EP4264122A1

EP4264122A1 - Motor-vehicle lighting module

Info

Publication number: EP4264122A1
Application number: EP21840546.2A
Authority: EP
Inventors: Maxime LAMINETTE; Jean-François Doha; Francisco Ruiz; Clément OLCHEWSKY; Ibrahima Ndiaye
Original assignee: Valeo Vision SAS
Current assignee: Valeo Vision SAS
Priority date: 2020-12-18
Filing date: 2021-12-16
Publication date: 2023-10-25
Also published as: WO2022129426A1; FR3118124B1; US20240102626A1; CN116547475A; FR3118124A1

Abstract

The invention relates to a motor-vehicle lighting module (2), comprising a first lighting sub-module (5) comprising a light source (6.3) able to form a first light beam; a second lighting sub-module (10) able to form a second light beam; a second projection lens (12) for projecting the second light beam, contiguous to a first projection lens (8); and an optical device (18) configured to redirect to the second projection lens (12) light rays that originate directly from the light source (6.3) of the first lighting sub-module (5) and that pass in front of the reflective surface (6.2) of the first lighting module (5), so as to make said second projection lens (12) appear illuminated even when the second lighting sub-module (10) is turned off.

Description

DESCRIPTION

TITLE: MOTOR VEHICLE LIGHTING MODULE

Technical area

The invention relates to the field of lighting, in particular lighting for motor vehicles. The invention relates in particular to a lighting module intended to be assembled in a motor vehicle headlamp.

Prior technique

[0002] It is generally known to produce a cut-off lighting beam using one or more bending light modules. Such a light module conventionally comprises a collector with a reflective surface of revolution with an elliptical profile, in the shape of a cap in a half-space delimited by a horizontal plane. An essentially point-like light source, of the light-emitting diode type, is located at a first focal point of the reflecting surface and illuminates in the half-space in the direction of said surface. The rays are thus reflected in a convergent manner towards a second focal point of the reflecting surface. Another, generally flat, reflective surface with a cut-off edge at the second focal point provides upward reflection of rays which do not pass precisely through the second focal point, these rays then being refracted by a thick lens towards the bottom of the beam lighting. This reflective surface is commonly referred to as a "bender" in that it "bends" up the projection lens the rays that would otherwise form a top portion of the illumination beam. Such a light module has the disadvantage of requiring significant precision in the positioning of the folder and the cutting edge. Also, the projection lens must be a thick lens due to its short focal length, which increases its weight and complicates its production, such as shrinkage defects in particular. In addition, the collector has a certain height and, therefore, a certain overall height.

[0003] The published patent document WO 2020/025171 A1 discloses a light module, in particular for a motor vehicle, comprising a collector with a reflecting surface collecting and reflecting the light rays emitted by a light source into a light beam, similar to a light module at folder. The light module also includes a projection optical system, such as a lens, specifically configured to project the light beam in question by forming an image of the reflective surface of the collector. To this end, the projection optical system has a focal point situated on the reflecting surface, for example at a rear edge of the latter, so as to correctly image said edge and form a clear cut in the projected light beam. This type of light module has the advantages of compactness, in particular in height, and simplicity of construction. They can be combined to form different light beams adding together.

[0004] The published patent document FR 3 093 789 A1 discloses a motor vehicle headlamp lighting module incorporating the technology of the previous document by combining a first cut-off lighting sub-module ensuring a lighting function of the type code (in English “low-beam”) with a second uncut lighting sub-module supplementing the light beam with cut-off to provide a lighting function of the road type (in English “high-beam”). This so-called bi-function module has the disadvantage that the lens or projection lens portion associated with the second lighting sub-module, without cut-off, is not illuminated during the dipped type lighting function. This absence of lighting can cause a problem with the general appearance of the lighting module.

Disclosure of Invention

The object of the invention is to overcome at least one of the drawbacks of the aforementioned state of the art. More particularly, the aim of the invention is to solve the problem of the unlit aspect of part of the projection lens of a dual-function lighting module.

[0006] The subject of the invention is a lighting module for a motor vehicle, comprising a first lighting sub-module configured to produce a first light beam and comprising: a sub-assembly with a primary light source and a primary collector with a reflective surface capable of reflecting light rays emitted by said primary light source into a first primary reflected light beam; a first projection lens configured to project at least a majority of said primary reflected light beam into a primary projected light beam at least partially forming said first light beam.

[0007] The lighting module further comprises a second lighting sub-module configured to produce a second light beam and comprising a second lens for projecting the second light beam, adjoining the first projection lens.

