DE10231317A1 - Sun protection device for partially transparent protection of windows/facades has a unit of transparent material with a top planar boundary surface and a periodic structure of plane-parallel bodies - Google Patents

Sun protection device for partially transparent protection of windows/facades has a unit of transparent material with a top planar boundary surface and a periodic structure of plane-parallel bodies Download PDF

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Publication number
DE10231317A1
DE10231317A1 DE2002131317 DE10231317A DE10231317A1 DE 10231317 A1 DE10231317 A1 DE 10231317A1 DE 2002131317 DE2002131317 DE 2002131317 DE 10231317 A DE10231317 A DE 10231317A DE 10231317 A1 DE10231317 A1 DE 10231317A1
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Prior art keywords
bodies
protection device
sun protection
type
plane
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DE2002131317
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German (de)
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Harry Wirth
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Individual
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    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06BFIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/24Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06BFIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/24Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B2009/2417Light path control; means to control reflection

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Optical Elements Other Than Lenses (AREA)

Abstract

A unit of transparent material has an upper planar boundary surface (8) and a periodic structure of plane-parallel bodies of a type (1) designed as a hollow/transparent body with a refraction index smaller than the surrounding material or than simple boundary surfaces with the surrounding air that blank the unit off.

Description

1. Gegenstand der Erfindung1. Subject the invention

Die Erfindung betrifft eine Vorrichtung zum teiltransparenten Sonnenschutz für Fenster und Fassaden. Die Vorrichtung kann als drehbare Lamelle oder statisch eingesetzt werden. Eine selektive Ausblendung der direkten Sonne verringert die solare Energietransmission und reduziert die maximal auftretenden Leuchtdichten auf Werte in der Größenordnung des diffusen Himmelslichts. Bei erfindungsgemäßer Ausführung besteht jenseits der Ausblendrichtung Durchsicht mit hoher Bildqualität.The invention relates to a device for partially transparent sun protection for windows and facades. The The device can be used as a rotating slat or statically. Selectively hiding the direct sun reduces solar energy transmission and reduces the maximum luminance to values in of the order of magnitude of the diffuse sky light. In the inventive design there is beyond Fade out direction Transparency with high image quality.

2. Stand der Technik2. State of the technology

Seeger beschreibt im US Patent 3 438 699 eine Vorrichtung bestehend aus zwei komplementären Prismenplatten (1) aus transparentem Material, die einen Körper (9) mit planparallelen Oberflächen (8) erzeugen. Der Körper weist damit in seinem Inneren periodische Anordnungen von planparallelen Hohlkörpern des Typs (1) und (2) auf, die jeweils aufeinander senkrecht stehen.In US Patent 3,438,699 Seeger describes a device consisting of two complementary prism plates ( 1 ) made of transparent material that has a body ( 9 ) with plane-parallel surfaces ( 8th ) produce. The body thus has periodic arrangements of plane-parallel hollow bodies of the type ( 1 ) and (2), which are perpendicular to each other.

Für Einfallsrichtungen ungefähr senkrecht zur Oberfläche (8) werden die eintreffenden Strahlen durch zweifache Totalreflexion (3) zurückgelenkt („Ausblendbereich"). Für andere Einfallsrichtungen werden die Strahlen beim Eintritt gebrochen, durch die Hohlkörper des Typs (1) transmittiert und beim Austritt erneut gebrochen. Sie treten in der ursprünglichen Richtung aus der Platte aus. Diese direkten Strahlengänge (4) führen zu partieller Durchsicht.For directions of incidence approximately perpendicular to the surface ( 8th ) the incoming rays are caused by double total reflection ( 3 ) is deflected back ("blanking area"). For other directions of incidence, the rays are refracted upon entry by the hollow body of the type ( 1 ) transmitted and broken again when exiting. They emerge from the plate in the original direction. These direct ray paths ( 4 ) lead to partial review.

