• 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 a luminaire (100) having two illumination units (10) which are arranged and constructed with respect to a longitudinal axis (I) of the luminaire (100) in such a way that they lie in a plane perpendicular to the longitudinal axis (I) of the luminaire (100). cause a light output facing away from each other, wherein both lighting units (10) about an axis parallel to the longitudinal axis (I) of the lamp (100) extending pivot axis (II) are adjustable.
    公开号:AT15302U1
    申请号:TGM420/2014U
    申请日:2014-12-05
    公开日:2017-05-15
    发明作者:Escourrou Thibaut；Sojer Wolfgang
    申请人:Zumtobel Lighting Gmbh；
    IPC主号:
    专利说明:

    description
    LAMP
    The present invention relates to a lamp according to the preamble of claim 1, which is adapted to emit light in such a way that the so-called. Light distribution curve has two relative to the vertical or longitudinal median plane of the lamp inclined wings over which the light is emitted primarily , In particular, the invention relates to a luminaire, which is used for example in shops or shops and is intended to illuminate shelves.
    A typical application of generic lights are, for example, supermarkets, where the products or goods are arranged in longer, mutually parallel rows of shelves. In order to illuminate the shelves, luminaires are usually used, which are arranged centrally above between two adjacent rows of shelves, for example on the ceiling of the room or also suspended therefrom and are designed such that they obliquely downward their light in two directions facing away from each other, So in each case in the direction of the obliquely located below rows of shelves. The total resulting light emission characteristic of the lamp corresponds to a so-called Batwing distribution, which is characterized by two with respect to the vertical obliquely aligned wing-like maxima in the light distribution curve. The light of the lamp is therefore not primarily down vertically but instead each slightly laterally down in two opposite directions.
    To achieve such a Lichtabstrahlcharakteristik different solutions are known from the prior art. For example, refractive optics in the form of lenses or the like have been developed, which divide the light emitted by the light source or sources in the manner of a beam splitter into two bundles, which are then discharged laterally downwards. Other optical systems are known which influence the light of the lighting means in the manner described above accordingly, wherein it is also known to use for each beam own bulbs.
    A disadvantage of these known solutions, however, is that an adaptation of the light distribution curve to actual conditions on site usually is difficult. Whether the light emitted by the light actually illuminates the shelves below obliquely depends in particular on how well the light distribution curve is suitable for the arrangement of the lamp with respect to the rows of shelves. That is, the Lichtabstrahlcharakteristik should be adapted on the one hand to the distance between the rows of shelves and on the other hand, the distance between the light and rows of shelves. Since in the case of lenses, a change in the light emission characteristic is usually difficult to achieve, this means that the light for the specific application must always be positioned at a suitable height with respect to the rows of shelves, which may be feasible only with great effort.
    It would therefore be desirable to have a certain flexibility in the adjustment of the light distribution curve of such a luminaire, since then greater freedom would exist in terms of the arrangement of the lights. That is, these could now be positioned substantially independent of the distance of the rows of shelves to each other flexibly at a desired height with respect to the shelves to be illuminated, since then only the light distribution curve must be adjusted in a suitable manner.
    In addition, may well be the case that at certain times certain areas of a shelf to highlight specific products targeted or brighter be illuminated. For example, it might thus be desirable to concentrate the maximum of the brightness on the upper third of the shelf, since products should be highlighted in a particularly intensive manner here. Again, this is only possible if an adjustment of the light emission characteristic of the lamp can be made relatively easy by the end user.
    The present invention is therefore based on the object to provide a luminaire of the type described above, in which the light emission characteristic can be adjusted or modified in a relatively simple manner.
    The object is achieved by a luminaire, which has the features of claim 1. Advantageous developments of the invention are the subject of the dependent claims.
    According to the present invention it is provided that the lamp has two lighting units, which are arranged side by side with respect to a longitudinal center plane of the lamp and formed so as to effect in a plane perpendicular to the longitudinal axis of the lamp a light output remote from each other. Each lighting unit is therefore responsible for the delivery of a light cone of the total desired Batwing distribution, which is discharged laterally down, for example, on a row of shelves. In this case, the invention provides that both illumination units are adjustable about a respective pivot axis extending parallel to the longitudinal axis of the lamp.
