Lighting device, headlight device with such a lighting device and motor vehicle with such a lighting device

Abstract

The invention relates to a lighting device (1) for a motor vehicle (3), comprising at least one three-dimensional sign element (5) and at least one light source (7, 7.1, 7.2), wherein: - the at least one sign element (5) has a first surface (9.1) and a second surface (9.2) opposite the first surface (9.1), wherein: - the at least one sign element (5) is designed as a symbol (11) or represents a symbol (11) at least in the region of the second surface (9.2), wherein: - the at least one sign element (5) is designed to be at least partially transparent to visible light between the first surface (9.1) and the second surface (9.2), and wherein: - the at least one light source (7, 7.1, 7.2) and the at least one sign element (5) are arranged relative to each other such that light from the light source (7, 7.1, 7.2) is coupled into the sign element (5) via the first surface (9.1) and transmitted via the second surface (9.2).2) can be diffusely coupled out.

Description

[0001] The invention relates to a lighting device for a motor vehicle, a headlight device with such a lighting device and a motor vehicle with such a lighting device and / or such a headlight device.

[0002] Headlight devices for motor vehicles are known that feature flat, two-dimensional lettering and / or emblems, wherein these lettering and / or emblems are highlighted by means of illumination. It is also known that these lettering and / or emblems are preferably formed by lasering or aluminum-depositing transparent covers. However, the design possibilities and / or visual impact of such lettering and / or emblems are limited due to their flat and two-dimensional design.

[0003] German patent application DE 10 2021 107 611 A1 discloses a customizable headlight device for a motor vehicle. The headlight device comprises a lighting device, wherein the lighting device has an insert that can be customized to a customer's requirements. Furthermore, the headlight device has an access opening for inserting or removing the insert.

[0004] European patent application EP 3 616 994 A1 discloses a headlight device for a motor vehicle having at least one illumination shaping unit for generating at least one light distribution, and at least one component comprising diffractive optical elements. The headlight device additionally comprises a white light source configured to emit white light in the direction of the diffractive optical elements. The diffractive optical elements are configured to diffract the white light emitted by the at least one white light source, forming visually perceptible effects on the at least one component. A region of the at least one component on which the visually perceptible effects are formed is visible to an outside observer.

[0005] The invention is therefore based on the object of creating a lighting device for a motor vehicle, a headlight device with such a lighting device and a motor vehicle with such a lighting device and / or such a headlight device, wherein the aforementioned disadvantages are at least partially remedied, preferably avoided.

[0006] The object is achieved by providing the present technical teaching, in particular the teaching of the independent claims as well as the embodiments disclosed in the dependent claims and the description.

[0007] The object is achieved in particular by providing a lighting device for a motor vehicle. The lighting device has at least one three-dimensional symbol element and at least one light source. The at least one symbol element has a first surface and a second surface opposite the first surface, wherein the at least one symbol element is designed as a symbol or represents a symbol at least in the region of the second surface. Furthermore, the at least one symbol element is designed to be at least partially transmissive to visible light between the first surface and the second surface. The at least one light source and the at least one symbol element are arranged relative to one another in such a way that light from the at least one light source can be coupled into the at least one symbol element via the first surface and diffusely coupled out via the second surface.Advantageously, the lighting device makes it possible to easily decorate, and in particular, customize, the motor vehicle—both its interior and exterior paneling, in particular a headlight assembly—in order to achieve design differentiation from other motor vehicle manufacturers. Advantageously, the lighting device lends the motor vehicle an impressive appearance.

[0008] In the context of the present technical teaching, a symbol is, in particular, a sign accessible or understandable to the human mind. The symbol is particularly preferably a written character, particularly preferably a letter, a number, a ligature, a punctuation mark, a pictogram, a lettering, or an emblem.

[0009] In a preferred embodiment, the at least one character element is arranged directly in a beam path of the at least one light source, wherein the beam path in the

[0010] The lighting device is straight. The first surface is preferably oriented perpendicular to the beam path.

[0011] In a further preferred embodiment, the lighting device additionally comprises at least one reflection element. The at least one light source, the at least one reflection element, and the at least one character element are arranged relative to one another in such a way that light from the at least one light source is deflected by the at least one reflection element toward the at least one character element and coupled into the at least one character element via the first surface. The beam path in the lighting device thus has at least one bend.

[0012] Preferably, an auxiliary optic, in particular at least one lens, is arranged in the beam path of the at least one light source between the at least one light source and the at least one character element.

