EP2116761B1 - Dispositif d'éclairage de façades et pulvérisateur de façades correspondant - Google Patents

Dispositif d'éclairage de façades et pulvérisateur de façades correspondant Download PDF

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Publication number
EP2116761B1
EP2116761B1 EP09006287A EP09006287A EP2116761B1 EP 2116761 B1 EP2116761 B1 EP 2116761B1 EP 09006287 A EP09006287 A EP 09006287A EP 09006287 A EP09006287 A EP 09006287A EP 2116761 B1 EP2116761 B1 EP 2116761B1
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EP
European Patent Office
Prior art keywords
facade
illuminance
spotlight
lighting apparatus
illuminated
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.)
Active
Application number
EP09006287A
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German (de)
English (en)
Other versions
EP2116761A1 (fr
Inventor
Christian Bartenbach
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.)
Bartenbach Holding GmbH
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Bartenbach Holding GmbH
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.)
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Publication date
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Priority to PL09006287T priority Critical patent/PL2116761T3/pl
Publication of EP2116761A1 publication Critical patent/EP2116761A1/fr
Application granted granted Critical
Publication of EP2116761B1 publication Critical patent/EP2116761B1/fr
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00—Refractors for light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/10—Outdoor lighting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/10—Outdoor lighting
    • F21W2131/107—Outdoor lighting of the exterior of buildings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the present invention relates to a facade lighting device with at least one row of facade radiators, each having a point-like light source, preferably in the form of an LED and are arranged side by side spaced from the facade.
  • facade spotlights which use an LED as the light source.
  • a plurality of such LEDs in the form of a light band can be arranged side by side to illuminate the facade over its entire width or at least a piece thereof.
  • Such light bands are arranged regularly spaced at the upper end of the facade or at the upper end of a facade piece to be illuminated a distance from the facade, so that they obliquely down towards the ground directed illuminate the facade of the building.
  • Such facade spotlight assemblies with LEDs are light and elegant. Since they can be designed small-sized, they hardly disturb the facade image. In addition, interesting optical effects can be achieved by the large number of radiators For example, differently colored LEDs may illuminate different portions of the facade differently. Likewise, it is possible in a simple manner to vary the illumination color in time. In addition, LEDs are easy to maintain and energy efficient.
  • the EP 18 50 061 A1 shows a facade radiator assembly with associated lens assembly, the individual radiators individually associated, hemispherical primary lenses and a common lens provided for all the lens plate as a secondary lens, which is designed in the manner of an extruded profile and extends across all radiators away.
  • the said lens plate is intended to bring about a certain homogenization of the illumination of the wall surface over its height.
  • the US 2007/0171631 shows a Wallswasher, in which the emitters no lens is connected upstream, but a reflector is assigned, by means of which the light is to be made uniform. Furthermore, the shows DE 20 2005 011 747 a wall washer with LEDs as light sources, a good color mixing of the different light colors of the LEDs to be achieved by means of a diffuser element. By means of a reflector, the light of the LEDs is reflected on a side wall, before the light rays hit the diffuser element, which is formed as a sandblasted glass plate.
  • the present invention seeks to provide an improved facade lighting device of the type mentioned, which avoids the disadvantages of the prior art and the latter develops in an advantageous manner.
  • a high-intensity facade lighting with high uniformity and low glare is to be achieved.
  • the light source associated optics instead of a rotationally symmetrical beam of light intensity distribution of the punctiform light source to give an asymmetry to illuminate a rectangular facade piece as evenly as possible on the facade.
  • the plurality of light sources can complement each other much better, since on the façade, as it were, rectangular, illuminated façade pieces can be juxtaposed or evenly overlapped.
  • the facade radiators can be aligned substantially parallel to each other, ie it is not necessary to achieve the desired uniformity by tilting the radiator axes.
  • the facade emitters each have a free-form lens which has an asymmetry such that each facade emitter illuminates an approximately rectangular facade piece and generates an illuminance distribution which, viewed along vertical lines over the entire façade unit height, illuminance ratio of minimum illuminance E min to maximum illuminance E max of 1:10, that is 0.1 or greater.
  • E min minimum illuminance
  • E max maximum illuminance
  • the freeform lenses of the facade spotlights are advantageously asymmetrically designed in a further development of the invention such that the illumination intensity distribution of a respective facade spotlight, viewed individually, has approximately pear-shaped isoluxes on the facade piece illuminated by it. Lines along which the illuminance is the same. The course of these Isoluxen clearly determines the free-form surface of the lens, which is associated with the light source. About the geometric conditions of the facade radiator assembly and the free-form surface of the lens, a specific Isoluxensent is generated, which characterizes the illumination intensity distribution on the illuminated facade piece, so conversely from the course of Isoluxen the free-form lens is uniquely determined in terms of their geometry.
