EP2886950B1 - Light - Google Patents
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- Publication number
- EP2886950B1 EP2886950B1 EP14198436.9A EP14198436A EP2886950B1 EP 2886950 B1 EP2886950 B1 EP 2886950B1 EP 14198436 A EP14198436 A EP 14198436A EP 2886950 B1 EP2886950 B1 EP 2886950B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- light
- housing
- light according
- support elements
- exit opening
- 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.)
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- 239000000463 material Substances 0.000 claims description 14
- 230000003287 optical effect Effects 0.000 claims description 11
- 239000004744 fabric Substances 0.000 claims description 5
- 238000000149 argon plasma sintering Methods 0.000 claims description 3
- 230000035699 permeability Effects 0.000 claims 2
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical compound [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 claims 1
- 238000001816 cooling Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 238000009413 insulation Methods 0.000 description 3
- 238000009827 uniform distribution Methods 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000036651 mood Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
- F21S8/02—Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S19/00—Lighting devices or systems employing combinations of electric and non-electric light sources; Replacing or exchanging electric light sources with non-electric light sources or vice versa
- F21S19/005—Combining sunlight and electric light sources for indoor illumination
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- 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
- F21V15/00—Protecting lighting devices from damage
- F21V15/01—Housings, e.g. material or assembling of housing parts
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- 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
- F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
- F21V33/006—General building constructions or finishing work for buildings, e.g. roofs, gutters, stairs or floors; Garden equipment; Sunshades or parasols
-
- 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
- F21V1/00—Shades for light sources, i.e. lampshades for table, floor, wall or ceiling lamps
- F21V1/14—Covers for frames; Frameless shades
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- 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
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
- F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
- F21V29/745—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades the fins or blades being planar and inclined with respect to the joining surface from which the fins or blades extend
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- 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
- F21V3/00—Globes; Bowls; Cover glasses
- F21V3/04—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings
- F21V3/06—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material
-
- 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
- F21V5/007—Array of lenses or refractors for a cluster of light sources, e.g. for arrangement of multiple light sources in one plane
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- 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
- F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
- F21Y2103/10—Elongate light sources, e.g. fluorescent tubes comprising a linear array of point-like light-generating elements
-
- 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 luminaire according to the preamble of claim 1, which has a housing which defines a light exit opening, wherein light sources are arranged in the housing.
- the artificial light output to be adapted to the natural daylight in a particularly elegant manner or complement the natural daylight.
- Daylight-dependent lighting controls have long been known in particular when illuminating larger buildings or building complexes. Controlling the artificial light depending on the incident from outside daylight not only leads to a more pleasant lighting situation, which improves the so-called indoor climate, but also serves to save energy. The fact that the artificial light is switched on only when the natural daylight does not provide sufficient brightness, the energy consumption of a lighting system can be significantly reduced.
- the daylight usually falls on windows in a room to be illuminated, the lights, which are responsible for the complementary artificial light, then arranged, for example, on the ceiling of the room or are arranged distributed as floor lamps within the room.
- a light incidence of daylight is sometimes even when in the ceiling area windows or glazed or generally translucent structures are arranged.
- the luminaires responsible for the artificial light are then in turn arranged adjacent to these translucent structures on opaque ceiling areas.
- a luminaire according to the subject-matter of claim 1 is known.
- a luminaire is to be made available, which enables a coordinated illumination of a room both by daylight and by artificial light.
- the concept according to the invention is based on the idea of additionally using the light exit opening of the luminaire, which is provided for the delivery of the artificial light, as the light exit surface for the natural daylight. That is, both types of light are emitted over the same area, resulting in a particularly harmonious combination of natural light and artificial light.
- This combination of the two types of light is achieved in that the housing of the lamp is also open or translucent designed on the opposite rear side of the light exit opening, so that the natural daylight, which occurs from above or from the back of the lamp, through the housing is guided and then leaves this via the light exit opening.
- a luminaire with a housing which defines a light exit opening and arranged in the housing bulbs proposed, according to the invention, the housing at the opposite side of the light exit opening is at least partially transparent or open and the arrangement of the light source within the housing so is that on the back into the housing entering light can leave this through the light exit opening.
- the lighting means are arranged on a plurality of elongated carrier elements which extend substantially parallel and at a distance from each other through the housing. In the intermediate regions between the support elements additional optical elements for influencing the passing through (day) light are arranged.
- the support elements are preferably also the storage of these optical elements.
- the solution according to the invention makes it possible, with the aid of such luminaires, to fill out a ceiling area of a building or a room with so-called light tiles, through which on the one hand the natural daylight can enter the room and, on the other hand, where appropriate also artificial light is emitted.
- the previous subdivision between windows or glass fronts, through which the daylight is incident, and separately arranged lights omitted so what leads to an interesting appearance of the room as a whole.
- the lights can also be used for other purposes such as sound attenuation or the like due to the fact that they can occupy very large areas.
