Matrix automotive lighting module imaging light sources

Abstract

The invention relates to a lighting module (2) for a motor vehicle headlight, comprising: a plurality of optical parts each comprising a light entry face, a light exit face and an object focal point (4.4) so as to be able to project a light image of the object focal point (4.4); and a plurality of light sources (6) comprising groups (6.1, 6.2, 6.3) of light sources (6) which are each arranged side by side transversely and opposite the light entry faces, the groups of light sources (6) being offset transversely relative to one another with respect to the corresponding optical part so that the light images of the plurality of optical parts form groups of light spots which are arranged side by side transversely and offset between the groups of light spots.

Description

MATRIX AUTOMOTIVE LIGHTING MODULE IMAGING LIGHT SOURCES

[0001] The invention relates to the technical field of lighting, in particular automotive lighting.

[0002] The published patent document FR 2 858 042 A1 discloses an automotive lighting module producing a cut-off beam by means, essentially, of a light source illuminating perpendicular to the optical axis, an elliptical collector reflecting the rays of the light source towards a focus, a reflective surface with a cut-off edge of the rays reflected at the focus in question, and a projection lens, thus forming a cut-off lighting beam corresponding to an automotive lighting function called "low beam". The reflective surface with the cut-off edge is produced by an optical part made of transparent material.The latter has a spherical lower surface forming a diopter receiving light rays emitted by a second light source and reflected by a second elliptical collector, these rays forming a lighting beam adding to the cut-off lighting beam, to provide an automotive lighting function called "road". The collector and the projection lens can be replaced by the optical part made of transparent material, the latter then no longer being able to have a spherical lower surface forming an entry diopter for light rays emitted by a second light source. This variant also requires the application of a reflective treatment on certain surfaces of the optical part because the angles of incidence of the light are such that they do not allow total reflections to be achieved everywhere where necessary.In summary, the lighting module in this teaching is somewhat bulky and is not suitable for being replicated in several sets arranged side by side.

[0003] However, certain motor vehicle body designs impose particular constraints on the headlights and therefore on the lighting modules constituting them, in particular configurations where the headlight is elongated in a predominantly vertical main direction, with an outward and upward inclination, and a rearward and upward inclination.

[0004] The invention aims to overcome at least one of the drawbacks of the aforementioned state of the art. More particularly, the invention aims to provide a matrix-type automotive lighting function in a simple and economical manner and / or which can comply with different stylistic constraints of vehicles.

[0005] The subject of the invention is a lighting module for a motor vehicle lighting device, comprising:- a plurality of optical parts made of transparent or translucent material, each comprising a light entry face and a light exit face and comprising an object focus facing said entry face;- a plurality of selectively activatable light sources arranged facing the light entry faces;remarkable in that the plurality of light sources is arranged on the same plate and comprises groups of light sources arranged side by side transversely in directions comprising the object foci of the optical parts, respectively, said groups of light sources being offset transversely relative to each other with respect to the corresponding optical part so that the plurality of optical parts forms light images of the light sources, composed of groups of light spots arranged side by side transversely and offset between said groups of light spots.;

[0006] By "the groups of light sources arranged side by side transversely in directions comprising object foci of the optical parts", it is meant that the light sources of each group of light sources are arranged along a straight line passing through the object focus of the optical part with which the group of light sources is associated.

[0007] By "arranged in a direction" or "arranged in a straight line" is meant that the center of the light sources, and more particularly of the emitting part of the light sources, of a group are arranged in a strip centered on this direction or this straight line, and of height defined by the height of the emitting part of the light sources

[0008] It will thus be understood that the light sources are generally aligned along the direction or the right but a slight offset of the light sources, transverse to this direction is not excluded, provided that the center of the light sources is not offset by more than one height of the emissive part of the light sources.

[0009] In a particular example, the light sources, and more particularly the emitting part of the light sources, of a group may all be centered on this direction or this line, that is to say that all the centers of the light sources of a group are arranged on the line or the direction.

