EP0956423B1 - Dispositif de protection contre le soleil de type store venitien - Google Patents

Dispositif de protection contre le soleil de type store venitien Download PDF

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Publication number
EP0956423B1
EP0956423B1 EP97954709A EP97954709A EP0956423B1 EP 0956423 B1 EP0956423 B1 EP 0956423B1 EP 97954709 A EP97954709 A EP 97954709A EP 97954709 A EP97954709 A EP 97954709A EP 0956423 B1 EP0956423 B1 EP 0956423B1
Authority
EP
European Patent Office
Prior art keywords
flat elements
lamellae
sun
upper side
lamella
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
Application number
EP97954709A
Other languages
German (de)
English (en)
Other versions
EP0956423A2 (fr
Inventor
Harry Wirth
Andreas Gombert
Volker Wittwer
Jörg JUNGJOHANN
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Original Assignee
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
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 Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV filed Critical Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Publication of EP0956423A2 publication Critical patent/EP0956423A2/fr
Application granted granted Critical
Publication of EP0956423B1 publication Critical patent/EP0956423B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B9/26—Lamellar or like blinds, e.g. venetian blinds
    • E06B9/38—Other details
    • E06B9/386—Details of lamellae
    • 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
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B2009/2417—Light path control; means to control reflection

Definitions

  • the invention relates to a sun protection device in the manner of a blind with a large number of parallel slats with horizontal extending longitudinal axes and essentially flat, elongated Surface elements, each individual slat at such an angle from the The sun can be irradiated so that the horizontal view is largely retained.
  • Sun protection devices of the aforementioned type as they are known, for example, as louvre blinds made of vinyl or aluminum, only insufficiently fulfill the desire for a sun protection function that Protect you from direct glare from sunlight inside rooms should, on the other hand, a certain light transmission for the entry of Daylight allowed, so that artificial light is not used inside the room can.
  • louvre blinds allow, especially when more complete Shading, no visual view through to the outside, but for the indoor climate as well as the living and working quality in such shaded areas would be desirable.
  • the so-called serves as a geometric indicator for louvre blinds Aspect ratio A / B, which is the ratio between the lamella spacing A between two adjacent blind slats and the slat width B indicates.
  • a / B which is the ratio between the lamella spacing A between two adjacent blind slats and the slat width B indicates.
  • a sun protection device (blind) is known, the has prism-shaped, reflective Venetian blind rods.
  • the prismatic formation of the rods causes the impinging Sun rays are reflected at a certain angle.
  • adjustment deviations of the individual slats are unavoidable.
  • the Solar radiation also has a certain angular difference. As a consequence, that radiation always passes the upper edge of the deflecting facet. This Radiation is only thrown back onto the deflecting facet if a dense one Conclusion is given. Otherwise this radiation will penetrate further, so that here too glare occurs in the room.
  • the one proposed in US-A-4,773,733 Solution also offers the choice between a one-sided structure, that works with refraction, which can create colors, or one Execution structured on both sides, but which is more complicated to manufacture.
  • the invention has for its object to provide a sun protection device according to Art a blind with a plurality of slats arranged parallel to each other horizontal longitudinal axes and essentially flat, elongated trained surface elements, with each individual slat under one
  • An angle that can be irradiated by the sun is that the horizontal view is predominant is retained to develop in such a way that, on the one hand, the Transparent properties largely thanks to the sun protection device are unaffected or only slightly impaired and on the other hand any Prevents glare from direct sunlight on the interior of the room becomes.
  • the sun protection device should not show any self-heating and be made of optically transparent material. After all, it applies Manufacture sun protection device cheaper.
  • the alignment of the surfaces of the optical connectors parallel to the Third panel elements ensures that direct sunlight can hit the slat can only leave via the first surface elements. That aspect is important so that adjustment errors and other deviations from the ideal beam path Do not impair the function of the slat.
  • the invention is based on the idea that sunlight on the Slat top preferably strikes at an angle of about 40 ° -55 ° and is reflected back there by total reflection, preferably in the same Direction from which the sunlight falls on the sun protection device.
  • Effective sun protection can predominantly be used with relatively small inclinations individual slats can be achieved around their longitudinal axes.
  • the for horizontal viewing available free areas between the individual Slats become very large compared to blinds, which are usually normal, i.e. H. require vertical alignment of the slats to the sun.
  • the sun protection device shown in FIG. 1 has a drive mechanism M in its horizontal orientations adjustable slats L, each having a width B and a mutual distance A.
  • the lamella arrangement is mounted behind a window F in order to prevent the light rays coming directly from the sun from reaching the interior of the room.
  • the surfaces of the lamellae are designed in such a way that sun rays striking the surfaces are preferably at an angle of 40 ° -55 ° relative to the surface plane in one Angle range ⁇ Refl be reflected back.
  • the lamella planes can be moved by means of the drive mechanism M about their respective longitudinal axes LA by an angle ⁇ Lam .
