EP2481876A1 - Oberlicht zum Schutz einer Zone gegen Sonneneinstrahlung - Google Patents

Oberlicht zum Schutz einer Zone gegen Sonneneinstrahlung Download PDF

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Publication number
EP2481876A1
EP2481876A1 EP20120153115 EP12153115A EP2481876A1 EP 2481876 A1 EP2481876 A1 EP 2481876A1 EP 20120153115 EP20120153115 EP 20120153115 EP 12153115 A EP12153115 A EP 12153115A EP 2481876 A1 EP2481876 A1 EP 2481876A1
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EP
European Patent Office
Prior art keywords
opening
screen
illuminated
sun
area
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.)
Granted
Application number
EP20120153115
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English (en)
French (fr)
Other versions
EP2481876B1 (de
Inventor
Christophe Lamarque
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Hisl
Original Assignee
Hisl
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Filing date
Publication date
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Application filed by Hisl filed Critical Hisl
Priority to PL12153115T priority Critical patent/PL2481876T3/pl
Publication of EP2481876A1 publication Critical patent/EP2481876A1/de
Application granted granted Critical
Publication of EP2481876B1 publication Critical patent/EP2481876B1/de
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage; Sky-lights
    • E04D13/03—Sky-lights; Domes; Ventilating sky-lights
    • E04D13/032—Supports or connecting means for sky-lights of vaulted shape
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage; Sky-lights
    • E04D13/03—Sky-lights; Domes; Ventilating sky-lights
    • E04D13/033—Sky-lights; Domes; Ventilating sky-lights provided with means for controlling the light-transmission or the heat-reflection, (e.g. shields, reflectors, cleaning devices)
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F10/00—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins
    • E04F10/005—Rigidly-arranged sunshade roofs with coherent surfaces
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F10/00—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins
    • E04F10/08—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of a plurality of similar rigid parts, e.g. slabs, lamellae

