EP2827050B1 - Lamp - Google Patents

Description

The present invention relates to a luminaire, preferably a rectilinear and oblong luminaire, which is particularly suitable for producing a light band.

US 2009/0296381 A1 discloses a luminaire according to the preamble of claim 1.

US 5499170 discloses a luminaire with a rectilinear
Carrying body and a straight-lined light optics.

Such a luminaire usually has a rectilinear and elongated support body, on which at least one electrical load is arranged and which can be releasably secured to a support profile, which serves for wall mounting or ceiling mounting.

The term "rectilinear" is understood in the present context to mean that a rectilinear body has a longitudinal central axis that extends along a straight line. The term "elongate" is understood in the present context to mean that an elongate body has a length measured in its longitudinal direction which is greater than a width and height measured in its transverse direction. In particular, the length of the elongated body is at least twice, and preferably at least ten times, its width and height.

The attached to such a support body electrical consumers are typically at least one lighting device or lamp and an associated power electronics. In order to save energy, modern lamps often replace conventional lamps, such as light bulbs and fluorescent tubes, with energy-saving lamps. A particularly high energy saving potential is seen in connection with LEDs, with LED stands for light emitting diode. In the present context, LEDs also mean OLEDs, where OLED stands for organic LED.

In contrast to fluorescent tubes, LEDs each define a punctiform light source. If a plurality of such LEDs are arranged on a circuit board, then results in a series of punctiform light sources. This can be perceived as a loss of comfort or even disturbing, in particular compared to a conventional fluorescent tube.

The present invention is concerned with the problem of providing an improved embodiment of such a luminaire, which is characterized in particular by improved light emission. At the same time the simplest possible structure is sought, which favors an inexpensive production.

This problem is solved according to the invention by the subject matter of the independent claim. Advantageous embodiments are the subject of the dependent claims.

The invention is based on the general idea of providing the rectilinear and elongate supporting body specifically with at least one rectilinear holding region in which at least one rectilinear and oblong circuit board is mounted, which has a plurality of LEDs arranged along a rectilinear row. Furthermore, each holding region is associated with a rectilinear and oblong light optic, which represents a separate component with respect to the respective circuit board and with respect to the respective support body. The respective light optics is fixed to the support body and arranged so that it covers the respective board.

To realize a particularly inexpensive production, the light optics is an extrusion profile. For example, the light optics for this purpose is produced from a transparent or translucent plastic for the light emitted by the LEDs in the extrusion process. By producing the light optics as an extrusion profile In the cross-section of the light optics relatively complex geometries can be realized with the help of which an optical function can be integrated into the light optics. Correspondingly, the light optics used in the luminaire according to the invention has in cross section at its rear side facing the respective board a plurality of juxtaposed longitudinal protrusions projecting in the direction of the respective board, while it is rectilinear in cross section on its front side facing away from the respective board. The longitudinal prisms define Lichtleitkonturen that are generated directly on the extrusion profile in the production of the light optics, so that the longitudinal prisms are integrally formed in the light optics. By forming such longitudinal prisms, the light emission of the luminaire can be significantly influenced. Of particular advantage is the configuration presented here, in which the longitudinal prisms are formed on the back of the light optics, while the front of the light optics is formed in a straight line in cross section. On the one hand, this makes it possible to arrange the light optics on a correspondingly shaped carrier body with its front side flush with a front side of the carrier body, which considerably improves the optical appearance of the luminaire formed thereby. On the other hand, the inevitably projecting longitudinal prisms form contours, which can preferably impurities, such as dust and the like accumulate. The arrangement of the longitudinal prisms on the back of the light optics, they are located in one of the respective board facing area, which is already protected against dust to protect the boards. In particular, the respective light optics forms a cover of a depression, in which the holding region for receiving the respective circuit board is arranged. In this way, the risk of disturbing contamination of the longitudinal prisms can be significantly reduced. Furthermore, the luminaire or the support body can be made more compact by the longitudinal prisms arranged on the rear side, since the longitudinal prisms can be positioned relatively close to the relatively small LEDs. In particular, this can efficiently utilize a volume present in the aforementioned recess.

