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
  • F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
  • F21S2/005—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction of modular construction
• • 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]
  • F21S41/147—Light emitting diodes [LED] the main emission direction of the LED being angled 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
  • F21S41/19—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
  • F21S41/285—Refractors, transparent cover plates, light guides or filters not provided in groups F21S41/24 - F21S41/2805
• • 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
  • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
  • F21S41/32—Optical layout thereof
  • F21S41/321—Optical layout thereof the reflector being a surface of revolution or a planar surface, e.g. truncated
• • 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
  • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
  • F21S41/32—Optical layout thereof
  • F21S41/36—Combinations of two or more separate reflectors
  • F21S41/365—Combinations of two or more separate reflectors successively reflecting the light
• • 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
  • F21W2102/135—Arrangement or contour of the emitted light for high-beam region or low-beam region the light having cut-off lines, i.e. clear borderlines between emitted regions and dark regions
  • F21W2102/155—Arrangement or contour of the emitted light for high-beam region or low-beam region the light having cut-off lines, i.e. clear borderlines between emitted regions and dark regions having inclined and horizontal cutoff lines

Definitions

• the invention relates to the technical field of lighting, in particular for motor vehicles.
• Such a light module conventionally comprises a collector with a reflective surface of revolution with an elliptical profile, in the shape of a cap in a half-space delimited by a horizontal plane.
• An essentially point-like light source, of the light-emitting diode type is located at a first focal point of the reflecting surface and illuminates in the half-space in the direction of said surface. The rays are thus reflected in a convergent manner towards a second focal point of the reflecting surface.
• Another, generally flat, reflective surface with a cut-off edge at the second focal point provides upward reflection of rays which do not pass precisely through the second focal point, these rays then being refracted by a thick lens towards the bottom of the beam lighting.
• This reflective surface is commonly referred to as a "bend” in that it "bends" up the projection lens the rays that would otherwise form a top portion of the illumination beam.
• Such a light module has the disadvantage of requiring significant precision in the positioning of the folder and the cutting edge.
• the projection lens must be a thick lens because of its short focal length, which increases its weight and complicates its production, such as shrinkage defects in particular.
• the collector has a certain height and, therefore, a certain overall height.
• the published patent document WO 2020/025171 A1 discloses a light module, in particular for a motor vehicle, comprising a collector with a reflecting surface collecting and reflecting the light rays emitted by a light source into a light beam, similar to a light module with a bender.
• the light module also includes a projection optical system, such as a lens, specifically configured to project the light beam in question by forming an image of the reflective surface of the collector.
• the projection optical system has a focus located on the reflecting surface, for example at a rear edge of the latter, so as to correctly image said edge and form a sharp cut in the projected light beam.
• This type of light module has the advantages of compactness, in particular in height, and simplicity of construction.
• this cut-off module is combined with other modules to form a headlamp providing, in addition to a cut-off lighting function commonly referred to as code, in particular an uncut lighting function commonly referred to as road.
• the optical systems can also each comprise one or more mirrors.
• the aim of the invention is to overcome at least one of the drawbacks of the aforementioned state of the art. More particularly, the object of the invention is to propose a lighting device for a motor vehicle, comprising several lighting modules and making it possible to conform to particular shapes of bodywork in a compact and economical manner.
• the subject of the invention is a lighting device for a motor vehicle, comprising a first lighting module comprising a first light engine comprising one or more first light sources and a first collector with at least one reflective surface capable of reflecting light rays emitted by the first light source(s) in a first cut-off light beam, and a first optical device capable of projecting the first light beam along an optical axis of the lighting device; a second lighting module comprising a second light engine comprising one or more second light sources, a second collector with at least a reflecting surface capable of reflecting light rays emitted by the or several second light sources into a second light beam, and a second optical device capable of projecting the second light beam along the optical axis of the lighting device; remarkable in that the lighting device comprises a plate having an inclination y with respect to a horizontal plane, around a horizontal axis of inclination and perpendicular to the optical axis; the first and second light engines being arranged on the plate, with an offset along a vertical projection of the
• a light engine is able to generate a light beam.
• Such a device is also called a light engine or a light generator.
• the offset of the light engines can be considered with respect to a rear end of their collectors or of their reflective surfaces.
• the lighting device further comprises a third lighting module comprising a third light engine comprising one or more third light sources, a third collector with at least one reflective surface capable of reflecting light rays emitted by the or several third light sources into a third light beam, and a third optical device capable of projecting the third light beam along the optical axis of the lighting device; the third light engine being arranged on the plate with an offset along the vertical projection of the optical axis on the plate so as to form, on said plate, with the first and second light engines, a profile with a general inclination ⁇ with respect to to the tilt axis.
