Lighting device for a motor vehicle

Abstract

Lighting device for a motor vehicle, comprising at least one light source (2) and at least one cover plate (11, 17), wherein the lighting device is suitable for generating at least one signaling function (15) and is designed to be mounted behind an at least partially transparent section (14) of a body component (13) of the motor vehicle such that the light generated by the at least one light source (2) exits the lighting device through the cover plate (11, 17) and passes through the at least partially transparent section (15) of the body component (13) to generate the at least one signaling function (15).

Description

[0001] The present invention relates to a lighting device for a motor vehicle and a motor vehicle with such a lighting device.

[0002] Design has long been a determining factor for a motor vehicle's signaling functions, such as tail lights, brake lights, turn signals, or daytime running lights, in taillights or headlights. The design of these lighting devices has become even more important since the introduction of LED technology because the small light-emitting diodes, often used in large numbers, can be used much more flexibly than a large incandescent bulb as a light source for a signaling function, thus offering a wide variety of design options in conjunction with the selected optical system.

[0003] A variation of LED technology can be found in the form of OLED technology, in which the light source is not a small point like an LED, but rather a flat and larger design in order to create a desired luminous area that can be illuminated very evenly. The disadvantage of OLED technology is its significantly higher costs compared to LED technology. The reasons for these high costs are a complex manufacturing process, the different shapes dictated by each design, and low production runs. In addition, there are specific, high requirements in the automotive sector, such as resistance to UV exposure and forces such as vibrations, shocks and shaking, as well as temperature resistance in a range of -40°C to +85°C or +100°C. These requirements are much more difficult for an organic light-emitting diode to meet than for standard light-emitting diodes.

[0004] This has led to the search for alternative solutions to achieve a design similar to that achieved with organic light-emitting diodes (OLEDs), particularly a uniformly illuminated surface. This is achieved by using light-emitting diodes (LEDs) with a flat light guide and upstream optics, in the form of microstructured films or thin optical discs, to scatter the light emitted from the light guide. Overall, this provides a flat light module that offers high performance with uniform illumination of the entire surface.

[0005] Just as with organic light-emitting diodes, when integrated into a rear light, several flat light modules can be positioned offset next to and behind each other to create the desired individual appearance of the signal function, for example the tail light or the tail brake light.

[0006] Such a lighting device is known from DE 10 2021 122 264 A1. The lighting device described therein comprises a lighting module designed as a flat light module, which has at least one light source, a light guide, a diffuser, and a luminous surface designed as a cover plate, from which light emanates during operation of the lighting device. The flat light module further comprises a housing with a reflective surface.

[0007] The technology of flat light modules with light guides and optical discs or optical films in a flat housing and a cover disc can be extended to design a flat rear light with larger dimensions up to a rear light that extends as a strip-shaped element across the entire or almost entire width of the vehicle and can also be designed as a curved, arched surface.

[0008] The large, strip-shaped surface forms the light emitting surface, a continuous, single-piece luminous surface that can, however, display or provide various signaling functions. The components and technology themselves allow the entire light to be curved to ensure harmonious integration, adapted to the contours of the body.

[0009] New vehicles, especially electric vehicles that don't require a radiator, currently feature ambient auxiliary lighting in the front area of ​​the vehicle between the headlights. This is used to supplement the position lights in the center of the headlights with additional illumination, thus allowing the position light to function as a light strip. At the rear of the vehicle, it has long been possible to configure the taillights as a smaller left or right light, or to supplement them with another central light on the trunk lid.

[0010] Furthermore, automotive lighting technology is currently discussing ways to integrate and implement display technologies in vehicles to enable digital lighting control options and the display of different light signatures or even symbols and warnings. Another increasingly popular desire among vehicle and lighting designers is the concealment of lighting functions, with lighting functions deliberately integrated into a dark environment or arranged behind surfaces with a body-color appearance.

[0011] DE 10 2022 000 054 A1 discloses a lighting device that has a light indicator in a central area of ​​the vehicle's front end. This design is intended to improve the vehicle's external appearance and marketability.The lighting device described therein comprises a translucent lighting cover configured to transmit light through a first surface and a second surface thereof, and an LED module having an LED mounted on the second surface of the translucent lighting cover for emitting light, wherein the translucent lighting cover has a design pattern portion formed by the transmission of the light when the LED is turned on, a painted portion formed on the first surface of the translucent lighting cover, the painted surface being visible when the LED is turned off, and a metal-coated surface formed on the painted portion.