- additional optical elements for influencing the passing through (day) light then appears even in a situation in which is given by the light only daylight, the light exit surface as uniformly bright.
- the daylight can pass and ultimately be delivered through the light exit opening.
- the housing of the lamp according to the invention is like a frame and accordingly completely open to the rear.
- the housing is preferably rectangular, in particular square shaped, in this regard, of course, there is no restriction and other forms would be conceivable.
- the lighting means may be formed in particular by LEDs.
- the support elements for the light sources may be formed by profile parts, in particular aluminum profile parts, which are each attached with their front ends to the housing.
- the profile parts can then be web-like and initially have a receiving area for holding LED boards. From this receiving area, a web region can then extend to the rear, which is preferably designed in the form of a heat sink, that is to say has a plurality of side arms, by means of which the surface is enlarged and thus the heat exchange with the surrounding air is optimized.
- the carrier elements can be used simultaneously for holding primary optics for the LEDs, these primary optics are designed to support a uniform light output of the artificial light.
- the optical elements may, for example, be formed by elongated plates which have a structure in the form of prisms or the like, by means of which a uniform distribution of the daylight is achieved.
- the primary optics for the illuminants have a comparable function, so that the light exit surface of the luminaire is brightened up as uniformly and homogeneously as possible both by the daylight and by the artificial light.
- the lamp according to the invention is preferably realized as a large-area light, which can then also be used for other purposes to improve the indoor climate.
- the luminaire has a translucent cover in the region of the light exit opening, the cover having a frame which is covered with at least two translucent materials which are spaced apart from one another in the light emission direction.
- the cover has a frame which is covered with at least two translucent materials which are spaced apart from one another in the light emission direction.
- this special cover is achieved in particular when the two translucent materials have a different sound transmission.
- the light-transmissive material facing the housing has a lower sound transmission, whereas the sound transmission of the more distant clothing, which ultimately forms the light-emitting surface of the luminaire, is significantly higher.
- the sound from the cover is no longer reflected but penetrates into the space between the two materials, with the result that the desired sound insulation is achieved.
- the two materials may in particular be films or fabrics.
- a square, generally provided with the reference numeral 100 lamp is shown in the figures. It is a luminaire, which is usually arranged below a translucent ceiling structure of a building, through which the daylight in the building or in the room to be illuminated can come up. It is provided with the help of several such lamps 100 to completely fill a larger area, so that on the arrangement thus formed both the daylight and the artificial light falling into the room.
- the illustrated square shape is provided for the lamp 100, in this regard, of course, there are no restrictions. In general, however, it will be relatively large lights, for example, have an edge length of 1 m or more.
- the lamp is slightly stepped and has an upper housing part 10, on the underside of a cover 50 is additionally arranged.
- the cover 50 is designed slightly larger than the housing 10 in terms of their dimensions, in which case when joining several lamp 100, the covers abut each other laterally and on the housing 10 corresponding fastening means for mounting the lamp 100 can be attached.
- the central idea of the luminaire 100 according to the invention is the sectional view of FIG. 3 removable. It can be seen that the housing 10 is not - as normally usual - has a back, substantially closed bottom surface on which the assembly of the various components of the lamp 100 is carried out. Instead, the housing 10 is formed like a frame and accordingly has on its rear side an almost over the entire width extending opening 11. This opening 11 could optionally be covered by a light-transmitting element, but it is preferably provided that no corresponding cover is used, but the lamp 100 is actually open to the rear.
- the bottom of the housing 10 defines a light exit opening 12 through which the light is emitted. In the present case, as already indicated, the light output takes place via an additional cover 50, which is arranged below the housing 10 and whose configuration will be explained in more detail below.
- LEDs 21 are provided in the present case, which, as in FIG. 4 are arranged on elongated boards 20 are arranged.
- the holder of the LED boards 20 takes place with the aid of a plurality of profile parts 15, which run parallel to each other through the lamp housing 10 and attached respectively at their ends to the frame-like housing 10, for example, with a slightly raised web 13 of the housing wall are screwed.
- operating devices 14 are also arranged for the power supply of the lighting means.
- the profile parts 15 are formed in particular by web-like aluminum profiles, which according to the representation of FIG. 4 have on their side facing the LEDs 21 a receiving area 16 for supporting the LED boards 20. From this receiving region 16 extends to the rear, so in the case of mounting upwards a web-like region 17, which has a plurality of laterally branching arms 18. As a result, the profile element 15 forms a heat sink, over which during the operation of the LEDs 21 occurring heat can be dissipated efficiently to the environment. This heat dissipation is thereby supported that, as already mentioned above, the back of the lamp 100 is preferably completely open.
- This primary optics 22 consists of a plastic part made of translucent material, which is triangular or wedge-shaped in cross section.
- elongated prisms or scattering structures 23 are formed through which a uniform distribution of the LED light is achieved. This prevents the individual LED rows from appearing as brightly lit areas when the artificial light is activated.