[0008]According to the invention, the lighting module further comprises an optical device configured to reflect towards the second projection lens light rays coming directly from the primary light source of the first lighting sub-module and passing forward of the reflective surface of the primary collector of the first lighting sub-module so as to give said second projection lens an illuminated appearance while the second lighting sub-module is off.

[0009] By way of example, the optical device is arranged between the sub-assembly and the first projection lens.

[00010] According to the invention, the first beam can be a beam with a higher cut-off with a horizontal portion, in particular a code beam.

[00011] According to the invention, the second beam can be a lower cut-off beam with a horizontal portion, in particular a complementary high beam. The characteristics of this paragraph can be combined with those of the previous one and in this case, the second beam forms with the dipped beam a main beam, the lower cutoff coinciding with the upper cutoff. The lighting module is thus a dipped/high-beam dual-function module.

[00012] According to one embodiment of the invention, the second lighting sub-module may comprise a light source, a collector with a reflective surface able to reflect light rays emitted by said light source into a second reflected light beam . The second projection lens is configured to project at least a majority of said second reflected light beam into a second projected light beam forming the second light beam. In this case, the optical device is arranged between, on the one hand, the light source and the collector and, on the other hand, the second projection lens. [00013] In another embodiment, the second sub-module may comprise a light source; an optical element capable of deflecting at least the majority of the rays emitted by the light source of the second lighting sub-module towards the second projection lens. Said optical element can comprise one or more lenses, one or more reflectors, one or more light guides or a combination of these possibilities. In this case, the optical device is arranged between the optical element and the second projection lens. [00014] According to the invention, the light source(s) may be light-emitting diodes, also called LEDs.

According to one embodiment of the invention, the first lighting sub-module and the second lighting sub-module can be arranged on either side of a dividing plane, the rays returned by the optical device passing through said dividing plane

[00016] Here, the dividing plane divides the space in the lighting module into a first space dedicated to the first lighting sub-module and a second space dedicated to the second lighting sub-module.

[00017] According to one embodiment of the invention, the optical device may comprise a first reflection surface configured to reflect the light rays coming directly from the primary light source of the first lighting sub-module into reflected light rays, and a second reflecting surface configured to reflect said reflected light rays toward the second projection lens.

According to one embodiment of the invention, the first reflection surface may have a parabolic or elliptical profile so that the light rays reflected by said first reflection surface converge. The parabolic or elliptical profile can be in a longitudinal plane, comprising the optical axis of the lighting module, and/or in a transverse plane, perpendicular to said optical axis. The convergence of the rays reflected by the first reflection surface also makes it possible to concentrate the rays as they pass through the dividing plane, thus limiting the space necessary for their passage.

[00019] According to another embodiment of the invention, the first reflection surface may have a flat surface or other shapes adapted to reflect the light rays coming directly from the primary light source of the first lighting sub-module towards the second reflecting surface. According to one embodiment of the invention, the lighting module comprises a support for the first lighting sub-module and/or the second lighting sub-module, extending along the dividing plane and comprising an orifice suitable for the rays reflected by the first reflection surface to pass through.

[00021] According to one embodiment of the invention, the second reflection surface may have a rough surface structure. In other words, the second reflection surface has reliefs on its surface.

According to one embodiment of the invention, the second reflection surface has regular reliefs.

[00023] The second reflection surface can be configured to reflect the light rays reflected from the first reflection surface in a diffusing manner and to direct them towards the second projection lens.

According to one embodiment of the invention, the first reflection surface is arranged on the same side of the divider plane as the first lighting sub-module, and the second reflection surface is arranged on the same side of the divider plane than the second lighting sub-module.

[00025] According to one embodiment of the invention, the lighting module may also comprise a casing housing the first lighting sub-module, the second lighting sub-module, the first reflection surface and/or the second reflecting surface being formed on or supported by said housing.

[00026] Advantageously, the second reflection surface can be formed directly on the housing and advantageously is raised on average by at least 1 mm, more advantageously at least 2 mm, more advantageously still at least 3 mm.

[00027] According to one embodiment of the invention, the first projection lens may have a focal zone located on the reflective surface of the primary collector, at the rear of the primary light source of said first lighting sub-module. The projection lens is configured to image a part of said reflective surface located, in a general direction of propagation of the light rays reflected in the first lighting sub-module, behind the primary light source.

[00028] Advantageously, the focal zone can be located at a rear edge of said reflective surface. [00029] In general, this focal zone can be a focal point, also called a focal point, or can be a focal line, also called a line of focal points. According to one embodiment of the invention, the sub-assembly is a first sub-assembly, the first lighting sub-module further comprising a second sub-assembly with: a secondary light source; a secondary collector with a reflective surface capable of reflecting light rays emitted by said secondary light source into a secondary reflected light beam.

