EP0657613B1 - Window glazing - Google Patents
Window glazing Download PDFInfo
- Publication number
- EP0657613B1 EP0657613B1 EP94118447A EP94118447A EP0657613B1 EP 0657613 B1 EP0657613 B1 EP 0657613B1 EP 94118447 A EP94118447 A EP 94118447A EP 94118447 A EP94118447 A EP 94118447A EP 0657613 B1 EP0657613 B1 EP 0657613B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- window glazing
- layer
- radar
- pane
- glazing according
- 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 - Lifetime
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Classifications
-
- 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
- E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
- E06B5/10—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes
- E06B5/18—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes against harmful radiation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/14—Reflecting surfaces; Equivalent structures
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q17/00—Devices for absorbing waves radiated from an antenna; Combinations of such devices with active antenna elements or systems
Landscapes
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Joining Of Glass To Other Materials (AREA)
- Surface Treatment Of Glass (AREA)
Description
Die Erfindung betrifft eine Fensterverglasung, bestehend aus einer Doppelverglasung mit abgedichtetem Zwischenraum, bei der im Bereich der Außenscheibe eine lichtdurchlässige Schicht mit definiertem Oberflächenwiderstand angeordnet ist und bei der die Innenscheibe mit einer radarreflektierenden Schicht versehen ist.The invention relates to window glazing, consisting of double glazing with a sealed intermediate space, in which a translucent layer with a defined surface resistance is arranged in the region of the outer pane and in which the inner pane is provided with a radar-reflecting layer.
Aus der DE 40 08 660 C2 ist eine Bauweise für Fensterverglasungen bekannt geworden, die eine homogene radarabsorbierende Schicht an der Außenscheibe aufweist. Bei der Herstellung einer derartigen Verglasung ergibt sich jedoch das Problem, daß die aufgedampfte Metallschicht nur schwer mit der für den exakten Oberflächenwiderstandswert von etwa 452 Ω/□ notwendigen Präzision herstellbar sind. Weiterhin ist eilte Qualitätsprüfung der technischen Eigenschaften der Verglasung nur mit speziellen Prüfeinrichtungen möglich.From DE 40 08 660 C2, a design for window glazing has become known which has a homogeneous radar-absorbing layer on the outer pane. When producing such glazing, however, there is the problem that the evaporated metal layer can only be produced with difficulty with the precision required for the exact surface resistance value of approximately 452 Ω / □ . Furthermore, urgent quality testing of the technical properties of the glazing is only possible with special test equipment.
Das Patent P 42 27 032 beschreibt eine Fensterverglasung, bei der die im Bereich der Außenscheibe angeordnete Schicht aus parallel zueinander angeordneten Drähten besteht, die in einem bestimmten Winkel zur Polarisationsrichtung der einfallenden elektromagnetischen Strahlung angeordnet sind, um die Reflexions- und Absorptionseigenschaften der an der Außenscheibe befindlichen Schicht gegenüber der radarreflektierenden Schicht an der Innenscheibe abzustimmen. Dabei treten jedoch Probleme aufgrund des aufwendigen Herstellverfahrens für parallel angeordnete Drähte auf, wodurch als Folge davon die Herstellkosten hoch ausfallen. Außerdem wirken auch Drähte mit sehr kleinem Durchmesser beim Blick durch die Verglasung störend.The patent P 42 27 032 describes window glazing in which the layer arranged in the area of the outer pane consists of wires arranged parallel to one another, which are arranged at a certain angle to the direction of polarization of the incident electromagnetic radiation, in order to reflect and reflect the properties of the outer pane Coordinate existing layer with the radar reflecting layer on the inner pane. However, problems arise due to the complex manufacturing process for wires arranged in parallel, as a result of which the manufacturing costs are high. In addition, wires with a very small diameter are annoying when looking through the glazing.
Es ist deshalb Aufgabe der Erfindung, die Fensterverglasung gemäß P 42 27 032 dahingehend zu verbessern, daß die Herstellbarkeit vereinfacht wird, daß die Qualitätsprüfung mit einfachen meßtechnischen Geräten durchführbar ist, daß die optischen Eigenschaften der Verglasung verbessert werden und daß die Anpassung der Absorptionseigenschaften an die am Einbauort gegebenen Verhältnisse unter Berücksichtigung der üblichen Fertigungstoleranzen leicht möglich ist.It is therefore an object of the invention to improve the window glazing according to P 42 27 032 in such a way that the manufacturability is simplified, that the quality inspection can be carried out with simple measuring devices, that the optical properties of the glazing are improved and that the adaptation of the Absorption properties to the conditions at the installation site is easily possible taking into account the usual manufacturing tolerances.
