Lighting module for motor vehicle comprising articulated connection element

Abstract

The invention relates to a lighting module (1) comprising: an optical projection element (20) which makes it possible to project a light beam (F1); and two connecting elements (41, 42) configured and hinged to allow the light beam (F1) to move in a first direction (Y) and a second direction (Z) orthogonal to the first direction (Y), the optical projection element (20) remaining stationary. The invention also relates to a lighting device comprising a mounting element (50) and at least two lighting modules (1a, 1b) according to the invention attached to the mounting element (50).

Description

[0001] The present invention relates to a lighting module for a motor vehicle. The present invention particularly relates to a lighting module that makes it possible to form a light beam and to move the light beam in a first direction and in a second direction orthogonal to the first direction. The present invention also relates to a motor vehicle lighting device that includes a mounting element and at least two lighting modules according to the present invention attached to the mounting element. The mounting element makes it possible to transmit a first movement and a second movement to the lighting modules so that the light beam generated by each lighting module moves in the first direction and in the second direction.

[0002] In the field of motor vehicles, a lighting module for a vehicle known to those skilled in the art includes:

[0003] - a lighting unit that includes at least one light source configured to emit light rays and at least one light collector associated with the at least one light source,

[0004] - an optical projection element, the light collector being configured to collect the light rays emitted by the at least one light source and to direct the light rays towards the optical projection element, the optical projection element being configured to project the light rays towards the outside of the vehicle to form a light beam.

[0005] The lighting module is intended to be integrated into a lighting device (such as a motor vehicle headlight). The lighting device generally includes one or more masks that are positioned close to the lighting module, in particular, for example, around the optical projection element. These masks are shaping elements that allow certain parts of the lighting module (such as the light collector) to be shielded from being seen by an external observer.

[0006] In order to be able to adapt the light beam formed by the lighting module to the motor vehicle on which the lighting device including the lighting module is mounted and to the traffic conditions, the lighting module can be moved in a way that allows the light beam to move horizontally and / or vertically. The vertical movement of the light beam is particularly useful to take into account body defects related to manufacturing tolerances or to take into account the attitude of the vehicle, which varies depending on the type of vehicle and the vehicle load. The light beam can, for example, be lowered to avoid dazzling the occupants of oncoming vehicles. The horizontal movement of the light beam can be used to adjust the position of the light beam formed by the lighting module relative to the median longitudinal axis of the vehicle, for example, to compensate for body defects. When two lighting modules are arranged in the lighting device, the horizontal movement of the light beam is also useful. Specifically, it is then necessary to adjust the two lighting modules relative to each other to ensure good alignment of the light beams formed by each of the lighting modules relative to each other and relative to the median longitudinal axis of the vehicle.

[0007] When the light-emitting module moves to adjust the light beam, all the parts constituting the light-emitting module (i.e., in particular, the at least one light source, the at least one light collector, and the at least one optical projection element) are mobilized.

[0008] Conversely, the (multiple) masks arranged close to the light-emitting module are stationary when the light-emitting module moves. Therefore, it is necessary to provide a sufficient gap between the (multiple) masks and the light-emitting module so that the light-emitting module does not hit the (multiple) masks when moving.

[0009] Against this background, the present invention aims to propose a light-emitting module for a motor vehicle that provides a solution to the above-mentioned drawbacks. In particular, the present invention proposes a light-emitting module for a motor vehicle that moves the light beam formed thereby while minimizing the necessary gap between the light-emitting module and the mask arranged close to the light-emitting module, in particular close to the optical projection element.

[0010] To this end, the present invention proposes a light-emitting module for a motor vehicle, the light-emitting module comprising:

[0011] * A light-emitting unit, the light-emitting unit comprising:

[0012] - At least one light source configured to emit light rays;

[0013] - At least one light collector associated with the at least one light source,

[0014] * An optical projection element having an optical axis, the light collector being configured to collect the light rays emitted by the at least one light source and direct the light rays towards the optical projection element, the optical projection element being configured to project the light rays towards the outside of the vehicle to form a light beam,

[0015] * A support, the optical projection element being fixedly mounted on the support;

[0016] * Two connecting elements, each connecting element being connected on the one hand to the light-emitting unit and on the other hand to the support, each connecting element being configured and articulated to allow a first movement of the light-emitting unit relative to the optical projection element, the first movement allowing the light beam to move in a first direction orthogonal to the optical axis of the optical projection element, and allowing a second movement of the light-emitting unit relative to the optical projection element, the second movement allowing the light beam to move in a second direction orthogonal to the optical axis of the optical projection element and orthogonal to the first orthogonal direction.

[0017] Thus, by moving the light-emitting unit relative to the optical projection element, the light beam can be moved. Therefore, after the light-emitting module is installed on the vehicle, the position of the light beam can be adjusted so that the light beam is adapted to the vehicle.

[0018] Furthermore, since the optical projection element is fixedly mounted on the support of the module, and since the light-emitting unit and the connecting element are movable relative to the optical projection element, this means that the light-emitting unit and the connecting element are movably arranged relative to the support. Due to the articulation of the connecting element, the light-emitting unit can be moved without moving the optical projection element. This articulation of the connecting element enables the light-emitting unit to be moved relative to the support only, while the optical projection element remains fixed on the support, or in other words, during the first movement and the second movement, the optical projection element remains stationary relative to the support.

[0019] Therefore, by moving the light-emitting unit, the light beam can be moved without moving the optical projection element. Thus, the light-emitting module enables the light beam formed by it to be moved without moving the optical projection element. Therefore, a mask can be arranged in the immediate vicinity of the optical projection element. Specifically, since the optical projection element is stationary during beam adjustment, the optical projection element will not touch the mask during this adjustment.

[0020] The first direction orthogonal to the optical axis can be, for example, the vertical direction or the transverse direction defined when the light-emitting module is mounted on a motor vehicle.

[0021] The first movement of the light-emitting unit relative to the projection element can be a translation of the light-emitting unit relative to the projection element. Note that this translation can be a linear translation or a circular translation.

[0022] The second direction orthogonal to the optical axis can be, for example, the vertical direction when the first direction is the transverse direction, or can be the transverse direction when the first direction is the vertical direction, the transverse direction and the vertical direction being defined when the light-emitting module is mounted on a motor vehicle.

[0023] The second movement of the light-emitting unit relative to the projection element can be a rotation of the light-emitting unit about a rotation axis, which rotation axis is in particular parallel to the plane formed by the optical axis and the first orthogonal direction. In a particular case, the rotation axis can be parallel to the extension axis of the optical projection element. According to another example, the rotation axis can be parallel to the first orthogonal direction.

[0024] According to a feature of the invention, the connecting element is arranged on both sides of the optical projection element and / or on both sides of the at least one condenser.

[0025] According to a feature of the invention, each connecting element comprises a central part, a front part and a rear part, the central part and the rear part being articulated by a rear pivot connection, the axis of which is orthogonal to the optical axis and the first orthogonal direction, and the central part and the front part being articulated by a front pivot connection, the axis of which is orthogonal to the optical axis and the first orthogonal direction.

[0026] A front pivot connection member connecting the front portion and the central portion of each connecting element and a rear pivot connection member connecting the rear portion and the central portion of each connecting element allow the connecting element to be articulated. In particular, during a first movement of the light-emitting unit, the light-emitting unit can perform a circumferential translational movement relative to the optical projection element by means of the front pivot connection member and the rear pivot connection member. However, given the dimensions of the light-emitting module, in particular the length of the central portion of the connecting element, this circumferential translational movement can be likened to a translational movement in a first orthogonal direction.

[0027] According to a feature of the present invention, the optical projection element is arranged in front of the front pivot connection member, and the light-emitting unit is attached to the rear portion.

[0028] According to a feature of the present invention, the front portion of each connecting element is movably mounted relative to the support.

[0029] According to a feature of the present invention, the front pivot connection member and the rear pivot connection member define the vertices of a parallelogram in a projection in a plane defined by the optical axis and the first orthogonal direction.