[0010] In particular, the light sources of the groups of light sources are arranged along this direction or this straight line, on either side of the object focus of the optical part with which they are associated. Thus, within a group of light sources, certain light sources are arranged on a first side of the object focus, others on a second side of the object focus. Optionally, a light source may be arranged on the object focus of the optical part with which it is associated.

[0011] In particular, the directions in which the light sources of the light source groups are arranged are parallel. According to an exemplary embodiment, the light source groups are identical.

[0012] Thus, thanks to the positioning of the light sources relative to the object focus of the optical parts, each optical part allows direct imaging of the light sources of the group of light sources with which it is associated. Thanks to the offset of the groups of light sources relative to each other, and to the direct imaging system of the optical parts, the offset of the light sources is immediately reflected in the light images formed by each optical part and projected onto the road. More precisely, each light image is formed by a plurality of light spots, each light spot coming from a light source. Thus, as the light sources are offset, the projected light spots are also offset. The light images and light spots therefore intertwine to form a segmented lighting function.

[0013] Since each light source can be selectively activated, it is then possible to activate or deactivate the projection of each light spot corresponding to a light source. Thus, it is then possible to create dark areas in the segmented lighting function, and to obtain an adaptive lighting function, also called by the acronym ADB for Adaptive Driving Beam.

[0014] In addition, the arrangement of the optical parts relative to each other is very free, the only constraint being to be able to arrange all the light sources on the same plate. This allows for great flexibility in the appearance of the lighting module.

[0015] According to an advantageous embodiment of the invention, the light sources of each of the groups of light sources are spaced, from near to far, by a distance d, the transverse offset of each of the groups of light sources relative to another of said groups of light sources being deddivided by a total number n of optical parts of the plurality of optical parts.

[0016] According to an advantageous embodiment of the invention, one of the light sources of at least one of the groups of light sources is located on the object focus of the corresponding optical part.

[0017] According to an advantageous embodiment of the invention, the optical parts of the plurality of optical parts are all identical. The lighting module according to the invention is then even more economical, because the shifting of the light spots, and therefore the interlacing of the light images for the creation of a segmented lighting function comes solely from the shifting of the light sources, and the same optical part can be used opposite each of the groups of light sources. It is thus not necessary to develop a specific design for each of the optical parts to obtain the desired shifting of the light spots for the formation of the segmented lighting function.

[0018] According to an advantageous embodiment of the invention, each of the groups of light sources comprises a number of said light sources of between 3 and 5. A very small number of light sources per group of light sources and therefore per optical part is sufficient, because each optical part contributes to obtaining the light intensity necessary to perform the desired lighting function. Individually, a group of light sources and its associated optical part do not need to achieve the intensity level required by the regulatory photometric grid of the lighting function performed. It is therefore possible to minimize the number of light sources associated with each optical part.

[0019] According to an advantageous embodiment of the invention, the plurality of optical parts comprises a number of said optical parts between 5 and 9.

[0020] According to an advantageous embodiment of the invention, the light sources of at least one of the groups of light sources have a vertical offset of at least one of said light sources relative to at least one other of said light sources which is less than or equal to a height h of the emitting part of said light sources. This arrangement of the light sources makes it possible in particular to form a cutout in the projected lighting beam. This may for example be advantageous when the light module is a dual-function light module configured to be able to perform both a dipped beam function and a segmented complementary main beam function. Indeed, with such an arrangement of the light sources, the lower edge of the segmented complementary main beam will be able to follow the horizontal cutoff with projection of the dipped beam.

[0021] According to an advantageous embodiment of the invention, the light spots arranged side by side transversely and offset between said groups of light spots partially overlap transversely, so as to form a regulatory automotive lighting function of the segmented supplementary main beam type.

