Device for projecting a light representation on board a vehicle

Abstract

The invention relates to a lighting device (100a) for a vehicle, the lighting device comprising a light source (98) and an optical system (99) associated with the light source, the light source and the optical system being configured to project a light representation onto a surface of an environment of the vehicle. Specifically, the lighting device comprises a heat sink (10) comprising a shell (101) provided with a flange (102) and configured to receive the light source and the optical system, a support wall (11) able to be attached to the vehicle and configured to receive the heat sink, connection means arranged between the flange and the support wall in order to mount the heat sink in a tilting manner so as to allow an angle of inclination of the flange relative to the support to be modified, and adjustment means arranged between the support wall and the flange, the adjustment means being configured to modify the angle of inclination of the flange relative to the support.

Description

A device for projecting light representations, mounted in a vehicle.

[0001] The present invention relates to a lighting device for a vehicle, more particularly a device for projecting a luminous representation of a vehicle. Technological background

[0002] The lighting systems of motor vehicles today fulfill several functions, such as illuminating and / or defining a vehicle's light signature. Among these lighting systems, some are used to project light patterns around the vehicle they are mounted on.

[0003] Thus, there are devices installed in vehicles that project a logo, personalized welcome messages, or designs, for example, linked to a vehicle door and projecting a logo onto the ground in front of that door when the vehicle is unlocked and / or when the door is opened. Such devices are installed, for example, in the door itself, in a rearview mirror connected to the door, or even in a rocker panel near the door.

[0004] There are also devices installed in vehicles that provide an extended signaling function for a direction indicator or reversing light, such a device projecting a light pattern onto the ground when the direction indicator or reversing light is activated.

[0005] These light projection devices, hereafter referred to as lighting devices, add a touch of personalization and style to the vehicle, while also providing a practical function for illuminating the ground around the vehicle in the dark. Such lighting devices are integrated, for example, into the exterior silhouette of a vehicle. These lighting devices generally include numerous components, including a light source, an electronic circuit board, optical elements capable of guiding light beams, and decorative elements such as a styling mask.

[0006] These lighting devices must meet several requirements, including robustness, compactness, lightness, aesthetics, cost-effectiveness, and maintainability. Furthermore, to achieve a satisfactory level of quality in the projection, which is largely dependent on the projected dimensions, such a device must be properly adjusted, particularly in relation to the projection surface surrounding the vehicle with which it is connected.

[0007] Additionally, lighting systems must be repairable to meet environmental requirements. Therefore, it is necessary to make the various components of such a lighting system accessible so that they can be analyzed, repaired, and / or replaced when defective, thus preserving as many of the functional components as possible. Furthermore, such a lighting system must be easily disassembled, and fragile components readily accessible, while conversely, the functional mounting and / or assembly elements must be discreet for aesthetic reasons. Their design and integration into a vehicle is therefore complex, as it must meet all these requirements, whether functional, aesthetic, or related to the maintenance of the lighting system. Summary of the present invention

[0008] The present invention overcomes the technological background problems described above by designing a lighting device that integrates into different vehicles without revealing the assembly means and allows adjustment of the lighting device while facilitating its maintenance.

[0009] In the case of an extended function as presented above, the present invention facilitates the integration of this function into an existing lighting assembly such as a lighthouse or a beacon, and the replacement of a device fulfilling this extended function.

[0010]

[0011] To this end, the invention relates firstly to a vehicle lighting device, comprising a light source and an optical system associated with the light source, the light source and the optical system being configured to project a luminous representation onto a surface of the vehicle's environment, the lighting device being characterized in that it comprises: - a radiator comprising a shell with a flange, the shell being configured to receive the light source and the optical system, - a support wall suitable for being fixed to the vehicle and configured to receive the radiator, - connecting means arranged between the flange and the support wall and configured to tilt the radiator along a first axis relative to the support wall, so as to allow a change in the angle of inclination of the flange relative to the support wall,- adjustment means arranged between the support wall and the collar and configured to modify the angle of inclination of the collar relative to the support wall.

[0012] Such a lighting device allows the orientation of the light projection to be adjusted in relation to the support of the lighting device, and thus the light projection can be adjusted to improve the quality of its rendering.

