• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to an arrangement for emitting light for a light provided for room lighting (100), comprising a plurality of LEDs (11) as light sources and the LEDs (11) associated with optical elements (21, 22), wherein the light of a first LED group (111 ) by one or more first optical elements (21) and the light of a second LED group (112) by one or more second optical elements (22) is emitted and wherein the intensities of the LED groups (111, 112) for modifying the Total light output are changeable.
    公开号:AT15089U1
    申请号:TGM235/2014U
    申请日:2014-05-30
    公开日:2016-12-15
    发明作者:Escourrou Thibaut
    申请人:Zumtobel Lighting Gmbh；
    IPC主号:
    专利说明:

    description
    ARRANGEMENT FOR LIGHT DISPENSER FOR ROOM LIGHTING
    The present invention relates to an arrangement for emitting light, which is intended for use in the room lighting. In particular, the invention relates to an arrangement for emitting light, with the help of either different Lichtabstrahlcharakteristiken can be achieved without this mechanical changes to the arrangement must be made.
    A conceivable application example of the present invention are recessed lights, which are used for example in shops or the like and should selectively illuminate different areas. In the case of such so-called downlights, the luminaires are arranged essentially recessed in the ceiling of a room to be illuminated, and the light is influenced by corresponding optical elements to the underside. In this case, a different light emission characteristic may be desired, depending on whether an area located directly underneath a luminaire or, for example, the wall in the vicinity is to be illuminated.
    So far, only very few ways are known from the prior art to be able to influence the Lichtabstrahlcharakteristik a permanently installed light in particular with regard to their directional dependence in a simple manner. In general, the Lichtabstrahlcharakteristik is determined by the optical system associated with the light sources, in which case with a change in the lighting situation, which leads to that the Lichtabstrahlcharakteristik should be changed, that optical system is replaced by another. Although solutions are also known in which the luminaire itself makes it possible to modify the light distribution curve without the use of new optical elements, as a rule these are then mechanical solutions in which the optical components are adjusted, so that they are in With respect to the light source or light sources are repositioned and thereby the direction of the light output is modified.
    It arises in the above mechanical solutions, the problem that such solutions always require a relatively complex structure and in the event that the lamp is arranged, for example, on the ceiling of a relatively high space, adjusting the optics not readily can be made. Further developments of this basic idea, which include electrical adjustment options and accordingly allow remotely controlled modification of the light output, are usually not practical because of the associated costs.
    The present invention is therefore based on the object to provide a novel solution for lighting for room lighting, in which the light emission characteristics of a lamp can be easily adapted to specific needs. In particular, there should be the possibility of being able to influence the light emission characteristic during later operation without the need for mechanical changes or other influencing of the optical systems.
    The object is achieved by an arrangement for emitting light, which has the features of claim 1. Advantageous developments of the invention are the subject of the dependent claims.
    The inventive concept is based on the idea to use as a light source for the arrangement for light emission LEDs. This is associated with an optical system which has at least two different optical elements for influencing the light emitted by the LEDs, the assignment being such that the light of a first group of LEDs via a first optical element or a first group of optical elements and emitting the light of a second group of LEDs via a second optical element and a second group of optical elements, respectively. Both optical elements or groups of elements differ here with regard to the light emission characteristic, so that a total light output for the luminaire can then be correspondingly varied by changing the intensity of the two LED groups.
    According to the invention therefore an arrangement for emitting light is provided for a luminaire provided for room lighting, which has LEDs as light sources and the LEDs associated optical elements, wherein the light of a first LED group by one or more first optical elements and the light of a second LED group is delivered by one or more second optical elements and wherein the intensity of the LED groups for modifying the total light output of the lamp are changeable.
    Preferably, the optical elements are selected such that with the aid of the first LED group a strongly directed light output is achieved while with the help of the second LED group, a rather broad light output or a laterally directed light output is effected, which then for example Lighting from walls or the like can be used.
    In order to achieve a uniform light output can preferably be provided that the different LED groups are arranged alternately with their associated optical elements. In the case of a larger light emitting surface of the luminaire, it is then ensured that, in spite of everything, light is emitted essentially over the entire light emitting surface. That is, a change in the character of the light output does not cause the appearance of the lamp changes greatly.