Definitions

  • the invention relates to a method for protecting an area that can be exposed to the direct radiation of the sun, in particular from a roof area or a window, against direct solar radiation in summer, and a device for protection obtained by implementing said method. It extends to a zenith lighting device comprising such a protective device.
  • the invention therefore aims at providing a method of protecting an area, such as a roof area, which can be exposed to the direct radiation of the sun, making it possible to protect said area from direct sunlight in the summer and allowing said area to receive direct radiation from the Sun in winter.
  • the invention also aims at providing a method of protecting such a roofing zone enabling said zone to receive a significant amount of indirect light in summer, although it is obscured by the direct radiation of the Sun in this season.
  • the invention aims to provide such a simple protection method and easy to implement.
  • the invention is particularly aimed at a method of economic protection.
  • the invention also aims at providing a device for protecting such a zone which has the same advantages.
  • the invention also relates to a zenith lighting device comprising such a protection device whose installation is simple and does not require adjustments.
  • the equatorial edge of the screen is the edge on the south side of the screen.
  • polar means any element located on the side of the terrestrial pole closest to the installation site.
  • polar edge of a screen is the edge on the north side of the screen.
  • solar noon designates the hour of noon according to the solar time, sometimes also called “true midi”. This is the culmination point of the Sun in the Earth's sky on a given day, seen from a given land installation site. It is also the point at which the hour angle of the sun is zero at the site of installation considered.
  • An installation site according to the invention is fixed in the terrestrial reference, that is to say that its latitude, longitude and azimuthal orientation are fixed.
  • an installation site according to the invention may in particular be a building roof or a floor.
  • a lit area is an immovable surface capable of being exposed to the direct radiation of the sun and being heated by this one.
  • Said illuminated area is in particular located substantially under a protective screen disposed according to a method according to the invention. We want to protect this lit area (and / or a volume of air below) any warming due to the radiation of the Sun in summer, and we wish instead to promote its warming by the radiation of the Sun in winter.
  • An illuminated zone according to the invention extends to all types of surfaces, and in particular comprises surfaces heated by the effect of solar radiation and glazed surfaces allowing at least some components of the sun's light to pass through.
  • an illuminated area according to the invention located on the roof is particularly likely to allow greenhouse heating of a volume of air located under the roof.
  • the screen is fixedly mounted relative to the installation site and therefore it is fixed relative to the illuminated area. It is a method of obtaining a simple and economical device, without any mobile mechanical part as soon as it is installed and as long as it performs its functions.
  • the screen is disposed above the illuminated area, that is to say it is placed substantially above the illuminated area in a direction orthogonal to a plane tangent to said illuminated area .
  • the screen is generally vertically above the illuminated area.
  • the orthogonal projection of the screen does not generally have the same shape as the illuminated area.
  • the screen is arranged at a distance from the illuminated area, that is to say, it is generally disjoint from the latter.
  • Each screen disposed according to the invention is above an illuminated area.
  • the edges of the screen are not necessarily located at the vertical edges of the illuminated area.
  • the screen may be shifted north or south relative to the screen.
  • the equatorial edge of the screen towards the equator with respect to the vertical equatorial edge of the illuminated area. That is to say between the North Pole and the Tropic of Cancer for example, the southern edge of the screen is advantageously shifted towards the South with respect to the southern edge of the illuminated area.
  • the rays coming from the Sun at solar noon at the summer solstice in particular, have a non-zero angle with respect to the vertical (provided they are not just in the tropics) .
  • the screen must be arranged slightly offset from the equatorial edge of the illuminated area.
  • the screen is further offset in that the installation site is far from the tropic towards the nearest pole.
  • the screen is all the more offset in that it is arranged high relative to the illuminated area.
  • the screen is arranged so that it forms, with the illuminated area in particular and with the installation site in general, an equatorial opening formed by the equatorial edge of the screen and a curve of the illuminated surface, or the installation site. Said curve is formed of the points closest to each point of the equatorial edge of the screen. Similarly, the polar edge of the screen forms with the illuminated area and / or the installation site a polar opening.
  • the polar opening is on average higher compared to the illuminated area and / or the installation site than the equatorial opening. So the polar aperture is larger than the equatorial aperture (especially if the east-west clutter of the equatorial edge of the screen is similar to the east-west clutter of the polar edge of the screen).
  • the screen is advantageously installed inclined in a north-south direction relative to the plane of the installation site.
  • the equatorial edge of the screen is usually installed lower than its polar edge.
  • a screen is disposed upper edge north, and lower edge south.
  • the lower edge of the screen is thus located on the south side in the northern hemisphere and on the north side in the southern hemisphere.
