EP2799763A1 - Vehicle headlamp - Google Patents
Vehicle headlamp Download PDFInfo
- Publication number
- EP2799763A1 EP2799763A1 EP20140165665 EP14165665A EP2799763A1 EP 2799763 A1 EP2799763 A1 EP 2799763A1 EP 20140165665 EP20140165665 EP 20140165665 EP 14165665 A EP14165665 A EP 14165665A EP 2799763 A1 EP2799763 A1 EP 2799763A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- reflector
- main
- diode
- light source
- vehicle
- 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
Links
- 230000011664 signaling Effects 0.000 claims abstract description 21
- 230000003287 optical effect Effects 0.000 claims abstract description 9
- 230000004907 flux Effects 0.000 claims abstract description 3
- 230000006870 function Effects 0.000 description 10
- 238000005286 illumination Methods 0.000 description 5
- 230000009131 signaling function Effects 0.000 description 4
- 241000861223 Issus Species 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
- F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
- F21S41/141—Light emitting diodes [LED]
- F21S41/147—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
- F21S41/14—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
- F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
- F21S41/32—Optical layout thereof
- F21S41/321—Optical layout thereof the reflector being a surface of revolution or a planar surface, e.g. truncated
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
- F21S41/32—Optical layout thereof
- F21S41/33—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature
- F21S41/334—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature the reflector consisting of patch like sectors
- F21S41/336—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature the reflector consisting of patch like sectors with discontinuity at the junction between adjacent areas
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
- F21S41/32—Optical layout thereof
- F21S41/36—Combinations of two or more separate reflectors
- F21S41/365—Combinations of two or more separate reflectors successively reflecting the light
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
- F21S41/65—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources
- F21S41/663—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources by switching light sources
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
- F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
- F21S43/14—Light emitting diodes [LED]
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/30—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by reflectors
- F21S43/31—Optical layout thereof
Definitions
- the invention relates to a lighting and signaling device of a vehicle.
- a vehicle and in particular a motor vehicle, is provided with a source of illumination intended to illuminate a road in dark weather, in order to allow a driver to guide his vehicle with safety, and a weaker signaling light source. intensity, intended to inform other drivers of the presence of the vehicle in broad daylight.
- the invention relates to an improved lighting and signaling device of a vehicle.
- DRLs daytime running lamps
- This device is independent and is added to the lighting device designed to illuminate the road.
- the coexistence of these two separate devices causes significant congestion within the vehicle, particularly at the front projectors in which they are generally placed.
- each of these two devices is based on a reflector which is specific to it, it is necessary to manufacture two separate reflectors, the overall machining time is long and therefore more expensive.
- the signaling light produced during the day is different from that generated at night to illuminate the road, so that the lighting of the vehicle does not constitute a distinguishing and recognizable sign in all circumstances, making it possible to identify the model and / or the mark of the said vehicle
- the lighting and signaling devices of a vehicle according to the invention make it possible to remedy the disadvantages noted in the state of the art.
- the subject of the invention is a device for illuminating and signaling a vehicle, comprising at least one cavity delimited by a main reflector defining an optical axis, said cavity comprising at least one main light source capable of illuminating a road in combination with said main reflector.
- the main characteristic of a lighting and signaling device is that said at least one cavity contains a secondary light source and a secondary reflector, said secondary source being positioned in the cavity so that the reflector secondary recuperates a portion of the luminous flux from said secondary source, said two sources and said two reflectors being arranged in the cavity to provide both a lighting function and vehicle signaling.
- the principle of the invention consists in adding to the main light source, a secondary light source associated with a secondary reflector, so that the two sources can provide a lighting function in dark weather or night, and a function vehicle daytime signaling.
- the secondary light source emits a light beam of conical shape, or a light cone, the secondary reflector collecting the majority of the light cone.
- the main reflector is shaped to return the rays of the main light source below a cut predominantly horizontal so as not to dazzle drivers who arrive in front.
- the main reflector comprises a focus, the rays coming from this focus and directly reaching the main reflector, being reflected by the main reflector below a predominantly horizontal cut.
- this main reflector also makes it possible to reflect the rays directly coming from the secondary source above said cutoff, and the rays originating from said secondary source and reflected a first time by the secondary reflector, below this cut.
- the main reflector has a complex reflection surface formed by an assembly of elementary sectors, each of said sectors being connected to the immediately adjacent sector by means of a generally vertical line.
- Each sector is advantageously generated by a horizontal generator from which a set of vertical curves upwards then downwards.
- the horizontal generatrix is for example convex and its profile determines the horizontal distribution of the beam generated by the sector.
- the generatrices of the sectors are chosen so that the rays coming from the source are reflected by the surface while being directed downwards to form the cut, for example the cleavage of the code.
- Vertical curves are, for example, parabolic arcs.
- the foci of each parable upward are generally distinct from the foci of the parables going downward.
- the main LED is placed on the optical axis of the main reflector in front of said reflector, to provide illumination of the road, in code mode or in high beam mode.
- the secondary reflector serves as a cache making it possible to mask at least partially the two light sources. Indeed, when the device according to the invention is placed in a vehicle, and more specifically in a front projector, the main reflector lining the rear background of said projector and the secondary reflector is placed in front of the two light sources, avoiding an individual placed in front of said vehicle and watching said projector to be dazzled by the two light sources.
- the main and secondary light sources are fixed and non-steerable on command.
- the main light source and the secondary light source may each be unitary, or consist of a plurality of small sources.
- a source unitary luminous unit may for example be a light-emitting diode, also called LED, with a single light-emitting element.
- a light source consisting of a plurality of small sources may for example be a light emitting diode comprising a plurality of light emitting elements.
- the main reflector may be symmetrical or asymmetrical.
