Lighting device for motor vehicle

Abstract

The present invention relates to a lighting device (1) for a motor vehicle, which comprises a first light-emitting module (2) comprising first and second sub-modules (21, 22) each comprising a light source (31, 32) and a collector (41, 42), the first module comprising a lens (51) designed to project the light reflected by the collector in a light beam (F11, F12) having upper cutoffs (LB11, LB12) that are vertically offset with respect to each other.

Description

[Technical field]

[0001] The present invention relates to the field of automotive lighting, more particularly to light emitting devices for automobiles. [Background technology]

[0002] Automotive light emitting devices are known that are capable of projecting a light beam that provides low beam type lighting. This type of light beam generally has a generally flat upper cut-off, but its shape varies according to the various regulations related to the approval of these light emitting devices. For example, the European regulation ECE no. 112 specifically requires that the generally flat cut-off be located 0.57° below the original horizontal axis and projected upwards, while the American regulation no. 108 specifically requires that the generally flat cut-off be superimposed on this horizontal axis and does not require an upward projection.

[0003] To avoid designing different versions of a single device that comply with one of these regulations, it is known to split the light beam into several different parts, each of which is made with a specific light-emitting module. Thus, a first light-emitting module can provide a first light beam with an approximately flat upper cut-off, while a second light-emitting module can provide a second light beam with a protruding upper cut-off, known as a kink. Each light-emitting module is equipped with adjustment means that make it possible to vary the vertical and horizontal orientation of these light beams, so that by combining the first and second light beams with the appropriate vertical orientation, a low-beam type light beam that complies with either the European or the US regulations can be obtained. For example, to obtain a low-beam type light beam as stipulated by law in Europe, the first light-emitting module can be adjusted so that the approximately flat cut-off of the first light beam is located 0.57° below the horizontal axis, and the second light-emitting module can be adjusted so that the projection of the cut-off of the second light beam is located above this approximately flat cut-off. Rather, to obtain a low beam type beam as required by law in the United States, the first light emitting module can be adjusted so that the substantially flat cutoff of the first beam is located on a horizontal axis, and the second light emitting module can be adjusted so that the projection of the cutoff of the second beam is also located on this horizontal axis.

[0004] However, this kind of solution requires mechanical adjustment of different beam orientations in the factory, which is tedious and requires specific equipment. In addition, the beam orientation is prone to misalignment when the vehicle is moving, in particular as a result of poor steering, wear and vibration, which may require new regulations.

[0005] To eliminate these drawbacks, a light-emitting device has been devised, which comprises two light-emitting modules, each capable of emitting a light beam with a substantially flat upper cut-off, the vertical position of which differs from one beam to the other. To obtain a low-beam type light beam according to one of the rules, it is therefore sufficient to activate one of these light-emitting modules to combine one of these beams with a light beam with a coextensive upper cut-off. However, this solution is unsatisfactory in that only one of these modules is lit, while the rest remain unlit. The lack of uniformity in the lit appearance of the light-emitting device can appear unattractive and therefore poses problems. Summary of the Invention

[0006] The present invention is therefore included in this context and its object is to meet the aforementioned demands whilst eliminating the drawbacks of the various solutions mentioned.

[0007] The subject of the present invention is therefore a lighting device for a motor vehicle, comprising a first light-emitting module comprising a first sub-module comprising a first light source and a first concentrator including a reflective surface designed to collect and reflect the light emitted by the first light source, the first module comprising a lens designed to project the light reflected by the first concentrator in a first light beam having a first upper cut-off, said first light beam being formed by an image of the reflective surface of the first concentrator formed by said lens, the first light-emitting module comprising a second sub-module comprising a second light source and a second concentrator including a reflective surface designed to collect and reflect the light emitted by the second light source, the lens designed to project the light reflected by the second concentrator in a second light beam having a second upper cut-off, said second light beam being formed by an image of the reflective surface of the second concentrator formed by said lens, the first and second sub-modules being characterized in that the first upper cut-off is vertically offset with respect to the second upper cut-off.

