Lighting device for a vehicle

Abstract

The present invention relates to a one-piece lighting device (1) for a vehicle, comprising a light guide (5) configured to guide light. The lighting device (1) further comprises a support element (10) for supporting the light guide (5). It is further provided that the light guide (5) and the support element (10) are jointly formed. The invention further relates to a vehicle having at least one such lighting device (1).

Description

The invention relates to a one-piece lighting device for a vehicle according to the preamble of claim 1.Headlights and light strips are used in particular in automobile construction in order to implement lighting tasks. In this case, the headlights and light strips are assembled with great effort from a multiplicity of different individual components and, for example, screwed, clipped or pressed together. As a result, their assembly is complex and time-consuming, so that corresponding products are often relatively expensive. In addition, the large number of different individual components entails further disadvantages. Thus, separating joints are produced between adjacent individual components of a headlight or of a light strip, which can interfere with the visual appearance of headlights and light strips. Furthermore, where two adjacent individual components touch one another, rubbing and scrubbing points may result, which cause disturbing noises and abrasion during the intended operation of the headlights and light-emitting tapes. Not least, there is a further disadvantage in that the large number of different individual components entail challenging tolerance problems, since manufacturing tolerances of the individual components add up.Lighting devices of the type mentioned at the beginning are known from the documents JP 2016-4 667 A, DE 10 2016 205 684 A1 and DE 20 2014 104 585 U1. A further illumination device is described in the document DE 10 2020 130 511 A1. It has a large number of different individual components, in particular a light-emitting assembly, which is fastened via integrated snap connections, independent fastening means, adhesive or a weld to an assembly housing configured to carry the light-emitting assembly. The known lighting device therefore cannot overcome the above-described disadvantages.Further illumination devices are known from the documents EP 3 412 505 A1, DE 10 2020 128 846 A1, DE 10 2020 134 642 A1 and DE 10 2021 125 674 A1.The object of the invention is therefore to specify an improved or at least one other embodiment of a lighting device for a vehicle. In particular, a vehicle having such a lighting device is intended to be provided.In the present invention, this object is achieved in particular by the subject matter of the independent claims. Advantageous embodiments are the subject matter of the dependent claims and the description.The invention has firstly recognized that a lighting device which is advantageous with respect to the described disadvantages and can be configured relatively freely in its shape in particular can be provided by the components of the lighting device being injected directly onto one another. The components of the lighting device are thereby firmly and gap-free connected to one another.According to the invention, a one-piece lighting device for a vehicle, in particular a headlight or a light strip, is provided, which has a light guide configured to guide light and a carrier element for carrying the light guide. Furthermore, it is provided that the light guide and the carrier element are molded together. Expediently, it can be provided that the light guide is designed as a light spot or as a transparent geometry, in particular as a light star or as a light spot.According to the invention, it is further provided that the light guide is designed as a flat light guide which extends in an arc shape along a main direction of extent and is configured to be transparent and which has a narrow-area light coupling-in surface for coupling in light, a narrow-area light coupling-out surface for coupling out light in a main radiation direction and large light coupling-out surfaces which are opposite one another and at which coupled-in light can be coupled out in a transverse direction which extends transversely or substantially transversely with respect to the main radiation direction. Furthermore, it is provided that the carrier element is designed as a carrier element for carrying the flat light guide, which extends in an arc shape along the main direction of extension, in particular following the contour of the flat light guide, and is designed to be opaque.According to the invention, it is furthermore the case that the carrier element has integral mounting lugs for mounting the lighting device on a rear side of the carrier element which is opposite the narrow-surface light decoupling surface. As a result, the lighting device can be mounted, for example, on a lamp housing of a headlight. The expression "integral" means here that the mounting lugs are formed on the carrier element when the flat light conductor and the carrier element are molded together. In other words, the carrier