EP1201986B1 - Vorrichtung zur Lichtumlenkung sowie -ausblendung für den stationären Einsatz bei einer transluzenten Gebäudefassade zur gezielten Beleuchtung eines Innenraumes - Google Patents
Vorrichtung zur Lichtumlenkung sowie -ausblendung für den stationären Einsatz bei einer transluzenten Gebäudefassade zur gezielten Beleuchtung eines Innenraumes Download PDFInfo
- Publication number
- EP1201986B1 EP1201986B1 EP01118806A EP01118806A EP1201986B1 EP 1201986 B1 EP1201986 B1 EP 1201986B1 EP 01118806 A EP01118806 A EP 01118806A EP 01118806 A EP01118806 A EP 01118806A EP 1201986 B1 EP1201986 B1 EP 1201986B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- light
- optical elements
- region
- solid angle
- light exit
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S11/00—Non-electric lighting devices or systems using daylight
Definitions
- the invention relates to a device for light deflection as well Suppression for stationary use in a translucent building façade for targeted illumination of an interior with at least one translucent optical element having a newly formed light entrance side and a Light exit side provides, by a first curved interface as well is bounded at least by a second interface, wherein the curvature of the first interface is formed such that light rays from a first Solid angle range incident on the light entrance side and into the optical element couple by total reflection at the first interface to the area be concentrated at the second interface and that light rays coming from a second solid angle range incident on the light entrance side and in the optical Coupling element, through the first interface of the optical element escape.
- the invention relates to an element that in open and closed spaces as Sun protection element and can be used as a light-guiding element.
- To fulfill these claims come in many buildings sensor-controlled, tracked blind systems are used. It occurs in addition to unwanted interference effects by the permanent control of such Systems additionally have the problem that in shallow sun the interior darkens too much and the use of artificial light is required.
- Prismatic systems also often have the disadvantageous or disturbing felt Property that the radiation when passing through the prism spectrally in different directions is split, creating a color separation in the visible range of radiation occurs.
- the device shown in the above document is the targeted Shading of sunlight on translucent building facades Interior lighting hits.
- the optical principle of operation is characterized by the spatial geometry of one that converts sunlight. or blanking optical element specified and is basically based on the light concentration and the light deflection of solar radiation within a defined angle of incidence range, d. H. the optical element is capable of all those To focus on sunbeams coming from a given first Solid angle range incident on the optical element and all others Sunbeams are redirected accordingly.
- Figure 2 referenced in which the principle of operation of the known optical Element is shown.
- FIG. 2 shows four longitudinal sections, juxtaposed optical elements C, each having a common Light entrance side A have.
- Each individual optical element C has steadily curved side walls, each with a newly formed Close light exit side D.
- the optical element C can be either uniaxial linear as well as rotationally symmetric or biaxially or diagonally blended be formed.
- the curvature of the side walls of the optical element C is formed such that light rays on the light entrance side A from a Solid angle area B impinge, by way of total reflection at the side surfaces in the Be concentrated inside the optical element on the light exit side D.
- the light exit side D is provided with a coating E, which is the radiation either absorbed or reflected back into the entrance compartment B.
- the invention is based on the object, a device for light deflection and suppression for stationary use in a translucent Building facade for the targeted illumination of an interior with at least one translucent optical element, according to the preamble of claim 1 in such a way that a fürsicht Schemekeit by the linear or should consist of arrayed optical elements therethrough. Especially It applies a simple and inexpensive device for light suppression and redirecting the light.
- a device for light deflection and suppression for the stationary use in a translucent building façade for targeted Illumination of an interior space with at least two translucent optical Elements designed such that the optical elements are arranged in such a linear or arrayed manner next to each other, that the light exit sides of the individual optical elements from each other are spaced, and that in which between the light exit sides forming intermediate area a light-reflecting or at least partially light-absorbing agent is provided.