[00031] In addition, the second sub-assembly may be set back towards the rear, in a general direction of propagation of the rays, with respect to the first sub-assembly. In other words, the second subset is placed upstream of the first subset along the general direction of propagation of the rays.

Furthermore, the first projection lens can be configured to project at least the majority of said secondary reflected light beam into a secondary projected light beam. In this case, the primary projected light beam and the secondary projected light beam together form the first light beam.

[00033] Here, the first subset is still called the first category subset while the second subset, set back from the first subset, is still called the second category subset.

[00034] Here, "the rays" in "the general direction of propagation of the rays" are rays which participate in the formation of the first light beam and the second light beam. Here, unless otherwise indicated, the general direction of propagation of the rays in the first lighting sub-module is parallel to an optical axis of said first lighting sub-module. Similarly, the general direction of propagation of the rays in the second lighting sub-module is parallel to an optical axis of said second lighting sub-module.

Advantageously, the optical axis of the first lighting sub-module can be parallel to the optical axis of the second lighting sub-module.

[00035] According to one embodiment of the invention, the optical device can be configured to return to the second projection lens also light rays coming directly from the secondary light source and passing in front of the reflecting surface of said secondary collector.

According to one embodiment of the invention, the optical device may comprise a third reflection surface configured to reflect the light rays coming directly from the secondary light source of the second subassembly towards the second reflection surface, said second reflecting surface being configured to also reflect the rays reflected by the third reflecting surface towards the second projection lens.

[00037] The third reflection surface is associated with the second sub-assembly of the first lighting sub-module.

[00038] Advantageously, the third reflection surface associated with the second sub-assembly can be set back towards the rear, in the general direction of propagation of the rays, with respect to the first reflection surface. [00039] The third reflection surface can be integrated into the secondary collector. In this case, the third reflective surface is arranged after the reflective surface of the secondary collector, but oriented differently with respect to said reflective surface. The third reflective surface may also have a different profile from the reflective surface.

[00040] Advantageously, the third reflection surface can be arranged on the same side of the dividing plane as the first lighting sub-module.

[00041] Advantageously, the lighting module comprises a common support for the first and second sub-assemblies of the first lighting sub-module, extending along the dividing plane and comprising a first orifice capable of being crossed by the reflected rays by the first reflection surface and a second orifice suitable for the rays reflected by the third reflection surface to pass through, set back towards the rear, in the general direction of propagation of the rays, with respect to the first orifice.

[00042] The measures of the invention are advantageous in that they make it possible to ensure lighting of the second projection lens when the second lighting sub-module is off, and this without additional or auxiliary light source. The illumination of the second projection lens is ensured with otherwise lost light rays from the first illumination sub-module. The optical device is also of simple construction since it does not involve a small number of reflection surfaces, in this case two or three reflection surfaces. [00043] The invention also relates to a motor vehicle headlamp comprising a lighting module according to the invention.

[00044] In particular, according to the invention, the lighting module is a unitary device, the components of which, in particular the lighting sub-modules and the lens, are assembled together. In other words, these components are assembled together independently of the fixings of the lighting module intended to fix the latter in a headlamp.

[00045] The first and second lenses can be formed in one piece. The module has more of a unitary appearance.

[00046] The first and second lenses can each have a different focal length. The invention is particularly advantageous in such a case.

Brief description of the drawings

[00047] [Fig. 1] is a schematic representation in longitudinal section, and functional, of a lighting module according to a first embodiment of the invention;

[00048] [Fig. 2] is a perspective view of the cut-off lighting sub-module and of the first reflection surface of the light-returning optical device of the lighting module of FIG. 1;

[00049] [Fig. 3] is a perspective view of the second reflection surface of the light-reflecting optical device of the lighting module of FIG. 1;

[00050] [Fig. 4] is a perspective view of a lighting module according to a second embodiment of the invention.

[00051] [Fig. 5] is a perspective view of a lighting module according to a third embodiment of the invention.

detailed description

[00052] In the following description, the notions "front" and "rear" are understood with respect to a main direction of propagation of the light along the optical axis of the first lighting sub-module and the axis optics of the second lighting sub-module. [00053] Figure 1 is a longitudinal sectional view, schematic and functional of a lighting module for a motor vehicle, according to a first embodiment of the invention.

