EP3537040B1 - Luminous module and luminous device for motor vehicle comprising such a luminous module - Google Patents

Luminous module and luminous device for motor vehicle comprising such a luminous module Download PDF

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Publication number
EP3537040B1
EP3537040B1 EP19168257.4A EP19168257A EP3537040B1 EP 3537040 B1 EP3537040 B1 EP 3537040B1 EP 19168257 A EP19168257 A EP 19168257A EP 3537040 B1 EP3537040 B1 EP 3537040B1
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EP
European Patent Office
Prior art keywords
optical element
support
lighting device
light
light source
Prior art date
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Active
Application number
EP19168257.4A
Other languages
German (de)
French (fr)
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EP3537040A1 (en
Inventor
Michel Hermitte
Sébastien Bera
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Valeo Vision SAS
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Valeo Vision SAS
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/29—Attachment thereof
    • F21S41/295—Attachment thereof specially adapted to projection lenses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/005—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages with keying means, i.e. for enabling the assembling of component parts in distinctive positions, e.g. for preventing wrong mounting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/16—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting
    • F21V17/164—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting the parts being subjected to bending, e.g. snap joints
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141—Light emitting diodes [LED]
    • F21S41/143—Light emitting diodes [LED] the main emission direction of the LED being parallel to the optical axis of the illuminating device
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141—Light emitting diodes [LED]
    • F21S41/151—Light emitting diodes [LED] arranged in one or more lines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/19—Attachment of light sources or lamp holders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/19—Attachment of light sources or lamp holders
    • F21S41/192—Details of lamp holders, terminals or connectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/25—Projection lenses
    • F21S41/26—Elongated lenses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/29—Attachment thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
    • F21S45/40—Cooling of lighting devices
    • F21S45/47—Passive cooling, e.g. using fins, thermal conductive elements or openings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/06—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages the fastening being onto or by the lampholder
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
    • F21W2102/10—Arrangement or contour of the emitted light
    • F21W2102/13—Arrangement or contour of the emitted light for high-beam region or low-beam region
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • F21Y2103/10—Elongate light sources, e.g. fluorescent tubes comprising a linear array of point-like light-generating elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the field of the present invention is that of light modules for a motor vehicle, and in particular lighting and / or signaling modules.
  • a motor vehicle is equipped with projectors, or headlights, intended to illuminate the road in front of the vehicle, in particular at night or in bad weather.
  • These headlamps can generally be used in two lighting modes: a first “high beam” mode and a second “low beam” mode.
  • the “high beam” mode allows the road to be strongly illuminated far in front of the vehicle, at the risk of dazzling oncoming road users.
  • the “low beam” mode provides more limited illumination of the road, but nevertheless offers good visibility, without dazzling other road users. These two lighting modes are complementary.
  • the projectors can comprise one or more light modules comprising a light source, an optical deflection element, a projection optic, each of these elements being mounted on a support.
  • Each element of the module is fixed to the support by at least one fixing element, the support itself being fixed to the vehicle.
  • the elements usually constituting these light modules are generally bulky and complicated to assemble and parameterize so as to obtain light rays which meet photometric standards.
  • the present invention aims to provide a module luminous whose assembly and adjustment are simplified.
  • a light device for a motor vehicle comprises at least at least one light module, the light module comprising at least one light source, a support for the light source and an optical element capable of receiving rays emitted by the light source, the optical element comprising means for positioning this optical element on the support in a predetermined position and elastic fixing means of this optical element on the support in the predetermined position.
  • the luminous device comprises a plate on which are arranged the at least one luminous module and a projection lens, the projection lens forming a secondary optic while the optical element or elements associated with the light module form primary optics.
  • the predetermined position is understood as the desired theoretical position of the optical element relative to the position of the light source (s).
  • the positioning means make it possible to ensure the correct position of the optical element before it is fixed to the support of the light source. And according to the invention, the assembly of a light module is facilitated thanks to the integration of positioning means and elastic fixing means in the optical element, thus reducing the number of assembly steps or the risk of Game.
  • the support of the light source is arranged so as to receive at least one printed circuit board and / or one electronic component, or else so as to directly form this printed circuit board on which the light sources and the electronic components are mounted.
  • the support may consist of a flat wall against which a printed circuit board is pressed, the light source being fixed on this board.
  • the optical element is arranged against the support. It can in particular be plated on the support, that is to say that one of the surfaces of the optical element, particularly the projecting face from which the elastic fixing means extend, is in contact with one of the faces of the support.
  • the optical element may further include at least one arrangement intended to receive an electronic component arranged on the support.
  • This arrangement may for example comprise a window formed in the volume of the optical element, or even a specific convex shape of the optical element forming a clearance with respect to the support.
  • the optical element may include at least one arrangement in the form of a recess intended to allow air to pass to the support, to allow the cooling of one or more components, in particular electronic, of the light module, and for example the sources. bright.
  • the arrangement practiced may in particular consist of one or more windows passing through the optical element.
  • the positioning means of the optical element can comprise male elements, respectively female, configured to cooperate with female elements, respectively male, carried by the support of the light source.
  • the bore can take the form of an oblong hole.
  • one of the half-moons at the end of the oblong hole is wider than the half-moon at the other end of the oblong hole. Provision can then be made for the pin cooperating with this oblong hole to have a corresponding shape, the association of the two shapes with each other acting as a polarizer.
  • the pin of the positioning means of the optical element is dimensioned so as to be able to enter the bore on the side of the wider half-moon and then to be put in place and retained on the side of the half-moon. narrowest moon.
  • the positioning means of the optical element to include at least one upright of the elastic fixing means and that the positioning means Complements comprise at least one bearing surface formed by an edge of the support, the upright resting on the bearing surface to bring the optical element into the predetermined position.
  • the elastic fixing means comprise at least one elastic blade, carried in particular by a segment or a frame extending projecting from the optical element, configured to cooperate with the rim of a plate, the elastic blades being deformed when passing through. the optical element along this rim to resume their original position and snap behind this rim when the optical element is in the predetermined position.
  • the elastic blades will deform elastically in contact with the plate to resume their original shape behind the latter, the edge of the plate. then forming a stop against the release of the elastic blades.
  • the blades have a shape suitable for being elastically deformed in one direction of passage and for being blocked in the other direction, and for example an inclined plane and a stop at the free end of this inclined plane.
  • the elastic fixing means and the support are configured to cooperate only in a predetermined position of the optical element on the support.
  • the elastic fixing means comprise a frame and the elastic blade carried by this frame, and each frame comprises an upright configured to come into contact with a fitting formed in the support.
  • This arrangement may take any form allowing cooperation with the upright, and may in particular take the form of a shoulder on which the upright of the frame rests.
  • the elastic fixing means can on the one hand participate in the positioning by the shape of the frame and the uprights that compose it, and their cooperation with shapes complementary elements provided on the support, before also playing their role of maintaining the optical element in this predetermined position
  • the optical element is made of a transparent or translucent material.
  • the transparent or translucent material can comprise polycarbonate (PC), polymethyl methacrylate (PMMA), silicone or any related material. Provision may be made for certain parts of the optical element to be made of a material different from that used for the rest of the other parts of this optical element.
  • the elastic fixing means are essentially composed of polycarbonate and / or polymethyl methacrylate, while the rest of the optical element is composed of silicone. This ensures that the part of the optical element directly facing the light sources or the electronic components arranged on the support is made of silicone which is a material more resistant to the heat produced by these components.
  • the optical element can be produced by any industrial process used for the manufacture of similar parts. Alternatively, the optical element is produced by molding or by injection. Each element or sub-parts of the optical element can be produced according to a different process from that used to manufacture the other elements or sub-parts of the optical element.
  • the optical element can comprise one or more optical elements, forming by way of example at least one microlens playing the role of primary optical directly in the vicinity of the light source (s), in particular in applications in light devices for motor vehicles where the light modules are mounted on a plate on which is also positioned a projection lens thus forming a secondary optic.
  • the optical element can include a plurality of microlenses, each microlens being intended to cooperate with a separate light source, by being opposite this light source when the support element is in. the predetermined position relative to the support.
  • Each pair formed by a light source and a microlens is configured to participate in the formation of a selectively activatable light segment, in particular by independent control of each of the light sources.
  • selectively activatable it will be understood that the light segment can be activated, either automatically or by an action of the user, independently or not of other light segments, adjacent or not.
  • the elastic fixing means extend on either side of the optical elements.
  • the optical element is then relatively disposed on the support by resting on the upper part of the support and by resting on the lower part of the support.
  • These two supports are made at an equal distance, or essentially at an equal distance from the microlenses. This arrangement ensures that the microlenses are in a position where they collaborate with the light source regardless of manufacturing tolerances which could lead to a positioning problem.
  • the light module may further include at least one thermal conduction member.
  • the thermal conduction member is in particular designed to conduct the heat emitted by the light source to a heat sink.
  • the thermal conduction member comprises a base, configured to be in contact with the support, and at least one gripping finger for positioning the thermal conduction member.
  • the base can be made from material with the gripping finger, or it can be made separately.
  • the gripping finger has at least one orifice to allow the gripping of the heat conduction member.
  • the orifice (s) are arranged to allow the gripping finger to be gripped, in particular by an adjustment machine, in order to correctly orient the thermal conduction member so that, when the thermal conduction member (s) are in a predetermined position, the or the supports can be arranged on the corresponding thermal conduction.
  • the base, the support and the optical element each comprise a fixing orifice, the orifices coming into vis-à-vis to receive a fixing means.
  • the mounting holes of the holder and the optical element are slightly larger than that of the base, in order to compensate for a deviation due to manufacturing tolerances.
  • the fastening means can be a screw, a rivet, a die, glue or any other suitable fastening means.
  • the fixing means is a screw.
  • the base fixing hole has a thread corresponding to that of the screw. The fixing of all the elements of the light module together is ensured by a single fixing means.
  • the base comprises at least one indexing pin and the light source support comprises at least one indexing hole.
  • the indexing pins are intended to cooperate with the indexing holes to correctly position the support on the base before it is fixed by the fixing means described above.
  • the indexing pins have a shape and dimensions complementary to those of the indexing holes.
  • optical element is held in place on the support without the last fixing screw, in particular thanks to the joint action of indexing means, elastic fixing means and the collaboration of the uprights on the shoulder.
  • the assembly of an optical element, a bracket and a base has the advantage of creating a light module, which can be easily assembled and adjusted in a vehicle headlight.
  • the invention relates to a light device comprising the light module as described above with a light source support, the light source and the optical element, as well as a projection lens forming a secondary optic configured to receive and deflect the rays. light deflected by the optical element therefore forming the primary optic.
  • Each pair formed by a light source and a primary optic can cooperate with a secondary optic which is specific to them, or else with a common secondary optic.
  • the lighting device described by the invention can be used advantageously for headlights equipped with an ADB (Adaptive Driving Beam) function of adaptive lighting.
  • ADB Adaptive Driving Beam
  • Such an ADB function is intended to automatically detect a road user liable to be dazzled by a lighting beam emitted in high beam mode by a headlamp, and to modify the contour of this lighting beam in such a way. to create a shadow zone at the location of the detected user.
  • the advantages of the ADB function are multiple: ease of use, better visibility compared to lighting in low beam mode, better reliability for changing modes, greatly reduced risk of dazzling, safer driving.
  • the possibility of modifying the lighting beam is ensured by the division of all the rays emitted by the light sources into selectively activatable vertical segments. This division is ensured by the separation of the light rays by the specific association of a light source and a microlens, the assembly producing little or no parasitic rays due to the presence of a microlens in the direct vicinity of 'a source.
  • the light module according to the invention is therefore particularly suitable for the application of an ADB function.
  • the longitudinal, vertical and transverse names relate to an axis corresponding to the general direction of the rays emitted by the light source.
  • the longitudinal direction corresponds to the general direction of the light rays emitted by the light source.
  • the forward direction designates the direction of emission of light rays by the light source, the rear direction designating the reverse direction.
  • the light module 1 comprises at least one light source 2, a support 3 for the light source 2 and an optical element 4 arranged on the path of the rays emitted by the light source 2, in particular to deflect them and arrange them to participate in the creation. a motor vehicle lighting and / or signaling beam.
  • light module 1 has five light sources 2.