- the main projector is shaped to ensure in combination with the main light source a "flat" type of lighting , ie a beam illuminating under a substantially flat cut, for example a fog or beam beam. which superimposed on an oblique cut beam makes it possible to produce a passing beam.
- the reflective face of the main reflector and the reflecting face of the secondary reflector are oriented toward each other.
- the main light source and the secondary light source are located between the main reflector and the secondary reflector. In this way, the light beams from the main light source and the light beams from the secondary light source can be reflected on both the main reflector and the secondary reflector.
- the secondary reflector is curved and delimits a space, the secondary light source being placed at said space and the main light source being placed between said secondary light source and the main reflector.
- the secondary reflector is advantageously constituted by a curved wall that can be open or closed, said wall delimiting an internal space. The secondary light source can thus be found inside said internal space, or outside this curved wall and at the right of said space.
- the secondary reflector is focused on the focus of the main reflector in two of these directions and shifted according to the remaining direction.
- this remaining direction is the vertical direction.
- the main reflector extends downward below the light source, the main source being positioned at the top of the main reflector and emitting downward, one or the focus of the secondary reflector is vertically offset and below the center of the main LED.
- the main light source and the secondary light source are each represented by a light emitting diode.
- This type of light source is particularly effective in terms of light intensity, while having a small footprint.
- the secondary reflector is ellipsoidal and is adapted to return the beams from the secondary diode which impact systematically to the main reflector.
- the secondary reflector is a wall delimiting a quarter of ellipsoid, said wall having a plane of symmetry.
- the secondary diode and the main diode are aligned on the same plane.
- This particular configuration is easy to perform, and allows a quality control of the mounting of the two diodes at a glance. In addition, it facilitates the mounting of the LEDs on the same printed circuit board.
- said alignment plane is horizontal.
- the main diode is centered on the optical axis of the main reflector.
- the secondary diode is placed at the first focus of the secondary reflector.
- the secondary diode is placed exactly at the first focus of the secondary reflector, and is therefore focused with respect to said reflector.
- the secondary ellipsoidal reflector in an orthonormal coordinate system defined by three orthogonal directions in space, the second focus of the secondary reflector is focused on the main diode along two of these directions and offset in a direction remaining, perpendicular to the optical axis.
- this remaining direction is the vertical direction.
- the main reflector extends downward below the light source, the main source being positioned at the top of the main reflector and emitting downward, one or the focus of the secondary reflector is vertically offset and below the center of the main LED.
- the secondary reflector is parabolic and is able to return the beams from the secondary diode which impact systematically towards the main reflector.
- the secondary reflector is a curved wall having a plane of symmetry.
- the secondary diode and the main diode are inclined with respect to each other.
- the main diode is located in a horizontal plane and the secondary diode is parallel to an inclined edge of said secondary reflector.
- the subject of the invention is a vehicle headlamp comprising a lighting and signaling device according to the invention.
- the lighting and signaling device has the advantage of being simplified and compact, inasmuch as it is the same cavity of the headlamp which provides the lighting and signaling functions of the vehicle without having underwent a structural change of background. It has the additional advantage of constituting a specific signature of the vehicle, being recognizable day and night and by identifying the model and / or the mark of said vehicle. Finally, it has the advantage of not dazzling an individual brought to view a projector according to the invention, this thanks to the incorporation of a small secondary reflector, initially used to perform the two previous functions.
- the detailed description is made with respect to a frame linked to a vehicle, and for which the X axis represents a longitudinal axis of the vehicle, the Y axis a transverse axis of the vehicle and the Z axis a vertical axis.
- a lighting and signaling device is generally mounted in a front projector of a motor vehicle.
- a vehicle headlight comprises a cavity in which is disposed a first mode of preferred embodiment of a lighting and signaling device 1 according to the invention, said device 1 comprising a main light-emitting diode 2, a secondary light-emitting diode 3, a main reflector 4 and an ellipsoidal secondary reflector 5.
- a light-emitting diode will be designated as LED ( Light Emitting Diode).
- the rear face of the cavity is partially delimited by the main reflector 4, which is shaped to ensure, in combination with the main LED 2, a lighting beam spread in a transverse direction Y of the vehicle.
- This main reflector 4 may be symmetrical to provide uniform illumination in front of the vehicle, or be asymmetrical to favor a right or left direction of said illumination in front of said vehicle.
- a main reflector 4 has a complex reflection surface, formed by an assembly of elementary sectors 6, each of said sectors 6 connecting to the immediately adjacent sector 6 by means of a generally vertical line 7.
- Each sector 6 is advantageously generated by a horizontal generatrix from which a set of vertical curves upwards then downwards.
- the horizontal generatrix is for example convex and its profile determines the horizontal distribution of the beam generated by the sector 6.
- the generatrices of the sectors 6 are chosen so that the rays coming from the source are reflected by the surface while being directed downwards in order to to form the cut, for example the cut of the code.
- the main LED 2 is placed on the optical axis of the main reflector 4 in front of said reflector 4, to provide illumination of the road, in code mode or in high beam mode.
- the secondary reflector 5 is embodied by an ellipsoidal wall representing a quarter of an ellipsoid, said wall having a curved and reflective inner surface.
- This reflecting inner surface has a vertical plane of symmetry extending along a longitudinal axis X of the vehicle.
- This secondary reflector 5 is placed in front of the main reflector 4 so that its reflective surface is oriented towards the reflecting surface of the main reflector 4.
- the secondary reflector 5 is located opposite the highest part of the main reflector 4, without ever emerging vertically from said main reflector 4.
- the secondary LED 3 is placed inside the secondary reflector 5, at its highest zone, and more precisely at the exact location of the first focus of the ellipsoid partially delimited by said secondary reflector 5.