Es gibt jedoch gemäß 2 noch eine Reihe von unerwünschten Strahlengängen (A5,B6,C5,D6), die sich dem Strahlengang (4) überlagern und den Kontrast des transmittierten Bildes schwächen. Diese Strahlengänge entstehen durch Reflexion und/oder Transmission an Hohlkörpern Typ (2).However, there are according to 2 a number of undesired beam paths (A5, B6, C5, D6) that are related to the beam path ( 4 ) overlay and weaken the contrast of the transmitted image. These beam paths are created by reflection and / or transmission on hollow bodies of type ( 2 ).

Bartenbach beschreibt im Patent EP 0 090 822 eine Prismenplatte ähnlich wie Seeger, die teilweise mit einer spiegelnden Schicht belegt ist. Die spiegelnde Schicht kann durch Rückreflexion an der Oberfläche (8) zu überlagerten Abbildungen führen. Legt man 2 dieser Platten komplementär aufeinander, so daß wiederum transparente Hohlkörper Typ (1) entstehen, so werden die Reflexionen C5, B6 und D6 an den Hohlkörpern Typ (2) noch verstärkt.Bartenbach describes in the patent EP 0 090 822 a prism plate similar to Seeger, which is partly covered with a reflective layer. The reflective layer can be reflected back on the surface ( 8th ) lead to superimposed images. If 2 of these plates are placed on top of one another in a complementary manner, so that transparent hollow body type ( 1 ) arise, so the reflections C5, B6 and D6 on the hollow body type ( 2 ) reinforced.

3. Beschreibung der Erfindung3. Description the invention

Die Erfindung zielt auf eine Unterbindung von Strahlengängen, die an Körpern Typ (2) reflektiert werden und damit die Durchsicht durch Facetten Typ (1} stören.The invention aims at preventing beam paths which are applied to bodies of type ( 2 ) are reflected and thus the view through facet type ( 1 } to disturb.

Die Unterbindung wird erfindungsgemäß durch streuende Körper oder Schichten (7) erreicht, die die Hohlkörper Typ (2) ersetzen oder ergänzen (3). Die Transparenz geht damit bei den Körpern Typ (2) verloren. Die Strahlengängen (A5,B6,C5,D6) sind dadurch unterbunden, so daß sich dem Strahlengang (4) keine weiteren Bilder überlagern.According to the invention, the suppression is carried out by scattering bodies or layers ( 7 ) which the hollow body type ( 2 ) replace or add ( 3 ). The transparency goes with the body type ( 2 ) lost. The beam paths (A5, B6, C5, D6) are prevented, so that the beam path ( 4 ) do not overlay any other images.

Die Streuung kann durch eine rauhe Oberfläche (Oberflächenstreuung) oder eine weiße Schicht (Volumenstreuung) realisiert werden.The scatter can be caused by a rough surface (Surface scattering) or a white one Layer (volume scatter) can be realized.

Bei Weglassen der unteren Prismenplatte (4), unter Beibehaltung der streuenden Körper oder Schichten (7) entsteht eine Vorrichtung mit ähnlichen Eigenschaften, aber mit durch Lichtbrechung beeinträchtigter Durchsicht.If the lower prism plate ( 4 ), while maintaining the scattering bodies or layers ( 7 ) creates a device with similar properties, but with a view impaired by light refraction.

Claims (5)