  • the sunlight striking the lamella surfaces (LO) is preferably reflected back in the same direction as it strikes the surface.
  • the front ones facing the solar radiation are preferably Slat edges on their underside with a reflective coating provided so that back-reflected light rays that are under a steeper Reflection angles are reflected back and in this way to the bottom the lamella above, on the reflective layer to the outside can be distracted.
  • a transparent material as an additive to the surface of each slat is applied, for example as a transparent film, or the slat itself consists of the structure, basically serves a folded surface that Has surface sections that are substantially perpendicular to the incident Rays of light are oriented.
  • FIG 3 shows an embodiment of a lamella layer or shown as part of a complete slat.
  • the one facing the sun Surface has parallel ribs R, the cross section of a Sawtooth structure correspond.
  • the underside of the slat, however, is flat educated.
  • FIG. 4 is a cross-sectional view through the inventive Surface structure of the lamella shown.
  • Essential property of Surface structure is that an oblique to the top (LO) of the Slat-directed first surface EF, hereinafter also referred to as the reception surface, oriented largely normal to the sun by the slat as a whole is aligned accordingly to the sun.
  • the essentially the Receiving surface EF perpendicularly penetrating sun rays meet one third surface HF running parallel to the lamella plane and are on this totally reflected.
  • the totally reflected beam components then reach one second surface VF directed largely perpendicular to the upper side (LO) of the lamella and are totally reflected on this a second time, which leads to this Way deflected light rays essentially into the opposite Direction with which they hit the receiving surface EF.
  • the angular range within which total reflection strikes depends on the refractive index of the optically transparent material of the layer applied to the lamella or the lamella itself.
  • the angle calculated above is referred to the normal Receiving area EF measured.
  • To opt for possible losses within the To avoid transparent medium corresponds to the massive layer thickness D 4 ideally an integer multiple of the structure height H. If the dimensioning deviates from the ideal case, additional, actually unnecessary total reflections within the massive layer.
  • the layer thickness D must also be reduced to zero, as a result of which Adjacent surfaces EF and VF are not visually connected to one another via connecting bridges are coupled. In this case, this is via the respective receiving area EF incident light again over this surface in the way of total reflection reflected back.
  • the shading problems indicated above occur not in this case.
  • FIG. 5 an embodiment is shown that between each one vertical surface VF and the corresponding adjacent one Receiving surface EF provides an additional reflecting surface RF.
  • this reflective surface RF prevents light from reaching a incidence angle deviating from the ideal case between two successive ones Receiving surfaces EF meets and also that too flat, back-reflecting light components on the respective back of the one in front Sawtooth element hits the vertical surface VF and in this way unwanted reflections and glare.
  • a solid design according to the embodiment according to FIGS. 6a and a mirrored version according to the embodiment of FIG. 6b.
  • the solid design according to FIG. 6a provides a coherent layer S covering the complete sawtooth structure, which consists of optically transparent material and has total reflection properties.
  • Light falling steeply onto the lamella surface, which would fall between adjacent elements without an additional layer S, is now guided in a kind of light guide onto the receiving surface EF located at the rear.
  • light emitted by the receiving surface EF which would run the risk of hitting the element in front because of its flat angle of reflection, is conducted via this element.
  • An optical contact between the additional layer S and the reflective structure should not come about because then undesired reflections favor glare.
  • the layer thickness of the additional layer S influences the angular tolerance within which the error possibilities described above can be eliminated.
  • the construction according to FIG. 6b provides a thin layer covering over the structural elements, in which the layer thickness d A can be chosen to be as small as desired. Only the connection between a successive vertical layer and a receiving layer are to be covered with an reflecting layer.
  • the manufacture of the sun protection device according to the invention in the manner of a Venetian blind is fundamentally known with the means of profile production in the endless process, for example by means of extrusion processes or in One-off production using embossing processes made of transparent polymers.
  • Sun protection device consists of a film made of transparent material, For example, emboss polycarbonate and attach it to a slat.
  • a lamella L curved for structural reasons, as a support structure shown on which the reflective by means of adhesive at the edge areas Film layer is attached as uncurved as possible.
  • the blind can also be pulled up and stacked.
  • the profile can be adjusted so that despite Curvature of the reflective layer optimal light deflection over the entire slat width is reached. For this, e.g. the vertical area VF in their alignment increasingly from the front to the rear edge of the slat tilted out of their vertical orientation.
  • the slats can preferably be made of transparent material, However, aluminum slats, for example, have the additional support Advantage that the underside of the slats automatically has reflective properties features.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Blinds (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
  • Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)