  • said pear-shaped Isoluxen can be fundamentally different contoured.
  • the invention provides that said pear-shaped isoluxes of the façade piece illuminated by a facade spotlight have a ratio of height to width of at least 2: 1, wherein said ratio is advantageously also 3: 1 or 4: 1 can be. Due to the generally elongated, slim design of the isoluxes, it is possible to achieve an illuminance that is at least approximately constant over the height of the facade.
  • the asymmetry of the freeform lenses is advantageously designed such that the widest point of the isoluxes slips further down, the lower the lux number characterized by the respective isolux becomes.
  • the free-form lens is asymmetrically designed such that the illumination intensity distribution on the facade piece illuminated by the respective facade spotlight possesses isoluxes whose greatest width lies with decreasing lux number in progressively lower facade height.
  • the widest part of the pear shape of the Isoluxe slides down, the lower the illuminance determined by the particular Isolux line.
  • the Isoluxenject is such that higher lux numbers indicating isoluxes are located further inside, which are surrounded by ever-lower Isoluxen onion-cup shaped.
  • the free-form lenses are shaped in such a way that the facade spotlights have a longitudinal suppression and the light intensity more or less goes to zero parallel to the facade.
  • the longitudinal suppression is in particular such that in a façade-parallel plane that goes through the facade spotlight row or has the same distance from the façade as the facade spotlights, the light intensity in a ground-level area approaches zero. Only if you approach the façade more or less directly and look up into the row of facades, a glare effect can occur. However, as soon as a passerby steps away from the façade only a small distance - as is usual in normal foot traffic on a pavement -, the glare-free effect achieves a glare-free effect.
  • the suppression on the individual façade spotlights can be designed differently.
  • the facade spotlights viewed in a vertical plane perpendicular to the facade can have a Ausblend Scheme of more than 270 °, preferably about 270 ° to 280 °, wherein the non-hidden area at the upper end of the illuminated facade piece about under an angle of 90 ° is directed to the facade, while at the lower end of the illuminated facade piece of the non-hidden area with the facade can include an angle of preferably 3 ° to 10 °.
  • the facia spotlight may have a masking area of more than 240 °, preferably about 240 ° to 270 °, which may depend on the LED spacing and the desired lighting effects, such as color blends.
  • the facade spotlights can be arranged in an approximately horizontal row at the upper end of the facade piece to be illuminated, the facade spotlights of the facade can be arranged at a distance of about 0.5 to 2 m.
  • a facade spotlight row can advantageously be arranged at a distance of about 1 m in front of the facade and illuminate the facade to the ground, ie about 15 m high.
  • the facade radiators arranged closer to the edge of a façade surface are advantageously designed with regard to their emission angles or skimming spaces in such a way as to prevent outward blasting beyond the lateral end of the facade.
  • the façade radiators arranged towards the edge of the façade are designed in such a way that the façade piece illuminated by them terminates laterally approximately flush with the vertical façade edge.
  • the illuminated space produced by the facade radiator strip ie the entirety of the facade radiators, terminates flush with the right and left edge of the façade, or possibly even before, so that in each case it is ensured that no glare occurs on the adjoining building façade.
  • the façade spotlights do not radiate beyond the edges of their associated façade surface.
  • the facade lighting device 1 shown in the figures comprises, in front of each facade 2, 3 of the building 4, a light band 5 which is arranged substantially horizontally approximately parallel to the façade, approximately at the upper end of the respective façade 2 and 3 Facade is wide or slightly shorter.
  • Each light band 5 in this case comprises a plurality of facade radiators 6, each comprising a punctiform light source in the form of an LED 7 and a set in front of the LED 7 freeform lens 8, as this Fig. 7 shows.
  • the LEDs 7 can in this case be mounted pivotably about a horizontal axis on a light source carrier 9, which can be advantageously designed as an LED board, so that the emission angle of the respective facade radiator 6 can be adjusted relative to the facade 2 or 3.
  • the free-form lens 8 is pivotally mounted together with the LED 7.
  • the light source together with the optics in the form of free-form lens 8 can advantageously be arranged in an approximately tubular housing 10, which has a slot-shaped emission opening, which is closed in the illustrated embodiment with a curved cover glass 11.
  • the light band 5 is arranged at a facade height of 15 m at a distance of about 1 m in front of the facade.
  • the distance between the LEDs 7 in the light band 5 from each other can be chosen fundamentally different, advantageously a more or less seamless stringing as many LEDs is provided as this high brightness can be achieved on the facade with LEDs of low strength.