Particularly advantageous is an embodiment in which the respective board has only a single LED row, which is then preferably arranged centrally on the respective board.

According to another advantageous embodiment, the longitudinal prisms may be geometrically shaped to align the light emitted by the LEDs by means of refraction, specifically in such a way as to produce a desired emission geometry which, in operation of the luminaire on the front side of the luminaire respective light optics is emitted or emitted. Thus, a plurality of longitudinal prisms cooperate to produce a common emission geometry, whereby the light generated by the LEDs can be efficiently utilized to produce a desired emission geometry. Thus, depending on the task of the lamp a desired lighting function can be realized specifically.

Particularly advantageous is an embodiment in which the longitudinal prisms of the rear side are geometrically shaped in such a way that they effect a transverse suppression of the light emitted at the front by means of refraction. The transverse glare refers to the longitudinal direction of the lamp. In the case of a transverse glare, a glare effect of the light emitted by the light across the longitudinal direction of the light is reduced.

In another embodiment, the light optics may also be straight in longitudinal section on its front side. As a result, the front side is flat overall, which simplifies the production of the light optics.

In an alternative embodiment, the light optics in longitudinal section at its front several, juxtaposed, outwardly projecting Have transverse prisms. Such transverse prisms, like the longitudinal prisms, have a light guiding function and can influence the light emitted by the lamp. Particularly useful is a development in which the transverse prisms of the front side are geometrically shaped so that they effect by means of refraction a longitudinal glare of the light emitted at the front. The longitudinal glare also refers to the longitudinal direction of the lamp and reduces the glare of the emitted light from the lamp parallel to the longitudinal direction of the lamp.

A glare of the lamp in the transverse direction and / or in the longitudinal direction is particularly advantageous for powerful LEDs to increase the lighting comfort.

In another development, the transverse prisms can be worked out by machining the extrusion profile integrally on the extrusion profile. For example, it is possible to reshape the extrusion profile by partial hot forming on the front side so as to form the transverse prisms. Likewise, a machining or machining of the extrusion profile is conceivable in order to produce the transverse prisms.

In an alternative embodiment, the transverse prisms may be formed on a separate with respect to the extrusion profile attachment which is attached to the extrusion profile and which forms on its side facing away from the extrusion profile page, the front of the light optics. By this measure, the light optics can also be retrofitted with transverse prisms or with a longitudinal glare.

For example, the attachment can be glued to the extrusion profile. Appropriately, the facing sides of extrusion profile and Attachment be just configured, whereby a large-area contact is simplified. The attachment and the extrusion profile are either directly contacted or indirectly via the adhesive used. It is clear that the attachment as well as the optionally used adhesive for the light emitted by the LEDs is transparent or translucent.

According to the invention, the support body for the respective holding region depending on a recess, in which the respective light optics is used to close the respective recess. At the same time, the light optics then covers the respective board arranged in the recess. The recessed housing of the board and the light optics in the support body results in a particularly compact design for the lamp. At the same time, this achieves that the longitudinal prisms are accommodated in the depression, as a result of which the space created in the depression can be utilized efficiently. In particular, the longitudinal prisms are not recognizable from the outside, whereby an optically high-quality appearance can be realized.

According to the invention, a longitudinal guide is formed between the longitudinal sides of the respective light optics on the one hand and the longitudinal sides of the respective recess on the other hand with the aid of which the respective light optics is axially inserted into the support body. For example, such a longitudinal guide may be formed by a tongue and groove guide. In particular, the respective longitudinal guide can be formed by a guide contour which is integrally formed on the carrier body in the region of the respective longitudinal side of the depression and cooperates with a complementary counter-contour contour which is integrally formed on the light-optical system on the respective longitudinal side, preferably already during the extrusion process.

For example, the guide contour can be designed as a spring of a tongue and groove guide, while the mating contour then forms a complementary groove.