  • This arrangement of the screen makes it possible, in summer, to protect the lighted area from the direct rays of the Sun while allowing a diffuse or reflected (and therefore non-direct) light to illuminate the illuminated area.
  • This diffuse or reflected light penetrates through the polar opening.
  • this arrangement of the screen provides a significant natural lighting of a room under the illuminated area, while avoiding heating by greenhouse effect in summer.
  • the shape, the azimuthal direction and the position of the screen are chosen in such a way that at least three-quarters of the illuminated area are obscured from the direct rays of the Sun at solar noon at the summer solstice and that at least a quarter of the illuminated area is illuminated by direct rays of the Sun passing through the equatorial opening at solar noon at the winter solstice.
  • a screen according to the invention is advantageously chosen continuously between its equatorial edge and its polar edge. There is therefore only one screen, in one piece, between the equatorial edge and the polar edge.
  • the shape of the screen is chosen, in combination with its orientation and its final disposition above the illuminated area, on the one hand so that its equatorial edge is at least partly at a distance from the surface of the screen. the illuminated area and that of the installation site.
  • the equatorial opening thus formed, direct rays of the Sun can pass and air can circulate.
  • the invention thus makes it possible to minimize the greenhouse effect through an illuminated zone formed of a translucent or transparent glazed surface in summer, and to maximize the greenhouse effect by such a zone illuminated in winter.
  • the shape and layout of a screen can be chosen so that the projection of its solar midday shadow to the summer solstice covers at least the illuminated area, especially so that the outline of the shadow of the screen corresponds perfectly to the contour of the lit area at solar noon at the summer solstice.
  • the shape, the azimuthal direction and the position of the screen can be chosen so that at the summer solstice no direct ray of the Sun impacts the illuminated area and whatever the time between sunrise and sunset.
  • the illuminated area impacted by direct sun rays at solar noon increases between the summer solstice and the winter solstice and decreases between the winter solstice and the solstice of the sun. summer.
  • the screen is arranged so as to obscure the illuminated area of any direct ray of the Sun at solar noon at the summer solstice.
  • the amount of light passing through the screen in any season is adjusted by choosing a screen having holes allowing the passage of direct rays of the sun.
  • the greenhouse effect is strongly limited in summer by shading performed on almost the entire lit area, a few holes in the screen provide more natural lighting.
  • the choice of such a screen is particularly advantageous when the illuminated area is a light penetration surface in a room under the roof, such as a window for example.
  • the number of holes, their dimensions, their shapes, their embodiments and their arrangements on the screen are parameters that can be chosen according to different criteria such as, for example: the amount of light that must pass through the screen, the aesthetics of the screen, etc.
  • a non-pierced but partially translucent screen may be chosen.
  • the shape, the direction and the position of the screen are chosen so that the majority - in particular all - of the illuminated area is illuminated by direct rays of the Sun passing through the equatorial opening at solar noon at the winter solstice.
  • An illuminated zone according to the invention can be of any type, and can be found on any type of installation site. In particular, it can be an area of a roof or a floor.
  • the installation site is a roof and in that the illuminated area is an opening in the roof, said opening being closed by a cover member in a waterproof material and at least translucent.
  • At least one translucent material according to the invention is translucent or transparent to at least a portion of the solar radiation.
  • a material may be selected from glass, polycarbonates, and the like.
  • Such a covering element is advantageously a covering window, such as a porthole, a punctual skylight, a skylight (for example vault type), a fixed frame, a skylight frame with a snuffbox, a ventilation frame or smoke extraction, a Velux®, etc.
  • a covering window such as a porthole, a punctual skylight, a skylight (for example vault type), a fixed frame, a skylight frame with a snuffbox, a ventilation frame or smoke extraction, a Velux®, etc.
  • the cover element is mounted on a frame itself mounted on the periphery of the opening formed in the roof, the direct rays of the Sun on the cover element for heating a the volume of air below the roof, particularly below the illuminated surface and under the roofing element.
  • the respective mountings of the cover member on the frame, and the frame on the periphery of the opening may be made sealingly, at least watertight.
  • the waterproofness of the roof is achieved while permitting the penetration of light in an underlying room.
  • a greenhouse effect is possible when the lighted glass area is hit by direct sunlight.
  • the cover element can be mounted in a sealed manner around the illuminated area, the direct rays of the Sun on the illuminated area for heating a volume of air below the roof, particularly below the illuminated area and under the cover element.
  • the illuminated zone is not a source of air exchange between a volume of air (a room) located under the roof and the outside so as to minimize heat losses.
  • the screen is chosen from a material that is opaque to solar radiation.
  • the screen being outside and disjoint from the installation site (at least by its equatorial and polar edges) allows the creation of a convective air flow under the screen.
  • the screen mounted according to the method of the invention being disjoined from the illuminated area and located outside, its heating does not lead to heating, for example a room under a roof.
