EP3124855A1 - Lighting module for motor vehicle headlight - Google Patents

Lighting module for motor vehicle headlight Download PDF

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Publication number
EP3124855A1
EP3124855A1 EP16181308.4A EP16181308A EP3124855A1 EP 3124855 A1 EP3124855 A1 EP 3124855A1 EP 16181308 A EP16181308 A EP 16181308A EP 3124855 A1 EP3124855 A1 EP 3124855A1
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EP
European Patent Office
Prior art keywords
face
lighting device
light
guide
light source
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
EP16181308.4A
Other languages
German (de)
French (fr)
Other versions
EP3124855B1 (en
Inventor
Yves Gromfeld
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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Filing date
Publication date
Application filed by Valeo Vision SAS filed Critical Valeo Vision SAS
Publication of EP3124855A1 publication Critical patent/EP3124855A1/en
Application granted granted Critical
Publication of EP3124855B1 publication Critical patent/EP3124855B1/en
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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
    • 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]
    • 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
    • F21S41/24—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
    • 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
    • F21S41/265—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
    • F21S41/20—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
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • 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
    • 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
    • F21V7/00—Reflectors for light sources
    • F21V7/04—Optical design
    • F21V7/06—Optical design with parabolic curvature
    • 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
    • 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
    • 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 present invention relates to a lighting device.
  • a preferred application relates to the automotive industry for the production of signaling and / or lighting devices, in particular vehicle headlights.
  • this beam has a cut in the upper part with a horizontal portion, preferably about 0.57 degrees below the horizon, so as not to illuminate the area in which should be the driver of a vehicle coming in the opposite direction .
  • Lighting devices for such lamps comprising at least one light source and at least one guide for directing the light rays between the source and an exit face.
  • the document EP2045515 discloses such a lighting device with a reduced compactness due to the fact that the light source is oriented perpendicular to the optical axis of the device, and a 90 ° ray return is operated within the guide.
  • the exit faces of the lighting devices are visible from the front of a vehicle, through the lens of the optical block.
  • the exit face is part of a cylindrical-shaped tip when viewed from the outside.
  • several cylindrical-shaped tips are arranged next to each other and offset in depth to be more or less close to the ice.
  • the object of the invention is thus to provide a compact lighting system whose output surface is curved, and preferably follows the profile of the ice placed downstream.
  • the global direction is defined by the average direction of the light beam composed of all the rays emitted by the light source.
  • this overall direction may be substantially perpendicular to the optical axis.
  • the overall direction may make an angle with the optical axis O of between 15 ° and 75 °, in particular between 40 ° and 50 °, or even substantially equal to 45 °.
  • the lighting device is characterized principally in that it comprises a single output portion of said light beam whose output surface is continuous in curvature, and which is common to all the modules.
  • the exit surface is smooth.
  • the lighting device according to the invention thus creates one or more beams projected to infinity, with a cutoff profile, while having a single curved and aesthetic output surface, visible through the lens of a projector.
  • This device therefore has the advantage of implementing a single output surface intended to be used with one or more light sources to perform specific lighting functions, or even signaling. Indeed, it can produce a great variability of light beams depending on the number and location of the associated light sources, to meet different needs and requirements in terms of lighting.
  • this device has a compact geometry since the rays undergo a 90 ° return inside the guide, which allows the source to project rays by perpendicular to the optical axis and to have a proximal positioning of the exit surface, compared to a conventional device where the source projects rays in a direction parallel to the optical axis and to a distal positioning of the surface of the exit.
  • the device of the invention therefore has the advantage of being compact.
  • input face associated with the light source is understood to mean that the source can be directly applied against or in the immediate vicinity of the input face.
  • this expression also includes configurations where the source is not in direct contact with the input face, in particular the configuration where it is intended to interpose at least one optical component of the collector, collimator or single conductor type. light between the source and the wafer, for example to improve / increase the amount of light penetrating into the guide by the entrance face by further limiting the light leakage, and / or to reserve the possibility of deporting the source .
  • the light guide is made of a material capable of allowing the reflection of said light beam on the return face by total internal reflection.
  • the return face may be coated with a reflective coating.
  • the invention also relates to a motor vehicle light projector comprising at least one lighting device as described above.
  • the rays issuing from the common exit surface reach said ice without encountering any obstacle.
  • the rays emitted at the output of the lighting device form a portion or the entirety of a regulatory beam of road lighting type or crossing light type.
  • Such a projector equips a motor vehicle for the illumination of the road.
  • vertical and horizontal are used in the present description to designate directions, including beam-cutting directions, in an orientation perpendicular to the horizon plane for the term “vertical”, and in a parallel orientation. in terms of the horizon for the term “horizontal”. They are to be considered in the operating conditions of the device in a vehicle. The use of these words does not mean that slight variations around the vertical and horizontal directions are excluded from the invention. For example, an inclination relative to these directions of the order of + or - 10 ° is here considered as a minor variation around the two preferred directions.
  • front and rear are to be understood by considering the direction of propagation of the light coming out of the lighting device towards the front.
  • parallel or the concept of axes includes here in particular with manufacturing or mounting tolerances, substantially parallel directions or substantially coinciding axes within this framework.
  • the cutoff profile preferably refers to the formation of a non-uniformly distributed output beam around the optical axis because of the presence of a zone of least light exposure, this zone being substantially delimited by a profile of cut that can be formed by at least two, and in particular three line segments forming an angle between them or have a more complex shape in turns such as oblique cuts.
  • the lighting device is represented in a single-module configuration, that is to say having only one light source 8.
  • This module has an optical axis O, which specifies the final orientation of the rays. outgoing module.
  • the light source 8 is represented at Figures 5 and 6 , and is configured to emit light rays.
  • the light source 8 comprises a light-emitting diode (LED) 8.
  • the LED 8 is positioned vis-à-vis an entry face 1 of a light guide, so that the light rays emitted enter said guide by this input face 1.
  • the orientation guide is configured to direct the rays toward an exit face 3, orienting them substantially parallel to a horizontal plane.
  • the exit face 3 extends transversely with respect to the entry face 1.
  • the input face 1 is flat in the present example, but could be curved in another example, being defined conventionally by a scanning radius and a profile radius.
  • the exit face 3 is rounded and has a visual aesthetic curve from outside the module. This exit face 3 plays the role of a collimation lens.
  • the return face 2 has a curved shape associated with the profile of the exit face 3 so that the light rays issuing from the guide have a direction substantially parallel to a horizontal plane.
  • This curved shape corresponds more particularly to a parabolic form.
  • the focus F of this parabola is located under the entrance face 1.
  • a point of the LED 8 is placed in the focus F of the parabola, as illustrated in Figures 5 and 6 .
  • center C of the LED 8 is located at the focus F of the dish, while in the case of the figure 5 an edge 9 of the LED 8 is located at the focus F of the dish.
  • the LED 8 emits a light beam towards the input face 1.
  • This beam is vertical, the LED 8 being configured to shoot along the Z axis and in the + Z direction.
  • the rays of this beam are then refracted by the input face 1, and propagate vertically towards the deflection face 2.
  • the latter ensures a total reflection of the incident rays, and redirect them inside the guide, to the exit face 3 in a substantially horizontal direction.
  • the rays incident on the return face 2 are perpendicular to the rays reflected by the deflection face 2. The latter thus makes a reference to 90 ° rays.
  • the exit face 3 provides a collimation, that is to say a generation of a beam of parallel rays, in the direction of the optical axis O of the module, in the horizontal plane.
  • the figure 6 shows the optical principle of the basic concept: all of the rays emitted by the LED 8 enter the guide to be guided along a path comprising a right angle, then to be collimated in the direction of the optical axis O.
  • the module has the advantage of having a small footprint in its dimension b in the direction X.
  • the return face 2 is optically linked to the outlet face 3 and to the desired distribution of the output rays.
  • the exit face 3 has a function that is more aesthetic than optical, and only serves to collimate the beam, the return face 2 has a large role to play in the optical principle of the module, and must orient properly. the rays within the guide, so as to compensate for the lack of optical influence of the exit face 3 by its curved shape.
  • the module as described could be flipped horizontally, so that the LED 8 is configured to shoot along the Z axis and in the -Z direction. In this case, the spokes will be oriented towards the bottom of the module, vertically, and no longer towards the top of the module.
  • the operation of the module remains identical, however, with the same optical principle.
  • the light beams obtained with the lighting device according to the invention comprises a cutoff zone, that is to say a boundary between a light area and a dark area to avoid dazzling drivers or people coming in the opposite direction the vehicle in question.
  • a cut is essential in light beams intended to ensure functions such as: dipped beam, fog lights, additional highway fire, additional light bend, etc.
  • a break can be achieved by arranging the light source 8 so that the focus F of the dish constituting the return face 2 is located on the rear edge 9 of the source 8 instead of being located in the center C of this source 8.
  • the LED 8 is therefore concretely offset by a distance d equal to half of its width in the direction X.
  • a light ray i1 coming from the rear edge 9 of the light source 8 and hence from the focal point F is simply refracted by the input face 1, then reflected perpendicularly along a ray r1 towards the exit face 3.
  • the radius r1 is substantially horizontal. It will remain in a horizontal plane at the exit of the device.
  • All the other light rays emitted by the source 8 will come from points situated in front of the rear edge 9 of the source 8, like the radius i2. This radius i2 is refracted and then reflected along a descending radius r2.
  • Another radius i3 from the rear edge 9 will be reflected along a horizontal radius r3 while another radius i4 from a point at the leading edge 10 will be reflected at a downwardly directed radius r4.
  • the resulting beam will therefore have a horizontal cutoff line with a lighted area below this cutoff line and a darkened area above it.
  • the horizontal cut can be achieved by logically disposing the LED in such a way that the focus of the parabola constituting the return face is located on the front edge of the source instead of being on the back edge.
  • the LED 8 can be rotatable around the Y axis at an angle of between +/- 45 ° and / or around the Z axis with an angle between +/- -15 °. These freedom of movement of the LED 8 allow in particular to generate a light beam with a cut partly oblique to the left or to the right, so as to illuminate the traffic signs and the sidewalks or aisles on the left side of the road (traffic on the left) or on the right side of the road (traffic on the right).
  • the Figures 7 and 8 show an embodiment where the lighting device according to the invention is composed of four modules 11,12,13,14.
  • modules 11,12,13,14 are aligned next to each other, and have a single continuous output surface 3, and therefore common to the modules 11,12,13,14.
  • This common output surface 3 thus integrates the four output faces 3 of the four modules 11, 12, 13, 14.
  • This outlet surface 3 has a curved shape, aesthetic. It will be visible from the outside through a mirror 15 of a projector. Preferably, this exit surface 3 follows the curvature of the lens 15 of the projector.
  • each of the modules 11, 12, 13, 14 fulfills a very precise lighting function.
  • the modules 11, 12, 13, 14 are not identical to each other. They have variations in the shapes of the faces, as well as in the dimensions, especially in the X direction.
  • the end modules 11, 14 have a dimension in the X direction much greater than that of the central modules 12,13. Therefore, the position of the light sources 8 will also be different depending on the modules 11,12,13,14 with which they are associated. In other words, the distance between the light source 8 and the common output surface 3 of the device varies according to the lighting functions of the modules 11, 12, 13, 14.
  • This type of four-module lighting device 11, 12, 13, 14 makes it possible, for example, to generate an oblique cut-off light towards the right, as illustrated by the network of isolux curves in figure 9 .
  • the isolux curves are obtained on a screen placed at 25 meters from the lighting device, perpendicular to the general optical axis of the device whose intersection with the screen corresponds to the 0 ° graduation along the abscissa axis.
  • the vertical axis passing through 0 ° corresponds to the intersection of the screen and the vertical plane passing through the general optical axis.
  • the dimension e 'of the common exit surface 3 in the Z direction is of the order of 20 mm.
  • the vertical parallel side faces 4 of the modules 11, 12, 13, 14 constitute intermediate walls between the modules 11, 12, 13, 14.
  • Two adjacent modules may have, at their surface in common, two side walls 4 contiguous each corresponding to a module, or a single side wall 4 common to both modules.
  • These side walls 4 may be aluminized, since they are intended to prevent the beams produced by a light source 8 placed at a guide of a module, to pass through the guide of the adjacent module.
  • FIG. 10 Another example of nesting of four modules 11,12,13,14 forming a lighting device is presented in figure 10 , in particular with a representation of the side walls 4.
  • the latter have sometimes complex shapes, with recesses, so as to fit into each other.
  • the lighting device being housed inside the space delimited by the housing 18 and the closing window 15, the lighting device being arranged in such a way that the rays issuing from the said common exit surface 3 reach said closure glass.
  • the LEDs 8 of the lighting device are positioned on a substrate 17 which includes precise locations for this purpose.
  • a heat sink 16 is conventionally connected to this substrate 17.
  • the light device according to the invention has been described in the context of an oblique cut beam, this device can also be adapted to other types of cut-off beams, requiring the same optics and different positions of light sources. to generate respective light beams compatible with different types of regulations.
  • the light device according to the invention may be a lighting and / or signaling device.

