EP2886950A1 - Light - Google Patents

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Publication number
EP2886950A1
EP2886950A1 EP14198436.9A EP14198436A EP2886950A1 EP 2886950 A1 EP2886950 A1 EP 2886950A1 EP 14198436 A EP14198436 A EP 14198436A EP 2886950 A1 EP2886950 A1 EP 2886950A1
Authority
EP
European Patent Office
Prior art keywords
light
housing
luminaire according
exit opening
daylight
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP14198436.9A
Other languages
German (de)
French (fr)
Other versions
EP2886950B1 (en
Inventor
Julian Lonsdale
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.)
Zumtobel Lighting GmbH Austria
Original Assignee
Zumtobel Lighting GmbH Austria
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Filing date
Publication date
Application filed by Zumtobel Lighting GmbH Austria filed Critical Zumtobel Lighting GmbH Austria
Publication of EP2886950A1 publication Critical patent/EP2886950A1/en
Application granted granted Critical
Publication of EP2886950B1 publication Critical patent/EP2886950B1/en
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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
    • 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
    • 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
    • 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
    • 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
    • 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
    • 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
    • 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 is to be made available, which allows in a completely novel way a coordinated illumination of a room by both 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 lamps within the housing so is that on the back into the housing entering light can leave this through the light exit opening.
  • 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.
  • 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 are arranged according to a preferred embodiment of a plurality of elongated support members which extend substantially parallel and at a distance from each other through the housing.
  • the can Lamp be formed in particular by LEDs. Through the spaces between the support elements with the bulbs then the daylight can pass and ultimately be delivered through the light exit opening.
  • the support elements for the lamps, in particular for the LEDs are preferably formed by profile parts, in particular aluminum profile parts, which are each attached with their front ends to the housing. These profile parts can 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 to 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 support elements can serve the storage of these optical elements.
  • the support elements can serve the storage of these optical elements.
  • These are formed for example by elongated plates having a structuring in the form of prisms or the like, through which a uniform distribution of 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.
  • 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)

Abstract

Bei einer Leuchte (100) mit einem Gehäuse (10), welches eine Lichtaustrittsöffnung (12) definiert, sowie in dem Gehäuse (10) angeordneten Leuchtmitteln (20, 21) ist das Gehäuse (10) an der der Lichtaustrittsöffnung (12) gegenüberliegenden Rückseite zumindest teilweise lichtdurchlässig oder offen und die Anordnung der Leuchtmittel (20, 21) ist derart, dass über die Rückseite in das Gehäuse (10) eintretendes Licht dieses über die Lichtaustrittsöffnung (12) verlassen kann.In a luminaire (100) having a housing (10) which defines a light exit opening (12), and in the housing (10) arranged bulbs (20, 21), the housing (10) at the light exit opening (12) opposite back at least partially translucent 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 leave it via the light exit opening (12).

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.

Mit der vorliegenden Erfindung soll eine Leuchte zur Verfügung gestellt werden, die in völlig neuartiger Weise eine aufeinander abgestimmte Beleuchtung eines Raums sowohl durch Tageslicht als auch durch Kunstlicht ermöglicht.With the present invention, a luminaire is to be made available, which allows in a completely novel way a coordinated illumination of a room by both daylight and by artificial light.

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.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 lamps within the housing so is that on the back into the housing entering light can leave this through the light exit opening.

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.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.

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 sind dabei gemäß einem bevorzugten Ausführungsbeispiel an mehreren länglichen Trägerelementen angeordnet, welche sich im Wesentlichen parallel und mit Abstand zueinander durch das Gehäuse erstrecken. Dabei können die Leuchtmittel insbesondere durch LEDs gebildet sein. Durch die Zwischenräume zwischen den Trägerelementen mit den Leuchtmitteln kann dann das Tageslicht hindurchtreten und über die Lichtaustrittsöffnung letztendlich abgegeben werden.The lighting means are arranged according to a preferred embodiment of a plurality of elongated support members which extend substantially parallel and at a distance from each other through the housing. The can Lamp be formed in particular by LEDs. Through the spaces between the support elements with the bulbs then the daylight can pass and ultimately be delivered through the light exit opening.

Die Trägerelemente für die Leuchtmittel, insbesondere für die LEDs sind dabei vorzugsweise durch Profilteile, insbesondere Aluminiumprofilteile gebildet, welche jeweils mit ihren Stirnenden an dem Gehäuse befestigt sind. Diese Profilteile können dabei 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 support elements for the lamps, in particular for the LEDs are preferably formed by profile parts, in particular aluminum profile parts, which are each attached with their front ends to the housing. These profile parts can 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 to 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.

