WO2009121559A1

WO2009121559A1 - Lamp

Info

Publication number: WO2009121559A1
Application number: PCT/EP2009/002337
Authority: WO
Inventors: Dagmar Bettina Kramer; Carsten Schaffarz
Original assignee: Dagmar Bettina Kramer; Carsten Schaffarz
Priority date: 2008-03-31
Filing date: 2009-03-31
Publication date: 2009-10-08
Also published as: DE102008016697A1

Abstract

The invention relates to a lamp, comprising a housing bottom (1) and a housing top (2), wherein the housing top (2) has at least one light emitting opening (13), wherein the housing bottom (1) has a groove (8) along the longitudinal extension thereof in the inner bottom region, particularly in the center relative to the width of the bottom region, a printed circuit board (9) that has illumination means (11),particularly light emitting diodes, disposed thereon in an equidistant and electrically interconnected manner being inserted into said groove. The invention further relates to a system comprising such a lamp and a wall fastening rail, the wall fastening rail comprising two rail elements, wherein a first rail element can be fastened to the outer base of the lamp and has a convex/concave connecting region, which has a cross-section in the shape of a pitch circle perpendicular to the longitudinal extension, and wherein a second rail element can be fastened to a wall and has a corresponding concave/convex connecting region, which has a cross-section in the shape of a pitch circle perpendicular to the longitudinal extension, wherein the rail elements are connected to each other at the connecting regions and can be rotated relative to each other about an axis parallel to the longitudinal extension, at least in partial sections.

Description

lamp

The invention relates to a luminaire, comprising a lower housing part and an upper housing part, wherein the upper housing part has at least one light exit opening. The invention further relates to a system of such a lamp and a wall mounting rail.

Luminaires of the type mentioned above with Gehäusober- and -unterteil, wherein the upper housing part has at least one light exit opening, are well known in the art. For example, lights with neon lights are used as bulbs in this design. In this light, an upper housing part, for example, completely translucent, so be transparent, executed. Such an upper housing part is understood as an upper housing part according to the invention with at least one light exit opening. However, it can also be provided that an upper housing part per se is not transparent and has at least one discrete light exit opening, e.g. by recesses, which may optionally be closed transparent.

Luminaires of this known type usually have a complicated internal structure in order to provide installations such as power supply lines, holders for lighting devices and electronic components. Object of the present invention is to provide a luminaire of the aforementioned generic type, which is easy to manufacture and preferably in any, the application wishes corresponding lengths can be provided. In addition, it is an object of the invention to provide a system which permits a variable assembly, in particular variably adjustable directions of the emitted light with these lights.

The object is achieved by a lamp of the generic type, in which the lower housing part along its longitudinal extent in the bottom area, in particular centrally relative to the width of the bottom portion, a groove, in which a printed circuit board with equidistantly arranged and electrically connected lighting means, in particular Light-emitting diodes, is inserted. In this case, the inner width of the groove is preferably adapted to the outer width of the printed circuit board or only slightly larger.

A luminaire of this type according to the invention has the advantage that the lower housing part can be configured in a simple manner and here a prefabricated printed circuit board can be used with regard to the luminous means and their electrical interconnection. Such a printed circuit board has illuminants arranged equidistantly thereon, such as light-emitting diodes, and the associated printed conductors, in order to electrically connect the lighting means, in particular light-emitting diodes, for example with one another and the electronics required for operation, e.g. also in the form of electrical circuits (such as constant current sources).

Such a so-called printed circuit board, for example, as a rigid printed circuit board, in particular such may be formed with a metal core, or as a flexible conductor strip, for example of a polyimide film or PET or PEN film, which also each carry the printed conductors and circuit components can, however, bendable against rigid conductor tracks and thus, for example, are also rewindable. It can be provided that such a flexible conductor strip can be cut to application-specific lengths, so that a user can create lights in application-specific length. In this case, provision can be made, for example, for a number of successive light sources to be connected to an electrically series-connected group of light sources on a flexible conductor strip used with the light sources, adjacent groups of light sources being connected in parallel with each other, so that here It is possible to separate such a flexible conductor strip between two groups of lamps and feed into the resulting ends of the respective conductor strips the voltage necessary for operation. Such a conductor strip may accordingly have multiples of the lengths occupied by a group of light sources on the conductor strip. A flexible conductor strip can be prefabricated, for example, in lengths of several meters, in particular wound up.