    According to the present invention, therefore, a luminaire is proposed with two lighting units, wherein the lighting units are arranged side by side with respect to a longitudinal axis of the lamp and formed so as to effect in a plane perpendicular to the longitudinal axis of the lamp a light output remote from each other and wherein according to the invention two illumination units are adjustable about a respective pivot axis extending parallel to the longitudinal axis.
    By the ability to adjust the lighting units at least in a certain angular range, that is, the orientation of the respective maximum of the Batwing light distribution curve can be adjusted. In this case, in particular in the case of the solution according to the invention, it is possible to make an individual adjustment for both maxima of the light distribution curve, so that there is a particularly high flexibility with regard to the adaptation of the light-emitting properties of the luminaire. Thus, not only the light output can be optimized adapted to a specific positioning of the lamp with respect to rows of shelves to be illuminated, but it is also possible, if appropriate, specifically illuminate certain height ranges of a laterally located below the lamp shelf. Preferably, the possibility of adjusting the lighting units is limited to an angular range of about 100 here.
    According to a preferred embodiment of the invention, each lighting unit has lighting means and an associated reflector, wherein the arrangement of the lighting means and the design of the reflector is such that substantially only reflected by the reflector light beams can leave the light. The reflector is used in this case as a so-called back reflector, whereby the possibilities to influence the light output can be improved. Another advantage of this type of light output is that the possibility of glare control is optimized.
    In the bulbs of the lamp according to the invention are preferably LEDs, which are arranged in particular on one or more boards. Again, for reasons of glare has proven to be advantageous in that the boards are arranged so that they are inclined in each possible position of the lighting unit. This prevents a direct view of the LEDs even when viewed from below.
    Further, it can be provided that each lighting unit is associated with an individual heat sink, which is then pivoted together with the lighting unit and in particular thermally coupled to the LEDs. A particularly efficient heat coupling can be achieved in that the LED boards or a support element for the LED boards is designed angled and perpendicular to the support surface for the LEDs aligned leg of the support member or the board in a running in the longitudinal direction of the heat sink recess intervenes. This means that the heat sink also serves to hold the LEDs and the heat dissipation is optimized.
    The reflector of a lighting unit is preferably carried out at least partially curved in a plane perpendicular to the longitudinal axis of the lamp in order to achieve the desired light distribution. In the longitudinal direction of the luminaire, a broad distribution of light is desired, so that here the reflector is designed unchanged, at least over a certain longitudinal section. In order to achieve a glare even in this direction, the reflector then preferably has inclined surface sections at its end regions.
    The lighting units are preferably arranged inside half of a housing whose end faces can be made approximately X-shaped. As a result, the lamp has a particularly appealing and interesting appearance, in spite of which optimal light emission properties are present.
    The invention will be explained in more detail with reference to the accompanying drawings. In the drawings: Figures 1 and 2 are perspective views of a lamp according to the invention; Figure 3 is a sectional view of the lamp according to the invention in a
    Plane perpendicular to its longitudinal axis; Figure 4 is a side view of the lamp; Figure 5 is a bottom view of the luminaire according to the invention and Figure 6 is an enlarged view of the thermal coupling between the heat sink and LED light sources.
    The luminaire according to the invention generally provided with the reference numeral 100 serves, as already mentioned, primarily to be arranged, for example, in shops or shops above shelves and to illuminate the shelves located obliquely below the luminaire. Of course, the lamp could also be used for other purposes, for example, to illuminate the side walls of an elongated passage or the like.
    The luminaire 100 is in this case made relatively compact, but extends despite everything along a longitudinal axis shown schematically in Figure 1 I. At the two end faces of the lamp housing 110 in this case end walls 115 are arranged, which - in particular the representations of Figures 1 and 2 can be removed - have approximately an X-shape. This gives the lamp a special characteristic appearance, which is also emphasized by the manner described below in more detail of the light output.
    In practice, the lamp 100 will be arranged centrally above two mutually parallel rows of shelves and should then illuminate these two rows of shelves. That is, as indicated in Figure 2 is to be achieved by means of the lamp 100, a light output, which is characterized in particular by two laterally obliquely downwardly directed radiation maxima A and B (see Figure 2). This corresponds to a so-called Batwing Lichtvertei-lungskurve, in which therefore the light is not discharged primarily vertically downwards but instead in two opposite beam bundles laterally down.
    In order to achieve this desired Lichtabstrahlcharakteristik and beyond also to open the possibility to influence the orientation of the maxima A, B, the lamp 100 is equipped with special lighting units, which will be described in more detail below.