[0008] According to the invention, it is possible to provide, via the lens of one projection device, i.e. the first light-emitting module, two light beams, each with a substantially flat upper cut-off, which are located at different heights when these beams are projected, for example, on a single vertical screen located 25 m from the light-emitting device, but the two sub-modules are adjusted in the same way. Each of these beams, when combined, for example, with another beam, thus makes it possible to provide a low-beam type lighting function that corresponds to the requirements of a particular regulation. In addition, the lit appearance of the light-emitting device remains the same from one function to the other, and the first light-emitting module remains fully lit, regardless of the low-beam type lighting function it is desired to provide.

[0009] Advantageously, the first and second light emitting sub-modules are designed such that the first upper cut-off, the second upper cut-off, respectively, are substantially flat upper cut-offs.

[0010] According to one embodiment, if the first light beam is projected on a vertical screen provided with an orthogonal reference point located 25 m from the light emitting device, the first upper cut-off is located 0.57° below the horizontal axis of said reference point. If applicable, if the second light beam is projected on the same screen located 25 m from the light emitting device, the adjustment of the first and second sub-modules remains unchanged and the second upper cut-off is approximately superimposed on the horizontal axis of said reference point. Thus, the first light beam can be responsible for creating a low beam type lighting function corresponding to the requirements of EEC regulation no. 112, while the second light beam can be responsible for creating a low beam type lighting function corresponding to the requirements of US regulation type FMVSS 108 or SAE standard. The first light emitting module is considered to include a third light emitting module comprising another light source and another concentrator including a reflective surface designed to collect and reflect the light emitted by this other light source, the lens being designed to project the light reflected by this other concentrator in another light beam formed by an image formed by the lens of the reflective surface of this other concentrator, the cutoff of this other light beam also being offset vertically relative to the first upper cutoff and the second upper cutoff.

[0011] Advantageously, the first and second sub-modules are arranged adjacent to each other along a transverse axis of the light emitting device, for example along the transverse axis along which the lens of the first light emitting module extends. Where applicable, the light emitting device may include a portion in which at least two cavities are formed, each defining both a first and a second concentrator, each cavity being provided with a reflective coating forming a reflective surface of the concentrator it defines. For example, the concentrator may include a side edge, at least a portion of which is common to the two concentrators.

[0012] Advantageously, each of the first collector and the second collector has a rear end, and the lens is designed such that a first light ray has an upper cutoff formed by an image of the rear end of the first collector formed by said lens and a second light ray has an upper cutoff formed by an image of the rear end of the second collector formed by said lens, the rear end of the first collector being vertically offset with respect to the rear end of the second collector.

[0013] For example, the reflecting surface of each of the first and second collectors can have a parabolic or elliptical shape. Preferably, the reflecting surface is a surface of revolution of said shape. Advantageously, the revolution is performed around an axis parallel to the optical axis of the lens. According to a variant, the reflecting surface is a free-form surface, a sweep surface or an asymmetric surface. It can also include a plurality of zones.

[0014] Preferably, the first and second light sources are located at the focal points of the reflecting surfaces of the first and second collectors, respectively. If applicable, the light rays reflected by the reflecting surfaces along the rear edge are parallel to the optical axis of the lens or have an inclination angle of less than 25°, preferably less than 10° in a plane perpendicular to the optical axis.

[0015] Advantageously, the first light source and the second light source are mounted on the same support, in particular a flat support. Where applicable, said support may be a printed circuit board. The first light source and the second light source can therefore emit light rays in the same direction.

[0016] Advantageously, the lens has a focal region located near said rear end of the second collector. For example, the lens can have a focal line passing horizontally through the rear ends of the first and second collectors and vertically only through the rear end of the second collector. This feature allows for a slight defocusing of the rear end of the first collector relative to the lens of the first light-emitting module, but this is not a problem since this type of optical arrangement has a large tolerance compared to the positioning of the different elements of the first light-emitting module relative to each other.

