Luminous device comprising at least one optical element

Abstract

The invention relates to a luminous device (1) for a motor vehicle, comprising - a first luminous module (10) and a second luminous module (20), the modules each comprising one light source (100, 200) and one collector (101, 201), the sources emitting light in opposite directions; - a projecting optical system (30) common to the modules, for projecting the beam reflected by the collectors; - a first optical element (40) for generating a virtual image (201a) of the second collector, with a rear region positioned at the focus of the projecting optical system, the focus of the projecting optical system (30) being located in a rear region of the first collector (101), or the luminous device (1) comprising a second optical element (50) for generating a virtual image (101a) of the first collector (101) with a rear region positioned at the focus (300) of the projecting optical system (30).

Description

Description Title of the invention: A lighting device comprising at least one optical element technical field

[0001] The invention relates to the technical field of automotive lighting devices. State of the art

[0002] In the field of automotive lighting, it is generally known to use lighting devices comprising at least one light module with a light source, a collector with a reflective surface, and a lens-type projection optic that images the collector's reflective surface to form a light beam with a cutoff at the top. The type of lens used is convex in a vertical plane and neutral in a horizontal plane, which implies that in the vertical plane, the lens has a focal line whose curvature follows the curve of the lens itself. This focal line is usually located at the rear edge of the collector, so that the cutoff at the top of the light beam formed from the images of the collector's reflective surface by the lens is achieved at this rear edge.

[0003] In known lighting systems with two light modules facing opposite directions, these are separated by a partition, and the projection optics consist of two lenses joined together to form a single unit, each lens dedicated to one module and therefore to one light collector. However, this type of solution is not optimal because it results in an unevenly illuminated appearance. Indeed, sometimes only one of the two light modules is activated. A dark area then appears at the lens associated with the unlit light module.

[0004] Furthermore, the space provided for the two light modules is compact, and therefore each lens associated with one of the light modules must be shorter than the lens a professional would typically use. Consequently, the compactness of all these components tends to lead to a loss of efficiency in the lighting system.

[0005] One solution could be to use a single lens with a common entrance surface for both light modules. However, this arrangement is not optimal since the two light modules are spaced apart. In particular, the collectors of the two light modules cannot be placed side by side, as a gap must be left between them to accommodate the light sources of each module. This gap between the light modules is then visible in the beam projected by the lighting device, especially when the two light modules are activated, there is a dark area that is created at the junction between the beams emitted by each light module.

[0006] The invention is therefore situated within this context and seeks to resolve all the aforementioned drawbacks. Thus, the invention aims to provide a lighting device comprising at least two opposing light modules, each including a collector, and a common lens whose illuminated appearance makes it possible to create a homogeneous light signature regardless of which light module(s) is / are activated. Presentation of the invention.

[0007] The invention relates to a lighting device for a motor vehicle comprising: - at least one first and one second light modules, the light modules each comprising a light source capable of emitting light and a collector having a reflective surface arranged to collect and reflect the light emitted by said corresponding light sources into a light beam, the two light sources being arranged to emit light in opposite directions; - a projection optic common to said light modules, arranged to project the light beams reflected by the collectors of the light modules, said projection optic comprising a focus; - a first optical element comprising at least two diopters arranged in the path of the light emitted by the light source of the second light module, the diopters of the first optical element being arranged to generate a virtual image of the reflective surface of the collector of the second light module, said virtual image of the reflective surface of the collector of the second light module having a rear area positioned at the focal point of the projection optics, the focal point of the projection optics being located at a rear area of ​​the collector of the first light module, or the light device comprising a second optical element comprising at least two diopters arranged in the path of the light emitted by the light source of the first light module, the diopters of the second optical element being arranged to generate a virtual image of the reflective surface of the collector of the first light module,said virtual image of the reflective surface of the collector of the first light module comprising a rear zone positioned at the focal point of the projection optics.