A rigid circuit board may e.g. be plugged together with other same circuit boards through connectors to a total circuit board of a desired length. Again, each circuit board may have a group of bulbs in the manner described.

In the following, only the term of the printed circuit board is used, under which both rigid printed circuit boards and flexible conductor strips are understood.

A luminaire according to the invention, in which a printed circuit board with lamps arranged thereon is used, is therefore particularly advantageous because the position of the luminous means or the printed circuit board to be mounted is precisely predetermined by the groove embedded in the floor area during installation. Thus, in the manufacture of such a luminaire, the circuit board, which can be supplied, for example, from a coil during manufacture, merely inserted into the intended groove and secured therein. Here, a fastening can be done for example by gluing, for which either an adhesive is previously introduced into the groove or preferably the Printed circuit board has a self-adhesive back. Thus, for example, only a protective film needs to be removed from the rear side, in order then to position the printed circuit board in the groove.

According to the invention, it is provided in a particularly preferred embodiment that the depth of the groove is at least substantially adapted to the height of the circuit board. Thus, it can be achieved that after inserting the printed circuit board whose top is aligned with the top of the bottom portion in the housing base or just below it. Preferably, for this purpose, the groove relative to the given bottom region has a depth of up to 1 mm, preferably 0.3 to 0.7 mm, preferably 0.5 mm. A depth of 0.5 mm is preferred here, since usually flexible conductor strips with such a thickness can be manufactured.

In a further preferred embodiment, it may be provided that the groove, in which the circuit board is inserted with the lighting means, along its two groove walls has a recess. Such a depression thus extends directly at the region of the groove walls over the entire length of the groove in the longitudinal direction, in particular in order to form a shadow gap, so that the position of the groove can be better recognized within the bottom region during assembly. Due to the small depth in the above-mentioned region of the groove, this is otherwise difficult to detect for a person assembling.

In order to achieve not only the universal Ablängbarkeit of the flexible conductor strip or the universal Aneinandersteckbarkeit the rigid circuit boards and a universal length of the mounted light, it may be provided to make housing lower part and housing upper part also in any length to be cut to length. For this purpose, it may be provided in a preferred embodiment of the invention that the lower housing part and the upper housing part are formed as extruded profiles, for example made of aluminum or a plastic. In this case, both housing parts in a preferred embodiment have a substantially U-shaped cross-section with a respective base region as well lateral walls or thighs. In this case, it is accordingly provided that the inner base region of the lower housing part forms the bottom region with the aforementioned groove and the base region of the upper housing part, which has at least one light exit opening. On account of the design as extruded profiles, a respective housing upper or lower part therefore has the same cross-section at each location of its longitudinal extension, so that such profiles can be cut to any desired length. The length of the upper housing part and lower part can thus be easily adapted to the length of the circuit board to be used therein with the preferably equidistantly arranged lamps.

In a further preferred embodiment, it can be provided that the housing upper part also has equidistant arrangement of light sources and equidistant light exit openings. In this and also not equidistant arrangements, the housing upper part may have a number of light exit openings, which corresponds to the number of lamps on the circuit board. In this case, it can be provided that each light exit opening is opposite to a light source, in particular on its optical light emission axis. This ensures that in the electrical control of the light source on the circuit board, the light that emits each light source is emitted through the light exit openings optimally to the outside.

In a possible preferred development, it is provided that each light source, in particular each LED is surrounded or covered by a light guide, the lower end of which rests on the floor area, in particular attached to this and by the upper end of the light source from a respective light exit opening in Housing top is herausleitbar. Here is ensured by such a light guide, that the light which emits a respective lamp is led out without significant losses from the light. For this purpose, the light guide body preferably has properties of an optical waveguide. Likewise, such a light guide can form a reflector or an optical lens, with which the Lichtabstrahlcharakteristik the lamp is defined with respect to each individual light source. Thus, it may be provided here, for example, to use within such a light with a number of n bulbs in each light source a light guide of the same kind, so that the light emission characteristic of the light from the respective light exit opening is the same for all bulbs. Alternatively, it can also be provided to use light guide bodies of different types in different light sources and thus to provide different characteristics of the light beam, which is generated by a respective light source, within the same light at the respective light exit openings.