[0022] According to an advantageous embodiment of the invention, each of the optical parts of the plurality of optical parts comprises an additional light entry face facing an additional light source and configured to project via the light exit face of said optical part a light beam with an upper horizontal cutoff. The lighting module is then a dual-function module capable of performing a first lighting function using the groups of light sources and the entry face of the optical parts, and a second lighting function using the additional light sources and the additional light entry face of the optical parts.

[0023] According to an advantageous embodiment of the invention, the light beams with upper horizontal cut-off and the regulatory automotive lighting function of the segmented complementary road type form a segmented main beam type function.

[0024] According to an advantageous embodiment of the invention, the additional light sources are arranged on the same additional plate.

[0025] According to an advantageous embodiment of the invention, the additional plate on which the additional light sources are arranged is parallel to the plate on which the plurality of light sources are arranged.

[0026] The measures of the invention are advantageous in that they make it possible to achieve an adaptive, transversely segmented automotive lighting function, i.e. consisting of a series of light images or spots arranged side by side transversely, advantageously with an overlap, and making it possible to create an unlit or at least darker, mobile zone by dynamic and selective activation and deactivation of the light sources. The optical parts are advantageously all identical, which reduces the development and production cost. Also, each group of light sources can be formed by a strip-shaped component comprising the preformed light sources, i.e. with a predetermined arrangement.The shifting of the light source groups transversely relative to each other and relative to the corresponding optical part can thus be more easily achieved by moving the component relative to the object focus of the corresponding optical part. Thus, a shift of the light spots composing the light images formed by each optical part is easily achieved for the realization of the adaptive lighting function. The arrangement of the optical parts is advantageously free and can thus be adapted to various style requirements of the motor vehicle.

[0027] is a front and schematic view of a lighting module according to the invention;

[0028] is a perspective view of an optical part of a lighting module according to a first embodiment of the invention;

[0029] is a sectional and schematic view of the optical part of the.

[0030] is a schematic front view of the plate and the light sources of the lighting module according to the first embodiment, as well as corresponding light images;

[0031] is a detailed view of part of the plate and the light sources of the lighting module of the, according to a variant.

[0032] is a representation of several possible configurations of the lighting module according to the first embodiment of the invention;

[0033] is a perspective view of an optical part of a lighting module according to a second embodiment of the invention;

[0034] is a sectional and schematic view of the optical part of the.

[0035] is a schematic front view of the plate and the light sources of the lighting module according to the second embodiment, as well as corresponding light images.

[0036] is a detail of a part of the plate and the light sources of the lighting module of the, according to a variant.

[0037] and a schematic view of the lighting beams produced by the lighting module of Figures 7-10. Detailed description

[0038] In the description which follows, the notions of relative position such as “transverse(s)”, “horizontal(s)”, “vertical(s)”, etc. are to be understood when the lighting module of the invention is in the normal operating position, as illustrated in the figures.

[0039] This is a front and schematic view of a lighting module for a motor vehicle, according to the invention, in particular according to a first and a second embodiment which will be described.

[0040] The lighting module 2 (for the first embodiment) and 102 (for the second embodiment) has a generally planar extent, in this case mainly vertical with however an inclination of an angle α in a transverse and vertical plane and an inclination of an angle β in a longitudinal and vertical plane. The X direction corresponds to the longitudinal direction of the vehicle, the Y direction to the transverse direction and the Z direction to a vertical direction. The inclination along the angle α is therefore in the YZ plane and the inclination along the angle β is in the XZ plane. It should be noted that the inclinations α and β are optional in that each of them can have a zero value. The generally planar extent of the lighting module 2 or 102 is essentially dictated by constraints of integration of said lighting module in current motor vehicle body designs.

[0041] Generally, the inclination along the angle α can be between 0° and 30° and the inclination along the angle β can be between 0° and 20°.

[0042] Figures 2 to 5 illustrate a lighting module according to the first embodiment.