[0008] The road lighting system of a motor vehicle comprises at least the first and second light modules. Each light module includes a light source capable of emitting a beam of light. Each light module includes a collector having a reflective surface arranged to collect and reflect the beam of light emitted by said light source. Each collector may define a cavity in which the light source of the light module to which it is associated is mounted. Each light source may be positioned directly above the collector. corresponding, so that the reflective surface of said collector collects and reflects the light beam emitted by said corresponding light source.

[0009] The phrase "the projection optics are common to the first and second light modules" means that the entrance surface of the projection optics is common to both the first and second light modules. Thus, the light beam emitted by the first light module and the light beam emitted by the second light module can pass through the projection optics from the same initial surface, known as the entrance surface. The projection optics also have an exit surface common to both light modules. Therefore, the light beam from the first light module and the light beam from the second light module exit through the same exit surface of the projection optics.

[0010] In particular, a common projection lens has a single focal point. It is therefore not formed by the juxtaposition of several lenses, each with its own focal point. A common projection lens can extend in a substantially vertical direction.

[0011] The lighting device comprises at least one first optical element with at least two diopters. The two diopters are positioned along the path of the light emitted by the light source of the second light module. The presence of the first optical element allows for the creation of a virtual image of the collector of the associated second light module. This virtual image is such that the rear area of ​​the virtual image of the reflective surface of the second module's collector is located at the focal point of the projection optic. Creating a virtual image of the reflective surface of the second collector allows this reflective surface to be "shifted" for the projection optic. Thus, for the projection optic, the rear area of ​​the second light module's collector appears to be positioned at the focal point of the projection optic.Indeed, the projection optics will image the virtual image of the reflective surface of the second light module's collector. Since the rear area of ​​the virtual image of the second module's collector is located at the focal point of the projection optics, the rear areas of the first light module's collector and the rear areas of the second light module's collector appear juxtaposed to the projection optics at the focal point. Thus, the light beam projected by the projection optics is free of dark areas, even when both light modules are activated.

[0012] Furthermore, as the projection optics are common to both light modules, the light signature of the lighting device is identical regardless of which light module(s) are activated.

[0013] In a first alternative, the first optical element creates a virtual image of the collector of the second light module, offset upwards relative to the collector of the second light module, so that the rear area of ​​the virtual image of the collector of the second light module is positioned at the level of the focus of the projection optics. In a second alternative, the first optical element allows the creation of a virtual image of the collector of the second light module shifted downwards relative to the collector of the second light module, so that the rear area of ​​the virtual image of the collector of the second light module is positioned at the focus of the projection optics.

[0014] In a first embodiment, the projection optics include a focal point located near a rear zone of the collector of the first light module. A focal point located near a rear zone of the collector is understood to be, in particular, a focal point situated at a distance from said rear edge that is less than or equal to 10 mm. The light device then lacks any optical element arranged in the path of the light emitted by the light source of the first light module.

[0015] Thanks to the first optical element, the rear area of ​​the virtual image of the reflective surface of the second collector is brought to the level of the rear area of ​​the collector of the first light module. Thus, in this first embodiment, the rear area of ​​the collector of the first light module, the rear area of ​​the virtual image of the collector of the second light module, and the focal point of the projection optics are positioned approximately at the same location. The projection optics are then arranged to project onto the road both the image of the reflective surface of the collector of the first light module and the image of the virtual image of the reflective surface of the collector of the second light module.

[0016] In this first embodiment, the lighting device comprises only one optical element associated with the second lighting module, and the first lighting module is not associated with any optical element. Having an optical element associated with only one lighting module of the lighting device optimizes the efficiency of the lighting device. Indeed, the transmission loss due to the presence of the optical element will only be effective for the lighting module associated with that optical element.

[0017] Furthermore, the use of the optical element associated with the second light module can help to avoid the addition of chromatism in the light beam produced by the first light module.

[0018] In a second embodiment, the lighting device includes a second optical element that creates a virtual image of the reflective surface of the collector of the first light module. The focal point of the projection optics is then located at a rear area of ​​the virtual image of the reflective surface of the collector of the first light module.