  • the LEDs each individually radiate no rotationally symmetric beam of light. Rather, an approximately rectangular facade piece 12 is illuminated by the asymmetrical free-form lens 8 of each LED 7.
  • the free-form lens 8 is designed such that an approximately 15 m high and 3 m wide facade piece 12 of a single LED 7 according to Fig. 4 is illuminated.
  • the beam angle ⁇ is provided, which is approximately 87 ° in the illustrated embodiment and is oriented such that the upper edge of the Ausstrahlsektors is directed approximately perpendicular to the facade, while at the lower edge between the facade and the radiation area edge is provided an angle of about 3 °, cf. Fig.
  • a blanking space of 360 ° - ⁇ is provided, cf. Fig. 3 .
  • a region with the angle ⁇ is illuminated, cf. Fig. 4 , which may vary depending on the facade spacing and LED density and may be about 2 x 20 ° in an advantageous embodiment. Accordingly, a range of 360 ° - ⁇ is hidden in said horizontal plane.
  • Fig. 5 shows, illuminated by an LED 7 rectangular facade pieces 12 are superimposed, ie along a vertical strip overlap the lit by one LED facade pieces.
  • the LEDs are at a distance from each other and at a distance of b from the facade arranged as the FIGS. 5 and 6 show, the illuminated facade pieces 12 overlap each other in a strip, since the width of the illuminated facade pieces 12 is greater than the distance a.
  • the said overlap strip is here however quite narrow.
  • Fig. 3 shows, the illuminance of the light band 5 over the entire facade height only a very small variation.
  • the minimum illuminance according to Fig. 3 occurs at the lower end of the facade, stands to the maximum illuminance E max , in the range of about one-quarter to three-quarters of the facade height, in the drawn version according to Fig. 3 occurs at about three quarters of the facade height, in a ratio of 1:10 or more, ie preferably 1: 5 or 1: 2.5 or even larger.
  • Fig. 1 shows, it has the Abstrahlraum the light band 5 lateral demolition edges, which are advantageously approximately flush with the edges of the facade, so that glare around the corner of the building 4 around is excluded.
  • FIGS. 8 to 13 show different distributions of illuminance.
  • Fig. 8 the course of the illuminance above the façade height is shown.
  • the facade height "0" which corresponds to the height of the light band 5
  • a relative illuminance of about 60% which then rises up to about 6 m below the light band 5 out to about 100%, ie there reaches its maximum value
  • the lux number then drops again, with 10% of the maximum lux strength remaining on the floor.
  • the ratio of minimum illuminance E min to maximum illuminance E max is defined as 1:10.
  • the free-form lens 8 of a single facade radiator or a single LED 7 is defined by an illuminance distribution in a further development of the invention, as they Fig. 9 shows.
  • the named Fig. 9 shows the isoluxes, ie the lines along which the illuminance in the facade piece 12 illuminated by an LED is the same. It is on the vertical axis of the Fig. 9 the height of the facade, more precisely, the height is plotted under the respective LED, while the horizontal axis indicates the width of the illuminated facade piece.
  • the Isoluxen have a total of approximately pear-shaped contouring.
  • the LED point 7 directly opposite façade point is, so to speak, the center of said Isoluxen.
  • the isoluxes initially expand at an angle of about 10 ° to 20 °, with the highest illuminance indicating Isoluxe is in the center and is surrounded onionskugelförmig of Isoluxen, specify the ever lower illuminance.
  • the ratio of the longitudinal extent of the isoluxes in the vertical direction to the width of the isoluxes is more than 2: 1, ie the isoluxes are overall quite long and slender. Characteristic here is next to the aforementioned pear shape and with decreasing illuminance deeper and deeper moving point of maximum width. The lower the illuminance that characterizes an isolux, the longer and the wider the isolux will be, with the greatest latitude spot being always lower, cf. Fig. 9 ,
  • Corresponding representations include the FIGS. 10 to 13 , where the Figures 10 and 11 reflect an illuminance ratio of minimum illuminance E min to maximum illuminance E max of 1: 2.5, while the FIGS. 12 and 13 reflect an illuminance ratio of 1: 1.1.
  • Fig. 10 is at the height of the light band 5, an illuminance of about 60 or 65 is provided. Up to a height of about 6 to 7 m below the light band 5, the illuminance increases to about 90. Down to the ground, the illuminance then continuously decreases again to about 36.
  • the associated Isoluxenstory of the illuminated by the LED facade piece 12 shows Fig. 11 , in which in turn the isoluxes are registered relative to the height and width of the illuminated façade piece and basically have a similar course as in the illustration according to FIG Fig. 9 possess, but in total only a narrower façade piece is illuminated. As Fig. 11 shows, only a facade piece of about +/- 2 m is illuminated, which is of course still in height 15 m.
  • Fig. 12 the illuminance distribution over the facade height is shown for an illuminance ratio of 1: 1.1.
  • the illuminance varies across the entire height of the façade only slightly between about 70 and 77.
  • the associated Isoluxensent the illuminated facade piece 12 is in Fig. 13 represents one of the Fig. 11 comparable course of Isoluxen is given. These have roughly speaking pear shape, whereby in comparison to the ratio 1:10, the in Fig. 9 is shown, the Isoluxen are significantly slimmer.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Claims (12)