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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)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

Dispositif d'éclairage, notamment pour véhicule automobile, comprenant au moins un module présentant un axe optique O, chaque module comportant :
- une source lumineuse 8 configurée pour émettre un faisceau lumineux selon une direction globale d'allure sensiblement sécante à l'axe optique O,
- un guide d'orientation de la lumière apte à diriger le faisceau lumineux émis par ladite source lumineuse 8 de façon sensiblement parallèle audit axe optique O en sortie dudit guide et apte à former une coupure dans ledit faisceau.Lighting device, especially for a motor vehicle, comprising at least one module having an optical axis O, each module comprising:
a light source 8 configured to emit a light beam in a global direction of appearance substantially intersecting with the optical axis O,
- A light guide guide capable of directing the light beam emitted by said light source 8 substantially parallel to said optical axis O output of said guide and adapted to form a cut in said beam.

Ce dispositif se caractérise en ce qu'il comprend une unique portion de sortie dudit faisceau lumineux dont la surface de sortie 3 est continue en courbure, et qui est commune à tous les modules.

Figure imgaf001
This device is characterized in that it comprises a single output portion of said light beam whose output surface 3 is continuous in curvature, and which is common to all modules.
Figure imgaf001

Description

Domaine de l'inventionField of the invention

La présente invention est relative à un dispositif d'éclairage.The present invention relates to a lighting device.

Une application préférée concerne l'industrie automobile pour la réalisation de dispositifs de signalisation et/ ou d'éclairage, notamment de projecteurs de véhicule.A preferred application relates to the automotive industry for the production of signaling and / or lighting devices, in particular vehicle headlights.

Dans ce dernier domaine, on connait des projecteurs, parmi lesquels on trouve traditionnellement des feux de croisement, ou codes, de portée sur la route avoisinant les 70 mètres, qui sont utilisés essentiellement la nuit et dont la répartition du faisceau lumineux est telle qu'elle permet de ne pas éblouir le conducteur d'un véhicule croisé. Typiquement, ce faisceau présente une coupure en partie supérieure avec une portion horizontale, préférentiellement environ 0,57 degrés en dessous de l'horizon, afin de ne pas éclairer la zone dans laquelle devrait se trouver le conducteur d'un véhicule arrivant en sens inverse.In the latter area, we know projectors, among which we find traditionally low beam, or codes, range on the road around 70 meters, which are used mainly at night and whose distribution of the light beam is such that it does not dazzle the driver of a crossover vehicle. Typically, this beam has a cut in the upper part with a horizontal portion, preferably about 0.57 degrees below the horizon, so as not to illuminate the area in which should be the driver of a vehicle coming in the opposite direction .

Dans ce domaine, on trouve également des feux de route, ainsi que des feux antibrouillards, présentant tous les deux un faisceau à coupure.In this area, there are also high beam, as well as fog lamps, both having a cut-off beam.

Etat de la techniqueState of the art

On connait des dispositifs d'éclairage pour de tels feux, comportant au moins une source lumineuse et au moins un guide d'orientation des rayons lumineux entre la source et une face de sortie. En particulier, le document EP2045515 divulgue un tel dispositif d'éclairage avec une compacité réduite grâce au fait que la source lumineuse soit orientée perpendiculairement à l'axe optique du dispositif, et qu'un renvoi des rayons à 90° soit opéré au sein du guide.Lighting devices for such lamps are known, comprising at least one light source and at least one guide for directing the light rays between the source and an exit face. In particular, the document EP2045515 discloses such a lighting device with a reduced compactness due to the fact that the light source is oriented perpendicular to the optical axis of the device, and a 90 ° ray return is operated within the guide.

L'inconvénient avec ce dispositif réside dans la forme de la face de sortie du guide, qui manque d'esthétisme.The disadvantage with this device lies in the shape of the exit face of the guide, which lacks aesthetics.

En effet, les faces de sortie des dispositifs d'éclairage sont visibles depuis l'avant d'un véhicule, à travers la glace du bloc optique. En l'espèce, dans le document cité, la face de sortie fait partie d'un embout d'allure cylindrique lorsqu'il est observé depuis l'extérieur. Dans le cas d'une pluralité de guides pour une pluralités de sources lumineuses, ce sont plusieurs embouts d'allure cylindrique qui sont disposés les uns à côté des autres et décalés en profondeur pour être plus ou moins proche de la glace.Indeed, the exit faces of the lighting devices are visible from the front of a vehicle, through the lens of the optical block. In this case, in the cited document, the exit face is part of a cylindrical-shaped tip when viewed from the outside. In the case of a plurality of guides for a plurality of light sources, several cylindrical-shaped tips are arranged next to each other and offset in depth to be more or less close to the ice.

Or la nouvelle tendance est d'avoir des systèmes d'éclairage de plus en plus compacts, et dont les surfaces de sortie suivent de préférence le profil galbé des glaces.Now the new trend is to have lighting systems increasingly compact, and whose exit surfaces preferably follow the curved profile of the windows.