Thus, it can be provided, in particular, that the respective light optics is held by the respective longitudinal guide in a direction of emission of the LEDs by means of positive engagement on the carrier body. In addition, it can be provided that the respective longitudinal guide is designed as a tongue and groove guide. In particular, it can be provided according to a development that the respective longitudinal guide has a formed on the respective longitudinal side of the light optics longitudinal groove and formed on the respective longitudinal side of the recess longitudinal ridge which engages in the longitudinal groove.

In an optional embodiment, it may be provided that the respective light optics is recessed in the associated recess, preferably in such a way that the, in particular, flat front side of the light optic is flush with a, in particular flat, front side of the support body.

In another embodiment, the longitudinal prisms can be shaped to produce a symmetrical emission geometry with respect to a central axis of the light optics running perpendicular to the straight front side. In the case of a symmetrical emission geometry, a space adjoining the luminaire in the light propagation direction is illuminated symmetrically. A symmetrical emission geometry is also accompanied by a symmetrical geometry of the light optics or a symmetrical arrangement of the longitudinal prisms on the light optics.

In a further development of such a symmetrical light optics, it may be provided to produce a radiation geometry which comprises a single, continuous, has symmetrical angular range to the central axis, in which the light emission takes place. Within this angular range, a complete illumination of the space adjoining the luminaire in the light propagation direction is thus achieved. In this case, it is basically possible to design the light optics wide-beam or deep-beam or extremely deep-beam. For example, the light emission can thereby be adapted to different installation situations of the lights, which depends in a ceiling mounting of the lamp in particular from the respective room height.

Alternatively, it is also possible to design the symmetrical light optics in such a way that the emission geometry which can be generated thereby has two angular regions in which the light emission takes place, which are separated in the area of the central axis apart from any overlapping that is proximal to the light optic, are symmetrical to the central axis and each are continuous. Instead of a single angular range, two symmetrical angular ranges separated from one another are thus formed. This results in an illumination that spares a region that adjoins the luminaire in the light propagation direction in a straight line to a large extent and, on the other hand, illuminates laterally adjacent regions.

In another embodiment, the longitudinal prisms may be shaped to produce asymmetric emission geometry with respect to a central axis of the light optic that is perpendicular to the straight front. In this way, a light emission is generated, which takes place substantially only on one side of said central axis.

If only one holding area for accommodating the respective circuit board is provided on the support body, it is a single-flame luminaire. If, however, two or more such holding regions are arranged next to one another on the carrier body, in each of which at least one board can be accommodated, it is a two-lamp or multi-lamp. In the case of a two- or multi-lamp luminaire, the light optics used may in principle be identical. Likewise, different light optics can be used simultaneously on the same support body. This results in versatile possibilities for varying the respective illumination. As a result, the luminaire presented here can be adapted particularly easily to different lighting tasks.

Other important features and advantages of the invention will become apparent from the dependent claims, from the drawings and from the associated figure description with reference to the drawings.

It is understood that the features mentioned above and those yet to be explained below can be used not only in the particular combination given, but also in other combinations or in isolation, without departing from the scope of the present invention.

Preferred embodiments of the invention are illustrated in the drawings and will be described in more detail in the following description, wherein like reference numerals refer to the same or similar or functionally identical components.

Fig. 1

einen Querschnitt durch eine Leuchte mit einem Tragkörper und einem Tragprofil,

Fig. 2

ein Querschnitt wie in Figur 1, jedoch bei einer anderen Ausführungsform und ohne Tragprofil,

Fig. 3

eine Seitenansicht des Tragkörpers,

Fig. 4

eine Seitenansicht einer Lichtoptik,

Fig. 5

eine isometrische Ansicht der Lichtoptik,

Fig. 6

ein Querschnitt der Lichtoptik, jedoch bei einer anderen Ausführungsform,

Fig. 7-11

jeweils einen Querschnitt der Lichtoptik mit zugehöriger Abstrahlgeometrie, bei verschiedenen Ausführungsformen.