- the secondary LED 3 consists of a rectangular parallelepiped body 8 and a light emitting element 9 coated with a protective dome emerging at the center of a face of said body 8, said source emitting a diverging light cone, of which Angular opening ⁇ is, in this example, substantially equal to 140 °.
- This secondary LED 3 is oriented in the secondary reflector 5 so that a fraction of the light beams that it emits in the cone angle ⁇ , is intercepted by said secondary reflector 5.
- this fraction is materialized by a fraction of cone, whose angular aperture ⁇ is inscribed in the cone of angle ⁇ , this angular aperture ⁇ being close in this example of 100 °.
- the secondary reflector 5 thus collects the majority of the light cone emitted by the secondary LED 3.
- the main LED 2 consists of a rectangular parallelepiped body 10, the light emitting element 11 of said main LED 2 emerging in the center of a face of said body 10.
- this main LED 2 is oriented in the cavity of the projector so that the light beams it emits sweep the entire space below the body 10 of said main LED 2, on an angular sector of 180 °.
- the main LED 2 and the secondary LED 3 are aligned in a horizontal plane.
- the two light emitting elements 9,11 of said LEDs 2,3 are aligned along a horizontal axis.
- the main LED 2 is located between the main reflector 4, and the assembly consisting of the secondary reflector 5 and the secondary LED 3. More specifically, the light emitting element 11 of the main diode 2 is placed at the second focus 12 of the secondary ellipsoidal reflector 5, in a longitudinal direction X of the vehicle, but is offset vertically with respect to said second focus 12. In fact, the light emitting element 11 is placed above this second dummy focus 12, the corresponding height offset at the height of a DRL beam. If the main reflector 4 is symmetrical, the light emitting element 11 of the main LED 2 and the second focus 12 are aligned along a vertical axis Z. If the main reflector 5 is asymmetrical, the light emitting element 11 and said second focus 12 are offset along a transverse axis Y of the vehicle.
- the beams 13 from the main LED 2 and which are intercepted by the main reflector 4 are returned to the bottom of the cutoff to ensure the lighting function of the vehicle.
- a tiny portion of the beams from said main LED 2 is intercepted by the secondary reflector 5, to then be reflected upward, without performing a specific function within the vehicle.
- the secondary reflector 5 in no way disturbs the lighting function produced by the main LED 2 in combination with the main reflector 4.
- the beams 14 coming from the secondary LED 3 and which directly impact the main reflector 4 are returned by the latter to the top of the vehicle, to ensure the component of the DRL function above the cut.
- the beams 15 from said secondary LED 3 and which are reflected a first time by the secondary reflector 5 and a second time by the main reflector 4, are returned to the bottom of the vehicle, to ensure component DRL function below the cut.
- a device comprising the main LED 2, the secondary LED 3, the main reflector 4 and the secondary reflector 5 as they are arranged in the first preferred embodiment described above, makes it possible to provide a vehicle lighting and signaling function with a common signature for said functions.
- secondary reflector 5 constituting the foremost part of the device 1 also serves to play the role of a cache whose function is to at least partially obscure the two LEDs 2,3 and to avoid an individual looking inside the projector to be dazzled.
- a second preferred embodiment of a device 100 according to the invention differs from the first mode described above, in that the secondary reflector 105 has a parabolic shape and no longer ellipsoidal.
- the main LED 102 and the main reflector 104 remain unchanged from the first embodiment, whether in terms of their intrinsic characteristics or their relative arrangement.
- the secondary reflector 105 is embodied by a curved parabolic wall 108, having a reflective inner surface.
- This curved wall 108 has a maximum height at its central portion 121, and a minimum height at each of its two ends 122 located on either side of said central zone 121, said height gradually decreasing between said portion central 121 and said ends 122.
- the reflective inner surface has a vertical plane of symmetry extending along a longitudinal axis X of the vehicle.
- This secondary reflector 105 is placed in front of the main reflector 104 so that its reflective surface is oriented towards the reflecting face of said main reflector 104.
- the secondary LED 103 is placed inside the secondary reflector 105, at its edge 120 on the higher, being parallel to said edge 120. In this way, the secondary LED 103 is inclined relative to the main LED 102 which is horizontal.
- the light beams coming from the main LED 102 and the secondary LED 103 have trajectories similar to those of the light beams described in FIG. figure 5 relative to the first embodiment, to provide a lighting function of the vehicle and a day signaling function of said vehicle having the same signature.
- the secondary reflector 105 also plays the role of an anti-glare mask.
- the secondary reflector can also be envisaged, the essential point being that it has a certain symmetry in order to correctly position the secondary LED that will be associated with it.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
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- Optics & Photonics (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
L'invention se rapporte à un dispositif (1) d'éclairage et de signalisation d'un véhicule, comprenant au moins une cavité délimitée par un réflecteur principal (4) définissant un axe optique, ladite cavité comportant au moins une source lumineuse principale (2) apte à éclairer une route en combinaison avec ledit réflecteur principal (4).The invention relates to a device (1) for illuminating and signaling a vehicle, comprising at least one cavity delimited by a main reflector (4) defining an optical axis, said cavity comprising at least one main light source ( 2) capable of illuminating a road in combination with said main reflector (4).
La principale caractéristique d'un dispositif d'éclairage selon l'invention est que ladite au moins une cavité contient une source lumineuse secondaire (3) et un réflecteur secondaire (5), ladite source secondaire (3) étant positionnée dans la cavité de manière à ce que le réflecteur secondaire (5,105) récupère le flux lumineux en provenance de ladite source secondaire (3), lesdites deux sources (2,3) et lesdits deux réflecteurs (4,5) étant agencés dans la cavité pour assurer à la fois une fonction d'éclairage et de signalisation du véhicule. The main characteristic of a lighting device according to the invention is that said at least one cavity contains a secondary light source (3) and a secondary reflector (5), said secondary source (3) being positioned in the cavity so the secondary reflector (5,105) recovers the light flux from said secondary source (3), said two sources (2,3) and said two reflectors (4,5) being arranged in the cavity to ensure both a function of lighting and signaling of the vehicle.