In order to achieve an optimal light emission characteristic, it is important to ensure that a light guide body is optimally positioned relative to the light source, in particular if it is a light emitting diode. To ensure this during assembly, it can be provided in a preferred embodiment of the luminaire according to the invention that the groove in the bottom region of the housing upper part, in which the circuit board is inserted, is arranged centrally between two arranged on the bottom region parallel walls, along the longitudinal extent the lamp run. Thus, it can be ensured here during assembly that a light guide body, in particular each light guide body, is kept centered relative to the width of the floor area, ie in a direction perpendicular to the longitudinal extent, by the parallel walls relative to the respectively covered lighting means.

For such a centering, it is preferably provided that a lower outer edge region of a light guide body in each case abuts against one of the parallel walls. It is sufficient if such a wall protrudes only slightly from the ground, for example only in a range of 0.5 to 3 mm. The inner distance of the parallel walls is thus chosen so that it corresponds to the outer width of a respective light guide body. Thus, such a light guide, in particular substantially form-fit, inserted between the two walls and thus centered above the illuminant can be arranged. It can be provided, for example, that a light guide is held only by the insertion between the walls in position or it is ensured by an additional attachment that such a light guide remains in its position. For example, a light guide can be glued to the floor area, for example by a self-adhesive coating on the bottom, which comes into contact with the floor area.

In a further preferred embodiment, it can also be provided that, alternatively or in addition to the previous embodiments, the inner edge region of a light exit opening in the housing upper part surrounds an upper region of the light guide body. For example, in this construction it is ensured that a light guide body rests with its upper end in the light exit opening. This also ensures that a light guide body remains in its position, since the light guide body is arranged immovably relative to the upper housing part by the border of the light exit opening.

Here, it can also be provided, for example, that the light guide body is stepped in cross section in an upper region, in particular while maintaining the basic cross-sectional shape, wherein then only the upper tapered region of the light guide is arranged in the aforementioned light exit opening and continue the upper housing part with his upper inner wall at the same time rests on the stage of the light guide body, at which the rejuvenation takes place. Thus, the light guide is firmly bordered between the upper housing part and the lower housing part.

In the upper housing part, it may further be provided that the light exit opening are introduced into a groove bottom of a groove which is located on the outside of the housing upper part. For example, here is the Possibility to insert in this groove a cover sheet to close the light exit openings to the outside, in particular moisture-proof. This cover film can be an at least partially transparent cover film, wherein it can be provided that the groove depth is adapted to the thickness of this cover film.

This ensures that after inserting or securing the cover in this outer groove, the top of the cover to the upper edge of the two-sided groove walls is flush, so that there is a harmonious appearance of the lamp. Again, it may be provided that the cover has a self-adhesive coating, e.g. which is arranged only in the areas surrounding the light exit openings, that surrounds the transparent areas of the cover, these transparent areas are adapted to the light exit openings in the upper housing part with respect to their design and their respective distance.

By this type of attachment, in particular with a bond, a moisture resistance to the environment is achieved, so that various IP classes can be achieved.

In order to achieve such tightnesses also between the upper housing part and the lower housing part, it can furthermore be provided that the upper housing part and the lower housing part are sealed together in the leg regions of their basic U-profile form. For example, sealing lips may be arranged in these leg regions, so that the legs of the lower housing part and the upper housing part bear tightly against one another as soon as they are joined together.

Furthermore, it is provided in the luminaire according to the invention, if it is formed from cut extruded profiles, to close the upper housing part and the lower housing part after connection to the two-sided ends. For example, the assembled housing bottom and Upper parts must be closed at the ends by caps, which are screwed sealed on the ends.

These may be blind caps which are sealed to the end faces, or else such caps may also have functions such as providing a cable passage, or it may be provided that a plug or socket member is disposed in such cap it can be provided that such a cap member, in particular in a lower region, has at least one fastening tab in order to use such a cap a lamp, eg to be attached to a wall.

