DE102008006576A1 - Luminaire with self-supporting reflector unit - Google Patents

Abstract

According to the invention, a luminaire is proposed, which has a receiving space for receiving at least one elongate light source (1) and a reflector unit (2) with at least one reflector surface (3, 3a, 3b) arranged next to the light source (1), viewed from the area to be illuminated , 3c), wherein the reflector unit (2) is self-supporting and projections (4) and / or recesses for receiving or holding functional elements of the lamp such as lamp holders, lamp holders, operating devices (7) for lamps, leveling and / or Has mounting elements.

Description

object The present invention is a luminaire which has a receiving space for receiving at least one elongated light source and a Reflector unit with at least one - of which to be illuminated Range seen - arranged next to the light source Reflector surface has.

Luminaires according to the preamble of claim 1 are for example from the DE 100 06 410 A1 the applicant known. Such known from the prior art lamp is in 7 shown. It is under an elongated light source 101 a light influencing element 110 arranged in the form of a raster element. Further, besides the light source 101 another light influencing element 111 arranged in the form of a teillichtdurchlässigen diffuser. Above the diffuser 111 the lamp has a reflector unit 102 on. This lamp is next to the reflector unit 102 via a housing unit 120 , The reflector unit 102 is mounted on the housing unit. In the course of this assembly, it is inevitable that it is at the edge areas of the reflector unit 102 Overlaps with the housing unit 120 There, so that the housing unit 120 ensures disturbing influences on the light image of the luminaire. In addition, the weight of the lamp through the housing unit 120 elevated.

Another lamp according to the preamble of present claim 1 is in the DE 10 2006 026 207 A1 the applicant discloses. In this luminaire, a single light exit element is arranged below the light source and the reflector. This light exit element has a first emission region located substantially in front of the light source and a second emission region separated from the first region, the first and the second emission region having a different light emission characteristic.

Of the The main part of the light is in this case over the first emission area emitted, the light by a grid element blinding (longitudinal and across). The second emission area provides a more discreet Light that underlines the light of the first emission area and a creates a pleasing optical image.

The in the DE 10 2006 026 207 A1 described luminaire also has a housing unit to which all elements such as reflector and light exit element are attached.

task The present invention is now that in the two above mentioned fonts developed lighting concept further. there is especially focused on weight reduction as well as an improvement respected the photo.

These The object is achieved by the specified in the independent claim 1 Invention solved. Advantageous developments of the present Invention are the subject of the dependent claims.

The Lamp according to the invention has a receiving space for receiving at least one elongated light source and a reflector unit with at least one - of which illuminating area seen from - next to the light source arranged reflector surface, wherein the reflector unit is self-supporting is formed and moldings and / or recesses for recording or holder of functional elements of the lamp has. at these functional elements are, for example, lampholders, Lampholders, lamps for lamps, leveling and / or mounting elements.

By the embodiment of the reflector unit as a self-supporting element it comes at the edge areas of the reflector no longer disturbances of the Photograph of the lamp, since there are no fasteners to a Housing unit must be used. The reflector unit is now in contrast to the previously known lights so stable designed that attaches to her fixture for the lamp can be attached, with which the light on a Wall or ceiling is attached.

Preferably the reflector unit is made of aluminum by means of die casting and the reflector surface is then through Applied steaming or painting.

In a preferred embodiment are back formed on the reflector unit cooling fins. These cooling fins allow the effective discharge of the Lamp operating devices and the light sources generated heat.

Further can drill holes on the reflector unit a tool for swinging the leveling unit or to Assembly work may be provided.

One Lamp operating device can either be above the light source be arranged, wherein the reflector unit at the corresponding Make a rectangular recess forms, or Lamp operating devices are at one or both ends of the Receiving space arranged and the reflector unit forms at the corresponding recesses.

Preferably the receiving space is limited by a light exit opening, which is completed by a light exit element.

In In this case, the reflector unit has a circumferential recess or groove for latching with the light exit element and the edge regions of the light exit element are folded upwards or formed angled, wherein the first folded up or angled edge region of the light exit element with the remaining light exit element includes such an obtuse angle, so that the End region of the light exit element is perpendicular to the Abstrahlbereich.