element has original-shaped mounting lugs. By means of the mounting brackets, a function that has since been realized by an additional component can now be depicted by the carrier element. As a result, the number of components of the lighting device is reduced and the same can therefore be provided even more cost-effectively.The expression "jointly primary-molded" means in particular that the flat light conductor and the carrier element are formed and manufactured in one piece, for example by injection molding. The flat light conductor and the carrier element can, for example, advantageously be directly jointly injected in a two-component injection molding process or a multi-component injection molding process. As a result, the proposed lighting device can be provided not only in a less complex and more cost-effective manner, but also significantly smaller in construction, so that a space to be reserved in a vehicle headlight, for example, is reduced. This is due in particular to the fact that no screws, clips or the like have to be provided for the assembly of the lighting device. Furthermore, the proposed lighting device does not involve tolerance problems, since cumulative individual tolerances are avoided, nor does disruptive joints and friction points occur between individual components. As a result, an advantageous, high-quality lighting device is thus specified, with the aid of which the user's experience of comfort can be enhanced.It is clear to the person skilled in the art that in the present case two or more components joined in a form-fitting, force-fitting and / or firmly bonded manner form a "one-piece" component. That is to say, in particular, that components screwed, clamped, bonded or welded to one another form a "one-piece" component. To be distinguished from this are primary-shaped components, i.e. monolithic component or "components from a casting", which are referred to in the present case as "one-piece".The term "transparent" in the sense of this invention is expediently that property of the flat light guide for transmitting light in a wave spectrum (so-called light spectrum) visible by the human eye, completely or at least partially (i.e. translutcent).Expediently, it can be provided that the light coupling-in surface and the light decoupling surface of the flat light guide extend horizontally in the main direction of extension of the flat light guide and / or during intended operation of the lighting device.Expediently, it can be provided that the flat light guide is configured planar. That is to say that the flat light conductor runs in an arc shape along the main direction of extent and lies in one plane. Alternatively, it can be provided that the flat light conductor is designed in the shape of a cone surface. In this case, the flat light guide extends in an arc shape along the main direction of extent and is at the same time configured in a three-dimensional conical surface shape. This specifies a preferred shape for the flat light guide. In principle, it is conceivable for the flat light guide to have a contour-following extension, i.e. to follow a contour of a headlight, for example.It can furthermore expediently be provided that the flat light conductor is produced from polycarbonate (PC) or polymethyl methacrylate (PMMA). Furthermore, it can be provided that the carrier element is made of polycarbonate-acrylonitrile-butadiene-styrene (PC-ABS) or polymethyl methacrylate (PMMA), in particular black or chromatic colored. As a result, the flat light conductor and / or the carrier element have excellent injection molding suitability and can additionally be provided relatively cost-effectively and in a lightweight manner.The invention has furthermore recognized that within the scope of the common molding of the flat light guide and the carrier element, for example by injection molding, in particular by a two-component injection molding method or a multi-component injection molding method, functional elements for realizing different functions on the flat light guide and / or on the carrier element can advantageously be realized integrally. As a result, the flat light guide and / or the carrier element is supplemented in the sense of functional integration, wherein the functional elements can be depicted particularly favorably in each case because of the common molding with the flat light guide and / or the carrier element.It can be provided that the mounting brackets of the carrier element are configured such that the lighting device can be firmly screwed, latched or clipped to, for example, a luminaire housing of a headlight by means of the mounting brackets.Furthermore, it can expediently be provided that the carrier element has integral spacers on a rear side of the carrier element opposite the light decoupling surface of the narrow surface. The spacers are expediently configured in such a way that a predefined distance can be set by means of them between the lighting device and, for example, a lamp housing of a headlight. The term "integral" again means that the spacers are formed on the carrier element when the flat light conductor and the carrier element are molded