17/10174—Coatings of a metallic or dielectric material on a constituent layer of glass or polymer
    • 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 
    • G02F1/15—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 an electrochromic effect
    • G02F1/153—Constructional details
    • G02F1/1533—Constructional details structural features not otherwise provided for
    • 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 
    • G02F1/15—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 an electrochromic effect
    • G02F1/163—Operation of electrochromic cells, e.g. electrodeposition cells; Circuit arrangements therefor

Definitions

  • the present invention relates to an arrangement for a covering element made from an at least partially transparent base material, which comprises an integrated electro-chromatic layer for electrical control of the light transmission through the covering element.
  • the electro-chromatic layer usually comprises two electrically conductive layers, which surround on both sides an ionically conductive layer.
  • the electrical voltage necessary for the control is usually obtained from a per se conventional voltage source.
  • a battery can also be used as a voltage source.
  • a number of photocells are arranged, which convert the light incident on them into electrical power in order to charge a battery.
  • the electro-chromatic layer is arranged outside the photocells, it is possible to control the light incident on the photocells and thus control the electical power emitted from the photocells. This is used in order to prevent overloading of the battery which is connected to the photocells.
  • the object of the present invention is to overcome this disadvantage of known solutions.
  • the invention thus relates to an arrangement which permits the sun shining into a vehicle to be reduced by means of an electro- chromatic layer in one or more of the covering elements of the vehicle, even when the vehicle is parked for a long time, without the risk of the normal battery of the vehicle being discharged.
  • the covering element outside the electro-chromatic layer comprising an integrated photo-electric layer, which converts the light incident on the photo-electric layer into electrical power, and by the photo-electric layer being electrically connected to the electro-chromatic layer and supplying the same with electrical power in proportion to the light which is incident on the photo-electric layer, by means of which the transmission through the covering element is controlled automatically depending upon the incident light.
  • the arrangement according to the invention permits the electrical power which is required for control of the electro-chromatic layer to be supplied from a separate power source.
  • the electrical power, which is supplied from the photo-electric layer is proportional to the incident light, which means that the power supply is greatest when the demand is greatest. In this manner, automatic adaptation of power supply and demand is achieved.
  • the integrated construction of an electro-chromatic layer together with a photo-electric layer in the covering element means that a compact and simple construction is obtained.
  • Figure 1 shows a cross section of a covering element according to the invention and a basic wiring diagram showing how different layers in the covering element are connected to one another.
  • the attached Figure 1 shows a cross section of a covering element for a vehicle, for example a passenger car with a closed body.
  • the covering element is constituted by a sun-roof 1, which is arranged in the roof of the vehicle and which can be opened in order to ventilate the interior space contained within the vehicle.
  • the sun-roof 1 is designed with a frame, in which mechanical elements are fixed for fixing and manoeuvring of the opening and closing of the sun-roof. This frame and the mechanical elements associated with it are designed entirely according to conventional technology and are thus not described further.
  • the attached Figure 1 shows a cross section of a part of the sun-roof 1.
  • the lowest part of the sun-roof 1 which corresponds to that part of the same which lies innermost towards the interior space, is made of glass 2.
  • the sun-roof 1 comprises an integrated electro-chromatic layer 3-7,
  • a layer of a transparent conductor 3 is arranged, which consists of indium tin oxide (ITO).
  • ITO indium tin oxide
  • an electro-chromatic electrode 6 made of tungsten oxide W03 and, at the top, a transparent conductor 7 made of indium tin oxide ITO.
  • the photo-electric layer 9-11 also consists of a number of different film layers.
  • the photo-electric layer 9-1 1 consists of two film layers of a transparent conductor 9, 1 1 made of indium tin oxide ITO, - ⁇ 0 between which a thin film layer of an ionic conductor 10 made of silicon material is arranged.
  • ITO indium tin oxide
  • ⁇ 0 thin film layer of an ionic conductor 10 made of silicon material
  • the transparent conductors 3, , 9, 11 in both layers are connected to an electrical control unit 13.
  • Also connected to the control unit 13 is an electrical sensor 15 which senses the temperature in the interior space of the vehicle and transmits a signal, which corresponds to this, to the control unit 13.
  • this sensor 15 can be varied to a large extent and can, for example, be combined with an already existing sensor which forms part of the ventilation system of the vehicle. It is also possible to design the sensor 15 as a separate sensor, which is built into the frame, which surrounds the sun-roof 1 , or close to it in the roof of the vehicle.
  • the control unit 13 is designed to form the link between the respective conductors 3, 7 and 9, 11 of the two layers 3-7 and 9-11 respectively under certain normal operating conditions. Under these conditions, the sensor 15 has no effect in any way. In a simplified form of the invention, therefore, the control unit 13 can be replaced with a connecting wire.
  • the photo-electric layer 9-11 there takes place in the ionically conductive layer 10 a flow of ions, which sets up a voltage between the two conductors 9, 11 , which voltage is proportional to the incident light 16.
  • the control unit 13 transfers this voltage to the electro-chromatic layer 3-7, that is to say the voltage is applied via the transparent conductors 3, 7 between the electro-chromatic electrode 6 and the counter-electrode 4.
  • the result of this is that the ionic conductor 5, which lies between them, changes, in proportion to the voltage which is applied, its transmission capacity for light passing through. The transmission is in this connection reduced in proportion to an increase in the voltage.
  • the temperature sensor 15 which is arranged in the interior space, is used under certain conditions to modify the described functioning.
  • the control unit is designed so as to control the connection between the conductors 3, 7, 9, 11 of the two layers 3-7, 9-11, depending upon the parameter value representing the variable quantity, the interior temperature.
  • the temperature sensor 15 is in this connection used, in the event of low interior temperatures, to reduce the voltage which is transferred via the control unit 13 to the electro-chromatic layer 3-7. In the wintertime, for example, when the interior temperature can assume a low value during parking, there is no need to exclude the sunlight.
  • a sensor 14 which senses another variable quantity in the interior space, for example the light incident on the interior space, can also be connected to the control unit 13.
  • the control unit 13 can be connected to a manually operable control device, by means of which the transmission through the sun-roof 1 can be manually controlled.
  • the control unit 13 can also be connected to another voltage source (not shown) so as to render control possible also, in a manner known per se, when the the power supplied from the photo-electric layer 9-11 is too low.
  • the other voltage source should be designed to supply power principally when the vehicle is in operation.
  • the example described relates to a sun-roof 1, but the invention can advantageously be applied to other covering elements within vehicle technology such as windscreens, rear windows, side windows or complete roofs of transparent material.