Preferably the light exit element consists of several sub-elements, wherein a first sub-element substantially in a first radiation area arranged in front of the light source and a second sub-element substantially to the side of the light source and in front of the reflector surface is arranged in a second Abstrahlbereich and another light emission characteristic has as the first light exit element. Furthermore, can the first and / or the second subelement in the light emission direction be designed adjustable.

in the second radiation area, next to the lamp and in front of the reflector surface, can arranged an at least part-permeable diffuser and in the first Lichtabstrahlbereich in front of the lamp may be a Lichtverteilelement be arranged, which is preferably a grid element or a perforated plate.

in the The luminaire according to the invention is intended to be based on the accompanying drawings explained become. Show it:

1 a first embodiment of a lamp according to the invention in a perspective view;

2 a cross section through the in 1 illustrated light;

3 a second embodiment of a lamp according to the invention in a perspective view;

4 a cross section through the in 3 illustrated light;

5 a third embodiment of a lamp according to the invention in a perspective view;

6 a cross section through the in 5 illustrated light; and

7 a known from the prior art lamp.

1 and 2 show a first embodiment of the lamp according to the invention. 1 is a perspective view of this lamp and 2 shows a cross section through the lamp.

The lamp shown in these figures has four fluorescent tubes 1 as light sources. However, it is also possible in the context of the present invention, only a single fluorescent tube 1 or another number of fluorescent tubes 1 to use. The use of completely different light sources, such as LEDs, is conceivable.

Above the fluorescent tubes 1 is a reflector unit 2 arranged, which at the bottom of a reflector surface 3 having. The reflector unit 2 is made of aluminum by die casting and the reflector surface 3 then applied by steaming or painting.

According to the invention, the reflector unit 2 self-supporting configured. Accordingly, the reflector unit 2 not be connected to an additional housing unit, which would ensure the installation and the stability of the lamp. Rather, the reflector unit 2 slightly curved. This shape generates a voltage which ensures that the arrangement according to the invention is stabilized.

Furthermore, the reflector unit 2 Recesses and / or projections on which allow the recording or support of functional elements of the lamp. Such a functional element is, for example, a leveling element. The reference number 4 denotes a molding for such a leveling element.

A significant advantage of the lamp according to the invention is that the projections 4 for the leveling elements in the reflector unit 2 are integrated. This can be dispensed with a housing unit.

Across from the known from the prior art lights this construction provides the Advantage that weight can be saved. A weight-reduced Lamp is easier to attach and stands out about it In addition, by lower production costs.

The use of leveling elements is particularly required when installing the luminaire in a suspended ceiling. The leveling elements make it possible to adapt the luminaire to the thickness of the suspended ceiling and thus ensure stable attachment. Various embodiments of leveling elements are in State of the art known and are not the subject of the present invention.

Further, in the reflector unit 2 drilling 5 intended. A tool, such as a screwdriver, can through such a hole 5 be passed. With the help of this tool could also be locked, for example, a leveling element. If the luminaire according to the invention is embedded in a suspended ceiling, then a leveling element can be swung out by passing it through the hole 5 introduced tool is operated. Also with regard to mounting purposes, it makes sense, the reflector unit 2 with corresponding holes 5 equip.

Furthermore, the inventive design of the reflector surface also improves the light pattern of the luminaire. In the known in the prior art lamp, which also in 7 in cross-section, can be seen, the edge region between reflector surface and housing unit is always visible in the photograph. As in the reflector unit according to the invention 2 the underside as a reflector surface 3 is designed, such a transition in the photograph is no longer recognizable.

An improvement of the light image of the lamp is achieved in particular by the fact that with the reference numerals 3a and 3b designated areas of the reflector unit 2 are designed as reflector surfaces. These are surfaces that are not one under the reflector unit 2 arranged light exit element 10 to be covered. The exact configuration of this light exit element 10 will be discussed below.

The area 3a results as an extension of the reflector surface 3 , The area 3b is opposite the reflector surfaces 3 and 3a angled. As well as the surfaces 3a and 3b are reflective, there are no parasitic effects at the edges of the light image of the lamp according to the invention, which arise for example by a non-reflective housing in other known in the art lights.

At the top of the reflector unit 2 are also cooling fins 6 trained, with the help of which the light sources 1 and the lamp operating device generated heat from the interior of the lamp can be dissipated. This concept also allows the effective use of light-emitting diodes as light sources. Light-emitting diodes need an effective system to dissipate the heat, otherwise the semiconductor will be destroyed.

The lamp operating device 7 is also in the reflector unit 2 arranged. For this purpose, the reflector unit 2 a corresponding recess. In the example shown, the lamp operating device 7 directly above the fluorescent tubes 1 arranged. The reflector unit 2 Accordingly, it has a rectangular recess above the light sources 1 ,

The for the lamp operating device 7 provided recess is covered by a cover 19 covered. The underside of this cover 19 is as a reflector surface 3c designed. Thus, the entire bottom is 3 . 3a . 3b . 3c the reflector unit 2 designed as a reflective surface. Accordingly, no contours of the lamp are more recognizable in the photograph of the lamp.