Show, in each case schematically,

Fig. 1

a cross section through a lamp with a support body and a support profile,

Fig. 2

a cross section as in FIG. 1 but in another embodiment and without support profile,

Fig. 3

a side view of the support body,

Fig. 4

a side view of a light optics,

Fig. 5

an isometric view of the light optics,

Fig. 6

a cross section of the light optics, but in another embodiment,

Fig. 7-11

each a cross section of the light optics with associated radiating geometry, in various embodiments.

Corresponding FIG. 1 1 comprises a rectilinear and oblong luminaire 1, a rectilinear and oblong supporting body 2, and a straight and oblong supporting profile 3. A longitudinal or longitudinal central axis of the luminaire 1, to which the adjectives "rectilinear" and "oblong" refer, runs in the cross sections of FIGS , 2 and 6-11 each perpendicular to the plane of the drawing. The support profile 3 is used to mount the lamp 1 on a wall or ceiling. The support section 3 is for example a sheet metal part. In the support section 3 here runs a current-carrying rail 4, which has a plurality of engagement regions 5, in each of which at least one electrical conductor 6 can extend. In the assembled state of the lamp 1, the current-carrying rail 4 is electrically connected, for example, to a power grid of a building.

The support body 2 carries at least one electrical load 7, here by a lighting device 8 in conjunction with an associated, in FIG. 3 recognizable power electronics 9 is formed. The lighting device 8 is in this case formed by at least one rectilinear and elongated circuit board 10, which carries a plurality of LEDs 11, which are arranged along a rectilinear row. This LED row extends parallel to the longitudinal direction of the lamp 1, ie in the Figures 1 and 2 each perpendicular to the plane of the drawing. To accommodate the respective board 10, the support body 2 has at least one rectilinear holding region 12, in which the respective circuit board 10 is arranged and is fixedly connected to the support body 2. At the in FIG. 1 shown embodiment, only one holding portion 12 is formed centrally in the support body 2, in which one or more such boards 10 are arranged. Accordingly, the in FIG. 1 shown lamp 1 to a single-lamp 1. In contrast, shows FIG. 2 a two-lamp lamp 1, but without support profile 3. In this case, the support body 2 includes two juxtaposed holding areas 12, in each of which at least one circuit board 10 is arranged.

In the in the Figures 1 and 2 In the embodiments shown, the respective circuit board 8 is fastened to the support body 2 in the respective holding region 12 by means of retaining webs 13, which are preferably integrally formed on the support body 2 and engage over the respective board 10 at lateral longitudinal edges and press against the holding region 12 and thereby the circuit board 10 fix on the support body 2. Suitably, the holding webs 13 are plastically deformed for this purpose, preferably by means of a rolling process. The support body 2 is preferably an extruded profile, which is made of a light metal, for example aluminum, or of a light metal alloy, for example of an aluminum alloy.

The support body 2 is locked to the support section 3. For this purpose, the support profile 3 has resilient latching regions 14, which cooperate with complementary thereto, formed on the support body 2 locking contours 15 and thus positively locking and / or frictionally lock. In addition, a retaining clip 16 may be provided, on the one hand is fixed to the support body 2 and the other hand is latched to the support section 3. At a rear side remote from the respective holding region 12, the support body 2 carries at least one connection element 17 which has engagement elements 18 which engage in the engagement regions 5 of the current-carrying rail 4. As a result, the required for the particular application electrical conductor 6 of the current-carrying rail 4 can be selectively contacted electrically. The respective connection element 17 is connected, for example, to the aforementioned power electronics 9, which in turn is connected to the respective lighting device 8.