[0013] In an advantageous embodiment, the support wall includes an opening configured to allow the passage of the shell so that the collar is positioned juxtaposed to the support wall. The connecting means comprise two bosses arranged on one of the faces opposite the support wall and the collar, and which make contact at two points on the other face opposite the support wall and the collar. These two points of contact between the support wall and the collar define the first axis around which the collar pivots relative to the support wall. The pivot joint around the first axis is thus defined using simple and robust shapes without requiring the use of additional components or fragile shapes such as a cylindrical axis. The number of components in the lighting device is therefore limited.

[0014] According to an advantageous embodiment, the two bosses are arranged on the supporting wall.

[0015] In an advantageous embodiment, the lighting device includes fastening means configured to maintain the collar in contact with the support wall at the contact points. The lighting device is thus held assembled using fastening means adapted to the relative movement between these two components.

[0016] According to an advantageous embodiment, the fixing means comprise two screws configured to screw into two corresponding threaded holes defined on the support wall according to the two points of contact, the collar comprising two through holes also defined according to the two points of contact, the fixing means comprising two spacers dimensioned to be placed respectively in the through holes and to receive respectively the screws which come against a bearing surface of these spacers so as to delimit the stopping position of the screws relative to the collar when they are screwed into the support wall, the collar comprising an external face provided with two second bosses arranged at the level of the through holes, the screws each comprising a head, the underside of the heads of the screws coming into contact at two points on the second bosses when screwing these screws into the support wall until they reach said stop.The pivot joint between these two components is thus controlled and has a degree of freedom defined by the spacers. Indeed, the spacers stop the screws during tightening before they exert excessive pressure on the flange, thereby guaranteeing the flange's freedom of movement relative to the support.

[0017] In an advantageous embodiment, the lighting device includes a sealing gasket configured to conform to the contour of the opening and the external contour of the housing. The lighting device can thus be installed in humid and / or dusty environments, particularly when the support is part of a wall of an enclosed assembly.

[0018] In an advantageous embodiment, the sealing gasket is a radial gasket comprising at least one lip. This type of gasket is very common and easy to develop and industrialize.

[0019] According to an advantageous embodiment, the orifice is oblong in shape.

[0020] In an advantageous embodiment, the adjustment means comprise a rod, a threaded portion of which is mounted in a tapped hole arranged on the flange, one end of the rod being mounted in a ball joint arranged on the support wall, the adjustment means being arranged away from the first axis. It is thus easy to adjust the inclination of the flange relative to the support by rotating the rod.

[0021] In an advantageous embodiment, the ball joint comprises a receiving piece with a housing and a spherical piece, the receiving piece being arranged on the support wall and the spherical piece being arranged at one end of the rod, the housing being configured to receive and retain the spherical piece, while allowing it to rotate freely within said housing. The rod is thus free to rotate about its axis and blocked against translation along the same axis.

[0022] According to an advantageous embodiment, the receiving piece is anchored in a cavity in the supporting wall.

[0023] According to an advantageous embodiment, the angle of inclination of the radiator relative to the support wall can vary from an angle between -2.5° and +2.5°.

[0024] The invention also relates to a vehicle headlight incorporating a lighting device having at least one of the characteristics described above, the lighting device being configured to project a luminous representation onto a surface in the vehicle's environment.

[0025] According to an advantageous embodiment of the lighthouse, a support wall for the lighting device is integrated into a lighthouse casing.

[0026] The invention also relates to a vehicle equipped with a lighting device having at least one of the characteristics described above, the lighting device being configured to project a luminous representation onto a surface in the environment of the vehicle.