  • the support 3 has the general shape of a thin plate, delimited by a first face 39 where the light sources 2 are arranged, and a second face 391 opposite the first. These two faces are delimited by an upper edge, a lower edge, and two side edges.
  • the support 3 can in particular comprise a printed circuit board, on which the light sources 2 and electronic components are arranged.
  • the end of the first face 39 of the support 3 in the vicinity of the upper edge is narrower than the end of the first face 39 in the vicinity of the lower edge.
  • the width reduction is achieved by at least one narrowing zone 36 formed by a shoulder 37, which creates a bearing surface 38 substantially parallel to the upper edge of the support 3.
  • the light sources 2 are arranged on the part of the support 3 arranged between the constriction zone 36 and the lower edge.
  • the light sources 2 are arranged in a transverse series, perpendicular to the lateral edges of the support 3.
  • the support 3 comprises, on the first face 39 between the lower edge and the light sources 2, one or more electronic components 31.
  • These electronic components 31 can be of any type and of any nature allowing the accomplishment of a related function. with the light module 1, such as the selective activation of one or more light sources 2.
  • the support 3 further comprises a first indexing orifice 32 and a second indexing orifice 33, one arranged in the vicinity of the upper edge of the support 3 and the other in the vicinity of the lower edge.
  • These orifices 32, 33 have in the example illustrated a section of cylindrical or essentially cylindrical shape.
  • the two indexing orifices 32, 33 can pass through, that is to say extend from one face to the other of the support 3.
  • the support 3 further comprises an indexing hole 34 of oblong shape, which is arranged in the vicinity of the first indexing orifice 32 and the light sources 2, and a central bore 35, passing through.
  • the optical element 4 is arranged opposite the first face 39 of the support 3, namely the face on which the light sources 2 are arranged.
  • the optical element 4 has the shape of a thin plate, delimited by an internal face. 49 brought opposite the support 3 when the light module is assembled, and an external face 40 opposite the internal face 49.
  • the width and the thickness of the optical element 4 are essentially identical to those of the support 3, and of which the length is less than that of the support 3. Depending on the orientation chosen and in particular illustrated on the figure 1 , the width corresponds to the dimension of the optical element 4 and of the support 3 in the transverse direction, the thickness corresponds to the dimension of the optical element 4 and of the support 3 in the longitudinal direction and the length corresponds to the dimension of the optical element 4 and of the support 3 in the vertical direction.
  • the optical element 4 comprises an elastic holding portion 62, a processing portion 64 of the light rays as well as a fixing portion 66.
  • the portion 64 for processing the light rays of the optical element 4 comprises one or more microlenses 42, which in the example illustrated are arranged in a transverse series.
  • the microlens 42 extend projecting from the external face 40 of the optical element 4, having a hemispherical or essentially hemispherical shape, arranged to collaborate with the light sources 2.
  • the microlenses microlenses 42 are aligned opposite the light sources 2 when the optical element 4 is attached against the support 3, with a longitudinal clearance so as not to crush the light sources 2 when the optical element 4 is pressed against the support 3.
  • the microlenses 42 collaborate with the light sources 2 so as to project in a controlled manner the light rays emitted by the light sources 2.
  • microlenses 42 form primary optics 41 when, as will be described below, the light module 1 that participates in forming the optical element 4 is mounted in a light device 10 further comprising a projection lens 104 therefore forming a secondary lens.
  • the optical element 4 further comprises a recess 43 and the microlenses 42 are arranged along one of the edges defining this recess.
  • the recess is essentially rectangular in shape. It will be understood that the role of this recess 43 is to allow the release by air circulation of the heat produced by the light sources 2.
  • the optical element 4 comprises an arrangement 44 arranged for create a clearance between the optical element 4 and the support 3 when these two parts are pressed against each other. It is thus possible to place a bulky electronic component on the support 3.
  • the optical element 4 comprises, on the internal face 49, an indexing pin 45 (visible on the figure 2 ) oblong, disposed on an edge defining the recess 43 opposite the microlenses 42.
  • the indexing pin 45 of the optical element 4 extends in support direction 3.
  • the fixing portion 66 of the optical element 4 comprises a through bore 47.
  • the bore 47 has a circular shape.
  • the elastic holding portion 62 of the optical element 4 comprises two elastic fixing means 46 arranged respectively on each of the lateral edges of the optical element 4. These elastic fixing means 46 are arranged on either side of the optical element 4, in the vicinity of the upper edge of the optical element 4.
  • the elastic fixing means 46 extend substantially perpendicularly the plate forming the support element, on the side of the internal face 49, that is to say that these elastic fixing means 46 extend opposite the microlenses 42.
  • Each elastic fixing means 46 comprises a frame 461 and an elastic blade 462.
  • the frame 461 is formed by two longitudinal uprights 463 made from the material of the plate of the optical element 4 and extending substantially perpendicularly thereto, at the level of one of the lateral edges of the optical element 4.
  • the two longitudinal uprights 463 are connected at their free end by a segment 464, arranged in this way at a distance from the plate of the optical element 4 and which carries in its middle the elastic blade 462, which extends from the segment 464 in the direction of approach of the plate of the optical element 4.
  • This elastic blade 462 is inclined with respect to the parallel longitudinal uprights 463 insofar as it extends towards the interior of the optical element 4. In other words, it has a transverse component so as to extend in the direction of the approach of the blade elastic 462 of the other elastic fixing means 46.
  • the resilient fixing portion 66 is configured such that, when the optical element 4 is in the predetermined position, each of the frames 461, and more particularly the longitudinal post 463 lower, rests on the bearing surface 38 formed by the corresponding shoulder 37 of the support 3, and the free end of each elastic blade 462, opposite the segment 464, is in contact with the second face 391 of the support .
  • the cooperation of the uprights 463 and elastic blades 462 of the optical element 4 with the appropriate shapes provided on the support 3 participate in maintaining the optical element 4 in position.
  • the light module 1 further comprises a thermal conduction member 8 on which the support 3 is pressed.
  • the thermal conduction member 8 comprises a base 5, of shape and dimensions essentially similar to those of the support 3.
  • the base 5 has a contact face 50 on which are provided at least a first indexing pin 51 and a second indexing pin 52, of a shape complementary to the first and second orifices 32, 33 formed in the support.
  • these indexing pins 51, 52 are arranged opposite the indexing holes 32, 33 of the support 3, so as to allow the positioning of the support 3 relative to the base 5 .
  • the base 5 also comprises, on the face opposite to the contact face 50 on which the support 3 is pressed, at least one first gripping finger 55 extending perpendicularly to the base 5 and arranged at one end of the base 5, in the vicinity here from the top edge.
  • first gripping finger 55 extending perpendicularly to the base 5 and arranged at one end of the base 5, in the vicinity here from the top edge.
  • second gripping finger 56 so that these gripping fingers 55, 56 are each disposed on one end of the base 5.
  • the gripping fingers 55, 56 can extend over all or part of the base width 5.
  • the gripping fingers 55, 56 are both intended to allow the base 5 to be gripped in order to obtain the correct orientation of this base 5 and therefore of the whole of the light module 1 before its fixing in a lighting and / or signaling device in the vehicle.
  • the first gripping finger 55 has two gripping orifices 57, 58, configured to work with any machine tool useful for the manufacture, assembly or adjustment of the light module 1.
  • the gripping orifices 57, 58 are arranged on the upper face of the first gripping finger 55. In the embodiment of the example, one of the gripping orifices 57, 58 is through and the other is not.
  • the base 5 further comprises a fixing hole 59 which extends in the thickness of the base from the face opposite the contact face 50 on which the support 3 is made to be pressed.
  • this fixing hole 59 is through, that is to say that it opens onto the contact face 50, but it will be understood that it can be blind.
  • This fixing hole 59 is intended to participate in the fixing of the base 5 and therefore of the whole of the light module 1 on a housing of a lighting device and / or signaling. It can in particular be tapped to receive a fixing screw 7.
  • the base 5 comprises an indexing eyelet 53, of oblong shape substantially equal to the oblong shape of the indexing hole 34 made in the support 3.
  • the base 5 also comprises, substantially at its center, a threaded bore 54, which extends in the thickness of the base 5 from the contact face 50 arranged to be in contact with the support 3.
  • a threaded bore 54 which extends in the thickness of the base 5 from the contact face 50 arranged to be in contact with the support 3.
  • the threaded bore 54 does not pass through and consists of a blind hole.
  • the indexing pin 45 of the optical element 4 is arranged to collaborate with the indexing hole 34 and the indexing eyelet 53 to participate in the positioning of the optical element 4 on the support 3.
  • the figure 3 illustrates a light module 1 assembled according to the invention.
  • the support 3 is placed on the thermal conduction member 8, and more particularly on its base 5.
  • the second face 391 of the support 3 is positioned opposite the contact face 50. It is aligned. substantially the edges of the base 5 and those of the support 3, and the indexing means are thus made to correspond.
  • the indexing pins 51, 52 carried by the base 5 enter the indexing orifices 32, 33 formed in the support, and the relative position of the support 3 with respect to the base 5 is thus ensured.
  • the indexing eyelet 53 is located opposite the indexing hole 34 of the support 3, and the central bore 35 of the support 3 is aligned with the central threaded bore 54 disposed on the base 5. It should be noted that the central bore 35 has a diameter greater than that of the central threaded bore 54.
  • the optical element 4 is then placed on the support 3, with the internal face 49 of the optical element 4 and the first face 39 of the support 39 facing each other.
  • the elastic fixing means 46 are then turned towards the support 3.
  • a pre-positioning of the optical element 4 is carried out by resting the lower longitudinal upright 463 of the frame 461 of each resilient fixing means 46 on the bearing surface 38 formed by the shoulder edge 37 produced. on the support 3.
  • the optical element 4 is then made to slide longitudinally, that is to say perpendicular to the plane defined by the support 3, along this support surface 38, it being understood that the shape of the base 5 is defined so as not to hinder this sliding.
  • the elastic blades 462 which in their original shape are inclined as they approach the center of the optical element 4, come into contact with the lateral edge of the support 3.
  • the elastic blades 462 are configured to deform elastically outwardly of the optical element 4 and allow sliding.
  • the indexing pin 45 arranged on the internal face 49 of the optical element 4 arrives in sight of the indexing hole 34 made in the support 3. This may result in an adjustment of the position of the optical element 4 relative to the support 3, to allow the insertion of the indexing pin 45 in the hole.
  • indexing 34 then in the indexing eyelet 53 formed in the base 5 and arranged in the immediate extension of the indexing hole 34. Consequently, the frame 461 of the elastic fixing means 46 and the indexing pin 45 d 'on the one hand, and the bearing surface 38 formed by the shoulder edge 37 and the indexing hole 34 on the other hand form means for positioning the optical element 4 on the support in a determined position.
  • the optical element 4 is in contact with the support 3, or in the direct vicinity of the latter, it being understood that these parts are configured so that the light sources 2 are not crushed by the optical element 4 in this desired position.
  • the microlenses 42 are provided at the edge of the recess 43 with a slight longitudinal offset with respect to the internal face 49 of the optical element 4. Provision may also be made to spare on the optical element 4, as visible on the figure. figure 2 , beads 490 making it possible to press the optical element 4 onto the support 3 without crushing the light sources 2.
  • These three bores 54, 35, 47 are thus aligned and therefore configured to receive a first fixing means 6, it being understood that the through bore 47 of the optical element 4 has a larger diameter than that of the central threaded bore 54 of the base 5.
  • the elastic blades 462 In the predetermined position, the elastic blades 462 have passed beyond the support plate 3 and they are no longer in contact with a lateral edge of this plate. Therefore, they return to their original shape, and tend to approach one another, towards the center of the optical element 4. The free end of each elastic blade 462 then comes into position behind the support plate 3, opposite the second face 391. The support 3 then forms a stop against the release of the elastic blades 462 and therefore the release of the optical element 4. If it is desired to replace the optical element 4, it is necessary to act on the elastic blades 462. , to force them with a particular effort to move them away from one another and release them from the support 3. In operation, without external intervention by an operator, the position of the optical element 4 relative to the support 3 and therefore the position of the microlenses 42 relative to the light sources 2 is reliable.
  • the first fixing means 6 is used to hold together the optical element 4, the support 3 and the base 5.
  • the first fixing means 6 is in the example illustrated a fixing screw, the head of the screw. fixing being on the side of the optical element 4.
  • the optical element 4 is then relatively fixed to the support 3 at three points, and it can be seen that the center of these three points is positioned substantially in the vicinity of the microlenses 42, so that a reliable position of the microlenses 42 is ensured. compared to light sources 2 regardless of manufacturing tolerances.
  • the method for mounting the light module 1 according to the invention described below only constitutes an example of mounting. It is in no way limiting, and provision could in particular be made to first mount the optical element 4 on the support 3, then to mount this sub-assembly on the thermal conduction member 8 and its base 5.
  • the light module 1 thus formed can then be mounted on a housing or a plate of a light device by means of a second fixing means 7, in particular a fixing screw, cooperating with the fixing hole 59 made in the base 5.
  • the figure 4 illustrates a light device 10 comprising several light modules 1 according to the invention, and in particular constituted as has just been described of a thermal conduction member 8, of a support 3 and an optical element 4 forming a sub-assembly capable of being produced separately and subsequently attached to the housing or the plate of the lighting device.
  • Each light module 1 according to the invention is fixed to a plate 102 by a second fixing means 7.
  • the light modules 1 are arranged on an axial end of the plate 102 and they are carried by a vertical wall. 110 of the plate 102, which also carries, on the opposite face, a heat sink 9, here of the fin type.
  • the device also comprises a lens 104, arranged at an axial end of the plate 102 opposite to that where the light modules 1 are arranged.
  • An optical system is thus formed comprising a primary optic 41 formed by the microlenses 42 directly in the vicinity of the sources. lights 2 and a secondary optic 104, each of these optics being configured to participate in the formation of a motor vehicle lighting and / or signaling beam on the basis of the light rays initially emitted by the light sources 2.
  • the support 3 comprises seven light sources 2, the optical element 4 for its part correspondingly comprising seven microlenses 42 forming primary optics 41.
  • the support 3 has an enlargement of its width at the level of the processing portion 64 of the rays in order to accommodate the series of light sources 2.
  • the other characteristics and elements of the light module 1 in this second embodiment are identical. or essentially identical to those set out in the description of the first embodiment.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)