Sonnenschutzvorrichtung bestehend aus einem Körper aus transparentem Material mit einer oberen, planen Grenzfläche (8), mit einer darunterliegenden periodischen Anordnungen von planparallelen Körpern des Typs (1), ausgebildet als Hohlkörper oder als transparente Körper mit einem kleineren Brechungsindex als das umgebende Material oder als einfache, den Körper abschließende Grenzflächen zur umgebenden Luft, so daß diese Körper (1) in einem Winkel von 25–65° zur Oberfläche (8) ausgerichtet sind, und der weiterhin eine periodische Anordnungen von Körpern des Typs (7) aufweist, die die Körper des Typs (1) miteinander verbinden und die mit einer lichtstreuenden Schicht versehen sind.Sun protection device consisting of a body made of transparent material with an upper, flat interface ( 8th ), with an underlying periodic arrangement of plane-parallel bodies of the type ( 1 ), designed as a hollow body or as a transparent body with a smaller refractive index than the surrounding material or as simple, body-closing interfaces to the surrounding air, so that these bodies ( 1 ) at an angle of 25–65 ° to the surface ( 8th ), and which is also a periodic array of bodies of the type ( 7 ) which is the body of the type ( 1 ) connect with each other and which are provided with a light-scattering layer. Sonnenschutzvorrichtung nach Anspruch (1), dadurch gekennzeichnet, daß der Körper durch eine untere Grenzfläche (10) abgeschlossen ist, die zur oberen Grenzfläche parallel liegtSun protection device according to claim (1), characterized in that the body through a lower boundary surface ( 10 ) that is parallel to the upper interface Sonnenschutzvorrichtung nach Anspruch (1), dadurch gekennzeichnet, daß die Körper (7) senkrecht zu den Körpern (1) angeordnet sindSun protection device according to claim (1), characterized in that the bodies ( 7 ) perpendicular to the bodies ( 1 ) are arranged Sonnenschutzvorrichtung nach Anspruch (1), dadurch gekennzeichnet, daß die Körper (7) zusätzlich einen Hohlkörper, beispielsweise einen Luftzwischenraum, oder einen Körper mit einem kleineren Brechungsindex als das umgebende Material aufweisen, beispielsweise in der Art der Körper Typ (1)Sun protection device according to claim (1), characterized in that the bodies ( 7 ) additionally have a hollow body, for example an air gap, or a body with a smaller refractive index than the surrounding material, for example in the type of body type ( 1 ) Sonnenschutzvorrichtung nach Anspruch (1), dadurch gekennzeichnet, daß die Körper (1) und (7) in ihrer Geometrie translationsinvariant, d.h. Extrusionskörper sindSun protection device according to claim (1), characterized in that the bodies ( 1 ) and (7) are translationally invariant in their geometry, ie are extrusion bodies
DE2002131317 2002-07-11 2002-07-11 Sun protection device for partially transparent protection of windows/facades has a unit of transparent material with a top planar boundary surface and a periodic structure of plane-parallel bodies Withdrawn DE10231317A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE2002131317 DE10231317A1 (en) 2002-07-11 2002-07-11 Sun protection device for partially transparent protection of windows/facades has a unit of transparent material with a top planar boundary surface and a periodic structure of plane-parallel bodies

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2002131317 DE10231317A1 (en) 2002-07-11 2002-07-11 Sun protection device for partially transparent protection of windows/facades has a unit of transparent material with a top planar boundary surface and a periodic structure of plane-parallel bodies

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DE10231317A1 true DE10231317A1 (en) 2004-01-22

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009003313A1 (en) * 2007-07-02 2009-01-08 Dingguo Pan Reflective plate with micro prisms for solar radiation
CN108873144A (en) * 2017-05-10 2018-11-23 中国科学院苏州纳米技术与纳米仿生研究所 Guiding device, backlight module and liquid crystal display
CN113740954A (en) * 2020-05-27 2021-12-03 宇目(厦门)科技有限公司 Optical waveguide structure and preparation method thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009003313A1 (en) * 2007-07-02 2009-01-08 Dingguo Pan Reflective plate with micro prisms for solar radiation
CN108873144A (en) * 2017-05-10 2018-11-23 中国科学院苏州纳米技术与纳米仿生研究所 Guiding device, backlight module and liquid crystal display
CN108873144B (en) * 2017-05-10 2020-05-19 中国科学院苏州纳米技术与纳米仿生研究所 Light guide device, backlight module and liquid crystal display
CN113740954A (en) * 2020-05-27 2021-12-03 宇目(厦门)科技有限公司 Optical waveguide structure and preparation method thereof

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