together. In other words, the carrier element has primary-shaped spacers. Due to the integral arrangement of the spacers, a function that has since been realized by an additional component can now also be depicted by the carrier element. As a result, the number of components of the lighting device is further reduced, so that the lighting device can be provided even more cost-effectively.Expediently, it can be provided that the carrier element has an integral positioning arrangement on a rear side of the carrier element opposite the light decoupling surface of the narrow surface, by means of which positioning arrangement the lighting device can be positioned in a predetermined position. The positioning arrangement can be realized, for example, by pin receptacles or alternatively by positioning pins. The pin receptacles are designed, for example, such that positioning pins formed on the lamp housing of a headlight latch into the pin receptacles as soon as the lighting device is positioned in the predetermined position. As a result, firstly the lighting device is locked in the predefined position and secondly a haptic feedback, which can be detected by sensors, is given that the lighting device has arrived in the predefined position. This simplifies the assembly of the lighting device. The term "integral" again means that the positioning arrangement is formed on the carrier element when the flat light guide and the carrier element are molded together. In other words, the carrier element has a primary-shaped positioning arrangement. Due to the integral arrangement of the positioning arrangement, a function that has since been realized by an additional component can now also be depicted by the carrier element. As a result, the number of components of the illumination device is further reduced, so that the illumination device can be provided even more cost-effectively than since.It can be provided that the pin receptacles of the positioning arrangement are formed as through-openings on the above-described mounting brackets for mounting the lighting device. Alternatively, it can be provided that the positioning arrangement is provided as positioning pins on the mounting brackets.It can furthermore expediently be provided that the flat light guide has two end regions lying opposite one another in the main direction of extent, wherein the carrier element has integral termination caps which are arranged, in particular, on a rear side of the carrier element lying opposite the narrow-surface light decoupling surface and which in each case cover an end region of the flat light guide at least in sections. The end caps thus close off the flat light guide in the direction of the main direction of extension, so that the end regions of the flat light guide are protected on the one hand and the flat light guide can be supported via the end caps on a lamp housing of a headlight, for example. The term "integral" means that the end caps are formed on the carrier element when the flat light guide and the carrier element are molded together. In other words, the carrier element has primary-shaped end caps. Due to the integral arrangement of the end caps, the lighting device is made smaller, in particular in the direction of the main direction of extension.Expediently, it can be provided that the carrier element has integral design elements for the optical design of the illumination device. It is expedient here if a design element is realized as a light diaphragm which is arranged on a large light decoupling surface of the flat light conductor, extends at least in sections over this large light decoupling surface and covers this large light decoupling surface at least in sections. Expediently, the light diaphragm extends in the main emission direction and in the main extension direction at least partially over the large light decoupling surface. As a result, no light can be decoupled in the covered region of the large light decoupling surface predefined by the light aperture. This has the advantage that, depending on the design of the light diaphragm, an optically appealing effect can be achieved for a user of the lighting device. The term "integral" means that the design elements and in particular the light diaphragm are formed on the carrier element when the flat light guide and the carrier element are molded together. In other words, the carrier element has original-shaped design elements. Due to the integral arrangement of the design elements and in particular of the light diaphragm, the lighting device is overall of a more compact construction.Furthermore, it can expediently be provided that the carrier element delimits a channel-shaped receptacle running in the main direction of extent and that the lighting device has a U-shaped insertion reflector running in the main direction of extent for reflecting light and a main light guide fed with light by at least one light source. In this case, the insertion reflector is arranged in the receptacle and the main light guide is arranged in or on the insertion reflector. Furthermore, it is provided that the narrow-area light coupling surface is arranged opposite the main light