  • a method according to the invention can be implemented on existing installation sites, for example on existing roof windows. Such a method makes it possible to add a solar protection a posteriori, and from the outside.
  • the protection method according to the invention makes it possible to obtain a device for protecting an illuminated area against the direct radiation of the sun in summer.
  • the invention extends in particular to a protection device directly obtained by a protection method according to the invention.
  • the invention also relates to such a protection device obtained by combining all or part of the characteristics mentioned above or below, especially in relation to the protection method according to the invention.
  • such a device comprises at least one screen and means for fixing this screen above said illuminated area according to a method according to the invention.
  • a device according to the invention is simple and economical because it has no moving part in operation, and in particular no motorization.
  • Such a zenith lighting device may be prefabricated in the factory according to a prefabrication note according to a manufacturing method relating to the final installation site of said zenith lighting device.
  • a zenith lighting device can be manufactured in a different latitude from that installation site, provided you know the latitude of the installation site.
  • the mounting of a device according to the invention is then simplified, since the entire window and the screen (s) of protection can be delivered and installed in a block or kit.
  • the invention also relates to a zenith lighting device characterized in combination by all or some of the features mentioned above or below in particular in connection with the protection method according to the invention.
  • a protection device or a zenith lighting device obtained by a method according to the invention makes it possible in particular to obtain an effective protection against the greenhouse effect of a roof glazing in summer, while obtaining a heating effect by important greenhouse in winter.
  • Such devices also allow to maintain significant natural lighting throughout the year thanks to its large north-facing opening in the northern hemisphere, or south in the southern hemisphere. This lighting can advantageously be improved, without substantially increasing the greenhouse effect in summer, thanks to (or) screen (s) pierced (s) of holes or slightly translucent (s).
  • the vertical plane along the north-south axis at the installation site according to one of the Figures 1 to 7 is also called the meridian of sidereal time in astronomy, or the "local meridian" is the plane (or disk) containing the North Celestial Pole, the South Celestial Pole, and the zenith of the installation site. It is noted A on the figure 4 . Solar noon is reached when the sun crosses this plane.
  • an installation site according to the invention is advantageously inclined less than 90 degrees from the horizontal - that is to say that the installation site n is not vertical.
  • the installation site is notably advantageously inclined less than 45 degrees relative to the horizontal, and is particularly substantially horizontal, that is to say that it forms an angle less than 20 degrees with the horizontal .
  • the installation site is assumed to be a horizontal roof 1, that is to say that it forms a plane orthogonal to the local zenith-nadir axis, it is the plane of the roof.
  • the invention however applies both to other areas to protect and other configurations.
  • the zenith lighting device shown in figure 1 has a frustoconical screen 3 mounted fixed above an illuminated area 2 covered by a glazing 4.
  • the glazing is framed by a frame 6 itself mounted on a roof 1 in which an opening has been arranged to be able to arrange said frame 6.
  • the frame 6 is in two parts: a part attached to the roof 1, and a second part movable relative to the first part, to be able to open the glazing 4, so as to form an opening.
  • the screen is attached to the frame, to a curb, or to the roof by means 5 fixing.
  • arches 5 can be used on which the screen 3 is bolted.
  • the hoops themselves are bolted to the frame 6 in the embodiment shown.
  • the screen 3 is inclined in the north-south direction. Thus it has an upper edge 31 higher with respect to the plane of the roof 1 than its opposite edge: the lower edge 32.
  • the upper edge 31 of the screen is oriented towards the north: it is the polar border 31.
  • the lower edge 32 is oriented towards the south: it is the equatorial edge 32.
  • the equatorial edge 32 defines with its projection orthogonal to the plane of the roof, an opening, called the equatorial opening.
  • the upper edge 31 defines with its projection orthogonal to the plane of the roof, an opening, called the polar opening, larger than the equatorial opening.
  • the polar opening is particularly on average and in each north-south section higher than the equatorial opening.
  • the screen 3 is made of a material opaque to sunlight. That is why, in summer, the majority of the lighting of a room under the illuminated zone 2 comes from diffuse or reflected solar light penetrating through the polar opening. Also in order to obtain a more intense natural lighting through the glazing 4 without significantly increasing the greenhouse effect, small holes have been drilled in the screen 3.
  • the lower surface of the screen may be covered with a reflective material so as to transmit a maximum of diffuse or reflected light received by the opening polar towards the illuminated surface 2.
  • the height of the equatorial edge 32 can be defined as described below.
  • the illuminated zone has a width L (x) in the north-south direction, in this abscissa.
  • ⁇ is zero. It should be noted that ⁇ is not necessarily always determined in the case of complex roofs or illuminated areas located at the ridge of a roof. It is then more correct to use the angle that the illuminated area makes with the local horizontal for ⁇ .
  • the coefficient p can be chosen as a function of the proportion of illuminated zone 2 which it is desired to be illuminated by direct rays of the Sun at solar noon at the winter solstice.