Description
L'invention se rapporte à un dispositif d'éclairage et de signalisation d'un véhicule. Généralement un véhicule, et notamment un véhicule automobile, est doté d'une source d'éclairage destinée à illuminer par temps sombre une route, afin de permettre à un conducteur de guider son véhicule avec sécurité, et une source lumineuse de signalisation de plus faible intensité, prévue pour informer les autres conducteurs de la présence dudit véhicule en plein jour. Plus spécifiquement, l'invention porte sur un dispositif d'éclairage et de signalisation amélioré d'un véhicule.The invention relates to a lighting and signaling device of a vehicle. In general, a vehicle, and in particular a motor vehicle, is provided with a source of illumination intended to illuminate a road in dark weather, in order to allow a driver to guide his vehicle with safety, and a weaker signaling light source. intensity, intended to inform other drivers of the presence of the vehicle in broad daylight. More specifically, the invention relates to an improved lighting and signaling device of a vehicle.
Habituellement la fonction de signalisation du véhicule est réalisée au moyen de feux de circulation diurne ou DRL (de l'anglais Daytime Running Lamps), qui est un dispositif impliquant une lumière blanche placée à l'avant du véhicule et qui s'allume automatiquement lorsque le véhicule se déplace vers l'avant, afin d'accroître la visibilité du véhicule dans des conditions de lumière de jour.Usually, the vehicle's signaling function is performed using daytime running lamps ( DRLs), which is a device that involves a white light on the front of the vehicle and turns on automatically when the vehicle moves forward, to increase visibility of the vehicle in daylight conditions.
Un tel dispositif de signalisation est actuellement réalisé sous différentes formes :
- soit une pluralité de diodes électroluminescentes ou LED (de l'anglais Light Emitting Diode) disposées selon une géométrie particulière,
- soit un guide de lumière,
- soit des miroirs et/ou des lentilles.
- a plurality of light emitting diodes (LEDs ) arranged in a particular geometry,
- a light guide,
- either mirrors and / or lenses.
Ce dispositif est indépendant et vient s'ajouter au dispositif d'éclairage prévu pour éclairer la route. Il en résulte que la coexistence de ces deux dispositifs distincts entraine un encombrement important au sein du véhicule, et en particulier au niveau des projecteurs avant dans lesquels ils sont généralement placés. De plus, puisque chacun de ces deux dispositifs se fonde sur un réflecteur qui lui est spécifique, il est nécessaire de fabriquer deux réflecteurs distincts, dont le temps d'usinage global est long et donc plus coûteux. Enfin, l'éclairage de signalisation produit le jour est différent de celui qui est généré la nuit pour éclairer la route, si bien que l'éclairage du véhicule ne constitue pas un signe distinctif et reconnaissable en toutes circonstances, permettant d'identifier le modèle et/ou la marque dudit véhiculeThis device is independent and is added to the lighting device designed to illuminate the road. As a result, the coexistence of these two separate devices causes significant congestion within the vehicle, particularly at the front projectors in which they are generally placed. In addition, since each of these two devices is based on a reflector which is specific to it, it is necessary to manufacture two separate reflectors, the overall machining time is long and therefore more expensive. Finally, the signaling light produced during the day is different from that generated at night to illuminate the road, so that the lighting of the vehicle does not constitute a distinguishing and recognizable sign in all circumstances, making it possible to identify the model and / or the mark of the said vehicle
Les dispositifs d'éclairage et de signalisation d'un véhicule selon l'invention permettent de remédier aux inconvénients relevés dans l'état de la technique.The lighting and signaling devices of a vehicle according to the invention make it possible to remedy the disadvantages noted in the state of the art.
L'invention a pour objet un dispositif d'éclairage et de signalisation d'un véhicule, comprenant au moins une cavité délimitée par un réflecteur principal définissant un axe optique, ladite cavité comportant au moins une source lumineuse principale apte à éclairer une route en combinaison avec ledit réflecteur principal.The subject of the invention is a device for illuminating and signaling a vehicle, comprising at least one cavity delimited by a main reflector defining an optical axis, said cavity comprising at least one main light source capable of illuminating a road in combination with said main reflector.
La principale caractéristique d'un dispositif d'éclairage et de signalisation selon l'invention, est que ladite au moins une cavité contient une source lumineuse secondaire et un réflecteur secondaire, ladite source secondaire étant positionnée dans la cavité de manière à ce que le réflecteur secondaire récupère un partie du flux lumineux en provenance de ladite source secondaire, lesdites deux sources et lesdits deux réflecteurs étant agencés dans la cavité pour assurer à la fois une fonction d'éclairage et de signalisation du véhicule. Le principe de l'invention consiste à adjoindre à la source lumineuse principale, une source lumineuse secondaire associée à un réflecteur secondaire, de manière à ce que les deux sources puissent assurer une fonction d'éclairage par temps sombre ou de nuit, et une fonction de signalisation de jour du véhicule. Selon une réalisation de l'invention, la source lumineuse secondaire émet un faisceau lumineux de forme conique, soit un cône lumineux, le réflecteur secondaire collectant la majorité du cône lumineux.The main characteristic of a lighting and signaling device according to the invention is that said at least one cavity contains a secondary light source and a secondary reflector, said secondary source being positioned in the cavity so that the reflector secondary recuperates a portion of the luminous flux from said secondary source, said two sources and said two reflectors being arranged in the cavity to provide both a lighting function and vehicle signaling. The principle of the invention consists in adding to the main light source, a secondary light source associated with a secondary reflector, so that the two sources can provide a lighting function in dark weather or night, and a function vehicle daytime signaling. According to one embodiment of the invention, the secondary light source emits a light beam of conical shape, or a light cone, the secondary reflector collecting the majority of the light cone.