[0030] According to an alternative, the pivot connection member is a flexible connection member having a semi-circular neck. Thus, the front portion, the central portion, and the rear portion of each connecting element can be integrally formed. Therefore, manufacturing the connecting element as a single piece enables the assembly of the light-emitting module to be simplified and its overall volume to be reduced.

[0031] According to another alternative, the front portion, the central portion, and the rear portion are formed by three separate parts. According to an example, the central portion can at least include a front cylindrical pin and a rear cylindrical pin whose axes are orthogonal to the optical axis and the first orthogonal direction, and the front portion can include a hole in which the front cylindrical pin engages to form the front pivot connection member, and the rear portion can include a hole in which the rear cylindrical pin engages to form the rear pivot connection member. In particular, the rear portion of each connecting element can be formed by a part of the light-emitting unit (such as a condenser). Manufacturing the connecting element as three separate parts helps in the manufacture of the connecting element.

[0032] According to a feature of the present invention, the front portion of each connecting element is connected to the support by an additional hinge that allows the light-emitting unit and the connecting element to rotate about an inherent rotation axis located in front of the front pivot connection member and oriented in the first orthogonal direction.

[0033] Note that the inherent rotation axis of the light-emitting unit and the connecting element is specific to the light-emitting module. In the specification, this inherent rotation axis can also be referred to as the "inherent rotation axis of the light-emitting unit".

[0034] For example, each front portion is hinged to the support by a pivot connection, the axis of which is parallel to the first orthogonal direction.

[0035] Thus, the light-emitting module includes a front pivot connection and a rear pivot connection to allow a first movement of the light-emitting unit, and includes a pivot connection formed by the front portion to allow a second movement of the light-emitting unit, which allows the first movement and the second movement to be adjusted independently. Thus, using these pivot connections makes it possible to obtain a light-emitting module with a smaller volume than a module using a ball joint.

[0036] According to a feature of the invention, the light-emitting module includes a crossbar extending between the front portions of each connecting element. This crossbar makes it possible to strengthen the connecting element.

[0037] According to a feature of the invention, the light-emitting module includes a crossbar extending between the front portions of each connecting element. This crossbar makes it possible to strengthen the connecting element.

[0038] According to a feature of the invention, the optical projection element includes an intermediate transverse axis which is arranged at a distance of less than 30 mm, preferably less than 15 mm, and even more preferably less than 5 mm from the intrinsic rotation axis. Alternatively, the intermediate transverse axis coincides with the intrinsic rotation axis. Thus, during the second movement of the light-emitting unit, the distance between the at least one light source and the intermediate transverse axis of the optical projection element varies little or even remains constant, which limits the deformation of the formed light beam.

[0039] According to a feature of the invention, each light collector includes a reflective surface. Where applicable, the optical projection element may be configured to mirror the reflective surface of each light collector.

[0040] For example, the optical projection element includes one or more object-space foci, and the rear edge of each light collector of the light-emitting unit is arranged close to the object-space focus or one of the object-space foci of the optical projection element.

[0041] According to a feature of the invention, the optical projection element is a projection lens. Then, the optical projection element has a single object-space focus, which may take the form of an object-space focal line. In this case, the optical axis of the optical projection element corresponds to the optical axis of the projection lens. Alternatively, the optical projection element is formed by juxtaposing projection lenses. Each projection lens forming the optical projection element then has an object-space focus. In this case, the optical axis of the optical projection element can then be considered as the average optical axis of the optical projection element.

[0042] Alternatively, the optical projection element may be formed by one or more mirrors or any other combination of lenses and mirrors.

[0043] According to a feature of the present invention, the light-emitting unit includes at least two light sources, at least two light collectors, at least one light source associated with each light collector, and at least one additional connecting element. The at least one additional connecting element is arranged between two light collectors and between the two connecting elements (referred to as lateral connecting elements) in a first orthogonal direction. The additional connecting element extends longitudinally between the light-emitting unit and the optical projection element and is configured and hinged to allow a first movement of the light-emitting unit relative to the optical projection element or to allow a first movement and a second movement of the light-emitting unit relative to the optical projection element.

[0044] According to a feature of the present invention, the light-emitting unit includes a slot for receiving a locking screw for attaching the light-emitting module to the mounting element. The slot is configured to allow the light-emitting unit to move relative to the mounting element when the locking screw is loosened and to prevent the light-emitting unit from moving relative to the mounting element when the locking screw is tightened.

[0045] The mounting element can be formed, for example, by a support. In this case, this allows, for example, adjusting the position of the light-emitting unit of the light-emitting module relative to the optical projection element at the factory. Specifically, when the locking screw is loosened, the position of the light-emitting unit relative to the optical projection element can be adjusted. Once the position of the light-emitting unit is correctly positioned relative to the optical projection element, the locking screw is tightened. Thus, the light-emitting module is ready to be installed in a motor vehicle, for example, by placing the light-emitting module in a lighting device such as a headlight.

[0046] The mounting element can also be formed by a part independent of the support. This mounting element can sometimes be referred to as a "support plate". In this case, the slot can allow fine adjustment of the light-emitting module relative to the mounting element to which the light-emitting module is attached. This is particularly advantageous when several light-emitting modules are attached to the same mounting element.

[0047] There is also proposed a motor vehicle lighting device, which includes: a first light-emitting module and a second light-emitting module, each of the first light-emitting module and the second light-emitting module being according to the present invention; and a mounting element, and each of the first light-emitting module and the second light-emitting module is attached to the mounting element at an attachment point.

[0048] In particular, the first light-emitting module and the second light-emitting module can be attached to the mounting element via their light-emitting units.

[0049] According to a feature of the present invention, the first light-emitting module is fixedly attached to the mounting element, and the second light-emitting module includes a slot for receiving a locking screw for attaching the second light-emitting module to the mounting element. The slot is configured to allow the light-emitting unit to move relative to the mounting element when the locking screw is loosened, and to prevent the light-emitting unit from moving relative to the mounting element when the locking screw is tightened, so that the light-emitting unit of the second light-emitting module can be adjusted relative to the mounting element.

[0050] The first light-emitting module can thus also be referred to as a reference module because it remains stationary relative to the mounting element, while the second light-emitting module can be referred to as an adjustable module because the position of its light-emitting unit can be adapted relative to the mounting element.

[0051] Note that the lighting device may include more than two light-emitting modules. For example, the light-emitting modules may include a reference light-emitting module and a plurality of adjustable modules.

[0052] According to a feature of the present invention, the mounting element includes: an attachment wall to which the light-emitting units of the first light-emitting module and the second light-emitting module are attached at their attachment points; and at least two arms that extend from the attachment wall towards the optical projection elements of the first light-emitting module and the second light-emitting module, and are configured and hinged to be able to transmit a first movement to the first light-emitting module and the second light-emitting module to allow the light-emitting unit of each of the first light-emitting module and the second light-emitting module to perform a first movement, and to be able to transmit a second movement to the first light-emitting module and the second light-emitting module to allow the light-emitting unit of each of the first light-emitting module and the second light-emitting module to perform a second movement.

[0053] Therefore, the first movement and the second movement of the mounting element are simultaneously transmitted to the first light-emitting module and the second light-emitting module, thereby allowing the first movement and the second movement of the first light-emitting module and the second light-emitting module to be enabled simultaneously. Thus, the light beams generated by each of the light-emitting modules move simultaneously.

[0054] According to a feature of the present invention, each arm of the mounting element includes a central portion, a front portion, and a rear portion. The central portion and the rear portion are hinged by a rearward pivot connection whose axis is orthogonal to the optical axis and a first orthogonal direction, and the central portion and the front portion are hinged by a forward pivot connection whose axis is orthogonal to the optical axis and the first orthogonal direction.

[0055] The forward pivot connection connecting the front portion and the central portion of each arm of the mounting element and the rearward pivot connection connecting the rear portion and the central portion of each arm of the mounting element allow the arms to be hinged.

[0056] According to a feature of the present invention, the forward pivot connection and the rearward pivot connection define the vertices of a parallelogram in a projection in the plane defined by the optical axis and the first orthogonal direction.