[0019] In one alternative, the second optical element creates a virtual image of the first light module's collector, offset upwards relative to the collector, so that the rear area of ​​the virtual image of the first light module's collector is positioned at the focal point of the projection optics. In a second alternative, the second optical element creates a virtual image of the first light module's collector. offset downwards relative to the collector of the first light module, so that the rear area of ​​the virtual image of the collector of the first light module is positioned at the focal point of the lens.

[0020] Thanks to the first and second optical elements, the rear areas of the virtual images of the reflective surfaces of the first and second light modules are brought to the same level, namely the focal point of the projection optics. Thus, in this second case, the rear area of ​​the virtual image of the collector of the first light module, the rear area of ​​the virtual image of the collector of the second light module, and the focal point of the projection optics are positioned in approximately the same place.

[0021] The projection optics are then arranged to project onto the road both the image of the virtual image of the reflective surface of the collector of the first light module, and the image of the virtual image of the reflective surface of the collector of the second light module.

[0022] In this second embodiment, the first and second optical elements can be smaller than the first optical element used in the first embodiment. Using two optical elements can thus lead to a reduction in size, primarily along the optical axis of the lighting device. Indeed, using two optical elements allows the deviation of the light beam to be distributed across the light beams of each of the first and second modules. Conversely, when only one optical element is used, the deviation of the light beam is concentrated entirely on the light beam of the second module, which requires a larger optical element.

[0023] Thanks to the invention, it is possible to obtain a lighting device comprising at least two opposing light modules, each with a collector, and a lens common to both light modules, whose illuminated appearance creates a homogeneous light signature regardless of which light module(s) is / are activated. Therefore, by using the first optical element, and possibly the second optical element, it is possible to use a single projection lens common to both the first and second light modules.

[0024] Advantageously, the projection optics consist of a lens. It should be understood that the projection optics can be formed by a single lens or a combination of several lenses.

[0025] Advantageously, the projection optics include at least one mirror. It should be understood that the projection optics can be formed by a single mirror or a combination of several mirrors.

[0026] Alternatively, and without departing from the scope of the invention, the projection optics could be formed by combining one or more lenses with one or more mirrors.

[0027] Advantageously, the two collectors are oriented in opposite directions.

[0028] In a position where the light device is used, the first light module can be positioned above the second light module.

[0029] The first and second light modules can be arranged opposite each other in a vertical direction, so that the cavity of the first light module and the cavity of the second light module face each other.

[0030] Advantageously, the light source of the first module and the light source of the second module are arranged on two opposite faces of the same support.

[0031] It is the presence of the support that prevents the first and second light modules from being brought as close together as desired. The invention thus makes it possible to position the support for the light sources between the two collectors of the light modules in order to allow the realization of the lighting device, while presenting the projection optics with two collectors whose rear areas are brought to the same level thanks to the virtual image(s) formed by the first optical element and possibly the second optical element.

[0032] Advantageously, the first optical element can be a prism or a trapezoid and / or, when the luminous device includes a second optical element, the second optical element can be a prism or a trapezoid.

[0033] In particular, the prism can extend into a transverse position by being substantially inclined with respect to the optical axis of the light device.

[0034] Specifically, a trapezoid can be defined as a plate with parallel faces. A trapezoid can have two diopters with the same orientation. A trapezoid can extend transversely while being substantially inclined with respect to the optical axis.

[0035] Changing the thickness of the trapezoid can allow the virtual image of the second collector to be moved more or less.

[0036] Advantageously, the first and second optical elements form a single piece.

[0037] In this embodiment, the first and second optical elements can be linked together so as to form a single part common to both light modules.

[0038] Advantageously, the first and second optical elements form two separate parts.

[0039] In this embodiment, the first and second optical elements can be positioned close to each other, for example at a distance of less than 10 mm.

[0040] Advantageously, the first and second optical elements are symmetrical with respect to each other about an optical axis of the projection optics. The first and second optical elements can then be arranged on either side of the optical axis of the projection optics, being substantially symmetrical with respect to each other.

[0041] In the embodiment, the first and second optical elements can form a single piece.

[0042] According to a first example, the first and second optical elements are prisms, and the two prisms are connected by their tips.