  • the relationship (R1) is a simplified relationship that does not take into account the installation of the screen to obscure the area lit by the direct rays of the Sun in summer. Indeed, to protect the entirety of the lit area at midday solar at the summer solstice, the equatorial edge of the screen must be all the more offset towards the equator with respect to the vertical of the southern edge of the zone. illuminated, that the installation site of the protective device or the overhead lighting device from a method according to the invention is close to a terrestrial pole.
  • an embodiment of the method according to the invention is to arrange the lower edge of the screen at a height h (x) for any point x of the curvilinear abscissa of the equatorial edge of the illuminated area according to the relation (R5): h x ⁇ p .
  • the sun's rays at solar noon at the summer solstice arrive at an angle ⁇ with respect to the plane of the roof.
  • the sun's rays at solar noon at the winter solstice arrive at an angle ⁇ with respect to the plane of the roof.
  • the angle ⁇ is related to the angle ⁇ by the relation (R4).
  • the height of the equatorial edge 32 with respect to the plane of the roof 1 can be determined thanks to the relation (R5) as a function of the proportion p of illuminated zone 2 which it is desired to receive direct rays from the Sun at solar noon at winter solstice.
  • a zenith lighting device having an illuminated zone 2 of constant width of 1 meter in the north-south direction
  • Each device comprises a profiled screen 3 whose profile has a monotonous curvature in a section through the plane of the local meridian, and means 5 for fixing this screen above an illuminated surface 2.
  • Each screen is fixed to the frame 6, to a curb, or to the roof 1 by means 5 fixing.
  • arches 5 can be used on which each screen 3 is bolted.
  • the hoops themselves are bolted to the frame 6 in the embodiment shown.
  • Each screen is arranged above a corresponding illuminated area.
  • the illuminated areas of the roof are covered by a transparent cover 4 mounted on a frame 6.
  • the transparent cover 4 is framed by the frame 6 itself mounted on the roof 1 in which an opening has been provided to be able to arrange said frame 6 .
  • the screens 3 are made of a material opaque to the sun's rays and are pierced.
  • the cover 4 is entirely obscured by the direct radiation of the Sun at solar noon at the summer solstice with the exception of the sun's rays that can pass through each screen through the holes.
  • the figure 5 teaches a device in accordance with figures 3 and 4 , sectional view through the A plane (from the West). Sun rays at solar noon at the summer solstice arrive at an angle ⁇ with respect to the roof. The polar edge 31 and the equatorial edge 32 are therefore shifted towards the south with respect to the respective polar and equatorial edges of the cover 4, to protect the latter from incident sun rays with an angle ⁇ .
  • each screen is disposed higher relative to the plane of the roof than their equatorial edge 32. So that each screen is generally inclined in the north-south direction.
  • any form of screen can be used as soon as its lowest point obscures the illuminated zone 2 of incident rays with an angle ⁇ , without obscuring it from incident rays with an angle ⁇ passers by the equatorial opening between the equatorial edge 32 of a screen and the roof 1.
  • the height and the shift towards the south of the equatorial edge 32 of each screen can for example be chosen according to the relations (R5) and (R6).
  • a long opening in a horizontal flat roof is shown covered by a roof element 4 of north-south main direction vault type.
  • the cover element 4 is a glazing unit, mounted on a frame 6, itself mounted on the periphery of the opening made in the roof 1.
  • FIGS. 6 and 7 show an embodiment in which a series of two screens 3 - each above an illuminated area - is arranged in the north-south direction.
  • the north-south distance between the screens can be adapted according to the desired lighting in winter and summer.
  • the distance between two successive screens can be chosen so that no direct ray of the sun can reach one or other of the illuminated areas passing between the two screens at the summer solstice.
  • a screen according to the invention is continuous between its equatorial edge and its polar edge, and it allows the direct illumination of at least a quarter of the illuminated area above which it is mounted, so that only the equatorial screen is in accordance with the invention.
  • the invention can be the subject of many other embodiments not shown.
  • the dimensions, the shape, the orientation and the arrangement of a screen 3 according to the invention can be modified to obtain a direct illumination by sun rays more or less important in summer and / or winter.
  • these parameters are adjusted for each latitude of the globe to which the device according to the invention obtained by a method according to the invention, or the zenith lighting device according to the invention, is intended to be installed.
  • each screen is not necessarily at the same distance h from the plane of the roof over its entire length (in the east-west direction), as shown in FIG. figure 4 .
  • This height can, as shown in figure 1 , vary along the length of the screen.
  • the holes can be of all types, of all shapes, and distributed in various patterns. These holes do not prevent the screen from being continuous between its equatorial edge and its polar edge.
  • a curb can sometimes enhance a cover element 4 relative to the roof.
  • the screen of a device according to the invention can advantageously be attached to this curb, to the frame of the cover element, or directly to the roof itself.
EP12153115.6A 2011-02-01 2012-01-30 Oberlicht zum Schutz einer Zone gegen Sonneneinstrahlung Active EP2481876B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL12153115T PL2481876T3 (pl) 2011-02-01 2012-01-30 Urządzenie zapewniające oświetlenie zenitalne do ochrony strefy przed promieniowaniem słonecznym