[00054] The lighting module 2 comprises a housing 4 shown schematically, it being understood that it may have substantially more complex shapes and be made up of several parts assembled together. [00055] The lighting module 2 comprises a first lighting sub-module 5 able to form a first light beam with horizontal cut-off. The first lighting sub-module 5 comprises a sub-assembly 6 comprising a primary collector 6.1 provided with a reflective surface 6.2 capable of collecting and reflecting the light rays emitted by a primary light source 6.3. The latter is advantageously of the semiconductor type, in this case an electroluminescence diode. It essentially illuminates in a space delimited by a plane thereof, in a main direction perpendicular to said plane and directed towards the primary collector 6.1. The primary collector 6.1 and more particularly the reflective surface 6.2 have a hollow shape, similar to that of a half-shell. The reflective surface 6.2 is configured to collect a major part of the light rays emitted by the primary light source 6.3 and at least partially form a first cut-off light beam or all of said first beam in the direction of a first projection lens 8 forming part of the first lighting sub-module 5.

The first light beam, emitted by the first projection lens 8, performs a regulatory automotive lighting function of the code type, also referred to as a "low beam" in English. This function includes a horizontal cut.

The lighting module 2 further comprises a second lighting sub-module 10 able to form a second light beam.

[00058] Similar to the first lighting sub-module 5, the second lighting sub-module 10 comprises a collector 10.1 provided with a reflective surface 10.2 and a light source 10.3. Still similarly to the first lighting sub-module 5, the reflecting surface 10.2 is configured to collect and reflect the light rays emitted by the light source 10.3 and form the second light beam in the direction of a second projection lens 12 forming part of the second lighting sub-module 10. The collector 10.1 and more particularly the reflective surface 10.2 has a hollow shape, similar to that of a half-shell, and the light source 10.3 essentially illuminates in a space delimited by a plane of the latter, in a main direction perpendicular to said plane and directed towards the collector 10.1.

Of course, the second lighting sub-module 10 can have a different structure from that of the first lighting sub-module 5. For example, the second lighting sub-module can comprise a plurality of light sources. light, a plurality of light guides, each guide being associated with a light source so as to propagate the rays emitted by said source in the direction of the second projection lens. In this example, the second lighting sub-module can further comprise one or more additional lenses arranged between the guides and the projection lens. The additional lens or lenses may be configured to correct optical aberrations, such as field aberration.

[00060] The second light beam, emitted by the second projection lens 12, supplements the first light beam, emitted by the first projection lens 8 to ensure a regulatory automotive lighting function of the road type, also referred to as "high beam". in English. In another example, the second light beam on its own can perform the statutory automotive lighting function of the road type.

[00061] It should be noted that the first and second lighting sub-modules 5 and 10 are opposite with respect to a dividing plane. In other words, the first and second lighting sub-modules 5 and 10 are arranged on either side of the dividing plane and oriented in opposite manner, namely that the main lighting directions of their light sources 6.3 and 10.3 are opposite.

Advantageously, the light sources 6.3 and 10.3 in question can be arranged on a common support 16. The latter extends in the dividing plane and advantageously forms a plate. In Figure 1, the common support 16 is shown schematically by a line, it being understood, however, that it has a non-zero thickness.

[00062] Of course, the support 16 can serve as a support only for the first lighting sub-module 5. In this case, another support distinct from the support 16 is assigned to the second lighting sub-module 10. The reflective surfaces 6.2 and 10.2 advantageously have a profile of the elliptical or parabolic type. One or each of them is advantageously a surface of revolution around an axis parallel to the optical axis of the corresponding lighting module. Alternatively, it may be a free-form surface or a swept surface or an asymmetrical surface. It can also include several sectors. The expression "parabolic type" generally applies to reflective surfaces with a single focal point, that is to say a zone of convergence of the light rays such that the light rays emitted by a light source placed at the level of this convergence zone are projected at a great distance after reflection on the surface. Projected at a great distance means that these light rays do not converge on an area located at least 10 times the dimensions of the reflecting surface.

In other words, the reflected rays do not converge towards a convergence zone or, if they do converge, this convergence zone is located at a distance greater than or equal to 10 times the dimensions of the reflecting surface. A parabolic-type surface may therefore have parabolic portions or not. A collector having such a surface is generally used alone to create a light beam. Alternatively it can be used as a projection surface associated with an elliptical type collector. In this case, the light source of the parabolic-type collector is the convergence zone of the rays reflected by the elliptical-type collector.

[00064] Each of the light sources 6.3 and 10.3 is arranged at a focal point of the corresponding reflective surface 6.2 and 10.2 so that its rays are collected and reflected along the optical axis of the corresponding lighting module. At least some of these reflected rays have angles of inclination a, in a vertical plane, with respect to said axis which are less than or equal to 25°, preferably less than or equal to 10°, so as to be under the conditions so-called Gaussian, allowing to obtain a stigma, that is to say a sharpness of the projected image. These are advantageously the rays reflected by the rear part of the reflecting surface 6.2 and 10.2.