In particular, when it is intended to equip at least one of the end caps of such a luminaire according to the invention with a female or a male element, it may be provided that a cable for the purpose of power supply with a corresponding socket / plug element to the lamp of this type according to the invention attachable is. Thus, via the plug or socket element, a voltage supplied by the cable can be electrically connected to the printed circuit board arranged in the luminaire according to the invention and thus take care of the voltage supply to the lighting means. It can be provided that by an external low-voltage feeder, a direct connection between socket or plug element and the circuit board takes place or it can be provided that within such a lamp according to the invention, a power supply or a dimmer arrangement is arranged, which ensures a voltage conversion care , so that, for example, a feed with usually 240 volts mains voltage can be done. For example, it may be provided here to use a power supply, which converts the mains voltage of 240 volts to low voltage of 24 volts or even 12 volts and in particular provides as a DC voltage available. In a preferred embodiment, it can also be provided here that luminaires of this type according to the invention, which have a cap with a socket / plug element on at least one side, can be lined up, for example by a socket element of an end cap of a first luminaire having a plug element of an end cap a second adjacent light is connected. Thus, juxtaposition of lights according to the invention can be achieved by plug connections between the end caps. In this case, the plug-in connection not only contributes to a mechanical juxtaposition, but it is particularly ensured that the electric voltage is passed through the connector for operation between the various lamps according to the invention.

In one possible refinement, provision may be made for the lower housing part to have cooling fins extending in the longitudinal direction on the outside and the groove base with the printed circuit board lying opposite one another. This ensures that heat which is generated in the circuit board is guided through the preferred metallic groove bottom to the outside and is discharged through the cooling fins effectively to the environment.

In a further embodiment, it can also be provided that the lower housing part on the outside has a profiling along the longitudinal extent, by means of which it can be placed on a wall mounting rail. Thus, for example, it may be provided that first a wall mounting rail is fastened to a wall, wherein such a wall mounting rail, for example, may have a particular over the entire length extending projecting tab on which the lower housing part can be placed with its profiling. For example, the profiling may for this purpose have an undercut wall region into which the hook of the wall fastening rail projecting from the wall hooks. A lower, projecting from the wall wall portion of the mounting rail can engage in a groove which is provided in the lower housing part, wherein by a screw through the groove wall a clamping connection between the wall mounting rail and the lower housing part can be achieved so that it is firmly mounted in the wall mounting rail.

The erfϊndungsgemäße object of a variable attachment is also achieved by a system of a lamp of the type mentioned above and a wall mounting rail, it being provided here according to the invention that the wall mounting rail comprises two rail elements, wherein a first rail element fastened / fastened to the outer bottom of the lamp is, for example, as described above, and wherein said first rail member has a convex or alternatively a concave connection portion which is formed in a part-circular cross-section perpendicular to the longitudinal extent and wherein a second rail element fastened / fixed to a wall and a corresponding, therefore concave or ., Has alternatively convex connecting portion, which is also part-circular in cross-section perpendicular to the longitudinal extent, wherein the pitch circle shapes are similar to each other in terms of the radius of inner and outer surfaces and where wherein the rail elements are connected to one another at the connection regions, so that they are rotatable at least partially in relation to one another about an axis parallel to the longitudinal extent.

It can thus be ensured that, with a system of this type, a luminaire mounted on a wall can radiate the light to one another in arbitrarily adjustable directions by displacement or rotation of the first and second rail elements.

Embodiments of the invention are illustrated in the following figures. Show it:

Figure 1 is an overview of a lamp according to the invention

FIG. 2 shows a detailed representation of an end region of a device according to the invention

Figure 3 shows a lamp according to the invention with six light exit openings Figure 4 shows a lamp according to the invention with three light exit openings

Figure 5 shows a lamp according to the invention with an end cap, the lower

Fastening tab, Figure 6 has a lamp according to the invention with an end cap, the one

Plug element, Figure 7, the Aneinanderreihbarkeit of adjacent lights

End caps, the corresponding plug or

Have socket elements

1 shows an overview of a luminaire according to the invention with a lower housing part 1 and an upper housing part 2. Here housing lower part 1 and upper housing part 2 are formed as extruded profiles, for example of aluminum or another material and both have a substantially U-profile shape, wherein the leg regions the two profile shapes overlap each other and in which case, for example, a seal may be inserted in the overlapping region 3 in order to ensure moisture protection.

Here, the upper housing part on the inside of the two leg portions on a profiling, which serves to receive the thread of mounting screws, which extend through holes 5 in end caps 6. Thus, after the assembly of the lower housing part 1 and the upper housing part 2 end caps 6 can be attached in each case at the ends.