Claims (6)

  1. Dispositif brise-soleil du type d'un store d'intérieur, comprenant une pluralité de lames (L) en un arrangement en parallèle aux axes longitudinaux, qui s'étendent en sens horizontal, ces lames étant aptes à être tourné autour leur axes longitudinaux moyennant un mécanisme d'ajustage,
    caractérisé en ce que lesdites lames (L) ou une couche appliquée sur la face supérieure desdites lames (L) consistent en un matériau transparent pour la lumière solaire, et présente une section transversale orthogonale sur l'axe longitudinal desdites lames, ce dispositif étant composé par
    (a) premiers éléments de surface (EF) disposés à une inclinaison relative à la face supérieure (LO) desdites lames et aptes à être irradié par le soleil en un sens vertical environ,
    (b) deuxièmes éléments de surface (VF), qui sont disposés à fleur et à un angle aigu de 45° environ, relativement auxdites premiers éléments de surface (EF), et
    (c) un troisième élément de surface (HF) disposé environ en sens orthogonal sur lesdits éléments de surface (VF),
    en ce que des paires adjacentes d'éléments de surface (EF)-(VF) présentent un écart l'un de l'autre, qui permet une irradiation et émission pauvre en ombre via lesdits premiers éléments de surface (EF) à une irradiation approximativement verticale desdits premiers éléments de surface (EF) par la lumière solaire, et
    en ce que via cet écart, c'est-à-dire la distance entre des paires adjacentes d'éléments de surface (EF)-(VF), il n'y a pas des connexions optiques ou telles connexions optiques, dont une de ses surfaces soit coïncidente avec une face supérieure (LO) d'une lame, pendant que l'autre surface est parallèle à ladite troisième surface (HF) ou est y coïncidente,
    de façon, que la lumière solaire directe puisse émerger de la lame seulement via lesdits premiers éléments de surface.
  2. Dispositif brise-soleil selon la revendication 1,
    caractérisé en ce que l'écart entre la face supérieure (LO) desdites lames et ledit troisième élément de surface (HF) présente une épaisseur, qui est égal à un multiple entier de l'hauteur H, qui correspond à l'hauteur de structure desdites paires d'éléments de surface (EF)-(VF) au-dessus de la face supérieure de ladite lame (LO).
  3. Dispositif brise-soleil selon la revendication 1 ou 2,
    caractérisé en ce que lesdites paires (EF)-(V) d'éléments de surface présentent des flancs rectilignes ou légèrement incurvés.
  4. Dispositif brise-soleil selon une quelconque des revendications 1 à 3,
    caractérisé en ce que lesdits premiers éléments de surface inclinés (EF) de deux paires d'éléments de surface (EF)-(VF) respectives adjacentes sont reliés à une surface de réflexion (RF).
  5. Dispositif brise-soleil selon une quelconque des revendications 1 à 4,
    caractérisé en ce qu'une couche transparente peut être appliquée sur le contour desdites paires d'éléments de surface (EF)-(VF), qui porte directement sur lesdites éléments de surface inclinés (EF) et qui relie lesdits premiers éléments de surface inclinés (EF) de deux paires adjacentes d'éléments de surface (EF)-(VF) l'un à l'autre.
  6. Dispositif brise-soleil selon une quelconque des revendications 1 à 5,
    caractérisé en ce qu'un revêtement de réflexion est appliqué à la face inférieure desdites lames, qui ne présente pas un contact optique avec la face inférieure.
EP97954709A 1997-01-03 1997-12-23 Dispositif de protection contre le soleil de type store venitien Expired - Lifetime EP0956423B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19700111 1997-01-03
DE19700111A DE19700111C2 (de) 1997-01-03 1997-01-03 Sonnenschutzvorrichtung nach Art einer Jalousie
PCT/DE1997/003017 WO1998029633A2 (fr) 1997-01-03 1997-12-23 Dispositif de protection contre le soleil de type store venitien

