EP2957821A1 - Rotary lighting and/or signalling module - Google Patents

Rotary lighting and/or signalling module Download PDF

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Publication number
EP2957821A1
EP2957821A1 EP15166197.2A EP15166197A EP2957821A1 EP 2957821 A1 EP2957821 A1 EP 2957821A1 EP 15166197 A EP15166197 A EP 15166197A EP 2957821 A1 EP2957821 A1 EP 2957821A1
Authority
EP
European Patent Office
Prior art keywords
optical device
frame
screens
screen
additional optical
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
EP15166197.2A
Other languages
German (de)
French (fr)
Other versions
EP2957821B1 (en
Inventor
Antoine De Lamberterie
Christophe Dubosc
Ziyed Thabet
Stephan Sommerschuh
Benoît Reiss
Brahim Elhachir
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
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Valeo Vision SAS filed Critical Valeo Vision SAS
Publication of EP2957821A1 publication Critical patent/EP2957821A1/en
Application granted granted Critical
Publication of EP2957821B1 publication Critical patent/EP2957821B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • 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
    • F21S43/245—Light guides characterised by the emission area emitting light from one or more of its major surfaces
    • 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
    • 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
    • F21S41/63—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on refractors, filters or transparent cover plates
    • F21S41/635—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on refractors, filters or transparent cover plates by moving refractors, filters or transparent cover plates
    • 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
    • F21S41/68—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on screens
    • F21S41/683—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on screens by moving screens
    • F21S41/695—Screens rotating around a vertical 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
    • 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
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
    • 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
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/14—Adjustable mountings
    • F21V21/30—Pivoted housings or frames
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
    • F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles

Definitions

  • the invention relates to the field of lighting and / or signaling, especially for motor vehicles. More particularly, the invention relates to a lighting and / or signaling module for a motor vehicle, and a projector comprising such a module.
  • the document FR 2 817 212 describes a motor vehicle headlamp with a directional lighting function better known by the acronym DBL (Dynamic Bending Light).
  • the projector includes an optical system whose lighting direction is rotated, an output shaft coupled to the optical system for driving, an engine, and a rotational transmission mechanism coupled to the engine so that it is rotated. transmits the rotation of the motor to the output shaft, wherein the motor, the output shaft and the rotation transmission mechanism are placed in a housing body, and a rotating shaft of the motor is supported by the housing body .
  • a support shaft of an intermediate gear placed between the motor and the output shaft is directly supported by the housing body.
  • the document EP 1 285 812 discloses a projector having a movable assembly provided with a reflector and a light source, and a fixed assembly at least partially bordering the moving assembly which is rotatable relative to the fixed assembly about a first vertical axis for azimuth adjustment, and around a horizontal transverse axis for on-site adjustment. Such an arrangement is intended to keep the running games constant between the fixed parts and the moving parts.
  • the document EP 2 423 047 describes a headlamp of a motor vehicle designed to combine the night lighting function with the daylighting function known by the acronym DRL (Daytime Running Light).
  • the night lighting is obtained by a fixed lighting module, while the DRL lighting is achieved by means of a network of light-emitting diodes that can be retracted into a position inside the projector.
  • the invention aims to provide a module and a lighting projector and / or signaling capable of providing at least two lighting and / or signaling functions and simple and compact construction.
  • the subject of the invention is a lighting and / or signaling module, in particular for a motor vehicle, comprising a support for means for optical deflection of light rays emitted by a first fixed light source, in which a chassis comprises two screens and a base connecting them transversely to one of their end, said frame being rotatably mounted about an axis under the effect of an actuator, so that said two screens are able to take alternately a position active upstream of the support, in particular on the path of the light rays deflected by said optical deflection means, and wherein the active position screen is in line with a second light source, also fixed. At least one additional optical device extends between the screens.
  • the invention also relates to a lighting and / or signaling projector for a motor vehicle, comprising a housing and at least one lighting and / or signaling module, in which the lighting and / or signaling module conforms to to what has been described previously.
  • the projector can advantageously comprise three lighting modules and / or signaling.
  • a lighting and / or signaling module 10 is fixed in a housing (not shown) of a projector, and it comprises a support 16 having a reflecting face and an aspect face, as well as a frame 18 which has two light-transparent screens and which is mounted around the support 16 so that each of the screens of the frame can be arranged facing one of the faces of the support.
  • This frame may be fixed relative to the module, or may be rotatably mounted, and this in solidarity with rotation of the support or independently of the support, so that the frame can rotate around the support, while that it remains fixed or rotates elsewhere.
  • An embodiment will be described below, in which the support is rotatably mounted and the chassis rotates in solidarity with it, but it will be understood that the variants mentioned at the beginning of this paragraph can be easily implemented without depart from the context of the invention.
  • the support is rotatably mounted and the module comprises for this purpose a first actuator 12 integral with the housing of the projector in which the module is housed, and a first axis 14 rotated by the first actuator 12 and secured to the support.
  • the first actuator 12 comprises an electric motor, driven by control means (not visible on the Figures 1 and 2 ) and able to transmit a command instruction to said engine, and means for transmitting in rotation between the engine and the first axis.
  • the first axis 14 supports the support 16 in its lower part, and the first axis 14 is substantially vertical, but it could have another orientation.
  • the support 16 of the module 10 comprises optical deflection means on a first reflecting face 20, which act as a reflector capable of providing a lighting function and / or regulatory signaling. This function is fulfilled by the cooperation of the reflector 20 with a first light source 22.
  • the first light source 22 is fixed relative to the actuator.
  • a lighting and / or signaling function complies with the regulations in force.
  • This lighting function and / or regulatory signaling may be a day signaling function, commonly referred to as the DRL (the English acronym “Daytime Running Light”), or a lighting function of crossing, commonly referred to as “code”, or a lighting function commonly referred to as “road”.
  • the first reflecting surface 20 thus ensures the formation of a lighting beam and / or regulatory signaling directed towards the front of the vehicle.
  • the first light source 22 is a semiconductor source, and preferably of the electroluminescence diode (LED) type, and is substantially aligned with the first axis 14.
  • substantially aligned means that the distance between the geometric center of the light-emitting diode 22 and the axis of rotation of the support 16 is not greater than the dimensions of the light-emitting diode 22.
  • the latter can be fixed and positioned on a printed circuit board 24, itself fixed in the case (not shown) of the projector.
  • the support 16 of the module 10 also comprises a second face 26 opposite to the first face forming the reflector 20 and providing a second function.
  • This second function can be either a regulation day signaling function, a crossover lighting function and / or regulatory route, or an aspect function.
  • the module 10 may comprise an upper pivot 36 collinear with the first axis 14 via the support 16 to increase the accuracy of the relative positioning of the first light source 22 with respect to the reflector 20.
  • the frame 18 is made of a material transparent to light and has two screens 28 and 30 which extend substantially vertically in the module, parallel to each other, and among which at least one plays the role of light guide.
  • Each screen has a peripheral edge 38 and an upper edge 40.
  • the screens are connected at their upper end by transverse connecting walls 32 which are connected perpendicularly to the lateral ends of the upper edge of the screen forming an upper connecting base with the support, so that the frame is rotated integrally of the support when it is rotated by the actuator.
  • the screens preferably take the form of a sheet light guide, with a central portion of the sheet having a curved profile whose curvature substantially follows the direction of rotation of the frame.
  • the chassis is thus arranged in the module so that it surrounds the support, with the first screen 28 or the second screen 30 which is adapted according to the position of the chassis to take the active position upstream of the support.
  • upstream the position in which the screen is disposed between the support and the front of the vehicle, to which the lighting and / or signaling functions are directed.
  • the central portion of the web of each screen may carry decoupling means, including prisms, for the deviation of the rays reflected by the reflector and through the screen.
  • the two screens have different optical surfaces, one having for example a neutral surface, able not to hinder the diffusion of the light rays emitted by the first source 22 and deflected by the reflector, while the other may comprise optical devices whose arrangement may form one or more representative patterns, for example of a mark that is to be highlighted during a signaling function.
  • Other structural differences may appear, such as the fact that one of the screens of the frame has elements of decoupling of the light on all or part of its surface for the appearance function, while the other screen does not does not present such an aspect to remain neutral.
  • a second light source 34 fixed and positioned on a printed circuit board, advantageously also the card carrying the first light source 22.
  • the second light source is able to illuminate the screen of the frame which is in the active position upstream of the support. It is expected that the second light source is disposed at a predetermined distance from the first light source so that the screen of the frame, when in the active position upstream of the support, is arranged in line with the second source of light. light and can be illuminated by it.
  • the second light source 34 is fixed relative to the first light source 22 and remains fixed while the support and / or chassis rotates. It may consist of one or more semiconductor sources, for example light-emitting diodes (LEDs). In the illustrated embodiments, two light emitting diodes are provided to form the second light source.
  • LEDs light-emitting diodes
  • the first screen or the second screen of the frame 18 found in this active position upstream of the support is arranged at the right of the second light source 34 so as to ensure a regulatory signaling function if the second source of light is on.
  • the input face of the optical guide, made by one or other of the screens, for the light rays emitted by this second light source is formed by the upper edge of the screen while the exit faces are arranged in the peripheral edge.
  • a lighting and / or signaling function is thus realized, distinct from that achieved by the reflection of the light rays of the first light source.
  • the peripheral portion of the screen may have a prism oriented in such or such way to proceed to return the light from the second source 34 towards the front of the vehicle to perform a signaling function and / or back to participate to the appearance function.
  • the second light source 34 can be turned on in addition to the first light source 22 so that the peripheral portion 38 of the first screen 28, facing the reflector, emits light. This makes it possible to use a first screen of the frame 18 in addition to the reflector 20.
  • a preferred use of the two light sources is to keep the second source constantly lit and to increase the intensity of the second light source if one wish to perform a signaling function, or to turn on the first light source if it is desired to perform a lighting function.
  • This additional optical device 70 here takes the form of an additional optical device 72, integral with the screens, whose input face is disposed in the horizontal continuity of the upper edge 40 of the screens, and whose output face 74 takes place between the two screens.
  • the additional guide 72 is adapted to conduct the light emitted by the second light source 34 and penetrating through the input face, from this input face to the output face 74 by successive internal reflections.
  • the additional guide is curved.
  • a first curvature is such that the projection of the additional guide in the plane perpendicular to the axis of rotation takes the form of a circular arc centered on said axis of rotation.
  • This first curvature of the structural elements has a double interest: a first mechanical interest, in that it allows a radial clearance of the structural elements to allow the relative rotation of the support relative to the frame, and a second aesthetic interest in that it allows to register each of the structural elements in the continuity of the screens of the frame, curves also.
  • the exit face of the additional guide is inclined relative to the horizontal, so that it is not completely included in the plane of rotation of the frame.
  • FIG. 1 discloses a module in which the output face of the additional optical device has a continuous shape, to create a substantially regular rising profile.
  • the figure 2 discloses a module in which the output face has, from one edge of a screen to the edge of the other screen, successive successive slopes.
  • the figure 3 discloses a module in which the output face of the additional optical device has a stair step shape.
  • the module has two additional optical devices.
  • a first additional device 70 extends between a first edge of the first screen and a first edge opposite the second screen
  • a second additional device 71 extends between a second edge of the first screen and a second edge opposite the second screen.
  • second screen This is particularly interesting when the module is rotatable over more than half a turn, since this provides continuity for the observer in front of the vehicle. For a complete turn, the observer can see the following sequence: first screen 28-first additional device 70-second screen 30-second additional device 71-first screen 28.
  • the two additional optical devices arranged in the same module are identical and arranged symmetrically with respect to the axis of rotation of the chassis. In this way, when a first additional optical device has an output face which has, for a given direction of rotation of the frame, a rising profile, the second symmetrical additional guide has an exit face which has, for the same direction of rotation, a rising profile also.
  • the additional optical device may take other forms than an additional optical device, forming a fairing forming part of the continuity of the screens, since its arrangement and its orientation allow to reflect the light output of the projector with a vertical component modified as the horizontal rotation of the frame is actually made.
  • the module is arranged so that when the frame, integrally or not support, is rotatable to move from a position where a first screen is disposed in the active position under the second light source to a position where it is the second screen which is arranged in this active position, it is observed that one or the other additional optical devices, according to the direction of rotation of the frame, passes under the second fixed light source.
  • the figure 4 illustrates the module in a configuration where the second screen 28 of the chassis and the aspect face of the support are in the active position, so that the two diodes here forming the second light source 34 can emit rays able to penetrate the screen and to illuminate the exit faces formed by the peripheral portions 38 of the screen.
  • FIGS. 5 and 6 illustrate intermediate states between this position of the figure 4 and the position shown on the figure 7 , in which the module has been rotated so that it is the reflective face of the support and the first screen which are in the active position.
  • the rays emitted by the second light source impact a part of the output face that is higher and higher.
  • the vertical component of the arrangement of the output face of the additional optical device ensures that the point of impact of the light rays emitted by the second source on the output face of the additional optical device as and when required. its passage in front of the second source moves vertically.
  • the observer can thus have the impression that the module undergoes both a rotation in the horizontal plane and a vertical translation, similar to a rising helical movement.
  • the headlight of a motor vehicle for performing lighting and / or signaling functions, may comprise one or more modules identical to that which has been described, arranged in series in a housing.
  • a series of several modules advantageously three, it will be possible to rotate the frame of each module by actuators that can be controlled independently of each other, to provide greater flexibility in the functions of lighting and / or signaling.

