Lighting and / or signalling device and motor vehicle

Abstract

The present invention provides a lighting and / or signal indicating device and a motor vehicle. Specifically, the lighting and / or signal indicating device (1, 1', 1", 1'") comprises a light source (2), a cover (10) and a reflector (20), wherein the light source (2) is arranged in a cavity (3, 3') formed by the reflector (20), and the cavity (3, 3') is covered by the cover (10), wherein a gap is left between the front edge of the wall of the reflector (20) forming the cavity (3, 3') and the cover (10), and at the gap, the cover (10) is spaced apart from the front edge of the wall of the cavity (3, 3') and is protrudingly provided with a light blocking portion (30, 30', 30") on the side facing the reflector (20), and the direction of the light blocking portion corresponds to the direction of the front edge of the wall of the cavity (3, 3').

Description

Technical Field

[0001] The invention relates to a lighting and / or signaling device and a motor vehicle. Background Art

[0002] Lighting and / or signal indicating devices, especially lamps, are indispensable parts of motor vehicles and are also important tools to ensure the normal and safe driving of motor vehicles. At present, the lamps on motor vehicles mainly include road lighting lamps (such as low beam lamps, high beam lamps, etc.), signal lamps (such as turn signals, position lamps, brake lights, etc.) and lighting lamps in the cabin. However, in actual applications, these lamps are often assembled adjacent to each other in order to share the same cover, that is, lens, and there are usually several inherent gaps between the leading edge of the wall of the cavity for the light source and the cover to prevent the generation of powder due to direct contact between the leading edge and the cover under the action of vibration, which causes the light emitted by the lamp components to easily pass through the inherent gaps and enter the adjacent lamp components, i.e., cause undesirable light leakage.

[0003] To this end, there is an urgent need in the prior art for a light leakage prevention component that can be used in a lighting and / or signal indication system and is manufactured with a simple structure to reduce or even overcome the problem of light leakage from a light source, a lighting and / or signal indication device including the light leakage prevention component, and a motor vehicle including the same. Summary of the invention

[0004] In order to solve at least one aspect of the above problems and defects in the prior art, an object of the present invention is to provide a lighting and / or signal indication device and a motor vehicle including a light leakage prevention structure.

[0005] In order to achieve the above object, the technical solution of the present invention is implemented in the following ways:

[0006] According to a first aspect of the present invention, there is provided a lighting and / or signal indicating device, comprising a light source, a cover and a reflector, wherein the light source is arranged in a chamber formed by the reflector, the chamber is covered by the cover, and the light emitted by the light source penetrates the cover and is emitted, wherein a gap is left between the front edge of the wall of the reflector forming the chamber and the cover, and at the gap, the cover is provided with a light blocking portion protrudingly spaced from the front edge of the wall of the chamber on the side facing the reflector, and its direction corresponds to the direction of the front edge of the wall of the chamber. Through this arrangement, the light emitted by the light source that reaches the gap is at least partially blocked by the light blocking portion, which is particularly conducive to solving the problem of light crosstalk when a plurality of adjacently arranged chambers are provided. In addition, by spacing the provided light blocking portion from the front edge of the wall of the chamber, it is possible to reliably avoid the vibration during vehicle driving causing the reflector to contact the light blocking portion, resulting in the formation of powder or damage to related parts. Preferably, the light blocking portion is spaced at least 2 mm from the front edge of the wall of the chamber.

[0007] The light blocking portion protruding from the side of the cover facing the light source at least partially overlaps with the front edge of the wall of the chamber in the direction of the optical axis of the light source, which further prevents light leakage or crosstalk problems caused by the existing gap.

[0008] In an embodiment according to the present invention, the front edge of the wall of the chamber is respectively provided with two light blocking parts, which are spaced apart from the front edge and are located on both sides of the front edge. In particular, when the light blocking parts are arranged on both sides of the front edge, the light entering the gap formed by the corresponding surfaces of the front edge and the light blocking parts must be reflected at least more times before it can leak out, which causes the maximum possible attenuation of the light, thereby reducing or completely avoiding light leakage or light crosstalk.

[0009] Preferably, the light blocking portion and the cover are integrally formed, in particular, injection molded from PC or PMMA, thereby reducing costs.