guide in or on the receptacle, so that light provided by the at least one light source and coupled into the main light guide couples into the flat light guide via the narrow-area light coupling surface of the flat light guide and couples out of the flat light guide via the narrow-area light decoupling surface and the large light decoupling surfaces along a light path extending from the narrow-area light coupling surface to the narrow-area light decoupling surface and to the large light decoupling surfaces. Said at least one light source is expediently configured to emit light in a wave spectrum (so-called light spectrum) visible to the human eye. Furthermore, the light emitted by the at least one light source during operation of the lighting device can propagate along an optical axis originating from the light decoupling surface and the large light decoupling surfaces from the at least one light source through a cover plate of the lighting device, so that a section of a surrounding area of the lighting device situated in front of the lighting device can be illuminated.It can furthermore expediently be provided that the carrier element has at least one integral reflector arranged along the light path for reflecting light. The at least one integral reflector of the carrier element can be realized in particular by an optical prism. The term "integral" means that the at least one reflector of the carrier element is formed on the carrier element when the flat light conductor and the carrier element are molded together. In other words, the carrier element has at least one primary-shaped reflector. Light can be guided through it in a targeted manner. Furthermore, the lighting device is relatively compact due to the integral design of the at least one reflector.According to a further basic idea of the invention, an advantageous vehicle, in particular an electrically driven vehicle, is provided, which has at least one lighting device which has at least one feature of the lighting device described above.To summarize, the present invention expediently relates to a one-piece lighting device for a vehicle having a transparent flat light guide which is configured for guiding light and runs in an arc shape along a main direction of extent and has a narrow-area light coupling-in surface for coupling in light, a narrow-area light coupling-out surface for coupling out light in a main radiation direction and large light coupling-out surfaces which are opposite one another and at which coupled-in light can be coupled out in a transverse direction running transversely to the main radiation direction. The lighting device further comprises a carrier element, which extends in an arc shape along the main direction of extension and is opaque to light, for carrying the flat light guide. It is furthermore provided that the flat light conductor and the carrier element are molded together. The invention further relates to a vehicle having at least one such lighting device.Further important features and advantages of the invention are evident from the dependent claims, from the drawings and from the associated description of the figures with reference to the drawings.It is understood that the features mentioned above and those still to be explained below can be used not only in the respectively specified combination, but also in other combinations or alone, without departing from the scope of the present invention.Preferred exemplary embodiments of the invention are illustrated in the drawings and are explained in more detail in the following description, wherein the same reference numerals refer to the same or similar or functionally the same components.In each case, diagrammatically show: FIG. 1 shows a perspective view of a preferred embodiment of a lighting device according to the invention for a vehicle, FIG. 2 shows the lighting device from FIG. 1 in an installation situation, FIG. 3 shows an enlarged detail from FIG. 2, FIG. 4 shows a perspective sectional view of the lighting device from FIG. 2, FIG. 5 shows a perspective view of a further preferred embodiment of a lighting device according to the invention for a vehicle, FIG. 6 is an enlarged view of a portion of the lighting device of FIG. 5 , FIG. 7 shows a further enlarged illustration of a section of the lighting device from FIG. 5, FIG. 8 shows a further enlarged illustration of a section of the lighting device from FIG. 5, FIG. 9 shows a further enlarged illustration of a section of the lighting device from FIG. 5 and last FIG. 10 shows a perspective sectional view of the lighting device from FIG. 5 in an installation situation.FIGS. 1 to 10 show two preferred embodiments of a one-piece lighting device for a vehicle, which is identified overall by the reference numeral 1. In the following description, for the sake of simplicity, functionally identical or functionally similar components of the embodiments are provided with the same reference numerals. A new description of functionally identical or functionally similar components is not made in order to avoid repetitions. Instead, focus is placed on features distinguishing the embodiments.FIGS. 1 to 4 show a preferred