- the light-reflecting or at least partially or partially light-absorbing agent By providing the light-reflecting or at least partially or partially light-absorbing agent, not as in the case of the German patent application DE 196 13 222 A1 directly in the area of the light exit side, but in the Intermediate areas of the respective light exit sides of the linear or Be included arrayed optical elements is flat that light specifically faded out on the light entry side of the individual optical elements from the second solid angle range is incident.
- Light that however, within the first solid angle range to the respective Light entry side of the optical elements arrives, passes almost unhindered Light exit side on which it accordingly emerge from the optical element can. This ensures that the optical element at least on the surfaces the light exit side is completely transparent, provided that the Light entry side and exit side are flat and parallel.
- FIG. 1 shows a longitudinal section through four linearly arranged side by side optical elements C, whose light entry sides A each in a uniform Lie flat.
- the light entry sides A are opposite free Light exit sides D arranged, compared to the prior art no having light-absorbing layer. Rather, in the intermediate areas between the light exit sides D light-absorbing or reflective means, For example, in the form of apertures BL, the light provided by the sides Light entrance side to the aperture BL falls, absorb or in the light entry space reflect back again. In particular, this applies to those portions of light that are on the Light entry sides of the optical elements from the second solid angle range come to mind.
- FIG. 5 shows a further embodiment for a linear or array-shaped one Arrangement consisting of a plurality of optical elements C shown.
- the individual optical elements C have a uniform light entrance side A. and are with their respective light exit sides with a transparent Carrier substrate T connected.
- the preferably plate-shaped, optically transparent carrier substrate T, which is preferably integral with the optical Elements C is connected, facing away from the optical elements on its Side a flat, planar surface T1 on. Together with the likewise plan formed light entrance side A is at least in the region of the light exit sides the individual optical elements C the direct view through the optical Arrangement given.
- Air inclusions L provided if the arrangement is formed array-shaped.
- the Apertures BL themselves preferably have at their the light entry side facing Surface a reflective layer so that it is incident on it Sunlight is reflected back into the entrance half-space.
- the interior side facing visible surface N of the aperture BL individually be colored, so that on the one hand, the visual appeal of the entire optical arrangement is improved and, moreover, the see-through characteristics of can be improved inside out.
- the Passage area, on the optical elements of incident light in the interior is the transparent support structure T on its side facing the interior preferably formed with surface structures S according to FIG.
- the Surface structures S are able to do this through the light exit sides Carrier substrate T incidental light in the interior continue to lead, eg. for the purpose of targeted optical room lighting.
- Carrier structure T is provided with diaphragms BL, for example, as opaque Surface strips are formed, wherein the support structure T as a movable Element O is executed (see FIG. 7).
- the aperture areas BL in shape and size of the spaces between adapted to the individual light exit sides of the individual optical elements and correspond beyond the light exit sides D of the individual optical Elements C for example, by moving the element O by one Period of the angular range can be switched within the on the optical Element incident radiation is reflected, d. H. the transmission behavior of the optical element can by moving the aperture in the area of individual light exit sides of the individual optical elements are reversed.
- the appearance of the façade is from the outside strongly dependent on the viewing direction of the viewer.
- direct Solar radiation is the external effect of the facade within the Blanking range from the relative angle of incidence to the optical axis of each determined individual optical element.
- This effect can for example be used that not completely absorbent or opaque occupancy the panels BL in the interior a changeable with the position of the sun color effect the elements can be generated.
- the color temperature in the Interior set by the angular position of the elements to the sun.
- the Color change can also serve to correct the position of the elements Sun check or as a rule criterion for automatic control be used.
- the color design can be conscious as be used as a creative element that the internal and external effect of Facade shapes and a relation between viewing location, line of sight and generated external light conditions.
- linear or arrayed optical Form elements in principle, it is possible for the linear or arrayed optical Form elements as a horizontal or vertical lamella system, flat in Facades or in roofs, canopies and other roofing too integrate.
- the use in the interior and exterior, in the space of Double facades or the integration in the space between the panes of Insulating glazing is possible.
- FIG. 8 shows a further possible combination of the optical elements C.