- the fastening of the primary optics 22 to the carrier elements 15 takes place with the aid of two arms 24 provided on the rear side, which engage in corresponding guide tracks 19 on the profile part 15.
- the cover in this case has a peripheral frame 51, which is fastened by means of a screw 52 on the underside of the lamp housing 10.
- the frame 51 serves to hold two so-called coverings 53 and 55, which are formed by films or fabric.
- these fabrics consist of a slightly flexible material, which allows a clamping in the frame structure 51 of the cover 50. This takes place, for example, with piping provided in the edge region of the coverings 53, 55, which can be hooked into corresponding channels of the profile frame 51.
- both coverings 53 and 55 have a light-scattering effect, so that an extremely homogeneous light output over the entire surface is achieved by means of this two-fold additional control.
- the clothing 53 and 55 are designed such that they additionally cause a sound insulation. This can be promoted in particular by the fact that the outer or lower clothing 55 is relatively well sound-permeable whereas the inner clothing 53 facing the housing 10 has a lower sound transmission. Accordingly, sound occurring from the outside or from the bottom onto the surface can penetrate into the intermediate space between the two coverings 53, 55, but is held captive here, so to speak, and accordingly no longer reflected back. In this way, the lamp also contributes to the improvement of the indoor climate, but where appropriate, the light exit area of the lamp 100 could also be designed otherwise.
- FIG. 5a first shows the case that over the lamp daylight, which falls from the top of the lamp 100, is discharged. It can be seen that the rays entering via the open housing rear side are scattered by the optical elements 25, so that a uniform, homogeneous light output is achieved, which is additionally supported by the coverings 53 and 55 of the cover 50. Primarily responsible for the uniform delivery of daylight, however, are the optical elements 25. The mode of action is so good that the support elements 15 with the light sources are not or almost barely recognizable as dark stripes in the lamp.
- both daylight and artificial light can actually be emitted with the luminaire 100 according to the invention, which leads to an extremely pleasant lighting situation.
- White light LEDs are preferably used as light sources for the artificial light. However, it would also be conceivable that possibly a small part of the LEDs also emits colored light, which is then used to give the artificial light a certain color mood.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Description
Die vorliegende Erfindung betrifft eine Leuchte gemäß dem Oberbegriff des Anspruchs 1, welche ein Gehäuse aufweist, das eine Lichtaustrittsöffnung definiert, wobei in dem Gehäuse Leuchtmittel angeordnet sind. Insbesondere soll mit Hilfe der erfindungsgemäßen Leuchte die künstliche Lichtabgabe in besonders eleganter Weise auf das natürliche Tageslicht abgestimmt werden bzw. das natürliche Tageslicht ergänzen.The present invention relates to a luminaire according to the preamble of claim 1, which has a housing which defines a light exit opening, wherein light sources are arranged in the housing. In particular, with the help of the lamp according to the invention, the artificial light output to be adapted to the natural daylight in a particularly elegant manner or complement the natural daylight.
Tageslichtabhängige Beleuchtungssteuerungen sind insbesondere beim Beleuchten größerer Gebäude oder Gebäudekomplexe seit langem bekannt. Eine Steuerung des Kunstlichts in Abhängigkeit von dem von außen einfallenden Tageslicht führt nicht nur zu einer angenehmeren Beleuchtungssituation, die das so genannte Raumklima verbessert, sondern dient auch der Energieeinsparung. Dadurch, dass das künstliche Licht nur dann zugeschaltet wird, wenn das natürliche Tageslicht für keine ausreichende Helligkeit sorgt, kann der Energieverbrauch eines Beleuchtungssystems deutlich reduziert werden.Daylight-dependent lighting controls have long been known in particular when illuminating larger buildings or building complexes. Controlling the artificial light depending on the incident from outside daylight not only leads to a more pleasant lighting situation, which improves the so-called indoor climate, but also serves to save energy. The fact that the artificial light is switched on only when the natural daylight does not provide sufficient brightness, the energy consumption of a lighting system can be significantly reduced.
Das Tageslicht fällt üblicherweise über Fenster in einen zu beleuchtenden Raum ein, wobei die Leuchten, welche für das ergänzende Kunstlicht verantwortlich sind, dann beispielsweise an der Decke des Raums angeordnet beziehungsweise befestigt sind oder als Stehleuchten innerhalb des Raums verteilt angeordnet werden. Ein Lichteinfall des Tageslichts liegt manchmal auch dann vor, wenn im Deckenbereich Fenster oder verglaste beziehungsweise allgemein lichtdurchlässige Strukturen angeordnet sind. Die für das Kunstlicht verantwortlichen Leuchten sind dann allerdings wiederum benachbart zu diesen lichtdurchlässigen Strukturen an lichtundurchlässigen Deckenbereichen angeordnet.The daylight usually falls on windows in a room to be illuminated, the lights, which are responsible for the complementary artificial light, then arranged, for example, on the ceiling of the room or are arranged distributed as floor lamps within the room. A light incidence of daylight is sometimes even when in the ceiling area windows or glazed or generally translucent structures are arranged. However, the luminaires responsible for the artificial light are then in turn arranged adjacent to these translucent structures on opaque ceiling areas.