[0057] According to a feature of the present invention, the central portions of the connecting elements of the first light-emitting module and the second light-emitting module have the same length. This contributes to the first movement of the light-emitting unit.

[0058] According to a feature of the present invention, the central portion of the arm of the mounting element has the same length as the central portions of the connecting elements of the first light-emitting module and the second light-emitting module. This contributes to transmitting the movement of the mounting element to the light-emitting units of the first light-emitting module and the second light-emitting module.

[0059] According to a feature of the present invention, the front portion of each arm is connected to a support of one of the first light-emitting module and the second light-emitting module by an additional hinge that allows the mounting element to rotate about a main rotation axis located in front of the forward pivot connection.

[0060] For example, each front portion is hinged to the support by a pivot connection. The axis of the pivot connection is defined by a straight line connecting the pivot connections of the front portions of the arms of the mounting element.

[0061] According to a feature of the present invention, for the first light-emitting module and the second light-emitting module, the distance between the attachment point and the intrinsic rotation axis of the light-emitting unit is the same as the distance between the attachment point and the main rotation axis of the mounting element. Throughout this specification, the distance between a point and a straight line is determined by the length of the line segment that perpendicularly connects the point to the straight line.

[0062] According to a feature of the present invention, the distance between the attachment point of the first light-emitting module and the intrinsic rotation axis of the light-emitting unit of the first light-emitting module is the same as the distance between the attachment point of the second light-emitting module and the intrinsic rotation axis of the light-emitting unit of the second light-emitting module.

[0063] According to a feature of the present invention, the distance between the attachment point of the first module and the main rotation axis of the mounting element is the same as the distance between the attachment point of the second module and the main rotation axis of the mounting element.

[0064] According to a feature of the present invention, the first movement of the mounting element is intended to be enabled by a first actuator, and the mounting element is configured to be connected to the first actuator by an annular linear connection whose axis is perpendicular to the first orthogonal direction and the optical axis or parallel to the first orthogonal direction. Alternatively, the mounting element can be configured to be connected to the first actuator by a spherical joint.

[0065] According to a feature of the invention, a second movement of the mounting element is intended to be enabled by a second actuator, the mounting element being configured to be connected to the second actuator by an annular linear connection member, the axis of which is parallel to a first orthogonal direction.

[0066] According to a feature of the invention, the lighting device comprises a housing having a recess in which a first lighting module and a second lighting module are arranged.

[0067] According to a feature of the invention, the supports of the first lighting module and the second lighting module are formed by a part of the housing or by parts rigidly fastened to the housing.

[0068] According to a non - limiting feature, the housing comprises an opening arranged in front of the recess, and the lighting device comprises a closing external lens that closes the opening of the housing.

[0069] Alternatively, the housing comprises an opening arranged in front of the recess, and the optical projection elements of the first lighting module and the second lighting module close the opening of the housing.

[0070] The invention and its various applications will be better understood by reading the following description and studying the drawings:

[0071] Figure 1 Figure 1 is a perspective view of a lighting module according to an embodiment of the invention, the lighting module comprising a lighting unit, an optical projection element fixedly mounted on a support, and a connection element for connecting the lighting unit to the support,

[0072] Figure 2 Figure 2 is a top - down close - up view of a locking screw inserted into a slot in the lighting module according to a non - limiting embodiment, Figure 1 in

[0073] Figure 3 Figure 3 is Figure 1 the kinematic diagram in perspective of the lighting module, showing the lighting module in its nominal position,

[0074] Figure 4 Figure 4 is Figure 1 the top view and side view of the lighting module in Figure 3 its nominal position as shown in

[0075] Figure 5 Figure 5 is Figure 1 the top view and side view of the lighting module during a first movement and a second movement of the lighting unit relative to the optical projection element,

[0076] ​​​​​​​​​​Figure 6 Figure 6 shows a top view of an alternative embodiment of a module of Figure 1 wherein the light-emitting module includes additional connecting elements,

[0077] Figure 7 Figure 7 schematically shows the light rays generated by the light source of the light-emitting unit and guided by the condenser of the light-emitting unit towards the optical projection element,

[0078] Figure 8 Figure 8 is a top view and a side view of a light-emitting device according to an embodiment of the present invention, the light-emitting device including a mounting element and three light-emitting modules according to the present invention, the three light-emitting modules including a reference module and two adjustable modules, the reference module being attached to the mounting element and in an initial position, and the two adjustable modules being pre-positioned on the mounting element,

[0079] Figure 9 Figure 9 is Figure 8 a top view and a side view of a light-emitting device of

[0080] Figure 10 Figure 10 is Figure 8 a top view and a side view of the light-emitting device of

[0081] Figure 11 Figure 11 is Figure 8 a top view and a side view of the light-emitting device of Figure 10 during a second movement of the mounting element following the first movement of the mounting element shown in

[0082] Figure 12 Figure 12 is Figure 8 a schematic top view of a light-emitting device of

[0083] Figure 13 Figure 13 is Figure 8 a schematic top view of a light-emitting device of

[0084] Unless otherwise specified, elements that are identical in structure or function and appear in different figures are denoted by the same reference numerals. ​​​​​​​​​​​​​​​​

[0085] Figure 1 Shows a lighting module 1 for a motor vehicle according to an embodiment of the present invention. The lighting module 1 is intended to be installed in a lighting device of a motor vehicle (such as a motor vehicle headlight). The lighting device itself is intended to be installed on a motor vehicle.

[0086] In the remainder of the specification, the longitudinal direction X will be understood to be the longitudinal direction of the vehicle along which the lighting module is intended to be installed by means of the lighting device, the transverse direction Y perpendicular to the longitudinal direction X will be understood to be the direction transverse to said vehicle, and the vertical direction Z will be understood to be the direction perpendicular to the longitudinal direction X and the transverse direction Y. The lighting module 1 includes a lighting unit 10, an optical projection element 20, a support 3 on which the optical projection element 20 is mounted, and two connecting elements 41, 42 for connecting the lighting unit 10 to the support 3. In Figure 1 In, for the sake of clarity, the optical projection element 20 is shown in front of the support 3, it should be understood that the optical projection element 20 is generally positioned on the support 3.

[0087] The lighting unit 10 includes a light source 11 and a light collector 12. Each light source 11 is associated with one of the light collectors 12. In the example shown, one light collector 12 is associated with each light source 11, it should be understood that, without departing from the scope of the present invention, several light sources 11 can also be associated with the same light collector 12. The light sources 11 can be selectively enabled.

[0088] The lighting unit 10 further includes a heat sink 13 so that the heat generated by the light source 11 can be dissipated. The heat sink 13 includes a plate 13b extending horizontally (in other words, in the plane including the longitudinal direction X and the transverse direction Y), and a plurality of fins 13a extending behind the light collector 12. The plurality of fins can also extend below the light collector, or extend both behind and below the light collector 12. The light source 11 is arranged on the plate 13b. The light source can be arranged directly or indirectly on the plate. In the case where the light source 11 is arranged indirectly, the lighting unit 10 can include a printed circuit arranged on the plate 13b, and the light source 11 is arranged on the printed circuit. The light collector 12 is attached to the heat sink 13, in particular to the plate 13b of the heat sink 13. Where applicable, the printed circuit can be sandwiched between the plate 13b and the light collector 12.

[0089] Each light source 11 is configured to emit light towards the light collector 12 associated therewith. The light collector 12 collects the light and guides the light towards the optical projection element 20. In particular, each light collector 12 includes a reflective surface 12a (visible in Figure 7 ) The reflective surface 12a of each light collector 12 reflects the light emitted by the light source 11 associated therewith towards the optical projection element 20.

[0090] The optical projection element 20 has an optical axis O. In the example shown, the optical axis O of the optical projection element 20 is parallel to the longitudinal direction X. In this case, the optical projection element 20 is a projection lens. As will be seen below, particularly with reference to Figure 6 , the optical projection element 20 can also be formed by a plurality of juxtaposed projection lenses. Alternatively, the optical projection element can be formed by one or more mirrors or any other combination of lenses and mirrors.