- the formed according to Figure 1 element is connected to a further optical element C in mirror image arrangement as shown combined. Get in this way Light, on the one hand on the light entrance side A from the first solid angle area B falls into the interior of the optical arrangement, on the other hand over the Light entrance side A 'in the first Jardinwinkelbreich B' from the arrangement again.
- FIG. 9 shows a concrete application form of the invention Device for the interior lighting of an atrium shown.
- the direct To block radiation components in order to avoid overheating in the interior, and on the other hand enough diffuse light to let through lighting.
- the optical element By use of the inventively embodied optical element in the roof surface of the Atriums 2, this can be ensured by the optical element such is aligned that the occurring sun angles do not or at least lie outside the passband or the first solid angle range.
- the passing zenith light which consists of angular areas within the Passage area encounters the element is largely transmitted and occurs the light exit side in the area 4 diffuse.
- each optical Element with another optically transparent body, such as the Carrier structure T connected.
- the transmitted light should be redirected in a way that determined Lighting situations is adjusted.
- the light it is possible for the light to be detected using the method shown in FIG. 8 illustrated arrangement for illuminating the interior of the atrium according to FIG 9 incident on the optical elements in the passband, down through the transmitted optical arrangement of Figure 8, whereby the bottom of the atrium in Cone area 4 is illuminated more.
- the Carrier structure T has suitable deflection S, so the transmitted Redirected light so that it emerges at a shallower angle.
- FIG. 10 A further advantageous use of the inventively designed optical element is shown in FIG.
- Optical element C in a multiple linear arrangement an optical circuit board LE arranged.
- the light is through the optical PCB LE deflected by total reflection at their surfaces and guided.
- a reflective layer coated aperture BL can also those light components thrown back into the light guide plate LE, the total reflection angle exceed.
- the Apertures BL are not optically coupled to the surface of the light guide plate LE to the To get total reflection for shallower angles. On those surfaces where the optical elements with their light exit sides to the surface of Coupling circuit board LE, light can escape from the light guide targeted.
- the element can also be used without a light guide as Verblendungsraster by being placed directly in front of a light source.
- a light guide as Verblendungsraster by being placed directly in front of a light source.
- not only linear, but also especially 3d structures make sense.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Optical Elements Other Than Lenses (AREA)
- Planar Illumination Modules (AREA)
Description
- Figur 1
- Längsschnitt durch vier linear nebeneinander angeordnete optische Elemente,
- Figur 2
- Darstellung zum Stand der Technik,
- Figur 3
- Darstellung zum Stand der Technik,
- Figur 4
- schematische Darstellung zur Durchsicht,
- Figur 5
- optische Elemente mit transparentem Zusatzkörper,
- Figur 6
- optische Elemente mit optisch transparentem Zusatzkörper mit reliefartig ausgebildeten Strukturen,
- Figur 7
- optische Elemente mit bewegbarem Zusatzkörper,
- Figur 8
- spiegelbildliche Anordnung von optischen Elementen,
- Figur 9
- schematisierte Darstellung zur Beleuchtung des Innenraums eines Atriums sowie
- Figur 10
- optische Elemente in Kontakt zu einem lichtleitenden Körper.
Bei dieser Anwendung sind nicht nur lineare, sondern auch besonders 3d-Strukturen (rotationssymmetrisch, kreuzweise verschnitten) sinnvoll.