[0043] In another example, the first and second optical elements are trapezoids, and the two trapezoids are connected in such a way as to form a V extending in a direction parallel to the path of the light emitted by the light sources of the first and second light modules.

[0044] Advantageously, the projection optics include a common entrance surface for both light modules. Advantageously, the projection optics include a common exit surface for both light modules.

[0045] Advantageously, the second light module is positioned below the optical axis of the projection optics.

[0046] Advantageously, the second light module can be positioned below the optical axis of the projection optics and the first light module can be positioned above the optical axis of the projection.

[0047] Advantageously, the collector of the first light module is elliptical.

[0048] In the case where the light device is devoid of optical elements arranged in the path of the light emitted by the light source of the first light module, the light source of the first light module may be located at a first focus of the collector and the second focus of the collector may be located near the projection optics, in particular at a distance less than or equal to 10 mm.

[0049] In the case where the lighting device includes a second optical element arranged in the path of the light emitted by the light source of the first lighting module, the collector of the first lighting module may have a first focus at which the light source of said first lighting module is located, and a second focus, the collector being configured so that the virtual image of the second focus by the second optical element is located near the projection optics, in particular at a distance less than or equal to 10 mm.

[0050] These arrangements ensure that a majority of the rays reflected by the collector of the first light module reach the projection optics.

[0051] Advantageously, the collector of the second light module is elliptical.

[0052] Advantageously, the collector of the second light module has a first focus at which the light source of said second light module is located, and a second focus, the collector being configured so that the virtual image of the second focus by the first optical element is located near the projection optics, in particular at a distance less than or equal to 10 mm from the projection optics.

[0053] Advantageously, when the focal point of the projection optics is located at a rear area of ​​the collector, the collector of the first light module is elliptical. For example, the collector of the first light module has a first focus at the level of which the light source of said first light module is located, and a second focus located near the projection optics, and in particular at a distance less than or equal to 10 mm from the projection optics.

[0054] Advantageously, in the case where the lighting device includes the second optical element arranged in the path of the light emitted by the light source of the first lighting module, the collector of the first lighting module is elliptical. For example, the collector of the first lighting module has a first focal point at which the light source of said first lighting module is located, and a second focal point, the collector being configured so that the virtual image of the second focal point formed by the second optical element is located near the projection optics, in particular at a distance less than or equal to 10 mm from the projection optics.

[0055] Advantageously, the light beam emitted by the first light module and projected by the projection optics contributes to the realization of a dipped beam function, and the light beam emitted by the second light module and projected by the projection optics contributes to the realization of a main beam function. Brief description of the figures.

[0056] Other advantages and features of the present invention are now described by means of purely illustrative and in no way limiting examples of the scope of the invention, and from the accompanying drawings, in which the various figures represent:

[0057] [Fig. 1] schematically represents a profile view of a lighting device according to a first embodiment of the invention comprising two lighting modules, an optical element in the form of a prism and a projection optic in the form of a lens.

[0058] [Fig. 2] schematically represents a profile view of a lighting device according to a second embodiment of the invention comprising two lighting modules, two optical elements in the form of a prism and a projection optic in the form of a lens.

[0059] [Fig. 3] schematically represents a profile view of a lighting device according to a variant of the first embodiment of the invention in which the first optical element is in the form of a trapezoid.

[0060] [Fig. 4] schematically represents a profile view of a lighting device according to a variant of the second embodiment of the invention in which the first and second optical elements are in the form of a trapezoid.

[0061] [Fig. 5] schematically represents a perspective view of a light unit comprising three light devices according to the second embodiment illustrated in figure 2.

[0062] In the description that follows, identical elements, by structure or by function, appearing on different figures retain, unless otherwise specified, the same references. Description of a method of implementation.