Selon une réalisation de l'invention, pour éclairer la route, le réflecteur principal est conformé pour renvoyer les rayons de la source lumineuse principale en dessous d'une coupure majoritairement horizontale afin de ne pas éblouir les automobilistes qui arrivent en face. Selon une réalisation de l'invention le réflecteur principal comprend un foyer, les rayons provenant de ce foyer et atteignant directement le réflecteur principal, étant réfléchis par le réflecteur principal en dessous d'une coupure majoritairement horizontale. Selon une réalisation de l'invention, ce réflecteur principal permet également de réfléchir les rayons directement issus de la source secondaire au-dessus de ladite coupure, et les rayons issus de ladite source secondaire et réfléchis une première fois par le réflecteur secondaire, au-dessous de cette coupure.According to one embodiment of the invention, to illuminate the road, the main reflector is shaped to return the rays of the main light source below a cut predominantly horizontal so as not to dazzle drivers who arrive in front. According to one embodiment of the invention the main reflector comprises a focus, the rays coming from this focus and directly reaching the main reflector, being reflected by the main reflector below a predominantly horizontal cut. According to an embodiment of the invention, this main reflector also makes it possible to reflect the rays directly coming from the secondary source above said cutoff, and the rays originating from said secondary source and reflected a first time by the secondary reflector, below this cut.
Selon une réalisation de l'invention, le réflecteur principal possède une surface de réflexion complexe, formée par un assemblage de secteurs élémentaires, chacun desdits secteurs se raccordant au secteur immédiatement voisin au moyen d'une ligne globalement verticale. Chaque secteur est avantageusement généré par une génératrice horizontale d'où part un ensemble de courbes verticales vers le haut puis vers le bas. La génératrice horizontale est par exemple convexe et son profil détermine la répartition horizontale du faisceau généré par le secteur. Les génératrices des secteurs sont choisies pour que les rayons issus de la source soient réfléchis par la surface en étant orienté vers le bas afin de former la coupure, par exemple la coupure du code. Les courbes verticales sont par exemple des arcs de parabole. Les foyers de chaque parabole vers le haut sont en général distincts des foyers des paraboles partant vers le bas. La LED principale est placée sur l'axe optique du réflecteur principal devant ledit réflecteur, pour assurer un éclairage de la route, en mode code ou en mode feu de route.According to one embodiment of the invention, the main reflector has a complex reflection surface formed by an assembly of elementary sectors, each of said sectors being connected to the immediately adjacent sector by means of a generally vertical line. Each sector is advantageously generated by a horizontal generator from which a set of vertical curves upwards then downwards. The horizontal generatrix is for example convex and its profile determines the horizontal distribution of the beam generated by the sector. The generatrices of the sectors are chosen so that the rays coming from the source are reflected by the surface while being directed downwards to form the cut, for example the cleavage of the code. Vertical curves are, for example, parabolic arcs. The foci of each parable upward are generally distinct from the foci of the parables going downward. The main LED is placed on the optical axis of the main reflector in front of said reflector, to provide illumination of the road, in code mode or in high beam mode.
Selon une réalisation de l'invention, le réflecteur secondaire sert de cache permettant de masquer à la vue au moins partiellement les deux sources lumineuses. En effet, lorsque le dispositif selon l'invention est placé dans un véhicule, et plus spécifiquement dans un projecteur avant, le réflecteur principal tapisse le fond arrière dudit projecteur et le réflecteur secondaire est placé à l'avant des deux sources lumineuses, évitant à un individu placé à l'avant dudit véhicule et regardant ledit projecteur d'être ébloui par les deux sources lumineuses.According to one embodiment of the invention, the secondary reflector serves as a cache making it possible to mask at least partially the two light sources. Indeed, when the device according to the invention is placed in a vehicle, and more specifically in a front projector, the main reflector lining the rear background of said projector and the secondary reflector is placed in front of the two light sources, avoiding an individual placed in front of said vehicle and watching said projector to be dazzled by the two light sources.
Avantageusement, les sources lumineuses principale et secondaire sont fixes, et non orientables sur commande. La source lumineuse principale et la source lumineuse secondaire peuvent être chacune unitaires, ou bien être constituées d'une pluralité de sources de petites dimensions. Une source lumineuse unitaire peut par exemple être une diode électroluminescente, encore appelée LED, avec un seul élément photoémetteur. Une source lumineuse constituée d'une pluralité de sources de petites dimensions peut par exemple être une diode électroluminescente comprenant plusieurs éléments photoémetteurs.Advantageously, the main and secondary light sources are fixed and non-steerable on command. The main light source and the secondary light source may each be unitary, or consist of a plurality of small sources. A source unitary luminous unit may for example be a light-emitting diode, also called LED, with a single light-emitting element. A light source consisting of a plurality of small sources may for example be a light emitting diode comprising a plurality of light emitting elements.
Le réflecteur principal peut être symétrique ou asymétrique. Préférentiellement, le projecteur principal est conformé pour assurer en combinaison avec la source lumineuse principale un éclairage de type «Flat» (terme anglais signifiant plat), à savoir un faisceau éclairant sous une coupure essentiellement plate, par exemple un faisceau antibrouillard ou encore un faisceau qui superposé à un faisceau à coupure oblique permet de réaliser un faisceau de croisement.The main reflector may be symmetrical or asymmetrical. Preferably, the main projector is shaped to ensure in combination with the main light source a "flat" type of lighting , ie a beam illuminating under a substantially flat cut, for example a fog or beam beam. which superimposed on an oblique cut beam makes it possible to produce a passing beam.