[0017] According to one embodiment of the present invention, the first light-emitting module includes a plurality of first sub-modules, each of which comprises a first light source and a first collector with a reflective surface designed to collect and reflect the light emitted by the first light source, and a plurality of second sub-modules, each of which comprises a second light source and a second collector with a reflective surface designed to collect and reflect the light emitted by the second light source, the first and second sub-modules being arranged adjacent to each other in a staggered manner. These features can enhance the uniformity of the appearance of the first light-emitting module when it is turned on.

[0018] According to this embodiment, the lens of the first light emitting module is designed to project light reflected by the first plurality of concentrators in a first light beam having a first upper cutoff, the first light beam being formed by images of the reflective surfaces of the first plurality of concentrators formed by the lens, the first plurality of cutoffs being approximately aligned and / or overlapping, and the lens of the first light emitting module is designed to project light reflected by the second plurality of concentrators in a second light beam having a second upper cutoff, the second light beam being formed by images of the reflective surfaces of the second plurality of concentrators formed by the lens, the second plurality of cutoffs being approximately aligned and / or overlapping and vertically offset with respect to the first cutoffs.

[0019] Advantageously, the assembly of the first and second sub-modules is arranged adjacent to one another along a transverse axis of the light emitting device, for example along the transverse axis along which the lens of the first light emitting module extends. Where applicable, the light emitting device may include a portion in which a number of cavities are formed which selectively define either the first or second light concentrator, each cavity being provided with a reflective coating forming a reflective surface of the concentrator it defines.

[0020] Advantageously, the lighting device comprises a control unit designed to selectively control each of the first and second light sources, the control unit being designed to turn on one of the first and second light sources only when the other of the first and second light sources is turned off.

[0021] According to an embodiment of the present invention, the light emitting device includes a second light emitting module capable of emitting a third light beam including a third upper cut-off having at least one flat portion, the first light emitting module and the second light emitting module being designed such that the flat portion of the third upper cut-off is aligned with the second upper cut-off, if applicable, said flat portion is thus located above the first cut-off to form a floodlight. This third light beam can thus be operated simultaneously with either the first or second light beam to provide a low beam type lighting function according to ECE R112 regulation or according to FMVSS 108 or SAE regulations.

[0022] Preferably, the second light emitting module is disposed adjacent to the first light emitting module along a transverse axis of the device.

[0023] Advantageously, the second light emitting module comprises at least one light emitting sub-module comprising a third light source and a third collector comprising a reflective surface designed to collect and reflect the light emitted by said third light source of the second light emitting module, the second light emitting module comprising a lens designed to project the light reflected by the third collector of the second light emitting module, said third light beam being formed by an image of the reflective surface of the third collector formed by said lens. If applicable, the third collector can have a rear end with a setback and said lens can have a focal area located in the vicinity of said rear end of the third collector, so that said upper cut-off of the third light beam is formed by an image of the rear end of the third collector formed by said lens.

[0024] Advantageously, the second light emitting module may include a number of sub-modules arranged adjacently along a transverse axis of the light emitting device, for example along the transverse axis along which the lenses of the first light emitting module and the second light emitting module extend.

[0025] Advantageously, the second light emitting module comprises a third light source, the first light source, the second light source and the third light source being mounted on the same support, in particular a flat support, for example a single printed circuit board.

[0026] Advantageously, the control unit is designed to switch on the third light source simultaneously with either the first or the second light source.