Aus der
Aus der
Die Aufgabe wird durch eine Leuchte, welche die Merkmale des Anspruchs 1 aufweist, gelöst. Vorteilhafte Weiterbildungen der Erfindung sind Gegenstand der abhängigen Ansprüche.The object is achieved by a luminaire having the features of claim 1. Advantageous developments of the invention are the subject of the dependent claims.
Dem erfindungsgemäßen Konzept liegt der Gedanke zugrunde, die Lichtaustrittsöffnung der Leuchte, welche für die Abgabe des Kunstlichts vorgesehen ist, zusätzlich auch als Lichtaustrittsfläche für das natürliche Tageslicht zu verwenden. Das heißt, beide Lichtarten werden über die gleiche Fläche abgegeben, was zu einer besonders harmonischen Kombination zwischen natürlichem Licht und Kunstlicht führt. Diese Zusammenführung beider Lichtarten wird dabei dadurch erreicht, dass das Gehäuse der Leuchte auch an der der Lichtaustrittsöffnung gegenüberliegenden Rückseite offen oder lichtdurchlässig gestaltet ist, sodass das natürliche Tageslicht, welches von oberhalb bzw. von der Rückseite her auf die Leuchte auftritt, durch das Gehäuse hindurch geführt wird und dieses dann über die Lichtaustrittsöffnung verlässt.The concept according to the invention is based on the idea of additionally using the light exit opening of the luminaire, which is provided for the delivery of the artificial light, as the light exit surface for the natural daylight. That is, both types of light are emitted over the same area, resulting in a particularly harmonious combination of natural light and artificial light. This combination of the two types of light is achieved in that the housing of the lamp is also open or translucent designed on the opposite rear side of the light exit opening, so that the natural daylight, which occurs from above or from the back of the lamp, through the housing is guided and then leaves this via the light exit opening.
Gemäß der vorliegenden Erfindung wird also eine Leuchte mit einem Gehäuse, welche eine Lichtaustrittsöffnung definiert, sowie in dem Gehäuse angeordneten Leuchtmitteln vorgeschlagen, wobei erfindungsgemäß das Gehäuse an der der Lichtaustrittsöffnung gegenüberliegenden Rückseite zumindest teilweise lichtdurchlässig oder offen ist und die Anordnung der Leuchtmittel innerhalb des Gehäuses derart ist, dass über die Rückseite in das Gehäuse eintretendes Licht dieses über die Lichtaustrittsöffnung verlassen kann. Die Leuchtmittel sind an mehreren länglichen Trägerelementen angeordnet, welche sich im Wesentlichen parallel und mit Abstand zueinander durch das Gehäuse erstrecken. In den Zwischenbereichen zwischen den Trägerelementen sind zusätzliche optische Elemente zur Beeinflussung des hindurchtretenden (Tages-) Lichts angeordnet sind. Die Trägerelemente dienen dabei vorzugsweise auch der Lagerung dieser optischen Elemente.According to the present invention, therefore, a luminaire with a housing which defines a light exit opening and arranged in the housing bulbs proposed, according to the invention, the housing at the opposite side of the light exit opening is at least partially transparent or open and the arrangement of the light source within the housing so is that on the back into the housing entering light can leave this through the light exit opening. The lighting means are arranged on a plurality of elongated carrier elements which extend substantially parallel and at a distance from each other through the housing. In the intermediate regions between the support elements additional optical elements for influencing the passing through (day) light are arranged. The support elements are preferably also the storage of these optical elements.
Die erfindungsgemäße Lösung gestattet es, mit Hilfe derartiger Leuchten einen Deckenbereich eines Gebäudes oder eines Raums mit so genannten Lichtkacheln auszufüllen, durch welche einerseits das natürliche Tageslicht in den Raum einfallen kann und andererseits gegebenenfalls auch Kunstlicht abgegeben wird. Die bisherige Unterteilung zwischen Fenstern oder Glasfronten, durch die das Tageslicht einfällt, und separat dazu angeordneten Leuchten entfällt also, was zu einem interessanten Erscheinungsbild des Raums insgesamt führt. Wie nachfolgend noch näher erläutert wird können dabei die Leuchten aufgrund der Tatsache, dass sie sehr große Flächen einnehmen können, auch noch zu anderen Zwecken wie beispielsweise der Schalldämpfung oder dergleichen genutzt werden. Durch die in den Zwischenbereichen zwischen den Trägerelementen angeordneten zusätzlichen optischen Elemente zur Beeinflussung des hindurchtretenden (Tages-) Lichts, erscheint dann auch in einer Situation, in der durch die Leuchte lediglich Tageslicht abgegeben wird, die Lichtaustrittsfläche möglichst gleichmäßig hell.The solution according to the invention makes it possible, with the aid of such luminaires, to fill out a ceiling area of a building or a room with so-called light tiles, through which on the one hand the natural daylight can enter the room and, on the other hand, where appropriate also artificial light is emitted. The previous subdivision between windows or glass fronts, through which the daylight is incident, and separately arranged lights omitted so what leads to an interesting appearance of the room as a whole. As will be explained in more detail below, the lights can also be used for other purposes such as sound attenuation or the like due to the fact that they can occupy very large areas. By in the Intermediate areas between the support elements arranged additional optical elements for influencing the passing through (day) light, then appears even in a situation in which is given by the light only daylight, the light exit surface as uniformly bright.