  1. Dispositif d'éclairage de façade doté d'au moins une série de projecteurs de façade (6), qui présentent chacun une source lumineuse ponctuelle, de préférence sous la forme d'une DEL (7), et disposés les uns à côté des autres de manière espacée par rapport à la façade (2, 3), caractérisé en ce que les projecteurs de façade (6) présentent chacun une lentille de forme libre (8), qui possède une asymétrie telle que chaque projecteur de façade (6) éclaire une pièce de façade (12) approximativement rectangulaire et en ce que les projecteurs de façade (6) réalisent une répartition de l'intensité lumineuse, qui, le long de lignes verticales sur la hauteur complète de la pièce de façade, possède un rapport d'intensité lumineuse d'une intensité lumineuse minimale Emin par rapport à une intensité lumineuse maximale Emax de 1:10, c'est-à-dire de 0,1 ou supérieure.
  2. Dispositif d'éclairage de façade selon la revendication précédente, le rapport d'intensité lumineuse Emin par rapport à Emax étant de 1:2,5 ou supérieur.
  3. Dispositif d'éclairage de façade selon une quelconque des revendications précédentes, la lentille de forme libre (8) étant formée de manière asymétrique de sorte que la répartition de l'intensité lumineuse sur la pièce de façade éclairée (12) possède des isophotes piriformes.
  4. Dispositif d'éclairage de façade selon la revendication précédente, les isophotes piriformes possédant un rapport de la hauteur à la largeur d'au moins 2:1.
  5. Dispositif d'éclairage de façade selon une quelconque des deux revendications précédentes, les lentilles de forme libre (8) étant formées de manière asymétrique de sorte que la répartition de l'intensité lumineuse sur la pièce de façade éclairée (12) possède des isophotes, dont la plus grande largeur se trouve à une hauteur de façade d'autant plus basse que l'intensité lumineuse reproduite par les isophotes respectives est faible.
  6. Dispositif d'éclairage de façade selon une quelconque des revendications précédentes, la pièce de façade éclairée (12) s'étendant pour l'essentiel du sol jusqu'à la hauteur de la série de projecteurs de façade.
  7. Dispositif d'éclairage de façade selon une quelconque des revendications précédentes, la lentille de forme libre (8) étant confectionnée de sorte que le projecteur de façade (6) possède une diaphragmation longitudinale parallèlement à la façade (2, 3) et/ou l'intensité lumineuse moyennant zéro dans une zone proche du sol dans un plan parallèle à la façade, qui passe à travers la série de projecteurs de façade.
  8. Dispositif d'éclairage de façade selon une quelconque des revendications précédentes, les projecteurs de façade (6) possédant chacun, en considérant un plan vertical perpendiculaire à la façade (2, 3), un angle diaphragmant (360° - α) supérieur à 270 °, de préférence entre 270 ° et 280 °, et présentant dans un plan horizontal perpendiculaire à la façade (2, 3), un angle diaphragmant (360 ° - β) supérieur à 240 °, de préférence entre 240 ° et 270 °.
  9. Dispositif d'éclairage de façade selon une quelconque des revendications précédentes, la pièce de façade éclairée (12) possédant un bord supérieur approximativement à la hauteur de la série de projecteurs de façade et un bord inférieur approximativement à la hauteur du sol et/ou approximativement une partie au-dessous de la série de projecteurs de façade, qui correspond du 5e au 20e de l'espacement de la série de projecteurs de façade par rapport à la façade (2, 3).
  10. Dispositif d'éclairage de façade selon une quelconque des revendications précédentes, les pièces de façade (12) éclairées chacune par un projecteur de façade (6) se chevauchant entre elles.
  11. Dispositif d'éclairage de façade selon une quelconque des revendications précédentes, la largeur d'une pièce de façade (12) éclairée par un projecteur de façade (6) s'élèvant à moins de 50 % de la hauteur de la pièce de façade éclairée (12).
  12. Projecteur de façade destiné à un dispositif d'éclairage de façade (1) selon une quelconque des revendications précédentes, avec une source lumineuse ponctuelle, de préférence sous la forme d'une DEL (7) ainsi qu'une lentille de forme libre (8) affectée à la source lumineuse, qui possède une asymétrie de sorte que la source lumineuse éclaire une pièce de façade (12) approximativement rectangulaire, et que sur celle-ci soit produite une répartition de l'intensité lumineuse, qui, le long de lignes parallèles au plus long axe principal du rectangle en considérant la longueur totale du rectangle, possède un rapport d'intensité lumineuse d'une intensité lumineuse minimale Emin par rapport à une intensité lumineuse maximale Emax de 1:10, c'est-à-dire de 0,1 ou supérieure.
EP09006287A 2008-05-08 2009-05-08 Dispositif d'éclairage de façades et pulvérisateur de façades correspondant Active EP2116761B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL09006287T PL2116761T3 (pl) 2008-05-08 2009-05-08 Urządzenie do oświetlania elewacji i służący do tego oświetlacz elewacyjny