[0027] According to one embodiment of the present invention, a light emitting device comprises a third light emitting module arranged below the first light emitting module, the third submodule being identical to the first submodule of the first light emitting module, a fourth submodule being identical to the second submodule of the first light emitting module, and a lens designed to project the light emitted by the third light emitting module in a fourth light ray having a fourth upper cutoff and to project the light emitted by the fourth light emitting module in a fifth light ray having a fifth upper cutoff, the third submodule and the fourth submodule being arranged such that the fourth upper cutoff is aligned and / or overlapped with the first upper cutoff and the fifth upper cutoff is aligned and / or overlapped with the second upper cutoff.

[0028] Advantageously, the light emitting device comprises a fourth light emitting module capable of emitting a sixth light ray extending at least partially above the second upper cut-off.

[0029] Preferably, the fourth light emitting module is disposed adjacent to the third light emitting module along a transverse axis of the device.

[0030] Advantageously, the fourth light emitting module includes at least one light emitting sub-module comprising a light source and a concentrator including a reflective surface designed to collect and reflect the light emitted by the light source of the fourth light emitting module, the fourth light emitting module including a lens designed to project the light reflected by the concentrator of the fourth light emitting module, and the sixth light ray is formed by an image of the reflective surface of the concentrator formed by the lens.

[0031] If applicable, the concentrator and light source of the third and fourth sub-modules of the third light emitting module are located on the opposite side of the light source and concentrator of the light emitting sub-module of the fourth light emitting module with respect to the optical axis of the lens of the third and fourth light emitting modules.

[0032] Advantageously, the lenses of the first and second light emitting modules, and optionally the lenses of the third and fourth light emitting modules, are formed by different parts of a single lens of the light emitting device.

[0033] The invention will now be described with the aid of a number of examples and the accompanying drawings, which examples are merely illustrative and in no way limit the scope of the invention. [Brief description of the drawings]

[0034] [Figure 1] 1 shows a schematic and partially perspective view of a light-emitting device according to an embodiment of the invention; [Diagram 2] 2 is a schematic and partial rear view of the light emitting device of FIG. 1; [Diagram 3] 2 shows a schematic and partial cross-sectional view of a light-emitting submodule of the device of FIG. 1; [Figure 4] 2 shows isophote lines of light emitted by one of the light-emitting sub-modules of the light-emitting device of FIG. 1; [Diagram 5] 2 shows isophote lines of light emitted by another one of the light-emitting sub-modules of the light-emitting device of FIG. 1; [Figure 6]The isoluminance contours of a low-beam type light beam obtained using the light beams in FIG. [Figure 7] The isoluminance contours of a low-beam type light beam obtained using the light beams in FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0035] In the following description, elements that are identical in terms of structure or function that appear in different figures retain the same reference numbers, unless otherwise specified.

[0036] Fig. 1 shows a perspective view of a light emitting device 1 according to an embodiment of the present invention, and Fig. 2 shows the light emitting device 1 in a rear view.

[0037] The light emitting device 1 includes a first light emitting module 2, a second light emitting module 3, a third light emitting module 4, and a fourth light emitting module 5.

[0038] The first light-emitting module 2 includes two first sub-modules 21 and two second sub-modules 22, which are arranged adjacent to each other and in a staggered manner along the transverse axis Y of the light-emitting device 1. One of the second light-emitting modules 22 is therefore surrounded by two first light-emitting modules 21, and one of the first light-emitting modules 21 is therefore surrounded by two second light-emitting modules 22.

[0039] The first sub-module 21 and the second sub-module 22 each include a first light source 31 and a first collector 41 including a reflective surface for collecting and reflecting light emitted by the light source, and the second sub-module 22 each include a second light source 32 and a second collector 42 including a reflective surface for collecting and reflecting light emitted by the light source. It will be appreciated that the first collector 41 and the second collector 42 each include at least one side edge, at least a portion of which is common to one of the second collector and the first collector 41, respectively.

[0040] The first light emitting module 2 also includes a lens 51 designed to project the light reflected by the first and second concentrators, respectively, in the first and second light beams, respectively.