Damit auch in der Situation, in der durch die Leuchte lediglich Tageslicht abgegeben wird, die Lichtaustrittsfläche möglichst gleichmäßig hell erscheint, ist vorzugsweise vorgesehen, dass in den Zwischenbereichen zwischen den Trägerelementen zusätzliche optische Elemente zur Beeinflussung des hindurchtretenden (Tages-) Lichts angeordnet sind. Auch in diesem Fall können die Trägerelemente der Lagerung dieser optischen Elemente dienen. Diese sind dabei beispielsweise durch längliche Platten gebildet, 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.Thus, even in the situation in which only daylight is emitted by the lamp, the light exit surface appears evenly bright, it is preferably provided that in the intermediate areas between the support elements additional optical elements for influencing the passing through (day) light are arranged. Also in this case, the support elements can serve the storage of these optical elements. These are formed for example by elongated plates having a structuring in the form of prisms or the like, through which a uniform distribution of daylight is achieved. As already mentioned, 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.

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 EP 2 221 528 A2 der Anmelderin bekannt und wird insbesondere dazu genutzt, eine Schalldämmung zu bewirken. Ferner kann allerdings auch mit Hilfe dieser Materialien die Lichtabgabe der Leuchte gezielt beeinflusst werden. So wäre insbesondere denkbar, dass die Materialien lichtstreuend wirken, so dass ein Einblick in den Innenbereich der Leuchte verhindert wird.As already mentioned, 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. According to a preferred embodiment, it may be provided that 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. This thought is already out of the EP 2 221 528 A2 The applicant is known and is used in particular to effect a sound insulation. Furthermore, however, with the help of these materials, the light output of the lamp can be specifically influenced become. For example, it would be conceivable for the materials to have a light-scattering effect, so that an insight into the interior of the luminaire is prevented.

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.
The invention will be explained in more detail with reference to the accompanying drawings. Show it:
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 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. Preferably, therefore, 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.

Entsprechend der seitlichen Darstellung gemäß Figur 2 ist die Leuchte leicht abgestuft ausgebildet und weist ein oberes Gehäuseteil 10 auf, an dessen Unterseite zusätzlich eine Abdeckung 50 angeordnet ist. Die Abdeckung 50 ist hinsichtlich ihrer Abmessungen etwas größer als das Gehäuse 10 gestaltet, wobei dann beim Zusammenfügen mehrerer Leuchte 100 die Abdeckungen seitlich aneinander stoßen und an dem Gehäuse 10 entsprechende Befestigungsmittel zur Montage der Leuchte 100 angebracht werden können.According to the lateral representation according to FIG. 2 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.

Der zentrale Gedanke der erfindungsgemäßen Leuchte 100 ist dabei der Schnittdarstellung von Figur 3 entnehmbar. Dabei ist erkennbar, dass das Gehäuse 10 nicht - wie normalerweise üblich - eine rückseitige, im Wesentlichen geschlossene Bodenfläche aufweist, an der die Montage der verschiedenen Komponenten der Leuchte 100 erfolgt. Stattdessen ist das Gehäuse 10 rahmenartig ausgebildet und weist dementsprechend an seiner Rückseite eine sich nahezu über die gesamte Breite hinweg erstreckende Öffnung 11 auf. Diese Öffnung 11 könnte gegebenenfalls durch ein lichtdurchlässiges Element abgedeckt werden, vorzugweise ist allerdings vorgesehen, dass keine entsprechende Abdeckung eingesetzt wird, sondern die Leuchte 100 tatsächlich zur Rückseite hin offen ist. Die Unterseite des Gehäuses 10 definiert eine Lichtaustrittsöffnung 12, über welche das Licht abgegeben wird. Im vorliegenden Fall erfolgt wie bereits angedeutet die Lichtabgabe über eine zusätzliche Abdeckung 50, die unterhalb des Gehäuses 10 angeordnet ist und deren Ausgestaltung nachfolgend noch näher erläutert wird.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.

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 Figur 4 dargestellt auf länglichen Platinen 20 angeordnet sind. Die Halterung der LED-Platinen 20 erfolgt dabei mit Hilfe mehrerer Profilteile 15, welche parallel zueinander durch das Leuchtengehäuse 10 verlaufen und jeweils an ihren Stirnenden an dem rahmenartigen Gehäuse 10 befestigt, beispielsweise mit einem leicht erhöhten Steg 13 der Gehäusewand verschraubt sind. Innerhalb des Gehäuses 10 sind ferner Betriebsgeräte 14 zur Stromversorgung des Leuchtmittel angeordnet.Within the housing 10 a plurality of bulbs are arranged, with the help of uniform artificial light over the entire surface of the lamp 100 can be dispensed away. As light-emitting means 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. Within the housing 10, operating devices 14 are also arranged for the power supply of the lighting means.