In the in 1 and 2 the embodiment shown is the cover 19 by means of a clamp closure on the reflector unit 2 attached. In the context of the present invention, however, a completely different manner of fastening is also conceivable, for example by means of a plug connection or a screw connection.

In addition, the reflector unit 2 medium 8th for holding or holding a rechargeable battery 9 on. This can ensure, for example, in an emergency, the power supply of the lamp. The means 8th for receiving the battery 9 are arranged at the top of the luminaire so that they do not affect the light pattern of the luminaire.

At the bottom of the lamp is the light exit element already mentioned above 10 which is in a middle area 11 and two outer areas 12 is divided. Preferably, the middle region 11 a different light emission characteristic than the outer regions 12 on how this z. B. from the DE 10 2006 026 207 A1 is known.

The middle area 11 the light exit element 10 can be configured for example as a grid element or as a perforated plate. The use of such raster elements or perforated plates is advantageous, for example, in luminaires in offices with multiple VDU workstations, since the light emitted downwards is to some extent cross-faded and therefore can not cause reflections on the screens.

Preferably, the outer area 12 designed so that here discreet light is emitted, which is that of the inner area 11 accompanied emitted light and creates a more pleasant overall light. For this purpose, the outer area 12 the light exit element 10 be designed as at least partial translucent diffuser.

In the luminaires known in the prior art, the light exit element 10 customary attached to a housing unit. Since in the luminaire according to the invention such a housing unit is dispensed with in order to achieve the above-mentioned advantages, now the reflector unit must 2 be configured such that the light exit element 10 at the reflector unit 2 can be attached. For this purpose, the reflector unit 2 a circumferential recess or groove 13 for latching with the light exit element 10 on.

As particularly advantageous, the in 1 and 2 shown embodiment of the groove 13 and the light exit element 10 proved. Here is the area 14 the light exit element 10 which adjoins the outer area 12 connects at an angle 15 Angled towards the outer area. This angle 15 is preferably blunt. Further, the end area 16 the light exit element, which in the case of a latching in the groove 13 engages, again at an angle 17 opposite the section 14 bent. The angle 17 is preferably also chosen dull.

The areas 14 and 16 preferably have the same Lichtabstrahlcharakteristik on as the second emission area 12 , In the present exemplary embodiment, therefore, they are likewise configured as an at least partial light-permeable diffuser.

By an appropriate choice of angles 15 and 17 will reach that end area 16 perpendicular to the first and second radiation area 11 . 12 the light exit element 10 stands. In this case, the light exit element 10 by a simple vertical movement in the groove 13 be locked. By pulling the latched light exit element 10 down this can turn out of the groove 13 be solved.

If the border areas 14 . 16 the light exit element 10 were not angled upwards and the light exit element 10 would be flat, so would the groove 13 on the sides of the reflector unit 2 be provided. This would on the one hand widen the lamp unnecessarily and on the other hand it would no longer be possible, the light exit element 10 without the use of tools in the groove 13 engage and disengage.

Furthermore, it has been found to be useful, the light exit element 10 around the two obtuse angles 15 . 17 instead of simply bending it at a single point by a right angle. The shape of the invention provides greater stability and provided the range 14 of the light exit element is also designed as at least part-permeable diffuser, is by the angling at an obtuse angle 15 the light image of the lamp is much less disturbed than would be the case with a bend at a right angle.

3 and 4 show a second embodiment of the present invention. The same reference numerals designate identical elements.

At the in 3 and 4 shown lamp is the lamp operating device 7 no longer above the light sources 1 arranged but rather elongated recording rooms 18 for a lamp operating device 7 provided at the two opposite ends of the light chamber. In this case, it is also necessary to provide the recesses with a corresponding cover (not shown) in order to close the reflector surface.

In the second embodiment, further, the cooling fins 6 designed significantly larger. This allows effective and good dissipation of the lamp operating devices 7 generated heat.

A third embodiment of the luminaire according to the invention is finally in the 5 and 6 shown. Again, the reflector unit 2 designed such that it receives various components of the lamp. These include the batteries 9 . 19 , the lamp operating unit and leveling elements, for the appropriate formations 4 are provided.

The aluminum die casting, which is the reflector unit 2 forms, is configured in this embodiment, that it replicates the shape of a light well. Again, the bottom is 3 . 3a . 3b . 3c the reflector unit 2 designed as a reflective surface.