The luminaire 1 also has, for each holding region 2, at least one rectilinear and oblong optical system 19, which represents a separate component both with respect to the circuit board 10 and with respect to the carrier body 2. The light optics 19 is held in a suitable manner on the support body 2 and arranged thereon so that it covers the respective circuit board 10. In the example, the support body 2 for the respective holding portion 12 has a recess 20 in which the respective holding portion 12 is recessed with respect to a side facing away from the support section 3 front 21 of the support body 2. The light optics 19 is mounted on the support body 2, that closes the respective recess 20. For this purpose, the light optics 19 is expediently inserted into the respective recess 20. This can preferably be realized by means of longitudinal guides 22, which allow an axial insertion of the light optics 19 into the respective recess 20. The longitudinal guides 22 are each formed between two mutually applied longitudinal sides 23 of the light optics 19 on the one hand and two mutually facing longitudinal sides 24 of the recess 20. In the embodiments shown here, the respective longitudinal guide 22 is configured in the manner of a tongue-and-groove guide, wherein a guide contour 25 formed on the respective longitudinal side 24 of the recess 20 cooperates or engages in the form of a spring with a counter-contour 26 complementary thereto. at the respective longitudinal side 23 of the light optics 19 is formed. The respective guide contour 25 is integrally formed on the extruded profile of the support body 2. The positioning of the respective light optics 19 on or in the respective recess 20 is preferably carried out so that the light optics 19 is substantially flush with the front side 21 of the support body 2.

The light optics 19 is designed as an extrusion profile. In particular, the aforementioned counter-contour contours 26 can be formed integrally on the extrusion profile of the light-optical system 19.

The respective light optics 19 is thus by the respective longitudinal guide 22 in a in the Fig. 1 and 2 by an arrow indicated emission direction 44 of the LEDs 11 and the entire lamp 1 by means of positive engagement on the support body 2 held.

As mentioned, the respective longitudinal guide 22 is preferably designed as a tongue and groove guide. For this purpose, the respective longitudinal guide 22 has a longitudinal groove 26 formed on the respective longitudinal side 23 of the light optics 19 and a longitudinal web 25 formed on the respective longitudinal side 24 of the depression 20, which engages in the longitudinal groove 26.

Further, it is preferred that the respective light optics 19 is recessed in the associated recess 20, such that the front side 30 of the light optics 19 is flush with a flat front side 21 of the support body 2.

The connection element 17 can be connected in an electrically conductive manner to the support body 2 with the aid of a grounding clip 27.

According to FIG. 3 the power electronics 9 can be fixed by means of a bracket clip 28 on the support body 2.

According to the FIGS. 4 to 11 the light optics 19 has a rear side 29 facing the respective circuit board 10 and a front side 30 facing away from the respective circuit board 10. In the cross sections of FIG FIGS. 6 to 11 has the light optics 19 at its rear side 29 a plurality of juxtaposed, projecting longitudinal prisms 31. By contrast, the light optics 19 at its front 30 in cross section is rectilinear. The light optics 19, for example, in the embodiments of the FIGS. 7 to 11 also in a longitudinal section, not shown here, perpendicular to the drawing planes of the FIGS. 7 to 11 is to be rectilinear at its front 30. As a result, the front side 30 of the light optical system 19 is straight both in cross section and in the longitudinal section, as a result of which the front side 30 defines or is plane. Such a level is purely exemplary in FIG. 7 indicated and designated 32.

In contrast, the show FIGS. 4 to 5 an embodiment of the light optics 19, wherein the light optics 19 in the longitudinal section of FIG. 4 has at its front 30 a plurality of juxtaposed, projecting transverse prisms 33. While the longitudinal prisms 31 of the back 29 extend parallel to the longitudinal direction of the light optics 19, the transverse prisms 33 of the front 30 extend transversely to the longitudinal direction of the light optics 19. In principle, the in the FIGS. 7 to 11 embodiments shown to be equipped with such transverse prisms 33.

The transverse prisms 33 are expediently geometrically shaped in such a way that they effect a longitudinal glare of the light emitted on the front side 30 during operation of the luminaire 1 by refraction, ie by refraction of light. The transverse prisms 33 can be as in FIG. 5 shown to be integrally formed on the extrusion profile of the light optics 19, by machining the extrusion profile. It is conceivable, for example, a hot forming of the front side 30, the transverse prisms 33rd impress or produce by forming. Furthermore, it is conceivable to machine the extrusion profile on the front side 30 in order to produce the transverse prisms 33.