Abstract

L'invention concerne un module d'éclairage et/ou de signalisation notamment pour véhicule automobile, comportant un support (16) de moyens de déviation optique (20) de rayons lumineux émis par une première source de lumière (22) fixe. Un châssis (18) comporte deux écrans (28, 30) et une base (32) les reliant transversalement à l'une de leur extrémité. Le châssis est monté mobile en rotation autour d'un axe sous l'effet d'un actionneur, pour que les deux écrans soient aptes à prendre alternativement une position active en amont du support, notamment sur le trajet des rayons lumineux déviés par lesdits moyens de déviation optique, et dans laquelle l'écran en position active se trouve au droit d'une deuxième source de lumière (34), également fixe. Au moins un dispositif optique additionnel (70) s'étend entre les écrans.The invention relates to a lighting and / or signaling module especially for a motor vehicle, comprising a support (16) optical deflection means (20) of light rays emitted by a first light source (22) fixed. A frame (18) has two screens (28, 30) and a base (32) connecting them transversely at one end. The frame is rotatably mounted about an axis under the effect of an actuator, so that the two screens are able to take alternately an active position upstream of the support, in particular on the path of the light rays deflected by said means optical deflection, and wherein the screen in the active position is in line with a second light source (34), also fixed. At least one additional optical device (70) extends between the screens.

Description

L'invention a trait au domaine de l'éclairage et/ou de la signalisation, notamment pour véhicules automobiles. Plus particulièrement, l'invention a trait à un module d'éclairage et/ou de signalisation pour véhicule automobile, ainsi qu'à un projecteur comprenant un tel module.The invention relates to the field of lighting and / or signaling, especially for motor vehicles. More particularly, the invention relates to a lighting and / or signaling module for a motor vehicle, and a projector comprising such a module.

