EP2998645A2 - Beleuchtungsvorrichtung eines fahrzeugs, die eine optische linse mit mehreren quellen verwendet - Google Patents

Beleuchtungsvorrichtung eines fahrzeugs, die eine optische linse mit mehreren quellen verwendet Download PDF

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Publication number
EP2998645A2
EP2998645A2 EP15184928.8A EP15184928A EP2998645A2 EP 2998645 A2 EP2998645 A2 EP 2998645A2 EP 15184928 A EP15184928 A EP 15184928A EP 2998645 A2 EP2998645 A2 EP 2998645A2
Authority
EP
European Patent Office
Prior art keywords
light
elementary
module
portions
exit surface
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP15184928.8A
Other languages
English (en)
French (fr)
Other versions
EP2998645A3 (de
EP2998645B1 (de
Inventor
Jean-Luc Meyrenaud
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
Original Assignee
Valeo Vision SAS
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Filing date
Publication date
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Publication of EP2998645A2 publication Critical patent/EP2998645A2/de
Publication of EP2998645A3 publication Critical patent/EP2998645A3/de
Application granted granted Critical
Publication of EP2998645B1 publication Critical patent/EP2998645B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • F21V5/00—Refractors for light sources
    • F21V5/04—Refractors for light sources of lens shape
    • F21V5/045—Refractors for light sources of lens shape the lens having discontinuous faces, e.g. Fresnel 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
    • F21S41/25—Projection lenses
    • F21S41/265—Composite lenses; Lenses with a patch-like shape
    • 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
    • F21S41/14—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
    • F21S41/19—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
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/24—Light guides
    • 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
    • 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
    • F21S41/25—Projection lenses
    • F21S41/27—Thick 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
    • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
    • F21S41/65—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources
    • F21S41/663—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources by switching light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
    • F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
    • F21S43/14—Light emitting diodes [LED]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/235—Light guides
    • F21S43/236—Light guides characterised by the shape of the light guide
    • F21S43/241—Light guides characterised by the shape of the light guide of complex shape
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/235—Light guides
    • F21S43/249—Light guides with two or more light sources being coupled into the light guide
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/26—Refractors, transparent cover plates, light guides or filters not provided in groups F21S43/235 - F21S43/255
    • 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
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
    • F21S43/19—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
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/235—Light guides
    • F21S43/242—Light guides characterised by the emission area
    • F21S43/243—Light guides characterised by the emission area emitting light from one or more of its extremities
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/27—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
    • F21S45/48—Passive cooling, e.g. using fins, thermal conductive elements or openings with means for conducting heat from the inside to the outside of the lighting devices, e.g. with fins on the outer surface of the lighting device