The particular embodiment of the invention can be seen here, in particular with reference to Figure 2, that the inner bottom portion 7 of the housing base 1 has a groove 8, the groove bottom is lowered relative to the bottom portion 7, so that the groove 8 has a depth substantially , as it corresponds to the thickness of a inserted into the groove 8 flexible conductor strip 9 or a rigid circuit board. So here it is ensured that the surface of the flexible conductor strip 9 or the rigid circuit board either protrudes behind the surface of the bottom portion 7 or is formed with this aligned.

It can be seen here that the width of the conductor strip 9 and the rigid circuit board and the inner width of the groove 8 is adapted to each other, so that by inserting the conductor strip 9 and the rigid circuit board in this groove 8, the flexible conductor strip / the rigid circuit board automatically optimally positioned in the housing base. For the purpose of better visual recognition, it is additionally provided here that in the region of the two groove walls, the bottom of the groove 8 has a respective depression 10, so that a shadow gap results and thus for a person carrying the conductor strip 9 / the rigid printed circuit board into the housing part 1 inserts, this flat groove 8 is easier to see because the wall area delimited by the shadow gap 10 with a higher contrast to the bottom portion 7.

It can be seen here that the flexible conductor strip 9 / the rigid printed circuit board has mounted on its surface, in particular equidistant light-emitting diodes 11. The light emitting diodes 11 have an upwardly directed light emission characteristic, so that the light of these light emitting diodes 12 can emerge after passing through the light guide 12 from the light exit openings 13 of the housing upper part 2.

The light guide 12 here form a lens optics, with which the radiation characteristic of the light of each light emitting diode can be influenced or specified. Here it can be seen that a light-guiding body 12 with its lower region rests on the bottom region 7. For example, it can be adhesively attached here. Furthermore, it is clear here that the mutually opposite side regions 12a of the light guide body have a distance from each other, as it corresponds to the inner distance between the walls 14, which rise from the bottom portion 7 of the lower part 1 upwards. Thus, the light guide 12 are centered by the walls 14, which extend on both sides parallel to the groove 8, based on the width of the housing base relative to the light emitting diodes 11. Another attachment and positioning takes place in that here, for example, the upper edge region 12 b of a light guide body 12 is encompassed by the inner edge of the light exit opening 13.

FIG. 1 and in particular also FIG. 2 further shows that the outer upper side of the upper housing part 2 has a groove 15 with delimiting outer walls 15a, which extends substantially over the entire width of the upper housing part, except for remaining edge regions, and is provided here around one Cover, in particular cover film to receive, which is transparent at least in the region of the outlet openings 13 and thus the light exit openings 13 transparent, but moisture-tight closes. The thickness of the cover and the groove depth are also here preferably adapted to each other.

Visible here is the advantage given that due to the formation of upper housing part and lower part as extruded profiles they can be cut in any length, wherein furthermore, as mentioned above, the Lichtleitband in different, optionally arbitrary or at least discrete lengths between groups of light emitting 11th is cut to length. Thus, luminaires according to the invention in various lengths can be produced in each case with the same basic components from lower housing part, upper part, end caps, conductor strip / printed circuit board, light guide body and cover or covering film.

The figure 2 shows here in a sectional view further also the possibility to attach a lamp according to the invention by means of a wall profile 16 on the wall, for which first the wall profile 16 is fixed to the wall and then the lower housing part 1 with a designated profiling, which undercut Wall portion 1b, can be placed on a projecting, longitudinally extending hook portion 16a of the rail. The wall mounting rail 16 has in a front end region here a bent wall 16 b, which can engage in a groove profiling, which is located along the longitudinal extent parallel behind a front wall portion 1c of the housing base 1. Thus, on the one hand the bent wall portion 16b of the mounting rail is covered by this wall portion 1c and on the other hand, the wall portion 1c have through holes with an internal thread, so that grub screws 17 can be screwed in here to clamp the housing base to the rail 16 to secure.

It can also be seen that on the outside of the groove bottom of the groove 8 with the conductor strip parallel to the longitudinal direction extending heat conducting fins 18 are arranged.

3 shows an overview of a luminaire according to the invention, whose upper housing part 2 has six light exit openings 12, of substantially square cross section, wherein under each of these light exit openings 13, a light guide 12 is located, which covers a light emitting diode 11, which is not visible in this illustration ,

FIG. 4 shows an alternative embodiment, in which only three light exit openings 13 and the same number of light guide bodies 12 are provided with respect to FIG. Here, accordingly, the conductor strip 9 may have a smaller number of light-emitting diodes 11 or else only every second light-emitting diode 11 is used for the purpose of light emission.