Le fait d'avoir une pluralité de faces de sortie cylindrique est relativement inesthétique et ne permet pas de garder la continuité en courbure de la glace située en vis-à-vis.The fact of having a plurality of cylindrical outlet faces is relatively unsightly and does not allow to keep the continuity in curvature of the ice located vis-à-vis.

L'objectif de l'invention consiste ainsi à proposer un système d'éclairage compact dont la surface de sortie est galbée, et suit de préférence le profil de la glace placée en aval.The object of the invention is thus to provide a compact lighting system whose output surface is curved, and preferably follows the profile of the ice placed downstream.

Résumé de l'inventionSummary of the invention

Le dispositif d'éclairage pour véhicule automobile selon l'invention comprend au moins un module présentant un axe optique O, chaque module comportant :

  • une source lumineuse configurée pour émettre un faisceau lumineux selon une direction globale d'allure sensiblement sécante à l'axe optique O ;
  • un guide d'orientation de la lumière apte à diriger le faisceau lumineux émis par ladite source lumineuse de façon sensiblement parallèle audit axe optique O en sortie dudit guide et apte à former une coupure dans ledit faisceau.
The lighting device for a motor vehicle according to the invention comprises at least one module having an optical axis O, each module comprising:
  • a light source configured to emit a light beam in a global direction of appearance substantially secant to the optical axis O;
  • a light guide guide capable of directing the light beam emitted by said light source substantially parallel to said optical axis O at the output of said guide and able to form a cut in said beam.

La direction globale est définie par la direction moyenne du faisceau lumineux composé de tous les rayons émis par la source lumineuse. Avantageusement, cette direction globale peut être sensiblement perpendiculaire à l'axe optique. En variante, la direction globale peut faire un angle avec l'axe optique O compris entre 15° et 75°, notamment compris entre 40° et 50°, voire sensiblement égal à 45°.The global direction is defined by the average direction of the light beam composed of all the rays emitted by the light source. Advantageously, this overall direction may be substantially perpendicular to the optical axis. In a variant, the overall direction may make an angle with the optical axis O of between 15 ° and 75 °, in particular between 40 ° and 50 °, or even substantially equal to 45 °.

Le dispositif d'éclairage se caractérise à titre principal en ce que qu'il comprend une unique portion de sortie dudit faisceau lumineux dont la surface de sortie est continue en courbure, et qui est commune à tous les modules.The lighting device is characterized principally in that it comprises a single output portion of said light beam whose output surface is continuous in curvature, and which is common to all the modules.

Le cas échéant, la surface de sortie est lisse.In this case, the exit surface is smooth.

Le dispositif d'éclairage selon l'invention créé ainsi un ou plusieurs faisceaux projetés à l'infini, avec un profil de coupure, tout en présentant une seule surface de sortie galbée et esthétique, visible à travers la glace d'un projecteur. Ce dispositif présente donc l'avantage de mettre en oeuvre une unique surface de sortie destinée à être utilisée avec une ou plusieurs sources lumineuses devant remplir des fonctions spécifiques d'éclairage, voire de signalisation. En effet, il peut produire une grande variabilité de faisceaux lumineux en fonction du nombre et de l'emplacement des sources lumineuses associées, pour répondre à différents besoins et exigences en matière d'éclairage.The lighting device according to the invention thus creates one or more beams projected to infinity, with a cutoff profile, while having a single curved and aesthetic output surface, visible through the lens of a projector. This device therefore has the advantage of implementing a single output surface intended to be used with one or more light sources to perform specific lighting functions, or even signaling. Indeed, it can produce a great variability of light beams depending on the number and location of the associated light sources, to meet different needs and requirements in terms of lighting.

De plus, ce dispositif possède une géométrie compacte puisque les rayons subissent un renvoi à 90° à l'intérieur du guide, ce qui permet à la source de projeter des rayons par exemple perpendiculairement à l'axe optique et d'avoir un positionnement proximal de la surface de sortie, par rapport à un dispositif classique où la source projette des rayons dans une direction parallèle à l'axe optique et à un positionnement distal de la surface de sortie. Le dispositif de l'invention présente donc l'avantage d'être peu encombrant.In addition, this device has a compact geometry since the rays undergo a 90 ° return inside the guide, which allows the source to project rays by perpendicular to the optical axis and to have a proximal positioning of the exit surface, compared to a conventional device where the source projects rays in a direction parallel to the optical axis and to a distal positioning of the surface of the exit. The device of the invention therefore has the advantage of being compact.

Le guide a un rôle important, puisqu'il réalise ce renvoi à 90°. Le guide comprend trois dioptres, à savoir :

  • une face d'entrée associée à la source lumineuse ;
  • une face de sortie confondue avec la surface de sortie commune du dispositif d'éclairage ;
  • une face de renvoi pour réfléchir lesdits rayons lumineux issus de la face d'entrée vers la face de sortie.
The guide has an important role, since it carries out this reference to 90 °. The guide includes three dioptres, namely:
  • an input face associated with the light source;
  • an output face coincides with the common output surface of the lighting device;
  • a return face for reflecting said light rays from the input face to the output face.

Le renvoi à 90° est donc réalisé par la face de renvoi du guide.The return to 90 ° is therefore achieved by the return face of the guide.

On comprend par « face d'entrée associée à la source lumineuse » le fait que la source puisse être directement appliquée contre ou à proximité immédiate de la face d'entrée. Mais cette expression inclut également des configurations où la source n'est pas en contact direct avec la face d'entrée, notamment la configuration où l'on prévoit d'interposer au moins un composant optique de type collecteur, collimateur, ou simple conduit de lumière entre la source et la tranche, par exemple pour améliorer / augmenter la quantité de lumière pénétrant dans le guide par la face d'entrée en limitant d'avantage les fuites de lumière, et/ou pour se réserver la possibilité de déporter la source.The term "input face associated with the light source" is understood to mean that the source can be directly applied against or in the immediate vicinity of the input face. However, this expression also includes configurations where the source is not in direct contact with the input face, in particular the configuration where it is intended to interpose at least one optical component of the collector, collimator or single conductor type. light between the source and the wafer, for example to improve / increase the amount of light penetrating into the guide by the entrance face by further limiting the light leakage, and / or to reserve the possibility of deporting the source .

Avantageusement, le guide de lumière est réalisé dans un matériau apte à permettre la réflexion dudit faisceau lumineux sur la face de renvoi par réflexion totale interne.Advantageously, the light guide is made of a material capable of allowing the reflection of said light beam on the return face by total internal reflection.

En variante, la face de renvoi peut être revêtue d'un revêtement réfléchissant.Alternatively, the return face may be coated with a reflective coating.

Selon différents modes de réalisation de l'invention qui pourront être pris ensemble ou séparément :