Definitions

  • the invention relates to a lighting device of a vehicle using a multi-source optical lens.
  • Lighting devices intended to be mounted in vehicle projectors exist and have already been the subject of patents.
  • Each assembly comprises a light source which is mounted on a substrate providing current to said source, and a lens associated with said source. All the light emitted by this light source is transmitted to an exit diopter of the lens via a conduit whose cross section progressively increases from said source to said exit diopter.
  • the exit diopter has a D-shape and makes it possible to transmit the light beams coming from the light source, in the same direction.
  • the lighting device described in this document is modular, because it can consist of a variable number of unit assemblies, depending on the lighting requirements encountered. Such a device nevertheless has the disadvantage of implementing several unitary assemblies and therefore several separate lenses, requiring a certain complexity of assembly, and generating additional costs associated with the manufacture of several lenses.
  • a lighting device has a character of modularity, through the use of several light sources, while overcoming the disadvantages noted in the state of the art.
  • the invention firstly relates to a piece of transparent material comprising at least two elementary portions each consisting of an entrance surface and an exit surface, each exit surface being focused at the entrance surface of the inlet surface. the same portion, the exit surfaces being contiguous so as to form an overall exit surface of said piece which is in one piece, the entrance surfaces being at a distance from one of the other being separated by means capable of preventing rays originating from a light source placed at the level of the input surface of a portion from passing through the exit face of the adjacent elementary portion.
  • this piece of transparent material is intended to be used in a light device, in combination with light sources placed at the entrance surfaces, so as to obtain a resulting light beam from the exit surfaces, without no parasitic light interference.
  • the part separation means and divide said part into several distinct portions, constituting dissociated light sources, having no light interaction between them.
  • this part may comprise a variable number of elementary portions, each having their specific structural and optical characteristics.
  • each entrance surface is flat and each exit surface is curved.
  • the exit surfaces of the elementary portions are contiguous, so as to form a resulting output surface of the part, which is continuous.
  • each output surface is focused at the input surface of the same portion, means that there is a horizontal point or segment in the vicinity of the input surface such that that a majority of the rays coming from this point or points of the line emerge from the exit surface while being parallel to the same plane.
  • the means are constituted by walls originating at each input surface and extending towards the corresponding exit surface. These walls are arranged to reflect the light beams coming from the input surfaces, and not to transmit them to the output surfaces of the adjacent elementary portions.
  • each wall extends towards an edge delimiting the exit surface.
  • the elementary portions are aligned, the two input surfaces of the two elementary end portions being bordered by a single wall, and the input surfaces of the other elementary portions being each bordered by two walls.
  • each of the two end elementary portions has a single wall to prevent beams from its input surface, to pass through the exit surface of the single adjacent elementary portion.
  • the other elementary portions being flanked by two adjacent elementary portions therefore need two walls to prevent the beams from their input surfaces, to pass through the exit surface of said two adjacent elementary portions.
  • each wall has a curved profile.
  • the walls are not rigorously flat. It is a low amplitude curvature, not affecting the direction of global expansion of said wall.
  • the part has several recesses delimited each by a wall of an elementary portion and a wall of the adjacent elementary portion.
  • said piece has an optimized geometry so that its weight and its size are as small as possible.
  • each hollow has a rounded bottom.
  • the two walls of the two adjacent elementary portions delimiting a hollow meet by means of a curved segment.
  • the walls are aluminized.
  • each of said walls can effectively reflect light beams from the input surface to converge them to the output surface of the same elemental portion.
  • the part is made of a material to be chosen from glass, polycarbonate and PMMA ( Polymethyl methacrylate ) .
  • exit surface and the entry surface of the same portion are vis-à-vis.
  • each exit surface is convex relative to the outside of the room.
  • the overall exit surface is convex relative to the outside of the room.
  • the second object of the invention is a light module, comprising a piece of transparent material according to the invention, a substrate and at least two light sources implanted in said substrate, said sources illuminating the input surfaces of two adjacent elementary portions, the beams coming from an input surface being able to pass only through the exit surface of the same elementary portion, the separation means preventing said beams from passing through the exit surface of the adjacent elementary portion.
  • a light module makes it possible to emit a resulting light beam, coming from the exit surfaces, having several components each coming from an elementary portion of the piece of transparent material, said beam being devoid of any parasitic signal due to light interferences between said elementary portions.
  • This module can for example be installed in a vehicle front projector to obtain a code-type lighting, or a day signal of said vehicle. Said module can also be installed in the passenger compartment of a vehicle to ensure a less intense lighting function, for the attention of passengers.
  • each light source is constituted by a light emitting diode.