[0043] This is a perspective view of an optical part 4 present in several copies in the lighting module 2 according to the first embodiment.

[0044] The optical part 4 is made of transparent or translucent material and has a light entry face 4.1, a light exit face 4.2 and an object focus 4.4 located opposite the light entry face 4.1. The optical part 4 is optically configured to project via the light exit face 4.2 and along an optical axis 4.3 of the optical part, an image of a light source (not shown) arranged at the object focus 4.4, opposite the light entry face 4.1.

[0045] This is a sectional and functional view of the optical part 4 of the.

[0046] A light source 6, supported by a plate 8, is arranged opposite the light input face 4.1, precisely in this example at the object focus 4.4. It can be observed that the light rays emitted by the light source 6 propagate in the optical part 4 towards the output face 4.2. The optical part 4 is specifically configured to project a direct image of the light source 6, as illustrated to the right of the optical part 4 in the. It should be noted that the light source 6, supported by the plate 8, can be inclined in a longitudinal and vertical plane by an angle β, with reference to the and its explanations above.

[0047] This is a schematic front view of the board and the light sources of the lighting module according to the first embodiment, as well as corresponding light images.

[0048] The lighting module 2 comprises several optical parts 4 (Figures 2 and 3), in this case three, and several light sources 6, in this case three, are arranged side by side transversely opposite the light entry face of each of the optical parts 4. It is understood that it has been chosen to illustrate the lighting module 2 with three optical parts as an example, but that the lighting module 2 could comprise another number of optical parts, for example, a number between 5 and 9.

[0049] At the same time, three groups 6.1, 6.2 and 6.3 of light sources can be observed, for the three aforementioned optical parts 4 (Figures 2 and 3), respectively. The three optical parts are all identical, which reduces the cost of the lighting module 2.

[0050] It will be noted that the light sources of each of the three groups 6.1, 6.2, 6.3 of light sources are all arranged side by side transversely in a direction which includes the object focus of the optical part with which the group 6.1, 6.2, 6.3 of light sources is associated. This direction is perpendicular to the optical axis 4.3 of the optical part 4.

[0051] The first group 6.1 of light sources 6 comprises a light source 6 in a central position at the object focus 4.4 of the corresponding optical part 4 (Figures 2 and 3), and two light sources 6 arranged transversely on either side of the light source in the central position 6. This arrangement has the effect that the optical part 4 (Figures 2 and 3) projects a light image of the central light source 6, as illustrated by the central light spot located to the right of the first group 6.1 of light sources. The optical part 4 (Figures 2 and 3) also projects light images of the two light sources arranged transversely on either side of the light source in the central position 6, illustrated by the two light spots on either side laterally of the central light spot, directly to the right of the first group 6.1 of light sources 6.The principle of propagation of the light rays emitted by the light sources arranged transversely on either side of the light source in the central position is similar to that which has been described with reference to the. It is understood that these two light images may have a little less sharpness than the central light image, taking into account the fact that the imaged light sources are not exactly at the object focus but somewhat offset transversely. The light sources 6 of the first group 6.1 of light sources are advantageously distant from each other, from near to far, so that the corresponding projected light images are also distant from each other. The distance between two adjacent light sources, taken from center to center, is advantageously constant.

[0052] The second group 6.2 of light sources 6 is at a distance from the first group 6.1 of light sources 6, in the plane of the plate 8, in this case following a main direction, mainly vertical, of said plate 8, it being understood that the plate 8 can take other forms, as will be detailed later in relation to the. It can be observed that the second group 6.2 of light sources 6 is in itself identical to the first group 6.1 with however the difference that the three light sources 6 arranged side by side transversely are offset transversely, in this case to the right, relative to the first group 6.1 and relative to the object focus 4.4 of the corresponding optical part 4, so that the light images thus projected are also offset, in this case to the right, as is visible in the light spots directly to the right of the second group 6.2 of light sources 6.More particularly, it can be observed that the central light source 6 is no longer on the object focus 4.4 of the corresponding optical part 4 but to its right, that the left light source 6 is brought closer to the object focus 4.4 and that the right light source is further away from the object focus 4.4.