Die Profilteile 15 werden insbesondere durch stegartige Aluminiumprofile gebildet, welche entsprechend der Darstellung von Figur 4 an ihrer den LEDs 21 zugewandten Seite einen Aufnahmebereich 16 zur Lagerung der LED-Platinen 20 aufweisen. Von diesem Aufnahmebereich 16 erstreckt sich zur Rückseite, im Montagefall also nach oben hin ein stegartiger Bereich 17, der mehrere seitlich verzweigende Arme 18 aufweist. Hierdurch bildet das Profilelement 15 einen Kühlkörper, über den während des Betriebs der LEDs 21 auftretende Wärme effizient an die Umgebung abgeführt werden kann. Diese Wärmeabführung wird dabei dadurch unterstützt, dass wie bereits oben erwähnt die Rückseite der Leuchte 100 vorzugsweise vollständig offen ist.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.

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 profile elements 15, which carry the bulbs 20, consists in the holder of a primary optics for the LEDs 21. This primary optics 22 consists of a plastic part made of translucent material, which is triangular or wedge-shaped in cross section. On the two side edges of the element 22 in this case 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.

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 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.

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 Figur 3 entnommen werden kann, liegen diese Platten 15 ihren Randbereichen 26 auf den Rückseiten der keilförmigen Bereiche der Primäroptiken 22 auf. An ihrer Unterseite weisen die Platten 22 wiederum eine längliche Rillenstruktur 27 auf, die vergleichbar mit der Struktur der Primäroptiken 22 ist. Auch hier dient die Struktur 27 dazu, das hindurchtretende Tageslicht gleichmäßiger zu verteilen und dementsprechend für eine homogene Abgabe des Tageslichts zu sorgen.Characterized in that the support members 15 with the bulbs 20 each spaced from each other through the lamp housing 10, intermediate clearances are formed, which allow the passage of daylight. According to a particularly preferred embodiment, however, it is provided that these intermediate regions also have optical elements by means of which the emission of daylight is optimized. These are disk-shaped transparent plates 25, which in turn are held by the carrier elements 15. As FIG. 3 can be removed, these plates 15 are their edge regions 26 on the backs of the wedge-shaped regions of the primary optics 22. On its underside, the plates 22 again have an elongated groove structure 27 that is comparable to the structure of the primary optics 22. Here, too, the structure 27 serves to distribute the passing daylight more evenly and accordingly to ensure a homogeneous delivery of daylight.

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 EP 2 221 528 A2 beschriebenen Lösung ausgebildet. Die Abdeckung weist hierbei einen umlaufenden Rahmen 51 auf, der mit Hilfe einer Schraubbefestigung 52 an der Unterseite des Leuchtengehäuses 10 befestigt ist. Der Rahmen 51 dient dabei der Halterung zweier so genannter Bespannungen 53 und 55, welche durch Folien oder Gewebe gebildet sind. Diese Bespannungen bestehen also aus einem leicht flexiblen Material, welches ein Einspannen in die Rahmenkonstruktion 51 der Abdeckung 50 ermöglicht. Dies erfolgt beispielsweise mit im Randbereich der Bespannungen 53, 55 vorgesehenen Kedern, welche in entsprechende Kanäle des Profilrahmens 51 eingehängt werden können.Before the mode of operation of the luminaire 100 according to the invention is explained in detail with regard to the emission of daylight and artificial light, should first still the the underside of the housing 10 arranged cover 50 are explained in more detail. This is as already mentioned essentially according to one in the EP 2 221 528 A2 formed solution described. 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. Thus, 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.

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 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. Furthermore, however, 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.

Die Wirkungsweise der erfindungsgemäßen Leuchte ist in den Figuren 5a und 5b dargestellt. Figur 5a zeigt hierbei zunächst den Fall, dass über die Leuchte Tageslicht, welches von der Oberseite her auf die Leuchte 100 fällt, abgegeben wird. Erkennbar ist dabei, dass die über die offene Gehäuserückseite eintretenden Strahlen durch die optischen Elemente 25 gestreut werden, sodass eine gleichmäßige homogene Lichtabgabe erzielt wird, welche zusätzlich auch durch die Bespannungen 53 und 55 der Abdeckung 50 unterstützt wird. Primär verantwortlich für die gleichmäßige Abgabe des Tageslichts sind allerdings die optischen Elemente 25. Die Wirkungsweise ist dabei derart gut, dass die Trägerelemente 15 mit den Lichtquellen nicht beziehungsweise nahezu kaum als dunkle Streifen in der Leuchte erkennbar sind.The operation of the lamp according to the invention is in the FIGS. 5a and 5b shown. FIG. 5a Here, 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.