[0027] Thus, thanks to all the functional and structural technical features of the present invention, a lighting device is available that is suitable for various operating conditions, particularly in humid or dusty environments. The angle of the light projection relative to the support, and therefore relative to the vehicle carrying the lighting device, is easily adjustable. The lighting device is also easily removable, facilitating maintenance. Brief description of the figures

[0028] Other features and advantages of the present invention will become apparent from the description below, with reference to the attached Figures 1 to 6, which illustrate various embodiments without being limiting in any way and in which: - a represents a perspective view from a first point of view of a lighting device according to the present invention, according to an embodiment; - a represents a perspective view from a second point of view of the lighting device, according to an embodiment; - a represents an exploded view from the first point of view of the lighting device, according to an embodiment; - a represents a detail view of the lighting device, according to an embodiment; - a represents a cross-sectional view of the lighting device, according to an embodiment; and - a represents a vehicle carrying a lighting device according to the present invention. Description of examples of achievements

[0029] An example of a lighting device will now be described with reference to Figures 1 to 6. According to this example, the lighting device is designed to project a luminous representation onto a surface in the vehicle's environment, the vehicle being, for example, a car. The luminous representation can, for example, project a logo or emblem associated with the vehicle or selected by a user onto the ground. This lighting device is, for example, intended to be assembled in a vehicle's headlight to project the luminous representation onto the ground, in front of or behind the vehicle. However, the invention is not limited to this particular embodiment and extends to any lighting device that can project a luminous representation onto a surface in the vehicle's environment, for example, from a door or a rearview mirror.

[0030] The lighting device allows the inclination of a light beam to be adjusted to project the graphic representation in order to adapt this angle of inclination to the position of the vehicle and to the relative position of the lighting device installed in the vehicle.

[0031] The lighting system also facilitates its disassembly and access to replaceable parts such as a light source or optical system, while ensuring the device remains watertight.

[0032] Figures 1 to 5 represent a lighting device 100a configured to project a luminous representation onto a surface of an environment of a vehicle carrying the lighting device 100a according to an example embodiment.

[0033] The lighting device 100a comprises a light source 98 and an optical system 99 associated with the light source 98. The light source 98 and the optical system 99 are configured to project a luminous representation onto a surface within the environment of a vehicle carrying the lighting device 100a, the light source 98 generating a plurality of light beams. Such a light source 98 is, for example, monochrome and thus produces a monochrome luminous representation. In a variant, the light source is polychrome and therefore projects a colored luminous representation. Along the path of the light beams emitted by the light source 98, i.e., between the light source 98 and the optical system 99 or at the output of the optical system 99, a filter is placed, for example, which allows a portion of the light beams to pass through and blocks a portion.In one variation, the filter allows certain light beams to pass through or partially blocks them. The light beams that pass through the filter, either fully or partially, then generate the light representation, with the shadow areas of the light representation corresponding to the light beams blocked by the filter. The light representation is thus monochrome with varying intensity levels or polychromatic. In yet another variation, the filter allows certain wavelengths to pass through, thus generating a polychromatic light representation if the light source 98 generates beams comprising several wavelengths, for example, with emitted white light, or if the light source 98 alternately generates different light beams, each comprising one or more wavelengths.

[0034] The light source 98 includes, for example, an electronic board 98a or printed circuit board (PCB) on which is arranged an assembly of at least one light-emitting diode, known as an LED (Light-Emitting Diode). Each assembly of at least one LED is configured so that the emitted light, i.e., light beams of the plurality of light beams, is directed towards the optical system 99. According to other embodiments, the light source includes a light emitter such as a halogen bulb or a laser.

[0035] The light source 98 is controlled, for example, to generate the light display only when the vehicle equipped with the light device 100a is stationary and / or when its engine is off. The light source 98 is connected to a vehicle control unit, for example, a control unit responsible for the vehicle's lighting. For this purpose, as illustrated in Figure 1, the light source 98 is, for example, associated with an electronic board 98a on which a connector 98c is located. This connector is configured to receive an additional connector that is connected to the control unit via a wiring harness.

[0036] The optical system 99, as shown, comprises several lenses. However, the invention is not limited to this example of an optical system but extends to any optical system comprising at least one lens and / or at least one reflector, that is, to an optical system comprising a lens, a reflector, or a combination of these elements. According to a particular embodiment, the at least one lens has a defined focal length such as to project the light representation distinctly at a defined distance, relative to the distance separating the light source 100a from the projection surface, for example, the ground. Thus, the focal length of the optical system, and therefore of each lens composing it, is determined as a function of this distance separating the light source 100a from the projection surface and as a function of the distance separating the light source 98 from the optical system 99.The optical axis of the light system is also oriented according to the projection surface, the optical axis defining the direction in which the light beams are projected.