[0013] Particularly preferably, the at least one symbol element is arranged geodetically above the at least one light source in the intended installation position. Alternatively or additionally, the second surface of the at least one symbol element is arranged in the intended installation position such that a normal direction of the second surface is oriented geodetically upwards. Alternatively or additionally, the at least one symbol element is arranged in the intended installation position such that the second surface is arranged geodetically above the first surface.

[0014] The lighting device preferably additionally has at least one aperture. The at least one aperture surrounds the at least one character element in a plane parallel to the first surface and the second surface. Particularly preferably, the at least one aperture surrounds the at least one character element at a distance. Particularly preferably, the at least one aperture is configured to at least partially, preferably almost completely, absorb and / or backscatter or reflect light.

[0015] The lighting device is preferably designed such that, in the intended installation position, the at least one symbol element is visible to a viewer of the lighting device. Particularly preferably, the second surface of the at least one symbol element is visible to the viewer, wherein the at least one symbol element is recognizable as a three-dimensional symbol.

[0016] According to a further development of the invention, the at least one character element comprises a transparent material. Alternatively, the at least one character element comprises a translucent material. Alternatively, the at least one character element consists of a transparent material. Alternatively, the at least one character element consists of a translucent material. In particular, different materials produce different optical effects, so that a desired optical effect is advantageously created based on the selection of the material of the at least one character element.

[0017] Particularly preferably, the material is selected at least depending on a transmittance, a reflectance, and / or an absorption. In particular, the appearance of the at least one character element is influenced by selecting materials with different transmittances, reflectances, and / or absorptions.

[0018] According to a further development of the invention, the second surface is polished and / or designed as a high-gloss surface, in particular with a high-gloss polish, at least in some regions - preferably in the region in which the symbol is arranged and / or formed. Alternatively, the second surface is designed to be diffusely scattering, at least in some regions - preferably in the region in which the symbol is arranged and / or formed. In particular, different configurations of the second surface produce different optical effects, so that a desired optical effect is advantageously produced based on the selection of the configuration of the second surface of the at least one symbol element. Advantageously, it is possible to achieve a variety of optical effects by means of different combinations of the material of the at least one symbol element and the configuration of the second surface.

[0019] Preferably, the second surface, which is designed to be diffusely scattering at least in some regions, is designed as a Lambertian scatterer. Particularly preferably, the second surface is designed to be grained at least in some regions - preferably in the region in which the symbol is arranged and / or formed. Alternatively or additionally, the second surface is designed to be partially grained at least in some regions - preferably in the region in which the symbol is arranged and / or formed. Alternatively or additionally, the second surface is designed to be matte at least in some regions - preferably in the region in which the symbol is arranged and / or formed.

[0020] In one embodiment, the at least one symbol element comprises or consists of a transparent material, wherein the second surface is additionally designed to be diffusely scattering, particularly preferably matte, at least in some regions. Advantageously, in this embodiment, the second surface of the at least one symbol element is uniformly illuminated, whereby the symbol formed in the region of the second surface is visible largely regardless of the viewing angle.

[0021] In an alternative embodiment, the at least one character element comprises or consists of a translucent material, wherein the second surface is additionally polished at least in some areas, particularly preferably as a high-gloss surface. As a result, the light from the at least one light source is diffusely distributed throughout the at least one character element, with the at least one character element advantageously being completely illuminated.

[0022] According to a further development of the invention, the at least one light source is an LED. Advantageously, an LED as the at least one light source illuminates the at least one character element effectively and cost-effectively. In one embodiment, the at least one light source is a laser diode.

[0023] According to a further development of the invention, a brightness control is assigned to the at least one light source. Alternatively or additionally, a color control is assigned to the at least one light source. Advantageously, an optical effect of the lighting device can be individually adjusted using the brightness and / or color control.

[0024] Particularly preferably, the brightness control and / or the color control is configured to control the at least one light source to emit pulsed light. Alternatively or additionally, the brightness control and / or the color control is configured to brighten and / or dim the light of the light source, in particular periodically.

[0025] According to a further development of the invention, the lighting device comprises a plurality of character elements. The plurality of character elements forms a lettering and / or an emblem. Alternatively or additionally, the plurality of character elements are formed integrally with one another, in particular from the same material. Alternatively or additionally, the one character element alone forms a lettering and / or an emblem. This advantageously improves the aesthetics, individualization, and / or visibility of the lettering and / or emblem in the interior of the motor vehicle and / or on the exterior paneling of the motor vehicle—in particular in the headlight device. Furthermore, it is possible to achieve improved trademark protection through more complex trademark lettering.