Durch die Zwischenräume zwischen den Trägerelementen mit den Leuchtmitteln kann dann das Tageslicht hindurchtreten und über die Lichtaustrittsöffnung letztendlich abgegeben werden.Through the spaces between the support elements with the bulbs then the daylight can pass and ultimately be delivered through the light exit opening.
Vorzugweise ist das Gehäuse der erfindungsgemäßen Leuchte rahmenartig ausgebildet und dementsprechend zur Rückseite hin vollkommen offen. Das Gehäuse ist dabei vorzugsweise rechteckig, insbesondere quadratisch geformt, wobei diesbezüglich selbstverständlich keine Beschränkung besteht und auch andere Formen denkbar wären.Preferably, the housing of the lamp according to the invention is like a frame and accordingly completely open to the rear. The housing is preferably rectangular, in particular square shaped, in this regard, of course, there is no restriction and other forms would be conceivable.
Die Leuchtmittel können insbesondere durch LEDs gebildet sein.The lighting means may be formed in particular by LEDs.
Die Trägerelemente für die Leuchtmittel, insbesondere für die LEDs, können dabei vorzugsweise durch Profilteile, insbesondere Aluminiumprofilteile, gebildet sein, welche jeweils mit ihren Stirnenden an dem Gehäuse befestigt sind.The support elements for the light sources, in particular for the LEDs, may be formed by profile parts, in particular aluminum profile parts, which are each attached with their front ends to the housing.
Die Profilteile können dann stegartig ausgebildet sein und zunächst einen Aufnahmebereich zur Halterung von LED-Platinen aufweisen. Von diesem Aufnahmebereich kann sich dann zur Rückseite hin ein Stegbereich erstrecken, der vorzugsweise in Form eines Kühlkörpers ausgebildet ist, also mehrere Seitenarme aufweist, durch welche die Oberfläche vergrößert und damit der Wärmeaustausch zur umgebenden Luft optimiert wird. Darüber hinaus können die Trägerelemente gleichzeitig zur Halterung von Primäroptiken für die LEDs genutzt werden, wobei diese Primäroptiken dazu ausgelegt sind, eine gleichmäßige Lichtabgabe des Kunstlichts zu unterstützen.The profile parts can then be web-like and initially have a receiving area for holding LED boards. From this receiving area, a web region can then extend to the rear, which is preferably designed in the form of a heat sink, that is to say has a plurality of side arms, by means of which the surface is enlarged and thus the heat exchange with the surrounding air is optimized. In addition, the carrier elements can be used simultaneously for holding primary optics for the LEDs, these primary optics are designed to support a uniform light output of the artificial light.
Die optischen Elemente können beispielsweise durch längliche Platten gebildet sein, welche eine Strukturierung in Form von Prismen oder dergleichen aufweisen, durch welche eine gleichmäßige Verteilung des Tageslichts erzielt wird. Eine vergleichbare Funktion besitzen - wie bereits erwähnt - auch die Primäroptiken für die Leuchtmittel, sodass sowohl durch das Tageslicht als auch durch das Kunstlicht die Lichtaustrittsfläche der Leuchte möglichst gleichmäßig und homogen aufgehellt wird. Wie bereits erwähnt wird die erfindungsgemäße Leuchte vorzugsweise als großflächige Leuchte realisiert, welche dann auch noch zu anderen Zwecken zur Verbesserung des Raumklimas genutzt werden kann. Gemäß einer bevorzugten Ausführungsform kann dabei vorgesehen sein, dass die Leuchte eine lichtdurchlässige Abdeckung im Bereich der Lichtaustrittsöffnung aufweist, wobei die Abdeckung einen Rahmen aufweist, der mit mindestens zwei - in Lichtabstrahlrichtung gesehen - voneinander beabstandeten lichtdurchlässigen Materialien bespannt ist. Dieser Gedanke ist bereits aus der
Die schalldämmende Wirkung dieser speziellen Abdeckung wird insbesondere dann erzielt, wenn die beiden lichtdurchlässigen Materialien eine unterschiedliche Schalldurchlässigkeit aufweisen. Dabei weist insbesondere das dem Gehäuse zugewandte lichtdurchlässige Material eine niedrigere Schalldurchlässigkeit auf, während hingegen die Schalldurchlässigkeit der entfernter liegenden Bespannung, die also letztendlich die Lichtabgabefläche der Leuchte bildet, deutlich höher ist. In diesem Fall wird der Schall von der Abdeckung nicht mehr reflektiert sondern dringt in den Zwischenraum zwischen den beiden Materialien ein, was zur Folge hat, dass die angestrebte Schalldämmung erzielt wird. Bei den beiden Materialien kann es sich insbesondere um Folien oder Gewebe handeln.The sound-absorbing effect of this special cover is achieved in particular when the two translucent materials have a different sound transmission. In this case, in particular, the light-transmissive material facing the housing has a lower sound transmission, whereas the sound transmission of the more distant clothing, which ultimately forms the light-emitting surface of the luminaire, is significantly higher. In this case, the sound from the cover is no longer reflected but penetrates into the space between the two materials, with the result that the desired sound insulation is achieved. The two materials may in particular be films or fabrics.