[0012] The problem underlying the present invention is to provide a generic lighting device that can generate at least one signaling function and can be arranged concealed behind a section of the rear or front area of ​​the body. Furthermore, a motor vehicle with such a lighting device is to be specified.

[0013] This is achieved according to the invention by a lighting device of the type mentioned at the outset having the features of claim 1 and by a motor vehicle having the features of claim 12. The subclaims relate to preferred embodiments of the invention.

[0014] According to claim 1, the lighting device comprises at least one light source and at least one cover plate, wherein the lighting device is suitable for generating at least one signaling function and is configured to be mounted behind an at least partially transparent section of a body component of the motor vehicle such that the light generated by the at least one light source exits the lighting device through the cover plate and passes through the at least partially transparent section of the body component to generate the at least one signaling function. This creates a lighting device that can be arranged hidden behind a partially transparent or translucent body surface and is nevertheless suitable for fulfilling signaling functions, in particular also with higher intensities.The partially transparent or translucent body surface can be arranged, for example, at the rear or front of the vehicle.

[0015] It can be provided that the lighting device comprises a planar light guide with an entrance surface and at least one exit surface, wherein the lighting device is designed such that the light generated by the at least one light source enters the light guide at least partially through the entrance surface, that the light entering through the entrance surface exits at least partially from the at least one exit surface and exits the lighting device at least partially through the cover plate.Furthermore, it can be provided that the lighting device comprises at least one optical component, wherein the lighting device is configured such that the light emerging from the at least one exit surface of the light guide passes at least partially through the at least one optical component and / or is reflected by the at least one optical component, wherein the light passing through the at least one optical component exits the lighting device at least partially through the cover plate. The at least one optical component can be designed as a microstructured film and / or as a microstructured optical plate, wherein the at least one microstructured film or the at least one microstructured optical plate is arranged, for example, between the light guide and the cover plate.This creates an efficient lighting device for integration behind the body surface, corresponding to the flat-light concepts described. This lighting device can have a very flat design, requires minimal installation space, and can be positioned directly behind the partially transparent, illuminated body surfaces.

[0016] It is possible for the at least one optical component to be designed as an at least partially reflective surface arranged on the side of the light guide facing away from the cover plate, wherein the lighting device is configured such that light emerging from the exit surface of the light guide facing away from the cover plate impinges on the reflective surface, is reflected back from this to the exit surface, and at least partially re-enters the light guide before emerging from the exit surface facing the cover plate and passing through the at least one cover plate. In this way, the lighting device can offer high performance, as in a flat light module, through rear-side reflection of the light emerging from the light guide and through targeted scattering on the microstructured films and / or optical plates with homogeneous illumination of the cover plate.The light emerging from the cover plate can illuminate the rear side of the body component comparatively homogeneously and pass through the transparent sections of the body component to generate at least one signaling function.

[0017] Alternatively, the cover plate can be a film with a diffuser structure. In this embodiment, the light guide between the at least one light source and the at least one cover plate can be omitted. In this embodiment, too, the light emerging from the at least one cover plate from the at least one light source can illuminate the rear of the body component relatively homogeneously and pass through the transparent sections of the body component to generate at least one signaling function.

[0018] It is possible for the lighting device to be designed to extend across the entire or almost the entire width of the motor vehicle when installed. The at least one cover plate and / or the light guide can be designed to extend across the entire or almost the entire width of the motor vehicle. Alternatively, it can be provided that the lighting device comprises a plurality of modules, each having at least one light source and at least one cover plate, in particular wherein the modules are designed to be arranged next to one another in the transverse direction of the motor vehicle. In this way, the modules arranged next to one another can together extend across the entire or almost the entire width of the motor vehicle. Due to the modular design, the shape of the lighting device can easily follow any curvature of the body component.

[0019] It can be provided that the at least one light source is designed as a light-emitting diode, preferably that several light sources designed as light-emitting diodes are provided, which are arranged on a, in particular common, circuit board. At least one first and at least one second of the light sources can differ from one another with regard to the color of the light they generate in order to implement different signaling functions of the motor vehicle, such as a tail light, a brake light, a turn signal, or a daytime running light.

[0020] According to claim 12, the motor vehicle comprises a lighting device according to the invention.

[0021] It can be provided that the body of the motor vehicle has a body component with at least one at least partially transparent section, behind which the lighting device is arranged. This body component with the at least one at least partially transparent section can be arranged in particular in the rear or front area of ​​the body.