In contrast, the show FIGS. 4 and 6 an embodiment in which a separate attachment 35 is attached to the extrusion profile 34 in a suitable manner, on which the transverse prisms 33 are formed. The attachment 35 may be attached to the extrusion profile 34 in a suitable manner. A side facing away from the extrusion profile 34 side of the attachment 35 then forms the front 30 of the light optics 19. Expediently, the attachment 35 is adhered to the extrusion profile 34. Attachment 35 and extrusion profile 34 can along a plane 36, the in FIG. 6 is indicated, abut each other.

According to the FIGS. 7 to 11 the longitudinal prisms 31 are geometrically shaped so that they align the light emitted by the LEDs 11 of the respective circuit board 10 during operation of the luminaire 1 by means of refraction. In this case, this alignment takes place in such a way that an emission geometry 37 for the light emitted at the front 30 of the light optics 19 results. Furthermore, the longitudinal prisms 31 are expediently shaped in such a way that, by refraction, they effect a transverse suppression of the light emitted at the front side 30.

In the embodiments of the FIGS. 7 to 10 the longitudinal prisms 31 are geometrically shaped such that the emission geometry 37 generated thereby is symmetrical with respect to a central axis 38 in cross-section. The central axis 38 in this case runs perpendicular to the straight front 30 of the light optics 19. In the embodiments of the FIGS. 7 . 8th and 10 the longitudinal prisms 31 are geometrically shaped such that the emission geometry 37 generated thereby has a single, continuous angle region 39 in which the light emission takes place. FIG. 7 shows an embodiment in which the longitudinal prisms 31 a small Angle range 39 for generating a low-beam Abstrahlgeometrie 37 form. In contrast, the longitudinal prisms 31 at the in FIG. 8 shown embodiment so that they define a large angular range 39, which leads to a wide-angle Abstrahlgeometrie 37. In FIG. 10 On the other hand, a configuration is reproduced in which the geometry of the longitudinal prisms 31 leads to a very small angular range 39, which generates an extremely low-emission emission geometry 37.

At the in FIG. 9 In the embodiment shown, the geometric shape of the longitudinal prisms 31, on the other hand, is such that the emission geometry 37 created in this case has two angular regions 40 in which the light emission takes place. The two angular regions 40 are each continuous. They are also arranged symmetrically to the central axis 38. However, the two separate angular regions 40 are separated from each other in the region of the central axis 38. This can in principle be continuous, ie along the entire center axis 38. However, as in FIG. 9 form an overlap 41 of the two angular regions 40 near the light optics 19, so that the two angular regions 40 propagate separately only after this overlap 41, ie, distally to the light optics 19.

The longitudinal prisms 31, which in the embodiments of the FIGS. 7 to 10 each generate a symmetrical Abstrahlgeometrie 37 are symmetrically arranged at the respective light optics 19 itself also with respect to the central axis 38. Accordingly, the entire light optics 19 in these embodiments with respect to the central axis 38 is mirror-symmetrical.

In contrast, shows FIG. 11 an embodiment in which the longitudinal ribs 31 are arranged and formed asymmetrically with respect to the central axis 38. Also, the light optics 19 in this embodiment is no longer mirror-symmetrical to the central axis 38. Such an embodiment also leads to the generation of an asymmetric emission geometry 42, wherein the asymmetry relates again to the central axis 38. The asymmetrical emission geometry 42 can analogously to the embodiments of the FIGS. 7 . 8th and 10 a single, continuous angle range 43 include.

At the in FIG. 1 the embodiment shown is purely exemplary of the asymmetrical light optics 19 FIG. 11 intended. At the in FIG. 2 shown embodiment is in both wells 20 each of the asymmetrical light optics 19 from FIG. 11 provided, wherein the two asymmetric light optics 19 are also installed asymmetrically, whereby the two-lamp lamp 1 of FIG. 2 overall produces an asymmetrical light emission.