[0041] FIG. 3 shows a cross-section of the sub-modules 21 and 22 of the first light-emitting module 2 in the vertical plane XZ.

[0042] The first and second collectors 41, 42 have a vertically truncated parabolic or elliptical shape that define cavities in which the first and second light sources 31, 32, respectively, are arranged. The first and second light sources 31, 32 are light-emitting diodes mounted on a single printed circuit board 6 and are therefore able to emit light rays in the same direction Z. The printed circuit board 6 is flat, so that the first and second light sources 31, 32 are located at the same distance from the optical axis XX of the lens 51.

[0043] The light emitting diode 31 is located at the focus of the collector 41, so that the light beam emitted by this light emitting diode 31 is reflected by the reflecting surface of the collector 41 at an angle of less than 25°, preferably less than 10°, depending on the inclination angle of the lens 51 with respect to the optical axis XX. Similarly, the light emitting diode 32 is located at the focus of the collector 42, so that the light beam emitted by this light emitting diode 32 is reflected by the reflecting surface of the collector 42 at an angle of less than 25°, preferably less than 25°, depending on the inclination angle of the lens 51 with respect to the optical axis XX.

[0044] The reflecting surface of each of the collectors 41, 42 collects the light emitted by the respective light emitting diode 31, 32 and reflects it towards a lens 51 designed to project this light onto the road. The first light emitting sub-module 21 thus forms a first light beam F11 and the second light emitting sub-module 22 forms a second light beam F12. Figure 4 represents the projection of the light beam F11 onto a vertical screen located 25 m from the light emitting device 1, a Cartesian reference system is provided. Figure 5 represents the projection of the light beam F12 onto a vertical screen located 25 m from the light emitting device 1, a Cartesian reference system is provided and the first sub-module 21 and the second sub-module 22 are adjusted and unchanged relative to that of Figure 4.

[0045] Thus, each of the first collectors 41 has a rear end 41a, and each of the second collectors 42 has a rear end 42a. It will be seen that the rear ends 41a are located at the same height relative to the optical axis XX of the lens 51, and the rear ends 42a are located at the same height relative to this optical axis XX and are vertically offset relative to the rear ends 41a. These rear ends 42a can be considered to lie on the optical axis XX.

[0046] The lens 51 has a focal region, e.g., a focal line 51a, which passes horizontally through all of the rear ends 41a, 42a of the first collector 41 and the second collector 42 (the line is therefore curved), and passes vertically only through the rear end 42a of the second collector 42, remaining in the vicinity of the rear end 41a of the first collector 41.

[0047] Thus, lens 51 projects an image of the reflective surface of each of concentrators 41, 42 onto the roadway, resulting in light rays F11, F12 each having a first upper cut-off LB11 and a second upper cut-off LB12, which define the illuminated and unilluminated areas formed by the rear ends 41a, 42a of the concentrators. The rear ends 41a, 42a each have a substantially elliptical shape, such that the first and second upper cut-offs LB11, LB12 are substantially flat.

[0048] The rear ends 41a, 42a are adjusted in position relative to one another such that the first cut-offs LB11 of the light beam F11 are aligned with one another and the second cut-offs LB12 of the light beam F12 are aligned with one another as well, but are offset vertically upwards with respect to the first cut-offs LB11. Thus, in the described example, the first upper cut-offs LB11 are each located 0.57° below the horizontal axis HH of the reference system, and the second upper cut-offs LB12 are each approximately superimposed on the horizontal axis HH of the reference system.

[0049] The second light emitting module 3 includes a number of light emitting sub-modules 23 each including a light source 33 , a concentrator 43 and a lens 52 .