[0063] In the detailed description that follows, the terms "longitudinal," "transverse," and "vertical" refer to the orientation of a lighting device according to the invention. A longitudinal direction corresponds to the direction of travel of a vehicle equipped with the lighting device, this longitudinal direction being parallel to a longitudinal axis X of an orthonormal coordinate system X, Y, Z illustrated in the figures. This longitudinal direction also corresponds to the direction of the optical axis of the lighting device. A transverse direction corresponds to a direction perpendicular, in a horizontal plane, to the direction of travel of the vehicle equipped with the lighting device, this transverse direction being parallel to a transverse axis Y of the coordinate system X, Y, Z, and this transverse axis Y being perpendicular to the longitudinal axis X.Finally, a vertical direction Z corresponds to a direction parallel to a vertical axis Z of the X, Y, Z coordinate system, this vertical axis V being perpendicular to the longitudinal axis X and to the transverse axis Y.

[0064] Figure 1 shows a lighting device 1 according to a first embodiment comprising two light modules 10, 20 forming a pair of light modules, a first optical element 40 in the form of a prism, and a projection optic in the form of a lens 30. Figure 2 shows a lighting device according to a second embodiment, comprising two light modules 10, 20 forming a pair of light modules, a first optical element 40 in the form of a prism, a second optical element 50 in the form of a prism, and a projection optic in the form of a lens 30, the first and second optical elements forming two separate parts. Figure 3 shows a lighting device according to a variant of the first embodiment in which the first optical element is trapezoidal.Figure 4 represents a lighting device according to a variant of the second embodiment in which the first optical element is trapezoidal, and the second optical element is trapezoidal, the first and second optical elements forming a single piece.

[0065] Figures 1 to 4 show a lighting system 1 of a motor vehicle comprising a first light module 10 and a second light module 20. The first light module 10 is arranged above the second light module 20. Each of the first and second light modules 10, 20 includes a light source 100, 200 capable of emitting light. The light source 100 associated with the first light module 10 is also called the first light source 100, and the light source 200 associated with the second light module 20 is also called the second light source 200.

[0066] The two light sources 100 and 200 are arranged to emit light in the same direction but in opposite directions. In the example shown, the light sources 100 and 200 emit light along the vertical axis Z, but in opposite directions. The first light source 100 emits light upwards, while the second light source 200 emits light downwards.

[0067] Each light module 10, 20 also includes a collector 101, 201 having a reflective surface arranged to collect and reflect the light emitted by the light source 100, 200 associated with it in a light beam. The light beams are reflected along the optical axis 301 of the light device 1. In particular, the collector 101 associated with the first light module 10 is also called the first collector, and the collector 201 associated with the second light module 20 is also called the second collector.

[0068] Each collector 101, 201 of a light module 10, 20 defines a cavity in which the light source 100, 200 of the corresponding light module 10, 20 is mounted. Each light source 100, 200 is positioned directly above the corresponding collector, such that the reflective surface of said collector.

[0069] The light device 1 also includes a first optical element 40 having at least two diopters 400 arranged in the path of the light emitted by the light source 200 of the second light module 20. The diopters 400 of the first optical element 40 are arranged to generate a virtual image 201a of the collector 201 of the second light module 20 and its reflective surface. The virtual image 201a of the reflective surface of the second collector 201 has a rear area positioned at the focal point 300 of the lens 30.

[0070] The first optical element 40 creates a virtual image 201a of the reflective surface of the collector 201 of the second light module 20 associated with it. The lens 30 then images the virtual image 201a of the reflective surface of the second module 20, and not the reflective surface of the second light module 20 itself.

[0071] In figures 1 to 4, the virtual image 201a of the second collector 201 that is created is located higher than the second collector 201. It is understood that in another configuration of the light device, one could imagine that the virtual image of the second collector is located lower than the second collector.

[0072] The first optical element 40 is configured so that the rear area of ​​the virtual image 201a of the reflective surface of the second collector 201 is positioned at the focal point 300 of the lens 30.

[0073] In the first embodiment illustrated in Figure 1, the light device 1 comprises only one optical element, namely the first optical element 40, associated with the second light module 20, and the first light module 10 is not associated with any optical element.

[0074] The focal point 300 of the lens is located in the vicinity of a rear area of ​​the collector 101 of the first light module 10. Thus, the rear area of ​​the collector 101 of the first light module 10, the rear area of ​​the virtual image 201a of the collector 201 of the second light module 20 and the focal point 300 of the lens 30 are positioned substantially in the same place.