[0037] The lighting device 100a also includes a heat sink 10 comprising a shell 101 with a collar 102, the shell 101 being configured to receive the light source 98 and the optical system 99. In the case where the light source 98 is associated with an electronic board 98a, the latter is, for example, glued and / or crimped onto a flat surface of the shell 101. The shell 101 then recovers the heat generated by the light source 98 when it is in operation, the heat sink 10 then serving to transport the heat generated by the light source 98 to exchange it with the ambient air, in other words, the heat sink 10 makes it possible to dissipate the heat produced by the light source 98 and thus cool it, thereby ensuring the correct operating temperature of the light source 98.

[0038] According to a particular embodiment, the radiator 10 includes fins 101a. These fins 101a maximize the exchange surface between the radiator and the ambient air, thus promoting the evacuation of heat, i.e. promoting the cooling of the light source 98.

[0039] The lighting device 100a also includes a support wall 11 configured to receive the radiator 10. Such a support wall 11 is, for example, part of a headlight or projector housing; that is, the support wall 11 is integrated into one of the walls of the headlight housing, for example, the rear part of the headlight. The rear part of the headlight is accessible, for example, from the vehicle's engine compartment if it is a front headlight, or from the vehicle's trunk if it is a rear headlight. This rear part is thus not visible from outside the vehicle, houses technical components such as connectors, bulb holders, or electronic circuits, and is accessible during maintenance.According to another particular embodiment, the support wall 11 is part of the wall of a closed compartment equipped with a transparent or glazed window through which the light rays exiting the optical system 99 are diffused, the light device 100a then being integrated into a door or a lower body of the vehicle for example.

[0040] The example illustrated herein shows a support wall 11 comprising an opening 110 configured to allow the passage of the shell 101 so as to position the collar 102 juxtaposed to the support wall 11. A dimensional clearance is defined between the shell 101 and the opening 110, allowing easy insertion of the shell 101 into the opening 110 while also allowing some mobility to the shell 101. Optionally, to ensure a seal between the shell 101 and the support wall 11, a sealing gasket 14 configured to follow a contour of the opening 110 and an external contour of the shell 101 is placed between the support wall 11 and the shell 101 at the opening 110.Thus, when the support wall 11 is part of a closed device, the assembly comprising the closed device and the light device 100a is both dustproof and watertight, thereby allowing the light device 100a to be used in environments requiring this type of sealing. Furthermore, the light source 98 and the optical system 99 are protected from external elements because they are positioned inside the light device 100a.

[0041] In a specific embodiment, the sealing gasket 14 is a radial gasket comprising at least one lip. Such a gasket is common and easy to manufacture. It is particularly important to conform to a shape with a continuous curve and no sharp angles for this type of gasket to be effective. Thus, the orifice 110, for example, has a shape suitable for this type of gasket, being circular or oblong. The sealing gasket 14 is, for example, inserted into a groove 110a and butted against a shoulder 110b so as to be blocked in translation within the groove, even when the shell 101 is inserted in the center of the gasket, which is then compressed between the shell 101 and the support wall 11. Conversely, the sealing gasket 14 is blocked in translation by the collar 102; it is therefore captive once the radiator 10 is in position relative to the support wall 11. To guarantee long-term sealing, the number of lips is, for example, three.

[0042] The lighting device 100a also includes connecting means arranged between the collar 102 and the support wall 11 and configured to tilt the radiator 10 relative to the support wall 11 about a first axis A1, so as to allow a change in the angle of inclination of the collar 102 relative to the support wall 11. The connecting means include, for example, two bosses arranged on one of the faces opposite the support wall 11 and the collar 102 and which come into contact at two points on the other of the faces opposite the support wall 11 and the collar 102, the two points of contact between the support wall 11 and the collar 102 defining the first axis A1 about which the collar 102 tilts relative to the support wall 11.The two points of contact are for example positioned symmetrically with respect to a plane of symmetry of the orifice 110 and / or on either side of the orifice 110, the first axis A1 being for example parallel to a median plane of the orifice 110.

[0043] According to the particular embodiment illustrated in the figure, the two bosses 111 are arranged on the support wall 11. The two bosses 111 have a convex external surface on which rolls the collar 102 which has a flat bearing surface, the instantaneous center of rotation of the collar 102 with respect to the support wall being the first axis A1.