Description

Le domaine de la présente invention est celui des modules lumineux pour véhicule automobile, et notamment les modules d'éclairage et/ou de signalisation.The field of the present invention is that of light modules for a motor vehicle, and in particular lighting and / or signaling modules.

Un véhicule automobile est équipé de projecteurs, ou phares, destinés à éclairer la route devant le véhicule, notamment la nuit ou en cas d'intempéries. Ces projecteurs peuvent généralement être utilisés selon deux modes d'éclairage : un premier mode « feux de route » et un deuxième mode « feux de croisement ». Le mode « feux de route » permet d'éclairer fortement la route loin devant le véhicule, au risque d'éblouir les usagers de la route venant en sens inverse. Le mode « feux de croisement » procure un éclairage plus limité de la route, mais offrant néanmoins une bonne visibilité, sans éblouir les autres usagers de la route. Ces deux modes d'éclairage sont complémentaires.A motor vehicle is equipped with projectors, or headlights, intended to illuminate the road in front of the vehicle, in particular at night or in bad weather. These headlamps can generally be used in two lighting modes: a first “high beam” mode and a second “low beam” mode. The "high beam" mode allows the road to be strongly illuminated far in front of the vehicle, at the risk of dazzling oncoming road users. The "low beam" mode provides more limited illumination of the road, but nevertheless offers good visibility, without dazzling other road users. These two lighting modes are complementary.

Dans chacun de ces modes de fonctionnement, afin d'éviter l'éblouissement des usagers de la route venant en sens inverse, il est nécessaire de maitriser le positionnement et l'orientation de chacun des projecteurs, et plus particulièrement de chacun des éléments composant ces projecteurs.In each of these operating modes, in order to avoid dazzling oncoming road users, it is necessary to control the positioning and orientation of each of the headlamps, and more particularly of each of the elements making up these spotlights.

Les projecteurs peuvent comprendre un ou plusieurs modules lumineux comportant une source lumineuse, un élément de déviation optique, une optique de projection, chacun de ces éléments étant monté sur un support. Chaque élément du module est fixé au support par au moins un élément de fixation, le support étant lui-même fixé au véhicule.The projectors can comprise one or more light modules comprising a light source, an optical deflection element, a projection optic, each of these elements being mounted on a support. Each element of the module is fixed to the support by at least one fixing element, the support itself being fixed to the vehicle.

Les éléments constituant habituellement ces modules lumineux sont généralement encombrants et compliqués à assembler et à paramétrer de façon à obtenir des rayons lumineux qui respectent les normes photométriques.The elements usually constituting these light modules are generally bulky and complicated to assemble and parameterize so as to obtain light rays which meet photometric standards.

Le document DE102008055936 divulgue un dispositif lumineux selon le préambule de la revendication 1.The document DE102008055936 discloses a light device according to the preamble of claim 1.

Dans ce contexte, la présente invention vise à proposer un module lumineux dont le montage et le réglage sont simplifiés.In this context, the present invention aims to provide a module luminous whose assembly and adjustment are simplified.

Un dispositif lumineux pour véhicule automobile selon l'invention comporte au moins au moins un module lumineux, le module lumineux comportant au moins une source lumineuse, un support de la source lumineuse et un élément optique apte à recevoir des rayons émis par la source lumineuse, l'élément optique comportant des moyens de positionnement de cet élément optique sur le support dans une position prédéterminée et des moyens de fixation élastiques de cet élément optique sur le support dans la position prédéterminée. Le dispositif lumineux comporte une platine sur laquelle sont disposés le au moins un module lumineux et une lentille de projection, la lentille de projection formant une optique secondaire alors que le ou les éléments optiques associés au module lumineux forment des optiques primaires.A light device for a motor vehicle according to the invention comprises at least at least one light module, the light module comprising at least one light source, a support for the light source and an optical element capable of receiving rays emitted by the light source, the optical element comprising means for positioning this optical element on the support in a predetermined position and elastic fixing means of this optical element on the support in the predetermined position. The luminous device comprises a plate on which are arranged the at least one luminous module and a projection lens, the projection lens forming a secondary optic while the optical element or elements associated with the light module form primary optics.

La position prédéterminée s'entend comme la position théorique souhaitée de l'élément optique par rapport à la position de la ou des sources lumineuses.The predetermined position is understood as the desired theoretical position of the optical element relative to the position of the light source (s).

Les moyens de positionnement permettent d'assurer la position correcte de l'élément optique avant sa fixation sur le support de la source lumineuse. Et selon l'invention, l'assemblage d'un module lumineux est facilité grâce à l'intégration de moyens de positionnement et de moyens de fixation élastique dans l'élément optique, diminuant ainsi le nombre d'étapes de montage ou le risque de jeu.The positioning means make it possible to ensure the correct position of the optical element before it is fixed to the support of the light source. And according to the invention, the assembly of a light module is facilitated thanks to the integration of positioning means and elastic fixing means in the optical element, thus reducing the number of assembly steps or the risk of Game.

Le support de la source lumineuse est aménagé de façon à recevoir au moins une carte de circuits imprimés et/ou un composant électronique, ou bien de façon à former directement cette carte de circuits imprimés sur laquelle sont montés les sources lumineuses et les composants électroniques. A titre d'exemple non limitatif, le support peut consister en une paroi plane contre laquelle est plaquée une carte de circuits imprimés, la source de lumière étant fixée sur cette carte.The support of the light source is arranged so as to receive at least one printed circuit board and / or one electronic component, or else so as to directly form this printed circuit board on which the light sources and the electronic components are mounted. By way of non-limiting example, the support may consist of a flat wall against which a printed circuit board is pressed, the light source being fixed on this board.

L'élément optique est agencé contre le support. Il peut notamment être plaqué sur le support, c'est-à-dire que l'une des surfaces de l'élément optique, particulièrement la face en saillie de laquelle s'étendent les moyens de fixation élastiques, est en contact avec l'une des faces du support.The optical element is arranged against the support. It can in particular be plated on the support, that is to say that one of the surfaces of the optical element, particularly the projecting face from which the elastic fixing means extend, is in contact with one of the faces of the support.

L'élément optique peut comporter en outre au moins un aménagement destiné à recevoir un composant électronique disposé sur le support. Cet aménagement peut par exemple comprendre une fenêtre pratiquée dans le volume de l'élément optique, ou encore une forme spécifique bombée de l'élément optique formant dégagement par rapport au support.The optical element may further include at least one arrangement intended to receive an electronic component arranged on the support. This arrangement may for example comprise a window formed in the volume of the optical element, or even a specific convex shape of the optical element forming a clearance with respect to the support.

L'élément optique peut comporter au moins un aménagement sous forme d'évidement destiné à laisser passer de l'air vers le support, pour permettre le refroidissement d'un ou plusieurs composants, notamment électroniques, du module lumineux, et par exemple les sources lumineuses. L'aménagement pratiqué peut notamment consister en une ou plusieurs fenêtres traversant l'élément optique.The optical element may include at least one arrangement in the form of a recess intended to allow air to pass to the support, to allow the cooling of one or more components, in particular electronic, of the light module, and for example the sources. bright. The arrangement practiced may in particular consist of one or more windows passing through the optical element.

Les moyens de positionnement de l'élément optique peuvent comprendre des éléments mâles, respectivement femelles, configurés pour coopérer avec des éléments femelles, respectivement mâles, portés par le support de la source de lumière. A titre d'exemple non limitatif, on pourra prévoir que les moyens de positionnement portés par l'élément optique prennent la forme d'un ou plusieurs pions complémentaire(s) d'un ou plusieurs alésages réalisés dans le support. Notamment, l'alésage peut prendre une forme de trou oblong. Dans un mode de réalisation particulier, l'une des demi-lunes à l'extrémité du trou oblong est plus large que la demi-lune à l'autre extrémité du trou oblong. On peut alors prévoir que le pion coopérant avec ce trou oblong a une forme correspondante, l'association des deux formes entre elles agissant comme un détrompeur. Dans une autre alternative, le pion des moyens de positionnement de l'élément optique est dimensionné de façon à pouvoir entrer dans l'alésage du côté de la demi-lune plus large puis à être mis en place et retenu du côté de la demi-lune la plus étroite.The positioning means of the optical element can comprise male elements, respectively female, configured to cooperate with female elements, respectively male, carried by the support of the light source. By way of non-limiting example, provision can be made for the positioning means carried by the optical element to take the form of one or more complementary pins (s) of one or more bores made in the support. In particular, the bore can take the form of an oblong hole. In a particular embodiment, one of the half-moons at the end of the oblong hole is wider than the half-moon at the other end of the oblong hole. Provision can then be made for the pin cooperating with this oblong hole to have a corresponding shape, the association of the two shapes with each other acting as a polarizer. In another alternative, the pin of the positioning means of the optical element is dimensioned so as to be able to enter the bore on the side of the wider half-moon and then to be put in place and retained on the side of the half-moon. narrowest moon.