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1100304A FR2970997B1 (fr) 2011-02-01 2011-02-01 Procede de protection d'une zone contre le rayonnement solaire, dispositif associe, et dispositif d'eclairage zenithal comportant le dispositif associe

Publications (2)

Publication Number Publication Date
EP2481876A1 true EP2481876A1 (de) 2012-08-01
EP2481876B1 EP2481876B1 (de) 2015-10-21

Family

ID=45509400

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12153115.6A Active EP2481876B1 (de) 2011-02-01 2012-01-30 Oberlicht zum Schutz einer Zone gegen Sonneneinstrahlung

Country Status (5)

Country Link
EP (1) EP2481876B1 (de)
ES (1) ES2559618T3 (de)
FR (1) FR2970997B1 (de)
PL (1) PL2481876T3 (de)
PT (1) PT2481876E (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9194128B1 (en) * 2015-04-20 2015-11-24 Arizona Sky Shades, Llc Exterior mounted solar shade screen for skylights

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH390510A (de) * 1961-12-01 1965-04-15 Esser Kg Klaus Lichtkuppel aus lichtdurchlässigem Kunststoff zum Einbau in ein Gebäudedach
FR2705985A1 (fr) * 1993-06-01 1994-12-09 Innovation Partners Système d'éclairage zénithal destiné à être disposé dans une ouverture ménagée dans une toiture.
DE29520570U1 (de) * 1995-11-28 1996-03-21 Goedlicht Bv Schutzvorrichtung gegen direkte Sonneneinstrahlung

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1290031A (fr) 1961-05-26 1962-04-06 Klaus Esser Bau Und Industrieb Coupole lumineuse, de préférence en matière plastique translucide, pour toiture de bâtiments

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH390510A (de) * 1961-12-01 1965-04-15 Esser Kg Klaus Lichtkuppel aus lichtdurchlässigem Kunststoff zum Einbau in ein Gebäudedach
FR2705985A1 (fr) * 1993-06-01 1994-12-09 Innovation Partners Système d'éclairage zénithal destiné à être disposé dans une ouverture ménagée dans une toiture.
DE29520570U1 (de) * 1995-11-28 1996-03-21 Goedlicht Bv Schutzvorrichtung gegen direkte Sonneneinstrahlung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"Reduce heat in the summer, enhance solar gain in winter", SKYLIGHT OVERHANGS, no. 1, October 1981 (1981-10-01), pages 1 - 2, XP001473404 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9194128B1 (en) * 2015-04-20 2015-11-24 Arizona Sky Shades, Llc Exterior mounted solar shade screen for skylights

Also Published As

Publication number Publication date
ES2559618T3 (es) 2016-02-15
EP2481876B1 (de) 2015-10-21
FR2970997B1 (fr) 2013-03-08
PL2481876T3 (pl) 2016-04-29
FR2970997A1 (fr) 2012-08-03
PT2481876E (pt) 2016-02-15

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