[0026] The lettering preferably includes a reference to a technology integrated into the motor vehicle—in particular, in the headlight device. Particularly preferred is the lettering "DIGITAL LIGHT" or "Digital Light." Alternatively or additionally, the lettering is "HIGH PERFORMANCE" or "High Performance." Alternatively or additionally, the lettering is "MULTIBEAM" or "Multibeam." Alternatively or additionally, the lettering is "LED TECHNOLOGY," "LED-TECHNOLOGY," "LED Technology," or "LED-Technology." Alternatively or additionally, the lettering includes a reference to a manufacturer of the motor vehicle. Alternatively or additionally, the lettering is "Daimler," "DAIMLER," "Daimler Truck," or "DAIMLER TRUCK." Alternatively or additionally, the lettering is "MERCEDES-BENZ" or "Mercedes-Benz."

[0027] In one embodiment, all character elements of the plurality of character elements comprise or consist of an identical transparent or translucent material. Alternatively, a first character element of the plurality of character elements comprises or consists of a first material—in particular, a first transparent material or a first translucent material—and a second character element of the plurality of character elements, different from the first character element, comprises or consists of a second material different from the first material—in particular, a second transparent material or a second translucent material.

[0028] In a further embodiment, all second surfaces of the plurality of character elements are configured identically—in particular, polished or diffusely scattering. Alternatively, two second surfaces of the plurality of character elements are configured differently. In particular, a second surface of a first character element of the plurality of character elements is configured polished, and a second surface of a second character element of the plurality of character elements is configured diffusely scattering.

[0029] According to a further development of the invention, the lighting device comprises a plurality of light sources. Advantageously, the plurality of light sources makes it possible to easily create various optical effects.

[0030] In one embodiment, the lighting device comprises precisely one character element and a plurality of light sources. The plurality of light sources is assigned to the character element, so that light from the plurality of light sources is coupled into the character element assigned to the light sources. Preferably, the different light sources are configured to emit light of different colors. Thus, depending on the activation of the plurality of light sources to emit light, the character element is illuminated with a different color. This advantageously provides illumination of the character element in different colors.

[0031] In a further embodiment, the lighting device comprises a plurality of character elements and a plurality of light sources, wherein each light source of the plurality of light sources is assigned exactly one character element of the plurality of character elements, so that light from one light source is coupled into the character element assigned to the light source. This advantageously makes it possible to individually illuminate individual character elements of the plurality of character elements.

[0032] In a further embodiment, the lighting device has a plurality of character elements and a plurality of light sources, wherein each light source of the plurality of light sources is assigned at least one character element of the plurality of character elements, so that light from a light source is coupled into the at least one character element assigned to the light source.

[0033] In a further embodiment, the lighting device has a plurality of character elements and a plurality of light sources, wherein each character element of the plurality of character elements is assigned at least one light source of the plurality of light sources, so that light from at least one light source is coupled into the character element assigned to the light source.

[0034] According to a further development of the invention, the lighting device comprises a support element. The first surface of the symbol element is connected to the support element, and the support element is designed to be transparent to visible light, at least in some areas. Advantageously, the support element enables a modular design of the lighting device and thus a diverse integration of the lighting device into the motor vehicle.

[0035] Preferably, the at least one light source and the support element are arranged relative to one another such that light from the light source can be coupled into the support element via a first support surface. Furthermore, the at least one character element is arranged with the first surface on a second support surface of the support element. Particularly preferably, the at least one aperture is arranged on the second support surface.

[0036] In one embodiment, the lighting device comprises a plurality of character elements and the carrier element, wherein all character elements of the plurality of character elements are arranged on the second carrier surface.

[0037] According to a further development of the invention, the lighting device comprises a flat design component. The at least one symbol element is integrated into the flat design component. Advantageously, the at least one symbol element is thus easily arranged and secured in the lighting device. Furthermore, the design component expands the modular design of the lighting device.

[0038] In one embodiment, the planar design component has a recess, wherein the at least one symbol element is arranged in the recess. The planar design component and the at least one symbol element are arranged relative to one another such that the planar design component encompasses the at least one symbol element in a plane parallel to the first surface and, in particular, at a distance from the second surface. Particularly preferably, the planar design component is designed as the at least one panel.