Die Aufgabe wird erfindungsgemäß durch die im Anspruch 1 angegebenen Merkmale gelöst. Vorteilhafte Ausgestaltungen der erfindungsgemäßen Verglasung sind in den kennzeichnenden Teilen der Unteransprüche beschrieben.The object is achieved by the features specified in
Die besonderen Vorteile der erfindungsgemäßen Bauweise einer Verglasung liegen einmal in der vereinfachten Herstellbarkeit und konstanten Reproduzierbarkeit sowie in der einfachen Prüfbarkeit der Anordnung. Darüber hinaus ermöglicht diese Bauweise die Verwendung von marktgängigen metallischen Bedampfungen von Gläsern, die einen Oberflächenwiderstandswert aufweisen, der aufgrund der Art der Beschichtung eine nur geringe Streuung vom gewünschten Sollwert des Oberflächenwiderstandes aufweist. Damit läßt sich die erfindungsgemäße Verglasung mit vergleichsweise geringem Aufwand an die am Einbauort vorliegenden Gegebenheiten anpassen.The particular advantages of the glazing construction according to the invention lie in the simplified manufacture and constant reproducibility as well as the simple testability of the arrangement. In addition, this design enables the use of commercially available metallic vapor deposition of glasses which have a surface resistance value which, because of the type of coating, has only a slight scatter from the desired target value of the surface resistance. The glazing according to the invention can thus be adapted to the circumstances at the installation site with comparatively little effort.
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im folgenden näher erläutert.An embodiment of the invention is shown in the drawing and is explained in more detail below.
Die einzige Figur der Zeichnung zeigt einen Schnitt durch die Verglasung, die aus zwei voneinander getrennten Scheiben 2 und 7 besteht. Dazwischen befindet sich ein evakuierter oder gasgefüllter Zwischenraum 5. Auf der Außenscheibe 2 kann eine Beschichtung 1, beispielsweise zur Tönung der Verglasung, aufgebracht sein. Auf der Innenseite der Außenscheibe 2 sind streifenförmige, alternierend auftretende erste Teilflächen 3 und zweite Teilflächen 4 angeordnet. Die nicht dargestellten Längsachsen der ersten und zweiten Teilflächen 3, 4 verlaufen etwa senkrecht zur Polarisationsrichtung der einfallenden elektromagnetischen Strahlung R. In der Figur liegen die Längsachsen somit etwa lotrecht zur Zeichnungsebene.The only figure in the drawing shows a section through the glazing, which consists of two
Die ersten Teilflächen 3 werden durch Aufdampfen von Metallschichten, wie beispielsweise Silber oder Gold, aufgebracht. Die zweiten Teilflächen 4 werden im einfachsten Fall freigelassen. Ansonsten kann eine optisch wirksame Schicht, wie beispielsweise ein Sonnenschutz aus Metalloxiden, aufgedampft sein.The first
Bei einer Dimensionierung der Verglasung für eine Betriebsfrequenz von etwa 1 GHz ergeben sich folgende vorteilhafte Bemaßungen. Die Dicke der Außenscheibe 2 beträgt 6 bis 18 mm, die der Innenscheibe 7 etwa 4 bis 12 mm. Die Weite des Zwischenraumes 5 wird im Bereich 8 bis 30 mm gewählt.The dimensions of the glazing for an operating frequency of approximately 1 GHz result in the following advantageous dimensions. The thickness of the
Die Ausdehnung der ersten und zweiten Teilflächen 3, 4 senkrecht zur Polarisationsrichtung der elektromagnetischen Strahlung R erstreckt sich über die vorgegebene Ausdehnung der Verglasung. Die Breiten d1 der ersten Teilfläche 3 und d2 der zweiten Teilfläche 4 betragen etwa 30 bis 200 mm. Die Summe der Breiten d1 und d2 muß dabei stets kleiner als die mittlere Wellenlänge Ωo der Betriebsfrequenz sein, um eine antennenartige Anregung der Kanten der Teilflächen auszuschließen.The extent of the first and
Die Dimensionierung der Maße d1 und d2 sowie der Oberflächenwiderstand der ersten Teilfläche 3 beeinflussen wesentlich die Intensität der Reflexionsunterdrückung. Bei einem Oberflächenwiderstandswert der ersten Teilfläche 3 von etwa 10 bis 30 Ω/□ kann eine übliche aufgedampfte Wärmeschutzschicht verwendet werden, die eine optisch kaum wahrnehmbare Transmissionsdämpfung zeigt. Bei einem Breitenverhältnis von