    Particularly well recognizable these lighting units, which are generally provided with the reference numeral 10, in the sectional view of FIG 3. It is initially apparent that both lighting units 10 side by side back to back with respect to the longitudinal axis of the lamp 100 and the longitudinal center plane are arranged to each other and are designed such that they each generate one of the downwardly laterally directed radiation beams A and B. Both lighting units 10 are made identical, whereby the structure of the lamp 100 is simplified as a whole.
    As a light source for each of the lighting units 10 while LEDs 15 are used, which are each arranged on one or more boards 16. The light emitted by the LEDs 15 light is not emitted directly in the desired direction, but initially primarily emitted in an opposite direction, ie to the longitudinal center plane of the lamp 100 out. Only after the light beams have been reflected by a back reflector 20, they can leave the lighting unit 10 and the lamp housing 110, wherein - as can be seen in Figure 3 - the arrangement of the LED boards 16 and the design of the back reflectors 20 is such that the Light emission takes place primarily obliquely downwards.
    Another essential component of each lighting unit 10 is in a heat sink 25, with the help of which the heat generated by the LEDs 15 during operation of the lamp 100 heat to be dissipated. For this purpose, an efficient thermal coupling between LED board 16 and heat sink 25 is advantageous, which is realized according to a particularly preferred embodiment as shown in the enlarged view of Figure 6. It can be seen that the LED board 16 is arranged on an angled support member 17 which a first web 17! has, on which the circuit board 16 rests. In addition, an approximately perpendicular to the first web 17! aligned second web 172 is provided, which is inserted into a running in the longitudinal direction of the heat sink 25 recess 26 and optionally fixed there. As a result, an extremely efficient thermal coupling is achieved, which allows the dissipation of heat. The heat sink 25 itself is formed in a known manner with a plurality of cooling fins 27 extending in the longitudinal direction, so that the largest possible contact surface with the environment is achieved in order to release the heat to the environment. Of course, other possibilities for coupling between LED board 16 and heat sink 25 would be conceivable. In particular, it would also be possible to design the printed circuit board 16 angled itself and then to couple it to the heat sink 25 in the manner described above.
    Each lighting unit 10 thus consists primarily of the LED lamps 15 and the LED board 16, the rear reflector 20 and the associated heat sink 25. According to the invention it is now provided that the lighting units 10 adjustable within the housing 110 of the lamp 100 are arranged. As can be seen in FIG. 3, the illumination units 10 are suspended in such a way that a pivot axis II running parallel to the longitudinal axis of the luminaire I is formed around which the respective illumination unit 10 can be pivoted. Since a specific light distribution curve for the illumination unit 10 is achieved by the fixed assignment of LEDs 15 to the reflector 20, which has a single, obliquely downwardly directed maximum, this means that by pivoting the entire illumination unit 10, the orientation of the maximum of the light output the lamp can be changed. Ultimately, this means that in the total resulting Batwing light distribution curve of the lamp 100 not only the angle between the two maxima set but for each wing individually its orientation can be set. Regardless of the arrangement of the lamp 100 with respect to the objects or shelves to be illuminated so the light output can always be set in the desired manner. It has been found that preferably the adjustment range for the lighting units 10 can be limited to a certain angle, in particular, a pivoting can be provided by a maximum of 10 °.
    The light output of a single illumination unit 10 is thus characterized - in section perpendicular to the longitudinal axis I of the lamp - by a single beam, the orientation of which can be changed by pivoting the illumination unit 10 as a whole. The orientation and shape of the beam emitted laterally downwards is achieved by the curvature of the reflector 20 and the orientation of the LEDs 15. In this case, it is provided in particular that the LED boards 16 are not completely vertical, but instead are slightly inclined, such that the sinker lower edge is closer to the longitudinal center plane of the lamp 100 as the corresponding upper edge, regardless of the degree of pivoting the associated lighting unit 10. Such a configuration has been found to be advantageous, since in this case, even with a view from the bottom, the LEDs 15 can not be observed directly and therefore no glare effects occur. An additional shielding of the LEDs 15 from the underside is thereby achieved in that the illumination unit 10 has an outside of the LED board 16 extending, extending over approximately half the height side wall 11, which on its underside an inwardly directed, angled Web 12 has. This lower end region of the side wall 11 defines, together with the reflector 20, a light exit opening, via which the light output of the illumination unit 10 takes place.