  • la face d'entrée du guide est agencée de sorte à réfracter le faisceau lumineux en provenance de la source lumineuse en direction de la face de renvoi.
  • la face d'entrée peut être plane ou non, notamment courbe.
  • la face de renvoi du guide est agencée pour collecter le faisceau lumineux réfracté en provenance de la face d'entrée et pour réfléchir ce faisceau lumineux vers la face de sortie du guide.
  • la face de renvoi présente un foyer F et en ce que la source lumineuse est positionnée dans un voisinage de ce foyer F de sorte que le faisceau lumineux réfléchi par la face de renvoi vers la face de sortie présente une coupure : le cas échéant, la source lumineuse est positionnée par rapport au foyer de la face de renvoi de sorte que le faisceau lumineux issu de la face de sortie présente une coupure plate, notamment horizontale ou en variante oblique.
  • la face de renvoi présente un profil globalement parabolique admettant un foyer F situé au voisinage de la source lumineuse : cette face de renvoi peut présenter une forme cylindrique de génératrice parabolique et de directrice dirigée selon un axe Y perpendiculaire à l'axe optique O.
  • la face de renvoi est liée optiquement à la face de sortie et à la distribution désirée des rayons lumineux en sortie du module : le cas échéant, la face de renvoi peut être lisse. En variante, la face de renvoi peut être pourvue de motifs optiques comme des stries ou peut être facétisée.
  • la source lumineuse présente un centre de symétrie décentré par rapport au foyer F de la face de renvoi avec un décalage selon la direction de l'axe optique O.
  • la source lumineuse présente une surface d'émission dudit faisceau pourvue d'un bord latéral, et en ce que la source lumineuse est disposée de sorte que le foyer F de la face de renvoi soit positionné sur ce bord.
  • la source lumineuse est positionnée de sorte que ledit bord soit sensiblement perpendiculaire à l'axe optique O.
  • la source lumineuse est positionnée de sorte que le bord fasse un angle avec l'axe optique O sensiblement égal à 15°.
  • la face de sortie du guide est agencée pour projeter le faisceau lumineux réfléchi par la face de renvoi à l'infini : on entend par le terme « infini » une distance très supérieure aux dimensions du module, par exemple 25m. Le cas échéant, le dispositif est dépourvu d'un système optique de projection autre que la face de sortie du module.
  • la face de sortie du guide est agencée de sorte que les rayons émergeants de la face de sortie du guide soient collimatés, notamment suivant l'axe optique O du module.
  • le dispositif d'éclairage comprend une pluralité de modules, les guides ayant des parois latérales pour empêcher que des rayons issus d'une source lumineuse associée à un guide puisse passer dans le guide adjacent : dans ce cas, le faisceau lumineux émis par une source lumineuse se propage dans le guide qui lui est associé par réflexion interne totale sur lesdites parois latérales.
  • les parois latérales des guides peuvent par exemple être aluminées : de cette manière, ces parois peuvent réfléchir efficacement les faisceaux lumineux vers la face de sortie du guide.
  • le dispositif d'éclairage comporte au moins un module d'un dispositif où le bord de la source lumineuse est sensiblement perpendiculaire à l'axe optique, et un module d'un dispositif où le bord de la source lumineuse fait un angle avec l'axe optique sensiblement égal à 15°.
  • la distance entre la source lumineuse et la surface de sortie commune du dispositif varie selon les fonctions d'éclairage des modules.
  • la surface de sortie commune du dispositif d'éclairage est monobloc.
  • la surface de sortie commune est convexe par rapport à l'extérieur du dispositif d'éclairage.
  • pour chaque guide, la face de sortie s'étend transversalement, ou obliquement par rapport à la face d'entrée.
  • la source lumineuse peut être une diode électroluminescente (LED) unique : une telle diode propose une bonne qualité de faisceau lumineux, tout en demeurant d'une taille réduite. Elle est donc parfaitement adaptée à un module selon l'invention, dont les dimensions doivent être limitées pour pouvoir être incorporé dans un véhicule automobile.
  • la source lumineuse peut être une LED formée par l'association de plusieurs puces émettrices de type LED alignées.
According to various embodiments of the invention that can be taken together or separately:
  • the input face of the guide is arranged to refract the light beam from the light source towards the return face.
  • the input face may be flat or not, in particular curved.
  • the return face of the guide is arranged to collect the refracted light beam from the input face and to reflect this light beam towards the output face of the guide.
  • the return face has a focus F and in that the light source is positioned in a vicinity of this focal point F so that the light beam reflected by the return face towards the exit face has a cutoff: where appropriate, the light source is positioned relative to the focus of the face of return so that the light beam from the exit face has a flat cut, in particular horizontal or oblique variant.
  • the return face has a generally parabolic profile admitting a focus F located in the vicinity of the light source: this deflection face may have a cylindrical form of parabolic generator and director directed along a Y axis perpendicular to the optical axis O.
  • the return face is optically linked to the exit face and to the desired distribution of light rays at the output of the module: if necessary, the return face can be smooth. Alternatively, the return face may be provided with optical patterns such as streaks or may be faceted.
  • the light source has a center of symmetry that is off-center with respect to the focus F of the deflection face with an offset in the direction of the optical axis O.
  • the light source has an emission surface of said beam provided with a lateral edge, and in that the light source is arranged so that the focus F of the return face is positioned on this edge.
  • the light source is positioned so that said edge is substantially perpendicular to the optical axis O.
  • the light source is positioned so that the edge makes an angle with the optical axis O substantially equal to 15 °.
  • the outlet face of the guide is arranged to project the light beam reflected by the reference face to infinity: the term "infinite" means a distance much greater than the dimensions of the module, for example 25m. If necessary, the device is devoid of a projection optical system other than the exit face of the module.
  • the outlet face of the guide is arranged so that the rays emerging from the outlet face of the guide are collimated, in particular along the optical axis O of the module.
  • the lighting device comprises a plurality of modules, the guides having side walls to prevent rays from a light source associated with a guide can pass into the adjacent guide: in this case, the light beam emitted by a source light propagates in the guide associated with it by total internal reflection on said side walls.
  • the side walls of the guides may for example be aluminized: in this way, these walls can effectively reflect the light beams towards the outlet face of the guide.
  • the lighting device comprises at least one module of a device where the edge of the light source is substantially perpendicular to the optical axis, and a module of a device where the edge of the light source is at an angle with the optical axis substantially equal to 15 °.
  • the distance between the light source and the common output surface of the device varies according to the lighting functions of the modules.
  • the common output surface of the lighting device is monobloc.
  • the common exit surface is convex relative to the outside of the lighting device.
  • for each guide, the exit face extends transversely or obliquely with respect to the entry face.
  • the light source may be a single light emitting diode (LED): such a diode provides a good quality of light beam, while remaining a small size. It is therefore perfectly adapted to a module according to the invention, whose dimensions must be limited to be incorporated in a motor vehicle.
  • the light source can be an LED formed by the association of several emitting chips LED aligned type.

L'invention a également pour objet un projecteur lumineux pour véhicule automobile comprenant au moins un dispositif d'éclairage tel que décrit ci-dessus.The invention also relates to a motor vehicle light projector comprising at least one lighting device as described above.

Avantageusement, ce projecteur lumineux comprend :

  • un boîtier destiné à être fixé sur un véhicule,
  • une glace de fermeture dudit boîtier,
ledit dispositif d'éclairage étant logé à l'intérieur de l'espace délimité par le boîtier et la glace de fermeture, le dispositif d'éclairage étant agencé de manière à ce que les rayons sortant de ladite surface de sortie commune atteignent ladite glace de fermeture.Advantageously, this luminous projector comprises:
  • a case intended to be fixed on a vehicle,
  • a closing window of said housing,
said lighting device being housed inside the space defined by the housing and the closure glass, the lighting device being arranged in such a way that the rays issuing from said common exit surface reach said ice-cream closing.

Avantageusement, les rayons sortant de la surface de sortie commune atteignent ladite glace sans rencontrer d'obstacle.Advantageously, the rays issuing from the common exit surface reach said ice without encountering any obstacle.

De façon préférentielle, les rayons émis en sortie du dispositif d'éclairage forment une portion ou l'intégralité d'un faisceau règlementaire de type éclairage de route ou de type éclairage de croisement.Preferably, the rays emitted at the output of the lighting device form a portion or the entirety of a regulatory beam of road lighting type or crossing light type.

Un tel projecteur équipe un véhicule automobile pour l'éclairage de la route.Such a projector equips a motor vehicle for the illumination of the road.

Présentation des figuresPresentation of figures

L'invention sera mieux comprise, et d'autres buts, détails, caractéristiques et avantages de celle-ci apparaîtront plus clairement au cours de la description explicative détaillée qui va suivre, d'au moins un mode de réalisation de l'invention donné à titre d'exemple purement illustratif et non limitatif, en référence aux dessins schématiques annexés.The invention will be better understood, and other objects, details, features and advantages thereof will become more clearly apparent in the following detailed explanatory description of at least one embodiment of the invention given to title purely illustrative and non-limiting example, with reference to the accompanying schematic drawings.

Sur ces dessins :

  • les figures 1 et 2 représentent en perspective le dispositif d'éclairage de l'invention, dans un mode de réalisation à un module :
  • la figure 3 est une vue de côté du dispositif d'éclairage selon les figures 1 et 2 ;
  • la figure 4 est une vue de face du dispositif d'éclairage selon les figures 1 et 2 ;
  • la figure 5 illustre schématiquement le chemin emprunté par les rayons lumineux au sein du dispositif d'éclairage ;
  • la figure 6 est une vue de côté du dispositif d'éclairage et reprend en partie le schéma de la figure 5 ;
  • les figures 7 et 8 représentent en perspective le dispositif d'éclairage de l'invention, dans un mode de réalisation à quatre modules ;
  • la figure 9 est un réseau de courbes isolux obtenu avec le dispositif des figures 7 et 8 ;
  • la figure 10 montre un exemple d'intégration du dispositif d'éclairage selon les figures 7 et 8 dans un projecteur lumineux.
On these drawings:
  • the Figures 1 and 2 represent in perspective the lighting device of the invention, in one embodiment to a module:
  • the figure 3 is a side view of the lighting device according to the Figures 1 and 2 ;
  • the figure 4 is a front view of the lighting device according to the Figures 1 and 2 ;
  • the figure 5 schematically illustrates the path taken by the light rays within the lighting device;
  • the figure 6 is a side view of the lighting device and partly resumes the scheme of the figure 5 ;
  • the Figures 7 and 8 represent in perspective the lighting device of the invention, in a four-module embodiment;
  • the figure 9 is a network of isolux curves obtained with the device of Figures 7 and 8 ;
  • the figure 10 shows an example of integration of the lighting device according to Figures 7 and 8 in a bright projector.

Description détailléedetailed description

Les termes « vertical » et « horizontal » sont utilisés dans la présente description pour désigner des directions, notamment des directions de coupure de faisceau, suivant une orientation perpendiculaire au plan de l'horizon pour le terme « vertical », et suivant une orientation parallèle au plan de l'horizon pour le terme « horizontal ». Elles sont à considérer dans les conditions de fonctionnement du dispositif dans un véhicule. L'emploi de ces mots ne signifie pas que de légères variations autour des directions verticale et horizontale soient exclues de l'invention. Par exemple, une inclinaison relativement à ces directions de l'ordre de + ou - 10° est ici considérée comme une variation mineure autour des deux directions privilégiées.The terms "vertical" and "horizontal" are used in the present description to designate directions, including beam-cutting directions, in an orientation perpendicular to the horizon plane for the term "vertical", and in a parallel orientation. in terms of the horizon for the term "horizontal". They are to be considered in the operating conditions of the device in a vehicle. The use of these words does not mean that slight variations around the vertical and horizontal directions are excluded from the invention. For example, an inclination relative to these directions of the order of + or - 10 ° is here considered as a minor variation around the two preferred directions.

