DE8813608U1 - Device for darkening windows - Google Patents
Device for darkening windowsInfo
- Publication number
- DE8813608U1 DE8813608U1 DE8813608U DE8813608U DE8813608U1 DE 8813608 U1 DE8813608 U1 DE 8813608U1 DE 8813608 U DE8813608 U DE 8813608U DE 8813608 U DE8813608 U DE 8813608U DE 8813608 U1 DE8813608 U1 DE 8813608U1
- Authority
- DE
- Germany
- Prior art keywords
- darkening
- windows
- liquid crystals
- tin oxide
- glass
- 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.)
- Expired
Links
- 239000004973 liquid crystal related substance Substances 0.000 claims description 8
- 239000011521 glass Substances 0.000 claims description 5
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 claims description 4
- 229910001887 tin oxide Inorganic materials 0.000 claims description 4
- 230000000475 sunscreen effect Effects 0.000 claims 2
- 239000000516 sunscreening agent Substances 0.000 claims 2
- 239000000463 material Substances 0.000 claims 1
- 238000002834 transmittance Methods 0.000 claims 1
- 239000007788 liquid Substances 0.000 description 7
- 230000008018 melting Effects 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 206010052128 Glare Diseases 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 230000004313 glare Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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
- B32B17/10165—Functional features of the laminated safety glass or glazing
- B32B17/10431—Specific parts for the modulation of light incorporated into the laminated safety glass or glazing
- B32B17/10467—Variable transmission
- B32B17/10486—Variable transmission photochromic
-
- 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
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
- C03C17/42—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating of an organic material and at least one non-metal coating
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
- E06B3/67—Units comprising two or more parallel glass or like panes permanently secured together characterised by additional arrangements or devices for heat or sound insulation or for controlled passage of light
- E06B3/6715—Units comprising two or more parallel glass or like panes permanently secured together characterised by additional arrangements or devices for heat or sound insulation or for controlled passage of light specially adapted for increased thermal insulation or for controlled passage of light
- E06B3/6722—Units comprising two or more parallel glass or like panes permanently secured together characterised by additional arrangements or devices for heat or sound insulation or for controlled passage of light specially adapted for increased thermal insulation or for controlled passage of light with adjustable passage of light
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Liquid Crystal (AREA)
Description
- 1 Einrichtung zaun Abdunkeln von Scheiben- 1 facility fence darkening of windows
Die Neuerung betrifft eine Einrichtung zum Abdunkeln von Glasscheiben mit Hilfe von Flüssigkristallen. Der Zweck dieser Einrichtung besteht darin, Käume, Häuser, Fahrzeuge usw. bei Bedarf vor Sonneneinstrahlung bzw. vor ungewunschtem Einblick zu schützen.The innovation concerns a device for darkening glass panes using liquid crystals. The purpose of this device is to protect trees, houses, vehicles, etc. from sunlight or unwanted views when necessary.
Es sind verschiedene Arten bekannt um diesen Effekt zu erreichen. Z.B. Verspiegeln, tönen oder aufkleben von Folien. Diese Möglichkeiten sind sehr teuer oder vielfach nicht besonders wirkungsvoll. Außerdem sind diese Arten ständig aktiv, ganz gleich ob es wünschenswert ist oder nicht. Außerdem haben verspiegelte Scheiben den Nachteil, daß durch das reflektierte Licht gefährliche Blendgefahr besteht.There are various ways to achieve this effect. For example, mirroring, tinting or sticking on foil. These options are very expensive or often not particularly effective. In addition, these types are constantly active, regardless of whether it is desirable or not. In addition, mirrored windows have the disadvantage that the reflected light poses a dangerous risk of glare.
Es stellt sich somit die Aufgabe, eine Scheibe herzustellen, mit der eine gute Abdunkelung von Scheiben erreicht wird, die jeodch die vorgenannten Nachteile nicht aufweist.The task is therefore to produce a pane that achieves good darkening of panes, but which does not have the disadvantages mentioned above.
Dies wird mit Hilfe von Flüssigkristallen erreicht, wie es von Digitaluhren und LCD-Bildschirmen bekannt ist.This is achieved with the help of liquid crystals, as is known from digital watches and LCD screens.
Unter der Bezeichnung "Flüssigkristalle" sind derzeit mehrere tausend orparipche Stoffe bekannt, die in einem bestimmten Temperaturbereich flüssig sind.Several thousand organic substances that are liquid in a certain temperature range are currently known under the term "liquid crystals".
Sie bestehen aus langgestreckten Molekülen, die an einem Ende positiv, am anderen Ende negativ aufgeladen sind. Solche Flüssigkeiten haben zwei Schmelzpunkte. Im ersten, niedrigen Schmelzpunkt, wird der feste Stoff flüssig, bleibt aber trübe; beim aweiten Schmelzpunkt klärt sich die Flüssigkeit völlig auf. Zwisohen diesen beiden Schmelzpunkten sind in der Flüssigkeit Flüssigkristalle vorhanden. Sie einseinen Moleküle sind dabei mehr oder minder parallel zueinander ausgerichtet und können sich nur noch länge dieser Parallele bewegen.They consist of elongated molecules that are positively charged at one end and negatively charged at the other. Such liquids have two melting points. At the first, low melting point, the solid becomes liquid but remains cloudy; at the high melting point, the liquid becomes completely clear. Between these two melting points, liquid crystals are present in the liquid. The individual molecules are aligned more or less parallel to one another and can only move along this parallel.