Le document FR 2 817 212 décrit un projecteur de véhicule automobile avec une fonction d'éclairage directionnel plus connu sous l'acronyme DBL (Dynamic Bending Light). Le projecteur comprend un système optique dont la direction d'éclairage est modifiée par rotation, un arbre de sortie couplé au système optique afin que celui-ci soit entraîné, un moteur, et un mécanisme de transmission de rotation couplé au moteur afin qu'il transmette la rotation du moteur à l'arbre de sortie, dans lequel le moteur, l'arbre de sortie et le mécanisme de transmission de rotation sont placés dans un corps de boîtier, et un arbre rotatif du moteur est supporté par le corps de boîtier. Un arbre de support d'un pignon intermédiaire placé entre le moteur et l'arbre de sortie est directement supporté par le corps de boîtier.The document FR 2 817 212 describes a motor vehicle headlamp with a directional lighting function better known by the acronym DBL (Dynamic Bending Light). The projector includes an optical system whose lighting direction is rotated, an output shaft coupled to the optical system for driving, an engine, and a rotational transmission mechanism coupled to the engine so that it is rotated. transmits the rotation of the motor to the output shaft, wherein the motor, the output shaft and the rotation transmission mechanism are placed in a housing body, and a rotating shaft of the motor is supported by the housing body . A support shaft of an intermediate gear placed between the motor and the output shaft is directly supported by the housing body.

Le document EP 1 285 812 décrit un projecteur comportant un ensemble mobile muni d'un réflecteur et d'une source de lumière, et un ensemble fixe bordant au moins partiellement l'ensemble mobile qui peut tourner, relativement à l'ensemble fixe, autour d'un premier axe vertical pour un réglage en azimut, et autour d'un axe transversal horizontal pour un réglage en site. Une telle disposition a pour but de garder les jeux de fonctionnement constants entre les pièces fixes et les pièces mobiles.The document EP 1 285 812 discloses a projector having a movable assembly provided with a reflector and a light source, and a fixed assembly at least partially bordering the moving assembly which is rotatable relative to the fixed assembly about a first vertical axis for azimuth adjustment, and around a horizontal transverse axis for on-site adjustment. Such an arrangement is intended to keep the running games constant between the fixed parts and the moving parts.

Le document EP 2 423 047 décrit un projecteur d'un véhicule automobile conçu pour réunir la fonction d'éclairage de nuit avec la fonction de signalisation de jour connue sous l'acronyme anglais DRL (Daytime Running Light). L'éclairage de nuit est obtenu par un module d'éclairage fixe, tandis que l'éclairage de type DRL est réalisé au moyen d'un réseau de diodes électroluminescentes pouvant être escamoté dans une position interne au projecteur.The document EP 2 423 047 describes a headlamp of a motor vehicle designed to combine the night lighting function with the daylighting function known by the acronym DRL (Daytime Running Light). The night lighting is obtained by a fixed lighting module, while the DRL lighting is achieved by means of a network of light-emitting diodes that can be retracted into a position inside the projector.

L'invention a pour objectif de proposer un module et un projecteur d'éclairage et/ou de signalisation apte à assurer au moins deux fonctions d'éclairage et/ou de signalisation et de construction simple et compacte.The invention aims to provide a module and a lighting projector and / or signaling capable of providing at least two lighting and / or signaling functions and simple and compact construction.

Dans ce contexte, l'invention a pour objet un module d'éclairage et/ou de signalisation notamment pour véhicule automobile, comportant un support de moyens de déviation optique de rayons lumineux émis par une première source de lumière fixe, dans lequel un châssis comporte deux écrans et une base les reliant transversalement à l'une de leur extrémité, ledit châssis étant monté mobile en rotation autour d'un axe sous l'effet d'un actionneur, de sorte que lesdits deux écrans soient aptes à prendre alternativement une position active en amont du support, notamment sur le trajet des rayons lumineux déviés par lesdits moyens de déviation optique, et dans laquelle l'écran en position active se trouve au droit d'une deuxième source de lumière, également fixe. Au moins un dispositif optique additionnel s'étend entre les écrans.In this context, the subject of the invention is a lighting and / or signaling module, in particular for a motor vehicle, comprising a support for means for optical deflection of light rays emitted by a first fixed light source, in which a chassis comprises two screens and a base connecting them transversely to one of their end, said frame being rotatably mounted about an axis under the effect of an actuator, so that said two screens are able to take alternately a position active upstream of the support, in particular on the path of the light rays deflected by said optical deflection means, and wherein the active position screen is in line with a second light source, also fixed. At least one additional optical device extends between the screens.

Selon différentes caractéristiques de l'invention, que l'on peut combiner seules ou à plusieurs avec les caractéristiques déjà décrites :

  • le au moins un dispositif optique additionnel est agencé pour passer au droit de la deuxième source de lumière fixe lors de la rotation du châssis ;
According to various features of the invention, which can be combined alone or with several features already described:
  • the at least one additional optical device is arranged to pass to the right of the second fixed light source during rotation of the frame;

On comprend que lorsque le châssis est mobile en rotation et que le dispositif optique additionnel passe sous la deuxième source de lumière, un effet optique pourra être mis en place dès lors que le dispositif optique additionnel est incliné de sorte qu'il n'est pas compris dans le plan de rotation du châssis. Une impression de déplacement vertical du module pourra être donnée alors que les composants du module ne connaissent qu'une rotation dans un plan horizontal.

  • le au moins un dispositif optique additionnel est incliné verticalement par rapport au plan de rotation horizontal du châssis, de sorte que le point de réflexion sur le dispositif optique de la lumière émise par la deuxième source de lumière varie en hauteur au cours de la rotation du châssis ;
  • le au moins un dispositif optique additionnel présente une courbure, dans le plan horizontal de rotation du châssis, sensiblement équivalente à la courbure dans le même plan des écrans du châssis, de manière à se trouver dans le prolongement des écrans ;
  • le dispositif optique additionnel est disposé entre le bord d'un premier écran du châssis et le bord en regard du deuxième écran ;
  • le dispositif optique additionnel présente une face d'entrée, sensiblement alignée sur son bord supérieur et apte à recevoir les rayons émis par la deuxième source de lumière lorsque le dispositif optique additionnel passe au droit de la deuxième source, et une face de sortie qui s'étend entre les bords des deux écrans, le dispositif optique additionnel étant apte à guider les rayons lumineux par réflexions internes successives de la face d'entrée vers la face de sortie ;
  • la face de sortie du dispositif optique additionnel présente une forme continue, sensiblement régulière ;
  • la face de sortie présente, d'un bord d'un écran au bord de l'autre écran, des pentes successives variables ;
  • la face de sortie du dispositif optique additionnel présente une forme en marches d'escalier ;
  • le module comporte un dispositif optique agencé entre un premier bord du premier écran et un premier bord en regard du deuxième écran, ainsi qu'un deuxième dispositif optique agencé entre un deuxième bord du premier écran et un deuxième bord en regard du deuxième écran ;
  • les moyens de déviation optique sont montés mobiles en rotation autour d'un deuxième axe, sous l'effet d'un actionneur tandis que la première source de lumière reste fixe par rapport à l'actionneur ;
  • le châssis est entraîné en rotation indépendamment des moyens de déviation optique, ledit deuxième axe étant distinct dudit premier axe ;
  • les écrans du châssis sont constitués par un guide en nappe dont la partie périphérique renvoie la lumière de la deuxième source de lumière pour remplir une fonction de signal ; par guide en nappe, on entend un guide surfacique, porteur de deux dioptres qui s'étendent sensiblement parallèles l'un par rapport à l'autre ;
  • le au moins un dispositif optique est relié aux écrans du châssis au niveau de la partie périphérique desdits écrans.
It is understood that when the frame is rotatable and the additional optical device passes under the second light source, an optical effect can be implemented when the additional optical device is inclined so that it is not included in the chassis rotation plan. An impression of vertical displacement of the module can be given while the components of the module know only one rotation in a horizontal plane.
  • the at least one additional optical device is inclined vertically with respect to the horizontal plane of rotation of the frame, so that the reflection point on the optical device of the light emitted by the second light source varies in height during the rotation of the frame ;
  • the at least one additional optical device has a curvature, in the horizontal plane of rotation of the frame, substantially equivalent to the curvature in the same plane of the screens of the chassis, so as to be in the extension of the screens;
  • the additional optical device is disposed between the edge of a first screen of the frame and the edge opposite the second screen;
  • the additional optical device has an input face substantially aligned with its upper edge and adapted to receive the rays emitted by the second light source when the additional optical device passes to the right of the second source, and an output face which extends between the edges of the two screens, the additional optical device being adapted to guide the light rays by successive internal reflections of the input face to the output face;
  • the exit face of the additional optical device has a continuous, substantially regular shape;
  • the output face has, from one edge of a screen to the edge of the other screen, successive successive slopes;
  • the exit face of the additional optical device has a stair step shape;
  • the module comprises an optical device arranged between a first edge of the first screen and a first edge facing the second screen, and a second optical device arranged between a second edge of the first screen and a second edge facing the second screen;
  • the optical deflection means are rotatably mounted about a second axis under the effect of an actuator while the first light source remains fixed relative to the actuator;
  • the frame is rotated independently of the optical deflection means, said second axis being distinct from said first axis;
  • the screens of the frame are constituted by a guide sheet whose peripheral part returns the light of the second light source to fill a signal function; web guide means a surface guide carrying two dioptres which extend substantially parallel to each other;
  • the at least one optical device is connected to the screens of the frame at the peripheral portion of said screens.