De même, dans tout le présent texte, les termes « avant » et « arrière » sont à comprendre en considérant le sens de propagation de la lumière sortant du dispositif d'éclairage vers l'avant.Likewise, throughout the present text, the terms "front" and "rear" are to be understood by considering the direction of propagation of the light coming out of the lighting device towards the front.

Le terme « parallèle » ou la notion d'axes confondus s'entend ici notamment avec les tolérances de fabrication ou de montage, des directions sensiblement parallèles ou des axes sensiblement confondus entre dans ce cadre.The term "parallel" or the concept of axes includes here in particular with manufacturing or mounting tolerances, substantially parallel directions or substantially coinciding axes within this framework.

Le profil de coupure s'entend préférentiellement de la formation d'un faisceau de sortie non uniformément réparti autour de l'axe optique du fait de la présence d'une zone de moindre exposition lumineuse, cette zone étant sensiblement délimitée par un profil de coupure qui peut être formé par au moins deux, et notamment trois segments de droite formant un angle entre eux ou avoir une forme plus complexe en virage telles que les coupures obliques.The cutoff profile preferably refers to the formation of a non-uniformly distributed output beam around the optical axis because of the presence of a zone of least light exposure, this zone being substantially delimited by a profile of cut that can be formed by at least two, and in particular three line segments forming an angle between them or have a more complex shape in turns such as oblique cuts.

Le cas représenté aux différentes figures est particulièrement adapté à une implantation dans un projecteur à l'avant d'un véhicule automobile.The case shown in the various figures is particularly suitable for installation in a projector at the front of a motor vehicle.

En référence aux figures 1 à 6, le dispositif d'éclairage est représenté dans une configuration à un seul module, c'est-à-dire n'ayant qu'une seule source lumineuse 8. Ce module présente un axe optique O, qui précise l'orientation finale des rayons sortants du module.With reference to Figures 1 to 6 , the lighting device is represented in a single-module configuration, that is to say having only one light source 8. This module has an optical axis O, which specifies the final orientation of the rays. outgoing module.

La source lumineuse 8 est représentée aux figures 5 et 6, et est configurée pour émettre des rayons lumineux. Ici, la source lumineuse 8 comprend une diode électroluminescente (LED) 8.The light source 8 is represented at Figures 5 and 6 , and is configured to emit light rays. Here, the light source 8 comprises a light-emitting diode (LED) 8.

La LED 8 est positionnée en vis-à-vis d'une face d'entrée 1 d'un guide d'orientation de la lumière, de sorte que les rayons lumineux émis pénètrent à l'intérieur dudit guide par cette face d'entrée 1. Le guide d'orientation est configuré pour diriger les rayons vers une face de sortie 3, en les orientant de façon sensiblement parallèle à un plan horizontal.The LED 8 is positioned vis-à-vis an entry face 1 of a light guide, so that the light rays emitted enter said guide by this input face 1. The orientation guide is configured to direct the rays toward an exit face 3, orienting them substantially parallel to a horizontal plane.

Le guide est notamment représenté sur les figures 1 à 4. Il comporte :

  • une face d'entrée 1 mentionnée précédemment, horizontale, située en partie inférieure du guide, et sous laquelle vient se positionner la LED ;
  • une face de renvoi 2 positionnée en vis-à-vis de la face d'entrée 1 et orientée obliquement ;
  • une face de prolongement 6 de la face de renvoi 2 venant rejoindre la face d'entrée 1 et située à l'arrière 20 du module ;
  • une face de sortie 3 mentionnée précédemment, verticale, située à l'avant 19 du module ;
  • une face supérieure 5 horizontale réalisant la jonction entre la face de renvoi 2 et la face de sortie 3 ;
  • une face inférieure 7 oblique réalisant la jonction entre la face d'entrée 1 et la face de sortie 3 ;
  • deux faces latérales 4 parallèles verticales dont le contour est délimité par toutes les autres faces du module précitées.
The guide is represented in particular on Figures 1 to 4 . It comprises :
  • an input face 1 mentioned above, horizontal, located in the lower part of the guide, and in which is positioned the LED;
  • a return face 2 positioned vis-à-vis the input face 1 and oriented obliquely;
  • an extension face 6 of the return face 2 coming to join the input face 1 and located at the rear 20 of the module;
  • an exit face 3 previously mentioned, vertical, located at the front 19 of the module;
  • a horizontal upper face 5 forming the junction between the return face 2 and the outlet face 3;
  • an oblique lower face 7 forming the junction between the inlet face 1 and the outlet face 3;
  • two parallel vertical side faces 4 whose contour is delimited by all the other faces of the aforementioned module.

Dans un exemple particulier, le dispositif d'éclairage à un seul module pourra présenter les dimensions suivantes :

  • dimension b selon la direction X : 60mm
  • dimension c selon la direction Y : 40mm
  • dimension a selon la direction Z : 31 mm.
In a particular example, the single-module lighting device may have the following dimensions:
  • dimension b according to the direction X: 60mm
  • dimension c in the Y direction: 40mm
  • dimension a in the direction Z: 31 mm.

La face de sortie 3 s'étend transversalement par rapport à la face d'entrée 1.The exit face 3 extends transversely with respect to the entry face 1.

La face d'entrée 1 est plane dans le présent exemple, mais pourrait être courbée dans un autre exemple, en étant définie de façon classique par un rayon de balayage et un rayon de profil.The input face 1 is flat in the present example, but could be curved in another example, being defined conventionally by a scanning radius and a profile radius.

La face de sortie 3 est arrondie et présente un galbe esthétique visuellement depuis l'extérieur du module. Cette face de sortie 3 joue le rôle d'une lentille de collimation.The exit face 3 is rounded and has a visual aesthetic curve from outside the module. This exit face 3 plays the role of a collimation lens.

La face de renvoi 2 a une forme courbe associée au profil de la face de sortie 3 pour que les rayons lumineux sortants du guide aient une direction sensiblement parallèle à un plan horizontal. Cette forme courbe correspond plus particulièrement à une forme parabolique.The return face 2 has a curved shape associated with the profile of the exit face 3 so that the light rays issuing from the guide have a direction substantially parallel to a horizontal plane. This curved shape corresponds more particularly to a parabolic form.

Le foyer F de cette parabole se situe sous la face d'entrée 1. Un point de la LED 8 est placée au foyer F de la parabole, comme illustré aux figures 5 et 6. Dans le cas de la figure 6, le centre C de la LED 8 est située au niveau du foyer F de la parabole, tandis que dans le cas de la figure 5, un bord 9 de la LED 8 est situé au niveau du foyer F de la parabole.The focus F of this parabola is located under the entrance face 1. A point of the LED 8 is placed in the focus F of the parabola, as illustrated in Figures 5 and 6 . In the case of figure 6 , center C of the LED 8 is located at the focus F of the dish, while in the case of the figure 5 an edge 9 of the LED 8 is located at the focus F of the dish.

La LED 8 émet un faisceau lumineux en direction de la face d'entrée 1. Ce faisceau est d'allure vertical, la LED 8 étant configurée pour tirer selon l'axe Z et dans le sens +Z. Les rayons de ce faisceau sont alors réfractés par la face d'entrée 1, et se propagent verticalement en direction de la face de renvoi 2. Cette dernière assure une réflexion totale des rayons incidents, et les redirigent à l'intérieur du guide, vers la face de sortie 3, dans une direction sensiblement horizontale.The LED 8 emits a light beam towards the input face 1. This beam is vertical, the LED 8 being configured to shoot along the Z axis and in the + Z direction. The rays of this beam are then refracted by the input face 1, and propagate vertically towards the deflection face 2. The latter ensures a total reflection of the incident rays, and redirect them inside the guide, to the exit face 3 in a substantially horizontal direction.

Par conséquent, les rayons incidents sur la face de renvoi 2 sont d'allure perpendiculaire aux rayons réfléchis par la face de renvoi 2. Cette dernière effectue donc un renvoi à 90° des rayons.Therefore, the rays incident on the return face 2 are perpendicular to the rays reflected by the deflection face 2. The latter thus makes a reference to 90 ° rays.

La face de sortie 3 assure une collimation, c'est-à-dire une génération d'un faisceau de rayons parallèles, suivant la direction de l'axe optique O du module, dans le plan horizontal.The exit face 3 provides a collimation, that is to say a generation of a beam of parallel rays, in the direction of the optical axis O of the module, in the horizontal plane.

La figure 6 montre le principe optique du concept de base : la totalité des rayons émis par la LED 8 entre dans le guide pour y être guidée selon un chemin comprenant un angle droit, puis pour y être collimatée suivant la direction de l'axe optique O.The figure 6 shows the optical principle of the basic concept: all of the rays emitted by the LED 8 enter the guide to be guided along a path comprising a right angle, then to be collimated in the direction of the optical axis O.