Avantageusement, la face réfléchissante du réflecteur principal et la face réfléchissante du réflecteur secondaire sont orientées l'une vers l'autre.Advantageously, the reflective face of the main reflector and the reflecting face of the secondary reflector are oriented toward each other.
De façon préférentielle, la source lumineuse principale et la source lumineuse secondaire sont situées entre le réflecteur principal et le réflecteur secondaire. De cette manière, les faisceaux lumineux issus de la source lumineuse principale et les faisceaux lumineux issus de la source lumineuse secondaire pourront se réfléchir à la fois sur le réflecteur principal et sur le réflecteur secondaire.Preferably, the main light source and the secondary light source are located between the main reflector and the secondary reflector. In this way, the light beams from the main light source and the light beams from the secondary light source can be reflected on both the main reflector and the secondary reflector.
Préférentiellement, le réflecteur secondaire est incurvé et délimite un espace, la source lumineuse secondaire étant placée au niveau dudit espace et la source lumineuse principale étant placée entre ladite source lumineuse secondaire et le réflecteur principal. En effet, le réflecteur secondaire est avantageusement constitué par une paroi incurvée pouvant être ouverte ou fermée, ladite paroi délimitant un espace interne. La source lumineuse secondaire peut ainsi se retrouver à l'intérieur dudit espace interne, ou à l'extérieur de cette paroi incurvée et au droit dudit espace.Preferably, the secondary reflector is curved and delimits a space, the secondary light source being placed at said space and the main light source being placed between said secondary light source and the main reflector. Indeed, the secondary reflector is advantageously constituted by a curved wall that can be open or closed, said wall delimiting an internal space. The secondary light source can thus be found inside said internal space, or outside this curved wall and at the right of said space.
De façon avantageuse, dans un repère orthonormé défini par trois directions orthogonales dans l'espace, le réflecteur secondaire est focalisé sur le foyer du réflecteur principal selon deux de ces directions et décalé selon la direction restante. Préférentiellement cette direction restante est la direction verticale. Par exemple, lorsque le réflecteur principal s'étend vers la bas, en dessous de la source lumineuse, la source principale étant positionnée en haut du réflecteur principal et émettant vers le bas, un ou le foyer du réflecteur secondaire est verticalement décalé et au-dessous du centre de la LED principale. En revanche, il n'y a pas de décalage transversal ou longitudinal.Advantageously, in an orthonormal coordinate system defined by three orthogonal directions in space, the secondary reflector is focused on the focus of the main reflector in two of these directions and shifted according to the remaining direction. Preferably, this remaining direction is the vertical direction. For example, when the main reflector extends downward below the light source, the main source being positioned at the top of the main reflector and emitting downward, one or the focus of the secondary reflector is vertically offset and below the center of the main LED. On the other hand, there is no transverse or longitudinal offset.
Avantageusement, la source lumineuse principale et la source lumineuse secondaire sont représentées chacune par une diode électroluminescente. Ce type de source lumineuse est particulièrement performant en matière d'intensité lumineuse, tout en ayant un encombrement restreint.Advantageously, the main light source and the secondary light source are each represented by a light emitting diode. This type of light source is particularly effective in terms of light intensity, while having a small footprint.
Selon un premier mode de réalisation préféré d'un dispositif selon l'invention, le réflecteur secondaire est ellipsoïdal et est apte à renvoyer les faisceaux issus de la diode secondaire qui l'impactent, systématiquement vers le réflecteur principal. Préférentiellement, le réflecteur secondaire est une paroi délimitant un quart d'ellipsoïde, ladite paroi présentant un plan de symétrie.According to a first preferred embodiment of a device according to the invention, the secondary reflector is ellipsoidal and is adapted to return the beams from the secondary diode which impact systematically to the main reflector. Preferably, the secondary reflector is a wall delimiting a quarter of ellipsoid, said wall having a plane of symmetry.
Selon une réalisation de l'invention, la diode secondaire et la diode principale sont alignées sur un même plan. Cette configuration particulière est facile à réaliser, et permet un contrôle de la qualité du montage des deux diodes grâce à un simple coup d'oeil. De plus, cela facilite le montage des LEDs sur une même carte de circuit imprimé. Lorsque le dispositif selon l'invention est placé dans un projecteur avant de véhicule, ledit plan d'alignement est horizontal.According to one embodiment of the invention, the secondary diode and the main diode are aligned on the same plane. This particular configuration is easy to perform, and allows a quality control of the mounting of the two diodes at a glance. In addition, it facilitates the mounting of the LEDs on the same printed circuit board. When the device according to the invention is placed in a vehicle headlight, said alignment plane is horizontal.
De façon préférentielle, la diode principale est centrée sur l'axe optique du réflecteur principal.Preferably, the main diode is centered on the optical axis of the main reflector.
Préférentiellement, la diode secondaire est placée au niveau du premier foyer du réflecteur secondaire. De façon préférentielle, la diode secondaire est placée exactement au premier foyer du réflecteur secondaire, et est donc focalisée par rapport audit réflecteur.Preferably, the secondary diode is placed at the first focus of the secondary reflector. Preferably, the secondary diode is placed exactly at the first focus of the secondary reflector, and is therefore focused with respect to said reflector.