[0010] In an embodiment according to the present invention, a side of the light blocking portion facing away from the leading edge is provided with a reflective coating, which is, for example, the same as the reflective coating provided on the reflective surface on the inner side of the reflector, such as an aluminum coating. With this arrangement, light reaching the side of the light blocking portion is reflected toward the cover and emitted through the cover, which can further improve the utilization rate of the light of the light source.

[0011] In an embodiment according to the present invention, a light loss structure is provided on one side of the light blocking portion facing the leading edge. This arrangement is used to attenuate light entering the gap defined by the side of the leading edge and the corresponding side of the light blocking portion to the greatest extent, thereby reducing light leakage or crosstalk caused by the existing gap.

[0012] Preferably, the light loss structure is a stepped protrusion arranged in an array and spaced apart from each other, a protrusion arranged in a grid and spaced apart from each other, a pillow-shaped protrusion in an array and adjacent to each other at the edge, or a strip-shaped protrusion arranged side by side. In addition, the light loss structure can also be a light absorbing layer.

[0013] In an embodiment according to the present invention, the height of the light blocking portion is at least 2 mm, thereby blocking at least the existing gap.

[0014] In an embodiment of the present invention, the side surface of the light blocking portion facing and / or away from the front edge forms an acute angle with respect to the direction of the optical axis of the light source, preferably not more than 10 degrees. This facilitates demoulding when the light blocking portion and the cover are integrally formed.

[0015] The present invention also aims to provide a motor vehicle having the lighting and / or signaling device described above.

[0016] The technical solution provided by the present invention has the following advantages: the lighting and / or signal indication device and the motor vehicle of the present invention can be provided with a light blocking part formed from an existing structure and having a simple structure, so that light leakage or light crossing is minimized through multiple reflections and / or changes in the direction of travel. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] FIG. 1( a ) shows a schematic diagram of a lighting and / or signaling device;

[0018] FIG1( b ) shows a light path diagram within the box in FIG1( a ) in a partially enlarged view;

[0019] FIG. 2( a ) shows a schematic diagram of a lighting and / or signaling device according to an embodiment of the present invention;

[0020] FIG2( b ) is a schematic diagram showing a structure within the box in FIG2( a ) in a partially enlarged view;

[0021] FIG2( c ) shows the relevant optical path diagram within the box in FIG2( b ) in a further partial enlarged view;

[0022] FIG3( a ) shows a schematic diagram of a lighting and / or signal indication device according to an embodiment of the present invention;

[0023] FIG3( b ) is a schematic diagram showing a structure within the box in FIG3( a ) in a partially enlarged view;

[0024] FIG3( c ) shows the relevant optical path diagram within the box in FIG3( b ) in a further partial enlarged view;

[0025] FIG. 4( a ) shows a schematic diagram of a lighting and / or signal indication device according to an embodiment of the present invention;

[0026] FIG4( b ) is a schematic diagram showing a structure within the box in FIG4( a ) in a partially enlarged view;

[0027] FIG4( c ) shows the relevant optical path diagram within the box in FIG4( b ) in a further partial enlarged view;

[0028] FIG. 4( d ) shows a schematic perspective view of a cover having a light blocking portion of the lighting and / or signaling device as shown in FIG. 4( c );

[0029] FIG. 5( a ) is a schematic diagram showing an example structure of a lighting and / or signal indication device according to an embodiment of the present invention in a similar manner to FIG. 2( c );

[0030] FIG5( b ) is a schematic diagram showing another exemplary structure of a lighting and / or signal indication device according to an embodiment of the present invention in a similar manner to FIG2( c );

[0031] Figure 6(a) and 6(b) A schematic diagram showing the structure of an additional optical device or structure as shown in FIG5( a );

[0032] FIG6( c ) is a schematic diagram showing the structure of an additional optical device or structure as shown in FIG5( b ). DETAILED DESCRIPTION

[0033] The technical solution of the present invention is further specifically described below by examples and in conjunction with the accompanying drawings. In the specification, the same or similar figure numerals represent components with the same or similar functions. The following description of the embodiments of the present invention with reference to the accompanying drawings is intended to explain the overall inventive concept of the present invention, but should not be construed as a limitation of the present invention. In addition, in the following detailed description, for ease of explanation, many specific details are set forth to provide a comprehensive understanding of the disclosed embodiments. However, it is obvious that one or more embodiments may also be implemented without these specific details.