• the general inclination ⁇ of the profile of the first, second and third light engines is between 1° and 80°.
• the third optical device has an offset in a vertical direction so as to form with the first and second optical devices, in a vertical plane, a profile with a general inclination a with respect to a horizontal direction, when the lighting device is in the mounting position.
• the general inclination a of the profile of the first, second and third optical devices is between 1° and 80°.
• the third beam is an uninterrupted lighting beam forming with the first beam a road type lighting function.
• the inclination y of the plate is between 5° and 90°.
• the inclination y of the plate is between 5° and 25°, in particular when the first, second and third optical devices are lenses.
• each of the first, second and, where applicable, third light engines is arranged at one edge of the plate, each of the first, second, and, where applicable, third collectors projecting from said edge, said edge having a stepped profile with a step corresponding to each of said first, second and, where appropriate, third light engines.
• the profile of the light engines is parallel to the main axis.
• the profile of the optical devices is parallel to the main axis.
• the second light beam is a cut-off beam with jump, forming with the first beam a lighting function of the crossing type.
• the first optical device is configured to image a portion of the at least one reflective surface of the first collector, illuminated by the first light source(s), said portion being located at the rear, along a main direction of propagation of the light along the optical axis, of said one or more first light sources.
• the first collector comprises several reflective surfaces, arranged side by side and each associated with one of the several first light sources, said several reflective surfaces having rear edges, in a main direction of propagation of the light, adjacent to a straight line on the stage, the first optical device having a line of focus coincident with said straight line or situated between said straight line and the several first light sources or else situated at the rear of said straight line at a distance less than or equal to 10mm.
• the first optical device is a mirror having a constant parabolic profile in a horizontal direction, when the lighting device is in the mounting position, so as to present a rectilinear focus line.
• each of the first, second, and optionally third optical devices is configured to deflect vertically, by reflection and/or refraction, the first, second, and optionally third light beam, respectively, from a direction corresponding to the inclination y of the stage to a direction parallel to the optical axis.
• the measures of the invention are advantageous in that they make it possible to carry out several statutory lighting functions, by integrating several lighting modules forming a profile with a general inclination in front view and/or a general inclination in view of high, considering the lighting device mounted on the vehicle, and this in a compact and simple construction.
• the use of a common plate in fact significantly simplifies the construction and assembly of the lighting device.
• FIG 1 is a representation of the front part of a motor vehicle, illustrating the inclination constraints imposed on the headlamp by the shape of the vehicle body;
• FIG 2 is a representation of constituent elements of a lighting device according to the invention
• FIG 3 is a representation of the principle of operation of a lighting module of the lighting device of Figure 2, according to a first embodiment
• FIG 4 is a representation of the principle of operation of a lighting module of the lighting device of Figure 2, according to a second embodiment
• FIG 5 is a representation of the principle of operation of a lighting module of the lighting device of Figure 2, according to a third embodiment
• FIG 6 is a top view of the two cut-off lighting modules of the lighting device of Figure 2;
• FIG 7 is a schematic representation of the light images produced by the lighting device of Figure 2, corresponding to different regulatory lighting functions.
• Figure 1 shows in perspective a front portion of the vehicle, provided with a projector corresponding to a lighting device according to the invention.
• the x axis corresponds to a longitudinal direction of the vehicle, the y axis to a transverse direction, in this case horizontal and perpendicular to the longitudinal direction, and the z axis to a vertical direction.
• the lighting device 4 is arranged at the front of the vehicle 2, on the left side (putting itself in the direction of forward travel of the vehicle), it being understood that a symmetrical lighting device is arranged on the right side of the vehicle.
• a main axis 6 of the lighting device 4 is shown; it can be observed that this main axis 6 forms an angle a, not zero, with a horizontal axis 8 located in a vertical plane containing the main axis 6 in question.
• the lighting device thus has an inclination ⁇ in front view, this inclination being in this case upwards when moving along the lighting device 4 in the direction of the corresponding lateral side of the vehicle.
• the main axis 6 forms an angle p, not zero, with a transverse axis 10 which is perpendicular to the longitudinal axis of the vehicle and horizontal.
• the lighting device thus has an inclination ⁇ in top view, this inclination being the occurrence directed towards the rear of the vehicle when moving along the lighting device 4 in the direction of the corresponding side flank of the vehicle.
• FIG 2 illustrates the main elements of the lighting device 4 of Figure 1.