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal (AREA)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
  • Laminated Bodies (AREA)
PCT/SE1989/000127 1988-03-30 1989-03-13 Arrangement for a transparent covering element with an electro-chromatic layer WO1989009428A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE68915440T DE68915440T2 (de) 1988-03-30 1989-03-13 Anordnung für ein durchsichtiges bedeckungselement mit einer elektrochromatischen schicht.
EP89904296A EP0408632B1 (en) 1988-03-30 1989-03-13 Arrangement for a transparent covering element with an electro-chromatic layer

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8801173A SE463053B (sv) 1988-03-30 1988-03-30 Arrangemang vid ett taeckelement av ett aatminstone delvis transparent basmaterial
SE8801173-9 1988-03-30

Publications (1)

Publication Number Publication Date
WO1989009428A1 true WO1989009428A1 (en) 1989-10-05

Family

ID=20371860

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1989/000127 WO1989009428A1 (en) 1988-03-30 1989-03-13 Arrangement for a transparent covering element with an electro-chromatic layer

Country Status (6)

Country Link
US (1) US5105303A (sv)
EP (1) EP0408632B1 (sv)
JP (1) JPH03505488A (sv)
DE (1) DE68915440T2 (sv)
SE (1) SE463053B (sv)
WO (1) WO1989009428A1 (sv)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5321544A (en) * 1991-09-04 1994-06-14 Sun Active Glass Electrochromics, Inc. Electrochromic structures and methods
WO1994015247A1 (en) * 1992-12-24 1994-07-07 Sun Active Glass Electrochromics, Inc. Electrochromic devices
AU671339B2 (en) * 1992-11-06 1996-08-22 Midwest Research Institute Stand-alone photovoltaic (PV) powered electrochromic window
US5724177A (en) * 1991-09-04 1998-03-03 Sun Active Glass Electrochromics, Inc. Electrochromic devices and methods
WO1999005566A1 (en) * 1997-07-22 1999-02-04 Sustainable Technologies Australia Limited Electrophotochromic smart windows and methods
US10955719B2 (en) 2017-02-10 2021-03-23 Gentex Corporation Transparent photovoltaic coating for an electro-chromic device