Nachfolgend soll die Erfindung anhand der beiliegenden Zeichnung näher erläutert werden. Es zeigen:
- Figur 1
- ein Ausführungsbeispiel einer erfindungsgemäßen Leuchte in perspektivischer Ansicht von unten;
- Figur 2
- eine seitliche Ansicht der erfindungsgemäßen Leuchte;
- Figur 3
- eine vergrößerte Schnittdarstellung der erfindungsgemäßen Leuchte;
- Figur 4
- eine Explosionsdarstellung der Trägerelemente für die Leuchtmittel sowie der daran angeordneten optischen Elemente und
- Figuren 5a und 5b
- Darstellungen zur Wirkung der erfindungsgemäßen Leuchte bei der Lichtabgabe von Tageslicht sowie von Kunstlicht.
- FIG. 1
- an embodiment of a lamp according to the invention in a perspective view from below;
- FIG. 2
- a side view of the lamp according to the invention;
- FIG. 3
- an enlarged sectional view of the lamp according to the invention;
- FIG. 4
- an exploded view of the support elements for the lamps and the optical elements arranged thereon and
- FIGS. 5a and 5b
- Representations of the effect of the lamp according to the invention in the light output of daylight and artificial light.
Als Ausführungsbeispiel der Erfindung ist in den Figuren eine quadratische, allgemein mit dem Bezugszeichen 100 versehene Leuchte gezeigt. Es handelt sich um eine Leuchte, die üblicherweise unterhalb einer lichtdurchlässigen Deckenstruktur eines Gebäudes angeordnet wird, durch welche das Tageslicht in das Gebäude bzw. in den Raum, der beleuchtet werden soll, einfallen kann. Dabei ist vorgesehen mit Hilfe mehrerer derartiger Leuchten 100 eine größere Fläche vollständig auszufüllen, so dass über die hierdurch gebildete Anordnung sowohl das Tageslicht als auch das Kunstlicht in den Raum fällt. Vorzugsweise ist deshalb die dargestellte quadratische Form für die Leuchte 100 vorgesehen, wobei diesbezüglich selbstverständlich keine Beschränkungen bestehen. In der Regel wird es sich allerdings um verhältnismäßig großflächige Leuchten handeln, die beispielsweise eine Kantenlänge von 1 m oder mehr aufweisen.As an embodiment of the invention, a square, generally provided with the
Entsprechend der seitlichen Darstellung gemäß
Der zentrale Gedanke der erfindungsgemäßen Leuchte 100 ist dabei der Schnittdarstellung von
Innerhalb des Gehäuses 10 sind mehrere Leuchtmittel angeordnet, mit deren Hilfe gleichmäßig Kunstlicht über die gesamte Fläche der Leuchte 100 hinweg abgegeben werden kann. Als Leuchtmittel sind im vorliegenden Fall LEDs 21 vorgesehen, die wie in
Die Profilteile 15 werden insbesondere durch stegartige Aluminiumprofile gebildet, welche entsprechend der Darstellung von
Eine weitere Funktion der Profilelemente 15, welche die Leuchtmittel 20 tragen, besteht in der Halterung einer Primäroptik für die LEDs 21. Diese Primäroptik 22 besteht aus einem Kunststoffteil aus lichtdurchlässigem Material, welches im Querschnitt dreieck- beziehungsweise keilförmig ausgeführt ist. An den beiden Seitenflanken des Elements 22 sind hierbei längliche Prismen oder Streustrukturen 23 ausgebildet, durch welche eine gleichmäßige Verteilung des LED-Lichts erzielt wird. Hierdurch wird verhindert, dass beim Aktivieren des Kunstlichts die einzelnen LED-Reihen als hell erleuchtete Bereiche erscheinen.Another function of the
Die Befestigung der Primäroptiken 22 an den Trägerelementen 15 erfolgt mit Hilfe zweier an der Rückseite vorgesehener Arme 24, welche in entsprechende Führungsbahnen 19 an dem Profilteil 15 eingreifen.The fastening of the
Dadurch, dass die Trägerelemente 15 mit den Leuchtmitteln 20 jeweils beabstandet zueinander durch das Leuchtengehäuse 10 verlaufen, werden dazwischenliegende Freiräume gebildet, welche den Durchtritt des Tageslichts ermöglichen. Gemäß einer besonders bevorzugten Ausführungsform ist allerdings vorgesehen, dass auch diese Zwischenbereiche optische Elemente aufweisen, durch welche die Abgabe des Tageslichts optimiert wird. Es handelt sich hierbei um scheibenförmige transparente Platten 25, welche wiederum durch die Trägerelemente 15 gehalten werden. Wie
Bevor die Wirkungsweise der erfindungsgemäßen Leuchte 100 im Hinblick auf die Abgabe von Tageslicht und Kunstlicht näher erläutert wird, soll zunächst noch die an der Unterseite des Gehäuses 10 angeordnete Abdeckung 50 näher erläutert werden. Diese ist wie bereits erwähnt im Wesentlichen entsprechend einer in der