Steht hingegen kein oder nur ein sehr geringer Anteil an Tageslicht zur Verfügung, so kann eine Kunstlichtabgabe erfolgen, wie sie in Figur 5b dargestellt ist. Hierbei erfolgt die Lichtabgabe primär durch die LEDs 21, wobei mit Hilfe der Primäroptiken 22 wiederum eine gleichmäßige Verteilung des LED-Lichts erzielt wird. Diese Verteilung ist dabei derart effizient, dass nunmehr keine einzelnen hellen in Längsrichtung verlaufenden Streifen innerhalb der Leuchte 100 erkennbar sind sondern wiederum die untere Bespannung 55 der Abdeckung 50 gleichmäßig hell erscheint.If, on the other hand, no or only a very small proportion of daylight is available, artificial light can be emitted, as in FIG. 5b is shown. This takes place the light output primarily through the LEDs 21, with the help of the primary optics 22 again a uniform distribution of the LED light is achieved. This distribution is so efficient that now no single bright running in the longitudinal direction strips within the lamp 100 are recognizable but in turn the lower fabric 55 of the cover 50 appears uniformly bright.

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 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.

Claims (15)

Leuchte (100) mit
einem Gehäuse (10), welches eine Lichtaustrittsöffnung (12) definiert, sowie in dem Gehäuse (10) angeordneten Leuchtmitteln (20, 21),
dadurch gekennzeichnet,
dass das Gehäuse (10) an der der Lichtaustrittsöffnung (12) gegenüberliegenden Rückseite zumindest teilweise lichtdurchlässig oder offen ist und die Anordnung der Leuchtmittel (20, 21) derart ist, dass über die Rückseite in das Gehäuse (10) eintretendes Licht dieses über die Lichtaustrittsöffnung (12) verlassen kann.Light (100) with
a housing (10), which defines a light exit opening (12), and light sources (20, 21) arranged in the housing (10),
characterized,
that the housing (10) on the side opposite the light exit opening (12) back is at least partially transparent or open, and the arrangement of the lighting means (20, 21) is such that on the rear side in the housing (10), light entering this through the light exit opening (12) can leave. Leuchte nach Anspruch 1,
dadurch gekennzeichnet,
dass das Gehäuse (10) rahmenartig ausgebildet und vorzugsweise rechteckig, insbesondere quadratisch geformt ist.Luminaire according to claim 1,
characterized,
that the housing (10) is formed like a frame and preferably rectangular, in particular square shaped. Leuchte nach Anspruch 1 oder 2,
dadurch gekennzeichnet,
dass die Leuchtmittel (20, 21) an mehreren länglichen Trägerelementen (15) angeordnet sind, welche sich im Wesentlichen parallel und mit Abstand zueinander durch das Gehäuse (10) erstrecken.Luminaire according to claim 1 or 2,
characterized,
in that the lighting means (20, 21) are arranged on a plurality of elongate carrier elements (15) which extend through the housing (10) substantially parallel and at a distance from each other. Leuchte nach Anspruch 3,
dadurch gekennzeichnet,
dass die Leuchtmittel durch LEDs (21) gebildet sind.Luminaire according to claim 3,
characterized,
that the illuminants are formed by LEDs (21). Leuchte nach Anspruch 4,
dadurch gekennzeichnet,
dass die Trägerelemente (15) für die LEDs (21) durch Profilteile - vorzugsweise aus Aluminium - gebildet sind, welche jeweils mit ihren Stirnenden an dem Gehäuse (10) befestigt sind.Luminaire according to claim 4,
characterized,
in that the carrier elements (15) for the LEDs (21) are formed by profile parts - preferably made of aluminum - which are each fastened with their front ends to the housing (10). Leuchte nach Anspruch 5,
dadurch gekennzeichnet,
dass die Profilteile stegartig ausgebildet sind mit einem Aufnahmebereich (16) zur Halterung von LED-Platinen (20) sowie einen von dem Aufnahmebereich (16) wegführenden und als Kühlkörper ausgebildeten Stegbereich (17).Luminaire according to claim 5,
characterized,
in that the profile parts are web-like with a receiving area (16) for holding LED boards (20) and a web area (17) leading away from the receiving area (16) and designed as a heat sink. Leuchte nach einem der Ansprüche 4 bis 6,
dadurch gekennzeichnet,
dass die Trägerelemente (15) gleichzeitig der Halterung von Primäroptiken (22) für die LEDs (21) dienen.Luminaire according to one of claims 4 to 6,
characterized,