[0050] Each submodule 23 is similar to the submodules 21, 22 of the first light-emitting module 2, except for the shape of the collector 43 of this submodule, in particular the shape of the rear end 43a, which is approximately elliptical and located at approximately the same height relative to the optical axis of the lens 52, as the shape of the rear end 42a of the second collector 42 relative to the optical axis of the lens 51. As represented in Figures 6 and 7, the upper cut-off of the light rays resulting from the projection by the lens 52 of the image of each collector of each submodule 4 thus has a flat upper part LB13, which is designed to be aligned with the horizontal axis HH and thus with the second cut-off LB12 of the light ray F12 or to extend above the first cut-off LB11 of the light ray F11.

[0051] In other words, when light sources 31 and 33 are turned on simultaneously and light source 32 is turned off, a combination of light beams as shown in Fig. 6 can provide a low beam type lighting function in accordance with ECE R112 regulations. On the other hand, when light sources 32 and 33 are turned on simultaneously and light source 31 is turned off, a combination of light beams as shown in Fig. 7 can provide a low beam type lighting function in accordance with FMVSS 108 or SAE regulations.

[0052] It will be seen that the second light emitting module 3 is arranged adjacent to the first light emitting module 2 along the transverse axis Y of the device 1, the sub-modules 23 of this second light emitting module 3 are arranged adjacent to each other along the transverse axis Y, and in addition the concentrator 43 is arranged in the same orientation as the concentrators 41, 42. Thus, the light sources 31, 32, 33 may be arranged on a single printed circuit board 6, and the concentrators 41, 42, 43 may be formed by a portion of a light emitting device in which are formed cavities each defining one of these concentrators, each cavity being provided with a reflective coating forming a reflective surface for the concentrator it defines.

[0053] 1 and 2, the third light emitting module 4 is identical in all respects to the first light emitting module 2 and comprises a number of light emitting sub-modules 24, each with a light source 34, a collector 44 and a lens 53, and a number of light emitting sub-modules 25, each with a light source 35, a collector 45 and a lens 53. The third light emitting module 4 is therefore designed to form the same light rays F11, F12 as this first light emitting module 2. It will only be seen that the interchange of the first and second light emitting sub-modules of this third light emitting module 4 is inverted with respect to that of the first light emitting module 2.

[0054] And the fourth light emitting module 5 includes a number of light emitting sub-modules 26, each with a light source 36, a concentrator 46 and a lens 54. The fourth light emitting module 4 is designed to project a segmented or pixelated light beam, which extends at least partially above the second upper cut-off LB12 of the light beam F12.

[0055] It will be seen that the lenses 51 , 52 , 53 , 54 of these light emitting modules 2 , 3 , 4 , 5 are formed by different parts of a single lens 7 of the light emitting device 1 .

[0056] The light emitting device includes a control unit (not depicted) which is capable of receiving an emission command for a given photometric function and which is designed to control the light sources 31, 32, 33, 34, 35, 36 to emit light in response to this command.

[0057] For example, while receiving a command to emit a European low beam type function, the control unit activates the first light source 31, 33, 34, so that the light-emitting device provides the European low beam type function. While receiving a command to emit a US low beam type function, the control unit activates the light sources 32, 33, 35, so that the light-emitting device provides the US low beam type function.

[0058] Also, the control unit activates light sources 31, 33, 34, 36 while receiving a command to emit a high beam type function.

[0059] The above description clearly explains how the invention makes it possible to achieve the objective it has set, namely to obtain a lighting device that provides a low beam type lighting function complying with the requirements of several specific regulations and that is able to maintain the same appearance when lit regardless of its mode of operation.

[0060] In any case, the invention is not limited to the embodiments specifically described herein, but in particular extends to all equivalent means and any combination of these means that is technically feasible. For example, it is possible to imagine using optical devices of different types than those described, in particular any optical device that includes one or a combination of the following optical elements: reflectors, lenses, collimators, light guides, shielding plates. It is also possible to imagine other shapes and / or other sizes and / or other alignments of the light beam.