[0039] In an alternative embodiment, the planar design component has a recess, with the support element being arranged in the recess. Preferably, the support element is clipped, screwed, and / or glued to the planar design component. Particularly preferably, the lighting device additionally has at least one cover, with the at least one cover being mechanically connected to the planar design component.

[0040] According to a further development of the invention, the lighting device comprises a cover. The cover is transparent and arranged behind the second surface in the beam direction. Advantageously, the at least one symbol element is easily protected by the cover—in particular from environmental influences and / or unwanted contact—without reducing the visibility of the at least one symbol element.

[0041] Preferably, the cover is optically clear. Particularly preferably, the cover comprises a transparent material. Alternatively, the cover is made of a transparent material.

[0042] In a particularly preferred embodiment, the cover overlaps the at least one character element and the flat design component.

[0043] The object is also achieved by providing a headlight device with a lighting device according to the invention or a lighting device according to one or more of the previously explained embodiments. In connection with the headlight device, the advantages already explained in connection with the lighting device arise in particular. Furthermore, the headlight device is individually designed—advantageously using three-dimensional lettering and / or emblems—in order to achieve an attractive design.

[0044] Preferably, a headlight lens of the headlight device is designed as the cover of the lighting device.

[0045] In one embodiment, the headlight device comprises an illumination device—as the actual headlight light—and at least one light source, wherein the at least one light source is different from the illumination device. Particularly preferably, the at least one light source emits light with a first light color, in particular a first wavelength, and the illumination device emits light with a second light color different from the first light color, in particular a second wavelength different from the first wavelength.

[0046] In an alternative embodiment, the illumination device of the headlight device—provided as the actual headlight light—is the at least one light source. Particularly preferably, the light coupled into the at least one character element is scattered light from the illumination device. Advantageously, unused light emitted forward from the illumination device is thus utilized to illuminate the at least one character element.

[0047] The object is also achieved by providing a motor vehicle with a lighting device according to the invention or a lighting device according to one or more of the previously explained embodiments. In connection with the motor vehicle, the advantages already explained in connection with the lighting device are particularly evident.

[0048] In one embodiment, the lighting device is integrated into the headlight device, so that the motor vehicle has a headlight device according to the invention or a headlight device according to one or more of the previously explained embodiments.

[0049] Preferably, the cover of the lighting device is integrated into the exterior paneling of the vehicle. Alternatively, the cover of the lighting device is integrated into an interior component of the vehicle.

[0050] The invention is explained in more detail below with reference to the drawing.

[0051] Showing: Fig. 1 is a schematic representation of a first and second embodiment of the lighting device, Fig. 2 is a schematic representation of a third embodiment of the lighting device, Fig. 3 is a schematic representation of a fourth embodiment of the lighting device, and Fig. 4 is a schematic representation of an embodiment of a headlight device.

[0052] Figure 1 shows a schematic representation of a first and second embodiment of a lighting device 1, in particular for a motor vehicle 3.

[0053] The lighting device 1 has a three-dimensional symbol element 5 and a light source 7, in particular an LED. The symbol element 5 has a first surface 9.1 and a second surface 9.2 opposite the first surface 9.1. The symbol element 5 is designed as a symbol 11 at least in the region of the second surface 9.2 or represents a symbol 11. Furthermore, the symbol element 5 is designed to be at least partially transmissive to visible light between the first surface 9.1 and the second surface 9.2. The light source 7 and the symbol element 5 are arranged relative to one another in such a way that light from the light source 7 can be coupled into the symbol element 5 via the first surface 9.1 and diffusely coupled out via the second surface 9.2.

[0054] The lighting device 1 is preferably designed such that, in the intended installation position, the symbol element 5 is visible to a viewer of the lighting device 1. Particularly preferably, the second surface 9.2 of the symbol element 5 is visible to the viewer, wherein the symbol element 5 is recognizable as a three-dimensional symbol 11. In particular, the lighting device 1 is integrated into an exterior paneling or an interior component of the motor vehicle 3, such that the symbol 11 is visible either to a viewer outside the motor vehicle 3 or a viewer in an interior of the motor vehicle 3. Particularly preferably, the symbol element 5 is arranged geodetically above the light source 7 in the intended installation position. Alternatively or additionally, the second surface 9.2 of the symbol element 5 is arranged in the intended installation position such that a normal direction of the second surface 9.2 is geodetically oriented upwards. Alternatively or additionally, the sign element 5 is arranged in the intended installation position such that the second surface 9.2 is arranged geodetically above the first surface 9.1.