[0022] It is possible for the at least partially transparent section to extend across the entire or almost the entire width of the body component and / or the motor vehicle, or for a plurality of at least partially transparent sections to be provided, distributed across the width of the body component and / or the motor vehicle, each having, for example, a circular, oval, rectangular, triangular, or hexagonal cross-section. In this way, the design of the body component can be adapted to many different vehicle designs.

[0023] The invention is explained in more detail below with reference to the accompanying drawings. In the drawings: Fig. 1 a perspective detailed view of a first embodiment of a lighting device according to the invention; Fig. 2 a front view of the lighting device according to Fig. 1; Fig. 3 a front view of the lighting device according to Fig. 1 without cover plate; Fig. 4 a detail of the front view according to Fig. 3; Fig. 5 another detail of the front view according to Fig. 3; Fig. 6 a detail of the front view according to Fig. 4; Fig. 7 a plan view of the lighting device according to Fig. 1 with a body component of the body of a motor vehicle according to the invention; Fig. 8 a detail of a plan view according to Fig. 7; Fig. 9 shows a detail of a front view of a first embodiment of a body component of a motor vehicle according to the invention; Fig. 10 shows a detail of a front view of a second embodiment of a body component of a motor vehicle according to the invention; Fig. 11 shows a detail of a front view of a third embodiment of a body component of a motor vehicle according to the invention; Fig. 12 shows a detail of a front view of a fourth embodiment of a body component of a motor vehicle according to the invention; Fig. 13 shows a detail of a front view of a fifth embodiment of a body component of a motor vehicle according to the invention; Fig. 14 shows a detail of a front view of a sixth embodiment of a body component of a motor vehicle according to the invention; Fig. 15 a detail of a front view of the body component according to Fig. 9, wherein the lighting device generates a first signal function; Fig. 16 a detail of a front view of the body component according to Fig. 9, wherein the lighting device generates a second signal function; Fig. 17 a detail of a front view of the body component according to Fig. 9, wherein the lighting device generates a third signal function; Fig. 18 a detail of a front view of the body component according to Fig. 9, wherein the lighting device generates a fourth signal function; Fig. 19 a detail of a front view of the body component according to Fig. 9, wherein the lighting device generates a fifth signal function; Fig. 20 a detail of a front view of the body component according to Fig. 9, wherein the lighting device generates a sixth signal function; Fig. 21 is a perspective view of a second embodiment of a lighting device according to the invention; Fig. 22 a plan view of the lighting device according to Fig. 21.

[0024] In the figures, identical or functionally identical parts are provided with the same reference symbols.

[0025] The Fig. 1 to Fig. 8 illustrated embodiments of a lighting device according to the invention comprises a plurality of modules 1 (see for example Fig. 3), which are designed to be arranged next to one another in the transverse direction of the motor vehicle. Each of the modules 1 is designed as a flat light module.

[0026] Each of the modules 1 comprises several light sources 2 (see for example Fig. 4), which are designed as light-emitting diodes (LEDs). In Fig. 4 and Fig. 6 shows a circuit board 3 on which the light sources 2, designed as light-emitting diodes, are arranged. The multiple light-emitting diodes can also have different colors, for example, to implement a dual or triple function. These functions can be, for example, a position light, a daytime running light, and a turn signal, or a position light, a daytime running light, and an autonomous driving function, with the autonomous driving function requiring a cyan color.

[0027] To provide different luminous fluxes sufficient for the respective desired signal functions, LEDs with different power levels can be used. Alternatively or additionally, the number of LEDs can be influenced by adjusting the distance D between two adjacent LEDs (see Fig. 6). Two different LEDs 2a, 2b can be placed alternately next to each other, such as a red and yellow LED, a red and cyan LED, a red and white LED, or a red and RGB LED. This allows the implementation of any desired signaling functions or animations for a welcome-goodbye scenario.

[0028] Each of the modules 1 further comprises at least one planar light guide 4, which has an upper frontal entry surface 5 and a first and a second exit surface 6 (see Fig. 1). The exit surfaces 6 are formed by the Fig. 1 in the vertical direction extending wide surfaces of the light guide 4 or by the front and the back of the light guide 4.