Publications (2)

Publication Number Publication Date
EP0956423A2 EP0956423A2 (fr) 1999-11-17
EP0956423B1 true EP0956423B1 (fr) 2003-03-26

Family

ID=7816811

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97954709A Expired - Lifetime EP0956423B1 (fr) 1997-01-03 1997-12-23 Dispositif de protection contre le soleil de type store venitien

Country Status (5)

Country Link
US (1) US6227280B1 (fr)
EP (1) EP0956423B1 (fr)
AT (1) ATE235648T1 (fr)
DE (2) DE19700111C2 (fr)
WO (1) WO1998029633A2 (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
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NL1012238C2 (nl) * 1999-06-04 2000-12-06 Etap Nv Zonwering van het jaloezie-type.
NL1016790C2 (nl) 2000-12-04 2002-06-05 Etap Nv Systeem voor het regelen van de lichttoetreding in een binnenruimte van een gebouw.
DE10161938A1 (de) * 2001-12-17 2003-06-18 Fraunhofer Ges Forschung Sonnenschutzvorrichtung
DE10207564C1 (de) * 2002-02-22 2003-11-20 Fraunhofer Ges Forschung Vorrichtung zur Lichtlenkung aus wenigstens einem teiltransluzentem Flächenmaterial
US20050056382A1 (en) * 2003-06-30 2005-03-17 Sassan Khajavi Window blinds with rotating slats that have different faces
US20080202703A1 (en) * 2007-02-28 2008-08-28 Ian Robert Edmonds Daylighting system comprising light re-direction elements in a Venetian blind
EP2331792A2 (fr) 2007-06-06 2011-06-15 Areva Solar, Inc Centrale à cycle combiné
US8378280B2 (en) * 2007-06-06 2013-02-19 Areva Solar, Inc. Integrated solar energy receiver-storage unit
US20090126364A1 (en) * 2007-06-06 2009-05-21 Ausra, Inc. Convective/radiative cooling of condenser coolant
US9022020B2 (en) 2007-08-27 2015-05-05 Areva Solar, Inc. Linear Fresnel solar arrays and drives therefor
US20090056699A1 (en) * 2007-08-27 2009-03-05 Mills David R Linear fresnel solar arrays and receievers therefor
CA2646144C (fr) * 2008-12-10 2012-04-10 Plastibec Inc. Persiennes perforees avec strate a motifs, et ensemble pour lesdites persiennes
GB2474427A (en) * 2009-10-13 2011-04-20 Levolux At Ltd Exterior solar shading louvre with light redirection and infra-red filter
CN101818616B (zh) * 2010-04-30 2013-04-17 杭州欧卡索拉科技有限公司 多片组合升降式百叶片
CN101845934B (zh) * 2010-04-30 2012-02-29 杭州欧卡索拉科技有限公司 多片组合翻转式百叶片
EP2783060A4 (fr) * 2011-11-24 2015-07-29 Univ British Columbia Réseau d'isolation ou transmission réglable d'ailettes, système et structure de construction
CN104297887A (zh) * 2013-07-17 2015-01-21 玉晶光电(厦门)有限公司 摄影镜头及用于摄影镜头的垫圈

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US631220A (en) * 1899-06-06 1899-08-15 Charles E Manning Illuminating window-glass.
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US2572957A (en) * 1948-11-26 1951-10-30 Robert P Shaw Room illuminator
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Also Published As

Publication number Publication date
WO1998029633A2 (fr) 1998-07-09
DE19700111A1 (de) 1998-07-16
ATE235648T1 (de) 2003-04-15
WO1998029633A3 (fr) 1998-10-29
DE59709650D1 (de) 2003-04-30
EP0956423A2 (fr) 1999-11-17
US6227280B1 (en) 2001-05-08
DE19700111C2 (de) 2003-02-06

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