[0091] The optical projection element 20 receives the light rays reflected by the condenser 12 and projects these reflected light rays towards the outside of the lighting module 1 and towards the outside of the motor vehicle on which the lighting module 1 is intended to be mounted, so as to form a light beam F1.

[0092] Figure 7 shows the path of the light rays emitted by the light source 11, reflected by the condenser 12 and projected by the optical projection element 20. Each condenser 12 has an elliptical or parabolic or freeform shape. The light source 11 associated with the condenser 12 is arranged at the first focal point of the condenser 12 or in the vicinity of this first focal point, for example at a distance of less than 10 mm. The light rays R1 emitted by the light source 11 are then collected by the reflecting surface 12a of the condenser 12 and reflected towards the optical projection element 20. For each condenser 12, the optical projection element 20 then projects the collected and reflected light rays onto the road and thus forms a sub-beam. All the sub-beams are superimposed to form the light beam F1.

[0093] The optical projection element 20 includes an object focal point 20.3 arranged near the rear edge of at least one of the condensers 12 in the lighting unit 10. Alternatively, the optical projection element 20 can have a focal line passing near the rear edge of each of the condensers 12 in the condenser 12. "Near" means a distance less than or equal to 10 mm. Thus, the optical projection element 20 forms an image of at least one of the condensers 12 or of the reflecting surface 12a of each condenser 12 in the condenser 12. The sub-beam formed corresponds to this image of the reflecting surface 12a.

[0094] In particular, the rear edge of at least one of the condensers 12 can have a specific notch, and the optical projection element 20 thus projects this notch into the sub-beam produced by the reflection of the light rays on this condenser 12. For example, the sub-beam can thus have an upper horizontal light-dark dividing line formed by the projection of the notch by the optical projection element 20.

[0095] The light beam F1 can be, for example, all or part of the dipped beam. The light beam F1 can be, for example, all or part of the main beam. For example, it is possible that some of the light collectors 12 only contribute to the formation of the dipped beam, while other light collectors 12 contribute to the formation of an additional main beam, the additional main beam being combined with the dipped beam so that the main beam can be formed. Thus, the light source 11 can be selectively turned on or off to form the dipped beam or the main beam.

[0096] The optical projection element 20 is fixedly mounted on the support 3. In other words, the optical projection element 20 is always stationary relative to the support 3.

[0097] On the one hand, the optical projection element 20 and the support 3, and on the other hand, the light-emitting unit 10 are connected together by connecting elements 41, 42. The connecting elements 41, 42 are each connected on the one hand to the light-emitting unit 10 and on the other hand to the support 3.

[0098] Each connecting element 41, 42 is configured and articulated to allow a first movement of the light-emitting unit 10 relative to the optical projection element 20 and a second movement of the light-emitting unit 10 relative to the optical projection element 20. The first movement allows the light beam F1 to move in a first direction orthogonal to the optical axis O of the optical projection element 20, and the second movement allows the light beam F1 to move in a second direction orthogonal to the optical axis O.

[0099] In the example shown, the first direction orthogonal to the optical axis O is the transverse direction Y, and the second direction Z orthogonal to the optical axis is the vertical direction Z. In a variant not shown, the first orthogonal direction can be the vertical direction Z and the second orthogonal direction can be the transverse direction Y.

[0100] In particular, the connecting elements 41, 42 are arranged on both sides of the optical projection element 20 and the light collector 12 in the first orthogonal direction.

[0101] To allow the first light beam F1 to move in the first orthogonal direction Y, each connecting element 41, 42 includes a central portion 411, 421, a front portion 412, 422 and a rear portion 413, 423, the central portions 411, 421 and the rear portions 413, 423 being articulated by rear pivot connectors C, B, the axis of which is orthogonal to the optical axis O and the first orthogonal direction Y, and the central portions 411, 421 and the front portions 412, 422 being articulated by front pivot connectors A, D, the axis of which is orthogonal to the optical axis O and the first orthogonal direction Y. Throughout this specification, the front direction and the rear direction are considered with respect to the direction in which the light in the light-emitting module 1 is emitted along the optical axis O of the optical projection element 20. The emission direction is opposite to the direction of the longitudinal axis X shown in the figure.

[0102] Furthermore, the front pivot connectors A, D and the rear pivot connectors B, C define the vertices of a parallelogram in the projection in the plane defined by the optical axis O and the first orthogonal direction Y. In other words, the central portions 411, 421 have the same length and are parallel. In the example shown, the front pivot connectors A, D and the rear pivot connectors B, C are aligned in the first orthogonal direction Y respectively; however, the front pivot connectors and the rear pivot connectors may also not be aligned in the first orthogonal direction Y.

[0103] In Figure 1 the example shown, the front pivot connectors A, D and the rear pivot connectors B, C are formed by flexible connectors having semi-circular necks. Alternatively, the front pivot connectors A, D may also be formed by at least one cylindrical pin disposed on one of the central portions 411, 421 and the front portions 412, 422 and holes disposed on the other of the central portions 411, 421 and the front portions 412, 422 that interact with the pins, and the rear pivot connectors B, C may be formed by at least one cylindrical pin disposed on one of the central portions 411, 421 and the rear portions 413, 423 and holes disposed on the other of the central portions 411, 421 and the rear portions 413, 423.

[0104] The light-emitting unit 10 is attached to the connecting elements 41, 42 through the rear portions 413, 423. In particular, the rear portions 413, 423 may be formed by elements of the light-emitting unit 10, such as by the heat sink 13 or the light collector 12.

[0105] To allow the first light beam F1 to move in the second orthogonal direction Z, the front portions 412, 422 of each connecting element 41, 42 are connected to the support 3 through additional hinges, thereby allowing the light-emitting unit 10 and the connecting elements 41, 42 to rotate about an inherent rotation axis A'D' located in front of the front pivot connectors A, D and oriented along the first orthogonal direction Y. In particular, each front portion 412', 422' is hinged to the support 3 through pivot connectors D', A', and the axis of the pivot connectors is parallel to the first orthogonal direction Y.

[0106] The optical projection element 20 includes an intermediate transverse axis LL' that coincides with the rotation axis of the pivot connectors A', D'. Alternatively, the intermediate transverse axis LL' may be disposed at a distance less than 30 mm, preferably less than 15 mm, and even more preferably less than 5 mm from the rotation axis. Therefore, during the second movement of the light-emitting unit 10, the distance between the light source 11 and the intermediate transverse axis LL' of the optical projection element 20 remains constant, which limits the deformation of the formed light beam F1.

[0107] For clarity, in Figure 4In the figure, the optical projection element 20 is shown in front of the support 3. The optical projection element 20 is placed on the support 3, in front of the front pivot connectors A, D.

[0108] The light emitting module 1 includes two crossbars 5 extending between the front portions 412, 422 of each connecting element 41, 42. These crossbars 5 enable the connecting elements 41, 42 to be strengthened.

[0109] The extension of the light emitting unit 10, in particular the radiator 13, includes a groove 130 for receiving a locking screw 21, enabling the light emitting module 1 to be attached to the mounting element 50. In particular, since the groove 130 is arranged on the light emitting unit 10, the light emitting module 1 can be attached to the mounting element 50 via the light emitting unit 10.

[0110] The groove 130 is configured to allow the light emitting unit 10 to move relative to the mounting element 50 when the locking screw 21 is loosened, and to prevent the light emitting unit 10 from moving relative to the mounting element 50 when the locking screw 21 is tightened.

[0111] The position of the light emitting unit 10 relative to the optical projection element 20 of the light emitting module 1 can be easily adjusted by the interaction between the locking screw 21 and the groove 130. As Figure 2 shown, the locking screw 21 can be pre-screwed into the mounting element 50. The locking screw includes a threaded portion 21a that interacts with a threaded cavity 22 located on the mounting element 50. The diameter of the threaded portion 21a is smaller than the size of the groove 130. Thus, when the locking screw 21 is loosened, the light emitting unit 10 and, in the case shown, the radiator 13 can move vertically and laterally relative to the mounting element 50. For example, a tool that allows the light emitting unit 10 to move when the locking screw 21 is loosened can be used. The light emitting unit 10 can thus move according to a first movement and a second movement, which causes the light beam F1 to move in a first direction Y and a second direction Z.