[0034] FIG. 1( a) shows a schematic diagram of a lighting and / or signal indicating device; FIG. 1( b) shows a light path diagram within the box in FIG. 1( a) in a partially enlarged view. The lighting and / or signal indicating device has a cover 10, a reflector 20 and light sources 2, 2'. In the illustrated diagram, the light sources 2, 2' are supported on the reflector 20, respectively, but the light sources 2, 2' can also be supported on a separately arranged bracket. The reflector is coated with a reflective coating (not shown) on the side facing the cover 10 to reflect the light source in the direction of the cover 10. Here, the cover 10 is a light-permeable component, which is, for example, white or correspondingly colored, such as red or amber, to perform the desired function. Alternatively, the cover 10 can also be configured as a lens so that the light distribution of the light leaving the cover 10 meets regulatory requirements. The reflector 20 forms chambers 3 and 3', and light sources 2 and 2' are arranged in the corresponding chambers 3 and 3'. For example, light sources with different functions can be arranged in the chambers 3 and 3', respectively. A gap is left between the cover 10 and the reflector 20, and the gap is at least 2 mm to prevent the cover 10 and the reflector 20 from colliding with each other when the whole lamp vibrates to generate powder and damage related parts. In the illustrated diagram, the cover 10 and the reflector 20 enclose two closed chambers 3 and 3', and light sources 2 and 2' are arranged therein, respectively. A gap is left between the front edges of the walls of the reflector 20 that form the two chambers relative to the cover 10. The light sources 2 and 2' have different functions, thereby forming two functional lamp assemblies A and A' arranged adjacently. However, due to the existence of the gap, the light beams emitted by the light sources 2 and 2' of the two functional lamp assemblies A and A' to their respective covers will inevitably enter the other lamp assembly at the gap. For example, as shown in the schematic optical path of the light source 2 in component A in FIG1( b ), light totally reflected on the reflector can enter component A', thereby causing a light crosstalk problem, which causes interference of each emitted light with the emitted light of another lamp component.

[0035] Figure 2(a) to Figure 2(c) A schematic diagram of a lighting and / or signal indication device and a related light path diagram according to an embodiment of the present invention is shown.

[0036] In this embodiment of the present invention, the structure of the lighting and / or signal indicating device 1 is basically similar to the lighting and / or signal indicating device described above with reference to FIG. 1(a) and FIG. 1(b), that is, it includes a cover 10, a reflector 20 and light sources 2, 2'. However, as shown in FIG. 2(a), a light leakage prevention structure for light sources 2, 2' is provided between the functional lamp assemblies A and A' of the lighting and / or signal indicating device 1 according to the present invention, which is a light blocking portion 30 arranged on the side of the cover 10 facing the reflector 20 and extending from the cover 10 toward the reflector 20, and the light blocking portion 30 has a gap relative to the front edge of the wall of the corresponding cavity, and the gap is at least 2mm, and the light blocking portion 30 overlaps with the front edge of the wall at least partially in the direction of the optical axis of the light source, thereby preventing light from leaking directly through the gap. Here, the cover is, for example, a lens common to the two functional lamp assemblies A and A' as shown in FIG. 2(a), or a frame that constrains / limits the lenses of the two functional lamp assemblies A and A' respectively. The reflector 20 is, for example, a shell portion shared by the two functional lamp assemblies A and A' shown in FIG. 2(a), and is coated with a reflective layer on its sides facing the light sources 2 and 2', respectively, for focusing light of the lamp assemblies A and A' toward their respective lens surfaces, and Figure 2(b) , 2(c) As shown, the reflector 20 is spaced apart from the cover 10 by a gap 40 and is provided with a first reflective surface 21. The light blocking portion 30 extends from the cover 10 toward the reflector 20. The light blocking portion is spaced apart from the reflector 20 and is provided with a first surface 31 at least partially opposite to the first reflective surface 21, and the first reflective surface 21 and the first surface 31 are arranged so that the light from the light source 2 and emitted through the gap 40 is minimized by multiple reflections and / or changes in the traveling direction between the first reflective surface 21 and the first surface 31. The light blocking portion also includes a second surface 32 facing away from the first reflective surface 21, and the second surface can be used to reflect the light from the light source 2 back so as to change the direction. In other words, the leakage of light from the gap 40 is correspondingly reduced by changing the traveling direction of the light.