[0029] Each of the modules 1 further comprises at least one first optical component 7, configured as a microstructured film and / or microstructured optical disk, arranged in front of the first exit surface 6 of the light guide 4, and at least one second optical component 8, configured as a microstructured film and / or microstructured optical disk, arranged in front of the first optical component 7. At least the second optical component 8 is optional and can also be omitted. The at least one optical component 7, 8 can have a structure (not shown), which can contribute to the diffusion and homogenization of the light emerging from the lighting device.

[0030] Each of the modules 1 further comprises a housing in which the light sources 2, the at least one light guide 4 and the optical components 7, 8 such as the at least one microstructured film and / or the at least one microstructured optical disc can be at least partially accommodated. The housing is designed in two parts to simplify assembly of the optical components and has a rear housing part 9 (see Fig. 1) and a front housing part (not shown). The at least one light guide 4 and the optical components 7, 8 can then be positioned between these housing parts 9 and held and fixed in the joining of the two housing parts 9. The housing parts 9 can be locked together, screwed from the rear, or welded. On the rear housing part 9, Fig. 1 visible cooling fins 12 for cooling the light sources 1 designed as light-emitting diodes.

[0031] Each of the modules 1 further comprises at least one reflective optical component 10, which is, for example, a reflective optical film having a white surface to diffusely reflect the light back. Alternatively, the rear housing part 9 can have a rear wall that is at least partially reflective. The reflective optical component 10 can be bent at the edges, so that both the second or Fig. 1 rear exit surface of the light guide 4 as well as the lateral edges of the light guide 4 are covered in order to ideally reflect exiting light back into the light guide 4.

[0032] Each of the modules 1 further comprises at least one cover plate 11, which is illuminated as homogeneously as possible by the light emerging from the light guide 4 (see Fig. 1). The cover plates 11 can serve as illuminated exit surfaces of the modules 1. It is possible for the cover plate 11 to be formed as a two-component part integrally with the front housing part (not shown).

[0033] Each module 1 can, for example, have exactly one light guide 4, exactly one first optical component 7 and exactly one cover plate 11 (see, for example, Fig. 2). However, it is also possible for one or each of the modules 1 to have two or more than two light guides 4 arranged next to one another, two or more first optical components 7 arranged next to one another, and two or more cover plates 11 arranged next to one another (see, for example, Fig. 4).

[0034] During operation of the lighting device, light emanating from the light sources 2 is coupled into the entrance surface 5 of the light guide 4 in each module 1. From the first or Fig. 1 front exit surface 6, a portion of the coupled-in light exits directly and leaves the lighting device after passing through the optical components 7, 8 and the cover plate 11. Furthermore, a portion of the light propagating in the light guide 4 exits the second exit surface of the light guide 4 and strikes the reflective optical component 10. From this, the light is reflected back to the second exit surface, so that it at least partially re-enters the light guide 4 through the second exit surface before exiting the first exit surface 6 and leaving the lighting device through the optical components 7, 8 and the cover plate 11.

[0035] In the top views in Fig. 7 and Fig. 8 shows a body component 13 which has a plurality of spaced-apart transparent sections 14. The body component 13 can, for example, be similar to the one shown in Fig. 9, in which the transparent sections 14 have an elongated oval cross-section.

[0036] The Fig. 9 to Fig. 20 depicted body components 13 are designed in particular as a body component 13 extending in the rear area of ​​the motor vehicle, in particular as the rear of the vehicle. Fig. 9 to Fig. 20 the outer rear lights are not shown.

[0037] Alternatively, it is certainly possible for the body component 13 to be arranged in the front area of ​​the body.

[0038] The depicted body component 13 is curved at least in sections, for example in the trunk area of ​​the motor vehicle. The body component 13 can in particular consist of a transparent plastic component, which is refined into a colored body component using suitable process steps, but has transparent or partially transparent translucent surface areas through which light from a lighting device arranged behind it can be emitted. These surface areas can, for example, be the Fig. 8 and Fig. 9 illustrated sections 14. The finishing of the transparent plastic component can be achieved, for example, by a multi-layer coating on the inside and / or outside or by the integration of a film.

[0039] Fig. 7 and Fig. 8 illustrate that the lighting device, due to its modular design, is very well suited for placement behind the curved surface of the body component 13. Furthermore, for example, Fig. 7, that the lighting device is very narrow and therefore requires only little installation space behind the body component 13.