• the lighting device 4 comprises several lighting modules 12, 14, 16 and 18. Each of these lighting modules comprises a light engine 12.1, 4.1, 16.1 and
• the first lighting module 12 produces a wide horizontal cut-off lighting beam
• the second lighting module 14 produces a narrow cut-off lighting beam with a jump in the center, completing the beam of wide horizontal cut-off lighting of the first lighting module 12, so as to perform a regulatory cut-off lighting function, commonly referred to as code.
• the third lighting module 16 produces an uninterrupted lighting beam, supplementing the lighting beams produced by the first and second lighting modules 12 and 14, so as to form a function of uninterrupted regulatory lighting, commonly referred to as the road.
• the fourth lighting module 18 produces an uncut lighting beam, supplementing the lighting beams produced by the first and second lighting modules 12 and 14. This uncut lighting beam is advantageously of the matrix type, namely with a limited and selectable transverse extent depending on the active light source(s).
• Each of the light engines 12.1, 14.1, 16.1 and 18.1 comprises one or more light sources 12.1.1, 14.1.1, 16.1.1 and 18.1.1, and a collector 12.1.2, 14.1.2, 16.1.2 and 18.1. 2 provided with one or more reflective surfaces, advantageously in the shape of a cap, configured to reflect the light rays emitted by the corresponding light source(s) into a light beam which is then projected by the corresponding optical device 12.2, 14.2, 16.2 and 18.2 .
• a specific light source is associated with each reflective surface.
• each of the first, third and fourth light engines 12.1, 16.1 and 18.1 comprises three light sources 12.1.1, 16.1.1 and 18.1.1 and three corresponding reflecting surfaces directly adjacent to the collector 12.1.2, 16.1.2 and 18.1.2.
• the second light engine 14.1 comprises a single light source 14.1.1 and a single reflective surface on the collector 14.1.2. It is however understood that the number of light sources and/or associated reflective surfaces may vary from the example illustrated in FIG. 2.
• each of the light engines 12.1, 14.1, 16.1 and 18.1 is arranged on a plate 20. This is then common to the light engines in question. It is generally flat and inclined at an angle y with respect to a horizontal plane 22. This inclination is around an axis of inclination 24 corresponding to the axis y, namely a transverse direction which is horizontal and perpendicular to the longitudinal direction of the vehicle. This inclination, in this case upwards from the axis of inclination 24, has the effect that the light beams produced by the light engines 12.1, 14.1, 16.1 and 18.1 are oriented with a vertical component upwards, requiring the optical device 12.2, 14.2, 16.2 and 18.2 to be offset upwards.
• the angle of inclination y of the plate 20 may be greater than or equal to 5°, preferably greater than or equal to 10°, preferably greater than or equal to 15° and/or less than or equal to 90°, preferably less than or equal to 50°, more preferably less than or equal to 40°.
• the angle of inclination y can be high especially when the optical devices 12.2, 14.2, 16.2 and 18.2 are mirrors. This angle of inclination y may be lower, for example less than or equal to 25°, in particular when the optical devices 12.2, 14.2, 16.2 and 18.2 are lenses.
• the light engines 12.1, 14.1, 16.1 and 18.1 are arranged with an offset relative to each other along the vertical projection 26 of the optical axis of the lighting device on the plate, so that the upward offset of the corresponding optical devices 12.2, 14.2, 16.2 and 18.2 is greater the greater the offset on the plate 20 along the vertical projection 26 of the optical axis.
• the offset of the light engines 12.1, 14.1, 16.1 and 18.1 on the plate 20 along the vertical projection 26 of the optical axis can be considered with reference to the distance between each of these engines light and the axis of inclination 24, this distance being measured perpendicular to said axis. It is observed that the fourth light engine 18.1 is closest to the axis of inclination 24, that the third, second and first light engine 16.1,
• the profile 6.2 is represented in the form of a straight line passing over the rear edges (relative to a general direction of propagation of the light from the light engines 12.1, 14.1, 16.1 and 18.1) manifolds 12.1.1, 14.1.1, 16.1.1 and 18.1.1. It is understood that the profile 6.2 is not necessarily perfectly straight.
• the first light engine 12.1 is further offset than the second light engine 14.1
• the second light engine 14.1 is further offset than the third light engine 16.1
• the third light engine 16.1 is further offset than fourth light engine 18.1.
• the angle of inclination ⁇ of the profile 6.2 is not necessarily constant but in any event does not change sign along the length.