[0044] To ensure that the flange 102 remains attached to the support wall 11, the lighting device 100a includes fastening means configured to maintain the flange 102 in contact with the support wall 11 at the points of contact. As illustrated in Figures 3 and 4, such fastening means are two screws 97 configured to be screwed into two corresponding threaded holes 112 defined on the support wall 11 at the two points of contact. The flange 102 includes two through holes 103 also defined at the two points of contact. The fastening means include two spacers 113 dimensioned to be placed respectively in the through holes 103 and to receive the screws 97. The screws 97 abut against a bearing surface, the upper surface, of these spacers 113 so as to define the stopping position of the screws 97 relative to the flange 102 when they are tightened. in the support wall 11.The collar 102 comprises an outer face with two secondary bosses 104 arranged at the level of the through holes 103. The screws 97 each have a head, and the underside of the screw heads 97 make contact at two points on the secondary bosses 104 when these screws 97 are screwed into the support wall 11 until they reach the stop. A thickness of material of the collar 102 is then held between the bearing surface of the boss 111 and the underside of the screw head, forming two bearing surfaces between which the collar 102 rolls. The spacers prevent the screws 97 from exerting pressure on the collar 102 and hindering, or even preventing, its movement relative to the support wall 11.According to another particular embodiment not illustrated, such fixing means are clips made in the support wall 11 at the level of each boss 111 configured to pass through the two through holes 103 defined in the collar 102 and bear against the external face of the collar 102, this external face being provided with two second bosses 104 arranged at the level of the through holes 103.

[0045] To adjust the relative inclination of the flange 102 with respect to the support wall 11, the lighting device 100a also includes adjustment means arranged between the support wall 11 and the flange 102 and configured to change the angle of inclination of the flange 102 with respect to the support wall 11. For example, the adjustment means include a rod 12 extending along a second axis A2, a threaded portion 12a of which is mounted in a tapped hole 105 arranged on the flange 102 to obtain a screw / nut type connection. One end of the rod 12 is mounted in a ball joint arranged on the support wall 11, the adjustment means being arranged away from the first axis A1.Indeed, the distance of the adjustment means allows a lever arm to be created and thus the collar 102 to be rotated relative to the support wall 11, the rotation of the rod 12 around the second axis A2 generating a relative translation of the collar 102 relative to the rod 12 which cannot translate along the second axis A2, the rod 12 being blocked by the ball joint. The ball joint connecting member comprises, for example, a receiving piece 13 provided with a housing 131 and a spherical piece 12b, the receiving piece 13 being arranged on the support wall 11 and the spherical piece being arranged at one end of the rod 12, the housing 131 being configured to receive and retain the spherical piece 12b, while leaving it free to rotate in the housing 131. According to this particular embodiment, the angle of inclination of the radiator 10 with respect to the support wall 11 can vary from an angle between -2.5° and +2.5°.It should be noted that in the presence of a sealing gasket 14, it deforms to accommodate deformations resulting from the relative movement of the radiator 10 with respect to the support wall 11. It is therefore important to properly dimension the previously described dimensional clearance in order to ensure that the sealing gasket 14 does not damage it.

[0046] According to the particular embodiment illustrated in the figure, the receiving piece 13 is anchored in a cavity 114 of the support wall 11. The receiving piece 13 comprises, for example, circular fins 13a whose external diameter is greater than an internal diameter of the cavity 114. Optionally, at least one deformable washer 13c, also called a clip or staple, is inserted between the circular fins 13a, the deformable washer 13c being, for example, made of steel. When the receiving piece 13 is inserted into the cavity 114 with, where applicable, one or more deformable washers, the circular fins and the deformable washers deform into an overall conical shape, their external diameter conforming to the internal diameter of the cavity 114.The circular fins and deformable washers then allow the receiving piece 13 to be anchored in the cavity 114, preventing any return movement; that is to say, the receiving piece 13 is permanently trapped in the cavity 114, a pulling force of the receiving piece 13 towards the outside of the cavity 114 embedding the fins and deformable washers in the cavity 114. According to another particular embodiment not shown, the receiving piece 13 belongs to the support wall 11.