L'invention concerne également un projecteur d'éclairage et/ou de signalisation pour véhicule automobile, comprenant un boîtier et au moins un module d'éclairage et/ou de signalisation, dans lequel le module d'éclairage et/ou de signalisation est conforme à ce qui a été décrit précédemment. Le projecteur peut comporter avantageusement trois modules d'éclairage et/ou de signalisation.The invention also relates to a lighting and / or signaling projector for a motor vehicle, comprising a housing and at least one lighting and / or signaling module, in which the lighting and / or signaling module conforms to to what has been described previously. The projector can advantageously comprise three lighting modules and / or signaling.

D'autres caractéristiques et avantages de la présente invention apparaitront plus clairement à l'aide de la description et des dessins parmi lesquels :

  • la figure 1 est une vue en perspective de trois quart avant d'un module d'éclairage et/ou de signalisation selon un premier mode de réalisation de l'invention, comportant un support monté mobile en rotation autour d'un axe ainsi qu'un châssis à deux écrans entourant ledit support, ledit module étant représenté ici dans une première position avec une face d'aspect d'un support qui est tournée vers l'avant du véhicule et avec un premier écran du châssis qui est en regard de cette face d'aspect, ledit châssis comportant dans ce premier mode de réalisation un dispositif optique additionnel formé par un guide optique qui s'étend entre les deux écrans ;
  • les figures 2 et 3 sont des vues en perspective du module de la figure 1, dans lesquelles la face de sortie du dispositif optique additionnel du module de la figure 1 présente une forme à pentes variables (figure 2) et une forme en marches d'escalier (figure 3) ; et
  • les figures 4 et 7 sont des vues représentatives d'un déplacement du châssis et du support du module selon les figures 2 et 3, depuis une première position (figure 4) où une face d'aspect du support est visible et un deuxième écran du châssis est disposé en amont, à une deuxième position (figure 7) où c'est une face réfléchissante du support et un premier écran du châssis qui sont désormais tournés vers l'avant du véhicule, les figures 5 et 6 illustrant des positions intermédiaires.
Other features and advantages of the present invention will become more clearly apparent from the description and the drawings, among which:
  • the figure 1 is a perspective view of three quarter front of a lighting module and / or signaling according to a first embodiment of the invention, comprising a support rotatably mounted around an axis and a frame to two screens surrounding said support, said module being represented here in a first position with an aspect face of a support which is turned towards the front of the vehicle and with a first screen of the chassis which is opposite this face of aspect, said chassis comprising in this first embodiment an additional optical device formed by an optical guide which extends between the two screens;
  • the Figures 2 and 3 are perspective views of the module of the figure 1 , in which the output face of the additional optical device of the module of the figure 1 presents a shape with variable slopes ( figure 2 ) and a stair step form ( figure 3 ); and
  • the Figures 4 and 7 are representative views of a displacement of the frame and the support of the module according to the Figures 2 and 3 from a first position ( figure 4 ) where an aspect face of the support is visible and a second screen of the frame is arranged upstream at a second position ( figure 7 ) where it is a reflective face of the support and a first screen of the frame which are now facing the front of the vehicle, the Figures 5 and 6 illustrating intermediate positions.

Dans la description qui va suivre, on adoptera à titre non limitatif une orientation longitudinale, verticale et transversale selon l'orientation traditionnellement utilisée dans l'automobile et indiquée par le trièdre L, V, T reporté sur la figure 1.In the following description, a longitudinal, vertical and transverse orientation will be adopted in a nonlimiting manner according to the orientation conventionally used in the automobile and indicated by the trihedron L, V, T carried over the figure 1 .

Selon l'invention, un module d'éclairage et/ou de signalisation 10 est fixé dans un boitier (non représenté) d'un projecteur, et il comporte un support 16 présentant une face réfléchissante et une face d'aspect, ainsi qu'un châssis 18 qui comporte deux écrans transparents à la lumière et qui est monté autour du support 16 de sorte que chacun des écrans du châssis puisse être disposé en regard de l'une des faces du support.According to the invention, a lighting and / or signaling module 10 is fixed in a housing (not shown) of a projector, and it comprises a support 16 having a reflecting face and an aspect face, as well as a frame 18 which has two light-transparent screens and which is mounted around the support 16 so that each of the screens of the frame can be arranged facing one of the faces of the support.

Ce châssis peut être fixe par rapport au module, ou bien être monté mobile en rotation, et ce de façon solidaire en rotation du support ou bien de façon indépendante du support, de telle manière que le châssis peut tourner autour du support, pendant que celui-ci reste fixe ou tourne par ailleurs. On va décrire par la suite un mode de réalisation, dans lequel le support est monté mobile en rotation et le châssis solidaire en rotation de celui-ci mais il sera compris que les variantes évoquées en début de ce paragraphe pourront être facilement mises en oeuvre sans sortir du contexte de l'invention.This frame may be fixed relative to the module, or may be rotatably mounted, and this in solidarity with rotation of the support or independently of the support, so that the frame can rotate around the support, while that it remains fixed or rotates elsewhere. An embodiment will be described below, in which the support is rotatably mounted and the chassis rotates in solidarity with it, but it will be understood that the variants mentioned at the beginning of this paragraph can be easily implemented without depart from the context of the invention.

Le support est monté mobile en rotation et le module comporte à cet effet un premier actionneur 12 solidaire du boitier du projecteur dans lequel est logé le module, ainsi qu'un premier axe 14 entrainé en rotation par le premier actionneur 12 et solidaire du support.The support is rotatably mounted and the module comprises for this purpose a first actuator 12 integral with the housing of the projector in which the module is housed, and a first axis 14 rotated by the first actuator 12 and secured to the support.

Le premier actionneur 12 comprend un moteur électrique, piloté par des moyens de commande (non visibles sur les figures 1 et 2) et aptes à transmettre une instruction de commande audit moteur, et des moyens de transmission en rotation entre le moteur et le premier axe. Dans les modes de réalisation représentés, le premier axe 14 soutient le support 16 en sa partie inférieure, et le premier axe 14 est sensiblement vertical, mais il pourrait avoir une autre orientation.The first actuator 12 comprises an electric motor, driven by control means (not visible on the Figures 1 and 2 ) and able to transmit a command instruction to said engine, and means for transmitting in rotation between the engine and the first axis. In the embodiments shown, the first axis 14 supports the support 16 in its lower part, and the first axis 14 is substantially vertical, but it could have another orientation.