Avec ce renvoi à 90°, le module a l'avantage de présenter un encombrement réduit dans sa dimension b selon la direction X.With this reference at 90 °, the module has the advantage of having a small footprint in its dimension b in the direction X.

Il est à noter que la face de renvoi 2 est liée optiquement à la face de sortie 3 et à la distribution désirée des rayons en sortie. En particulier, puisque la face de sortie 3 a une fonction plus esthétique qu'optique, et ne sert qu'à collimater le faisceau, la face de renvoi 2 a un grand rôle à jouer dans le principe optique du module, et doit orienter convenablement les rayons au sein du guide, de manière à compenser le manque d'influence optique de la face de sortie 3 de par sa forme galbée.It should be noted that the return face 2 is optically linked to the outlet face 3 and to the desired distribution of the output rays. In particular, since the exit face 3 has a function that is more aesthetic than optical, and only serves to collimate the beam, the return face 2 has a large role to play in the optical principle of the module, and must orient properly. the rays within the guide, so as to compensate for the lack of optical influence of the exit face 3 by its curved shape.

Le module tel que décrit pourrait être retourné horizontalement, de manière à ce que la LED 8 soit configurée pour tirer selon l'axe Z et dans le sens -Z. Dans ce cas, les rayons seront orientés vers le bas du module, verticalement, et non plus vers le haut du module. Le fonctionnement du module reste cependant identique, avec le même principe optique.The module as described could be flipped horizontally, so that the LED 8 is configured to shoot along the Z axis and in the -Z direction. In this case, the spokes will be oriented towards the bottom of the module, vertically, and no longer towards the top of the module. The operation of the module remains identical, however, with the same optical principle.

Les faisceaux lumineux obtenus avec le dispositif d'éclairage selon l'invention comporte une zone de coupure, c'est-à-dire une frontière entre une zone claire et une zone obscure pour éviter les éblouissements de conducteurs ou de personnes venant en sens inverse du véhicule considéré. Une telle coupure est indispensable dans des faisceaux lumineux destinés à assurer des fonctions telles que : feux de croisement, feux antibrouillard, feu additionnel autoroute, feu additionnel virage, etc.The light beams obtained with the lighting device according to the invention comprises a cutoff zone, that is to say a boundary between a light area and a dark area to avoid dazzling drivers or people coming in the opposite direction the vehicle in question. Such a cut is essential in light beams intended to ensure functions such as: dipped beam, fog lights, additional highway fire, additional light bend, etc.

Une coupure peut être réalisée en disposant la source lumineuse 8 de telle manière que le foyer F de la parabole constituant la face de renvoi 2 soit situé sur le bord arrière 9 de la source 8 au lieu d'être situé au centre C de cette source 8. La LED 8 est donc concrètement décalée d'une distance d égale à la moitié de sa largeur selon la direction X.A break can be achieved by arranging the light source 8 so that the focus F of the dish constituting the return face 2 is located on the rear edge 9 of the source 8 instead of being located in the center C of this source 8. The LED 8 is therefore concretely offset by a distance d equal to half of its width in the direction X.

Avec une telle disposition, comme illustré en figure 5, un rayon lumineux i1 provenant du bord arrière 9 de la source lumineuse 8 et donc du foyer F, est simplement réfracté par la face d'entrée 1, puis réfléchi perpendiculairement suivant un rayon r1 en direction de la face de sortie 3. Dans l'exemple considéré, le rayon r1 est sensiblement horizontal. Il restera dans un plan horizontal à la sortie du dispositif.With such a provision, as illustrated in figure 5 a light ray i1 coming from the rear edge 9 of the light source 8 and hence from the focal point F is simply refracted by the input face 1, then reflected perpendicularly along a ray r1 towards the exit face 3. In the example considered, the radius r1 is substantially horizontal. It will remain in a horizontal plane at the exit of the device.

Tous les autres rayons lumineux émis par la source 8 proviendront de points situés en avant du bord arrière 9 de la source 8, comme le rayon i2. Ce rayon i2 est réfracté puis réfléchi suivant un rayon r2 descendant.All the other light rays emitted by the source 8 will come from points situated in front of the rear edge 9 of the source 8, like the radius i2. This radius i2 is refracted and then reflected along a descending radius r2.

Un autre rayon i3 provenant du bord arrière 9 sera réfléchi suivant un rayon r3 horizontal tandis qu'un autre rayon i4 provenant d'un point situé au niveau du bord avant 10 sera réfléchi selon un rayon r4 dirigé vers le bas.Another radius i3 from the rear edge 9 will be reflected along a horizontal radius r3 while another radius i4 from a point at the leading edge 10 will be reflected at a downwardly directed radius r4.

Le faisceau obtenu présentera donc une ligne de coupure horizontale avec une zone éclairée au-dessous de cette ligne de coupure et une zone obscure au-dessus.The resulting beam will therefore have a horizontal cutoff line with a lighted area below this cutoff line and a darkened area above it.

Dans le cas où le module serait retourné horizontalement avec une LED tirant des rayons dans le sens Z-, la coupure horizontale pourra être réalisée en disposant logiquement la LED de telle manière que le foyer de la parabole constituant la face de renvoi soit situé sur le bord avant de la source au lieu d'être situé sur le bord arrière.In the case where the module is flipped horizontally with an LED drawing radii in the Z- direction, the horizontal cut can be achieved by logically disposing the LED in such a way that the focus of the parabola constituting the return face is located on the front edge of the source instead of being on the back edge.

Afin d'obtenir certains effets d'éclairage, la LED 8 peut être mobile en rotation autour de l'axe Y avec un angle compris entre +/-45° et/ou autour de l'axe Z avec un angle compris entre +/-15°. Ces libertés de mouvement de la LED 8 permettent notamment de générer un faisceau lumineux avec une coupure en partie oblique vers la gauche ou vers la droite, de manière à éclairer les panneaux de signalisation ainsi que les trottoirs ou bas-côtés sur la partie gauche de la chaussée (trafic à gauche) ou sur la partie droite de la chaussée (trafic à droite).In order to obtain certain lighting effects, the LED 8 can be rotatable around the Y axis at an angle of between +/- 45 ° and / or around the Z axis with an angle between +/- -15 °. These freedom of movement of the LED 8 allow in particular to generate a light beam with a cut partly oblique to the left or to the right, so as to illuminate the traffic signs and the sidewalks or aisles on the left side of the road (traffic on the left) or on the right side of the road (traffic on the right).

Les figures 7 et 8 montrent un mode de réalisation où le dispositif d'éclairage selon l'invention est composé de quatre modules 11,12,13,14.The Figures 7 and 8 show an embodiment where the lighting device according to the invention is composed of four modules 11,12,13,14.

Ces quatre modules 11,12,13,14 sont alignés les uns à côté des autres, et présentent une unique surface de sortie 3 continue, et donc commune aux modules 11,12,13,14. Cette surface de sortie commune 3 intègre donc les quatre faces de sortie 3 des quatre modules 11,12,13,14.These four modules 11,12,13,14 are aligned next to each other, and have a single continuous output surface 3, and therefore common to the modules 11,12,13,14. This common output surface 3 thus integrates the four output faces 3 of the four modules 11, 12, 13, 14.

Cette surface de sortie 3 présente une forme galbée, esthétique. Elle sera visible depuis l'extérieur à travers une glace 15 d'un projecteur. De préférence, cette surface de sortie 3 suit la courbure de la glace 15 du projecteur.This outlet surface 3 has a curved shape, aesthetic. It will be visible from the outside through a mirror 15 of a projector. Preferably, this exit surface 3 follows the curvature of the lens 15 of the projector.

Chacun des module 11,12,13,14 remplit une fonction d'éclairage bien précise. Ainsi, les modules 11,12,13,14 ne sont pas identiques entre eux. Ils présentent des variations dans les formes des faces, ainsi que dans les dimensions, notamment selon la direction X.Each of the modules 11, 12, 13, 14 fulfills a very precise lighting function. Thus, the modules 11, 12, 13, 14 are not identical to each other. They have variations in the shapes of the faces, as well as in the dimensions, especially in the X direction.

En l'espèce, les modules d'extrémité 11, 14 présentent une dimension selon la direction X nettement supérieure à celle des modules centraux 12,13. Par conséquent, la position des sources lumineuses 8 sera aussi différente en fonction des modules 11,12,13,14 auxquels elles sont associées. Dans d'autres termes, la distance entre la source lumineuse 8 et la surface de sortie commune 3 du dispositif varie selon les fonctions d'éclairage des modules 11,12,13,14.In this case, the end modules 11, 14 have a dimension in the X direction much greater than that of the central modules 12,13. Therefore, the position of the light sources 8 will also be different depending on the modules 11,12,13,14 with which they are associated. In other words, the distance between the light source 8 and the common output surface 3 of the device varies according to the lighting functions of the modules 11, 12, 13, 14.