[0112] Once the light emitting unit 10 is in the desired position relative to the optical projection element 20, the locking screw 21 is tightened. Thus, the light emitting module is adjusted relative to the mounting element 50. The desired position can be, for example, the nominal position. The desired position can be determined by evaluating the position of the light beam F1 projected onto the screen.

[0113] In Figure 1In the specific example shown, the mounting element 50 is formed by a part 30 of the support 3. Thus, when the locking screw is loosened, the position of the light-emitting unit 10 relative to the support, and thus relative to the optical projection element 20 of the light-emitting module 1, can be adjusted. Thus, the light-emitting unit 10 can be placed in a predetermined position relative to the optical projection element 20 and then locked in that position. This adjustment can be carried out, for example, at the factory, resulting in a light-emitting module that is adjusted and ready to be installed in a motor vehicle (e.g., by placing the light-emitting module in a lighting device such as a headlight).

[0114] As will be seen with particular reference Figures 8 to 11 The mounting element 50 can also be formed by a part independent of the support. This mounting element can sometimes be referred to as a "support plate". In this case, the slot 130 allows for fine adjustment of the position of the light-emitting module 1 relative to the mounting element 50 to which the light-emitting module is attached. As will be seen below, this is particularly advantageous when several light-emitting modules are attached to the same mounting element.

[0115] Figure 3 A kinematic view of the light-emitting module 1 in its reference or nominal position is shown. At this time, the light beam F1 is located at the center of the grid. Figure 4 The positions of the optical projection element 20, the connecting elements 41, 42, and the light-emitting unit 10 when the light-emitting module 1 is in the reference position are shown in a top view and a side view. The central portions 411, 421 extend parallel to the longitudinal direction X. Note that in the example shown, the rear portions 412, 423 and the front portions 412, 422 also extend parallel to the longitudinal direction X in the nominal position.

[0116] Figure 5 The positions of the optical projection element 20, the connecting elements 41, 42, and the light-emitting unit 10 when the light beam F1 moves in the first orthogonal direction Y and the second orthogonal direction Z are shown in a top view and a side view.

[0117] The first movement of the light-emitting unit 10 is enabled by applying a force S1 by an actuator. This force S1 pushes the light-emitting unit 10, in particular the heat sink 13 on which the condenser 12 and the light source 11 are arranged. The light-emitting unit 10 follows the movement caused by the main actuator H1 and moves in a circular translation manner by means of the front pivot connections A, D and the rear pivot connections C, D. However, given the dimensions of the light-emitting module 1, in particular the length of the central portions 411, 421 of the connecting elements 41, 42, this circular translation can be compared to a translation in the transverse direction Y. This translational movement is visible in Figure 5 the top view of the light-emitting module 1 shown.

[0118] During the first movement of the light-emitting unit 10, the optical projection element 20 remains fixed. Specifically, by means of the front pivot connectors A, D and the rear pivot connectors C, D, only the rear portions 413, 423 and the central portions 411, 421 move by pivoting about the front pivot connectors A, D and the rear pivot connectors C, B. Therefore, there is a relative movement between the light-emitting unit 10 and the optical projection element 20, such that the light beam F1 moves horizontally.

[0119] After the force S1 is applied, the light beam F1 then Figure 4 is laterally shifted to the right in the grid depicted in Figure 5 compared to its initial position shown in the grid in Figure 5 . It should be understood that the force S1 can be applied to the light-emitting unit 10 in another direction. In this case, the light beam F1 will be shifted in the other direction, i.e., to the left in the grid shown in

[0120] The second movement of the light-emitting unit 10 is enabled by applying the force S4 by the actuator. This force S4 pushes the light-emitting unit 10, in particular the heat sink 13 on which the condenser and the light source 11 are arranged. The light-emitting unit 10 follows the movement caused by the force S4 and rotates about the axis of rotation formed by the pivot connectors A', D'.

[0121] During the second movement of the light-emitting unit 10, the optical element 20 remains fixed relative to the support 3. Only the connecting elements 41, 42 and the light-emitting unit 10 pivot about the pivot connectors A', D' formed between the front portions 412, 422 and the support 3 and thus move relative to the support 3. Therefore, there is a relative movement between the light-emitting unit 10 and the optical projection element 20, such that the light beam F1 moves vertically.

[0122] After the force S4 is applied, the light beam F1 then Figure 4 is vertically shifted downward in the grid depicted in Figure 5 compared to its initial position shown in the grid in Figure 5 . It should be understood that the force S4 can be applied to the light-emitting unit 10 in another direction. In this case, the light beam F1 will be shifted in the other direction, i.e., upward in the grid shown in

[0123] Figure 6 depicts Figure 1 a variant embodiment of the light-emitting module 1 shown in Figures 1 to 5 . According to this variant, the light-emitting module 1 includes an additional connecting element 43 arranged between two connecting elements 41, 42 called lateral connecting elements. All other elements of the light-emitting module 1 according to this variant are the same as the elements of the light-emitting module described with reference to

[0124] The additional connecting element 43 is arranged between two light collectors 12 in the first orthogonal direction Y. The additional connecting element 43 extends longitudinally between the light-emitting unit 10 and the optical projection element 20 and is configured and hinged to allow a first movement and a second movement of the light-emitting unit 10 relative to the optical projection element 20. The additional connecting element 43 thus forms a partition within the light-emitting module 1'.

[0125] In particular, the additional connecting element 43, together with the lateral connecting elements 41, 42, defines optical cavities 7, 8 within the light-emitting module 1, the optical cavities 7, 8 being delimited by two successive connecting elements 41, 42, 43. Each optical cavity 7, 8 particularly includes a light collector 12 arranged between the two successive connecting elements 41, 42, 43 in question, and a light source 11 associated with each light collector 12.

[0126] The additional connecting element 43 thus prevents stray light between the optical cavities 7, 8 of the light-emitting module 1. In particular, the additional connecting element 43 prevents light emitted by the light source 11 of one optical cavity 7, 8 from reaching the other optical cavity 7, 8.

[0127] In this case, each optical cavity 7, 8 may include its own projection lens 27, 28. In particular, the optical projection element 20 may be formed by juxtaposing the projection lenses 27, 28 of each optical cavity 7, 8.

[0128] The additional connecting element 43 includes a central portion 431, a front portion 432 and a rear portion 433, the central portion 431 and the rear portion 433 being hinged by a rear pivot connection J, the axis of which is orthogonal to the optical axis O and the first orthogonal direction Y, and the central portion 431 and the front portion 432 being hinged by a front pivot connection I, the axis of which is orthogonal to the optical axis O and the first orthogonal direction Y.

[0129] The front pivot connection I and the rear pivot connection J are flexible connections having a semi-circular neck. The front portion 432, the central portion 431 and the rear portion 433 of the additional connecting element can thus be integrally formed. Producing the connecting element as a single piece makes it possible to simplify the assembly of the light-emitting module and reduce its overall volume. According to an alternative, the central portion 431 may include at least a front cylindrical pin and a rear cylindrical pin the axes of which are orthogonal to the optical axis and the first orthogonal direction, and the front portion 432 may include a hole in which the front cylindrical pin engages to form the front pivot connection I, and the rear portion 433 may include a hole in which the rear cylindrical pin engages to form the rear pivot connection J. In particular, the rear portion 433 of the additional connecting element 43 may be formed by a part of the light-emitting unit 10, such as a light collector. Producing the connecting element as three separate parts makes it possible to facilitate the manufacture of the connecting element.

[0130] The front pivot connection I and the rear pivot connection J of the additional connection element 43 define the vertices of a parallelogram in the projection in the plane defined by the optical axis O and the first orthogonal direction Y with the front pivot connections A, D and the rear pivot connections C, D of each of the lateral connection elements 41, 42. Thus, the additional connection element 43 can follow the deformation of the lateral connection elements 41, 42 during the first movement of the light-emitting unit 10.