    Preferably, the LED groups are each arranged on separate boards, which then allow in a simple manner a corresponding control. In this case, in particular a plurality of elongated boards can be provided, which are then used in alternating order. The optical elements can be designed differently and can be used both as refractive elements, e.g. be designed as lenses or prisms and as reflective elements in the form of a grid or the like.
    The invention will be explained in more detail with reference to the accompanying drawings. FIG. 1 shows the view of a lamp arranged on the ceiling of a room according to the invention; Figure 2 shows the arrangement of the light sources used in the
    Luminaire housing; Figures 3a and 3b representations to illustrate the invention Kon zepts the variation of the light output.
    As an application example of the present invention, a recessed ceiling luminaire 100 is shown in Figure 1. This is located in a mounting opening of a suspended ceiling construction 200 and is executed in the present case square, although of course other shapes for the light emitting surface 110 of the lamp 100 would be conceivable. The almost completely arranged in the suspended ceiling 200 luminaire housing 105 here includes the light sources and a control unit for controlling the light sources, also the light sources associated optical elements are provided, via which the light output is modified. FIG. 2 shows schematically the components arranged in the luminaire housing 105. As can be seen, in this case a plurality of LED boards 10 are provided within the housing 105, which extend parallel to each other through the lamp housing 105. On the boards in each case several LEDs 11 are arranged one behind the other in the longitudinal direction.
    Preferably, the LED boards 10 are made identical, that is, the LEDs 11 are thereon of the same type and accordingly give light of the same color or color temperature and intensity - in accordance with identical control by the operating device 107 - from. Of course, however, different LEDs could also be used, if desired, in the different LED groups, which then leads to a change in the intensity, color and / or color location when the light emission characteristic changes with respect to the light distribution he follows.
    Each LED board 10 is associated with a schematically indicated optics 20, via which the light emitted by the LEDs 11 light is emitted via the light emitting surface 110 of the lamp 100. According to the invention it is now provided that these optics 20 are not configured identically, but the boards 10 are assigned different optics. In the illustrated embodiment, for example, it is provided that two different optics 21 and 22 are used, which are assigned to the LED boards 10 alternately. The LEDs 11 thus form, on the one hand, a first group 111 of light sources whose light output is influenced by the first optics 21, and, on the other hand, a second group 112 of light sources whose light output is influenced by the second optics 22. The control of these two LED groups 11i, 112 by the control unit 107 of the lamp 100 is such that the two groups 11i, 112 can be set separately in their intensity.
    Characterized in that both optics 21 and 22 have different Lichtabstrahlcharakteristiken particularly with regard to the spatial distribution of the light output, now the Lichtabstrahlcharakteristik the light can be influenced as a whole, without requiring a mechanical adjustment of optical elements or the like would be required. The principle for this is illustrated in FIGS. 3a and 3b, in which case it is assumed that there are three adjacent groups of light sources, the two outer light sources being a first group 11! form, to which the schematically illustrated first optics 21 are associated, while on the other hand, the central light source group forms the second group 112, which the optics 22 is associated.
    The two optics 21 and 22 now differ in that the optics 21 a rather wide light output also realized to the side, while on the other hand is achieved by the optics 22 a highly directed light output to the bottom out. The curves shown under the optics 21 and 22 each show in which way the optics alone distributes the associated light, the strongly different light emission characteristics being recognizable.
    By changing the intensities of the light source groups 11! and 112 or the ratio of the intensities now the total light output can be adjusted accordingly. Here, FIG. 3 a shows the case that the second, in this case the middle, lighting means group 112 has a very high intensity and the two outer lighting means groups 111 are operated only with low intensity. Overall, this results in a light distribution, as shown in the bottom row.
    It is thus achieved a relatively strong light output to the bottom out.
    On the other hand, if the ratio of the intensities is reversed, so that primarily the first light-emitting means groups 111 contribute to the light output of the luminaire, then these groups 111 also mainly influence the overall resulting light-emitting characteristic, and the result is clearly evident in FIG. 3b wider light distribution.
    It is therefore obvious that by changing the intensities of the LED groups in a very simple manner, the light emission characteristics of the lamp can be adjusted as a whole. This makes it possible to adapt the light emission characteristic without changing optical elements or mechanically influencing the optical elements. A permanently installed luminaire, which was previously used to illuminate areas located primarily on the underside, can now also be used as a so-called wall washer to illuminate laterally located wall areas.