Le support 16 du module 10 comporte des moyens de déviation optique sur une première face réfléchissante 20, qui jouent le rôle d'un réflecteur apte à assurer une fonction d'éclairage et/ou de signalisation réglementaire. Cette fonction est remplie par la coopération du réflecteur 20 avec une première source de lumière 22. La première source de lumière 22 est fixe par rapport à l'actionneur.The support 16 of the module 10 comprises optical deflection means on a first reflecting face 20, which act as a reflector capable of providing a lighting function and / or regulatory signaling. This function is fulfilled by the cooperation of the reflector 20 with a first light source 22. The first light source 22 is fixed relative to the actuator.

On entend par « réglementaire » le fait qu'une fonction d'éclairage et/ou de signalisation est conforme à la réglementation en vigueur. Cette fonction d'éclairage et/ou de signalisation réglementaire peut être une fonction de signalisation de jour, communément désigné par l'appellation DRL (de l'acronyme anglo-saxon « Daytime Running Light »), ou bien une fonction d'éclairage de croisement, communément désignée « code », ou encore une fonction d'éclairage communément désignée « route ». La première face réfléchissante 20 assure ainsi la formation d'un faisceau d'éclairage et/ou de signalisation réglementaire dirigé vers l'avant du véhicule."Regulatory" means that a lighting and / or signaling function complies with the regulations in force. This lighting function and / or regulatory signaling may be a day signaling function, commonly referred to as the DRL (the English acronym "Daytime Running Light"), or a lighting function of crossing, commonly referred to as "code", or a lighting function commonly referred to as "road". The first reflecting surface 20 thus ensures the formation of a lighting beam and / or regulatory signaling directed towards the front of the vehicle.

La première source de lumière 22 est une source à semi-conducteurs, et de préférence du type diode à électroluminescence (LED), et elle est sensiblement alignée sur le premier axe 14. On entend par l'expression « sensiblement alignée » que la distance entre le centre géométrique de la diode électroluminescente 22 et l'axe de rotation du support 16 n'est pas supérieure aux dimensions de la diode électroluminescente 22. Cette dernière peut être fixée et positionnée sur une carte de circuits imprimés 24, elle-même fixée dans le boitier (non représenté) du projecteur.The first light source 22 is a semiconductor source, and preferably of the electroluminescence diode (LED) type, and is substantially aligned with the first axis 14. The term "substantially aligned" means that the distance between the geometric center of the light-emitting diode 22 and the axis of rotation of the support 16 is not greater than the dimensions of the light-emitting diode 22. The latter can be fixed and positioned on a printed circuit board 24, itself fixed in the case (not shown) of the projector.

Le support 16 du module 10 comporte également une deuxième face 26 opposée à la première face formant le réflecteur 20 et assurant une deuxième fonction. Cette deuxième fonction peut être soit une fonction de signalisation de jour réglementaire, soit une fonction d'éclairage de croisement et/ou de route réglementaire, soit une fonction d'aspect.The support 16 of the module 10 also comprises a second face 26 opposite to the first face forming the reflector 20 and providing a second function. This second function can be either a regulation day signaling function, a crossover lighting function and / or regulatory route, or an aspect function.

Tel qu'illustré, le module 10 peut comporter un pivot supérieur 36 colinéaire avec le premier axe 14 par l'intermédiaire du support 16 pour accroître la précision du positionnement relatif de la première source de lumière 22 par rapport au réflecteur 20.As illustrated, the module 10 may comprise an upper pivot 36 collinear with the first axis 14 via the support 16 to increase the accuracy of the relative positioning of the first light source 22 with respect to the reflector 20.

Le châssis 18 est réalisé dans un matériau transparent à la lumière et il comporte deux écrans 28 et 30 qui s'étendent sensiblement verticalement dans le module, parallèles entre eux, et parmi lesquels au moins un joue le rôle de guide de lumière. Chaque écran présente un bord périphérique 38 et un bord supérieur 40. Les écrans sont reliés à leur extrémité supérieure par des parois de liaison transversales 32 qui se raccordent perpendiculairement aux extrémités latérales du bord supérieur de l'écran en formant une base supérieure de liaison avec le support, de manière à ce que le châssis soit entraîné en rotation solidairement du support lorsque celui-ci est mis en rotation par l'actionneur.The frame 18 is made of a material transparent to light and has two screens 28 and 30 which extend substantially vertically in the module, parallel to each other, and among which at least one plays the role of light guide. Each screen has a peripheral edge 38 and an upper edge 40. The screens are connected at their upper end by transverse connecting walls 32 which are connected perpendicularly to the lateral ends of the upper edge of the screen forming an upper connecting base with the support, so that the frame is rotated integrally of the support when it is rotated by the actuator.

Les écrans prennent de préférence la forme d'un guide de lumière en nappe, avec une partie centrale de la nappe présentant un profil galbé dont la courbure suit sensiblement la direction de rotation du châssis. Le châssis est ainsi agencé dans le module de sorte qu'il entoure le support, avec le premier écran 28 ou le deuxième écran 30 qui est apte selon la position du châssis à prendre la position active en amont du support. On entend par « en amont » la position dans laquelle l'écran est disposé entre le support et l'avant du véhicule, vers lequel les fonctions d'éclairage et/ou de signalisation sont dirigées.The screens preferably take the form of a sheet light guide, with a central portion of the sheet having a curved profile whose curvature substantially follows the direction of rotation of the frame. The chassis is thus arranged in the module so that it surrounds the support, with the first screen 28 or the second screen 30 which is adapted according to the position of the chassis to take the active position upstream of the support. The term "upstream" the position in which the screen is disposed between the support and the front of the vehicle, to which the lighting and / or signaling functions are directed.

La partie centrale de la nappe de chaque écran peut porter des moyens de découplage, notamment des prismes, pour la déviation des rayons réfléchis par le réflecteur et traversant l'écran. On peut prévoir que les deux écrans présentent des surfaces optiques différentes, l'un présentant par exemple une surface neutre, apte à ne pas gêner la diffusion des rayons lumineux émis par la première source 22 et déviés par le réflecteur, tandis que l'autre peut comporter des dispositifs optiques dont l'agencement peut former un ou plusieurs motifs représentatifs par exemple d'une marque que l'on souhaite mettre en évidence lors d'une fonction de signalisation. D'autres différences structurelles peuvent apparaître, comme par exemple le fait que l'un des écrans du châssis comporte des éléments de découplage de la lumière sur tout ou partie de sa surface pour la fonction d'aspect, tandis que l'autre écran ne présente pas un tel aspect pour rester neutre.The central portion of the web of each screen may carry decoupling means, including prisms, for the deviation of the rays reflected by the reflector and through the screen. It can be provided that the two screens have different optical surfaces, one having for example a neutral surface, able not to hinder the diffusion of the light rays emitted by the first source 22 and deflected by the reflector, while the other may comprise optical devices whose arrangement may form one or more representative patterns, for example of a mark that is to be highlighted during a signaling function. Other structural differences may appear, such as the fact that one of the screens of the frame has elements of decoupling of the light on all or part of its surface for the appearance function, while the other screen does not does not present such an aspect to remain neutral.

Dans le module selon l'invention, on peut prévoir une deuxième source de lumière 34, fixée et positionnée sur une carte de circuits imprimés, avantageusement la carte porteuse par ailleurs de la première source de lumière 22. La deuxième source de lumière est apte à éclairer l'écran du châssis qui se trouve en position active en amont du support. On prévoit que la deuxième source de lumière soit disposée à une distance déterminée de la première source de lumière pour que l'écran du châssis, lorsqu'il est dans la position active en amont du support, soit disposé au droit de la deuxième source de lumière et puisse être illuminé par celle-ci. La deuxième source de lumière 34 est fixe par rapport à la première source de lumière 22 et elle reste fixe tandis que le support et/ou le châssis tourne. Elle peut être constituée d'une ou plusieurs sources à semi-conducteurs, et par exemple des diodes électroluminescentes (LED). Dans les modes de réalisation illustrés, on a prévu que deux diodes électroluminescentes forment la deuxième source de lumière.In the module according to the invention, it is possible to provide a second light source 34, fixed and positioned on a printed circuit board, advantageously also the card carrying the first light source 22. The second light source is able to illuminate the screen of the frame which is in the active position upstream of the support. It is expected that the second light source is disposed at a predetermined distance from the first light source so that the screen of the frame, when in the active position upstream of the support, is arranged in line with the second source of light. light and can be illuminated by it. The second light source 34 is fixed relative to the first light source 22 and remains fixed while the support and / or chassis rotates. It may consist of one or more semiconductor sources, for example light-emitting diodes (LEDs). In the illustrated embodiments, two light emitting diodes are provided to form the second light source.