    With regard to the design of the reflectors 20 is first noted that they are to produce a relatively narrow beam in a plane perpendicular to the longitudinal axis I, which as mentioned by the arrangement of the LEDs 15 and the curvature of the reflector 20 is achieved. In the longitudinal direction, however, the widest possible light distribution should be present to ensure that despite the relatively short length of the lamp 100, a larger section of underlying shelves can be illuminated. This is made possible, first of all, by the fact that the reflector 20 is designed unchanged or translation-invariant with respect to its reflection surface 21 in a central region in the longitudinal direction. However, at its two end regions, it has inclined surface sections 22, which can be seen in particular in FIGS. 2, 4 and 5. They are essentially flat, but in two ways inclined, on the one hand from the inside to the outside, on the other from top to bottom. These surface portions 22 in this case cause a posting in the longitudinal direction I, which is optionally supported by the aforementioned X-shaped end faces 115 of the housing 110, but at the same time because of their tendency to ensure that there are no hard transitions, but instead in the longitudinal direction of the intensity Steadily decreasing towards the end.
    This particular embodiment of the reflectors 20 also results in that in a view of the lamp 100 from below, as shown in Figure 5, again gives a special appearance. In fact, for the case that only the reflection surfaces 21 and 22 can be seen or these reflection surfaces 21, 22 clearly distinguish from the rest of the housing 110, these reflection surfaces lead to a bright luminous, approximately X-shaped area. This can be assisted, for example, by forming the further components of the housing 110 from a dark or black material compared to the reflectors 20.
    Finally, therefore, the luminaire according to the invention has a very interesting appearance also with regard to the area over which the light emission takes place. In spite of all, the luminaire fulfills all the requirements of a luminaire for illuminating, for example, rows of shelves in shops with regard to its light-emitting properties, wherein, moreover, it is also possible to adapt the light distribution, as a result of which the use resp. Usage options are significantly improved.
    权利要求:
    Claims (10)
    [1]
    claims
    1. lamp (100) with two lighting units (10) which are arranged with respect to a longitudinal axis (I) of the lamp (100) side by side and formed in such a way that in a plane perpendicular to the longitudinal axis (I) of the lamp (100) one another effecting remote light emission, characterized in that both illumination units (10) about an axis parallel to the longitudinal axis (I) of the lamp (100) extending pivot axis (II) are adjustable.
    [2]
    2. Lamp according to claim 1, characterized in that the lighting units (10) in an angular range of about 10 ° about the respective pivot axis (II) are pivotable.
    [3]
    3. Luminaire according to claim 1 or 2, characterized in that each illumination unit (10) lighting means (15) and an associated reflector (20), wherein the arrangement of the lighting means (15) is such that substantially only of the reflector ( 20) reflected light rays can leave the light (100).
    [4]
    4. Lamp according to claim 3, characterized in that it is the LEDs (15) are LEDs.
    [5]
    5. Lamp according to claim 4, characterized in that the LEDs are arranged on one or more boards (16), wherein the boards (16) in each position of the associated lighting unit (20) are inclined relative to the vertical.
    [6]
    6. Lamp according to claim 4 or 5, characterized in that each lighting unit (10) additionally comprises a heat sink (25) which is thermally coupled to the LEDs.
    [7]
    7. Lamp according to claim 6, characterized in that the cooling body (25) has a recess extending in the longitudinal direction (26), in which engages an angled support member (17) for the LED boards (16) or the angled board (16) ,
    [8]
    8. Lamp according to one of claims 3 to 7, characterized in that the reflector (20) of a lighting unit (10) in a plane perpendicular to the longitudinal axis (I) of the lamp (100) is at least partially curved.
    [9]
    9. Luminaire according to claim 8, characterized in that the reflector (20) at its end portions inclined surface portions (22).
    [10]
    10. Lamp according to one of the preceding claims, characterized in that the lighting units (10) within a housing (110) are arranged, whose end faces (115) are designed substantially X-shaped. For this 3 sheets of drawings
    类似技术:
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    同族专利:
    公开号 | 公开日
    EP2993394A1|2016-03-09|
    EP2993394B1|2018-03-07|
    DE202014103431U1|2015-10-27|
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    法律状态:
    2020-08-15| MM01| Lapse because of not paying annual fees|Effective date: 20191231 |
    优先权:
    申请号 | 申请日 | 专利标题
    DE202014103431.5U|DE202014103431U1|2014-07-25|2014-07-25|lamp|
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