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
  • F21S41/10—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
  • F21S41/148—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device the main emission direction of the LED being perpendicular to the optical axis
• • 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
  • F21S41/37—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors characterised by their material, surface treatment or coatings
• • 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
  • F21S41/50—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by aesthetic components not otherwise provided for, e.g. decorative trim, partition walls or covers

Definitions

• the subject of the invention is a light device of a motor vehicle, the device comprising a first light module and a second light module, in which the first light module comprises a first light source and a first optical device arranged to to receive light emitted by the first light source and to form, from this light, a first light beam, in which the second light module comprises a second light source and a second optical device arranged to receive light emitted by the second light source and for forming, from this light, a second light beam distinct from the first beam, characterized in that the second light module comprises a third light source and a third optical device comprising a deflection member and at least one surface diffusing, the deflection member being arranged to receive light emitted by the third s light source and to deflect this light towards said diffusing surface, the light device comprising a control unit arranged to control each of the light sources and to switch on the third light source when the first light source is on.
• control unit is capable of receiving an instruction to send a given photometric function, and is arranged to simultaneously control the switching on of the first light source and the switching on of one or other of the second and third light sources.
• Collector 43 thus has a rear edge 43a.
• the lens 44 has a focal zone, for example a line of focus 44a, passing through this rear edge 43a, so that this lens 44 projects the image of the collector 43 onto the road and so that the light beam F11 resulting from this projection has an upper cut, delimiting an illuminated zone from an unlit zone, formed by this rear edge 43a.
• the line of focus 44a of the lens 44 is curved, and thus passes through all the rear edges 43a of the collectors 43 of the sub-modules 4 of the same light module 21.
• the combination of the first two light beams F11 and the first light beam F12 thus forms a regulatory crossing type lighting beam.
• Collector 53 has, vertically, a truncated parabolic profile defining a cavity in which light-emitting diode 51 is arranged. by this light-emitting diode 51 are reflected by the reflective surface of the collector 53 according to an angle of inclination, with respect to an optical axis X-X of the lens 54, less than or equal to 25°, preferably less than 10°.
• the lens 54 has a focal zone, for example a focus 54a, located at a given point on the reflecting surface of the collector 53, so that this lens projects the image of the collector 53 onto the road and so that the light beam F21 resulting from this projection has a point of maximum intensity whose position corresponds to the position of this focus 54a vis-à-vis this reflective surface and in particular its contour.
• a focal zone for example a focus 54a, located at a given point on the reflecting surface of the collector 53, so that this lens projects the image of the collector 53 onto the road and so that the light beam F21 resulting from this projection has a point of maximum intensity whose position corresponds to the position of this focus 54a vis-à-vis this reflective surface and in particular its contour.
• the lens 54 thus projects this second light beam F21 so that it extends at least partially above the upper cutoffs of the first light beams F11 and F12.
• the second light modules 32 comprise two sub-modules 5, each similar to the sub-module 5 of the second light module 31, with the exception of the shape of the collector of these sub-modules, which make it possible to obtain a second light beam F22 wider, both horizontally and vertically, than the second light beam F21. It should be noted that the lens is common to all the sub-modules 5 of the same light module 32.
• the combination of the first light beams F11 and F12 and the second light beams F21, F22 and F23 thus forms a regulatory road type lighting beam.
• the light-emitting diodes 41, 51 of the sub-modules 4, 5 and 6 of the light modules 21, 22, 31, 32 and 33 are mounted on a common support 12, in particular a common printed circuit board, attached to a plate metal 13 forming a heat sink emitted in particular by these light-emitting diodes, and therefore provided with fins for this purpose.
• a wall 14 of this plate extends from these fins to the lenses.
• the single part 10 is attached to this plate 13 so as to form a housing of the light device 1, which can thus be integrated into a headlight of a motor vehicle.
• the light device 1 comprises a plurality of side walls 16 each defining a separator of two adjacent light modules.
• the light emitted by the third light source 71 is thus diffused homogeneously towards the entire surface of the lens 54, which thus presents a uniform lit appearance when this third light source 71 is lit.
• this light is diffused by the upper 11, lower 14 and side 16 walls makes it possible to reduce the intensity of this light and prevents it from being dazzling for another road user.
• each second light module 31, 32 and 33 comprises a blocking element 74, projecting from the plate 13 downstream of the third light source 71, this blocking element intercepting rays of light emitted by this third light source 71 directly towards the lens 54 and which would therefore be likely to be dazzling.
• the control unit activates the first light sources 41 for the emission of the first light beams F11 and F12, and the second light sources 51 for the emission of the second light beams F21, F22 and F23.
• the light device then performs said road-type function and the lenses 44 and 54, and therefore the lens 15, always have the same illuminated and uniform appearance.
• the invention cannot be limited to the embodiments specifically described in this document, and extends in particular to all equivalent means and to any technically effective combination of these means.

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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)

Applications Claiming Priority (2)

Publications (1)

Family

ID=77999198

Family Applications (1)

Country Status (5)

Families Citing this family (3)

Family Cites Families (4)

• 2021
  • 2021-09-03 FR FR2109225A patent/FR3126746B1/fr active Active
• 2022
  • 2022-09-01 EP EP22772500.9A patent/EP4396491A1/de active Pending
  • 2022-09-01 JP JP2024513984A patent/JP2024534898A/ja active Pending
  • 2022-09-01 WO PCT/EP2022/074357 patent/WO2023031341A1/fr active Application Filing
  • 2022-09-01 CN CN202280059743.9A patent/CN117916514A/zh active Pending

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