[0053] The third group 6.3 of light sources 6 is at a distance from the second group 6.2 of light sources 6, in the plane of the plate 8, in this case following the main, predominantly vertical, direction of said plate 8. As already mentioned above, the plate 8 can take other forms. It can be observed that the third group 6.3 of light sources 6 is in itself identical to the first and second groups 6.1 and 6.2 with, however, the differences that the three light sources 6 arranged side by side transversely are offset transversely, in this case to the right, relative to the second group 6.2 and relative to the object focus 4.4 of the corresponding optical part 4, so that the light images thus projected are also offset, in this case to the right, as is visible in the light spots directly to the right of the third group 6.3 of light sources 6.More particularly, it can be observed that the central light source 6 and the right-hand light source are further away from the object focus 4.4 of the corresponding optical part and that the left-hand light source 6 is closer to said object focus 4.4.

[0054] In view of the distribution of the light images projected by each of the optical parts 4, namely the light sources 6 of the three groups 6.1, 6.2 and 6.3 of light sources 6, as illustrated by the three groups of light spots represented to the right of the lighting module 2, it is understood that the combination of these light images makes it possible to produce transversely discretized lighting, which makes it possible to produce in particular a segmented automotive regulatory lighting function, which may also be called a matrix automotive regulatory lighting function. This function may in particular be a segmented complementary road type regulatory automotive lighting function.In a segmented automotive regulatory lighting function, by appropriate control of the light sources 6 (in this case 9 in number), a dynamic dark zone, in a transverse direction, can be obtained, this dark zone corresponding to one or more inactive light sources.

[0055] The incremental transverse offset of the groups of light sources with respect to the object focus is advantageously equal to the distance between two adjacent light sources divided by the number of optical parts, provided that the distance in question between two adjacent light sources is identical for all the light sources. Such an approach allows the light images, when all combined, to produce a total projected light image which forms a homogeneous and continuous horizontal band in that it does not include a dark area. Indeed, if we consider the first group 6.1 of light sources distant from each other by the distance d, we observe two unlit areas between the three light spots represented directly to the right of said first group 6.1 of light sources 6. The incremental offset of the second and third groups 6.2 and 6.3 of light sources 6 with respect to the object focus 4.4 has the effect of transversely shifting the projected light images so as to progressively cover and fill the two dark areas between the light spots of the first group 6.1 of light sources 6.

[0056] It is understood, however, that other configurations are conceivable. The distance between adjacent light sources of all groups of light sources does not necessarily have to be constant. Similarly, the incremental offset of each group of light sources also does not necessarily have to be constant. It is indeed conceivable to provide variable distances between light sources of the same group and / or incremental offsets, while ensuring the desired objective, namely a lighting beam forming a generally continuous transverse band and transversely discretized by selective activation of the light sources. In addition, it is conceivable that the first, second and third groups 6.1, 6.2, 6.3 of light sources 6 do not comprise the same number of light sources 6.

[0057] At, it can be observed that the object foci 4.4 of the optical parts are aligned along the main direction of the lighting module 2. Such alignment is not obligatory, it is in fact possible to provide a less geometric distribution of the object foci while achieving the transverse offset of the groups of light sources relative to their respective object foci and thus ensuring a transverse offset of the light images of the light sources.

[0058] It should be noted that it is the position of the light source group relative to the optical part that determines the transverse position of the light images of the light sources in question. A possible transverse shift of the sub-modules consisting of the optical parts and their light source groups relative to each other causes a minimal transverse shift of the light images in comparison with the transverse shift caused by the transverse shift of the light sources relative to the optical parts of the sub-modules. The reason is that the shift of the light sources relative to the optical parts is amplified by the projection of light images of the light sources, unlike the shift of the sub-modules relative to each other.