Claims (6)
- Window glazing, comprising double-glazing with sealed intermediate space, having in the area of the outer pane a light-permeable layer with defined surface resistance, and in which the inner pane is provided with a radar-reflecting layer, characterised in that the layer in the area of the outer pane (2) is composed of alternately arranged striplike first radar-reflecting surface portions (3) which extend parallel to each other and second non-radar-reflecting surface portions (4) the longitudinal axes of which are aligned virtually vertically to incurring electro-magnetic radiation, and the proportion of electro-magnetic radiation reflected by the radar-reflecting layer and again passed through the light-permeable coating equals virtually the proportion of radiation reflected by the light-permeable layer.
- Window glazing according to Claim 1, characterised in that the first surface portions (3) are composed of a coated metal layer having a mean surface resistance in the region of between 5 and 400 Ω/□.
- Window glazing according to Claim 2, characterised in that the surface resistance of the first surface portion (3) lies in the region between 10 and 30 Ω/□.
- Window glazing according to one of Claims 1 to 3, characterised in that the width (d1) of the first surface portions (3) and the width (d2) of the second surface portions (4) are related to each other in such a manner that 2< d1/d2 < 10.
- Window glazing according to one of Claims 1 to 4, characterised in that the sum of the widths (d1, d2) of a respective first and a second surface portion (3, 4) is always less than the wavelength of the operating frequency: d1 + d2 < λo.
- Window glazing according to one of Claims 1 to 5, characterised in that a further pane is arranged in the space (5) between the outer pane (2) and the inner pane (7).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4340907A DE4340907C1 (en) | 1993-12-01 | 1993-12-01 | Window glazing |
DE4340907 | 1993-12-01 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0657613A1 EP0657613A1 (en) | 1995-06-14 |
EP0657613B1 true EP0657613B1 (en) | 1997-12-29 |
Family
ID=6503892
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94118447A Expired - Lifetime EP0657613B1 (en) | 1993-12-01 | 1994-11-24 | Window glazing |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0657613B1 (en) |
DE (2) | DE4340907C1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19503892C1 (en) * | 1995-02-07 | 1996-10-24 | Sekurit Saint Gobain Deutsch | Car glass pane provided with an electrical conductive layer |
DE10313292A1 (en) * | 2003-03-25 | 2004-10-14 | Bgt Bischoff Glastechnik Ag | Double glazing arrangement for buildings located close to airports comprises as a partially reflecting layer a pattern of strips made from an electrically conducting silver paste pressed on one surface of an outer pane and partially fired |
AU2005204261B1 (en) * | 2005-07-14 | 2007-01-04 | Augustin, Lada | Insulation double, triple glass and mirrors deep spatially moving effect |
TR201903559T4 (en) * | 2011-12-14 | 2019-04-22 | Saint Gobain Deutsche Glas Gmbh | Glass coating that absorbs the radar reflection. |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03228850A (en) * | 1990-02-02 | 1991-10-09 | Nippon Sheet Glass Co Ltd | Radio wave absorbing glass and structure of light transmission part of buiding |
DE4227032C1 (en) * | 1992-08-14 | 1993-09-30 | Deutsche Aerospace | Window glazing |
-
1993
- 1993-12-01 DE DE4340907A patent/DE4340907C1/en not_active Expired - Fee Related
-
1994
- 1994-11-24 EP EP94118447A patent/EP0657613B1/en not_active Expired - Lifetime
- 1994-11-24 DE DE59404892T patent/DE59404892D1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE59404892D1 (en) | 1998-02-05 |
EP0657613A1 (en) | 1995-06-14 |
DE4340907C1 (en) | 1995-01-19 |
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