[0047] The spherical part 12b, also called the ball joint, is clipped into the housing 131, the internal space of which allows the free rotation of the ball joint 12b. The entry section of this housing is smaller than the diameter of the spherical part 12b, and is flexible enough to allow the spherical part 12b to pass through when a force is applied, then to hold it in the housing 131. Thus, the spherical part 12b is trapped in the housing 131, which belongs to the receiving part 13, itself trapped in the support wall 11. Consequently, the spherical part 12b cannot translate relative to the support wall 12 and can only pivot within its housing 131, particularly around the second axis A2.

[0048] According to the particular embodiment illustrated in figures 3 and 5, the rod 12 includes at its end opposite the spherical part 12b a hexagonal head 12c allowing it to be operated manually using a tool, for example by means of a six-sided socket.

[0049] According to other particular embodiments, the adjustment means arranged between the support wall 11 and the flange 102 include a jack anchored at one end in the support wall 11 and at the other end in the flange 102, or a cam allowing adjustment of a gap between a part of the flange 102 and the support wall 11, the cam being for example fixed on the flange 102 and free to rotate about an axis relative to the flange 102, the cam having a variable thickness and bearing against a part of the support wall 12.

[0050] In one variant, the adjustment means are motorized, for example by means of an electric motor. The motor is then directly connected to the rod 12 or via a gearbox. The motorization makes it possible, in particular, to adjust the angle of inclination of the radiator 10 supporting the light source 98 and the optical system 99 according to the attitude of the vehicle carrying the lighting device 100a.

[0051] The lighting system comprises a heat sink and an adjustment mechanism that orients the tilt of the projection axis of the lighting system relative to the vehicle's mounting surface. This tilt adjustment allows the lighting system to be adapted to numerous configurations by adjusting the angle of the heat sink relative to the mounting surface to achieve the desired graphic representation, particularly in terms of size and proportions. The ability to install the lighting system on a wide range of vehicles allows, for example, the standardization of many of its components and provides a quick technical solution for integration into new vehicles. Furthermore, the lighting system comprises few parts, each with simple and easily assembled shapes.Indeed, the assembly of the 100a lighting system in Figures 1 to 5 includes, for example, the following steps.

[0052] In a first step, the sealing gasket 14 is placed in the groove 110a of the orifice 110 and brought against the shoulder 110b.

[0053] In a second step, the receiving piece 13 is inserted into the housing 114 of the support wall 11.

[0054] In a third step, the rod 12 is inserted and screwed, for example halfway between the threaded part 12a and the threaded hole 105 of the collar 102 of the support 10.

[0055] In a fourth step, the support 10 is positioned relative to the support wall 11, the shell is passed through the orifice 110 and crushes the sealing gasket 14 until the collar 102 meets the bosses 111. During this operation, the spherical part 12b of the rod 12 is inserted into the housing 131.

[0056] In a fifth step, the screws 97 serving as means of fixing are inserted through the through holes 103 and screwed into the threads 112 until they stop.

[0057] In a sixth operation, the angle of inclination of the radiator 10 relative to the support wall 11 is adjusted, for example manually by an operator.

[0058] This design of the lighting system facilitates its maintenance. Indeed, it is easy to disassemble and access the various components, including the light source and the optical system. The limited number of parts composing this lighting system also reduces its manufacturing cost and improves the availability of its components.

[0059] Laillustre un véhicule 100 embracing a lighting device 100a as presented above, for example according to the first embodiment, the lighting device 100a being configured to project a luminous representation 100b onto a surface of the vehicle's environment.

[0060] The light device 100a is for example installed in a headlight of the vehicle 100 and is configured to project a light representation 100b onto a ground surface outside the vehicle 100.

[0061] The invention is not limited to this configuration, however, but extends to any vehicle or vehicle headlight equipped with the light projection device presented above.

[0062] It should be noted that this detailed description relates to a particular embodiment of the present invention, but in no way does this description limit the scope of the invention; on the contrary, its purpose is to remove any possible inaccuracy or misinterpretation of the following claims.

[0063] It should also be noted that the reference signs placed in parentheses in the following claims are in no way intended to be limiting; these signs are solely intended to improve the intelligibility and understanding of the following claims and the scope of the protection sought.