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008022738A DE102008022738A1 (de) 2008-05-08 2008-05-08 Fassadenbeleuchtungsvorrichtung sowie Fassadenstrahler hierfür

Publications (2)

Publication Number Publication Date
EP2116761A1 EP2116761A1 (fr) 2009-11-11
EP2116761B1 true EP2116761B1 (fr) 2011-10-05

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EP09006287A Active EP2116761B1 (fr) 2008-05-08 2009-05-08 Dispositif d'éclairage de façades et pulvérisateur de façades correspondant

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EP (1) EP2116761B1 (fr)
AT (1) ATE527493T1 (fr)
DE (1) DE102008022738A1 (fr)
ES (1) ES2372356T3 (fr)
PL (1) PL2116761T3 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010006248B3 (de) * 2010-01-28 2011-07-14 Franz Sill GmbH, 10969 LED-Fassadenstrahler
ES2644564T3 (es) 2012-04-27 2017-11-29 Schreder Mejoras en fuentes de luz multicolor o relacionadas con estas
DE102012015394A1 (de) * 2012-08-03 2014-02-06 Bartenbach Holding Gmbh Fassaden- und/oder Wandbeleuchtungsvorrichtung
EP2787271A1 (fr) * 2013-04-02 2014-10-08 Dedo Weigert Film GmbH Dispositif d'éclairage à rayonnement asymétrique
EP3090203A1 (fr) 2013-11-20 2016-11-09 Philips Lighting Holding B.V. Procédé et appareil pour l'éclairage uniforme d'une surface
CN111473288B (zh) * 2020-04-16 2021-05-14 东莞市佰特照明科技有限公司 一种光影流动式led洗墙灯

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4941072A (en) * 1988-04-08 1990-07-10 Sanyo Electric Co., Ltd. Linear light source
DE10013056B4 (de) * 2000-03-19 2017-09-28 Osram Opto Semiconductors Gmbh Beleuchtungsanordnung
ITMI20050181U1 (it) * 2005-05-16 2006-11-17 Guzzini Illuminazione S P A I Dispositivo di illuminazione a distribuzione asimmetrica
DE202005011747U1 (de) 2005-07-22 2006-11-30 Erco Leuchten Gmbh Leuchte
US20070171631A1 (en) 2006-01-25 2007-07-26 Lsi Graphic Solutions Plus LED cove lighting for exterior fascia
DE102006018603B3 (de) 2006-04-21 2007-12-27 Paul Heinrich Neuhorst Leuchte

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PL2116761T3 (pl) 2012-03-30
DE102008022738A1 (de) 2009-11-12
EP2116761A1 (fr) 2009-11-11
ATE527493T1 (de) 2011-10-15
ES2372356T3 (es) 2012-01-19

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