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5473340A (en) * 1990-09-27 1995-12-05 The United States Of America As Represented By The Secretary Of The Navy Apparatus for displaying a multi-color pattern
US8084265B2 (en) * 2001-05-05 2011-12-27 Alliance for Sustianable Energy, LLC Method and Pd/V2 O5 device for H2 detection
US6859297B2 (en) * 2001-08-07 2005-02-22 Midwest Research Institute Electrochromic counter electrode
DE20204263U1 (de) * 2002-03-17 2003-07-31 Doeppner Kunststoffenster Kg Gebäudedachelement
US6556337B1 (en) * 2002-08-26 2003-04-29 Michael D. Wright Vehicle license plate cover
JP2006523171A (ja) 2003-03-07 2006-10-12 デプナー バウエレメンテ ゲーエムベーハー ウント コー カーゲー 透明要素、特に複合ガラス要素
FR2899855B1 (fr) * 2006-04-12 2008-07-11 Renault Sas Procede et dispositif de gestion de l'alimentation electrique d'un panneau de toit en verre electrochrome pour vehicule automobile
GB0701077D0 (en) * 2007-01-22 2007-02-28 Tse Ho K Smart glass
US9782949B2 (en) 2008-05-30 2017-10-10 Corning Incorporated Glass laminated articles and layered articles
US8200390B2 (en) * 2009-07-30 2012-06-12 Control Solutions LLC Securable cover for vehicle lights
US8432600B2 (en) * 2009-07-30 2013-04-30 Control Solutions LLC Light blocking apparatus for vehicle mirror assembly
US8248680B2 (en) * 2009-07-31 2012-08-21 Control Solutions LLC Electrically activatable light blocking cover for vehicle mirrors
US8256940B2 (en) * 2009-09-16 2012-09-04 Control Solutions LLC Securable cover with electrically activatable light inhibiting lens for vehicle lights
US20110135386A1 (en) * 2009-12-08 2011-06-09 Amanjit Singh Sahota Apparatus for indicating the formation of ice on a road
US8736942B2 (en) 2010-03-12 2014-05-27 Battelle Memorial Institute Electrochromic device capable of controlling visible and infrared radiations
DE102010003745A1 (de) * 2010-04-08 2011-10-13 GFi Gesellschaft für technische Ingenieurleistungen mbH Solardach für ein Kraftfahrzeug und Kraftfahrzeug damit
CN103407350A (zh) * 2013-07-31 2013-11-27 吴江市同心电子科技有限公司 一种可变色的挡风玻璃
CN106405881B (zh) * 2016-08-31 2019-11-19 京东方科技集团股份有限公司 一种光学组件及其制作方法、光学器件

Citations (1)

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Publication number Priority date Publication date Assignee Title
DE3614547A1 (de) * 1985-05-01 1986-11-20 Kabushiki Kaisha Toyota Chuo Kenkyusho, Nagakute, Aichi Elektrochromes element

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Publication number Priority date Publication date Assignee Title
DE2735195C2 (de) * 1977-08-04 1982-05-06 Siemens AG, 1000 Berlin und 8000 München Blendfreier Rückspiegel
US4599614A (en) * 1983-09-13 1986-07-08 Sumx Corporation Photoelectrochromic display
JPH0695187B2 (ja) * 1985-05-01 1994-11-24 豊田合成株式会社 エレクトロクロミック素子
JPH0695188B2 (ja) * 1986-03-10 1994-11-24 豊田合成株式会社 エレクトロクロミック素子
US4749261A (en) * 1986-01-17 1988-06-07 Taliq Corporation Shatter-proof liquid crystal panel with infrared filtering properties
US5007718A (en) * 1987-04-02 1991-04-16 Kabushiki Kaisha Toyota Chuo Kenkyusho Electrochromic elements and methods of manufacturing and driving the same
JPH01115725U (sv) * 1988-01-29 1989-08-03

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3614547A1 (de) * 1985-05-01 1986-11-20 Kabushiki Kaisha Toyota Chuo Kenkyusho, Nagakute, Aichi Elektrochromes element

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5321544A (en) * 1991-09-04 1994-06-14 Sun Active Glass Electrochromics, Inc. Electrochromic structures and methods
US5724177A (en) * 1991-09-04 1998-03-03 Sun Active Glass Electrochromics, Inc. Electrochromic devices and methods
US5757537A (en) * 1991-09-04 1998-05-26 Sun Active Glass Electrochromics, Inc. Electrochromic devices and methods
AU671339B2 (en) * 1992-11-06 1996-08-22 Midwest Research Institute Stand-alone photovoltaic (PV) powered electrochromic window
WO1994015247A1 (en) * 1992-12-24 1994-07-07 Sun Active Glass Electrochromics, Inc. Electrochromic devices
WO1999005566A1 (en) * 1997-07-22 1999-02-04 Sustainable Technologies Australia Limited Electrophotochromic smart windows and methods
US6297900B1 (en) 1997-07-22 2001-10-02 Sustainable Technologies Australia Limited Electrophotochromic smart windows and methods
US10955719B2 (en) 2017-02-10 2021-03-23 Gentex Corporation Transparent photovoltaic coating for an electro-chromic device

Also Published As

Publication number Publication date
US5105303A (en) 1992-04-14
JPH03505488A (ja) 1991-11-28
EP0408632B1 (en) 1994-05-18
DE68915440T2 (de) 1994-11-17
SE8801173D0 (sv) 1988-03-30
SE463053B (sv) 1990-10-01
SE8801173L (sv) 1989-10-01
DE68915440D1 (de) 1994-06-23
EP0408632A1 (en) 1991-01-23

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