Selon une caractéristique de l'invention, on peut prévoir que les moyens de positionnement de l'élément optique comportent au moins un montant des moyens de fixation élastique et que des moyens de positionnement complémentaires comportent au moins une surface d'appui formée par un bord du support, le montant s'appuyant sur la surface d'appui pour amener l'élément optique dans la position prédéterminée.According to one characteristic of the invention, provision can be made for the positioning means of the optical element to include at least one upright of the elastic fixing means and that the positioning means Complements comprise at least one bearing surface formed by an edge of the support, the upright resting on the bearing surface to bring the optical element into the predetermined position.

Les moyens de fixation élastique comprennent au moins une lame élastique, portée notamment par un segment ou un cadre s'étendant en saillie de l'élément optique, configurée pour coopérer avec le rebord d'une plaque, les lames élastiques étant déformées au passage de l'élément optique le long de ce rebord pour reprendre leur position d'origine et s'encliqueter en arrière de ce rebord lorsque l'élément optique est dans la position prédéterminée.The elastic fixing means comprise at least one elastic blade, carried in particular by a segment or a frame extending projecting from the optical element, configured to cooperate with the rim of a plate, the elastic blades being deformed when passing through. the optical element along this rim to resume their original position and snap behind this rim when the optical element is in the predetermined position.

Par encliquetage, on comprend que lors de la mise en place de l'élément optique sur le support, les lames élastiques vont se déformer élastiquement au contact de la plaque pour reprendre leur forme d'origine derrière celle-ci, le rebord de la plaque formant alors butée à l'encontre du dégagement des lames élastiques. Les lames présentent à cet effet une forme appropriée pour être déformée élastiquement dans un sens de passage et pour être bloquée dans l'autre sens, et par exemple un plan incliné et une butée à l'extrémité libre de ce plan incliné. Une fois l'élément optique en place, les lames élastiques ne sont plus comprimées par les bords du support et elles reprennent leur forme initiale, ce qui les amène en contact au niveau de la face de la plaque tournée à l'opposé de l'élément optique.By snap-fastening, it is understood that when the optical element is placed on the support, the elastic blades will deform elastically in contact with the plate to resume their original shape behind the latter, the edge of the plate. then forming a stop against the release of the elastic blades. For this purpose, the blades have a shape suitable for being elastically deformed in one direction of passage and for being blocked in the other direction, and for example an inclined plane and a stop at the free end of this inclined plane. Once the optical element is in place, the elastic blades are no longer compressed by the edges of the support and they return to their initial shape, which brings them into contact at the level of the face of the plate facing away from the optical element.

Les moyens de fixation élastique et le support sont configurés pour ne coopérer que dans une position prédéterminée de l'élément optique sur le support. Plus particulièrement, les moyens de fixation élastique comportent un cadre et la lame élastique portée par ce cadre, et chaque cadre comporte un montant configuré pour venir en contact sur un aménagement formé dans le support. Cet aménagement peut prendre toute forme permettant la coopération avec le montant, et peut notamment prendre la forme d'un épaulement sur lequel le montant du cadre vient reposer.The elastic fixing means and the support are configured to cooperate only in a predetermined position of the optical element on the support. More particularly, the elastic fixing means comprise a frame and the elastic blade carried by this frame, and each frame comprises an upright configured to come into contact with a fitting formed in the support. This arrangement may take any form allowing cooperation with the upright, and may in particular take the form of a shoulder on which the upright of the frame rests.

On peut observer de ce qui précède que les moyens de fixation élastiques peuvent d'une part participer au positionnement par la forme du cadre et des montants qui le composent, et leur coopération avec des formes complémentaires ménagées sur le support, avant de jouer d'autre part leur rôle de maintien de l'élément optique dans cette position prédéterminéeIt can be seen from the above that the elastic fixing means can on the one hand participate in the positioning by the shape of the frame and the uprights that compose it, and their cooperation with shapes complementary elements provided on the support, before also playing their role of maintaining the optical element in this predetermined position

L'élément optique est réalisé dans un matériau transparent ou translucide. A titre d'exemple non limitatif, le matériau transparent ou translucide peut comprendre du polycarbonate (PC), du polyméthacrylate de méthyle (PMMA), du silicone ou tout matériau apparenté. On pourra prévoir que certaines parties de l'élément optique soient réalisés dans un matériau différent de celui utilisé pour le reste des autres parties de cet élément optique. A titre d'exemple, les moyens de fixation élastique sont essentiellement composés de polycarbonate et/ou de polyméthacrylate de méthyle, tandis que le reste de l'élément optique est composé de silicone. On s'assure ainsi que la partie de l'élément optique directement en regard des sources lumineuses ou des composants électroniques agencés sur le support est réalisée en silicone qui est un matériau plus résistant à la chaleur produite par ces composants.The optical element is made of a transparent or translucent material. By way of non-limiting example, the transparent or translucent material can comprise polycarbonate (PC), polymethyl methacrylate (PMMA), silicone or any related material. Provision may be made for certain parts of the optical element to be made of a material different from that used for the rest of the other parts of this optical element. By way of example, the elastic fixing means are essentially composed of polycarbonate and / or polymethyl methacrylate, while the rest of the optical element is composed of silicone. This ensures that the part of the optical element directly facing the light sources or the electronic components arranged on the support is made of silicone which is a material more resistant to the heat produced by these components.

L'élément optique peut être réalisé par tout procédé industriel utilisé pour la fabrication de pièces semblables. Alternativement, l'élément optique est réalisé par moulage ou par injection. Chaque élément ou sous-parties de l'élément optique peut être réalisé selon un procédé différent de celui utilisé pour fabriquer les autres éléments ou sous-parties de l'élément optique.The optical element can be produced by any industrial process used for the manufacture of similar parts. Alternatively, the optical element is produced by molding or by injection. Each element or sub-parts of the optical element can be produced according to a different process from that used to manufacture the other elements or sub-parts of the optical element.

L'élément optique peut comprendre un ou plusieurs éléments optiques, formant à titre d'exemple au moins une microlentille jouant le rôle d'optique primaire directement au voisinage de la ou les sources lumineuses notamment dans des applications dans des dispositifs lumineux pour véhicule automobile où les modules lumineux sont montés sur une platine sur laquelle est également positionnée une lentille de projection formant alors une optique secondaire. Dans le module lumineux selon l'invention, on peut prévoir que l'élément optique comporte une pluralité de microlentilles, chaque microlentille étant destinée à coopérer avec une source lumineuse distincte, en étant en regard de cette source lumineuse lorsque l'élément support est dans la position prédéterminée par rapport au support. Chaque couple formé par une source lumineuse et une microlentille est configuré pour participer à la formation d'un segment lumineux activable sélectivement, notamment par pilotage indépendant de chacune des sources lumineuses. Par activable sélectivement, on comprendra que le segment lumineux peut être activé, soit automatiquement soit par une action de l'utilisateur, indépendamment ou non des autres segments lumineux, adjacents ou non.The optical element can comprise one or more optical elements, forming by way of example at least one microlens playing the role of primary optical directly in the vicinity of the light source (s), in particular in applications in light devices for motor vehicles where the light modules are mounted on a plate on which is also positioned a projection lens thus forming a secondary optic. In the light module according to the invention, provision can be made for the optical element to include a plurality of microlenses, each microlens being intended to cooperate with a separate light source, by being opposite this light source when the support element is in. the predetermined position relative to the support. Each pair formed by a light source and a microlens is configured to participate in the formation of a selectively activatable light segment, in particular by independent control of each of the light sources. By selectively activatable, it will be understood that the light segment can be activated, either automatically or by an action of the user, independently or not of other light segments, adjacent or not.

Les moyens de fixation élastiques s'étendent de part et d'autre des éléments optiques. En d'autres termes, on prévoit que l'on a un agencement en série de ces éléments optiques, et que les moyens de fixation élastiques sont disposés sur les bords d'extrémités du support selon la direction principale de cette série.The elastic fixing means extend on either side of the optical elements. In other words, provision is made for these optical elements to be arranged in series, and for the elastic fixing means to be arranged on the end edges of the support in the main direction of this series.

Dans la position prédéterminée, l'élément optique est alors relativement disposé sur le support par un appui sur la partie supérieure du support et par un appui sur la partie inférieure du support. Ces deux appuis se font à égale distance, ou essentiellement à égale distance des microlentilles. Cet agencement assure que les microlentilles sont dans une position où elles collaborent avec la source lumineuse quels que soit les tolérances de fabrication qui pourrait amener un problème de positionnement.In the predetermined position, the optical element is then relatively disposed on the support by resting on the upper part of the support and by resting on the lower part of the support. These two supports are made at an equal distance, or essentially at an equal distance from the microlenses. This arrangement ensures that the microlenses are in a position where they collaborate with the light source regardless of manufacturing tolerances which could lead to a positioning problem.

Le module lumineux peut comporter en outre au moins un organe de conduction thermique. L'organe de conduction thermique est notamment agencé pour conduire la chaleur émise par la source lumineuse vers un dissipateur thermique.The light module may further include at least one thermal conduction member. The thermal conduction member is in particular designed to conduct the heat emitted by the light source to a heat sink.

L'organe de conduction thermique comporte une base, configurée pour être en contact avec le support, et au moins un doigt de préhension pour le positionnement de l'organe de conduction thermique. La base peut être issue de matière avec le doigt de préhension, ou bien être réalisé distinctement.The thermal conduction member comprises a base, configured to be in contact with the support, and at least one gripping finger for positioning the thermal conduction member. The base can be made from material with the gripping finger, or it can be made separately.

Le doigt de préhension comporte au moins un orifice pour permettre la saisie de l'organe de conduction thermique. Le ou les orifices sont disposés pour permettre la saisie du doigt de préhension, notamment par une machine de réglage, afin d'orienter correctement l'organe de conduction thermique afin que, lorsque le ou les organes de conduction thermique sont en position prédéterminée, le ou les supports puissent être disposés sur l'organe de conduction thermique correspondant.The gripping finger has at least one orifice to allow the gripping of the heat conduction member. The orifice (s) are arranged to allow the gripping finger to be gripped, in particular by an adjustment machine, in order to correctly orient the thermal conduction member so that, when the thermal conduction member (s) are in a predetermined position, the or the supports can be arranged on the corresponding thermal conduction.

La base, le support et l'élément optique comportent chacun un orifice de fixation, les orifices venant en vis-à-vis pour recevoir un moyen de fixation. Les orifices de fixation du support et de l'élément optique sont légèrement plus grands que celui de la base, afin de compenser un écart du aux tolérances de fabrication. Le moyen de fixation peut être une vis, un rivet, une bouterolle, de la colle ou tout autre moyen de fixation adapté. Plus particulièrement, le moyen de fixation est une vis. L'orifice de fixation de la base comprend un filetage correspondant à celui de la vis. La fixation de tous les éléments du module lumineux entre eux est assurée par un seul moyen de fixation.The base, the support and the optical element each comprise a fixing orifice, the orifices coming into vis-à-vis to receive a fixing means. The mounting holes of the holder and the optical element are slightly larger than that of the base, in order to compensate for a deviation due to manufacturing tolerances. The fastening means can be a screw, a rivet, a die, glue or any other suitable fastening means. More particularly, the fixing means is a screw. The base fixing hole has a thread corresponding to that of the screw. The fixing of all the elements of the light module together is ensured by a single fixing means.