De façon avantageuse, le réflecteur ellipsoïdal secondaire dans un repère orthonormé défini par trois directions orthogonales dans l'espace, le deuxième foyer du réflecteur secondaire est focalisé sur la diode principale selon deux de ces directions et décalé selon une direction restante, perpendiculaire à l'axe optique. Préférentiellement cette direction restante est la direction verticale. Par exemple, lorsque le réflecteur principal s'étend vers la bas, en dessous de la source lumineuse, la source principale étant positionnée en haut du réflecteur principal et émettant vers le bas, un ou le foyer du réflecteur secondaire est verticalement décalé et au-dessous du centre de la LED principale. En revanche, il n'y a pas de décalage transversal ou longitudinal.Advantageously, the secondary ellipsoidal reflector in an orthonormal coordinate system defined by three orthogonal directions in space, the second focus of the secondary reflector is focused on the main diode along two of these directions and offset in a direction remaining, perpendicular to the optical axis. Preferably, this remaining direction is the vertical direction. For example, when the main reflector extends downward below the light source, the main source being positioned at the top of the main reflector and emitting downward, one or the focus of the secondary reflector is vertically offset and below the center of the main LED. On the other hand, there is no transverse or longitudinal offset.
Selon un deuxième mode de réalisation préféré d'un dispositif selon l'invention, le réflecteur secondaire est parabolique et est apte à renvoyer les faisceaux issus de la diode secondaire qui l'impactent, systématiquement vers le réflecteur principal. Préférentiellement, le réflecteur secondaire est une paroi incurvée présentant un plan de symétrie.According to a second preferred embodiment of a device according to the invention, the secondary reflector is parabolic and is able to return the beams from the secondary diode which impact systematically towards the main reflector. Preferably, the secondary reflector is a curved wall having a plane of symmetry.
Avantageusement, la diode secondaire et la diode principale sont inclinées l'une par rapport à l'autre. Lorsque le dispositif selon l'invention se retrouve dans un projecteur de véhicule, la diode principale est située dans un plan horizontal et la diode secondaire est parallèle à un bord incliné dudit réflecteur secondaire.Advantageously, the secondary diode and the main diode are inclined with respect to each other. When the device according to the invention is found in a vehicle headlight, the main diode is located in a horizontal plane and the secondary diode is parallel to an inclined edge of said secondary reflector.
L'invention a pour deuxième objet un projecteur de véhicule comprenant un dispositif d'éclairage et de signalisation selon l'invention.The subject of the invention is a vehicle headlamp comprising a lighting and signaling device according to the invention.
Le dispositif d'éclairage et de signalisation selon l'invention présente l'avantage d'être simplifié et peu encombrant, dans la mesure où c'est la même cavité du projecteur qui assure les fonctions d'éclairage et de signalisation du véhicule sans avoir subi une modification structurelle de fond. Il a de plus l'avantage de constituer une signature spécifique du véhicule, en étant reconnaissable de jour comme de nuit et en permettant d'identifier le modèle et/ou la marque dudit véhicule. Il présente enfin l'avantage de ne pas éblouir un individu amené à regarder un projecteur selon l'invention, ceci grâce à l'incorporation d'un réflecteur secondaire de petite dimension, utilisé initialement pour assurer les deux fonctions précédentes.The lighting and signaling device according to the invention has the advantage of being simplified and compact, inasmuch as it is the same cavity of the headlamp which provides the lighting and signaling functions of the vehicle without having underwent a structural change of background. It has the additional advantage of constituting a specific signature of the vehicle, being recognizable day and night and by identifying the model and / or the mark of said vehicle. Finally, it has the advantage of not dazzling an individual brought to view a projector according to the invention, this thanks to the incorporation of a small secondary reflector, initially used to perform the two previous functions.
On donne, ci-après, une description détaillée de deux modes de réalisation préférés d'un dispositif d'éclairage et de signalisation selon l'invention, en se référant aux
- La
figure 1 est une vue en perspective d'un premier mode de réalisation préféré d'un dispositif d'éclairage et de signalisation selon l'invention, - La
figure 2 est une vue agrandie en perspective de dessus du dispositif de lafigure 1 , - La
figure 3 est une vue schématique de coté d'une diode principale, d'une diode secondaire et d'un réflecteur du dispositif de lafigure 1 , - La
figure 4 est une vue en perspective de dessous des trois principaux éléments illustrés à lafigure 3 , - La
figure 5 est une vue schématique de coté du dispositif de lafigure 1 , montrant les trajectoires des différents faisceaux lumineux issus de la diode principale et de la diode secondaire. - La
figure 6 est une vue en perspective d'un deuxième mode de réalisation préféré d'un dispositif d'éclairage et de signalisation selon l'invention, - La
figure 7 est une vue de coté du dispositif de lafigure 6 .
- The
figure 1 is a perspective view of a first preferred embodiment of a lighting and signaling device according to the invention, - The
figure 2 is an enlarged perspective view from above of the device of thefigure 1 , - The
figure 3 is a schematic side view of a main diode, a secondary diode and a reflector of the device of thefigure 1 , - The
figure 4 is a perspective view from below of the three main elements illustrated in thefigure 3 , - The
figure 5 is a schematic side view of the device of thefigure 1 , showing the trajectories of the different light beams from the main diode and the secondary diode. - The
figure 6 is a perspective view of a second preferred embodiment of a lighting and signaling device according to the invention, - The
figure 7 is a side view of the device of thefigure 6 .
Afin de faciliter la compréhension de l'invention, la description détaillée est effectuée par rapport à un référentiel lié à un véhicule, et pour lequel l'axe X matérialise un axe longitudinal du véhicule, l'axe Y un axe transversal du véhicule et l'axe Z un axe vertical.In order to facilitate the understanding of the invention, the detailed description is made with respect to a frame linked to a vehicle, and for which the X axis represents a longitudinal axis of the vehicle, the Y axis a transverse axis of the vehicle and the Z axis a vertical axis.