A cover 19 covers the lamp operating device 7 as well as mounting elements 20 , The underside of the cover 19 is as a reflector surface 3c designed. Outwardly, now close the reflector surfaces 3 . 3a and 3b at.

Compared to the in 1 and 2 Shown embodiment, the cover is much larger here. This is due to merely constructive requirements, since the lamp operating device 7 now not centered in the lamp is arranged.

The side walls 21 . 22 . 23 the reflector unit shown 2 are also larger in this embodiment and they form the shape of a light well after. Their main task, however, continues to be the formation of recesses and formations 4 for holding or holding functional elements of the luminaire.

In the third embodiment, in contrast to the known prior art again the decisive advantage is that the underside of the reflector unit 2 as a reflector surface 3 . 3a . 3b . 3c is designed. For this purpose, the bottom was 3c the cover 19 as well as the bottom 3 . 3a . 3b the reflector unit designed reflective. This also includes the outer part 3a . 3b the reflector unit 2 which is not from the light exit element 10 is covered.

All in all thus generates the lamp according to the invention a Photograph in which no contours of the luminaire are recognizable, and thus for the viewer very evenly and pleasant.

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - DE 10006410 A1 [0002]
• - DE 102006026207 A1 [0003, 0005, 0043]

Claims (17)

Luminaire comprising a receiving space for receiving at least one elongated light source ( 1 ) and a reflector unit ( 2 ) with at least one - viewed from the area to be illuminated - next to the light source ( 1 ) arranged reflector surface ( 3 . 3a . 3b . 3c ), characterized in that the reflector unit ( 2 ) is self-supporting and moldings ( 4 ) and / or recesses for receiving or holding functional elements of the lamp, such as lamp holders, lamp holders, operating devices ( 7 ) for lamps, leveling and / or mounting elements. Luminaire according to one of the preceding claims, characterized in that the reflector unit ( 2 ) is made of aluminum by die casting and the reflector surface ( 3 . 3a . 3b . 3c ) is applied by steaming or painting. Luminaire according to one of the preceding claims, characterized in that the back of the reflector unit ( 2 ) Cooling fins ( 6 ) are formed. Luminaire according to one of the preceding claims, characterized in that on the reflector unit ( 2 ) Drilling ( 5 ) are provided for performing a tool for pivoting the leveling unit or for assembly work. Luminaire according to one of the preceding claims, characterized in that a lamp operating device ( 7 ) above the light source ( 1 ) is arranged and the reflector unit ( 2 ) forms a rectangular recess at the corresponding location. Luminaire according to one of claims 1 to 5, characterized in that the lamp operating devices ( 7 ) are arranged at one or both ends of the receiving space and the reflector unit ( 2 ) forms a recess at the corresponding location. Luminaire according to one of the preceding claims, characterized in that the receiving space defines a light exit opening, which by a light exit element ( 10 ) is completed. Luminaire according to claim 7, characterized in that the reflector unit ( 2 ) a circumferential recess or groove ( 13 ) for latching with the light exit element ( 10 ) having. Luminaire according to claim 8, characterized in that the edge regions ( 14 . 16 ) of the light exit element ( 10 ) are flipped up. Luminaire according to claim 9, characterized in that the folded-up edge region ( 14 ) of the light exit element ( 10 ) with the remaining light exit element ( 12 ) an obtuse angle ( 15 ). Luminaire according to one of claims 8 or 9, characterized in that the end region ( 16 ) of the light exit element ( 10 ) perpendicular to the radiation area ( 11 . 12 ) stands. Luminaire according to one of claims 7 to 11, characterized in that the light exit element ( 10 ) consists of a plurality of sub-elements, wherein a first sub-element substantially in a first radiation area ( 11 ) in front of the light source ( 1 ) and a second sub-element substantially laterally of the light source ( 1 ) and in front of the reflector surface ( 3 . 3a . 3b . 3c ) in a second radiation area ( 11 ) and has a different light emission characteristic than the first light exit element. Luminaire according to claim 12, characterized in that that the first and / or the second sub-element in the light emission direction are adjustable. Luminaire according to claim 12 or 13, characterized in that in the second radiation area ( 12 ), next to the light source ( 1 ) and in front of the reflector surface ( 3 . 3a . 3b . 3c ), an at least teillichtdurchlässiger diffuser is arranged. Luminaire according to one of claims 12 to 14, characterized in that in the first Lichtabstrahlbereich ( 11 ) in front of the light source ( 1 ) A light distribution element is arranged. Luminaire according to claim 15, characterized in that in that the light distribution element is a raster element. Luminaire according to claim 15, characterized in that in that the light distribution element is a perforated plate.