• the angle of inclination ⁇ of the profile 6.2 with respect to the axis of inclination 24 can be greater than or equal to 1°, preferably greater than or equal to 5°, more preferably greater than or equal to 10°, and/or less or equal to 80°, preferably less than or equal to 30°, more preferably less than or equal to 20°.
• the optical devices 12.2, 14.2, 16.2 and 18.2 of the lighting modules 12, 14, 16 and 18 are in this case parabolic profile mirrors with a focal point or a focal line located on a rear part of the surface or surfaces reflective. This rear part is located between a rear edge of the reflective surface(s) and the corresponding light source(s). If we consider that the different lighting modules 12, 14, 16 and 18 have a distance more or less identical focal length, the offset of the light engines 12.1, 14.1, 16.1 and 18.1 on the plate 20, combined with the pivoting of the plate 20 around the pivot axis 24, as described above, then causes an offset vertical optical devices 12.2, 14.2, 16.2 and 18.2.
• the first optical device 12.2 is offset further upwards than the second optical device 14.2, the second optical device 14.2 is offset further upwards than the third optical device 16.2 and the third optical device 16.2 is offset further upwards. the top as the fourth optical device 18.2.
• the optical devices then have the profile 6.1 forming a general inclination with respect to a horizontal direction 8. This general inclination corresponds to the angle ⁇ illustrated in FIG. It is understood that the profile 6.1 is not necessarily perfectly straight. However, it forms a general inclination with respect to the horizontal direction 8. In other words, the angle of inclination ⁇ of the profile 6.1 is not necessarily constant but in any case does not change sign along its length.
• the angle of inclination ⁇ of the profile 6.1 with respect to the horizontal direction 8 can be greater than or equal to 1° and/or less than or equal to 80°, preferably less than or equal to 15°, more preferably less than or equal to 10 °.
• the profiles 6.1 and 6.2 are parallel to the main axis 6.
• FIGs 3 to 5 are representations of the principle of operation of the lighting modules of the lighting device of Figure 2, according to different embodiments.
• Each of these figures is a sectional representation of the first lighting module 12 of the lighting device 4 of FIG. 2, illustrating the principle of operation of said module, it being understood that this representation and this principle of operation is applicable to the other modules lighting.
• FIG. 3 is a representation of the principle of operation of the first lighting module 12 of the lighting device 4 of FIG. 2, according to a first embodiment.
• the optical device 12.2 is a single mirror, in accordance with FIG. 2.
• the collector 12.1.2 comprises a support in the form of a shell or cap, and a reflective surface on the inside of the support.
• the reflective surface advantageously has a profile of the elliptical or parabolic type. It is advantageously a surface of revolution around an axis parallel to the optical axis 26.1 of the light engine 12.1. Alternatively, it may be a free-form surface or a swept surface or an asymmetrical surface. It can also be multiple so as to include several sectors.
• the collector 12.1.2 in the form of a shell or cap is advantageously made of materials having good heat resistance, for example glass or synthetic polymers such as polycarbonate PC or polyetherimide PEI.
• the expression "parabolic type” generally applies to reflectors whose surface has a single focal point, that is to say a zone of convergence of the light rays such that the light rays emitted by a light source placed at the level of this convergence zone are projected at a great distance after reflection on the surface. Projected at a great distance means that these light rays do not converge on an area located at least 10 times the dimensions of the reflector.
• the reflected rays do not converge towards a convergence zone or, if they do converge, this convergence zone is located at a distance greater than or equal to 10 times the dimensions of the reflector.
• a parabolic-type surface may therefore have parabolic portions or not.
• a reflector having such a surface is generally used alone to create a light beam. Alternatively it can be used as a projection surface associated with an elliptical-type reflector.
• the light source of the parabolic-type reflector is the zone of convergence of the rays reflected by the elliptical-type reflector.
• the light source 12.1.1 is placed at a focal point of the reflecting surface so that its rays are collected and reflected along the optical axis 26.1 of the light engine 12.1. At least some of these reflected rays have angles of inclination in a vertical plane with respect to said axis which are less than or equal to 25°, preferably less than or equal to 10°, so as to be under the so-called Gaussian conditions , making it possible to obtain a stigma, that is to say a sharpness of the projected image. These are advantageously the rays reflected by the rear part of the reflecting surface.
• the optical device 12.2 is configured to project along the optical axis 28 of the lighting module 12 the light beam produced by the light engine 12.1.
• It comprises a single parabolic profile mirror with a focus 12.2.1 located on a rear part of the reflecting surface, this rear part being located between the rear edge of said surface and the light source 12.1.1.
• the focus 12.2.1 is located on the rear edge of the reflective surface.