embodiment of the one-piece lighting device 1 for a vehicle according to the invention. In the perspective view of the lighting device 1 illustrated in FIG. 1, it can be seen that the lighting device 1 has a transparent flat light guide 5 for guiding light on the one hand and a light-opaque carrier element 10 which is configured for carrying the flat light guide 5 on the other hand. In order that a lighting device 1 of particularly compact and inexpensive construction can be provided, in the present case the flat light guide 5 and the carrier element 10 are jointly primary-molded, for example, by injection molding, in particular by a two-component injection molding method or a multi-component injection molding method.In this case, the flat light conductor 5 can be produced from polycarbonate (PC) or polymethyl methacrylate (PMMA) and the carrier element 10 can be produced from polycarbonate-acrylonitrile-butadiene-styrene (PC-ABS) or polymethyl methacrylate (PMMA) which is coloured black or chromatic. Alternatively, the flat light conductor 5 and the carrier element 10 can be made of the same material, for example polycarbonate (PC), polymethyl methacrylate (PMMA) or polycarbonate-acrylonitrile-butadiene-styrene (PC-ABS). As a result, the flat light conductor 5 and the carrier element 10 have excellent injection molding suitability and can additionally be provided relatively cost-effectively and in a lightweight manner.It can also be seen in FIG. 1 that the transparent flat light conductor 5 extends along a main direction of extension 2 indicated by an arrow, wherein it has an arcuate course, so that it has a concave side 28, an opposite convex side 29 and end regions 17, 18 opposite one another in the main direction of extension 2. Furthermore, the flat light guide 5 has a narrow-area light coupling-in surface 6 for coupling in light, a narrow-area light coupling-out surface 7 for coupling out light in a main emission direction 3, which is indicated by an arrow, and large light coupling-out surfaces 8, 9 opposite one another, at which coupled-in light can be coupled out in a transverse direction 4 running transversely or substantially transversely to the main emission direction 3 and optionally transversely to the main extension direction 2 and indicated by a further arrow. It can also be seen in FIG. 1 that the flat light guide 5 is not planar, i.e. does not run in a plane, but is bent three-dimensionally, so that it has a conical-surface shape, for example in the manner of a projecting visor of a hat. As a result, the flat light guide 5 is configured such that light, which is provided, for example, by a light source not illustrated, couples into the flat light guide 5 via the narrow-area light coupling surface 6 of the flat light guide 5 and couples out from the flat light guide 5 to the environment along a light path 26 extending from the narrow-area light coupling surface 6 as far as the narrow-area light decoupling surface 7 and to the large light decoupling surfaces 8, 9, which light path is illustrated by a dashed line in FIG. 4, via the narrow-area light decoupling surface 7 and the large light decoupling surfaces 8, 9 to the environment.The carrier element 10 likewise extends in an arc shape along the main direction of extension 2 and follows, for example, the contour of the flat light conductor 5. Furthermore, the carrier element 10 is arranged in particular via its second terrace-like arc section 32 on the concave side 28 of the flat light conductor 5. It can be seen in FIG. 1 that the carrier element 10 extends along the concave side 28 of the flat light conductor 5 over an entire main extension length of the flat light conductor 5 in the main extension direction 2.In particular, the perspective sectional view according to FIG. 4 shows that the carrier element 10 forms or has a channel-shaped receptacle 23 running in the main direction of extent 2, and furthermore the lighting device 1 has a U-shaped insertion reflector 24 running in the main direction of extent 2 for reflecting light and a main light guide 25 fed with light by at least one light source. In this case, the insertion reflector 24 is arranged in or on the receptacle 23, and furthermore the main light guide 25 is arranged in or on the insertion reflector 24. Furthermore, the narrow-area light coupling surface 6 of the flat light guide 5 is arranged opposite the main light guide 25 in or on the receptacle 23, as a result of which light provided by the at least one light source and coupled into the main light guide 25 is coupled into the flat light guide 5 via the narrow-area light coupling surface 6 of the flat light guide 5 and is coupled out of the flat light guide 5 via the narrow-area light coupling surface 7 and the large light coupling surfaces 8, 9 along the light path 26 extending from the narrow-area light coupling surface 6 as far as the narrow-area light coupling-out surface 7 and to the large light coupling-out surfaces 8, 9.FIG. 2 illustrates a conceivable installation situation of the lighting device 1 in a vehicle headlight 30. Purely by way of example, it is provided that the lighting device 1 is arranged