Ce type de dispositif d'éclairage à quatre module 11,12,13,14 permet par exemple de générer un éclairage à coupure oblique vers la droite, comme illustré par le réseau de courbes isolux en figure 9. Les courbes isolux sont obtenues sur un écran placé à 25 mètres du dispositif d'éclairage, perpendiculairement à l'axe optique général du dispositif dont l'intersection avec l'écran correspond à la graduation 0° selon l'axe des abscisses. L'axe vertical passant par 0° correspond à l'intersection de l'écran et du plan vertical passant par l'axe optique général.This type of four-module lighting device 11, 12, 13, 14 makes it possible, for example, to generate an oblique cut-off light towards the right, as illustrated by the network of isolux curves in figure 9 . The isolux curves are obtained on a screen placed at 25 meters from the lighting device, perpendicular to the general optical axis of the device whose intersection with the screen corresponds to the 0 ° graduation along the abscissa axis. The vertical axis passing through 0 ° corresponds to the intersection of the screen and the vertical plane passing through the general optical axis.

Ces courbes permettent d'illustrer la distribution de l'éclairement. On remarque que le faisceau se situe sous l'horizontale, et qu'il comporte une coupure oblique vers la droite d'un angle α de 15° par rapport à l'horizontale.These curves make it possible to illustrate the distribution of the illumination. It is noted that the beam is below the horizontal, and that it comprises an oblique cut to the right by an angle α of 15 ° relative to the horizontal.

Dans un exemple particulier, le dispositif d'éclairage à quatre modules 11,12,13,14 pourra présenter les dimensions suivantes :

  • dimension b' selon la direction X : 80mm
  • dimension c' selon la direction Y : 160mm
  • dimension a' selon la direction Z : 31 mm.
In a particular example, the four-module lighting device 11, 12, 13, 14 may have the following dimensions:
  • dimension b 'according to the direction X: 80mm
  • dimension c 'according to the direction Y: 160mm
  • dimension a 'in the direction Z: 31 mm.

La dimension e' de la surface de sortie commune 3 selon la direction Z est de l'ordre de 20mm.The dimension e 'of the common exit surface 3 in the Z direction is of the order of 20 mm.

Les faces latérales 4 parallèles verticales des modules 11,12,13,14 constituent des parois intermédiaires entre les modules 11,12,13,14. Deux modules adjacents peuvent présenter, au niveau de leur surface en commun, soit deux parois latérales 4 accolées correspondant chacune à un module, soit une unique paroi latérale 4 commune aux deux modules. Ces parois latérales 4 peuvent être aluminées, puisqu'elles sont destinées à empêcher les faisceaux produits par une source lumineuse 8 placée au niveau d'un guide d'un module, de passer à travers le guide du module adjacent.The vertical parallel side faces 4 of the modules 11, 12, 13, 14 constitute intermediate walls between the modules 11, 12, 13, 14. Two adjacent modules may have, at their surface in common, two side walls 4 contiguous each corresponding to a module, or a single side wall 4 common to both modules. These side walls 4 may be aluminized, since they are intended to prevent the beams produced by a light source 8 placed at a guide of a module, to pass through the guide of the adjacent module.

Un autre exemple d'imbrication de quatre modules 11,12,13,14 formant un dispositif d'éclairage est présenté en figure 10, avec notamment une représentation des parois latérales 4. Ces dernières ont des formes parfois complexe, avec des décrochements, de façon à s'emboîter les unes dans les autres.Another example of nesting of four modules 11,12,13,14 forming a lighting device is presented in figure 10 , in particular with a representation of the side walls 4. The latter have sometimes complex shapes, with recesses, so as to fit into each other.

Ce dispositif d'éclairage est intégré dans un projecteur comprenant :

  • un boîtier 18 destiné à être fixé sur un véhicule,
  • une glace 15 de fermeture dudit boîtier, positionnée devant la surface de sortie commune 3 du dispositif d'éclairage.
This lighting device is integrated in a projector comprising:
  • a housing 18 intended to be fixed on a vehicle,
  • a closure window 15 of said housing, positioned in front of the common exit surface 3 of the lighting device.

Le dispositif d'éclairage étant logé à l'intérieur de l'espace délimité par le boîtier 18 et la glace 15 de fermeture, le dispositif d'éclairage étant agencé de manière à ce que les rayons sortant de ladite surface de sortie commune 3 atteignent ladite glace 15 de fermeture.The lighting device being housed inside the space delimited by the housing 18 and the closing window 15, the lighting device being arranged in such a way that the rays issuing from the said common exit surface 3 reach said closure glass.

Les LED 8 du dispositif d'éclairage sont positionnées sur un substrat 17 qui comprend des emplacements précis à cet effet. Un dissipateur thermique 16 est classiquement relié à ce substrat 17.The LEDs 8 of the lighting device are positioned on a substrate 17 which includes precise locations for this purpose. A heat sink 16 is conventionally connected to this substrate 17.

Bien que le dispositif lumineux conforme à l'invention ait été décrit dans le cadre d'un faisceau à coupe oblique, ce dispositif peut également être adapté à d'autres types de faisceaux avec coupure, nécessitant une même optique et différentes positions de sources lumineuses pour générer des faisceaux lumineux respectifs compatibles avec différents types de règlementations. D'autre part, le dispositif lumineux selon l'invention peut être un dispositif d'éclairage et/ou de signalisation.Although the light device according to the invention has been described in the context of an oblique cut beam, this device can also be adapted to other types of cut-off beams, requiring the same optics and different positions of light sources. to generate respective light beams compatible with different types of regulations. On the other hand, the light device according to the invention may be a lighting and / or signaling device.

Les configurations montrées aux figures citées ne sont que des exemples possibles, nullement limitatifs, de l'invention qui englobe au contraire les variantes de formes et de conceptions à la portée de l'homme de l'art.The configurations shown in the figures cited are only possible examples, in no way limiting, of the invention which, on the contrary, encompasses variants of shapes and designs within the reach of those skilled in the art.

Claims (16)