• the focus may be at the front of the rear edge given that a horizontal cut is not formed.
• Figure 4 is a representation of the principle of operation of the first lighting module 12 of the lighting device 4 of Figure 2, according to a second embodiment.
• the reference numerals of Figures 2 and 3 are used; however, for the optical device, these numbers are increased by 100. Reference is also made to the description of FIG. 3 for identical or corresponding elements. Specific numbers are used to designate elements specific to this embodiment.
• the lighting module 12 of Figure 4 differs from that of Figure 3 in that the optical device 112.2 comprises a parabolic mirror 112.2.2 and a deflection mirror 112.2.3.
• the deflection mirror 112.2.3 advantageously flat, sends back to the parabolic mirror 112.2.2 a virtual image of the illuminated reflective surface.
• Such a configuration is advantageous for producing an uninterrupted light beam such as the third and fourth lighting modules 16 and 18 (FIG. 2).
• the focus 12.2.1 may be at a distance from the rear edge of the reflecting surface.
• FIG. 5 is a representation of the principle of operation of the first lighting module 12 of the lighting device 4 of FIG. 2, according to a third embodiment.
• the reference numerals of Figures 2 and 3 are used; however for the optical device these numbers are increased by 200. It is also made reference to the description of Figure 3 for identical or corresponding elements.
• the lighting module 12 of FIG. 5 differs from that of FIG. 3 in that the optical device 212.2 is a lens and no longer a mirror. This means that there is then no longer any inversion of the general direction of propagation of the light. It is observed that the light engine 12.1 is oriented opposite so as to illuminate in the direction of propagation of the light beam projected by the optical device 212.2.
• Figure 6 is a top view of the first and second lighting modules of the lighting device of Figure 2.
• the first lighting module 12 produces a wide light beam with horizontal cut-off.
• the light engine 12.1 comprises several light sources 12.1.1, in this case three, and the collector 12.1.2 comprises several adjacent reflecting surfaces, in this case three.
• the optical device 12.2 has the particularity of having a rectilinear focus line 12.1.2 passing through or in the vicinity of the rear ends of the reflecting surfaces, at their rear edges, thus forming the foci 12.1.1.
• the optical device 12.2 which in this case is a parabolic mirror but could in particular be a lens, has a cross-section at the y axis which is constant along said axis. This feature is advantageous when the projected light beam must have a particularly sharp horizontal cut.
• the optical device will present a corresponding curvature in an inclined plane corresponding to that of the plate 20, which will then vertically shift the reflected and projected rays, then degrading the horizontal cut.
• a curvature of the optical surfaces of the optical device in the inclined plane of the plate 20 has the effect of shifting along the z axis the projected light rays, which can be undesirable for a cut-off lighting function.
• Such a curvature makes it possible to spread out horizontally, that is to say in the xy plane, the projected light beam.
• a compromise between a constant section along the y axis and a curved profile in the xy plane can be advantageous.
• the optical device 14.2 of the second lighting module 14 has a focus
• Figure 7 is a schematic representation of the light images produced by the lighting device of Figure 2, corresponding to different regulatory lighting functions.
• the horizontal axis H and the vertical axis V intersect at the optical axis of the lighting device.
• the first lighting module 12 produces a light image 30 spread horizontally and having a clear horizontal cut-off close to the horizontal axis H, to form a dipped-type lighting function.
• the second lighting module 14 produces a narrow light image 32 horizontally (compared to the light image 30) with a horizontal cut forming a jump at the level of the optical axis of the lighting device, completing the light image 30 of the first lighting module 12 to form the code type lighting function.
• the third lighting module 16 produces a light image 34 without horizontal cut-off, complementing the light image 30 of the first lighting module 12 upwards to form a road-type lighting function.
• the fourth lighting module 18 produces a light image 36 without horizontal and segmented cutoff, completing the light image 30 of the first lighting module 12 to form a lighting function of the matrix road type with a darker zone corresponding to the ( x) unlit segment(s).

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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)

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• 2020
  • 2020-12-18 FR FR2013720A patent/FR3118120B1/fr active Active
• 2021
  • 2021-12-17 WO PCT/EP2021/086671 patent/WO2022129625A1/fr active Application Filing
  • 2021-12-17 US US18/257,125 patent/US12152744B2/en active Active
  • 2021-12-17 JP JP2023537043A patent/JP2023553725A/ja active Pending
  • 2021-12-17 EP EP21847942.6A patent/EP4264120A1/de active Pending
  • 2021-12-17 CN CN202180085533.2A patent/CN116615622A/zh active Pending

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