  • a light emitting diode offers a good quality of light beam, while remaining a small size. It is therefore perfectly adapted to a light module according to the invention, whose dimensions must be limited to be, for example, incorporated in a motor vehicle.
  • the substrate has an implantation surface of the light sources, said surface having a central advance, so that the light sources placed at the end zones of said surface, are set back from those placed on said advanced by relative to the direction of emission of light by said sources.
  • each light source placed at an input surface of an elementary end portion is found further from the exit surface of the same elementary portion, than are the light sources placed at the level of input surfaces of the intermediate elementary portions with respect to their corresponding output surfaces.
  • the end light sources will be able to provide intense lighting focusing on the range, while the intermediate light sources will provide a spreading focus lighting over the width.
  • said module has two light sources each placed in an end zone of the implantation surface of the substrate, and three light sources placed at the level of the advanced said five sources being aligned in front view and emitting light in the same direction.
  • the two end light sources would be designed to provide intense focus-focused illumination
  • the three intermediate light sources would provide illumination with a large width.
  • the light sources are LEDs comprising at least one light emitting element, at least one light source whose edges of the light emitting element present, in front view, an orientation different from those of another LED.
  • the implantation surface of the substrate has a recess adapted to receive an electronic card.
  • This card will be used to supply power to the light sources of the module.
  • the electronic card is provided with an electrical connector.
  • a light module according to the invention comprises a radiator for cooling the light sources.
  • the radiator comprises the substrate.
  • the radiator forms a single piece.
  • the radiator is metal.
  • the third object of the invention is a vehicle light device comprising at least one light module according to the invention.
  • the rays emitted by the module at the output of the overall output surface of the module form a portion or the entirety of a lighting beam of the road, signaling, or lighting of the passenger compartment.
  • the light device may be devoid of a lens, reflector or cover after the overall exit surface.
  • a light module according to the invention has the advantage of implementing a single piece of transparent material, and intended to be used with several light sources, to fulfill a specific lighting or signaling function. Since the transparent part has a compact geometry, said module has the advantage of being compact. It also has the advantage of generating moderate costs, avoiding having to machine several lenses, each dedicated to a particular lighting and / or signaling function. It also has the advantage of being able to produce a great variability of light beams according to the number and the location of the associated light sources, to meet different needs and requirements in terms of lighting.
  • a light module according to the invention finally has the advantage of being particularly suitable for a motor vehicle, in which the light beams are necessary, whether at the level of the projectors to ensure a lighting function of the light. road or signaling, or at the passenger compartment to provide lighting for passengers.
  • a light module 1 according to the invention comprises a radiator 2 connected to a substrate 3, an electronic card 4 provided with an electrical connector 5, five light-emitting diodes 6 which will be called LEDs for the rest of the description, a part 7 made of transparent material according to the invention and a housing 8 for protection and maintenance, adapted to grip said transparent piece 7.
  • the housing 8 is fixed to the substrate 3 by means of a first series of screws 9.
  • the electronic card 4 is anchored in the substrate 3 by means of a second series of screws 10.
  • Such a module 1 is intended to be fixed for example, inside a vehicle headlamp.
  • the piece 7 of transparent material according to the invention is solid and is made of PVC (polyvinyl chloride), and plays the role of an optical lens.
  • This part schematically comprises two lateral lugs 11, 12 and a central body 13 located between said lugs 11, 12 and in position offset with respect thereto.
  • Said body 13 is bordered by two arms 14, 15 end each connected to a lug 11, 12, each of said arms 14, 15 extending in a direction which is perpendicular to that of the lug 11, 12 to which it is connected.
  • the two legs 11, 12 are strictly aligned, so that the transparent piece 7 can abut against a flat surface, by means of these tabs 11, 12.
  • the body 13 of this part 7 is divided into five elementary portions 16, 17, 18, 19, 20 full, each characterized by a surface 21, 22, 23, 24, 25 and an outlet surface 26, 27, 28, 29, 30. These five portions 16, 17, 18, 19, 20 are substantially aligned in the same direction, which is that according to which the two lugs 11, 12 are connected.
  • This transparent piece 7 thus has two elementary end portions 16, 17, materialized by the two end arms 14, 15, and three intermediate elementary portions 18, 19, 20 positioned between said end portions 16, 17 .
  • the five exit surfaces 26, 27, 28, 29, 30 are joined, to form an overall exit surface of said workpiece 7, which is continuous.
  • These five outlet surfaces 26, 27, 28, 29, 30 constitute the most advanced part of the body 13 with respect to the two lateral lugs 11, 12.
  • the five input surfaces 21, 22, 23, 24, 25 are separated from each other, and are substantially aligned with the two legs 11, 12.
  • Each portion 16, 17, 18, 19, 20 is elongate, the inlet surface 21, 22, 23, 24, 25 and the surface of outlet 26, 27, 28, 29, 30 constituting the two ends of each of said portions 16, 17, 18, 19, 20 along their longitudinal axis.