Dispositif d'éclairage, notamment pour véhicule automobile, comprenant au moins un module présentant un axe optique O, chaque module comportant : - une source lumineuse 8 configurée pour émettre un faisceau lumineux selon une direction globale d'allure sensiblement sécante à l'axe optique O, - un guide d'orientation de la lumière apte à diriger le faisceau lumineux émis par ladite source lumineuse 8 de façon sensiblement parallèle audit axe optique O en sortie dudit guide et apte à former une coupure dans ledit faisceau, caractérisé en ce qu'il comprend une unique portion de sortie dudit faisceau lumineux dont la surface de sortie 3 est continue en courbure, et qui est commune à tous les modules.Lighting device, especially for a motor vehicle, comprising at least one module having an optical axis O, each module comprising: a light source 8 configured to emit a light beam in a global direction of appearance substantially intersecting with the optical axis O, a light orientation guide capable of directing the light beam emitted by said light source 8 substantially parallel to said optical axis O at the output of said guide and capable of forming a cut-off in said beam, characterized in that it comprises a single output portion of said light beam whose exit surface 3 is continuous in curvature, and which is common to all the modules. Dispositif d'éclairage selon la revendication 1, caractérisé en ce que ledit guide comprend trois dioptres, à savoir : - une face d'entrée 1 associée à la source lumineuse 8 ; - une face de sortie 3 confondue avec la surface de sortie commune 3 du dispositif d'éclairage ; - une face de renvoi 2 pour réfléchir lesdits rayons lumineux issus de la face d'entrée 1 vers la face de sortie 3. Lighting device according to claim 1, characterized in that said guide comprises three diopters, namely: an input face 1 associated with the light source 8; an output face 3 coincides with the common output surface 3 of the lighting device; a return face 2 for reflecting said light rays coming from the input face 1 towards the exit face 3. Dispositif d'éclairage selon la revendication précédente, caractérisé en ce que la face d'entrée 1 du guide est agencée de sorte à réfracter le faisceau lumineux en provenance de la source lumineuse 8 en direction de la face de renvoi 2.Lighting device according to the preceding claim, characterized in that the input face 1 of the guide is arranged to refract the light beam from the light source 8 towards the return face 2. Dispositif d'éclairage selon la revendication précédente, caractérisé en ce que la face de renvoi 2 du guide est agencée pour collecter le faisceau lumineux réfracté en provenance de la face d'entrée 1 et pour réfléchir ce faisceau lumineux vers la face de sortie 3 du guide.Lighting device according to the preceding claim, characterized in that the return face 2 of the guide is arranged to collect the refracted light beam from the input face 1 and to reflect this light beam towards the exit face 3 of the guide. Dispositif d'éclairage selon la revendication précédente, caractérisé en ce que la face de renvoi 2 présente un foyer F et en ce que la source lumineuse 8 est positionnée dans un voisinage de ce foyer F de sorte que le faisceau lumineux réfléchi par la face de renvoi 2 vers la face de sortie 3 présente une coupure.Lighting device according to the preceding claim, characterized in that the return face 2 has a focus F and in that the light source 8 is positioned in a vicinity of this focus F so that the light beam reflected by the face of 2 to the exit face 3 has a cut. Dispositif d'éclairage selon l'une des revendications 2 à 5, caractérisé en ce que la face de renvoi 2 présente un profil globalement parabolique admettant un foyer F situé au voisinage de la source lumineuse 8.Lighting device according to one of claims 2 to 5, characterized in that the return face 2 has a generally parabolic profile admitting a focal point F located in the vicinity of the light source 8. Dispositif d'éclairage selon l'une des revendications 5 ou 6, caractérisé en ce que la source lumineuse 8 présente un centre de symétrie décentré par rapport au foyer F de la face de renvoi 2 avec un décalage d selon la direction de l'axe optique O.Lighting device according to one of claims 5 or 6, characterized in that the light source 8 has a center of symmetry eccentric with respect to the focus F of the return face 2 with an offset d in the direction of the axis optical O. Dispositif d'éclairage selon l'une des revendications 5 à 7, caractérisé en ce que la source lumineuse 8 présente une surface d'émission dudit faisceau pourvue d'un bord latéral 9,10, et en ce que la source lumineuse 8 est disposée de sorte que le foyer F de la face de renvoi 2 soit positionné sur ce bord 9,10.Lighting device according to one of claims 5 to 7, characterized in that the light source 8 has an emission surface of said beam provided with a side edge 9, 10, and in that the light source 8 is arranged so that the focus F of the return face 2 is positioned on this edge 9,10. Dispositif d'éclairage selon la revendication précédente, caractérisé en ce que la source lumineuse 8 est positionnée de sorte que ledit bord 9,10 soit sensiblement perpendiculaire à l'axe optique O.Lighting device according to the preceding claim, characterized in that the light source 8 is positioned so that said edge 9,10 is substantially perpendicular to the optical axis O. Dispositif d'éclairage selon la revendication 8, caractérisé en ce que la source lumineuse 8 est positionnée de sorte que le bord 9,10 fasse un angle avec l'axe optique O sensiblement égal à 15°.Lighting device according to claim 8, characterized in that the light source 8 is positioned so that the edge 9,10 makes an angle with the optical axis O substantially equal to 15 °. Dispositif d'éclairage selon l'une des revendications 2 à 10, caractérisé en ce que la face de sortie 3 du guide est agencée pour projeter le faisceau lumineux réfléchi par la face de renvoi 2 à l'infini.Lighting device according to one of claims 2 to 10, characterized in that the outlet face 3 of the guide is arranged to project the light beam reflected by the return face 2 to infinity. Dispositif d'éclairage selon l'une des revendications précédentes, caractérisé en ce qu'il comprend une pluralité de modules 11,12,13,14, les guides ayant des parois latérales 4 pour empêcher que des rayons issus d'une source lumineuse 8 associée à un guide puisse passer dans le guide adjacent.Lighting device according to one of the preceding claims, characterized in that it comprises a plurality of modules 11, 12, 13, 14, the guides having side walls 4 to prevent rays coming from a light source 8 associated with a guide can pass in the adjacent guide. Dispositif d'éclairage selon la revendication précédente, caractérisé en ce qu'il comporte au moins un module d'un dispositif selon la revendication 9 et un module d'un dispositif selon la revendication 10.Lighting device according to the preceding claim, characterized in that it comprises at least one module of a device according to claim 9 and a module of a device according to claim 10. Projecteur lumineux pour véhicule automobile comprenant au moins un dispositif d'éclairage conforme à l'une quelconque des revendications précédentes.Motor vehicle light projector comprising at least one lighting device according to any one of the preceding claims. Projecteur lumineux selon la revendication précédente, caractérisé en ce que les rayons émis en sortie du dispositif d'éclairage forment une portion ou l'intégralité d'un faisceau règlementaire de type éclairage route ou de type éclairage de croisement.Light projector according to the preceding claim, characterized in that the rays emitted at the output of the lighting device form a portion or the entirety of a regulatory beam of road lighting type or crossing light type. Véhicule équipé d'au moins un projecteur lumineux tel que décrit dans les revendications 14 ou 15.Vehicle equipped with at least one luminous headlamp as described in claims 14 or 15.
EP16181308.4A 2015-07-28 2016-07-26 Lighting module for motor vehicle headlight Active EP3124855B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3079598A1 (en) * 2018-03-30 2019-10-04 Valeo Vision LIGHTING MODULE WITH MULTISOURCE OPTICAL ELEMENT WITH SMOOTH OUTPUT

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10234094B2 (en) * 2016-09-13 2019-03-19 Valeo North America, Inc. Lighting device for producing a supplemental beam
FR3065088B1 (en) * 2017-04-11 2022-12-02 Valeo Vision OPTICAL ASSEMBLY COMPRISING REFLECTORS PROVIDED WITH DISCONTINUITIES
FR3068658B1 (en) * 2017-07-06 2021-04-16 Valeo Vision MOTOR VEHICLE LIGHTING DEVICE
FR3073925B1 (en) * 2017-11-20 2020-11-13 Valeo Vision OPTICAL ELEMENT FOR AUTOMOTIVE VEHICLE OPTICAL MODULE
KR102435180B1 (en) * 2017-11-29 2022-08-23 에스엘 주식회사 Lamp for vehicle
US10253940B1 (en) * 2018-03-14 2019-04-09 T.Y.C. Brother Industrial Co., Ltd. Vehicle light assembly
EP3857114B1 (en) * 2018-09-28 2022-12-14 Lumileds LLC Multi-focal collimating lens and bi-function headlight assembly
KR20200143576A (en) * 2019-06-13 2020-12-24 현대자동차주식회사 Slim type lamp apparatus for vehicle
CN113686774A (en) * 2021-10-26 2021-11-23 三一重型装备有限公司 Corrosion testing device and downhole operation equipment
CZ202393A3 (en) 2023-03-07 2024-09-25 PO LIGHTING CZECH s.r.o. A vehicle lighting device, particularly a front lighting device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1564481A1 (en) * 2004-02-13 2005-08-17 Valeo Vision Lighting module for vehicle headlamp, reflector for such a modul and headlamp comprising this modul
EP1715245A1 (en) * 2005-04-21 2006-10-25 Valeo Vision Lighting assembly for véhicles with a light distribution having a cutoff
EP2045515A1 (en) 2007-10-04 2009-04-08 Valeo Vision Lighting or signalling device for an automobile
US20140104864A1 (en) * 2012-10-12 2014-04-17 Automotive Lighting Reutlingen Gmbh Light module

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3734573A (en) * 1970-10-16 1973-05-22 Bendix Westinghouse Air Brake Adaptive control for fluid pressure braking systems
KR101289604B1 (en) * 2005-03-04 2013-07-24 오스람 실바니아 인코포레이티드 Led headlamp system
US7677777B2 (en) * 2007-02-21 2010-03-16 Magna International, Inc. LED apparatus for world homologation
JP5516854B2 (en) * 2009-10-08 2014-06-11 スタンレー電気株式会社 Vehicle lighting
CN202253366U (en) * 2011-08-20 2012-05-30 浙江百康科技有限公司 Lens for LED car lamps
FR2985373B1 (en) * 2012-01-04 2014-01-24 Commissariat Energie Atomique SEMICONDUCTOR STRUCTURE, DEVICE COMPRISING SUCH A STRUCTURE AND METHOD FOR PRODUCING A SEMICONDUCTOR STRUCTURE
TWI451047B (en) * 2012-03-09 2014-09-01 Coretronic Corp Light source module
FR2993633B1 (en) * 2012-07-23 2018-12-07 Valeo Vision LIGHT GUIDE FOR A DEVICE FOR LIGHTING AND / OR SIGNALING A MOTOR VEHICLE
DE102012220457B4 (en) * 2012-11-09 2023-05-25 Plastic Omnium Lighting Systems Gmbh LIGHTING EQUIPMENT
CN203431719U (en) * 2013-09-03 2014-02-12 成都欧盛光电科技有限公司 Motorcycle high-beam lamp lens and motorcycle low-beam lamp lens
JP6159631B2 (en) * 2013-09-26 2017-07-05 株式会社小糸製作所 Vehicle lighting

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1564481A1 (en) * 2004-02-13 2005-08-17 Valeo Vision Lighting module for vehicle headlamp, reflector for such a modul and headlamp comprising this modul
EP1715245A1 (en) * 2005-04-21 2006-10-25 Valeo Vision Lighting assembly for véhicles with a light distribution having a cutoff
EP2045515A1 (en) 2007-10-04 2009-04-08 Valeo Vision Lighting or signalling device for an automobile
US20140104864A1 (en) * 2012-10-12 2014-04-17 Automotive Lighting Reutlingen Gmbh Light module

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3079598A1 (en) * 2018-03-30 2019-10-04 Valeo Vision LIGHTING MODULE WITH MULTISOURCE OPTICAL ELEMENT WITH SMOOTH OUTPUT

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CN106402768A (en) 2017-02-15
CN106402768B (en) 2021-08-06
EP3124855B1 (en) 2018-08-15
FR3039629A1 (en) 2017-02-03
KR102664536B1 (en) 2024-05-09
US20170030542A1 (en) 2017-02-02
US10920947B2 (en) 2021-02-16
KR20170013845A (en) 2017-02-07
FR3039629B1 (en) 2020-08-14

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