[0075] The lens 30 can then project onto the road both the image of the reflective surface of the collector 101 of the first light module 10, and the image of the virtual image 201a of the reflective surface of the collector 201 of the second light module 20.

[0076] Since the virtual image 201a of the reflective surface of the second collector 201 and the reflective surface of the first collector 101 have their back area which are superimposed with the focus 300 of the lens 30, the lens 30 can project a beam of light free of dark areas.

[0077] Furthermore, in this example, the first optical element 40 is a prism. The prism extends in a transverse position, being substantially inclined with respect to the optical axis 301 of the luminous device 1.

[0078] The second embodiment illustrated in Figure 2 differs from the first embodiment in that the light device further comprises a second optical element 50 having at least two diopters 500 arranged on the path of the light emitted by the light source 100 of the first light module 10. The diopters 500 of the second optical element 50 are arranged to generate a virtual image 101a of the reflective surface of the collector 101 of the first light module 10.

[0079] In Figure 2, the virtual image 101a of the first collector 201 which is created is located lower than the first collector 101. It is understood that in another configuration of the light device, one could imagine that the virtual image of the first collector is located higher than the first collector.

[0080] The lighting device 1 illustrated in Figure 2 also differs from that illustrated in Figure 1 in the shape of the first optical element 40. In particular, it can be observed that the first 40 and second 50 optical elements have smaller dimensions than the first optical element 40 used in the first embodiment. This reduces the overall size of the lighting device along the longitudinal direction X.

[0081] In this second embodiment, each optical element 40, 50 is a prism. The prism extends in a transverse position, being substantially inclined with respect to the optical axis 301 of the light device 1. The first 40 and the second 50 optical elements form two separate parts. Alternatively, the first 40 and the second 50 optical elements could form a single, monolithic part.

[0082] The first 40 and the second 50 optical elements are symmetrical with respect to each other with respect to the optical axis 301 of the lens 30.

[0083] In this second embodiment, the focal point 300 of the lens 30 is positioned between the rear edges of the first 101 and the second 201 actual collectors. The first 40 and second 50 optical elements are configured such that the rear areas of the virtual images of the first and second collectors are positioned at the focal point 300 of the lens 30. In other words, the focal point 300 of the lens 30 is then located at a rear area of ​​the virtual image 101a of the reflecting surface of the collector 101 of the first light module 10, and at a rear area of ​​the virtual image 201a of the reflecting surface of the collector 201 of the second light module 20.

[0084] Since lens 30 images the virtual images 101a, 201a of the reflective surfaces of the first and second collectors 101, 201, and these have their rear area which are superimposed with the 300 focus of lens 30, lens 30 can project a beam of light free of dark areas.

[0085] Figure 3 describes a lighting device 1 according to a variant of the first embodiment illustrated in Figure 1. In this variant, only the first optical element 40 is different, as it takes the form of a trapezoid. The trapezoid comprises two diopters 400 having the same orientation. The trapezoid extends in a transverse position, being substantially inclined with respect to the optical axis 301.

[0086] Figure 4 depicts a lighting device 1 according to a variant of the embodiment illustrated in Figure 2. Only the first and second optical elements 40, 50 are different. Indeed, the first and second optical elements 40, 50 are each trapezoidal in shape. In this embodiment, the first 40 and second 50 optical elements form a single component common to both lighting devices 10, 20. Alternatively, they could form two separate components.

[0087] Figure 5 shows a light unit comprising three light devices according to the second embodiment. It should be understood that the light unit could have comprised a different number of light devices, and that each of the light devices could also have been taken from the first embodiment or from variants of the first and second embodiments. Thus, it is possible for a light unit to comprise all identical light devices, or light devices following several embodiments and / or variants.

[0088] The light devices 1 are juxtaposed along the transverse direction. The lenses of the light devices are aligned along the longitudinal direction, and juxtaposed along the transverse direction so as to form a single monobloc optical element.