[0055] Preferably, the character element 5 comprises a transparent material. Alternatively, the character element 5 comprises a translucent material. Alternatively, the character element 5 consists of a transparent material. Alternatively, the character element 5 consists of a translucent material.

[0056] In particular, the second surface 9.2 is polished and / or designed as a high-gloss surface, in particular a high-gloss polish, at least in some regions—preferably in the region in which the symbol 11 is arranged and / or formed. Alternatively, the second surface 9.2 is designed to be diffusely scattering, at least in some regions—preferably in the region in which the symbol 11 is arranged and / or formed. Preferably, a second surface 9.2 designed to be diffusely scattering, at least in some regions, is designed as a Lambertian scatterer, wherein the second surface 9.2 is grained, partially grained, or matte-finished, at least in some regions.

[0057] Optionally, the lighting device 1 has a brightness control 17 and / or a color control 19, wherein the brightness control 17 and / or the color control 19 is assigned to the light source 7.

[0058] In the first embodiment according to Figure 1 a)The character element 5 is arranged directly in a beam path 13 of the light source 7. The beam path 13 in the lighting device 1 is straight.

[0059] In the second embodiment according to Figure 1 b) The lighting device 1 additionally has a reflection element 15. The light source 7, the reflection element 15, and the character element 5 are arranged relative to one another in such a way that light from the light source 7 is deflected by the reflection element 15 in the direction of the character element 5 and coupled into the character element 5 via the first surface 9.1. Thus, the beam path 13 in the lighting device 1 has a bend.

[0060] Figure 2 shows a schematic representation of a third embodiment of the lighting device 1.

[0061] Identical and functionally identical elements are provided with the same reference numerals in all figures, so that reference is made to the previous description.

[0062] The lighting device 1 comprises a plurality of character elements 5, a first light source 7.1, and a second light source 7.2. Additionally, the lighting device 1 comprises a diaphragm 21 and a support element 23.

[0063] The majority of character elements 5 form a lettering 25 - in particular the lettering "DIGITAL LIGHT".

[0064] In particular, at least one character element 5 of the plurality of character elements 5 is assigned to the first light source 7.1. Preferably, the character elements 5 of the partial lettering "DIGITAL" are assigned to the first light source 7.1. Additionally, at least one character element 5 of the plurality of character elements 5 is assigned to the second light source 7.2. Preferably, the character elements 5 of the partial lettering "LIGHT" are assigned to the second light source 7.2.

[0065] The aperture 21 encompasses the plurality of character elements 5 in a plane parallel to the first surface 9.1—covered here by the aperture 21—and to the second surface 9.2. Particularly preferably, the at least one aperture 21 is configured to absorb light at least partially, preferably almost completely.

[0066] The support element 23 is designed to be transparent to visible light, at least in some areas. The aperture 21 is particularly preferably arranged on a second support surface of the support element 23.

[0067] The character elements 5 are each arranged with the first surface on the second carrier surface of the carrier element 23.

[0068] The first light source 7.1, the second light source 7.2, the reflection element 15, the carrier element 23, and the plurality of character elements 5 are arranged relative to one another in such a way that light from the first light source 7.1 and the second light source 7.2 can be coupled into the carrier element 23 via a first carrier surface of the carrier element 23 and diffusely coupled out via the second surface 9.2. In particular, three beam paths 13 are shown as examples. The light from the first light source 7.1 and the second light source 7.2 is deflected by means of the reflection element 15 in the direction of the plurality of character elements 5, wherein the light is coupled into the carrier element 23 via the first carrier surface. The light is then guided through the carrier element 23 to the character elements 5 and coupled into the character elements 5. Diffuse coupling of the light in the region of the second surfaces 9 is indicated by three arrows each.2 of the letters "D", "I" and "L".

[0069] Figure 3 shows a schematic representation of a fourth embodiment of the lighting device 1.

[0070] The fourth embodiment of the lighting device 1 comprises a plurality of character elements 5, the light source 7, the aperture 21, the support element 23, a flat design component 27, and a cover 29. Analogous to Figure 2 the majority of character elements 5 form in particular a lettering 25.