La base comporte au moins un pion d'indexage et le support de source lumineuse comporte au moins un orifice d'indexage. Les pions d'indexage sont destinés à coopérer avec les orifices d'indexage pour positionner correctement le support sur la base avant sa fixation par les moyens de fixation précédemment décrits. A cette fin, les pions d'indexage ont une forme et des dimensions complémentaires à celles des orifices d'indexage.The base comprises at least one indexing pin and the light source support comprises at least one indexing hole. The indexing pins are intended to cooperate with the indexing holes to correctly position the support on the base before it is fixed by the fixing means described above. To this end, the indexing pins have a shape and dimensions complementary to those of the indexing holes.

On comprend que l'élément optique tient en place sur le support sans la dernière vis de fixation, notamment grâce à l'action conjointe de moyens d'indexage, des moyens de fixation élastique et de la collaboration des montants sur l'épaulement.It is understood that the optical element is held in place on the support without the last fixing screw, in particular thanks to the joint action of indexing means, elastic fixing means and the collaboration of the uprights on the shoulder.

L'assemblage d'un élément optique, d'un support et d'une base a pour avantage de créer un module lumineux, qui peut être assemblé et réglé facilement dans un projecteur de véhicule. Notamment, il est envisageable de fixer le module lumineux selon l'invention sur un élément du projecteur de véhicule, notamment une platine de fixation ou un boitier. Il est également possible d'intégrer plus d'un module lumineux selon l'invention dans un projecteur de véhicule.The assembly of an optical element, a bracket and a base has the advantage of creating a light module, which can be easily assembled and adjusted in a vehicle headlight. In particular, it is possible to envisage fixing the light module according to the invention on an element of the vehicle headlight, in particular a fixing plate or a box. It is also possible to integrate more than one light module according to the invention in a vehicle headlight.

L'invention concerne un dispositif lumineux comprenant le module lumineux tel que précédemment décrit avec un support de source lumineuse, la source lumineuse et l'élément optique, ainsi qu'une lentille de projection formant une optique secondaire configurée pour recevoir et dévier les rayons lumineux déviés par l'élément optique formant dès lors l'optique primaire.The invention relates to a light device comprising the light module as described above with a light source support, the light source and the optical element, as well as a projection lens forming a secondary optic configured to receive and deflect the rays. light deflected by the optical element therefore forming the primary optic.

Chaque couple formé par une source lumineuse et une optique primaire peut coopérer avec une optique secondaire qui leur est propre, ou bien avec une optique secondaire commune.Each pair formed by a light source and a primary optic can cooperate with a secondary optic which is specific to them, or else with a common secondary optic.

Le dispositif lumineux décrit par l'invention peut être utilisé de manière avantageuse pour les projecteurs dotés d'une fonction ADB (Adaptive Driving Beam) d'éclairage adaptatif. Une telle fonction ADB est destinée à détecter de façon automatique un usager de la route susceptible d'être ébloui par un faisceau d'éclairage émis en mode feux de route par un projecteur, et à modifier le contour de ce faisceau d'éclairage de manière à créer une zone d'ombre à l'endroit où se trouve l'usager détecté. Les avantages de la fonction ADB sont multiples : confort d'utilisation, meilleure visibilité par rapport à un éclairage en mode feux de croisement, meilleure fiabilité pour le changement de mode, risque d'éblouissement fortement réduit, conduite plus sûre.The lighting device described by the invention can be used advantageously for headlights equipped with an ADB (Adaptive Driving Beam) function of adaptive lighting. Such an ADB function is intended to automatically detect a road user liable to be dazzled by a lighting beam emitted in high beam mode by a headlamp, and to modify the contour of this lighting beam in such a way. to create a shadow zone at the location of the detected user. The advantages of the ADB function are multiple: ease of use, better visibility compared to lighting in low beam mode, better reliability for changing modes, greatly reduced risk of dazzling, safer driving.

La possibilité de modifier le faisceau d'éclairage est assuré par la division de l'ensemble des rayons émis par les sources lumineuses en segments verticaux activables sélectivement. Cette division est assurée par la séparation des rayons lumineux par l'association spécifique d'une source lumineuse et d'une microlentille, l'ensemble ne produisant peu ou pas de rayons parasites du fait de la présence d'une microlentille au voisinage direct d'une source. Le module lumineux selon l'invention se prête donc particulièrement à l'application d'une fonction ADB.The possibility of modifying the lighting beam is ensured by the division of all the rays emitted by the light sources into selectively activatable vertical segments. This division is ensured by the separation of the light rays by the specific association of a light source and a microlens, the assembly producing little or no parasitic rays due to the presence of a microlens in the direct vicinity of 'a source. The light module according to the invention is therefore particularly suitable for the application of an ADB function.

D'autres caractéristiques, détails et avantages de l'invention ressortiront plus clairement à la lecture de la description donnée ci-après à titre indicatif et non limitatif en relation avec des dessins annexés dans lesquels :

  • la figure 1 est une vue en éclaté d'un module lumineux selon un premier mode de réalisation de l'invention, représentant notamment les faces avant des éléments constitutifs du module,
  • la figure 2 est une vue en éclaté du module lumineux de la figure 1, rendant notamment visible les faces arrière des éléments visibles sur la figure 1,
  • la figure 3 est une vue en perspective d'un module lumineux assemblé, selon le premier mode de réalisation de l'invention
  • la figure 4 est une vue en perspective d'un dispositif lumineux comportant plusieurs modules lumineux selon l'invention, et
  • la figure 5 est une vue en éclaté d'un module lumineux selon un deuxième mode de réalisation de l'invention, selon une perspective semblable à celle de la figure 1.
Other characteristics, details and advantages of the invention will emerge more clearly on reading the description given below by way of indication and without limitation in relation to the appended drawings in which:
  • the figure 1 is an exploded view of a light module according to a first embodiment of the invention, showing in particular the front faces of the constituent elements of the module,
  • the figure 2 is an exploded view of the light module of the figure 1 , making visible the rear faces of the elements visible on the figure 1 ,
  • the figure 3 is a perspective view of an assembled light module, according to the first embodiment of the invention
  • the figure 4 is a perspective view of a light device comprising several light modules according to the invention, and
  • the figure 5 is an exploded view of a light module according to a second embodiment of the invention, from a perspective similar to that of the figure 1 .

Sur les figures, les éléments communs à plusieurs figures conservent la même référence.In the figures, the elements common to several figures retain the same reference.

Dans la suite de la description, les dénominations longitudinales, verticales et transversales sont relatives à un axe correspondant à la direction générale des rayons émis par la source lumineuse. La direction longitudinale correspond à la direction générale des rayons lumineux émis par la source lumineuse. Le sens avant désigne le sens d'émission des rayons lumineux par la source lumineuse, le sens arrière désignant quant à lui le sens inverse.In the remainder of the description, the longitudinal, vertical and transverse names relate to an axis corresponding to the general direction of the rays emitted by the light source. The longitudinal direction corresponds to the general direction of the light rays emitted by the light source. The forward direction designates the direction of emission of light rays by the light source, the rear direction designating the reverse direction.

Les directions évoquées ci-dessus sont également visibles dans un trièdre L, V, T représenté sur les figures.The directions mentioned above are also visible in a trihedron L, V, T shown in the figures.

Le module lumineux 1 comporte au moins une source lumineuse 2, un support 3 de la source lumineuse 2 et un élément optique 4 agencé sur le trajet des rayons émis par la source lumineuse 2, notamment pour les dévier et les arranger pour participer à la création d'un faisceau d'éclairage et/ou de signalisation de véhicule automobile.The light module 1 comprises at least one light source 2, a support 3 for the light source 2 and an optical element 4 arranged on the path of the rays emitted by the light source 2, in particular to deflect them and arrange them to participate in the creation. a motor vehicle lighting and / or signaling beam.

Dans un premier mode de réalisation de l'invention, illustré sur les figures 1 à 4, le module lumineux 1 comporte cinq sources lumineuses 2.In a first embodiment of the invention, illustrated on figures 1 to 4 , light module 1 has five light sources 2.

Le support 3 a la forme générale d'une plaque de faible épaisseur, délimitée par une première face 39 où sont disposées les sources lumineuses 2, et une seconde face 391 opposée à la première. Ces deux faces sont délimitées par un bord supérieur, un bord inférieur, et deux bords latéraux. Le support 3 peut notamment comporter une carte de circuits imprimées, sur laquelle sont disposées les sources lumineuses 2 et des composants électroniques.The support 3 has the general shape of a thin plate, delimited by a first face 39 where the light sources 2 are arranged, and a second face 391 opposite the first. These two faces are delimited by an upper edge, a lower edge, and two side edges. The support 3 can in particular comprise a printed circuit board, on which the light sources 2 and electronic components are arranged.

L'extrémité de la première face 39 du support 3 au voisinage du bord supérieur est plus étroite que l'extrémité de la première face 39 au voisinage du bord inférieur. La réduction de largeur est réalisée par au moins une zone de rétrécissement 36 formée par un épaulement 37, qui crée une surface d'appui 38 sensiblement parallèle au bord supérieur du support 3.The end of the first face 39 of the support 3 in the vicinity of the upper edge is narrower than the end of the first face 39 in the vicinity of the lower edge. The width reduction is achieved by at least one narrowing zone 36 formed by a shoulder 37, which creates a bearing surface 38 substantially parallel to the upper edge of the support 3.

Les sources lumineuses 2 sont disposées sur la partie du support 3 agencée entre la zone de rétrécissement 36 et le bord inférieur. Les sources lumineuses 2 sont disposées en une série transversale, perpendiculairement aux bords latéraux du support 3.The light sources 2 are arranged on the part of the support 3 arranged between the constriction zone 36 and the lower edge. The light sources 2 are arranged in a transverse series, perpendicular to the lateral edges of the support 3.

Le support 3 comprend, sur la première face 39 entre le bord inférieur et les sources lumineuses 2, un ou plusieurs composants électroniques 31. Ces composants électroniques 31 peuvent être de tout type et de toute nature permettant l'accomplissement d'une fonction en lien avec le module lumineux 1, telle que l'activation sélective d'une ou de plusieurs sources lumineuses 2.The support 3 comprises, on the first face 39 between the lower edge and the light sources 2, one or more electronic components 31. These electronic components 31 can be of any type and of any nature allowing the accomplishment of a related function. with the light module 1, such as the selective activation of one or more light sources 2.

Le support 3 comprend en outre un premier orifice d'indexage 32 et un deuxième orifice d'indexage 33, disposés l'un au voisinage du bord supérieur du support 3 et l'autre au voisinage du bord inférieur. Ces orifices 32, 33 présentent dans l'exemple illustré une section de forme cylindrique ou essentiellement cylindrique. Les deux orifices d'indexage 32, 33 peuvent être traversants, c'est-à-dire s'étendre d'une face à l'autre du support 3.The support 3 further comprises a first indexing orifice 32 and a second indexing orifice 33, one arranged in the vicinity of the upper edge of the support 3 and the other in the vicinity of the lower edge. These orifices 32, 33 have in the example illustrated a section of cylindrical or essentially cylindrical shape. The two indexing orifices 32, 33 can pass through, that is to say extend from one face to the other of the support 3.