[0037] Thus, on the one hand, by providing the light blocking portion 30 extending from the cover 10, a part of the light emitted from the light source 2 to the gap 40 is blocked by the light blocking portion 30, or guided in a direction away from the gap 40 after being reflected or scattered, thereby increasing the brightness of the light beam emitted from the exit surface of the lamp assembly itself where the light source 2 is located compared to the case where the light blocking portion is not provided; in other words, the leakage of light from the gap 40 is correspondingly reduced by changing the traveling direction of the light. And, on the other hand, since the light blocking portion 30 is separated from the reflector 20 and has a first surface 31 at least partially opposite to the first reflective surface 21 of the reflector 20, another part of the light emitted from the light source 2 to the gap 40 is reflected multiple times between the first reflective surface 21 and the opposite first surface 31, and is attenuated at each reflection; in other words, the attenuation of the light before it is emitted from the gap 40 is increased by increasing the frequency of the light being reflected, thereby reducing the leakage of light from the gap 40 accordingly. Through the above two aspects of the light blocking portion, the light leakage from the gap 40 is minimized.

[0038] The first reflecting surface 21 can be arranged to be parallel to the first surface 31, so that the light is reflected back and forth multiple times between the two and travels toward the gap 40. Every two sequential reflections (for example, first reflecting from the first reflecting surface 21 toward the first surface 31, and then reflecting from the first surface 31 toward the first reflecting surface 21) are regarded as a pair of reflections. The light attenuation and guidance caused by each pair of reflections are similar, and it is easy to deduce the leakage of residual light that finally emerges from the gap 40 after multiple reflections and attenuation.

[0039] Alternatively, as shown in Fig. 2(c), the first reflecting surface and / or the first surface are at an angle with the optical axis direction of the light source, such as an acute angle, such as 10°, more preferably 3° or 1° or a smaller value. In particular, the cross section of the light blocking portion 30 gradually decreases in the direction toward the light source for easy demoulding.

[0040] The first surface 31 may be configured to not satisfy the total reflection condition so that the light from the light source is not totally reflected thereon, so as to enhance the attenuation of the light propagating toward the gap 40 when being reflected between the first reflective surface and the first surface.

[0041] Figure 3(a) shows a schematic diagram of a lighting and / or signal indicating device 1' according to an embodiment of the present invention; Figure 3(b) shows a schematic diagram of the structure within the box in Figure 3(a) in a partially enlarged view; and Figure 3(c) shows the optical path diagram within the box in Figure 3(b) in a further partially enlarged view.

[0042] In this embodiment of the invention, the structure of the lighting and / or signaling device 1' is substantially similar to Figure 2(a) to Figure 2(c)The lighting and / or signaling device 1 shown is different in that the second light leakage prevention structure is arranged in that the light blocking portion 30' having the first surface 31' is arranged on the other side of the front edge of the wall of the chamber and has a gap 40' relative to the front edge. Figure 2(a) to Figure 2(c) Description.

[0043] Figure 4(a) shows a schematic diagram of a lighting and / or signal indicating device 1" according to another embodiment of the present invention; Figure 4(b) shows a schematic diagram of the structure within the box in Figure 4(a) in a partially enlarged view; Figure 4(c) shows the light path diagram within the box in Figure 4(b) in a further partially enlarged view. In this lighting and / or signal indicating device 1", the third anti-light leakage structure is essentially a combination of the first and second anti-light leakage structures mentioned above, including two light blocking parts 30 and 30' extending from the cover 10 toward the reflective member 20, which are located on both sides of the front edge of the wall of the chamber when the lighting and / or signal indicating device 1" is assembled; and Figure 4(d) shows a schematic three-dimensional perspective view of the cover with the third anti-light leakage structure as shown in Figure 4(c).

[0044] like Figures 4(a) to 4(c) As shown, a combination of the embodiments of FIG. 2 (c) and FIG. 3 (c) is provided. That is, the light blocking parts 30, 30' are arranged on both sides of the front edge of the wall forming the chamber on the side of the cover 10 facing the reflector 20, that is, the front edge is provided with two light blocking parts, wherein the front edge falls between the two light blocking parts 30, 30', and the two light blocking parts leave gaps 40, 40' relative to the front edge of the wall. Thus, before the light entering the gaps 40, 40' reaches the adjacent chamber, it must undergo more reflections in the path defined by the surface 31 of the light blocking part 30 and the surface 21 of the reflector 20 and the surface 31' of the light blocking part 30' and the surface 22 of the reflector 20, which further increases the frequency of light being reflected before emitting and reduces the amount of light that is finally leaked.