  • the three intermediate elementary portions 18, 19, 20 each have two walls 31, 32, 33, 34, 35, 36 originating at the input surface 23, 24, 25 and extending towards two edges delimiting the surface. 28, 29, 30 of the same portion 18, 19, 20.
  • These walls 31, 32, 33, 34, 35, 36 which may for example be aluminized, are intended to prevent the beams produced by a light source placed at an inlet surface 23, 24, 25 of a portion 18, 19, 20, to pass through the exit surface of an adjacent portion.
  • the two elementary end portions 16, 17 have only one wall 37, 38 intended to prevent a light source placed at the level of the input surface 21, 22, of one of them, to irradiate an exit surface of an adjacent elementary portion, since each of said end portions 16, 17 has only one adjacent elementary portion.
  • the walls 31, 32, 33, 34, 35, 36, 37, 38 of two elementary portions 16, 17, 18, 19, 20 adjacent meet by means of a curved wall segment.
  • the transparent part 7 thus has a series of four recesses 39, 40, 41, 42 aligned in alternation with the five elementary portions 16, 17, 18, 19, 20, each recess being thus delimited by a wall of an elementary portion and by a wall of an adjacent elementary portion.
  • the two inlet surfaces 21, 22 of the two end elementary portions 16, 17 are set back from the input surfaces 23, 24, 25 of the three intermediate elementary portions 18, 19, 20.
  • the average distance between the entrance surface and the exit surface is substantially constant.
  • the inlet surfaces 21, 22, 23, 24, 25 are parallel and the outlet surfaces 26, 27, 28, 29, 30 are rounded in shape.
  • the transparent part 7 is not rectilinear.
  • the lateral lugs 11, 12 are parallel and are interconnected by the body 13, which is materialized by a rectilinear segment and inclined with respect to two lugs 11, 12, of an angle less than 10 °.
  • this piece 7 comprises a right side (DR) and a left side (GA).
  • the radiator 2 and the substrate 3 constitute a one-piece piece of metal.
  • the substrate 3 is comparable to a thin plate having an implantation face 43 having a recess 44 whose contour is similar to that of the electronic card 4, said recess 44 being intended to receive said card 4.
  • This face 43 has a central protrusion 45 partially bordering the recess 44 and contributing to partially enlarge the edge surrounding said recess 44.
  • the five LEDs 6 are secured to the face 43 of the substrate 3, which is provided with the recess 44, at a zone outside said recess 44.
  • the five LEDs 6 are arranged along the edge delimiting the recess 44, three LEDs 6 being placed on the protrusion 45 and the two other LEDs 6 being placed at the face 43 of the substrate 3 located at a lower altitude than that of said protuberance 45. In this way, two end LEDs 6 frame three intermediate LEDs 6 raised.
  • Each LED 6 has an element photoemissif comparable to an object of square shape and having a small thickness.
  • the five LEDs 6 are rotated differently with respect to the forward direction, ie the transmission direction of the module.
  • these LEDs in front view, these LEDs have different orientations.
  • two LEDs can be arranged so that the edges of their light emitting elements present, in front view, a different orientation. These edges can, in front view, make between them an angle of 45 °.
  • These five LEDs 6 are arranged to emit a light beam in the same direction.
  • the transparent part 7 is fixed on the substrate 3 so that each of the five LEDs 6 secured to said substrate 3, comes to be positioned at an input surface 21, 22, 23, 24, 25 of said piece 7. More precisely, the LEDs 6 are found outside the elementary portions 16, 17, 18, 19, 20 of the part 7, so that each LED 6 can send light beams towards the input surface 21, 22, 23, 24, 25 with which it is associated, said beams passing through said input surface 21, 22, 23, 24, 25 to then pass through the exit surface 26, 27, 28, 29, 30 of the same portion.
  • the light beams coming from each input surface 21, 22, 23, 24, 25 may either directly reach the corresponding exit surface 26, 27, 28, 29, 30, or may be previously reflected on the walls 31.
  • the housing 8 is screwed onto said substrate 3 by partially covering said transparent part 7.
  • FIGS. 5A to 9B illustrate an example of use of a light module 1 according to the invention, by decomposing the resulting light beam, into several components, each of which comes from an elementary portion 16, 17, 18, 19, 20, of said module 1 associated with the LED 6 corresponding.
  • the elementary end portion 16 to the left of the module 1 and associated with the corresponding end LED 6, can be used to produce a left-handed lighting. This lighting is rather concentrated and intense.
  • the left intermediate elementary portion 18, associated with the corresponding LED 6 can be used to produce horizontally extended illumination to the left. This lighting is rather low intensity and spread transversely to the vehicle.
  • the central intermediate elementary portion 19, associated with the corresponding LED 6, can be used to produce horizontally extended illumination as far to the right as to the left. This lighting is rather low intensity and spread transversely to the vehicle.
  • the left intermediate elementary portion, associated with the corresponding LED 6, can be used to produce horizontally extended illumination to the left. This lighting is rather low intensity and spread transversely to the vehicle.
  • the elementary end portion 17 located to the left of the module 1 and associated with the corresponding end LED 6, can be used to produce a left lighting range, inclined at an angle of 15 ° to a horizontal axis. This lighting is rather concentrated and intense.
  • a light module 1 is capable of producing a resulting light beam, which is clear and precise, because devoid of any parasitic light beams due to light interferences between the different elementary portions 16, 17, 18, 19, 20 of said module 1.
  • the LEDs all have the same reference in the description, in this case the number 6, they can naturally have different structural, geometric and luminous characteristics within the same light module 1, said LEDs 6 being chosen according to specific lighting needs.