The first projection lens 8 comprises a focus 8.1 located on a portion of the reflective surface 6.2 located between the light source 6.3 and the rear edge 6.2.1 of said reflective surface 6.2. In this case, focus 8.1 is located at the rear edge 6.2.1 of reflective surface 6.2. Such positioning of the focus makes it possible to image the rear portion of the illuminated reflective surface, in this case its rear edge 6.2.1, and thus to form a clear cut corresponding to said edge. As illustrated by the path of the light rays, the projected image of the illuminated reflective surface is inverted, meaning then that the trailing edge forms an upper horizontal cut-off of the first light beam.

The second projection lens 12 comprises a focus 12.1 advantageously located on the reflecting surface 10.2, at a position between the front 12.2.2 and rear 12.2.1 edges of said reflecting surface 6.2. The home

12.1 can be located on a portion of the reflective surface 10.2 located between the light source 10.3 and the rear edge 10.2.1 of said reflective surface 10.2. [00067] The first and second projection lenses 8 and 12 are contiguous at a junction axis 14. two projection lenses. Alternatively, they can be related to each other. They may also have an offset along a longitudinal axis, that is to say an axis parallel to the optical axis of each of the first and second lighting sub-modules.

[00068] Still with reference to FIG. 1, the lighting module 2 comprises an optical device 18 configured to return otherwise lost rays from the first lighting sub-module 5 to the second projection lens 12. These otherwise lost rays come directly from the light source 6.3 and pass in front of the front edge 6.2.2 of the reflective surface 6.2 on the collector 6.1; they are therefore not reflected by the reflective surface 6.2. The optical device 18 comprises a first reflection surface 18.1 disposed at the front of the collector

6.1 so as to collect at least some of the rays coming directly from the light source 6.3 and passing over the collector 6.2. This first reflection surface 18.1 is thus located between the collector 6.1 and the first projection lens 8. It is configured to reflect the rays in question in the direction of the opposite side of the dividing plane materialized in FIG. 1 by the junction axis 14 and the common support 16, towards a second reflection surface 18.2 of the optical device 18. This is then configured to reflect the rays in question towards the second projection lens 12. The optical device 18 thus makes it possible to illuminate the second projection lens 12 with light produced by the subassembly 6 and otherwise lost. This means that when only the first lighting sub-module 5 is active, that is to say when the sub-assembly 6 is on, this otherwise lost light will illuminate the second projection lens 12 and thus ensure a illuminated to all of the first and second projection lenses 8 and 12. It is understood that the light power of the illumination of the second projection lens 12 by the optical device 18 is weaker than the illumination of said second lens of projection 12 by the second lighting sub-module 10. This difference in lighting power is not directly perceptible to an observer located in front of the lighting module. Also, this lighting of the second projection lens 12 by the optical device 18 is weak enough not to disturb the second light beam when the second lighting sub-module is active, at the same time as the first lighting sub-module. lighting.

[00070] The first reflection surface is advantageously of parabolic or elliptical profile, in a longitudinal plane as well as in a transverse plane (perpendicular to the optical axis), so that the reflected rays converge at the level of the dividing plane to then diverge before meeting the second reflection surface 18.2. Such a convergence is advantageous when the common support 16 extends longitudinally to the point where the reflected rays pass between the first and second reflection surfaces 18.1 and 18.2. The spokes can then pass in front of a front edge of the common support 16 or through an orifice 16.1 made in said common support.

[00071] The first reflection surface 18.1 can be formed directly on the collector 6.1 by means of an extension thereof, directly on the housing 4 or even on a specific part fixed to the housing 4 and/or to the collector 6.1.

[00072] The second reflection surface 18.2 can present a rectilinear or almost rectilinear profile, in a longitudinal plane and/or in a transverse plane, so as to reflect the rays towards a major part of the entry face of the second lens. projection 12, advantageously more than 80% of said entry face.

[00073] The second reflection surface 18.2 can be formed directly on the housing 4 or even on a specific part fixed to the housing 4. The second surface reflection 18.2 can be formed directly on a wall of the box 4 and covered with a reflective coating, in which case said surface is advantageously raised relative to said wall so as to facilitate the positioning of a protective mask during the deposition of the coating reflective. The elevation can be on average at least 1, 2 or 3mm. Raising the second reflection surface also makes it possible to obtain an optimum orientation of said surface.

[00074] Figure 2 is a perspective view of the cut-off lighting module and of the first reflection surface of the light-returning optical device of the lighting module of Figure 1.

[00075] Figure 2 materializes a non-zero thickness of the common support 16. It also illustrates the path of four extreme light rays emitted by the light source 6.3 passing in front of the front edge 6.2.2 of the reflecting surface 6.2 of the sub-assembly 6 of the first lighting sub-module 5 and meeting the first reflection surface 18.1 of the optical device 18. The parabolic or elliptical profiles of the reflecting surface 6.2 of the collector 6.1 and of the first reflection surface 18.1 of the optical device 18 are visible .