[0131] The rear portion 433 of the additional connection element 43 is attached to the light-emitting unit 10. The front portion 432 of the additional connection element can be connected, for example via a crossbar 5, to the front portions 412, 422 of the lateral connection elements 41, 42. Thus, the additional connection element 43 can follow the deformation of the lateral connection elements 41, 42 during the second movement of the light-emitting unit 10.

[0132] Figures 8 to 11 A lighting device 100 for a vehicle according to the invention is shown. The lighting device 100 includes three lighting modules according to the invention, referred to as a first lighting module 1a, a second lighting module 1b and a third lighting module 1c. It should be understood that, without departing from the scope of the invention, the lighting device 100 may include only two lighting modules or more than three lighting modules.

[0133] The lighting device 100 further includes a mounting element 50, which is formed by a support plate 52 separate from the supports 3 of the lighting modules 1a, 1b, 1c, to which the lighting modules 1a, 1b, 1c are attached at attachment points 51a, 51b, 51c.

[0134] The first lighting module 1a is fixedly attached to the mounting element 50 by means of an attachment screw 21'. The first lighting module 1a differs from the lighting module 1 Figures 1 to 7 described only in that the first lighting module does not have slots intended to interact with adjustment screws for attachment to the mounting element 50. The first lighting module is attached directly to the mounting element 50 by the attachment screw 21'. Thus, its position cannot be adjusted relative to the mounting element 50. Thus, the first lighting module 1a is also referred to as a reference module. Alternatively, the first lighting module 1a may have slots intended to interact with locking screws to attach the first lighting module 1a to the mounting element 50, and its position may be adjustable relative to this mounting element 50.

[0135] The second lighting module 1b and the third lighting module 1c are the same as the reference Figures 1 to 7It is the same as the described light-emitting module 1, except that the mounting element 50 is not formed by the support 3 of the corresponding light-emitting module, but by a support plate 52 separate from the support 3. The second light-emitting module 1b and the third light-emitting module 1c each have a slot 130 such that they are adjustably attached to the mounting element 50 by means of locking screws 21. Accordingly, the light-emitting units 10 of the second light-emitting module 1b and the third light-emitting module 1c are adjustable relative to the mounting element 50. The second light-emitting module 1b and the third light-emitting module 1c may also be referred to as adjustable modules.

[0136] Accordingly, the positions of the second light-emitting module 1b and the third light-emitting module 1c relative to the mounting element 50 can be adjusted independently.

[0137] The relative movements of the first light-emitting module 1a, the second light-emitting module 1b, and the third light-emitting module 1c are represented by the letters a, b, and c in the Figures 8 to 11 shown grid. Accordingly, as can be seen in Figure 8 , the light-emitting modules 1a, 1b, 1c are in their initial positions, in which the first module 1a is attached to the mounting element 50 and the second light-emitting module 1b and the third light-emitting module 1c are pre-positioned on the mounting element 50, and the adjusting screws 21 associated with the second light-emitting module and the third light-emitting module have not been inserted and are thus not visible. Alternatively, the adjusting screws 21 may be inserted into the slots 130 of the second light-emitting module 1b and the third light-emitting module 1c but remain loose. This initial position is represented by the letters a, b, c positioned and superimposed at the center of the grid.

[0138] Since the adjusting screws 21 associated with each of the second light-emitting module 1b and the third light-emitting module 1c are not tightened, the positions of the light-emitting units 10 of the second light-emitting module 1b and the third light-emitting module 1c can be adjusted by the interaction of the slots 130 of the second light-emitting module 1b and the third light-emitting module 1c with the associated locking screws 21 in such a way that the light-emitting modules 1a, 1b, 1c are displaced relative to each other. For example, Figure 9 shows the displaced positions. In the grid, it can be seen that the second light-emitting module 1b and the third light-emitting module 1c, represented by the letters b and c, have been displaced relative to the first light-emitting module 1a, represented by the letter a, which remains fixed at the center of the grid.

[0139] By means of this adjustment of the light-emitting modules 1b, 1c relative to the mounting element 50, the light-emitting modules 1a, 1b, 1c are positioned relative to each other, thereby allowing the light beams F1 generated by each of the light-emitting modules 1a, 1b, 1c to be aligned relative to each other.

[0140] The mounting element 50 includes: an attachment wall 53 to which the light-emitting units 10 of the light-emitting modules 1a, 1b, 1c are attached at their attachment points 51a, 51b, 51c; and at least two arms 55 that extend from the attachment wall 53 towards the optical projection elements 20 of the light-emitting modules 1a, 1b, 1c. The arms 55 are configured and articulated to be able to transmit a first movement to the light-emitting modules 1a, 1b, 1c, thereby allowing the light-emitting units 10 of each of the light-emitting modules 1a, 1b, 1c to perform a first movement, and also to be able to transmit a second movement to the light-emitting modules 1a, 1b, 1c, thereby allowing the light-emitting units 10 of each of the light-emitting modules 1a, 1b, 1c to perform a second movement.

[0141] To allow the first movement of the mounting element 50 to be transmitted to the light-emitting modules 1a, 1b, 1c, each of the arms 55 of the mounting element 50 includes a central portion 551, a front portion 552, and a rear portion 553. For each of the arms 55, the central portion 551 and the rear portion 553 are articulated by rearward pivot connections Bp, Cp whose axes are orthogonal to the optical axis O and the first orthogonal direction Y. The central portion 551 and the front portion 552 are articulated by forward pivot connections Ap, Dp whose axes are orthogonal to the optical axis O and the first orthogonal direction Y. In the example shown, when the light-emitting modules 1a, 1b, 1c are arranged horizontally (in other words, when the light-emitting modules are not pivoted about their own axis of rotation A'D'), the rearward pivot connections Bp, Cp and the forward pivot connections Ap, Dp are oriented along the vertical axis Z, which will be described below, as Figures 8 to 10 in the case of. The forward pivot connections Ap, Dp and the rearward pivot connections Bp, Cp define the vertices of a parallelogram in the projection in the plane defined by the optical axis O and the first orthogonal direction Y. In other words, the central portions 551 have the same length and are parallel. In Figures 8 to 11 the central portions 411, 421 of the connecting elements 41, 42 of the light-emitting modules 1a, 1b, 1c have the same length, which helps to transmit the first movement of the mounting element 50 to the light-emitting modules 1a, 1b, 1c. The central portions 551 of the arms of the mounting element and the central portions 411, 421 of the connecting elements 41, 42 have the same length, which also helps to transmit the first movement of the mounting element 50 to the light-emitting modules 1a, 1b, 1c.

[0142] As Figure 10As shown, the first movement of the mounting element 50 is enabled by a first actuator h1 which applies a force P1 oriented in a direction parallel to the optical axis O. The first actuator h1 is connected by a spherical joint to the central part 551 of the arm 55 of the mounting element 50. When the first actuator h1 is enabled, it moves the central part 551 of the mounting element 50 to which it is connected. By means of the forward pivot connections Ap, Dp and the rearward pivot connections Bp, Cp, the movement of the central part 551 causes the other central part, the rear part 553 and the attachment wall 53 to move in a circumferential translation. However, given the dimensions of the light-emitting modules 1a, 1b, 1c and of the mounting element 50, in particular the dimensions of the central part 551 and of the central parts 411, 421, this circumferential translation can be likened to a translation in the transverse direction Y. This translational movement is visible in Figure 10 the top view of the light-emitting module 1 shown.

[0143] During the first movement of the mounting element 50, the optical projection elements 20 of the light-emitting modules 1a, 1b, 1c remain fixed. Specifically, by means of the forward pivot connections Ap, Dp and the rearward pivot connections Bp, Cp, only the rear part 553 and the central part 551 of the arm 55 move, which causes the movement of the light-emitting unit 10, which, due to the forward pivot connections A, D and the rearward pivot connections C, B, moves without the associated optical projection element 20 moving. Thus, transmitting the first movement of the mounting element 50 to the light-emitting modules 1a, 1b, 1c allows the light-emitting unit 10 to move relative to the optical projection element 20 of each light-emitting module 1a, 1b, 1c, such that the light beam F1 of each light-emitting module 1a, 1b, 1c moves horizontally.