De la sorte, le premier écran ou le deuxième écran du châssis 18 se retrouvant dans cette position active en amont du support est disposé au droit de la deuxième source de lumière 34 de manière à pouvoir assurer ainsi une fonction de signalisation réglementaire si la deuxième source de lumière est allumée. La face d'entrée du guide optique, réalisé par l'un ou l'autre des écrans, pour les rayons lumineux émis par cette deuxième source de lumière est formée par le bord supérieur de l'écran tandis que les faces de sortie sont aménagées dans le bord périphérique. On réalise ainsi une fonction d'éclairage et/ou de signalisation, distincte de celle réalisée par la réflexion des rayons lumineux de la première source de lumière. La partie périphérique de l'écran peut présenter un prisme orienté de telle ou telle façon pour procéder au renvoi de la lumière de la deuxième source 34 vers l'avant du véhicule pour remplir une fonction de signalisation et/ou vers l'arrière pour participer à la fonction d'aspect.In this way, the first screen or the second screen of the frame 18 found in this active position upstream of the support is arranged at the right of the second light source 34 so as to ensure a regulatory signaling function if the second source of light is on. The input face of the optical guide, made by one or other of the screens, for the light rays emitted by this second light source is formed by the upper edge of the screen while the exit faces are arranged in the peripheral edge. A lighting and / or signaling function is thus realized, distinct from that achieved by the reflection of the light rays of the first light source. The peripheral portion of the screen may have a prism oriented in such or such way to proceed to return the light from the second source 34 towards the front of the vehicle to perform a signaling function and / or back to participate to the appearance function.

La deuxième source de lumière 34 peut être allumée en plus de la première source de lumière 22 afin que la partie périphérique 38 du premier écran 28, en regard du réflecteur, émette de la lumière. Cela permet d'utiliser un premier écran du châssis 18 en complément du réflecteur 20. Un usage préféré des deux sources de lumière est de garder la deuxième source constamment allumée et d'augmenter l'intensité de la deuxième source de lumière si l'on souhaite exercer une fonction de signalisation, ou bien d'allumer la première source de lumière si l'on souhaite exercer une fonction d'éclairage.The second light source 34 can be turned on in addition to the first light source 22 so that the peripheral portion 38 of the first screen 28, facing the reflector, emits light. This makes it possible to use a first screen of the frame 18 in addition to the reflector 20. A preferred use of the two light sources is to keep the second source constantly lit and to increase the intensity of the second light source if one wish to perform a signaling function, or to turn on the first light source if it is desired to perform a lighting function.

Selon l'invention, on prévoit de disposer entre les écrans au moins un dispositif optique additionnel 70. Ce dispositif optique additionnel 70 prend ici la forme d'un dispositif optique additionnel 72, venu de matière avec les écrans, dont la face d'entrée est disposée dans la continuité horizontale du bord supérieur 40 des écrans, et dont la face de sortie 74 prend place entre les deux écrans.According to the invention, provision is made to arrange between the screens at least one additional optical device 70. This additional optical device 70 here takes the form of an additional optical device 72, integral with the screens, whose input face is disposed in the horizontal continuity of the upper edge 40 of the screens, and whose output face 74 takes place between the two screens.

On comprend que le guide additionnel 72 est adapté à conduire la lumière émise par la deuxième source de lumière 34 et pénétrant par la face d'entrée, depuis cette face d'entrée vers la face de sortie 74 par réflexions internes successives.It is understood that the additional guide 72 is adapted to conduct the light emitted by the second light source 34 and penetrating through the input face, from this input face to the output face 74 by successive internal reflections.

Le guide additionnel est courbe. Une première courbure est telle que la projection du guide additionnel dans le plan perpendiculaire à l'axe de rotation prend la forme d'un arc de cercle centré sur ledit axe de rotation. Cette première courbure des éléments de structure présente un double intérêt : un premier intérêt mécanique, en ce qu'elle permet un dégagement radial des éléments de structure pour permettre la rotation relative du support par rapport au châssis, et un deuxième intérêt esthétique en ce qu'elle permet d'inscrire chacun des éléments de structure dans la continuité des écrans du châssis, courbes également.The additional guide is curved. A first curvature is such that the projection of the additional guide in the plane perpendicular to the axis of rotation takes the form of a circular arc centered on said axis of rotation. This first curvature of the structural elements has a double interest: a first mechanical interest, in that it allows a radial clearance of the structural elements to allow the relative rotation of the support relative to the frame, and a second aesthetic interest in that it allows to register each of the structural elements in the continuity of the screens of the frame, curves also.

Outre le fait de présenter cette première courbure, la face de sortie du guide additionnel est inclinée par rapport à l'horizontale, de sorte qu'elle n'est pas comprise intégralement dans le plan de rotation du châssis.In addition to presenting this first curvature, the exit face of the additional guide is inclined relative to the horizontal, so that it is not completely included in the plane of rotation of the frame.

On a représenté sur les figures 1 à 3 trois modes de réalisation différents du dispositif optique additionnel formant le dispositif optique additionnel. La figure 1 divulgue un module dans lequel la face de sortie du dispositif optique additionnel présente une forme continue, pour créer un profil montant sensiblement régulier. La figure 2 divulgue un module dans lequel la face de sortie présente, d'un bord d'un écran au bord de l'autre écran, des pentes successives variables. Et la figure 3 divulgue un module dans lequel la face de sortie du dispositif optique additionnel présente une forme en marches d'escalier.We have shown on Figures 1 to 3 three different embodiments of the additional optical device forming the additional optical device. The figure 1 discloses a module in which the output face of the additional optical device has a continuous shape, to create a substantially regular rising profile. The figure 2 discloses a module in which the output face has, from one edge of a screen to the edge of the other screen, successive successive slopes. And the figure 3 discloses a module in which the output face of the additional optical device has a stair step shape.

Le module comporte deux dispositifs optiques additionnels. Un premier dispositif additionnel 70 s'étend entre un premier bord du premier écran et un premier bord en regard du deuxième écran, et un deuxième dispositif additionnel 71 s'étend entre un deuxième bord du premier écran et un deuxième bord en regard du deuxième écran. Ceci est notamment intéressant lorsque le module est mobile en rotation sur plus d'un demi-tour, puisque cela offre une continuité pour l'observateur devant le véhicule. Pour un tour complet, l'observateur peut voir la séquence suivante : premier écran 28-premier dispositif additionnel 70-deuxième écran 30-deuxième dispositif additionnel 71-premier écran 28.The module has two additional optical devices. A first additional device 70 extends between a first edge of the first screen and a first edge opposite the second screen, and a second additional device 71 extends between a second edge of the first screen and a second edge opposite the second screen. second screen. This is particularly interesting when the module is rotatable over more than half a turn, since this provides continuity for the observer in front of the vehicle. For a complete turn, the observer can see the following sequence: first screen 28-first additional device 70-second screen 30-second additional device 71-first screen 28.