[0059] This is a detailed view of part of the board and light sources of the lighting module of the, according to a variant.

[0060] In the, it can be observed that the light sources 6 of one or more of the groups 3.1, 6.2 and 6.3 of light sources 6 do not necessarily have to be perfectly aligned transversely, that is to say horizontally. As can be seen, the light sources 6 of the same group may have a relative vertical offset, that is to say of one with respect to at least one of the others. This offset is interesting in that it makes it possible to vertically move the light images produced, which can be advantageous in a regulatory automotive lighting function of the segmented complementary road type, as mentioned above, in addition to a regulatory automotive lighting function with a higher horizontal cut-off with a step. The relative vertical offset of the light sources of a group thus allows the light images to conform to the step in question.The vertical offset is advantageously limited to the fact that each of the light sources 6 of the same group has its center contained in a transverse corridor of a height H corresponding to the height h of the luminous part of the light sources 6.

[0061] This is an illustration of the three possible configurations of the lighting module 2 according to the first embodiment of the invention.

[0062] The configuration of the lighting module 2' shows an arrangement of the sub-modules following a horizontal direction for the middle row of three sub-modules and a predominantly vertical arrangement with the sub-module located above the middle row and the sub-module located below the row in question.

[0063] The 2'' lighting module configuration shows an arrangement of the sub-modules in a predominantly vertical direction and in a horizontal direction at the bottom of the lighting module.

[0064] The 2''' lighting module configuration shows an arrangement of sub-modules in a horizontal and a vertical direction.

[0065] Figures 7-11 illustrate a lighting module according to the second embodiment. Reference numbers of the first embodiment are used to designate identical or corresponding elements, but these numbers are increased by 100. Reference is also made to the description of these elements in the context of the first embodiment. Specific reference numbers between 100 and 200 are used to designate elements specific to this embodiment.

[0066] This is a perspective view of an optical part 104 present in several copies in the lighting module 102 according to the second embodiment.

[0067] The optical part 104 is made of transparent or translucent material and has a light entry face 104.1, a light exit face 104.2 and an object focus 104.4 located opposite the light entry face 104.1. The optical part 104 is optically configured to project via the light exit face 104.2 and along an optical axis 104.3 of the optical part, an image of a light source (not shown) arranged at the object focus 104.4, opposite the light entry face 104.1.

[0068] Unlike the optical part 4 (figures 2 and 3) of the first embodiment, the optical part 104 comprises an additional light entry face 104.5 opposite which an additional light source (not shown) is intended to be arranged. As will be detailed in relation to the, the optical part 104 is configured to form with the light rays emitted by the additional light source arranged opposite the additional light entry face 104.5 an illumination beam with a higher horizontal cutoff.

[0069] This is a sectional and functional view of the optical part 104 of the.

[0070] The additional light source 110 arranged opposite the additional light entry face 104.5 of the optical part 104 is shown there. It is supported by an additional plate 112 separate from the plate 108 supporting the light source 106, due to the further rearward position of the additional light entry face 104.5 relative to the light entry face 104.1. Alternatively, the additional light source 110 could be arranged on the plate 108 supporting the light source 106. It can be observed that the light rays emitted by the additional light source 110 (represented in continuous lines) propagate in the transparent or translucent material of the optical part 104 and undergo reflections there, in particular of the total reflection type, to be returned towards the light entry face 104.1 provided with a cut-off edge 104.6 formed by an edge of the transparent or translucent material in question.The light rays are then returned to the light exit face 104.2.

[0071] The light rays (represented by broken lines) emitted by the light source 106 arranged opposite the light entry face 104.1, in this case on the object focus 104.4, propagate in the transparent or translucent material of the optical part 104 towards the light exit face 104.2 to thus project a luminous image of the light source 106 in question, similarly to the optical part of the first embodiment.