Das elektrische Verhalten der Flüesigkristall-Moleküle kann man sich zu nutze dachen. Zwischen zwei Glasplatten, die innen mit einer elektrisch leitenden Zinnoacidschicht bedeckt sind, befinde* sich ein dünner Flüssigkeitsfilm« Die in ihm enthaltenen flüssigen Kristalle sind so ausgerichtet, dafi die Flüssigkeit durchsichtig ist. Wird an den Zinnoxidschichten Spannung angelegt, so richten sich die Moleküle entsprechend ihren elektrischen Eigenschaften nach den Polen aus. Dies gelingt Ihnen aber nur unvollständig, so daß sich überall Molekülklumpen bilden, die Licht verschlucken und die Schicht undurchsichtig machen.The electrical behavior of liquid crystal molecules can be put to good use. There is a thin liquid film between two glass plates that are covered on the inside with an electrically conductive tin oxide layer. The liquid crystals contained in it are aligned in such a way that the liquid is transparent. If voltage is applied to the tin oxide layers, the molecules align themselves towards the poles according to their electrical properties. However, they only manage to do this incompletely, so that clumps of molecules form everywhere, which absorb light and make the layer opaque.
Durch Veränderung der Spannung kann sogar in gewissen Grenzen der Grad der Abdunkelung verändert werden.By changing the voltage, the degree of darkening can even be changed within certain limits.
• ··
I «I «
Ist eine Durchsichtigkeit bzw. Lichteinfall erwünscht, so ist lediglich die elektrische Spannung auszuschalten.If transparency or light is desired, simply switch off the electrical voltage.
In Figur 1 ist eine Ausführung ausschnittswoise beispielhaft im Schnitt dargestellt.Figure 1 shows a detailed cross-sectional view of an example version.
«*&«**«* Ama Aitoi af«n A&vt TPl it &bgr; &agr; ·< »Ir a-4 4&idiagr; &agr;>&agr; «*&«**«* Ama Aitoi af«n A&vt TPl it &bgr;&agr;·< »Ir a-4 4&idiag;α>α
(geklebt oder andersartig versiegelt). Dies ist in Figur 1 nicht dargestellt(glued or otherwise sealed). This is not shown in Figure 1
Claims (3)
bestehend aus den Glasscheiben (2) und (5)
mit je einer dünnen Zinnoxidschicht (4) und (5) bedeckt und den dazwischenliegenden Flüssigkristallen (6) dadurch gekennzeichnet, daß mit Hilfe der Flüssigkristalle (6) und Anlegen
einer elektrischen Spannung an die Zinnoxidschichten (4) und (5) die Glasscheibe (1)
abdunkelbar ist» das heißt, die Liohtdurchlässigkeit der gesamten Einheit herabaetzbar ist.1. Device for darkening windows,
consisting of the glass panes (2) and (5)
covered with a thin tin oxide layer (4) and (5) and the liquid crystals (6) in between, characterized in that with the help of the liquid crystals (6) and application
an electrical voltage to the tin oxide layers (4) and (5) the glass pane (1)
can be darkened", that is, the light transmittance of the entire unit can be reduced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE8813608U DE8813608U1 (en) | 1988-10-29 | 1988-10-29 | Device for darkening windows |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE8813608U DE8813608U1 (en) | 1988-10-29 | 1988-10-29 | Device for darkening windows |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE8813608U1 true DE8813608U1 (en) | 1989-01-12 |
Family
ID=6829400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE8813608U Expired DE8813608U1 (en) | 1988-10-29 | 1988-10-29 | Device for darkening windows |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE8813608U1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0629547A1 (en) * | 1993-06-15 | 1994-12-21 | DaimlerChrysler Aerospace Airbus Gesellschaft mit beschränkter Haftung | Partition device |
| DE10101100A1 (en) * | 2001-01-12 | 2002-07-18 | Werner Sobeck Ingenieure Gmbh | Variable transmission glass panel arrangement has glass panel that can be shaded with continuously electrically switchable transmissive electrooptical element of liquid crystals |
| DE102008009776A1 (en) * | 2008-02-19 | 2009-10-22 | Schott Ag | Element i.e. disk, for use in e.g. clinic, has film operated in two states, and laminated glass elements including surface, where glass elements provide protection against ionizing radiation and ultra-violet radiation |
| US8187682B2 (en) | 2007-09-06 | 2012-05-29 | Schott Ag | Protective glass against ionizing radiation |
-
1988
- 1988-10-29 DE DE8813608U patent/DE8813608U1/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0629547A1 (en) * | 1993-06-15 | 1994-12-21 | DaimlerChrysler Aerospace Airbus Gesellschaft mit beschränkter Haftung | Partition device |
| DE10101100A1 (en) * | 2001-01-12 | 2002-07-18 | Werner Sobeck Ingenieure Gmbh | Variable transmission glass panel arrangement has glass panel that can be shaded with continuously electrically switchable transmissive electrooptical element of liquid crystals |
| US8187682B2 (en) | 2007-09-06 | 2012-05-29 | Schott Ag | Protective glass against ionizing radiation |
| DE102008009776A1 (en) * | 2008-02-19 | 2009-10-22 | Schott Ag | Element i.e. disk, for use in e.g. clinic, has film operated in two states, and laminated glass elements including surface, where glass elements provide protection against ionizing radiation and ultra-violet radiation |
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