[0040] It is certainly possible for the lighting device, instead of a modular structure, to have a one-piece light guide 4 that can extend across the width of the body component 13 and thus across the entire or almost the entire width of the motor vehicle. In this case, the optical components 7, 8, 10 and the cover plate are preferably also formed as a single piece, whereby the optical components 7, 8, 10 and the cover plate can also extend across the width of the body component 13.

[0041] The light emerging from the at least one cover plate 11 of the lighting device illuminates the rear side of the body component 13 comparatively homogeneously and can pass through the transparent sections 14 of the body component 13 to generate at least one signal function. For example, in the case of the Fig. In the embodiment shown in Figure 9, the light of the lighting device passes through the transparent sections 14 arranged next to one another in the transverse direction of the vehicle to generate at least one signaling function. Furthermore, an optional logo 18 is arranged below these sections 14, which can also be illuminated by the light of the lighting device.

[0042] The shape and arrangement of the transparent sections 14 of the body component 13 can be defined relatively freely. For example, the cross section of the transparent sections 14 of the body component 13 can be Fig. 9 may differ from the shape of elongated ovals shown.

[0043] Fig. 10 shows a body component 13 that has only one transparent section 14 that extends across a large portion of the width of the body component 13 and is rectangular in shape. This section 14, which extends across a large portion of the width of the body component 13, can also have a different shape, such as an oval shape.

[0044] Fig. 11 shows a body component 13 having a plurality of transparent sections 14 arranged side by side and one above the other, which have a hexagonal cross section.

[0045] Fig. 12 shows a body component 13 which has a plurality of transparent sections 14 arranged side by side and one above the other and having a square cross section.

[0046] Fig. 13 shows a body component 13 having a plurality of transparent sections 14 arranged side by side and having a triangular cross-section.

[0047] Fig. 14 shows a body component 13 which has a plurality of transparent sections 14 arranged side by side and one above the other, which have a triangular cross section, wherein the sections 14 according to Fig. 14 smaller than sections 14 according to Fig. 13 are.

[0048] In the Fig. 15 to Fig. 20 illustrates exemplary signal functions 15 that can be achieved with a lighting device comprising a plurality of light-emitting diodes of different colors. The body component 13 used was the Fig. 9 is used. However, it is certainly possible to use differently designed body components 13 (see for example the variants in the Fig. 10 to Fig. 14) it is possible to realize the exemplary signal functions 15.

[0049] At Fig. 15 a signal function 15 is activated, which corresponds to a red brake light or a red tail brake light.

[0050] At Fig. 16 a signal function 15 is activated, which corresponds to a red tail light.

[0051] At Fig. 17, a signal function 15 is activated, which corresponds to a white reversing light or a cyan autonomous driving signal.

[0052] At Fig. 18 a signal function 15 is activated, which corresponds to a red and / or yellow tail flashing light.

[0053] At Fig. 19 a signal function 15 is activated, which corresponds to a red rear fog light.

[0054] At Fig. 20, a signal function 15 is activated, which corresponds to a colored, animated welcome-goodbye scenario.

[0055] The Fig. 21 and Fig. The embodiments of a lighting device according to the invention shown in Figure 22 also comprise a plurality of modules 16 designed to be arranged next to one another in the transverse direction of the motor vehicle. The structure of these modules 16 differs from that of a flat light module.

[0056] Each of the modules 16 has at least one light source, the light from which can exit the module 16 through a cover plate 17. The cover plate 17 can be designed as a film with a diffuser structure. When using two or more light sources per module 16, it is possible to arrange components between the individual light sources that can separate the light from the individual light sources from one another.

[0057] This embodiment of a lighting device can also be arranged behind a body component 13 with at least one at least partially transparent section 14. The light emerging from the cover plates 17 of the modules 16 from the at least one light source can illuminate the rear side of the body component 13 comparatively homogeneously and pass through the transparent sections 14 of the body component 13 to generate at least one signaling function.