- A
- Lichteintrittsseite
- B
- erster Raumwinkelbereich = Durchlassbereich
- BL
- Blende
- C
- optisches Element
- D
- Lichtsaustrittsseite
- E
- Beschichtung
- F
- Fensterfassade
- L
- Lufteinschluss
- LE
- Lichtleiterplatte
- T
- Trägerplatte, Trägersubstrat
- T1
- Oberseite der Trägerplatte
- N
- Blendenoberfläche
- NO
- Flächennormale
- 1
- Gebäude
- 2
- Atrium
- 3
- Innenseite des Gebäudes
- 4
- zentraler Lichtkegel
- 5
- Seitenbereich
Claims (16)
- Vorrichtung zur Lichtumlenkung sowie -ausblendung für den stationären Einsatz bei einer transluzenten Gebäudefassade zur gezielten Beleuchtung eines Innenraumes mit wenigstens zwei transluzenten optischen Elementen C, die jeweils eine eben ausgebildete Lichteintrittsseite A aufweisen sowie eine Lichtaustrittsseite D vorsehen, die von einer ersten gekrümmten Grenzfläche sowie zumindest von einer zweiten Grenzfläche begrenzt ist, wobei die Krümmung der ersten Grenzfläche derart ausgebildet ist, dass Lichtstrahlen, die aus einem ersten Raumwinkelbereich B auf die Lichteintrittsseite A auftreffen und in das optische Element C einkoppeln im Wege der Totalreflexion an der ersten Grenzfläche auf den Bereich der zweiten Grenzfläche konzentriert werden und dass Lichtstrahlen, die aus einem zweiten Raumwinkelbereich auf die Lichteintrittsseitete A auftreffen und in das optische Element C einkoppeln durch die erste Grenzfläche aus dem optischen Element C austreten,
dadurch gekennzeichnet, dass die optischen Element C derart linear oder arrayförmig nebeneinander angeordnet sind, dass die Lichtaustrittsseite D der einzelnen optischen Element C voneinander beabstandet sind, und dass in dem sich zwischen den Lichtaustrittsseiten D ausbildenden Zwischenbereich ein lichtreflektierendes oder wenigstens partiell lichtabsorbierendes Mittel vorgesehen ist. - Vorrichtung nach Anspruch 1,
dadurch gekennzeichnet, dass das Mittel eine Blende BL ist. - Vorrichtung nach Anspruch 1 oder 2,
dadurch gekennzeichnet, dass das Mittel ein transluzentes Trägersubstrat T ist, auf dessen Oberseite in Form und Größe an den Zwischenbereich angepaßt wenigstens ein lichtreflektierender oder wenigstens ein partiell lichtabsorbierender Schichtbereich aufgetragen ist. - Vorrichtung nach Anspruch 3,
dadurch gekennzeichnet, dass das transluzente Trägersubstrat T einstückig mit den Lichtaustrittsflächen D verbunden ist. - Vorrichtung nach Anspruch 3 oder 4,
dadurch gekennzeichnet, dass das Trägersubstrat T eine den optischen Elementen C abgewandte Oberseite aufweist, die eben oder strukturiert ausgebildet ist. - Vorrichtung nach Anspruch 1,
dadurch gekennzeichnet, dass das Mittel ein transluzentes Flächenelement ist, das in Form und Größe an den Zwischenbereich angepaßt, wenigstens einen lichtreflektierenden oder wenigstens partiell lichtabsorbierenden Bereich aufweist, und dass das Flächenelement gegenüber der Lichtaustrittsflächen D der optischen Elemente C verschiebbar ist. - Vorrichtung nach Anspruch 6,
dadurch gekennzeichnet, dass die Form und Größe des Zwischenbereiches gleich der Form und Größe der Lichtaustrittsseiten D ist. - Vorrichtung nach Anspruch 6,
dadurch gekennzeichnet, dass die Form und Größe des Zwischenbereiches kleiner der Form und Größe der Lichtaustrittsseiten D ist. - Vorrichtung nach einem der Ansprüche 3 bis 5,
dadurch gekennzeichnet, dass der lichtreflektierender oder der wenigstens partiell lichtabsorbierende Schichtbereich eingefärbt ist. - Vorrichtung nach einem der Ansprüche 6 bis 9,
dadurch gekennzeichnet, dass der lichtreflektierende oder der wenigstens partiell lichtabsorbierende Bereich eingefärbt ist. - Vorrichtung nach Anspruch 9 oder 10,
dadurch gekennzeichnet, dass die Einfärbung graduell erfolgt. - Vorrichtung nach Anspruch 9 oder 10,
dadurch gekennzeichnet, dass die Einfärbung stufenweise, mit aus mehreren angrenzenden Farben erfolgt. - Verwendung der Vorrichtung nach einem der Ansprüche 1 bis 12 als Innenraumbeleuchtungsmittel, das derart in eine transluzente Gebäudefassade integriert ist, dass das direkte Sonnenlicht nicht in den ersten Raumwinkelbereich B, sondern lediglich aus dem zweiten Raumwinkelbereich auf die Lichteintrittsseite A einfällt.