[0144] After the force P1 has been applied, the light beam F1 is then displaced transversely with respect to its starting position. Note that after the first movement of the mounting element 50, the light beams F1 emitted by each light-emitting module 1a, 1b, 1c move identically. In other words, their relative positions do not change. Thus, the first movement of the mounting element 50 causes a horizontal movement of the overall light beam formed by the superposition of all the light beams F1 from the light-emitting modules 1a, 1b, 1c, the shape of the overall light beam having been fixed when the adjustment screw 21 was tightened.

[0145] In Figure 10 when the mounting element 50 is in the Figure 9 position shown, the force P1 is applied to this mounting element. It can thus be seen that the light-emitting modules 1a, 1b, 1c are in Figure 9 compared to their starting positions shown in the Figure 10shifted horizontally to the left in the grid depicted. It can also be seen that the relative positions of the light-emitting modules 1a, 1b, 1c with respect to each other remain the same. This is illustrated by the simple horizontal translation of the letters a, b, and c to the left. The lateral shift of the light-emitting modules 1a, 1b, 1c causes the overall light beam formed by the superposition of the light beams F1 formed by each of the light-emitting modules 1a, 1b, 1c to be laterally shifted in the opposite direction (in this case, to the right). It should be understood that the force P1 can be applied to the mounting element 50 in another direction. In this case, the light-emitting modules 1a, 1b, 1c will be shifted in another direction, that is, Figure 10 shifted to the right in the grid shown, and the overall light beam will also be shifted in another direction, that is, to the left.

[0146] To allow the second movement of the mounting element 50 to be transmitted to the light-emitting modules 1a, 1b, 1c, the front portion 552 of each arm 55 is connected to a support 3 of one of the light-emitting modules 1a, 1b, 1c by an additional hinge that allows the mounting element 50 to rotate about a main rotation axis Ap'Dp' located in front of the forward pivot connections Ap, Dp. In particular, each front portion 552 is hinged to the support 3 by pivot connections Ap', Dp'. The axis of the pivot connection is defined by a straight line connecting the pivot connections Ap', Dp' of the front portion 552 of the arm 55 of the mounting element 50.

[0147] The rotation of the mounting element 50 about the main rotation axis Ap'Dp' causes the light-emitting units 10 of the light-emitting modules 1a, 1b, 1c and the connecting elements 41, 42 to rotate about their respective inherent rotation axes A'D'.

[0148] Note that the support 3 of the light-emitting modules 1a, 1b, 1c can be formed by several parts that are stationary relative to each other regardless of the movement of the mounting element 50 and the movement of the light-emitting unit 10. Alternatively, the support of the light-emitting modules 1a, 1b, 1c can form a single integral part.

[0149] It should also be noted that the connection between the first actuator h1 and the mounting element 50 is aligned with the main rotation axis Ap'Dp' of the mounting element 50 such that when the mounting element 50 has pivoted about the main rotation axis Ap'Dp', the first actuator h1 can still cause the translation of the mounting element 50.

[0150] For each of the light-emitting modules 1a, 1b, 1c, the distance d1 between the attachment points 51a, 51b, 51c and the intrinsic rotation axis A'D' of the light-emitting unit 10 is the same as the distance d2 between the attachment points 51a, 51b, 51c and the main rotation axis Ap'Dp' of the mounting element 50. Accordingly, the second movement of the mounting element 50 causes a similar second movement of the light-emitting unit 10. In particular, the rotation of the mounting element 50 about the main rotation axis Ap'Dp' causes the same rotation of the light-emitting unit 10 about its intrinsic rotation axis A'D'.

[0151] Moreover, for each of the light-emitting modules 1a, 1b, 1c, the distance d1 defined between the attachment points 51a, 51b, 51c of the light-emitting modules 1a, 1b, 1c and the intrinsic rotation axis A'D' of the light-emitting unit 10 is the same. Accordingly, the second movement of the light-emitting units 10 of the light-emitting modules 1a, 1b, 1c caused by the second movement of the mounting element 50 is the same.

[0152] Moreover, for each of the light-emitting modules 1a, 1b, 1c, the distance d2 defined between the attachment points 51a, 51b, 51c of the light-emitting modules and the main rotation axis Ap'Dp' of the mounting element 50 is the same. Accordingly, the second movement of the light-emitting units 10 of the light-emitting modules 1a, 1b, 1c caused by the second movement of the mounting element 50 is the same.

[0153] The second movement of the mounting element 50 is enabled by a second actuator h2 that applies a force P2 oriented along the vertical direction Z. The second actuator h2 is connected to the attachment wall 53 of the mounting element 50 by an annular linear connection whose axis is parallel to the first orthogonal direction. When the second actuator h2 is enabled, the second actuator moves the attachment wall 53 of the mounting element 50 by rotating about the main rotation axis Ap'Dp' formed by the pivot connections Ap', Dp'. During the second movement of the mounting element 50, the optical projection element 20 remains fixed relative to the support 3. Specifically, by means of the pivot connections Ap', Dp', only the arm 55 and the attachment wall 53 pivot about the main rotation axis Ap'Dp', which causes the light-emitting unit 10 to rotate about the pivot connections A', D', while the optical projection element 20 remains fixed. Accordingly, transferring the second movement of the mounting element 50 to the light-emitting modules 1a, 1b, 1c allows the light-emitting unit 10 to move relative to the optical projection element 20 of each of the light-emitting modules 1a, 1b, 1c such that the light beam F1 from each of the light-emitting modules 1a, 1b, 1c moves vertically.

[0154] After the application of the force P2, the light beam F1 is then displaced vertically relative to its starting position. Note that after the second movement of the mounting element 50, the light beams F1 emitted by each of the light-emitting modules 1a, 1b, 1c are displaced identically. In other words, their relative positions do not change. Thus, the second movement of the mounting element 50 causes a vertical displacement of the overall light beam formed by the superposition of all the light beams F1 from the light-emitting modules 1a, 1b, 1c, the shape of the overall light beam having been fixed when the adjusting screw 21 was tightened.

[0155] In Figure 11 when the mounting element 50 is in the Figure 10 position shown, the force P2 is applied to this mounting element. It can thus be seen that the light-emitting modules 1a, 1b, 1c are displaced vertically downwards in the Figure 10 compared to their starting positions shown in the grid in Figure 11 . It can also be seen that the relative positions of the light-emitting modules 1a, 1b, 1c with respect to one another remain the same. This is illustrated simply by the vertical upward translation of the letters a, b and c. The vertical displacement of the light-emitting modules 1a, 1b, 1c causes a vertical displacement of the overall light beam formed by the superposition of the light beams F1 formed by each of the light-emitting modules 1a, 1b, 1c in the opposite direction (in this case, downwards). It should be understood that the force P2 can be applied in the other direction to the attachment wall 53. In this case, the light-emitting modules 1a, 1b, 1c will be displaced in the other direction, i.e. downwards in the Figure 11 shown grid, and the overall light beam will also be displaced in the other direction, i.e. upwards.

[0156] As Figure 12 and Figure 13 shown, the light-emitting device 100 also includes a housing 101 having a recess 102 in which a protective cover is formed, the mounting element 50 and the light-emitting modules 1a, 1b, 1c being arranged in this protective cover. The housing 101 also has an opening. The supports 3 of the light-emitting modules 1a, 1b, 1c can be formed by a part of the housing 101 or by parts rigidly fastened to the housing 101.

[0157] Figure 12 and Figure 13 each show an alternative of the light-emitting device 100 according to the invention. The light-emitting device 100 can be a headlight of a motor vehicle.

[0158] In Figure 12 , the light-emitting device 100 includes a closed outer lens 103 that closes the opening. The light-emitting modules 1a, 1b, 1c and the mounting element 50 are arranged in the protective cover and are thus located between the wall forming the housing 101 and the closed outer lens 103.