FIGS. 3 and 4 show here that a luminaire according to the invention has end caps without any further function. Here, for example, a rear end cap 6 have a power supply, not shown. The front end cap 6 has a closed wall except for the bores 5 for screw fastening to the housing upper part in the profiling 4 provided for this purpose. In contrast, FIG. 5 shows another alternative embodiment of an end cap 6, which has a fastening tab 17 with two elongated slots 18 at its lower region, such that a luminaire according to the invention with such an end cap without fastening rail, as was explained with reference to FIG. 2, on a wall can be attached.

In an alternative embodiment, FIG. 6 shows an end cap 6 which has a socket or plug element 19 on its front side. Such a male or female member 19 may be externally connected e.g. be supplied by a cable having a corresponding plug or socket, electrical voltage in the interior of the housing to supply the LEDs of the conductor strip or the rigid circuit board. FIG. 7 also shows the possibility here that adjacent luminaires according to the invention with end caps 6, which have mutually corresponding plugs or sockets 19, can be directly connected to one another so that they are mechanically connected to one another and also electrically connected to one another that is, the voltage is transferred from a socket to the adjacent connector and thus the LEDs of an infected further lamp module are supplied with energy.

It is clear from the description that a luminaire according to the invention is so far universal and simple than that it has a structurally simple design, which is essentially achieved by extruded profiles of a preferred form, being characterized by the configuration with the grooves described above a particularly easy installation of the flexible light guide and the light guide body required for the lamps used is achieved.

With regard to all embodiments, it should be noted that the technical features mentioned in connection with an embodiment can not only be used or are used in the specific embodiment, but also in the respective other embodiments. All disclosed technical features This description of the invention are to be classified as essential to the invention and can be combined with one another or used in isolation. It is understood throughout the disclosure with the mention that a feature may be provided or a method step can be performed also an embodiment of the invention in which the feature in question is provided or a respective method step is performed.

Claims

claims

1. Luminaire comprising a housing lower part (1) and an upper housing part (2), wherein the upper housing part (2) has at least one light exit opening (13), characterized in that the lower housing part (1) along its longitudinal extent in the inner bottom area, in particular centered on the width of the bottom region, a groove (8), in which a printed circuit board (9) with in particular equidistantly arranged and electrically interconnected lighting means (11), in particular light-emitting diodes, is inserted.

2. Lamp according to claim 1, characterized in that it is the printed circuit board (9) is a flexible conductor strip (9) or a rigid circuit board (9), preferably metal core board, in particular with a thickness of 0.5mm to 1mm, in particular wherein a rigid printed circuit board (9) is connectable to one another via connectors with other rigid printed circuit boards (9).

3. Lamp according to claim 1, characterized in that the flexible conductor strip (9) can be cut to application-specific lengths, in particular of a pre-assembled length of several meters, so that lights can be created in application-specific length.

4. Lamp according to claim 1, characterized in that the groove (8) relative to the surrounding bottom region (7) has a depth of 0.2 to 1 mm, preferably 0.3 to 0.7 mm, particularly preferably 0.5 mm ,

5. Lamp according to one of the preceding claims, characterized in that the groove (8) along its two groove walls has a recess (10), in particular for forming a shadow gap.

6. Lamp according to one of the preceding claims, characterized in that the groove (8) is arranged centrally between two on the bottom region (7) arranged parallel walls (14) which extend along the longitudinal extent.

7. Lamp according to one of the preceding claims, characterized in that each lighting means (11) by a light guide (12) is surrounded or covered, the lower end of which rests on the bottom portion (7), in particular attached thereto, and by the upper End of the light source (11) from a respective light exit opening (13) in the upper housing part (2) can be derived.

8. Luminaire according to one of the preceding claims, characterized in that a light guide (12) forms a reflective or transmissive optics, in particular an optical lens, with respect to which the Lichtabstrahlcharakteristik the lamp with respect to each individual illuminant (11) is defined.