Le support 3 comprend en outre un trou d'indexage 34 de forme oblongue, qui est disposé au voisinage du premier orifice d'indexage 32 et des sources lumineuses 2, et un alésage central 35, traversant.The support 3 further comprises an indexing hole 34 of oblong shape, which is arranged in the vicinity of the first indexing orifice 32 and the light sources 2, and a central bore 35, passing through.

L'élément optique 4 est disposé en regard de la première face 39 du support 3, à savoir la face sur laquelle sont disposées les sources lumineuses 2. L'élément optique 4 a une forme de plaque de faible épaisseur, délimitée par une face interne 49 amenée en regard du support 3 lorsque le module lumineux est assemblé, et une face externe 40 opposée à la face interne 49. La largeur et l'épaisseur de l'élément optique 4 sont essentiellement identiques à celles du support 3, et dont la longueur est inférieure à celle du support 3. Selon l'orientation choisie et notamment illustrée sur la figure 1, la largeur correspond à la dimension de l'élément optique 4 et du support 3 selon la direction transversale, l'épaisseur correspond à la dimension de l'élément optique 4 et du support 3 selon la direction longitudinale et la longueur correspond à la dimension de l'élément optique 4 et du support 3 selon la direction verticale.The optical element 4 is arranged opposite the first face 39 of the support 3, namely the face on which the light sources 2 are arranged. The optical element 4 has the shape of a thin plate, delimited by an internal face. 49 brought opposite the support 3 when the light module is assembled, and an external face 40 opposite the internal face 49. The width and the thickness of the optical element 4 are essentially identical to those of the support 3, and of which the length is less than that of the support 3. Depending on the orientation chosen and in particular illustrated on the figure 1 , the width corresponds to the dimension of the optical element 4 and of the support 3 in the transverse direction, the thickness corresponds to the dimension of the optical element 4 and of the support 3 in the longitudinal direction and the length corresponds to the dimension of the optical element 4 and of the support 3 in the vertical direction.

L'élément optique 4 comporte une portion de maintien élastique 62, une portion de traitement 64 des rayons lumineux ainsi qu'une portion de fixation 66.The optical element 4 comprises an elastic holding portion 62, a processing portion 64 of the light rays as well as a fixing portion 66.

La portion de traitement 64 des rayons lumineux de l'élément optique 4 comporte une ou plusieurs microlentilles 42, qui dans l'exemple illustré sont disposées en une série transversale. La ou les microlentilles 42 s'étendent en saillie de la face externe 40 de l'élément optique 4, en présentant une forme hémisphérique ou essentiellement hémisphérique, disposées pour collaborer avec les sources lumineuses 2. Tel que cela sera décrit ci-après, les microlentilles 42 sont alignées en face des sources lumineuses 2 lorsque l'élément optique 4 est rapporté contre le support 3, en présentant un dégagement longitudinal pour ne pas écraser les sources lumineuses 2 lorsque l'élément optique 4 est plaqué contre le support 3. Les microlentilles 42 collaborent avec les sources lumineuses 2 de façon à projeter de façon contrôlée les rayons lumineux émis par les sources lumineuses 2.The portion 64 for processing the light rays of the optical element 4 comprises one or more microlenses 42, which in the example illustrated are arranged in a transverse series. The microlens 42 extend projecting from the external face 40 of the optical element 4, having a hemispherical or essentially hemispherical shape, arranged to collaborate with the light sources 2. As will be described below, the microlenses microlenses 42 are aligned opposite the light sources 2 when the optical element 4 is attached against the support 3, with a longitudinal clearance so as not to crush the light sources 2 when the optical element 4 is pressed against the support 3. The microlenses 42 collaborate with the light sources 2 so as to project in a controlled manner the light rays emitted by the light sources 2.

Ces microlentilles 42 forment des optiques primaires 41 lorsque, tel que cela sera décrit ci-après, le module lumineux 1 que participe à former l'élément optique 4 est monté dans un dispositif lumineux 10 comportant en outre une lentille de projection 104 formant dès lors une optique secondaire.These microlenses 42 form primary optics 41 when, as will be described below, the light module 1 that participates in forming the optical element 4 is mounted in a light device 10 further comprising a projection lens 104 therefore forming a secondary lens.

L'élément optique 4 comporte en outre un évidement 43 et les microlentilles 42 sont agencés le long d'un des bords délimitant cet évidement. Dans l'exemple illustré, l'évidement est de forme essentiellement rectangulaire. On comprend que cet évidement 43 a pour rôle de permettre le dégagement par circulation d'air de la chaleur produite par les sources lumineuses 2.The optical element 4 further comprises a recess 43 and the microlenses 42 are arranged along one of the edges defining this recess. In the example illustrated, the recess is essentially rectangular in shape. It will be understood that the role of this recess 43 is to allow the release by air circulation of the heat produced by the light sources 2.

Entre la portion de traitement 64 des rayons lumineux et la portion de fixation 66, l'élément optique 4 comporte un aménagement 44 disposé pour créer un dégagement entre l'élément optique 4 et le support 3 lorsque ces deux pièces sont plaquées l'une contre l'autre. Il est ainsi possible de disposer sur le support 3 un composant électronique volumineux.Between the processing portion 64 of the light rays and the fixing portion 66, the optical element 4 comprises an arrangement 44 arranged for create a clearance between the optical element 4 and the support 3 when these two parts are pressed against each other. It is thus possible to place a bulky electronic component on the support 3.

L'élément optique 4 comporte, sur la face interne 49, un pion d'indexage 45 (visible sur la figure 2) de forme oblongue, disposé sur un bord délimitant l'évidement 43 à l'opposé des microlentilles 42. Ainsi, lors de l'assemblage du module lumineux 1, le pion d'indexage 45 de l'élément optique 4 s'étend en direction du support 3.The optical element 4 comprises, on the internal face 49, an indexing pin 45 (visible on the figure 2 ) oblong, disposed on an edge defining the recess 43 opposite the microlenses 42. Thus, during assembly of the light module 1, the indexing pin 45 of the optical element 4 extends in support direction 3.

La portion de fixation 66 de l'élément optique 4 comprend un alésage 47 traversant. Dans l'exemple illustré, l'alésage 47 présente une forme circulaire.The fixing portion 66 of the optical element 4 comprises a through bore 47. In the example illustrated, the bore 47 has a circular shape.

La portion de maintien élastique 62 de l'élément optique 4 comporte deux moyens de fixation élastique 46 disposés respectivement sur chacun des bords latéraux de l'élément optique 4. Ces moyens de fixation élastique 46 sont disposés de part et d'autre de l'élément optique 4, au voisinage du bord supérieur de l'élément optique 4. Les moyens de fixation élastique 46 prolongent sensiblement perpendiculairement la plaque formant l'élément support, du côté de la face interne 49, c'est-à-dire que ces moyens de fixation élastique 46 s'étendent à l'opposé des microlentilles 42.The elastic holding portion 62 of the optical element 4 comprises two elastic fixing means 46 arranged respectively on each of the lateral edges of the optical element 4. These elastic fixing means 46 are arranged on either side of the optical element 4, in the vicinity of the upper edge of the optical element 4. The elastic fixing means 46 extend substantially perpendicularly the plate forming the support element, on the side of the internal face 49, that is to say that these elastic fixing means 46 extend opposite the microlenses 42.

Chaque moyen de fixation élastique 46 comporte un cadre 461 et une lame élastique 462.Each elastic fixing means 46 comprises a frame 461 and an elastic blade 462.

Le cadre 461 est formé par deux montants longitudinaux 463 issus de matière de la plaque de l'élément optique 4 et prolongeant sensiblement perpendiculairement celle-ci, au niveau d'un des bords latéraux de l'élément optique 4. Les deux montants longitudinaux 463 sont reliés à leur extrémité libre par un segment 464, agencé de la sorte à distance de la plaque de l'élément optique 4 et qui porte en son milieu la lame élastique 462, qui s'étend depuis le segment 464 dans le sens du rapprochement de la plaque de l'élément optique 4. Cette lame élastique 462 est incliné par rapport aux montants longitudinaux parallèles 463 dans la mesure où elle s'étend vers l'intérieur de l'élément optique 4. En d'autres termes, elle présente une composante transversale de manière à s'étendre dans le sens du rapprochement de la lame élastique 462 de l'autre moyen de fixation élastique 46.The frame 461 is formed by two longitudinal uprights 463 made from the material of the plate of the optical element 4 and extending substantially perpendicularly thereto, at the level of one of the lateral edges of the optical element 4. The two longitudinal uprights 463 are connected at their free end by a segment 464, arranged in this way at a distance from the plate of the optical element 4 and which carries in its middle the elastic blade 462, which extends from the segment 464 in the direction of approach of the plate of the optical element 4. This elastic blade 462 is inclined with respect to the parallel longitudinal uprights 463 insofar as it extends towards the interior of the optical element 4. In other words, it has a transverse component so as to extend in the direction of the approach of the blade elastic 462 of the other elastic fixing means 46.

Tel que cela va être décrit ci-après plus en détails, la portion de fixation élastique 66 est configurée de telle sorte que, lorsque l'élément optique 4 est dans la position prédéterminée, chacun des cadres 461, et plus particulièrement le montant longitudinal 463 inférieur, repose sur la surface d'appui 38 formée par l'épaulement 37 correspondant du support 3, et l'extrémité libre de chaque lame élastique 462, à l'opposé du segment 464, est en contact avec la seconde face 391 du support. La coopération des montants 463 et lames élastique 462 de l'élément optique 4 avec les formes appropriées ménagées sur le support 3 participent au maintien en position de l'élément optique 4.As will be described below in more detail, the resilient fixing portion 66 is configured such that, when the optical element 4 is in the predetermined position, each of the frames 461, and more particularly the longitudinal post 463 lower, rests on the bearing surface 38 formed by the corresponding shoulder 37 of the support 3, and the free end of each elastic blade 462, opposite the segment 464, is in contact with the second face 391 of the support . The cooperation of the uprights 463 and elastic blades 462 of the optical element 4 with the appropriate shapes provided on the support 3 participate in maintaining the optical element 4 in position.

Le module lumineux 1 comporte en outre un organe de conduction thermique 8 sur lequel vient se plaquer le support 3. L'organe de conduction thermique 8 comporte une base 5, de forme et de dimensions essentiellement semblables à celles du support 3.The light module 1 further comprises a thermal conduction member 8 on which the support 3 is pressed. The thermal conduction member 8 comprises a base 5, of shape and dimensions essentially similar to those of the support 3.

La base 5 présente une face de contact 50 sur laquelle sont au moins ménagées un premier ergot d'indexage 51 et un deuxième ergot d'indexage 52, d'une forme complémentaire aux premier et deuxième orifices 32, 33 ménagés dans le support. Lorsque le support 3 est rapporté contre la base 5, ces ergots d'indexage 51, 52 sont disposés en face des orifices d'indexages 32, 33 du support 3, de manière à permettre le positionnement du support 3 par rapport à la base 5.The base 5 has a contact face 50 on which are provided at least a first indexing pin 51 and a second indexing pin 52, of a shape complementary to the first and second orifices 32, 33 formed in the support. When the support 3 is fitted against the base 5, these indexing pins 51, 52 are arranged opposite the indexing holes 32, 33 of the support 3, so as to allow the positioning of the support 3 relative to the base 5 .

La base 5 comporte également, sur la face opposée à la face de contact 50 sur laquelle est plaqué le support 3, au moins un premier doigt de préhension 55 prolongeant perpendiculairement la base 5 et agencé à une extrémité de la base 5, au voisinage ici du bord supérieur. Dans l'exemple illustré, on a prévu un deuxième doigt de préhension 56 de sorte que ces doigts de préhension 55, 56 sont chacun disposés sur une extrémité de la base 5. Les doigts de préhension 55, 56 peuvent s'étendre sur tout ou partie de la largeur de la base 5.The base 5 also comprises, on the face opposite to the contact face 50 on which the support 3 is pressed, at least one first gripping finger 55 extending perpendicularly to the base 5 and arranged at one end of the base 5, in the vicinity here from the top edge. In the example illustrated, there is provided a second gripping finger 56 so that these gripping fingers 55, 56 are each disposed on one end of the base 5. The gripping fingers 55, 56 can extend over all or part of the base width 5.