[0072] This is a schematic front view of the board and the light sources of the lighting module according to the second embodiment, as well as corresponding light images.

[0073] The lighting module 102 comprises several optical parts 104 (Figures 7 and 8), in this case three, all identical, and several light sources 106, in this case three, are arranged side by side transversely opposite the light entry face of each of the optical parts 104, similarly to the first embodiment. It is understood that it has been chosen to illustrate the lighting module 102 with three optical parts as an example, but that the lighting module 102 could comprise another number of optical parts, for example, a number between 5 and 9.

[0074] Unlike the first embodiment, the lighting module 102 further comprises an additional light source 110 arranged opposite the additional light entry face 104.5 () of each of the optical parts 104.

[0075] Three groups 106.1, 106.2 and 106.3 of light sources can be observed for the three aforementioned optical parts 104 (Figures 7 and 8), respectively. The principle of arrangement of the light sources 106 of the groups 106.1, 106.2 and 106.3 of light sources and their effect on the light images produced are identical to the first embodiment. Reference is therefore made to the related description of the first embodiment.

[0076] The additional light sources 110 are visible through openings 108.1 formed in the plate 108 supporting the light sources 106. The plate 112 supporting the additional light sources 110 is located at the rear of the plate 108. The plates 108 and 112 are thus offset from each other in a direction perpendicular to one of said plates; they are advantageously parallel. It is understood that the openings 108.1 formed in the plate 108, intended to allow the passage of the rear part with the additional light entry face of the optical parts 104, are schematic and may take other forms; in particular, they may be notches, in the manner of a comb.

[0077] La is a detailed view of a portion of the plate and the light sources of the lighting module of the, according to a variant. In this variant, the light sources 106 of the same group may have a relative vertical offset, that is to say of one with respect to at least one of the others. This offset is advantageously limited to the fact that each of the light sources 106 of the same group has its center contained in a transverse corridor of a height H corresponding to the height h of the luminous portion of the light sources 106. The advantages are the same as those described in relation to the, namely to allow the luminous images produced to follow the not necessarily rectilinear cutoff of the lighting beam produced by the additional light sources 110.

[0078] This is a schematic representation of the image of the light beams produced by the lighting module 102 of Figures 7-10.

[0079] The H axis is the horizontal direction and the V axis is the vertical direction, the intersection of the H and V axes corresponding to the optical axis of the lighting module 102.

[0080] The lower part of the light image is produced by the additional light sources 110, where the upper horizontal cut-off is clearly visible, essentially at the level of the H axis. A projection, at the level of the intersection of the V axis and as shown, can be provided, in particular by providing a projection corresponding to the cut-off edge of one of the optical parts. This is a regulatory automotive lighting function with upper horizontal cut-off, commonly referred to as “low-beam” in English.

[0081] The upper part of the light image is produced by the light sources 106 and corresponds to the combination of the light spots represented to the right of the. This upper part forms, with the lower part mentioned above, a regulatory automotive lighting function commonly referred to as "high-beam". This function is said to be segmented or matrix in that the light spots in the upper part can be controlled individually by powering or not powering each of the light sources 106. It will be noted that this upper part corresponds to the light beam projected by the lighting module 2 according to the first embodiment notably illustrated in FIGS. 2 to 4.

[0082] The lighting module 102 according to the second embodiment can take various configurations in terms of the number of optical parts and their arrangement, as illustrated in for the first embodiment.

[0083] In general, that is to say in particular for the two embodiments described above as well as for other embodiments not described, the lighting module may comprise a housing engaging with the optical parts and with the plate(s) supporting the light sources, so as to ensure precise positioning of the optical parts relative to the light sources and of the optical parts relative to each other. For this purpose, the optical parts may have protrusions, as can be seen in Figures 2 and 7, intended to engage in hollows or interstices of the aforementioned housing.