9. Luminaire according to one of the preceding claims, characterized in that a light guide (12), in particular each light guide (12), with respect to the width of the bottom portion through the parallel walls (14) relative to the covered lighting means (11) is kept centered ,

10. Luminaire according to claim 9, characterized in that a lower outer wall region (12a) of a light guide body (12) in each case bears against one of the parallel walls (14).

11. Luminaire according to one of the preceding claims, characterized in that the inner edge region of a light exit opening (13) in the upper housing part (2) an upper region of a Lichtleitkörpers (! 2) surrounds, in particular so that a light guide body (12) with its upper end in the light exit opening (13) rests.

12. Lamp according to one of the preceding claims, characterized in that the housing upper part (2) has a number of light exit openings (13) corresponding to the number of lamps (11) on the circuit board (9), in particular on the flexible conductor strip (9) , wherein each light outlet openings (13) is opposite to a lighting means (11), in particular on its optical light emission axis.

13. Light according to one of the preceding claims, characterized in that the light outlet openings (13) in a groove bottom of a groove (15, 15 a) are introduced, which is arranged on the outside of the housing upper part (2).

14. Luminaire according to claim 13, characterized in that the groove depth of the thickness of an at least partially transparent cover film is adapted, which is fixed in the groove (15,15a) to cover the light exit openings (13), in particular glued.

15. Luminaire according to claim 14, characterized in that the transparent cover film, the light outlet openings (13) to the outside, in particular moisture-tight, closes.

16. Luminaire according to one of the preceding claims, characterized in that the cover film is made partially transparent only in the region of the upper-side coupling-out plane of the light guide body (12).

17. Luminaire according to one of the preceding claims, characterized in that the cover film, in particular moisture-proof, is applied in several individual pieces on the outside of the upper housing part.

18. Light according to one of the preceding claims, characterized in that the lower housing part (1) and the upper housing part (2) are formed as extruded profiles, in particular with a substantially U-shaped Cross-section, wherein in the upper housing part (2) equidistant light exit openings (13) are introduced.

19. Luminaire according to one of the preceding claims, characterized in that the assembled housing lower and upper parts (1, 2) are closed at the ends by caps (6), in particular, which are screwed sealed onto the ends.

20. Luminaire according to claim 19, characterized in that a cap (6) has a cable passage or a plug / socket element (19) or at least one fastening tab (17) at the lower region.

21. Light according to claim 20, characterized in that on a cap (6) with a plug / socket element (19) a cable with a corresponding socket / plug element (19) or a cap (6) with a socket / plug element (19) of a neighboring light can be plugged.

22. Luminaire according to one of the preceding claims, characterized in that the assembled housing lower and upper parts (1, 2) are sealed together in the leg regions of their basic U-profile shape.

23. Luminaire according to one of the preceding claims, characterized in that it is connectable to an adjacent lamp by means of a flexible or rigid corner connector at an angle.

24. Luminaire according to one of the preceding claims, characterized in that it comprises a control electronics and / or a power supply / voltage converter, by means of which a voltage of 90 to 240V to 24VoIt or 12 volts is convertible, in particular as a DC voltage.

25. Luminaire according to claim 24, characterized in that the control electronics and / or the power supply / the voltage converter directly in the housing upper and lower housing part (1, 2) of the lamp is integrated.

26. Luminaire according to one of the preceding claims, characterized in that the control electronics and / or the power supply / the voltage converter is designed as a separate component, in particular with the same housing (1,2) and end caps (6) as a lamp, and to a Light is attachable.

27. Luminaire according to one of the preceding claims, characterized in that the lower housing part (1) on the outside and the groove bottom (8) opposite each other in the longitudinal direction extending cooling fins (18).

28. Luminaire according to one of the preceding claims, characterized in that the lower housing part (1) on the outside has a profiling (1b) along the longitudinal extent, by means of which it can be placed on a wall mounting rail (16).

29. System of a lamp according to one of the preceding claims and a wall mounting rail, characterized in that the

Wall mounting rail comprises two rail elements, wherein a first rail member is attachable to the outer bottom of the lamp and having a convex / concave connection portion which is part-circular in cross-section perpendicular to the longitudinal extent and wherein a second rail member is attachable to a wall and a corresponding concave / convex connecting portion which is part-circular in cross-section perpendicular to the longitudinal extent, wherein the rail elements are connected to each other at the connecting portions and at least partially rotatable relative to each other about an axis parallel to the longitudinal extent.