Les doigts de préhension 55, 56 sont tous deux destinés à permettre la saisie de la base 5 pour permettre d'obtenir l'orientation correcte de cette base 5 et donc de l'ensemble du module lumineux 1 avant sa fixation dans un dispositif d'éclairage et/ou de signalisation dans le véhicule. A cet effet, le premier doigt de préhension 55 comporte deux orifices de saisie 57, 58, configurés pour collaborer avec toute machine-outil utile à la fabrication, à l'assemblage ou au réglage du module lumineux 1. Les orifices de saisie 57, 58 sont disposés sur la face supérieure du premier doigt de préhension 55. Dans le mode de réalisation de l'exemple, l'un des orifices de saisie 57, 58 est traversant et l'autre non.The gripping fingers 55, 56 are both intended to allow the base 5 to be gripped in order to obtain the correct orientation of this base 5 and therefore of the whole of the light module 1 before its fixing in a lighting and / or signaling device in the vehicle. For this purpose, the first gripping finger 55 has two gripping orifices 57, 58, configured to work with any machine tool useful for the manufacture, assembly or adjustment of the light module 1. The gripping orifices 57, 58 are arranged on the upper face of the first gripping finger 55. In the embodiment of the example, one of the gripping orifices 57, 58 is through and the other is not.

La base 5 comporte en outre un trou de fixation 59 qui s'étend dans l'épaisseur de la base depuis la face opposée à la face de contact 50 sur laquelle est amené à être plaqué le support 3. Dans l'exemple illustré, ce trou de fixation 59 est traversant, c'est-à-dire qu'il débouche sur la face de contact 50, mais on comprendra qu'il peut être borgne. Ce trou de fixation 59, tel que cela sera précisé ci-après, a pour vocation de participer à la fixation de la base 5 et donc de l'ensemble du module lumineux 1 sur un boîtier d'un dispositif d'éclairage et/ou de signalisation. Il peut notamment être taraudé pour recevoir une vis de fixation 7.The base 5 further comprises a fixing hole 59 which extends in the thickness of the base from the face opposite the contact face 50 on which the support 3 is made to be pressed. In the example illustrated, this fixing hole 59 is through, that is to say that it opens onto the contact face 50, but it will be understood that it can be blind. This fixing hole 59, as will be specified below, is intended to participate in the fixing of the base 5 and therefore of the whole of the light module 1 on a housing of a lighting device and / or signaling. It can in particular be tapped to receive a fixing screw 7.

Par ailleurs, la base 5 comporte un œillet d'indexage 53, de forme oblongue sensiblement égale à la forme oblongue du trou d'indexage 34 réalisé dans le support 3.Furthermore, the base 5 comprises an indexing eyelet 53, of oblong shape substantially equal to the oblong shape of the indexing hole 34 made in the support 3.

La base 5 comporte également, sensiblement en son centre, un alésage fileté 54, qui s'étend dans l'épaisseur de la base 5 depuis la face de contact 50 disposée pour être en contact avec le support 3. Dans l'exemple illustré, il est notamment illustré que l'alésage fileté 54 n'est pas traversant et consiste en un trou borgne.The base 5 also comprises, substantially at its center, a threaded bore 54, which extends in the thickness of the base 5 from the contact face 50 arranged to be in contact with the support 3. In the example illustrated, it is in particular illustrated that the threaded bore 54 does not pass through and consists of a blind hole.

Le pion d'indexage 45 de l'élément optique 4 est agencé pour collaborer avec le trou d'indexage 34 et l'œillet d'indexage 53 pour participer au positionnement de l'élément optique 4 sur le support 3.The indexing pin 45 of the optical element 4 is arranged to collaborate with the indexing hole 34 and the indexing eyelet 53 to participate in the positioning of the optical element 4 on the support 3.

On va maintenant décrire, en se référant à la figure 4, le module lumineux 1 formé par la coopération de chacun des éléments précédemment décrits. La figure 3 illustre un module lumineux 1 assemblé selon l'invention.We will now describe, with reference to the figure 4 , the light module 1 formed by the cooperation of each of the elements described above. The figure 3 illustrates a light module 1 assembled according to the invention.

Dans un premier temps, le support 3 est disposé sur l'organe de conduction thermique 8, et plus particulièrement sur sa base 5. On positionne à cet effet la seconde face 391 du support 3 en regard de la face de contact 50. On aligne sensiblement les bords de la base 5 et ceux du support 3, et on fait de la sorte correspondre les moyens d'indexage. Les ergots d'indexage 51, 52 portés par la base 5 pénètrent dans les orifices d'indexage 32, 33 ménagés dans le support, et on assure ainsi la position relative du support 3 par rapport à la base 5. Dans cette position relative, l'œillet d'indexage 53 est situé en face du trou d'indexage 34 du support 3, et l'alésage central 35 du support 3 est aligné avec l'alésage fileté central 54 disposé sur la base 5. Il convient de noter que l'alésage central 35 présente un diamètre supérieur à celui de l'alésage fileté central 54.Initially, the support 3 is placed on the thermal conduction member 8, and more particularly on its base 5. For this purpose, the second face 391 of the support 3 is positioned opposite the contact face 50. It is aligned. substantially the edges of the base 5 and those of the support 3, and the indexing means are thus made to correspond. The indexing pins 51, 52 carried by the base 5 enter the indexing orifices 32, 33 formed in the support, and the relative position of the support 3 with respect to the base 5 is thus ensured. In this relative position, the indexing eyelet 53 is located opposite the indexing hole 34 of the support 3, and the central bore 35 of the support 3 is aligned with the central threaded bore 54 disposed on the base 5. It should be noted that the central bore 35 has a diameter greater than that of the central threaded bore 54.

L'élément optique 4 est ensuite disposé sur le support 3, en mettant en regard la face interne 49 de l'élément optique 4 et la première face 39 du support 39. Les moyens de fixation élastique 46 sont alors tournés vers le support 3. On réalise dans un premier temps un pré-positionnement de l'élément optique 4 en faisant reposer le montant longitudinal inférieur 463 du cadre 461 de chaque moyen de fixation élastique 46 sur la surface d'appui 38 formée par le bord d'épaulement 37 réalisé sur le support 3. On fait ensuite coulisser l'élément optique 4 longitudinalement, c'est-à-dire perpendiculairement au plan défini par le support 3, le long de cette surface d'appui 38, étant entendu que la forme de la base 5 est définie pour ne pas entraver ce coulissement.The optical element 4 is then placed on the support 3, with the internal face 49 of the optical element 4 and the first face 39 of the support 39 facing each other. The elastic fixing means 46 are then turned towards the support 3. First, a pre-positioning of the optical element 4 is carried out by resting the lower longitudinal upright 463 of the frame 461 of each resilient fixing means 46 on the bearing surface 38 formed by the shoulder edge 37 produced. on the support 3. The optical element 4 is then made to slide longitudinally, that is to say perpendicular to the plane defined by the support 3, along this support surface 38, it being understood that the shape of the base 5 is defined so as not to hinder this sliding.

Au cours du déplacement de l'élément optique 4 en rapprochement du support 3, les lames élastiques 462, qui dans leur forme d'origine sont inclinées en se rapprochant du centre de l'élément optique 4, entrent en contact avec le bord latéral du support 3. Les lames élastiques 462 sont configurées pour se déformer élastiquement vers l'extérieur de l'élément optique 4 et permettre le coulissement.During the movement of the optical element 4 towards the support 3, the elastic blades 462, which in their original shape are inclined as they approach the center of the optical element 4, come into contact with the lateral edge of the support 3. The elastic blades 462 are configured to deform elastically outwardly of the optical element 4 and allow sliding.

Par ailleurs, lors du coulissement de l'élément optique 4, le pion d'indexage 45 agencé sur la face interne 49 de l'élément optique 4 arrive en regard du trou d'indexage 34 ménagé dans le support 3. Il peut en résulter un ajustement de la position de l'élément optique 4 par rapport au support 3, pour permettre l'insertion du pion d'indexage 45 dans le trou d'indexage 34, puis dans l'œillet d'indexage 53 ménagé dans la base 5 et disposé dans le prolongement immédiat du trou d'indexage 34. Dès lors, le cadre 461 du moyen de fixation élastique 46 et le pion d'indexage 45 d'une part, et la surface d'appui 38 formée par le bord d'épaulement 37 et le trou d'indexage 34 d'autre part forment des moyens de positionnement de l'élément optique 4 sur le support dans une position déterminée.Furthermore, during the sliding of the optical element 4, the indexing pin 45 arranged on the internal face 49 of the optical element 4 arrives in sight of the indexing hole 34 made in the support 3. This may result in an adjustment of the position of the optical element 4 relative to the support 3, to allow the insertion of the indexing pin 45 in the hole. indexing 34, then in the indexing eyelet 53 formed in the base 5 and arranged in the immediate extension of the indexing hole 34. Consequently, the frame 461 of the elastic fixing means 46 and the indexing pin 45 d 'on the one hand, and the bearing surface 38 formed by the shoulder edge 37 and the indexing hole 34 on the other hand form means for positioning the optical element 4 on the support in a determined position.

En bout de coulissement, l'élément optique 4 est au contact du support 3, ou au voisinage direct de celui-ci, étant entendu que ceux pièces sont configurées pour que les sources lumineuses 2 ne soient pas écrasées par l'élément optique 4 dans cette position souhaitée. Notamment les microlentilles 42 sont ménagées en bord de l'évidement 43 avec un léger décalage longitudinal par rapport à la face interne 49 de l'élément optique 4. On pourra également prévoir de ménager sur l'élément optique 4, tel que visible sur la figure 2, des bourrelets 490 permettant de plaquer l'élément optique 4 sur le support 3 sans venir écraser les sources lumineuses 2.At the sliding end, the optical element 4 is in contact with the support 3, or in the direct vicinity of the latter, it being understood that these parts are configured so that the light sources 2 are not crushed by the optical element 4 in this desired position. In particular, the microlenses 42 are provided at the edge of the recess 43 with a slight longitudinal offset with respect to the internal face 49 of the optical element 4. Provision may also be made to spare on the optical element 4, as visible on the figure. figure 2 , beads 490 making it possible to press the optical element 4 onto the support 3 without crushing the light sources 2.

La coopération des moyens de positionnement, à savoir les moyens de positionnement 45 portés par l'élément optique 4 et les moyens de positionnement complémentaires portés par le support 3 notamment, permet l'obtention d'une position prédéterminée, dans laquelle l'alésage 47 traversant disposé dans la portion de fixation 66 de l'élément optique 4 est situé en face de l'alésage central 35 du support et de l'alésage fileté central 54 de la base 5. Ces trois alésages 54, 35, 47 sont ainsi alignés et dès lors configurés pour recevoir un premier moyen de fixation 6, étant entendu que l'alésage traversant 47 de l'élément optique 4 présente un diamètre plus important que celui de l'alésage fileté central 54 de la base 5.The cooperation of the positioning means, namely the positioning means 45 carried by the optical element 4 and the complementary positioning means carried by the support 3 in particular, makes it possible to obtain a predetermined position, in which the bore 47 through disposed in the fixing portion 66 of the optical element 4 is located opposite the central bore 35 of the support and the central threaded bore 54 of the base 5. These three bores 54, 35, 47 are thus aligned and therefore configured to receive a first fixing means 6, it being understood that the through bore 47 of the optical element 4 has a larger diameter than that of the central threaded bore 54 of the base 5.