Claims

1. The first light emitting module (2) includes a first sub-module (21) with a first light source (31) and a first collector (41) including a reflective surface designed to collect and reflect the light emitted by the first light source, the first module includes a lens (51) designed to project the light reflected by the first collector in a first light beam (F11) having a first upper cutoff (LB11), the first light beam being formed by an image of the reflective surface of the first collector formed by the lens, the first light emitting module includes a second light source (32) and a first collector (41) including a reflective surface designed to collect and reflect the light emitted by the second light source, the first module includes a lens (51) designed to project the light reflected by the first collector in a first light beam (F11) having a first upper cutoff (LB11), the first light beam being formed by an image of the reflective surface of the first collector formed by the lens, and a second concentrator (42) including a reflective surface designed to collect and reflect light reflected by the second concentrator, the lens being designed to project the light reflected by the second concentrator in a second light beam (F12) having a second upper cutoff (LB12), the second light beam being formed by an image of the reflective surface of the second concentrator formed by the lens, the first sub-module and the second sub-module being characterized in that the first upper cutoff is offset vertically with respect to the second upper cutoff.

2. 2. The light emitting device (1) of claim 1, wherein each of the first collector (41) and the second collector (42) has a rear end (41a, 42a), the lens (51) is designed such that the first light ray (F11) has the upper cutoff (LB11) formed by the image of the rear end of the first collector formed by the lens, and the second light ray (F12) has the upper cutoff (LB12) formed by the image of the rear end of the second collector formed by the lens, and the rear end of the first collector is vertically offset with respect to the rear end of the second collector.

3. 3. The light emitting device (1) according to claim 2, wherein the first light source (31) and the second light source (32) are mounted on the same support (6).

4. 4. The light emitting device (1) according to claim 2 or 3, wherein the lens (51) has a focal region (51a) located near the rear end (42a) of the second collector (42).

5. The light emitting device (1) according to any one of claims 1 to 4, wherein the first light emitting module (2) comprises a plurality of first submodules (21), each comprising a first light source (31) and a first collector (41) including a reflective surface designed to collect and reflect the light emitted by the first light source, and the first light emitting module comprises a plurality of second submodules (22), each comprising a second light source (32) and a second collector (42) including a reflective surface designed to collect and reflect the light emitted by the second light source, and the first submodules and the second submodules are arranged adjacent to each other in a staggered manner.

6. The light-emitting device (1) according to any one of claims 1 to 5, further comprising a control unit designed to selectively control each of the first light source (31) and the second light source (32), the control unit being designed to turn on one of the first light source and the second light source only when the other of the first light source and the second light source is turned off.

7. A light emitting device (1) according to any one of claims 1 to 6, characterized in that it comprises a second light emitting module (3) capable of emitting a third light beam comprising a third upper cut-off (LB13) having at least one flat portion, the first and second light emitting modules (2, 3) being designed such that the flat portion of the third upper cut-off is aligned with the second upper cut-off (LB12).

8. The lighting device (1) according to claim 7, wherein the second lighting module includes a third light source (33), and the first light source (31), the second light source (32) and the third light source (33) are mounted on the same support (6).

9. 9. The light emitting device (1) according to claim 8, comprising a third light emitting module (4) comprising a third submodule (24) arranged below the first light emitting module (2) and identical to the first submodule (21) of the first light emitting module, a fourth submodule (25) identical to the second submodule (22) of the first light emitting module, and a lens (53) designed to project light emitted by the third light emitting module in a fourth light ray having a fourth upper cut-off and to project light emitted by the fourth light emitting module in a fifth light ray having a fifth upper cut-off, wherein the third submodule and the fourth submodule are arranged such that the fourth upper cut-off is aligned and / or overlaps with the first upper cut-off (LB11) and the fifth upper cut-off is aligned and / or overlaps with the second upper cut-off (LB12).

10. A light emitting device (1) according to any one of the preceding claims, characterized in that it comprises a fourth light emitting module (5) capable of emitting a sixth light ray which extends at least partially above the second upper cut-off (LB12).

Images