on a luminaire housing 33 of the vehicle headlight 30. Furthermore, the narrow-area light coupling-in surface 6 and the narrow-area light decoupling surface 7 of the flat light guide 5 are aligned substantially horizontally.The invention has furthermore recognized that within the scope of the common molding of the flat light guide 5 and the carrier element 10, for example by injection molding, in particular by a two-component injection molding method or a multi-component injection molding method, functional elements for realizing different functions on the flat light guide 5 and / or on the carrier element 10 can advantageously be realized integrally. As a result, the flat light conductor and / or the carrier element is supplemented in the sense of functional integration, wherein the functional elements can be provided particularly cost-effectively because of the common molding with the flat light conductor 5 and / or the carrier element 10.Accordingly, it is to be initially stated with reference to FIGS. 1 to 3 that the carrier element 10 has a plurality of integral mounting brackets 12 on a rear side 11 of the carrier element 10 opposite the narrow-surface light decoupling surface 7 and the concave side 28 for mounting the lighting device 1 on, for example, the luminaire housing 33 of the vehicle headlight 30. In the present case, the mounting tabs 12 are molded jointly with the flat light conductor 5 and the carrier element 10, for example, by injection molding, in particular by a two-component injection molding method or a multi-component injection molding method. The mounting brackets 12 are arranged, purely by way of example, on the first terrace-like curved section 31 of the carrier element 10 and project away from the carrier element 10 in a direction opposite to the main radiation direction 3. It can be provided that a screw connection, a latching or a clipping of the lighting device 1 to the luminaire housing 33 of the vehicle headlight 30 can be realized on the basis of the mounting brackets 12.In FIG. 3, it is illustrated that the carrier element 10 has integral spacers 13 on the said rear side 11 of the carrier element 10, by means of which spacers a predefined distance can be set between the lighting device 1 and, for example, the luminaire housing 33 of the vehicle headlight 30. The spacers 13, like the mounting lugs 12, are in the present case jointly molded together with the flat light conductor 5 and the carrier element 10, for example by injection molding, in particular by a two-component injection molding method or a multi-component injection molding method.It can also be seen in FIGS. 1 to 3 that the carrier element 10 has an integral positioning arrangement 14 of pin receptacles 15 arranged on the mounting brackets 12. The pin receivers 15 are designed as a through-opening in the present case, so that pin-like positioning pins 16 formed on the lamp housing 33 of the vehicle headlight 30 latch into the pin receivers 15 as soon as the lighting device 1 is correctly positioned in a predetermined position. As a result, firstly the lighting device 1 is locked in the predefined position and secondly a haptic feedback, which can be detected by sensors, is given that the lighting device 1 has arrived in the predefined position.As can be seen in FIG. 1, the carrier element 10 is furthermore equipped with integral end caps 19, 20 which each cover an end region 17, 18 of the flat light conductor 5 at least in sections. The end caps 19, 20 thus terminate the flat light conductor 5 in the direction of the main direction of extent 2 toward the sides. As a result, the end portions 17, 18 of the flat light guide 5 are protected and can be further relatively easily fastened to the lamp housing 33 of the vehicle headlight 30.FIGS. 1 to 4 also show a plurality of integral design elements 21 of the carrier element 10 for the optical design of the lighting device 1. A first design element 21 is designed as a light diaphragm 22. It is arranged on the large light decoupling surface 8 of the flat light guide 5 and extends in sections over this large light decoupling surface 8, as a result of which the flat light guide 5 is covered in regions, so that no light can couple out to the environment there. This has the advantage that, depending on the configuration of the light diaphragm 22, an optically appealing effect can be achieved for a user of the lighting device 1.FIGS. 5 to 10 show a further preferred embodiment of the one-piece lighting device 1 for a vehicle according to the invention. In the perspective view of the lighting device 1 illustrated in FIG. 5, it can be seen that, in contrast to the preceding embodiment, the flat light guide 5 is planar or at least substantially planar and the carrier element 10 has only a single terrace-like arc section 31. Furthermore, in contrast to the above embodiment, it is provided that the integral spacers 13 are formed on the carrier element 10 and / or on the flat light conductor 5. Furthermore, it is provided purely by way of example that the carrier element 10 has at least one integral reflector 27 arranged along the light path 26 for reflecting light.