[00076] Figure 3 is a perspective view of an example of the second reflection surface of the light-returning optical device of the lighting module of Figure 1.

The second reflection surface 18.2 may have a rough surface structure. Here, the second reflection surface 18.2 can comprise a series of reliefs 18.2.1 arranged in the form of a network 18.2.2. These reliefs 18.2.1 may in particular form steps or pads and the network 18.2.2 may in particular be in the form of lines or grids, respectively. The reliefs 18.2.1 and their network 18.2.2 can be configured to reflect the light received, mainly towards the second projection lens 12, and this in a homogeneous manner. To this end, the reliefs 18.2.1 and their network 18.2.2 can ensure a function of diffusing the light received, however in a manner directed towards the second projection lens 12.

[00078] Figure 4 is a perspective view of one of the lighting module according to a second embodiment of the invention. The reference signs of the first embodiment are used to designate the identical or corresponding elements, these numbers being however increased by 100. It is moreover made reference to the description of these elements in the context of the first embodiment.

[00079] The lighting module 102 according to the second embodiment of the invention differs from the lighting module of the first embodiment essentially in that the first lighting sub-module comprises several sub-assemblies arranged side -to the side. The first lighting sub-module 105 indeed comprises a first sub-assembly 106 similar to the sub-assembly 6 of the first lighting sub-module 5 of the first embodiment. The first lighting sub-module 105 further comprises a second sub-assembly 106′ similar, or even identical, to the first sub-assembly 106, placed next to said first sub-assembly 106. The first lighting sub-module lighting can also include additional sub-assemblies, such as a third sub-assembly 106" and a fifth sub-assembly 106'", all arranged side by side on the same side of the dividing plane materialized by the common support 116.

[00080] The lighting module further comprises a second lighting sub-module 110, not visible, similar to the second lighting sub-module 10 of the first embodiment, located opposite the dividing plane materialized by the common support 116.

[00081] The reflective surfaces 106.2, 106'.2, 106".2 and 106'".2 of said sub-assemblies 106, 106', 106" and 106'" are advantageously adjacent to each other so that the collectors (not shown) on which they are formed can be integral. Each of the lighting modules 106, 106', 106” and 106'” produces a cut-off light beam, these beams combining to form a regulatory lighting function of the dipped type. To this end, one of the lighting modules 106, 106', 106" and 106'" can form a wide beam with a straight cut, another a narrow beam with a cut with a jump (commonly referred to by the English term "kink"). ), and another a narrow beam with a straight cut.

[00082] The optical device 118 in this case comprises, in addition to the first reflection surface 118.1, a third, fourth and fifth reflection surface 118'.1, 118".1 and 118'".1, namely one per sub -set 106, 106', 106”and 106'”. Also the common support 116 may include an orifice 116.1, 116.T, 116.1” and 116.1'” for each of the sub-assemblies 106, 106', 106” and 106'”. The second reflection surface 118.2 of the optical device 118 can be common to the lighting modules 106, 106', 106” and 106'”.

[00083] The first projection lens 108 is common to the sub-assemblies 106, 106', 106" and 106'". The second projection lens 112 directly adjacent to the first projection lens 108 is then illuminated over its entire transverse extent when only the first, third, fourth and fifth subassemblies 106, 106', 106" and 106'" are active then that the second lighting sub-module 110 is inactive.

[00084] It should be noted that the second lighting sub-module 110 can comprise several sub-assemblies arranged side-by-side, on the opposite side of the dividing plane materialized by the common support.

[00085] Figure 5 is a perspective view of a lighting module according to a third embodiment of the invention. The reference signs of the second embodiment are used to designate identical or corresponding elements, these numbers being however increased by 100. Reference is also made to the description of these elements within the framework of the second embodiment.

The lighting module 202 according to the third embodiment of the invention differs from the lighting module of the first embodiment essentially in that the first lighting sub-module 205 comprises several sub-assemblies, similarly to the second embodiment. The first lighting sub-module 205 indeed comprises a first sub-assembly 206 similar to the sub-assembly 6 of the first embodiment. The first lighting sub-module 205 further comprises a second lighting sub-module 206′ similar, or even identical, to the first sub-assembly 206, placed next to said first sub-assembly 206, and a third -set 206″ similar, or even identical, to the first subset 206, placed next to the second subset 206′ on the right of figure 5.