[0089] In this example, the first and second light modules 10, 20 of the central light device are offset along the longitudinal direction relative to the first and second light modules of the lateral light devices. In particular, the collectors 101, 201 and the first and second optical elements 40, 50 of the central light device are located closer to the lens 30 of the central light device than are the collectors 101, 201 and the first and second optical elements 40, 50 of the lateral light devices to the lens 3 of the corresponding lateral light device.

[0090] In addition, the first and second collectors 101, 201 of the central lighting device have a plurality of cavities, each cavity being associated with a light source.

[0091] The preceding description clearly explains how the invention achieves its objectives, namely, to provide a lighting device comprising at least two light modules, each with a collector and a common lens whose illuminated appearance creates a homogeneous light signature regardless of which two light modules are activated, by providing a lighting device comprising two opposing light modules, each with a collector and a light source, and a lens common to both light modules, and whose illuminated aspect makes it possible to create a homogeneous light signature regardless of which one or both light modules are activated.

[0092] In any event, the invention cannot be limited to the embodiments specifically described in this document, and extends in particular to all equivalent means and to any technically operative combination of these means.

Claims

Demands

1. A lighting device (1) for a motor vehicle comprising: a) at least a first (10) and a second (20) light modules, the light modules (10; 20) each comprising a light source (100; 200) capable of emitting light and a collector (101; 201) comprising a reflective surface arranged to collect and reflect the light emitted by said corresponding light sources (100; 200) into a light beam, the two light sources (100; 200) being arranged to emit light in opposite directions; b) a projection optic (30) common to said light modules (10; 20), arranged to project the light beams reflected by the collectors (101; 201) of the light modules (10; 20), said projection optic (30) comprising a focal point (300);(c) a first optical element (40) comprising at least two diopters (400) arranged in the path of the light emitted by the light source (200) of the second light module (20), the diopters (400) of the first optical element (40) being arranged to generate a virtual image (201a) of the reflective surface of the collector (201) of the second light module (20), said virtual image (201a) of the reflective surface of the collector (201) of the second light module (20) comprising a rear area positioned at the focal point (300) of the projection optics (30);the focus of the projection optic (30) being located at the level of a rear area of ​​the collector (101) of the first light module (10), or the light device (1) comprising a second optical element (50) having at least two diopters (500) arranged in the path of the light emitted by the light source (100) of the first light module (10), the diopters (500) of the second optical element (50) being arranged to generate a virtual image (101a) of the reflective surface of the collector (101) of the first light module (10), said virtual image (101a) of the reflective surface of the collector (101) of the first light module (10) having a rear area positioned at the focus (300) of the projection optic (30).

2. A light device according to claim 1 in which the projection optics (30) comprise a lens.

3. A light device according to claim 1 in which the projection optics (30) comprise at least one mirror.

4. A light device (1) according to any one of the preceding claims in which the two collectors (101; 201) are oriented in opposite directions.

5. A light device (1) according to any one of the preceding claims, wherein the light source (100) of the first module (10) and the light source (200) of the second module (20) are arranged on two opposite faces of the same support.

6. A lighting device (1) according to any one of the preceding claims characterized in that the first optical element (40) is a prism or a trapezoid and / or, where the lighting device comprises a second optical element (50), in that the second optical element (50) is a prism or a trapezoid.

7. Light device (1) according to any one of claims 1 to 6 wherein the first (40) and second (50) optical elements are symmetrical with respect to each other with respect to an optical axis (301) of the projection optics (30).

8. Light device (1) according to any one of the preceding claims wherein the second light module (20) is positioned below the optical axis (301) of the projection optics (30).

9. Light device (1) according to any one of the preceding claims wherein the collector of the second light module is elliptical and has a first focus at which the light source of said second light module is disposed, and a second focus, the collector being configured so that the virtual image of the second focus by the first optical element is located near the projection optic (30).

10. A light device (1) according to any one of the preceding claims wherein the light beam emitted by the first light module and projected by the projection optics participates in the realization of a dipped beam function, and wherein the light beam emitted by the second light module and projected by the projection optics participates in the realization of a main beam function.

Images