- Vorrichtung nach einem der Ansprüche 1 bis 12,
dadurch gekennzeichnet, dass an den Lichtaustrittsseiten D der optischen Elemente C spiegelbildlich weitere optische Elemente C mit ihren jeweiligen Lichtaustrittsseiten D angeordnet sind. - Verwendung der Vorrichtung nach Anspruch 14 als Innenraumbeleuchtungsmittel, das derart in eine transluzente Gebäudefassade integriert ist, dass das in den ersten Raumwinkelbereich B auf die Lichteintrittsseite A der zur Sonne gerichteten optischen Elemente C einfallende Licht durch die Anordnung der optischen Elemente C hindurchtritt und aus den Lichteintrittsseiten A der der Sonne abgewandten optischen Elemente C in gleicher Weise innerhalb ihres ersten Raumwinkelbereiches B austritt.
- Vorrichtung nach einem der Ansprüche 1 bis 12,
dadurch gekennzeichnet, dass die Lichtaustrittsseiten D der optischen Elemente C optisch an eine Oberfläche eines lichtleitenden Körpers LE gekoppelt ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10053092 | 2000-10-26 | ||
DE10053092A DE10053092A1 (de) | 2000-10-26 | 2000-10-26 | Vorrichtung zur Lichtumlenkung sowie-ausblendung für den stationären Einsatz bei einer transluzenten Gebäudefassade zur gezielten Beleuchtung eines Innenraumes |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1201986A2 EP1201986A2 (de) | 2002-05-02 |
EP1201986A3 EP1201986A3 (de) | 2004-09-29 |
EP1201986B1 true EP1201986B1 (de) | 2005-12-28 |
Family
ID=7661127
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01118806A Expired - Lifetime EP1201986B1 (de) | 2000-10-26 | 2001-08-09 | Vorrichtung zur Lichtumlenkung sowie -ausblendung für den stationären Einsatz bei einer transluzenten Gebäudefassade zur gezielten Beleuchtung eines Innenraumes |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1201986B1 (de) |
AT (1) | ATE314611T1 (de) |
DE (2) | DE10053092A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102016221374B4 (de) * | 2016-10-28 | 2018-10-11 | Roto Frank Ag | Lichtführende Gebäudeeinbaueinrichtung sowie Gebäudefenstereinrichtung |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1178353A (fr) * | 1957-07-10 | 1959-05-06 | Saint Gobain | Feuilles, pavés, briques ou articles analogues en matière transparente, notamment en verre |
AU687052B2 (en) * | 1993-05-04 | 1998-02-19 | Peter James Milner | An optical component suitable for use in glazing |
DE19611060A1 (de) * | 1996-03-21 | 1997-09-25 | Innovative Glassysteme Gmbh & | Sonnen- und Blendschutzvorrichtung |
DE19613222A1 (de) * | 1996-04-02 | 1997-10-09 | Fraunhofer Ges Forschung | Stationäre Einrichtung zur Abschattung des direkten Sonnenlichts bei Verglasungen |
-
2000
- 2000-10-26 DE DE10053092A patent/DE10053092A1/de not_active Ceased
-
2001
- 2001-08-09 EP EP01118806A patent/EP1201986B1/de not_active Expired - Lifetime
- 2001-08-09 DE DE50108525T patent/DE50108525D1/de not_active Expired - Fee Related
- 2001-08-09 AT AT01118806T patent/ATE314611T1/de not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DE50108525D1 (de) | 2006-02-02 |
EP1201986A2 (de) | 2002-05-02 |
ATE314611T1 (de) | 2006-01-15 |
EP1201986A3 (de) | 2004-09-29 |
DE10053092A1 (de) | 2002-05-16 |
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