    In this case, the optical elements can be realized in different ways. It would be conceivable to use corresponding refractive elements, ie lenses or prisms, which may possibly also be combined to form a preferably one-piece light-emitting element. However, in the same way, light-reflecting elements such as
    Grid or the like are used. It is essential that the LEDs are each assigned corresponding optics that affect only the light of the associated LED or LEDs.
    In addition, it would also be readily conceivable to increase the number of different groups instead of two different LED groups with associated different optical elements. In the exemplary embodiment of FIGS. 3 a and 3 b, it would also be conceivable, for example, to associate the outer illuminant groups with optics which emit light intensified laterally only in a specific outer direction. In this case, not only can be changed between a symmetrical wide and a symmetrical narrow Lichtab-beam characteristic but also targeted a one-sided lateral, narrow light output can be achieved.
    Overall, therefore, the solution according to the invention opens up the possibility of designing the light emission characteristic of a luminaire so that it can also be modified in a simple manner during later operation.
    权利要求:
    Claims (13)
    [1]
    claims
    1. Arrangement for emitting light for a lamp provided for room lighting (100), comprising a plurality of LEDs (11) as light sources and the LEDs (11) associated with optical elements (21,22), wherein the light of a first LED group (11i) through one or more first optical elements (21) and the light of a second LED group (112) by one or more second optical elements (22) is emitted and wherein the intensities of the LED groups (111, 112) for modifying the total light output variable are.
    [2]
    2. Arrangement for emitting light according to claim 1, characterized in that the first and second LED groups (11i, 112) are arranged alternately.
    [3]
    3. Arrangement for emitting light according to claim 2, characterized in that the first and second LED groups (11i, 112) respectively on LED boards (10) are arranged, which are arranged alternately with the associated optics.
    [4]
    4. Arrangement for emitting light according to one of the preceding claims, characterized in that the LEDs (11) which form the first and second LED groups (11 !, 112) are LEDs of the same type.
    [5]
    5. Arrangement for emitting light according to one of the preceding claims, characterized in that the optical elements (21, 22) are reflective elements, for example raster elements.
    [6]
    6. Arrangement for emitting light according to one of claims 1 to 4, characterized in that the optical elements (21, 22) are refractive elements, for example lenses or prisms.
    [7]
    7. Arrangement for emitting light according to claim 6, characterized in that the first and second optical elements (21, 22) are joined together to form a common light emitting element.
    [8]
    8. Arrangement for emitting light according to claim 7, characterized in that the Lichtabstrahlelement is made in one piece.
    [9]
    9. Arrangement for emitting light according to one of the preceding claims, characterized in that the first optics (21) cause a wide light distribution and the second optics (22) a narrow or narrow light distribution.
    [10]
    10. Arrangement for emitting light according to one of the preceding claims, characterized in that at least a portion of the optics (21,22) cause an asymmetric light output.
    [11]
    11. Arrangement for emitting light according to one of the preceding claims, characterized in that it further comprises an operating device for driving the LED groups (11 !, 112).
    [12]
    12 lamp (100) having a device for emitting light according to one of the preceding claims.
    [13]
    13. Luminaire according to claim 12, characterized in that it is a recessed ceiling light. For this 2 sheets of drawings
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    同族专利:
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    DE202014102004U1|2015-07-31|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    EP2211089A1|2009-01-26|2010-07-28|GLP German Light Products GmbH|Apparatus and method for outputting a mixed-colored light beam|
    DK177579B1|2010-04-23|2013-10-28|Martin Professional As|Led light fixture with background lighting|
    DE202012013045U1|2011-10-23|2014-09-09|Martin Professional A/S|Illuminating device with multi-colored light beam|EP3236198B1|2016-04-18|2021-03-10|VITRONIC Dr.-Ing. Stein Bildverarbeitungssysteme GmbH|Switchable line illumination|
    DE102018001653B4|2018-03-02|2021-05-20|H4X E.U.|Luminaire, housing component for a luminaire, as well as a method for producing a luminaire|
    法律状态:
    2020-01-15| MM01| Lapse because of not paying annual fees|Effective date: 20190531 |
    优先权:
    申请号 | 申请日 | 专利标题
    DE202014102004.7U|DE202014102004U1|2014-04-29|2014-04-29|Arrangement for emitting light for room lighting|
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