Claims

Lighting module (2; 102) for a motor vehicle lighting device, comprising:- a plurality of optical parts (4; 104) made of transparent or translucent material, each comprising a light entry face (4.1; 104.1) and a light exit face (4.2; 104.2) and comprising an object focus (4.4; 104.4) facing said light entry face (4.1; 104.1);- a plurality of selectively activatable light sources (6; 106) arranged facing the light entry faces (4.1; 104.1);characterized in that the plurality of light sources (6; 106) is arranged on the same plate (8; 108) and comprises groups (6.1, 6.2, 6.3; 106.1, 106.2, 106.3) of the light sources (6; 106) arranged side by side transversely in directions comprising the object foci (4.4; 104.4) of the optical parts (4; 104), respectively, said groups (6.1, 6.2, 6.3; 106.1, 106.2, 106.3) of light sources (6; 106) being transversely offset relative to each other with respect to the corresponding optical part (4; 104) so ​​that the plurality of optical parts (4; 104) forms light images of the light sources (6; 106), composed of groups of light spots arranged side by side transversely and offset between said groups of light spots. The lighting module (2; 102) of claim 1, wherein the light sources (6; 106) of each of the groups (6.1, 6.2, 6.3; 106.1, 106.2, 106.3) of light sources (6; 106) are spaced apart, from near to far, by a distance d, the transverse offset of each of the groups (6.1, 6.2, 6.3; 106.1, 106.2, 106.3) of light sources (6; 106) relative to another of said groups (6.1, 6.2, 6.3; 106.1, 106.2, 106.3) of light sources (6; 106) being deddivided by a total number n of optical parts (4; 104) of the plurality of optical parts 84; 104). Lighting module (2; 102) according to one of claims 1 and 2, wherein one of the light sources (6; 106) of at least one of the groups (6.1, 6.2, 6.3; 106.1, 106.2, 106.3) of light sources (6; 106) is located on the object focus (4.4; 104.4) of the corresponding optical part (4; 104). Lighting module (2; 102) according to one of claims 1 to 3, wherein the optical parts (4; 104) of the plurality of optical parts (4; 104) are all identical. Lighting module (2; 102) according to one of claims 1 to 4, wherein each of the groups (6.1, 6.2, 6.3; 106.1, 106.2, 106.3) of light sources (6; 106) comprises a number of said light sources (6; 106) between 3 and 5. Lighting module (2; 102) according to one of claims 1 to 5, wherein the plurality of optical parts (4; 104) comprises a number of said optical parts (4; 104) between 5 and 9. Lighting module (2; 102) according to one of claims 1 to 6, wherein the light sources (6; 106) of at least one of the groups (6.1, 6.2, 6.3; 106.1, 106.2, 106.3) of light sources (6; 106) have a vertical offset of at least one of said light sources (6; 106) relative to at least one other of said light sources (6; 106) which is less than or equal to a height h of the emitting part of said light sources (6; 106). Lighting module (2; 102) according to one of claims 1 to 7, in which the light spots arranged side by side transversely and offset between said groups of light spots partially overlap transversely, so as to form a regulatory automotive lighting function of the segmented complementary road type. Lighting module (102) according to one of claims 1 to 8, wherein each of the optical parts (104) of the plurality of optical parts (104) comprises an additional light input face (104.5) facing an additional light source (110) and configured to project through the light output face (104.2) of said optical part (104) a light beam with an upper horizontal cutoff. Lighting module (102) according to claims 8 and 9, wherein the light beams with upper horizontal cutoff and the regulatory automotive lighting function of the segmented complementary road type form a segmented high beam type function. Lighting module (102) according to one of claims 9 to 10, in which the additional light sources (110) are arranged on the same additional plate (112). Lighting module (102) according to claims 8 and 11, wherein the additional plate (112) on which the additional light sources (110) are arranged is parallel to the plate (108) on which the plurality of light sources (106) are arranged.

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