[00087] The first lighting sub-module 205 further comprises a fourth and a fifth sub-assembly 206'" and 206"" arranged on either side, respectively, of the central block of the first, second and fourth sub-assemblies 206, 206” and 206', and recessed along an optical axis of the first lighting sub-module with respect to said central block. The first, second and third subsets 206, 206', 206” are also called the subsets of first category. The fourth and fifth subsets 206”' and 206”” are still called the second category subsets.

[00088] Here, similarly to the first category subassemblies, each second category subassembly 206"' and 206"" comprises a secondary light source 206'".3, 206"".3 and a secondary collector with a reflective surface 206'”.2, 206””.2 capable of reflecting light rays emitted by said secondary light source into a secondary reflected light beam. In this case, the first projection lens 208 is configured to project at least the majority of said secondary reflected light beam into a secondary projected light beam. Here, the secondary projected light beam is a cut, narrow and jumping light beam (commonly referred to by the English term "kink"). [00089] The reflective surfaces 206.2, 206′.2 and 206″2 of the sub-assemblies 206, 206′ and 206″ are advantageously adjacent to each other so that the collectors (not shown) on which they are formed can be in one piece. Each of the 206, 206' and 206” sub-assemblies in the center block produce a cut-off and spread light beam, while the recessed 206'” and 206”” sub-assemblies produce the cut-off, narrow and jog light beams combining each other. All of these beams combine to form a code-type regulatory lighting function.

[00090] Similarly to the previous embodiment, the lighting module 202 comprises a second lighting sub-module 210, not visible, similar to the second lighting sub-module 10 of the first embodiment, located at the opposite of the dividing plane materialized by the common support 216.

[00091] The optical device 218 comprises in this case in addition to the first reflection surface 218.1, a third, fourth and fifth reflection surface 218”.1, 218'”.1 and 218””.1, namely one by sub-assembly 206, 206” and 206'” and 206””. Also the common support 216 can include an orifice 216.1, 216.1”, 216. T” and 216””.1 for each of the subassemblies 206, 206”, 206'” and 206””. The second reflection surface 218.2 of the optical device 218 can be common to the subassemblies 206, 206”, 206'” and 206””.

[00092] It can be observed that among the central block of the sub-assemblies 206, 206' and 206”, only the side sub-assemblies 206 and 206” are associated with a reflection surface 218.1, 218”.1 of the optical device 218 , meaning that the modulus central lighting 206 'does not participate in the lighting of the second projection lens.

[00093] It can also be observed that the fourth and second sub-assemblies 206'" and 206"" are set back towards the rear, in a general direction of propagation of the light rays along the optical axis of the first sub-module d 'lighting, relative to the central block of sub-assemblies 206, 206' and 206”. For this purpose, the reflection surfaces 218′″1 and 218″″1 of the optical device 218, associated with these sub-assemblies 206′″ and 206″″, are also recessed with respect to the reflection surfaces 218.1 and 218”.1 associated with the central block. This removal of the reflective surfaces 218'''.1 and 218"''1 allows the otherwise lost and downwardly reflected rays to be reflected by the second reflective surface 218.2 at more favorable angles to illuminate the second projection lens. 212. This withdrawal brings together the reflection surfaces 218'”.1 and 218””.1 of the subsets 206'” and 206”” in order to collect more rays coming directly from the light source of these subsets. Thus, the illuminated appearance of the second projection lens is further improved.

[00094] Finally, such an arrangement also makes it possible to retain a certain compactness of the lighting module depending on its height. Indeed, the fact of providing a setback of the reflection surfaces 218'''.1 and 218''.1 makes it possible to position them at a reduced height, close to the corresponding sub-assemblies 206''' and 206'''.

Claims

[Claim 1.] A lighting module (2; 102; 202) for a motor vehicle, comprising: a first lighting sub-module (5; 105; 205) configured to produce a first light beam and comprising:

■ a sub-assembly (6; 106; 206) with a primary light source (6.3; 106.3; 206.3), and a primary collector (6.1) with a reflecting surface (6.2; 106.2; 206.2) able to reflect emitted light rays by said primary light source (6.3; 106.3; 206.3) into a primary reflected light beam; and

■ a first projection lens (8; 108; 208) configured to project at least the majority of said primary reflected light beam into a primary projected light beam at least partially forming said first light beam; a second lighting sub-module (10; 110; 210) configured to produce a second light beam and comprising a second projection lens (12; 112; 212) of the second light beam, adjacent to the first projection lens (8 ;108;208); characterized in that said module (2; 102) further comprises an optical device (18; 118; 218) configured to reflect towards the second projection lens (12; 112; 212) light rays coming directly from the source primary light (6.3; 106.3; 206.3) of the first lighting sub-module (5; 105, 205) and passing in front of the reflecting surface (6.2, 106.2; 206.2) of the first lighting sub-module ( 6; 106, 206) so as to give said second projection lens (12; 112; 212) an illuminated appearance while the second lighting sub-module (10; 110; 210) is off.