[0045] Preferably, as can be seen from FIG. 4( c ), a reflective coating 60 is provided on the side of the light blocking portion 30, 30' away from the leading edge (here, only the reflective coating 60 provided on the outer side of the light blocking portion 30' on the left side facing away from the leading edge is exemplarily shown, and it can also be provided on the outer side 32' of the light blocking portion 30 facing away from the leading edge), and a reflective film layer 50 is provided on at least the area other than the leading edge of the surface 21, 22 of the reflector 20. Thus, the leakage of light from the gap 40 and then through the gap 40' is correspondingly reduced by changing the traveling direction of light.

[0046] Fig. 4(d) shows a perspective view of the cover 10 provided with light blocking portions 30, 30'. Here, the course of the recess defined by the light blocking portions 30, 30' corresponds to the course of the front edge of the wall of the reflector 20 forming the cavity.

[0047] Fig. 5(a) and Fig. 5(b) are schematic diagrams showing a lighting and / or signal indicating device 1''' according to another embodiment of the present invention in a similar manner to Fig. 2(c), which is essentially achieved by arranging additional optical devices or structures 310, 320 on the above-mentioned first anti-light leakage structure to lose light. Figure 6(a) and 6(b) FIG. 5( a ) shows a schematic structural diagram of an additional optical device or structure 310 as shown in FIG. 5( a ); and FIG. 6( c ) shows a schematic structural diagram of an additional optical device or structure 320 as shown in FIG. 5( b ).

[0048] like Figure 5(a) and 5(b) As shown, the surface 31 of the light blocking portion 30″ facing the front edge is configured as a non-mirror reflection surface for enhancing reflection. Specifically, for example, the surface 31 is a grain-like undulating surface or a leather-grained folded undulating surface (the leather-grain model is, for example, MT9050 or MT9010, etc.) configured to enhance diffuse reflection, and the surface 31 is provided with an additional periodically arranged additional structure 310 for enhancing reflection (as shown in FIG. 5( a)), for example, including stepped protrusions arranged in an array and spaced apart from each other; or the surface 31 is provided with an additional periodically arranged additional structure 32 for enhancing reflection. 0 (as shown in FIG. 5( b)), for example, including at least one of the following: convex points arranged in a grid matrix and spaced apart from each other as shown in FIG. 6( a), pillow-shaped protrusions in an array and adjacent to each other with edges as shown in FIG. 6( b), strip-shaped protrusions arranged side by side as shown in FIG. 6( c), and a micro-optical structure configured to enhance reflection. For example, the micro-optical structure is a micro-prism. Through these second reflective surfaces as non-specular reflective surfaces, the frequency of light reflection between the light blocking portion (the second reflective surface) and the reflective member (the first reflective surface) is further enhanced, thereby correspondingly increasing the loss of light during reflection.

[0049] In an embodiment of the present invention, the light blocking portion is, for example, integrally formed on the cover. Typically, the light blocking portion is made of the same material as the cover, for example, it can be made of at least partially transparent glass, resin or plastic material, such as PMMA (polymethyl methacrylate), PC (polycarbonate), etc.

[0050] In the above-described embodiment, for example, an optical reflective film layer, such as aluminum foil, is disposed on the surface of the light blocking portion, and the reflectivity is approximately 70%.

[0051] Alternatively, the surface of the light blocking portion facing the leading edge is made of black PC material, thereby achieving a reflectivity of only about 8%, which further enhances the attenuation effect of the light incident into the gap.

[0052] The distance between the light blocking portion and the reflective element is, for example, at least 2 mm, and the inclination angle / slope angle between their respective inclined surfaces facing each other and the direction of the optical axis of the light source is, for example, not greater than 10 degrees.

[0053] Alternatively, the light blocking portion may be fixed or held to the cover member in any known manner, such as by a support or suspension manner (e.g., by a support, a suspension arm, etc.), or by a mechanical connection manner such as welding, snapping, etc. Preferably, the light blocking portion and the light emitting portion of the cover member are integrally formed, for example, by an injection molding process, so that the combination between the two is stronger and the relative vibration problem between the two that is easily caused by a mechanical connection is overcome.