S'il apparait à la lecture des figures que plusieurs agencement peuvent être prévus pour l'orientation et la forme de la face de sortie du dispositif optique additionnel d'un véhicule à l'autre, on comprend que les deux dispositifs optiques additionnels disposés dans un même module sont identiques, et disposés symétriquement par rapport à l'axe de rotation du châssis. De la sorte, lorsqu'un premier dispositif optique additionnel a une face de sortie qui présente, pour un sens de rotation donné du châssis, un profil montant, le deuxième guide additionnel symétrique a une face de sortie qui présente, pour le même sens de rotation, un profil montant également.If it appears from the figures that several arrangements can be provided for the orientation and the shape of the output face of the additional optical device from one vehicle to the other, it is understood that the two additional optical devices arranged in the same module are identical and arranged symmetrically with respect to the axis of rotation of the chassis. In this way, when a first additional optical device has an output face which has, for a given direction of rotation of the frame, a rising profile, the second symmetrical additional guide has an exit face which has, for the same direction of rotation, a rising profile also.

Le dispositif optique additionnel pourra prendre d'autres formes qu'un dispositif optique additionnel, formant un carénage s'inscrivant dans la continuité des écrans, dès lors que son agencement et son orientation permettent de réfléchir la lumière en sortie du projecteur avec une composante verticale modifiée au fur et à mesure de la rotation effectivement horizontale du châssis.The additional optical device may take other forms than an additional optical device, forming a fairing forming part of the continuity of the screens, since its arrangement and its orientation allow to reflect the light output of the projector with a vertical component modified as the horizontal rotation of the frame is actually made.

On va maintenant décrire, en s'appuyant sur les illustrations des figures 4 à 7, l'éclairage des dispositifs optiques additionnels par la deuxième source de lumière au fur et à mesure de leur passage devant cette source lors de la rotation du châssis du module.We will now describe, based on the illustrations of Figures 4 to 7 , lighting the additional optical devices by the second light source as they pass in front of this source during rotation of the module frame.

Le module est agencé de sorte que lorsque le châssis, solidairement ou non du support, est mobile en rotation pour passer d'une position où un premier écran est disposé en position active sous la deuxième source de lumière à une position où c'est le deuxième écran qui est disposé dans cette position active, on observe que l'un ou l'autre des dispositifs optiques additionnels, selon le sens de rotation du châssis, passe sous la deuxième source de lumière fixe.The module is arranged so that when the frame, integrally or not support, is rotatable to move from a position where a first screen is disposed in the active position under the second light source to a position where it is the second screen which is arranged in this active position, it is observed that one or the other additional optical devices, according to the direction of rotation of the frame, passes under the second fixed light source.

La figure 4 illustre le module dans une configuration où le deuxième écran 28 du châssis et la face d'aspect du support sont en position active, de sorte que les deux diodes formant ici la deuxième source de lumière 34 peuvent émettre des rayons aptes à pénétrer dans l'écran et à illuminer les faces de sortie formées par les parties périphériques 38 de l'écran.The figure 4 illustrates the module in a configuration where the second screen 28 of the chassis and the aspect face of the support are in the active position, so that the two diodes here forming the second light source 34 can emit rays able to penetrate the screen and to illuminate the exit faces formed by the peripheral portions 38 of the screen.

Les figures 5 et 6 illustrent des états intermédiaires entre cette position de la figure 4 et la position illustrée sur la figure 7, dans laquelle le module a été mis en rotation pour que ce soit la face réfléchissante du support et le premier écran qui soient en position active.The Figures 5 and 6 illustrate intermediate states between this position of the figure 4 and the position shown on the figure 7 , in which the module has been rotated so that it is the reflective face of the support and the first screen which are in the active position.

Dès que la position angulaire du châssis est telle que les rayons émis par la deuxième source de lumière ne pénètrent plus dans l'écran initialement en position active, les rayons pénètrent dans le dispositif optique additionnel. On peut ainsi observer, figure 5, que les rayons émis par les diodes de la deuxième source de lumière sont ciblés sur la partie du dispositif optique additionnel la plus proche du deuxième écran, et donc ici sur la partie de la face de sortie la plus basse. On comprend que si le sens de rotation avait été différent, c'est la partie de la face de sortie la plus haute qui aurait été illuminée dans un premier temps.As soon as the angular position of the frame is such that the rays emitted by the second light source no longer enter the screen initially in the active position, the rays penetrate into the additional optical device. We can observe, figure 5 , that the rays emitted by the diodes of the second light source are targeted at the part of the additional optical device closest to the second screen, and thus here on the part of the lowest output face. We understand that if the direction of rotation had been different, it is the part of the highest output face that would have been illuminated at first.

Dans le sens de rotation illustré, au fur et à mesure de la rotation du châssis, les rayons émis par la deuxième source de lumière impactent une partie de la face de sortie de plus en plus haute.In the direction of rotation illustrated, as the chassis rotates, the rays emitted by the second light source impact a part of the output face that is higher and higher.

Ainsi, la composante verticale de l'agencement de la face de sortie du dispositif optique additionnel fait en sorte que le point d'impact des rayons lumineux émis par la deuxième source sur la face de sortie du dispositif optique additionnel au fur et à mesure de son passage devant la deuxième source se déplace verticalement. L'observateur peut ainsi avoir l'impression que le module subit à la fois une rotation dans le plan horizontal et une translation verticale, de manière semblable à un mouvement hélicoïdal montant.Thus, the vertical component of the arrangement of the output face of the additional optical device ensures that the point of impact of the light rays emitted by the second source on the output face of the additional optical device as and when required. its passage in front of the second source moves vertically. The observer can thus have the impression that the module undergoes both a rotation in the horizontal plane and a vertical translation, similar to a rising helical movement.

La description qui précède explique clairement comment l'invention permet d'atteindre les objectifs qu'elle s'est fixés et notamment de proposer un module d'éclairage et/ou de signalisation dans lequel un châssis est disposé autour d'un support de moyens de déviation optique de rayons lumineux émis par une source de lumière, pour apporter une complémentarité à la fonction de signalisation notamment, et de proposer un châssis spécifique en ce que des dispositifs optiques additionnels sont aptes à utiliser les rayons lumineux émis par ailleurs pour une fonction de signalisation en coopération avec les écrans du châssis, notamment pour créer un effet visuel lors de la rotation du châssis et donner une impression de mécanisme complexe de rotation là où seule une rotation axiale est prévue.The foregoing description clearly explains how the invention makes it possible to achieve the objectives that it has set itself, and in particular to propose a lighting and / or signaling module in which a chassis is arranged around a medium of means. optical deflection of light rays emitted by a light source, to provide complementarity to the signaling function in particular, and to provide a specific chassis in that optical devices additional features are able to use the light rays emitted elsewhere for a signaling function in cooperation with the screens of the chassis, in particular to create a visual effect when rotating the frame and give an impression of a complex mechanism of rotation where only a rotation axial is provided.

On comprend que le projecteur d'un véhicule automobile, pour réaliser des fonctions d'éclairage et/ou de signalisation, peut comporter un ou plusieurs modules identiques à celui qui a été décrit, disposés en série dans un boîtier. Dans le cas d'une série de plusieurs modules, avantageusement trois, on pourra prévoir de rendre rotatif le châssis de chaque module par des actionneurs pouvant être pilotés de façon indépendante les uns des autres, pour assurer une plus grande souplesse dans les fonctions d'éclairage et/ou de signalisation.It is understood that the headlight of a motor vehicle, for performing lighting and / or signaling functions, may comprise one or more modules identical to that which has been described, arranged in series in a housing. In the case of a series of several modules, advantageously three, it will be possible to rotate the frame of each module by actuators that can be controlled independently of each other, to provide greater flexibility in the functions of lighting and / or signaling.