Claims

One-piece lighting device (1) for a vehicle, in particular a headlight or a light strip, having - a light guide (5) configured to guide light and a carrier element (10) configured to carry the light guide (5), - wherein the light guide (5) and the carrier element (10) are jointly urformed, - wherein the light guide (5) is formed as a transparent flat light guide (5) which runs in an arc shape along a main direction of extent (2) and has a narrow-area light coupling-in surface (6) for coupling in light, a narrow-area light coupling-out surface (7) for coupling out light in a main radiation direction (3) and mutually opposite large light coupling-out surfaces (8, 9), at which coupled-in light can be coupled out in a transverse direction (4) running transversely to the main radiation direction (3), - wherein the carrier element (10) is formed as a carrier element (10), which extends in an arc shape along the main direction of extension (2) and is opaque, for carrying the flat light conductor (5), characterized in that - the carrier element (10) has integral mounting lugs (12) for mounting the lighting device (1) on a rear side (11) of the carrier element (10), which rear side is opposite the narrow-surface light decoupling surface (7).Lighting device (1) according to Claim 1, characterized in that - the flat light guide (5) is of planar configuration, or - the flat light guide (5) is of conical surface configuration.Lighting device (1) according to Claim 1 or 2, characterized in that - the flat light conductor (5) is produced from polycarbonate (PC) or polymethyl methacrylate (PMMA), and / or - the carrier element (10) is produced from, in particular black- or chromatic-coloured, polycarbonate-acrylonitrile-butadiene-styrene (PC-ABS) or polymethyl methacrylate (PMMA).Lighting device (1) according to one of the preceding claims, characterized in that - the carrier element (10) has integral spacers (13) on a rear side (11) of the carrier element (10), which rear side is opposite the narrow-surface light decoupling surface (7), and / or the flat light guide (5).Lighting device (1) according to one of the preceding claims, characterized in that - the carrier element (10) has an integral positioning arrangement (14) on a rear side (11) of the carrier element (10) which is opposite the narrow-surface light decoupling surface (7), by means of which positioning arrangement the lighting device (1) in a predefined position.Lighting device (1) according to one of the preceding claims, characterized in that - the flat light conductor (5) has two end regions (17, 18) lying opposite one another in the main direction of extent (2), - wherein the carrier element (10) has integral end caps (19, 20) which in each case cover an end region (17, 18) of the flat light conductor (5) at least in sections.Lighting device (1) according to one of the preceding claims, characterized in that - the carrier element (10) has integral design elements (21) for the optical design of the lighting device (1).Lighting device (1) according to Claim 7, characterized in that - a design element (21) is realized as a light diaphragm (22) which is arranged on a large light decoupling surface (8, 9) of the flat light guide (5), extends at least in sections over this large light decoupling surface (8, 9) and covers this large light decoupling surface (8, 9) at least in sections.Lighting device (1) according to one of the preceding claims, characterized in that - the carrier element (10) delimits a channel-shaped receptacle (23) running in the main direction of extent (2), - wherein the lighting device (1) has a U-shaped insertion reflector (24) running in the main direction of extent (2) for reflecting light and a main light guide (25) fed with light by at least one light source, - wherein the insertion reflector (24) is arranged in the receptacle (23), - wherein the main light guide (25) is arranged in or on the insertion reflector (24), - wherein the narrow-area light coupling surface (6) is arranged opposite the main light guide (25) in or on the receptacle (23), such that light provided by the at least one light source and coupled into the main light guide (25) is coupled into the flat light guide (5) via the narrow-area light coupling surface (6) of the flat light guide (5) and is coupled out of the flat light guide (5) via the narrow-area light coupling surface (7) and the large light coupling surfaces (8, 9) along a light path (26) extending from the narrow-area light coupling surface (6) to the narrow-area light coupling surface (7) and the large light coupling surfaces (8, 9).Lighting device (1) according to claim 9, characterised in that - the carrier element (10) has at least one integral reflector (27) arranged along the light path (26) for reflecting light.Vehicle having at least one lighting device (1) according to one of the preceding claims 1 to 10.

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