[Claim 2.] Lighting module (2; 102; 202) according to claim 1, wherein the first lighting sub-module (5; 105; 205) and the second lighting sub-module (10; 110; 210) are arranged on either side of a splitter plane, the rays returned by the optical device (18; 118; 218) passing through said splitter plane. [Claim 3.] Lighting module (2; 102; 202) according to one of claims 1 and 2, in which the optical device (18; 118; 218) comprises a first reflection surface (18.1; 118.1; 218.1 ) configured to reflect the light rays coming directly from the primary light source (6.3; 106.3, 206.3) of the first lighting sub-module (6; 106, 206) into reflected light rays, and a second reflection surface (18.2; 118.2; 218.2) configured to reflect said reflected light rays to the second projection lens (12; 112; 212).

[Claim 4.] Lighting module (2; 102, 202) according to claims 2 and 3, comprising a support (16; 116, 216) of the first lighting sub-module and/or of the second lighting sub-module lighting (5, 10; 105, 110; 205, 210), extending along the dividing plane and comprising an orifice (16.1; 116.1; 216.1) capable of being crossed by the rays reflected by the first reflection surface (18.1 ; 118.1 ; 218.1 ).

[Claim 5.] Lighting module (2; 102; 202) according to one of Claims 3 and 4, in which the second reflecting surface (18.2; 118.2; 218.2) has a rough surface structure.

[Claim 6.] Lighting module (2; 102; 202) according to one of claims 3 to 5, in which the second reflection surface (18.2; 118.2; 218.2) has regular reliefs (18.2.1, 18.2 .2).

[Claim 7.] Lighting module (2; 102; 202) according to claim 2 and according to one of claims 3 to 6, in which the first reflection surface (18.1; 118.1, 218.1) is arranged on the same side of the dividing plane as the first lighting sub-module (5; 105; 205), and the second reflection surface (18.2; 118.2; 218.2) is arranged on the same side of the dividing plane as the second lighting sub-module (10; 110; 210).

[Claim 8.] Lighting module (2; 102; 202) according to one of claims 3 to 7, further comprising a housing (4) housing the first lighting sub-module (5; 105; 205), the second lighting sub-module (10; 110; 210), the first reflection surface (18.1; 118.1; 218.1) and/or the second surface reflector (18.2; 118.2; 218.2) being formed on or supported by said housing (4).

[Claim 9.] Lighting module (2; 102; 202) according to one of Claims 1 to 9, in which the first projection lens (8; 108; 208) has a focal zone located on the reflecting surface ( 6.2; 106.2; 206.2) of the primary collector (6.1), behind the primary light source (6.3; 106.3; 206.3), said first projection lens being configured to image a part of the reflecting surface (6.2; 106.2; 206.2 ) of the primary collector (6.1) located, in a general direction of propagation of the light rays reflected in said first lighting sub-module, at the rear of the primary light source (6.3; 106.3; 206.3).

[Claim 10.] Lighting module (202) according to one of claims 1 to 9, in which the sub-assembly (206) is a first sub-assembly (206), the first lighting sub-module ( 205) further comprising a second sub-assembly (206'”, 206””) with: a secondary light source (206'”.3, 206””.3); a secondary collector with a reflecting surface (206'".2, 206"".2) capable of reflecting light rays emitted by said secondary light source into a secondary reflected light beam; wherein said second subassembly (206'", 206"") is recessed rearwardly, in a general direction of ray propagation, relative to the first subassembly (206); wherein the first projection lens (8; 108; 208) is configured to project at least a majority of said secondary reflected light beam into a secondary projected light beam; and wherein said primary projected light beam and said secondary projected light beam together form said first light beam.

[Claim 11.] Lighting module (202) according to claim 10, in which the optical device (218) is configured to reflect towards the second projection lens (212) also light rays coming directly from the secondary light source (206”'.3, 206””.3) and passing in front of the reflecting surface (206'”.2, 206””.2) of said secondary collector.

[Claim 12.] Lighting module (202) according to one of claims 10 and 11, in which the optical device (218) comprises a third reflection surface (218'”.1 , 218””.1 ) configured to reflect the light rays coming directly from the secondary light source (206'”.3, 206””.3) towards the second reflection surface (218.2), said second reflection surface being configured to also reflect the rays reflected by the third reflecting surface to the second projection lens (212).

[Claim 13.] Lighting module (2; 102; 202) according to one of the preceding claims, in which the first and the second lens are formed in one piece.

[Claim 14.] Lighting module (2; 102; 202) according to one of the preceding claims, in which the first and second lenses each have a different focal length.