[0159] InFigure 13 In [the device], the optical projection elements 20 formed by the projection lenses or juxtaposed projection lenses of the light-emitting modules 1a, 1b, 1c close the openings of the housing 101. In particular, the openings include a plurality of sub-openings, each of which is closed by the optical projection element of one of the light-emitting modules 1a, 1b, 1c. The light-emitting device 100 thus does not include any closing outer lens, which allows the efficiency of the light-emitting device 100 to be increased by approximately 15%. The optical projection element 20 serves as a closing outer lens. Specifically, since the optical projection element 20 remains fixed when the light beam F1 moves according to the first movement and the second movement, the optical projection element 20 can close the openings of the housing 101.

Claims

1. A lighting module (1) for a motor vehicle, said lighting module (1) comprising: * a lighting unit (10), said lighting unit comprising: - at least one light source (11), said at least one light source being configured to emit light rays (R1), - at least one light collector (12), said at least one light collector being associated with said at least one light source (11), * an optical projection element (20) having an optical axis (O), said light collector (12) being configured to collect the light rays (R1) emitted by said at least one light source (11) and direct said light rays towards said optical projection element (20), said optical projection element (20) being configured to project the light rays (R1) towards the outside of the vehicle to form a light beam (F1), * a support (3), said optical projection element (20) being fixedly mounted on said support; * two connecting elements (41, 42), each connecting element being connected on the one hand to said lighting unit (10) and on the other hand to said support (3), each connecting element being configured and hinged to allow a first movement of said lighting unit (10) relative to said optical projection element (20), said first movement allowing the light beam (F1) to move in a first direction (Y) orthogonal to the optical axis (O) of said optical projection element (20), and allowing a second movement of said lighting unit (10) relative to said optical projection element (20), said second movement allowing the light beam (F1) to move in a second direction (Z) orthogonal to the optical axis (O) of said optical projection element (20) and orthogonal to said first orthogonal direction (Y).

2. The light-emitting module (1) according to claim 1, wherein, Each connecting element (41, 42; 41', 42') comprises a central portion (411, 421), a front portion (412, 422; 412', 422') and a rear portion (413, 423), said central portion and said rear portion being hinged by a rear pivot connection (B, C), the axis of said rear pivot connection being orthogonal to the optical axis and the first orthogonal direction, and said central portion and said front portion being hinged by a front pivot connection (A, D), the axis of said front pivot connection being orthogonal to the optical axis and the first orthogonal direction.

3. The light-emitting module (1) according to claim 2, wherein, The projections of said front pivot connection (B, C) and said rear pivot connection (A, D) in a plane defined by the optical axis (O) and the first orthogonal direction (Y) define the vertices of a parallelogram.

4. The light-emitting module (1) according to claim 2 or 3, wherein, The front portion (412', 422') of each connecting element is connected to said support (3) by an additional hinge, said additional hinge allowing the lighting unit (10) and the connecting element (41', 42') to rotate about an inherent axis of rotation located in front of said front pivot connection (A, D) and oriented along said first orthogonal direction (Y).

5. The light-emitting module (1) according to any one of claims 1 to 4, wherein, The light-emitting unit (10) includes a groove (130) for receiving a locking screw (21) for attaching the light-emitting module (1) to a mounting element (50), the groove (130) being configured to allow the light-emitting unit (10) to move relative to the mounting element (50) when the locking screw (21) is loosened and to prevent the light-emitting unit (10) from moving relative to the mounting element (50) when the locking screw (21) is tightened.

6. A lighting device (100) for a motor vehicle, the lighting device comprising: A first light-emitting module (1a) and a second light-emitting module (2a), each of the first and second light-emitting modules being as claimed in any one of claims 1 to 5; and a mounting element (50), each of the first and second light-emitting modules (1a, 2a) being attached to the mounting element at an attachment point (51a, 51b).

7. The light emitting device (100) according to claim 6, wherein, The first light-emitting module (1a) is fixedly attached to the mounting element (50), and wherein the second light-emitting module (2a) is as claimed in claim 5 such that the light-emitting unit (10) of the second light-emitting module (2a) is adjustable relative to the mounting element (50).

8. The light-emitting device (100) according to claim 6 or 7, wherein, The mounting element (50) includes: an attachment wall (53) to which the light-emitting units (10) of the first and second light-emitting modules (1a, 2a) are attached at the attachment points (51a, 51b) of the first and second light-emitting modules; and at least two arms (55) extending from the attachment wall (53) towards the optical projection elements (20) of the first and second light-emitting modules (1a, 1b) and configured and hinged to be able to transmit a first movement to the first and second light-emitting modules (1a, 1b) to allow the light-emitting unit (10) of each of the first and second light-emitting modules (1a, 1b) to perform the first movement, and to be able to transmit a second movement to the first and second light-emitting modules (1a, 1b) to allow the light-emitting unit (10) of each of the first and second light-emitting modules (1a, 1b) to perform the second movement.

9. The light-emitting device (100) according to claim 8, wherein, Each of the arms (55) of the mounting element (50) includes a central portion (551), a front portion (552) and a rear portion (553), the central portion (551) and the rear portion (553) being hinged by a rearward pivot connection (Bp, Cp) the axis of which is orthogonal to the optical axis (O) and the first orthogonal direction (Y), and the central portion (551) and the front portion (552) being hinged by a forward pivot connection (Ap, Dp) the axis of which is orthogonal to the optical axis (O) and the first orthogonal direction (Y).

10. The light-emitting device (100) according to claim 9, wherein, The front pivot connectors (Ap, Dp) and the rear pivot connectors (Cp, Bp) define the vertices of a parallelogram in a projection in the plane defined by the optical axis (O) and the first orthogonal direction (Y).

11. The light-emitting device (100) according to one of claims 6 or 10, wherein, The central portions (411, 421) of the connecting elements (41, 42) of the first light emitting module and the second light emitting module (1a, 1b) have the same length.

12. The light emitting device (100) according to claim 11 in combination with claim 10, wherein, The central portion (551) of the arm (55) of the mounting element (50) has the same length as the central portions (411, 421) of the connecting elements (41, 42) of the first light emitting module and the second light emitting module (1a, 1b).

13. The light-emitting device (100) according to any one of claims 9 to 12, wherein, The front portion (552) of each arm (55) is connected by an additional hinge to a support (3) of one of the first light emitting module and the second light emitting module (1a, 1b), and the additional hinge allows the mounting element (50) to rotate about a main rotation axis (Ap'Dp') located in front of the front pivot connectors (Ap, Dp).

14. The light-emitting device (100) according to claim 13, wherein, For the first light emitting module and the second light emitting module (1a, 1b), the distance (d1) between the attachment point (51a, 51b) and the inherent rotation axis (A'D') of the light emitting unit (10) is the same as the distance (d2) between the attachment point (51a, 51b) and the main rotation axis (Ap'Dp') of the mounting element (50).

15. The light-emitting device according to claim 13 or 14, wherein The distance (d1) between the attachment point (51a) of the first light emitting module (1a) and the inherent rotation axis (A'D') of the light emitting unit (10) of the first light emitting module (1a) is the same as the distance (d1) between the attachment point (52a) of the second light emitting module (2a) and the inherent rotation axis (A'D') of the light emitting unit (10) of the second light emitting module (1b).

16. The light-emitting device according to any one of claims 13 to 15, wherein, The distance (d2) between the attachment point (51a) of the first module (1a) and the main rotation axis (Ap'Dp') of the mounting element (50) is the same as the distance (d2) between the attachment point (51b) of the second module (1b) and the main rotation axis (Ap'Dp') of the mounting element (50).

17. The light emitting device according to any one of claims 6 to 16, comprising a housing (101) having a recess (102), and the first light emitting module and the second light emitting module (1a, 1b) are arranged in the recess.

18. The light-emitting device according to claim 17, wherein, The housing includes an opening arranged in front of the recess (102), and the optical projection elements (20) of the first light emitting module and the second light emitting module (1a, 1b) close the opening of the housing (101).

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