[0054] It should be mentioned here that, although the lighting and / or signal indicating device provided with a light blocking portion is described with reference to the two chambers shown in the accompanying drawings, the present invention is not limited thereto. In particular, the light blocking portion may also be provided in a lighting and / or signal indicating device having one or more chambers, specifically, on one or both sides of the leading edge of the wall of the chamber and on the side of the cover facing the chamber at a distance from the leading edge, thereby at least partially preventing light from leaking out of the gap between the cover and the reflective member.

[0055] The lighting and / or signaling device according to the present invention has at least the following advantages:

[0056] The lighting and / or signal indicating device is provided with a light blocking part with a simple structure, and while keeping the original structure basically unchanged, increases the reflected frequency of light entering the gap to increase its attenuation before emitting from the gap, thereby minimizing the light leakage from the gap.

[0057] According to another aspect of the present invention, a motor vehicle is provided, comprising the lighting and / or signal indicating device as described above. Accordingly, the motor vehicle also has the advantages of the lighting and / or signal indicating device as described above, which will not be described in detail here.

[0058] Although the present invention has been described in conjunction with the accompanying drawings, the embodiments disclosed in the accompanying drawings are intended to exemplify the preferred implementations of the present invention and should not be construed as limiting the present invention.

[0059] Although some embodiments of the present general inventive concept have been shown and described, it will be appreciated by those skilled in the art that changes may be made to these embodiments without departing from the principles and spirit of the present general inventive concept, the scope of which is defined by the claims and their equivalents.

Claims

1. A lighting device (1, 1', 1", 1'"), comprising a light source (2), a cover (10) and a reflector (20), wherein the light source (2) is arranged in a cavity (3, 3') formed by the reflector (20), the cavity (3, 3') is covered by the cover (10), and light emitted by the light source (2) penetrates the cover (10) and is emitted, wherein: A gap is left between the front edge of the wall of the reflective member (20) forming the chamber (3, 3') and the cover member (10), and in the gap, the cover member (10) is provided with a light blocking portion (30, 30', 30'') on the side facing the reflective member (20) so as to be spaced apart from and protruding from the front edge of the wall of the chamber (3, 3'), and the direction of the light blocking portion corresponds to the direction of the front edge of the wall of the chamber (3, 3').

2. The lighting device (1, 1', 1", 1'") according to claim 1, wherein: The light blocking portion (30, 30', 30'') at least partially overlaps with a front edge of a wall of the chamber (3, 3') in the direction of an optical axis of the light source (2).

3. The lighting device (1, 1', 1", 1'") according to claim 2, wherein: The front edges of the walls of the chambers (3, 3') are respectively provided with two light blocking parts (30, 30', 30''), which are spaced apart from the front edges and are located on both sides of the front edges.

4. The lighting device (1, 1', 1", 1'") according to any one of claims 1 to 3, wherein: The light blocking portion (30, 30', 30'') and the cover (10) are integrally formed.

5. The lighting device (1, 1', 1", 1'") according to claim 4, wherein: A reflective coating (60) is provided on a side of the light blocking portion (30, 30', 30'') facing away from the leading edge.

6. The lighting device (1, 1', 1", 1'") according to claim 4, wherein: A light loss structure is provided on one side of the light blocking portion (30, 30', 30'') facing the leading edge.

7. The lighting device (1, 1', 1", 1'") according to claim 6, wherein: The optical loss structure is step-shaped protrusions arranged in an array and spaced apart from each other, protrusions arranged in a grid matrix and spaced apart from each other, pillow-shaped protrusions in an array and adjacent to each other at the edges, and strip-shaped protrusions arranged side by side.

8. The lighting device (1, 1', 1", 1'") according to claim 6, wherein: The light loss structure is a light absorbing layer.

9. The lighting device (1, 1', 1", 1'") according to any one of claims 1 to 3, wherein: The light blocking portion (30, 30', 30'') has a height of at least 2 mm.

10. The lighting device (1, 1', 1", 1'") according to any one of claims 1 to 3, wherein: The angle formed by the side surfaces of the light blocking portion (30, 30', 30'') facing and / or facing away from the front edge relative to the direction of the optical axis of the light source (2) is an acute angle.

11. The lighting device (1, 1', 1", 1'") according to claim 10, wherein: The angle is no greater than 10 degrees.

12. A motor vehicle having a lighting device (1, 1', 1", 1'") according to any one of claims 1 to 11.

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