Claims (16)

Module d'éclairage et/ou de signalisation notamment pour véhicule automobile, comportant un support (16) de moyens de déviation optique (20) de rayons lumineux émis par une première source de lumière (22) fixe,
caractérisé en ce qu'il comporte en outre un châssis (18) comportant deux écrans (28, 30), dont l'un au moins joue le rôle d'un guide optique, ainsi qu'une base (32) les reliant transversalement à l'une de leur extrémité, ledit châssis étant monté mobile en rotation autour d'un axe sous l'effet d'un actionneur, de sorte que lesdits deux écrans soient aptes à prendre alternativement une position active en amont du support, notamment sur le trajet des rayons lumineux déviés par lesdits moyens de déviation optique, et dans laquelle l'écran en position active se trouve au droit d'une deuxième source de lumière (34), également fixe, et caractérisé en ce qu'au moins un dispositif optique additionnel (70) s'étend entre les écrans.Lighting and / or signaling module, in particular for a motor vehicle, comprising a support (16) for optical deflection means (20) for light rays emitted by a fixed first light source (22),
characterized in that it further comprises a frame (18) having two screens (28, 30), at least one of which acts as an optical guide, and a base (32) connecting them transversely to one of their end, said frame being rotatably mounted about an axis under the effect of an actuator, so that said two screens are able to take alternately an active position upstream of the support, in particular on the path of the light rays deflected by said optical deflection means, and wherein the active position screen is in line with a second light source (34), also fixed, and characterized in that at least one optical device additional (70) extends between the screens. Module selon la revendication 1, caractérisé en ce que le au moins un dispositif optique additionnel (70) est agencé pour passer au droit de la deuxième source de lumière (34) fixe lors de la rotation du châssis (18).Module according to claim 1, characterized in that the at least one additional optical device (70) is arranged to pass to the right of the second light source (34) fixed during the rotation of the frame (18). Module selon la revendication 2, caractérisé en ce que le au moins un dispositif optique additionnel (70) est incliné verticalement par rapport au plan de rotation horizontal du châssis (18), de sorte que le point de réflexion sur le dispositif optique additionnel de la lumière émise par la deuxième source de lumière (34) varie en hauteur au cours de la rotation du châssis.Module according to claim 2, characterized in that the at least one additional optical device (70) is inclined vertically with respect to the horizontal plane of rotation of the frame (18), so that the reflection point on the additional optical device of the light emitted by the second light source (34) varies in height during the rotation of the frame. Module selon la revendication précédente, caractérisé en ce que le au moins un dispositif optique additionnel (70) présente une courbure, dans le plan horizontal de rotation du châssis (18), sensiblement équivalente à la courbure dans le même plan des écrans (28, 30) du châssis, de manière à se trouver dans le prolongement des écrans.Module according to the preceding claim, characterized in that the at least one additional optical device (70) has a curvature, in the horizontal plane of rotation of the frame (18), substantially equivalent to the curvature in the same plane of the screens (28, 30) of the chassis, so as to be in the extension of the screens. Module selon l'une des revendications précédentes, caractérisé en ce que le dispositif optique additionnel (70) consiste en un dispositif optique additionnel (72) disposé entre le bord d'un premier écran (28) du châssis (18) et le bord en regard du deuxième écran (30).Module according to one of the preceding claims, characterized in that the additional optical device (70) consists of an additional optical device (72) disposed between the edge of a first screen (28) of the frame (18) and the edge facing the second screen (30). Module selon la revendication précédente, caractérisé en ce que le dispositif optique additionnel (72) présente une face d'entrée, sensiblement alignée sur le bord supérieur (40) des écrans du châssis et apte à recevoir les rayons émis par la deuxième source de lumière (34) lorsque le châssis passe au droit de ladite deuxième source, et une face de sortie (74) qui s'étend entre les bords des deux écrans (28, 30), le dispositif optique additionnel étant apte à guider les rayons lumineux par réflexions internes successives de la face d'entrée vers la face de sortie.Module according to the preceding claim, characterized in that the additional optical device (72) has an input face, substantially aligned with the upper edge (40) of the screens of the frame and adapted to receive the rays emitted by the second light source (34) when the frame passes to the right of said second source, and an exit face (74) extending between the edges of the two screens (28, 30), the additional optical device being able to guide the light rays by successive internal reflections from the entrance face to the exit face. Module selon la revendication 6, caractérisé en ce que la face de sortie (74) du dispositif optique additionnel (72) présente une forme continue, sensiblement régulière.Module according to claim 6, characterized in that the output face (74) of the additional optical device (72) has a continuous, substantially regular shape. Module selon la revendication 6, caractérisé en ce que la face de sortie (74) présente, d'un bord d'un écran (28) au bord de l'autre écran (30), des pentes successives variables.Module according to claim 6, characterized in that the output face (74) has, from one edge of a screen (28) to the edge of the other screen (30), successive successive slopes. Module selon la revendication 6, caractérisé en ce que la face de sortie (74) du dispositif optique additionnel (72) présente une forme en marches d'escalier.Module according to claim 6, characterized in that the exit face (74) of the additional optical device (72) has a stair step shape. Module selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comporte un dispositif optique additionnel (70) agencé entre un premier bord du premier écran (28) et un premier bord en regard du deuxième écran (30), ainsi qu'un deuxième dispositif optique additionnel (71) agencé entre un deuxième bord du premier écran (28) et un deuxième bord en regard du deuxième écran (30).Module according to any one of the preceding claims, characterized in that it comprises an additional optical device (70) arranged between a first edge of the first screen (28) and a first edge facing the second screen (30), as well as a second additional optical device (71) arranged between a second edge of the first screen (28) and a second edge facing the second screen (30). Module selon l'une quelconque des revendications précédentes, caractérisé en ce que les moyens de déviation optique (20) sont montés mobiles en rotation autour d'un deuxième axe, sous l'effet d'un actionneur tandis que la première source de lumière reste fixe par rapport à l'actionneur.Module according to any one of the preceding claims, characterized in that the optical deflection means (20) are rotatably mounted around a second axis under the effect of an actuator while the first light source remains fixed relative to the actuator. Module selon la revendication précédente, caractérisé en ce que le châssis (18) est entraîné en rotation indépendamment des moyens de déviation optique (20).Module according to the preceding claim, characterized in that the frame (18) is rotated independently of the optical deflection means (20). Module selon l'une quelconque des revendications précédentes, caractérisé en ce que les écrans (28, 30) du châssis (18) sont constitués par un guide en nappe dont la partie périphérique (38) renvoie la lumière de la deuxième source de lumière (34) pour remplir une fonction de signal.Module according to any one of the preceding claims, characterized in that the screens (28, 30) of the frame (18) consist of a sheet guide whose peripheral portion (38) reflects the light of the second light source ( 34) to perform a signal function. Module selon la revendication précédente, caractérisé en ce que le au moins un dispositif optique additionnel (70) est relié aux écrans (28, 30) du châssis (18) au niveau de la partie périphérique (38) desdits écrans.Module according to the preceding claim, characterized in that the at least one additional optical device (70) is connected to the screens (28, 30) of the frame (18) at the peripheral portion (38) of said screens. Projecteur d'éclairage et/ou de signalisation pour véhicule automobile, comprenant un boîtier et au moins un module d'éclairage et/ou de signalisation, caractérisé en ce que le module d'éclairage et/ou de signalisation est conforme à l'une des revendications 1 à 14.Lighting and / or signaling projector for a motor vehicle, comprising a housing and at least one lighting and / or signaling module, characterized in that the lighting and / or signaling module complies with one of the Claims 1 to 14. Projecteur selon la revendication précédente, caractérisé en ce qu'il comporte au moins deux modules d'éclairage et/ou de signalisation.Projector according to the preceding claim, characterized in that it comprises at least two lighting and / or signaling modules.
EP15166197.2A 2014-06-16 2015-05-04 Rotary lighting and/or signalling module Active EP2957821B1 (en)

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CN105180047A (en) 2015-12-23
CN105180047B (en) 2019-11-12
EP2957821B1 (en) 2018-06-13
FR3022322A1 (en) 2015-12-18

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