Claims

A lighting device (100a) of a vehicle (100), comprising a light source (98) and an optical system (99) associated with the light source, the light source (98) and the optical system (99) being configured to project a luminous representation onto a surface of the vehicle's environment, said lighting device being characterized in that it comprises: - a radiator (10) comprising a housing (101) equipped with a flange (102), the housing (101) being configured to receive the light source (98) and the optical system (99), - a support wall (11) configured to receive the radiator (10), - connecting means arranged between the flange (102) and the support wall (11) and configured to tilt the radiator (10) about a first axis (A1) relative to the support wall (11), so as to allow a change in the angle of inclination of the flange (102) with respect to to the support wall (11),- adjustment means arranged between the support wall (11) and the collar (102) and configured to modify the angle of inclination of the collar (102) relative to the support wall (11). A lighting device (100a) according to claim 1, in which the support wall (11) includes an opening (110) configured to allow the passage of the shell (101) so as to place the collar (102) in a manner juxtaposed to the support wall (11), the connecting means comprising two bosses which are arranged on one of the faces facing the support wall (11) and the collar (102) and which come into contact at two points on the other of the faces facing the support wall (11) and the collar (102), the two points of contact between the support wall (11) and the collar (102) defining the first axis (A1) around which the collar (102) pivots relative to the support wall (11). Light device (100a) according to claim 2, wherein the two bosses (111) are arranged on the support wall. A lighting device (100a) according to any one of claims 2 or 3, which includes fastening means configured to maintain the collar in contact with the support wall (11) according to said contact points. A lighting device (100a) according to claim 4, wherein the fastening means comprise two screws (97) configured to be screwed into two corresponding threaded holes (112) defined on the support wall (11) at the two points of contact, the flange (102) comprising two through holes (103) also defined at the two points of contact, the fastening means comprising two spacers (113) dimensioned to be placed respectively in the through holes (103) and to receive respectively the screws (97) which abut against a bearing surface of these spacers (113) so as to delimit the stopping position of the screws (97) relative to the flange (102) when they are screwed into the support wall (11), the flange (102) comprising an outer face provided with two second bosses (104) arranged at the through holes (103), the screws (97) each comprising a head,the underside of the screw heads (97) making contact at two points on the second bosses (104) when these screws (97) are screwed into the support wall (11) until they reach said stop. A lighting device (100a) according to any one of claims 2 to 5, which includes a sealing gasket (14) configured to fit a contour of the orifice and an external contour of the shell. Light-emitting device (100a) according to claim 6, wherein the sealing gasket (14) is a radial gasket comprising at least one lip. A luminous device (100a) according to any one of claims 2 to 7, wherein the orifice (110) is oblong in shape. A lighting device (100a) according to any one of claims 1 to 8, in which the adjustment means comprise a rod (12) having a threaded portion (12a) mounted in a tapped hole (105) arranged on the collar (102), one end of the rod (12) being mounted in a ball joint connecting member arranged on the support wall (11), said adjustment means being arranged away from the first axis (A1). A lighting device (100a) according to claim 9, in which the ball joint member comprises a receiving piece (13) provided with a housing (131) and a spherical piece (12b), the receiving piece (13) being arranged on the support wall (11) and the spherical piece being arranged at one end of the rod (12), the housing (131) being configured to receive and retain the spherical piece (12b), while leaving it free to rotate in said housing (131). Light device (100a) according to claim 10, wherein the receiving piece (13) is anchored in a cavity (114) of the support wall (11). Lighting device (100a) according to any one of claims 1 to 11, wherein the angle of inclination of the radiator (10) with respect to the support wall (11) can vary from an angle between -2.5° and +2.5°. Headlight of a vehicle (100), which incorporates a light device (100a) having the characteristics of any one of claims 1 to 12, said light device (100a) being configured to project a light representation (100b) onto a ground surface outside the vehicle (100). Headlight of a vehicle (100) according to claim 13, wherein a support wall (11) of said light device (100a) is integrated into a housing of said headlight. Vehicle (100) equipped with a lighting device (100a) having the characteristics of any one of claims 1 to 12 or of a headlight according to claim 13 or 14.

Images