[0071] The majority of character elements 5, the aperture 21 and the support element 23 are analogous to Figure 2 arranged relative to one another. Furthermore, the plurality of character elements 5, the panel 21, and the support element 23 are arranged in a recess of the planar design component 27, wherein the panel 21 and / or the support element 23 are preferably clipped, screwed, and / or glued to the planar design component 27.

[0072] The cover 29 is transparent and is arranged behind the second surface 9.2 of the plurality of character elements 5 in the beam direction 13. Particularly preferably, the cover 29 overlaps the plurality of character elements 5 and the flat design component 27.

[0073] Figure 4 shows a schematic representation of an embodiment of a headlight device 31 with the lighting device 1.

[0074] The headlight device 31 comprises the lighting device 1. The lighting device 1 comprises a plurality of character elements 5, the light source 7, the reflection elements 15, the aperture 21, the support element 23 and the flat design component 27. Analogous to Figure 2 and Figure 3 the majority of character elements 5 form in particular a lettering 25.

[0075] Particularly preferably, the headlight device 31 comprises an illumination device 33 as the actual headlight light or—equally—a headlight emitter, wherein the illumination device 33 and the light source 7 are identical. Thus, in particular, the light coupled into the at least one character element 5 is scattered light from the illumination device 33.

Claims

1. A lighting device (1) for a motor vehicle (3), comprising at least one three-dimensional symbol element (5) and at least one light source (7, 7.1, 7.2), wherein - the at least one symbol element (5) has a first surface (9.1) and a second surface (9.2) opposite the first surface (9.1), wherein - the at least one symbol element (5) is designed as a symbol (11) at least in the region of the second surface (9.2) or represents a symbol (11), wherein - the at least one symbol element (5) is designed to be at least partially transmissive to visible light between the first surface (9.1) and the second surface (9.2), and wherein - the at least one light source (7, 7.1, 7.2) and the at least one symbol element (5) are arranged relative to one another in such a way that light from the light source (7, 7.1, 7.2) is coupled into the symbol element (5) via the first surface (9.1) and is emitted via the second surface (9.2). can be decoupled diffusely.

2. Lighting device (1) according to claim 1, wherein the character element (5) comprises a transparent or translucent material or consists of a transparent or translucent material.

3. Lighting device (1) according to one of the preceding claims, wherein the second surface (9.2) is at least partially - polished and / or as a high-gloss surface, in particular high-gloss polished, or diffusely scattering, in particular - grained, or - partially grained or - matt.

4. Lighting device (1) according to one of the preceding claims, wherein the at least one light source (7, 7.1, 7.2) is an LED.

5. Lighting device according to one of the preceding claims, wherein the at least one light source (7, 7.1, 7.2) is assigned a brightness control (17) and / or color control (19).

6. Lighting device (1) according to one of the preceding claims with a plurality of character elements (5), wherein the plurality of character elements (5) forms a lettering (25) and / or an emblem.

7. Lighting device (1) according to one of the preceding claims with a plurality of light sources (7, 7.1, 7.2), wherein in particular each light source (7, 7.1, 7.2) of the plurality of light sources (7, 7.1, 7.2) is assigned at least one symbol element (5), so that light from a light source (7, 7.1, 7.2) is coupled into the symbol element (5) assigned to the light source (7, 7.1, 7.2).

8. Lighting device (1) according to one of the preceding claims, comprising a carrier element (23), wherein the first surface (9.1) of the at least one character element (5) is connected to the carrier element (23), and wherein the carrier element (23) is designed to be at least partially transmissive to visible light.

9. Lighting device (1) according to one of the preceding claims with a flat design component (27), wherein the at least one character element (5) is integrated into the flat design component (27), wherein the flat design component (27) in particular has a recess, wherein preferably the carrier element (23) is arranged in the recess.

10. Lighting device (1) according to one of the preceding claims with a cover (29), wherein the cover (29) is transparent, and wherein the cover (29) is arranged behind the second surface (9.2) in the beam direction (13).

11. Headlight device (31) with a lighting device (1) according to one of the preceding claims, wherein preferably - a headlight glass of the headlight device (31) is designed as a cover (29) of the lighting device (1), and / or - a lighting device (33) of the headlight device (31) is the at least one light source (7, 7.1, 7.2).

12. Motor vehicle (3) with a lighting device (1) according to one of claims 1 to 10, in particular with a headlight device (31) according to claim 11.

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