[0058] In this embodiment of a lighting device, the light sources can also be designed as light-emitting diodes (LEDs), which in particular can also have different colors from one another. List of reference symbols 1 module 2 light source 2a, 2b LED 3 circuit board 4 light guides 5 Entrance surface of the light guide 6 Exit surface of the light guide 7 first optical component 8 second optical component 9 rear housing part 10 reflective optical component 11 Cover plate 12 cooling fins 13 Body component 14 at least partially transparent section of the body component 15 Signal function 16 Module 17 Cover plate 18 Logo D Distance between adjacent LEDs QUOTES CONTAINED IN THE DESCRIPTION

[0000] This list of documents submitted by the applicant was generated automatically and is included solely for the convenience of the reader. This list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions. Cited patent literature

[0000] DE 10 2021 122 264 A1

[0006] DE 10 2022 000 054 A1

[0011]

Claims

[1] Lighting device for a motor vehicle, comprising at least one light source (2) and at least one cover plate (11, 17), wherein the lighting device is suitable for generating at least one signaling function (15) and is designed to be mounted behind an at least partially transparent section (14) of a body component (13) of the motor vehicle such that the light generated by the at least one light source (2) exits the lighting device through the cover plate (11, 17) and passes through the at least partially transparent section (15) of the body component (13) to generate the at least one signaling function (15). [2] Lighting device according to claim 1, characterized bythat the lighting device comprises a flat light guide (4) with an entrance surface (5) and at least one exit surface (6), wherein the lighting device is set up so that the light generated by the at least one light source (2) enters the light guide (4) at least partially through the entrance surface (5), that the light entering through the entrance surface (5) exits at least partially from the at least one exit surface (6) and exits the lighting device at least partially through the cover plate (11, 17). [3] Lighting device according to claim 2, characterized bythat the lighting device comprises at least one optical component (7, 8, 10), wherein the lighting device is set up so that the light emerging from the at least one exit surface (6) of the light guide (4) passes at least partially through the at least one optical component (7, 8) and / or is reflected by the at least one optical component (10), wherein the light passing through the at least one optical component (7, 8) exits the lighting device at least partially through the cover plate (11, 17). [4] Lighting device according to claim 3, characterized by that the at least one optical component (7, 8) is designed as a microstructured film and / or as a microstructured optical disc, wherein the at least one microstructured film or the at least one microstructured optical disc is arranged, for example, between the light guide (4) and the cover disc (11, 17). [5] Lighting device according to one of claims 3 or 4, characterized by in that the at least one optical component (10) is designed as an at least partially reflective surface which is arranged on the side of the light guide (4) facing away from the cover plate (11, 17), wherein the lighting device is set up such that light emerging from the exit surface of the light guide (4) facing away from the cover plate (11, 17) impinges on the reflective surface (10), is reflected back by this to the exit surface and at least partially re-enters the light guide (4) before emerging from the exit surface (6) facing the cover plate (11, 17) and passing through the at least one cover plate (11, 17). [6] Lighting device according to claim 1, characterized by that the cover plate (11, 17) is a film with a diffuser structure. [7] Lighting device according to one of claims 1 to 6, characterized by that the lighting device is designed to extend over the entire or almost the entire width of the motor vehicle when installed. [8] Lighting device according to one of claims 1 to 7, characterized by that the at least one cover plate (11, 17) and / or the light guide (4) are designed to extend over the entire or almost the entire width of the motor vehicle. [9] Lighting device according to one of claims 1 to 7, characterized by in that the lighting device comprises a plurality of modules (1, 16), each having at least one light source (2) and at least one cover plate (11, 17), in particular wherein the modules (1, 16) are designed to be arranged next to one another in the transverse direction of the motor vehicle. [10] Lighting device according to one of claims 1 to 9, characterized bythat the at least one light source (2) is designed as a light-emitting diode, preferably that several light sources (2) designed as light-emitting diodes are provided, which are arranged on a, in particular common, printed circuit board (3). [11] Lighting device according to one of claims 1 to 10, characterized by that at least a first and at least a second of the light sources (2) differ from one another with regard to the color of the light they generate in order to realize different signaling functions (15) of the motor vehicle, such as a tail light, a brake light, a direction indicator or a daytime running light. [12] Motor vehicle with a lighting device according to one of claims 1 to 11. [13] Motor vehicle according to claim 12, characterized bythat the body of the motor vehicle has a body component (13) with at least one at least partially transparent section (14), behind which the lighting device is arranged. [14] Motor vehicle according to one of claims 12 or 13, characterized by that the body component (13) with the at least one at least partially transparent section (14) is arranged in the rear or front area of ​​the body. [15] Motor vehicle according to one of claims 12 to 14, characterized bythat the at least partially transparent section (14) extends over the entire or almost the entire width of the body component (13) and / or the motor vehicle or that a plurality of at least partially transparent sections (14) distributed over the width of the body component (13) and / or the motor vehicle are provided, each of which has, for example, a circular or an oval or a rectangular or a triangular or a hexagonal cross-section.

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