Vorzugsweise wirken beide Bespannungen 53 und 55 lichtstreuend, so dass über diese zweifache zusätzliche Steuerung eine äußerst homogene Lichtabgabe über die gesamte Fläche erzielt wird. Ferner sind allerdings die Bespannungen 53 und 55 derart ausgestaltet, dass sie zusätzlich auch eine Schalldämmung bewirken. Dies kann insbesondere dadurch gefördert werden, dass die äußere beziehungsweise untere Bespannung 55 verhältnismäßig gut schalldurchlässig ist während hingegen die dem Gehäuse 10 zugewandte innere Bespannung 53 eine geringere Schalldurchlässigkeit aufweist. Von außen bzw. unten auf die Oberfläche auftretender Schall kann dementsprechend in den Zwischenraum zwischen den beiden Bespannungen 53, 55 eindringen, wird hierin allerdings sozusagen gefangen gehalten und dementsprechend nicht mehr zurückreflektiert. Hierdurch trägt die Leuchte zusätzlich auch zur Verbesserung des Raumklimas bei, wobei allerdings gegebenenfalls der Lichtaustrittsbereich der Leuchte 100 auch anderweitig gestaltet sein könnte.Preferably, both
Die Wirkungsweise der erfindungsgemäßen Leuchte ist in den
Steht hingegen kein oder nur ein sehr geringer Anteil an Tageslicht zur Verfügung, so kann eine Kunstlichtabgabe erfolgen, wie sie in
Dementsprechend kann also mit der erfindungsgemäßen Leuchte 100 tatsächlich sowohl Tageslicht als auch Kunstlicht abgegeben werden, was zu einer äußerst angenehmen Beleuchtungssituation führt. Als Lichtquellen für das Kunstlicht kommen dabei vorzugweise Weißlicht-LEDs zum Einsatz. Es wäre allerdings durchaus auch denkbar, dass gegebenenfalls ein kleiner Teil der LEDs auch farbiges Licht abgibt, welches dann dazu genutzt wird, dem Kunstlicht eine gewisse Farbstimmung zu verleihen.Accordingly, therefore, both daylight and artificial light can actually be emitted with the
Claims (13)
- A light (100) with
a housing (10), which defines a light exit opening (12), as well as lighting means (20, 21) arranged in the housing (10),
wherein the housing on the rear side opposite the light exit opening (12) is at least partially light-permeable or open and the arrangement of the lighting means (20, 21) is such that light entering via the rear side into the housing (10) can exit the latter via the light exit opening (12), and wherein the lighting means (20, 21) are arranged on several elongated support elements (15), which extend substantially parallel and at a distance to one another through the housing (10),
wherein
in the intermediate areas between the support elements (15) optical elements (25) are arranged for influencing the light passing through the housing (10), characterized in that the support elements (15) are also used for mounting said optical elements (25). - A light according to Claim 1,
characterized in
that the housing (10) is designed to be frame-like and preferably rectangular,
in particular is square-shaped. - A light according to any one of Claims 1 or 2,
characterized in
that the lighting means are formed by LEDs (21). - A light according to Claim 3,
characterized in
that the support elements (15) for the LEDs (21) are formed by profile parts - preferably made of aluminum -, which in each case are fixed with their end faces to the housing (10). - A light according to Claim 4,
characterized in
that the profile parts are designed to be web-like with a receiving area (16) for mounting LED circuit boards (20) as well as a web area (17) leading away from the receiving area (16) and designed as a cooling element. - A light according to any one of Claims 3 to 5,
characterized in
that the support elements (15) at the same time are used for mounting primary optics (22) for the LEDs (21). - A light according to any one of the preceding claims,
characterized in
that the optical elements (25) are formed by elongated plates, which have a structuring (27) for influencing the light passing through. - A light according to any one of the preceding claims,
characterized in
that said light has a light-permeable cover (50) in the area of the light exit opening (12), wherein the cover (50) has a frame (51), which is covered with at least two - viewed in the light emitting direction - light-permeable materials (53, 55) spaced apart from one another. - A light according to Claim 8,
characterized in
that the two light-permeable materials (53, 55) act in a light-scattering manner. - A light according to Claim 8 or 9,