that the carrier elements (15) serve at the same time the holder of primary optics (22) for the LEDs (21). Leuchte nach einem der Ansprüche 3 bis 8,
dadurch gekennzeichnet,
die in den Zwischenbereichen zwischen den Trägerelementen (15) optische Elemente (25) zur Beeinflussung des durch das Gehäuse (10) hindurch tretenden Lichts angeordnet sind, wobei die Trägerelemente (15) vorzugsweise auch der Lagerung dieser optischen Elemente (25) dienen.Luminaire according to one of claims 3 to 8,
characterized,
in the intermediate areas between the support elements (15) optical elements (25) for influencing the passing through the housing (10) passing light are arranged, wherein the support elements (15) preferably also serve the storage of these optical elements (25). Leuchte nach Anspruch 8,
dadurch gekennzeichnet,
dass die optischen Elemente (25) durch längliche Platten gebildet sind, welche eine Strukturierung (27) zur Beeinflussung des hindurchtretenden Lichts aufweisen.Luminaire according to claim 8,
characterized,
in that the optical elements (25) are formed by elongated plates which have a structuring (27) for influencing the light which passes through. Leuchte nach einem der vorherigen Ansprüche,
dadurch gekennzeichnet,
dass diese eine lichtdurchlässige Abdeckung (50) im Bereich der Lichtaustrittsöffnung (12) aufweist,
wobei die Abdeckung (50) vorzugsweise einen Rahmen (51) aufweist, der mit mindestens zwei - in Lichtabstrahlrichtung gesehen - voneinander beabstandeten lichtdurchlässigen Materialien (53, 55) bespannt ist.Luminaire according to one of the preceding claims,
characterized,
that this has a light-permeable cover (50) in the region of the light exit opening (12),
wherein the cover (50) preferably comprises a frame (51) covered with at least two translucent materials (53, 55) spaced apart from one another in the light emission direction. Leuchte nach Anspruch 10,
dadurch gekennzeichnet,
dass die beiden lichtdurchlässigen Materialien (53, 55) lichtstreuend wirken.Luminaire according to claim 10,
characterized,
that the two light-transmitting materials (53, 55) act to scatter light. Leuchte nach Anspruch 10 oder 11,
dadurch gekennzeichnet,
dass die beiden lichtdurchlässigen Materialien (53, 55) eine unterschiedliche Schalldurchlässigkeit aufweisen.Luminaire according to claim 10 or 11,
characterized,
that the two translucent materials (53, 55) have a different sound transmission. Leuchte nach Anspruch 12,
dadurch gekennzeichnet,
dass das dem Gehäuse (10) zugewandte lichtdurchlässige Material (53) eine niedrigere Schalldurchlässigkeit aufweist.Luminaire according to claim 12,
characterized,
in that the light-permeable material (53) facing the housing (10) has a lower sound transmission. Leuchte nach einem der Ansprüche 10 bis 13,
dadurch gekennzeichnet,
dass die lichtdurchlässigen Materialien (53, 55) durch Folien oder Gewebe gebildet sind.Luminaire according to one of claims 10 to 13,
characterized,
that the light-permeable materials (53, 55) are formed by films or tissue. Anordnung zur Beleuchtung eines Raums oder eines Gebäudes, aufweisend eine Wand- und/oder Deckenstruktur, welche derart gestaltet ist, dass sie den Eintritt von Tageslicht ermöglicht, sowie mindestens eine vor der Wand- und/oder Deckenstruktur angeordnete Leuchte nach einem der vorherigen Ansprüche.Arrangement for illuminating a room or a building, comprising a wall and / or ceiling structure, which is designed such that it allows the entry of daylight, and at least one arranged in front of the wall and / or ceiling structure luminaire according to one of the preceding claims.
EP14198436.9A 2013-12-23 2014-12-17 Light Active EP2886950B1 (en)

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
EP2886950A1 true EP2886950A1 (en) 2015-06-24
EP2886950B1 EP2886950B1 (en) 2017-07-26

Family

ID=52231858

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14198436.9A Active EP2886950B1 (en) 2013-12-23 2014-12-17 Light

Country Status (3)

Country Link
EP (1) EP2886950B1 (en)
AT (1) AT14748U1 (en)
DE (1) DE202013105914U1 (en)

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US12025290B1 (en) 2021-05-18 2024-07-02 Signify Holding B.V. Acoustic lighting device

Also Published As

Publication number Publication date
AT14748U1 (en) 2016-05-15
EP2886950B1 (en) 2017-07-26
DE202013105914U1 (en) 2015-03-24

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