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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)
  • Arrangements Of Lighting Devices For Vehicle Interiors, Mounting And Supporting Thereof, Circuits Therefore (AREA)
EP15184928.8A 2014-09-16 2015-09-11 Beleuchtungsvorrichtung eines fahrzeugs, die eine optische linse mit mehreren quellen verwendet Active EP2998645B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1458689A FR3025865B1 (fr) 2014-09-16 2014-09-16 Dispositif d'eclairage d'un vehicule utilisant une lentille optique multisource

Publications (3)

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EP2998645A2 true EP2998645A2 (de) 2016-03-23
EP2998645A3 EP2998645A3 (de) 2016-06-15
EP2998645B1 EP2998645B1 (de) 2021-09-01

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EP (1) EP2998645B1 (de)
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FR3079598A1 (fr) * 2018-03-30 2019-10-04 Valeo Vision Module d'eclairage avec element optique multisource avec face de sortie lisse
EP3620713A1 (de) * 2018-09-07 2020-03-11 Valeo Vision Optisches monoblockteil eines kraftfahrzeugs, das eine strukturveränderung umfasst

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FR3063796A1 (fr) * 2017-03-10 2018-09-14 Valeo Vision Dispositif d'eclairage pour un faisceau lumineux avec une zone centrale assombrie
FR3079598A1 (fr) * 2018-03-30 2019-10-04 Valeo Vision Module d'eclairage avec element optique multisource avec face de sortie lisse
EP3620713A1 (de) * 2018-09-07 2020-03-11 Valeo Vision Optisches monoblockteil eines kraftfahrzeugs, das eine strukturveränderung umfasst
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Also Published As

Publication number Publication date
CN105423209A (zh) 2016-03-23
CN105423209B (zh) 2019-12-06
FR3025865A1 (fr) 2016-03-18
US20160076721A1 (en) 2016-03-17
US9879838B2 (en) 2018-01-30
EP2998645A3 (de) 2016-06-15
FR3025865B1 (fr) 2016-12-09
EP2998645B1 (de) 2021-09-01

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