characterized in
that the two light-permeable materials (53, 55) have a different sound permeability. - A light according to Claim 10,
characterized in
that light-permeable material (53) facing the housing (10) has a lower sound permeability. - A light according to any one of Claims 8 to 11,
characterized in
that the light-permeable materials (53, 55) are formed by films or fabric. - An arrangement for illuminating a room or a building, having a wall- and/or ceiling structure, which is designed such that it makes possible the entry of day light, as well as at least one light arranged in front of the wall- and/or ceiling structure according to any one of the preceding claims.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201320105914 DE202013105914U1 (en) | 2013-12-23 | 2013-12-23 | lamp |
Publications (2)
Publication Number | Publication Date |
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EP2886950A1 EP2886950A1 (en) | 2015-06-24 |
EP2886950B1 true EP2886950B1 (en) | 2017-07-26 |
Family
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Family Applications (1)
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EP14198436.9A Active EP2886950B1 (en) | 2013-12-23 | 2014-12-17 | Light |
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EP (1) | EP2886950B1 (en) |
AT (1) | AT14748U1 (en) |
DE (1) | DE202013105914U1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
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DE202015103195U1 (en) | 2015-06-17 | 2016-09-20 | Zumtobel Lighting Gmbh | System for implementing a translucent surface, and lighting system with such a system |
US10101002B2 (en) * | 2015-11-09 | 2018-10-16 | Apple Inc. | Light fixture with fabric layer having printed dots |
DE202016104061U1 (en) * | 2016-07-26 | 2017-10-27 | Zumtobel Lighting Gmbh | Luminaire with changeable outer shape |
US12025290B1 (en) | 2021-05-18 | 2024-07-02 | Signify Holding B.V. | Acoustic lighting device |
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DE2207585A1 (en) * | 1971-06-01 | 1973-08-23 | Mero Werke Kg | LIGHT SHELL ARRANGEMENT IN ROOFS, CEILINGS OR WALLS OF LARGE-SPACIOUS BUILDINGS |
DE29921689U1 (en) * | 1999-12-09 | 2001-04-19 | Emde Thomas | Light-emitting wall, wall opening, ceiling and facade cladding system for buildings |
DE20119937U1 (en) * | 2001-12-08 | 2002-02-28 | Hobby-Wohnwagenwerk Ing. Harald Striewski GmbH, 24787 Fockbek | Frame unit for arrangement around a wall or ceiling opening in a closed room |
WO2004080712A1 (en) * | 2003-03-07 | 2004-09-23 | Döppner Bauelemente GmbH & Co. KG | Transparent element, especially a composite glass element |
US20050201075A1 (en) * | 2003-12-16 | 2005-09-15 | Gandhi Chimanlal N. | Lighting fixture |
EP1979160A1 (en) * | 2006-01-25 | 2008-10-15 | AGC Flat Glass Europe SA | Automotive glazing |
DE102006060781B4 (en) * | 2006-09-29 | 2021-09-16 | Pictiva Displays International Limited | Organic light source |
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DE102008017265A1 (en) * | 2008-04-04 | 2009-10-08 | Irlbacher Blickpunkt Glas Gmbh | Lamp e.g. floor lamp and table lamp, has body forming lamp housing, and board attached to body, where illuminant i.e. LED, and power supply unit of illuminant are arranged on board |
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FR2970011B1 (en) * | 2010-12-30 | 2013-01-11 | Normalu | LUMINOUS DEVICE INTENDED TO BE INTEGRATED WITH A FALSE WALL AND FOR OBTAINING AN ESTHETIC EFFECT IN THREE DIMENSIONS |
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KR101258152B1 (en) * | 2012-11-28 | 2013-04-25 | (주)에이비엠그린텍 | A lighting device of fixing type using sun lights |
-
2013
- 2013-12-23 DE DE201320105914 patent/DE202013105914U1/en not_active Expired - Lifetime
-
2014
- 2014-04-15 AT ATGM161/2014U patent/AT14748U1/en not_active IP Right Cessation
- 2014-12-17 EP EP14198436.9A patent/EP2886950B1/en active Active
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US20120020112A1 (en) * | 2009-03-30 | 2012-01-26 | 3Form, Inc. | Light boxes with uniform light distribution |
Also Published As
Publication number | Publication date |
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AT14748U1 (en) | 2016-05-15 |
DE202013105914U1 (en) | 2015-03-24 |
EP2886950A1 (en) | 2015-06-24 |
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