Dans la position prédéterminée, les lames élastiques 462 sont passées au-delà de la plaque formant support 3 et elles ne sont plus en contact avec un bord latéral de cette plaque. Dès lors, elles reprennent leur forme d'origine, et tendent à se rapprocher l'une de l'autre, vers le centre de l'élément optique 4. L'extrémité libre de chaque lame élastique 462 vient alors en position derrière la plaque formant support 3, en regard de la seconde face 391. Le support 3 forme alors butée à l'encontre du dégagement des lames élastiques 462 et donc du dégagement de l'élément optique 4. S'il est souhaité de remplacer l'élément optique 4, il convient d'agir sur les lames élastiques 462, de les contraindre selon un effort particulier pour les écarter l'une de l'autre et les dégager du support 3. En fonctionnement, sans intervention extérieure d'un opérateur, la position de l'élément optique 4 par rapport au support 3 et donc la position des microlentilles 42 par rapport aux sources lumineuses 2 est fiable.In the predetermined position, the elastic blades 462 have passed beyond the support plate 3 and they are no longer in contact with a lateral edge of this plate. Therefore, they return to their original shape, and tend to approach one another, towards the center of the optical element 4. The free end of each elastic blade 462 then comes into position behind the support plate 3, opposite the second face 391. The support 3 then forms a stop against the release of the elastic blades 462 and therefore the release of the optical element 4. If it is desired to replace the optical element 4, it is necessary to act on the elastic blades 462. , to force them with a particular effort to move them away from one another and release them from the support 3. In operation, without external intervention by an operator, the position of the optical element 4 relative to the support 3 and therefore the position of the microlenses 42 relative to the light sources 2 is reliable.

On utilise en dernier lieu le premier moyen de fixation 6 pour maintenir ensemble l'élément optique 4, le support 3 et la base 5. Le premier moyen de fixation 6 est dans l'exemple illustré une vis de fixation, la tête de la vis de fixation étant du côté de l'élément optique 4.Lastly, the first fixing means 6 is used to hold together the optical element 4, the support 3 and the base 5. The first fixing means 6 is in the example illustrated a fixing screw, the head of the screw. fixing being on the side of the optical element 4.

L'élément optique 4 est alors relativement fixé au support 3 en trois points, et on peut constater que le centre de ces trois points est positionné sensiblement au voisinage sur les microlentilles 42, de sorte que l'on assure une position fiable des microlentilles 42 par rapport aux sources lumineuses 2 quelles que soient les tolérances de fabrication.The optical element 4 is then relatively fixed to the support 3 at three points, and it can be seen that the center of these three points is positioned substantially in the vicinity of the microlenses 42, so that a reliable position of the microlenses 42 is ensured. compared to light sources 2 regardless of manufacturing tolerances.

Le procédé de montage du module lumineux 1 selon l'invention décrit ci-après ne constitue qu'un exemple de montage. Il n'est en aucun cas limitatif, et on pourra notamment prévoir de monter tout d'abord l'élément optique 4 sur le support 3, puis de monter ce sous-ensemble sur l'organe de conduction thermique 8 et sa base 5.The method for mounting the light module 1 according to the invention described below only constitutes an example of mounting. It is in no way limiting, and provision could in particular be made to first mount the optical element 4 on the support 3, then to mount this sub-assembly on the thermal conduction member 8 and its base 5.

Le module lumineux 1 ainsi formé peut alors être monté sur un boîtier ou une platine d'un dispositif lumineux par l'intermédiaire d'un deuxième moyen de fixation 7, notamment une vis de fixation, coopérant avec le trou de fixation 59 ménagé dans la base 5.The light module 1 thus formed can then be mounted on a housing or a plate of a light device by means of a second fixing means 7, in particular a fixing screw, cooperating with the fixing hole 59 made in the base 5.

La figure 4 illustre un dispositif lumineux 10 comprenant plusieurs modules lumineux 1 selon l'invention, et notamment constitués tel que cela vient d'être décrit d'un organe de conduction thermique 8, d'un support 3 et d'un élément optique 4 formant un sous-ensemble apte à être réalisé à part et rapporté ensuite sur le boîtier ou la platine du dispositif lumineux.The figure 4 illustrates a light device 10 comprising several light modules 1 according to the invention, and in particular constituted as has just been described of a thermal conduction member 8, of a support 3 and an optical element 4 forming a sub-assembly capable of being produced separately and subsequently attached to the housing or the plate of the lighting device.

Chaque module lumineux 1 selon l'invention est fixé sur une platine 102 par un deuxième moyen de fixation 7. Dans l'exemple illustré, les modules lumineux 1 sont disposés sur une extrémité axiale de la platine 102 et ils sont portés par une paroi verticale 110 de la platine 102, qui porte par ailleurs, sur la face opposée, un dissipateur thermique 9, ici de type à ailettes.Each light module 1 according to the invention is fixed to a plate 102 by a second fixing means 7. In the example illustrated, the light modules 1 are arranged on an axial end of the plate 102 and they are carried by a vertical wall. 110 of the plate 102, which also carries, on the opposite face, a heat sink 9, here of the fin type.

Le dispositif comporte par ailleurs une lentille 104, disposée à une extrémité axiale de la platine 102 opposée à celle où sont disposés les modules lumineux 1. On forme ainsi un système optique comprenant une optique primaire 41 formée par les microlentilles 42 directement au voisinage des sources lumineuses 2 et une optique secondaire 104, chacune de ces optiques étant configurée pour participer à la formation d'un faisceau d'éclairage et/ou de signalisation de véhicule automobile sur la base des rayons lumineux initialement émis par les sources lumineuses 2.The device also comprises a lens 104, arranged at an axial end of the plate 102 opposite to that where the light modules 1 are arranged. An optical system is thus formed comprising a primary optic 41 formed by the microlenses 42 directly in the vicinity of the sources. lights 2 and a secondary optic 104, each of these optics being configured to participate in the formation of a motor vehicle lighting and / or signaling beam on the basis of the light rays initially emitted by the light sources 2.

On peut notamment observer sur la figure 4 que certains des modules lumineux 1 comportent un nombre différent de sources lumineuses 2 et de microlentilles 42 associées. On a illustré ainsi sur la figure 5 un deuxième mode de réalisation du module lumineux qui diffère du premier mode de réalisation précédemment décrit en ce que le support 3 comporte sept sources lumineuses 2, l'élément optique 4 comportant pour sa part de façon correspondante sept microlentilles 42 formant optique primaire 41.One can in particular observe on the figure 4 that some of the light modules 1 have a different number of light sources 2 and associated microlenses 42. We have thus illustrated on the figure 5 a second embodiment of the light module which differs from the first embodiment previously described in that the support 3 comprises seven light sources 2, the optical element 4 for its part correspondingly comprising seven microlenses 42 forming primary optics 41.

Il en résulte que le support 3 présente un élargissement de sa largeur au niveau de la portion de traitement 64 des rayons afin de loger la série de sources lumineuses 2. Les autres caractéristiques et éléments du module lumineux 1 dans ce deuxième mode de réalisation sont identiques ou essentiellement identiques à ceux exposés dans la description du premier mode de réalisation.As a result, the support 3 has an enlargement of its width at the level of the processing portion 64 of the rays in order to accommodate the series of light sources 2. The other characteristics and elements of the light module 1 in this second embodiment are identical. or essentially identical to those set out in the description of the first embodiment.

Claims (15)

  1. A lighting device (10) for a motor vehicle comprising at least one light module (1) comprising at least one light source (2), a light source (2) support (3), and an optical element (4) able to receive rays emitted by the light source (2),
    the optical element (4) comprising means (45, 463) for positioning said optical element (4) in a predefined position on the support (3), corresponding to a predetermined position of the optical element (4) relative to the position of the light source (2), and elastic attachment means (46) for attaching said optical element (4) in the predefined position, characterized in that the lighting device (10) comprises a plate (102) on which the at least one light module (1) and a projection lens (104) are arranged, the projection lens (104) forming a secondary optical element (104) while the optical element (4) or the optical elements combined with the light module (1) form primary optical elements (41).
  2. Lighting device (10) according to claim 1, characterized in that the optical element (4) is pressed against the support (3).
  3. Lighting device (10) according to any one of the preceding claims, characterized in that the support (3) comprises at least one positioning means (34, 38) complementary to the positioning means (45, 463) of the optical element (4).
  4. Lighting device (10) according to the preceding claim, characterized in that the means for positioning the optical element (4) comprise an indexing pin (45) and the complementary positioning means of the support (3) comprise an indexing hole (34) intended to receive the indexing pin (45) when the optical element (4) is in the predefined position.
  5. Lighting device (10) according to any one of the preceding claims, characterized in that the means for positioning the optical element (4) comprise at least one post (463) of the elastic attachment means (46) and the complementary positioning means comprise at least one bearing surface (38) formed by one edge of the support (3), the post (463) bearing on the bearing surface (38) in order to bring the optical element (4) to the predefined position.
  6. Lighting device (10) according to any one of the preceding claims, characterized in that the elastic attachment means (46) comprise at least one segment (464) supporting an elastic blade (462) configured such that its free end opposite the segment forms a stop against the support (3) preventing the release of the optical element (4).
  7. Lighting device (10) according to any one of the preceding claims, characterized in that the optical element (4) comprises at least one microlens (42) configured so as to be facing a light source (2) when the support element (4) is in the predefined position relative to the support (3).
  8. Lighting device (10) according to the preceding claim, characterized in that it comprises a plurality of light sources (2) and a plurality of microlenses (42), each microlens (42) being intended to cooperate with a light source (2) in order to form a light segment that can be activated selectively.
  9. Lighting device (10) according to any one of the preceding claims, characterized in that it comprises a heat conduction member (8) arranged to conduct heat emitted by the light source (2) to a heat sink (9).
  10. Lighting device (10) according to the preceding claim, characterized in that the heat conduction member (8) comprises a base (5) to which the support (3) and the optical element (4) are secured.
  11. Lighting device (10) according to the preceding claim, characterized in that the heat conduction member (8) further comprises at least one gripping finger (55) for positioning the heat conduction member (8).
  12. Lighting device (10) according to one of Claims 10 or 11, characterized in that the base (5), the support (3) and the optical element (4) each comprise an attachment opening (59, 35, 47), the attachment openings (59, 35, 47) being aligned to receive an attachment means (6).
  13. Lighting device (10) according to one of Claims 10 to 12, characterized in that the base (5) comprises at least one indexing lug (51) intended to cooperate with an indexing opening (32) of the support (3).
  14. Lighting device (10) according to any one of the preceding claims, wherein the optical element (4) comprises sub-parts, each sub-part being made by a different method from that used to make the other subparts of the optical element (4).
  15. Lighting device (10) according to any one of the preceding claims, in which the elastic fixing means (46) are made of a material different from that used for a part of the optical element (4) directly facing the at least one light source (2) and made of a transparent or translucent material, in particular of silicone.
EP19168257.4A 2016-09-26 2017-09-13 Luminous module and luminous device for motor vehicle comprising such a luminous module Active EP3537040B1 (en)

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FR1659051A FR3056699B1 (en) 2016-09-26 2016-09-26 LUMINOUS MODULE AND LUMINOUS DEVICE FOR SELF-MOVING VEHICLE COMPRISING SUCH A LIGHT MODULE
EP17190832.0A EP3299710B1 (en) 2016-09-26 2017-09-13 Luminous module and luminous device for motor vehicle comprising such a luminous module

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