Although at the in FIG. 2 embodiment shown, two identical light optics 19 are used, is quite possible to use two different light optics 19 in a two-lamp lamp 1.

Claims (13)

1. Light

   - having a rectilinear and elongate support body (2) which comprises at least one rectilinear retaining region (12), in which at least one rectilinear and elongate plate (10) is attached, comprising a plurality of LEDs (11) arranged in a straight line,

   - wherein each retaining region (12) is assigned a rectilinear and elongate light optic (19), which represents a separate component with respect to the plate (10) and the support body (2), is held on the support body (2) and covers the respective plate (10),

   - wherein each light optic (19) is an extrusion profile,

   - wherein, in cross-section, each light optic (19) comprises a plurality of protruding longitudinal prisms (31), arranged next to one another on the rear side (29) thereof
   facing the respective plate (10),

   characterised in that,

   - the support body (2) is an extruded profile made from light metal or light metal alloy,

   - each light optic (19) is rectilinear in cross-section on the front side (30) thereof facing away from the respective plate (10),

   - the support body (2) has a recess (20) for the each retaining region (12), in which the respective light optic (19) is inserted to close the respective recess (20),

   - a longitudinal guide (22) is formed between the longitudinal sides (23) facing away from each other of each light optic (19), and the longitudinal sides (24) facing towards each other of the respective recess (20), by means of which each light optic (19) is axially inserted in the support body (2).
2. Light according to claim 1
   characterised in that,
   the longitudinal prisms (31) are geometrically shaped so as to align the light emitted from the LEDs (11) by means of refraction, in order to create an emitted radiation geometry (37, 42) on the front side (30) of the respective light optic (19).
3. Light according to claim 1 or 2,
   characterised in that,
   in longitudinal section, the light optic (19) is rectilinear on the front side (30) thereof.
4. Light according to claim 1 or 2,
   characterised in that,
   in longitudinal section, the light optic (19) comprises, on the front side (30) thereof, a plurality of protruding transverse prisms (33) arranged next to each other.
5. Light according to claim 4,
   characterised in that,
   the transverse prisms (33) are produced integrally on the extrusion profile (34) by processing of the extrusion profile (34).
6. Light according to claim 4,
   characterised in that,
   the transverse prisms (33) are formed on a separate attachment (35) with respect to the extrusion profile (34), which is attached on the extrusion profile (34) and forms the front side (30) of the light optic (19) on the side thereof facing away from the extrusion profile (34).
7. Light according to any of the preceding claims,
   characterised in that,
   each light optic (19) is held on the support body (2) by means of a form fit, by the respective longitudinal guide (22) in a radiation direction (44) of the LEDs (11).
8. Light according to any of the preceding claims,
   characterised in that,
   each longitudinal guide (22) is designed as a tongue and groove guide.
9. Light according to any of the preceding claims,
   characterised in that,
   each longitudinal guide (22) comprises a longitudinal groove (26) formed on the respective longitudinal side (23) of the light optic (19), and a longitudinal strip (25) formed on the respective longitudinal side (24) of the recess (20), which engages in the longitudinal groove (26).
10. Light according to any of the preceding claims,
    characterised in that,
    each light optic (19) is arranged recessed in the corresponding recess (20), such that the front side (30) of the light optic (19) closes flush with a flat front side (21) of the support body (2).
11. Light according to one of claims 1 to 10,
    characterised in that,
    the light prisms (31) are shaped to create a radiation geometry (37) that is symmetric with respect to a central axis (38) of the light optic (19) running perpendicular to the straight front side (30).
12. Light according to claim 11,
    characterised in that,
    the radiation geometry (37) comprises two angle regions (40) in which the light emission occurs, which are separated in the region of the central axis (38), apart from any overlap (41) existing proximal to the light optic (19), are symmetric to the central axis (38) and are each individually continuous.
13. Light according to one of claims 1 to 10,
    characterised in that,
    the light prisms (31) are shaped in order to create a radiation geometry (42) that is asymmetric with respect to a central axis (38) of the light optic (19) running perpendicular to the straight front side (30).

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