Un dispositif d'éclairage et de signalisation selon l'invention est généralement monté dans un projecteur avant d'un véhicule automobile.A lighting and signaling device according to the invention is generally mounted in a front projector of a motor vehicle.
En se référant aux
En se référant aux
Comme l'illustrent les
En se référant aux
En se référant à la
En se référant aux
En se référant à la
En se référant aux
En se référant à la
Ainsi, un dispositif selon l'invention, regroupant la LED principale 2, la LED secondaire 3, le réflecteur principal 4 et le réflecteur secondaire 5 tels qu'ils sont agencés dans le premier mode de réalisation préféré décrit ci-avant, permet d'assurer une fonction d'éclairage et de signalisation du véhicule avec une signature commune pour lesdites fonctions. De plus, le réflecteur secondaire 5 constituant la partie la plus en avant du dispositif 1, permet également de jouer le rôle d'un cache ayant pour fonction d'occulter au moins partiellement les deux LED 2,3 et d'éviter à un individu regardant l'intérieur du projecteur d'être ébloui.Thus, a device according to the invention, comprising the
En se référant aux
Pour ce deuxième mode de réalisation préféré, le réflecteur secondaire 105 est matérialisée par une paroi 108 parabolique incurvée, comportant une surface interne réfléchissante. Cette paroi incurvée 108 présente une hauteur maximale au niveau de sa partie centrale 121, et une hauteur minimale au niveau de chacune de ses deux extrémités 122 situées de par et d'autre de ladite zone centrale 121, ladite hauteur se réduisant progressivement entre ladite partie centrale 121 et lesdites extrémités 122. La surface interne réfléchissante possède un plan de symétrie vertical s'étendant selon un axe longitudinal X du véhicule. Ce réflecteur secondaire 105 est placé devant le réflecteur principal 104 de sorte que sa surface réfléchissante soit orientée vers la face réfléchissante dudit réflecteur principal 104. La LED secondaire 103 est placée à l'intérieur du réflecteur secondaire 105, au niveau de son bord 120 le plus haut, en étant parallèle audit bord 120. De cette manière, la LED secondaire 103 se retrouve inclinée par rapport à la LED principale 102 qui est horizontale.For this second preferred embodiment, the
Les faisceaux lumineux issus de la LED principale 102 et de la LED secondaire 103 ont des trajectoires analogues à celles des faisceaux lumineux décrits à la
Il peut également être envisagé d'autres formes et de géométries pour le réflecteur secondaire, l'essentiel étant qu'il possède une certaine symétrie afin de placer correctement la LED secondaire qui lui sera associée.Other forms and geometries for the secondary reflector can also be envisaged, the essential point being that it has a certain symmetry in order to correctly position the secondary LED that will be associated with it.
Claims (14)
Applications Claiming Priority (1)
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FR1354109A FR3005342B1 (en) | 2013-05-03 | 2013-05-03 | DEVICE FOR LIGHTING AND SIGNALING A VEHICLE |
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EP2799763A1 true EP2799763A1 (en) | 2014-11-05 |
EP2799763B1 EP2799763B1 (en) | 2020-11-18 |
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EP14165665.2A Active EP2799763B1 (en) | 2013-05-03 | 2014-04-23 | Vehicle headlamp |
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FR (1) | FR3005342B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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EP3124853A1 (en) * | 2015-07-31 | 2017-02-01 | Valeo Vision | Lighting and/or signalling device for a vehicle |
Families Citing this family (1)
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JP2016181388A (en) * | 2015-03-24 | 2016-10-13 | スタンレー電気株式会社 | Lighting appliance of vehicle |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1694485A (en) * | 1926-01-28 | 1928-12-11 | Newland Kelly | Vehicle head lamp |
EP0579184A1 (en) * | 1992-07-17 | 1994-01-19 | MAGNETI MARELLI S.p.A. | Vehicle, in particular motor vehicle, headlight |
EP1970619A1 (en) * | 2007-03-14 | 2008-09-17 | Valeo Vision | Optical module for headlights of an automobile |
EP2075501A2 (en) * | 2007-12-27 | 2009-07-01 | Koito Manufacturing Co., Ltd. | Vehicle headlamp |
EP2465726A1 (en) * | 2010-12-14 | 2012-06-20 | Koito Manufacturing Co., Ltd. | Vehicle lamp |
-
2013
- 2013-05-03 FR FR1354109A patent/FR3005342B1/en active Active
-
2014
- 2014-04-23 EP EP14165665.2A patent/EP2799763B1/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1694485A (en) * | 1926-01-28 | 1928-12-11 | Newland Kelly | Vehicle head lamp |
EP0579184A1 (en) * | 1992-07-17 | 1994-01-19 | MAGNETI MARELLI S.p.A. | Vehicle, in particular motor vehicle, headlight |
EP1970619A1 (en) * | 2007-03-14 | 2008-09-17 | Valeo Vision | Optical module for headlights of an automobile |
EP2075501A2 (en) * | 2007-12-27 | 2009-07-01 | Koito Manufacturing Co., Ltd. | Vehicle headlamp |
EP2465726A1 (en) * | 2010-12-14 | 2012-06-20 | Koito Manufacturing Co., Ltd. | Vehicle lamp |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3124853A1 (en) * | 2015-07-31 | 2017-02-01 | Valeo Vision | Lighting and/or signalling device for a vehicle |
FR3039624A1 (en) * | 2015-07-31 | 2017-02-03 | Valeo Vision | LIGHTING AND / OR SIGNALING DEVICE FOR VEHICLE |
Also Published As
Publication number | Publication date |
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FR3005342A1 (en) | 2014-11-07 |
FR3005342B1 (en) | 2017-08-11 |
EP2799763B1 (en) | 2020-11-18 |
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