EP2199662B1 - Verbesserter Beleuchtungsmodul für Kraftfahrzeuge - Google Patents

Verbesserter Beleuchtungsmodul für Kraftfahrzeuge Download PDF

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Publication number
EP2199662B1
EP2199662B1 EP09179737.3A EP09179737A EP2199662B1 EP 2199662 B1 EP2199662 B1 EP 2199662B1 EP 09179737 A EP09179737 A EP 09179737A EP 2199662 B1 EP2199662 B1 EP 2199662B1
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EP
European Patent Office
Prior art keywords
deflector
point
lighting module
accordance
curvature
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Not-in-force
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EP09179737.3A
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English (en)
French (fr)
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EP2199662A1 (de
Inventor
Pierre Albou
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Valeo Vision SAS
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Valeo Vision SAS
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/04—Optical design
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141—Light emitting diodes [LED]
    • F21S41/147—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device
    • F21S41/148—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device the main emission direction of the LED being perpendicular to the optical axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/25—Projection lenses
    • F21S41/26—Elongated lenses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30—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
    • F21S41/36—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
    • F21S41/40—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades
    • F21S41/43—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades characterised by the shape thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
    • F21V13/12—Combinations of only three kinds of elements

Definitions

  • the invention relates to a lighting module for a motor vehicle headlamp, giving a cut-off light beam, of the kind comprising a concave reflector, at least one light source arranged in the concavity of the reflector to illuminate, in particular at least one upwards, and a lens situated in front of the reflector and the light source, the reflector being associated with a folder, in particular a horizontal folder, the upper surface of which is reflective for folding the beam coming from the reflector, said folder having an edge of clean front end to form the cut in the lighting beam.
  • folding is meant a substantially flat and reflective plate.
  • the patent application EP 1 884 708 A1 also describes a lighting module comprising a folder.
  • the object of the invention is, above all, to propose a module of the kind defined previously which makes it possible to obtain a beam in which the distribution of the light is improved in order to increase the illumination of the angular extreme zones, in particular those located at about ⁇ 35 ° C. ° on either side of the optical axis, without reducing the illumination of the central zone located substantially between + 10 ° and -10 ° on either side of the optical axis.
  • the invention also aims to provide a sufficiently improved lighting module to constitute alone a fog lamp meeting the requirements imposed.
  • the subject of the invention is a lighting module as defined by claims 1 to 15.
  • the curvature of the front edge of the folder has, in particular, at least a maximum angularly located between the optical axis of the module and an angular limit of the beam.
  • the curvature of the front edge of the folder has a maximum on each side of the optical axis.
  • the front edge of the folder is symmetrical with respect to this optical axis.
  • the curvature of the front edge of the folder has a secondary maximum located on or substantially on the optical axis.
  • the wave surface coming from the source is comparable to a spherical wave surface
  • the maximum curvature of the front edge of the folder is selected so that the illumination of the extreme angular zones of the beam, in particular in directions greater than or equal to ⁇ 35 ° on either side of the optical axis, is reinforced, without reducing the illumination of the central area.
  • the surface of the reflector is such that light rays coming from the source and falling at points situated on the intersection of this surface and a normal vertical plane at the front edge of the folder, but separated from the source, are reflected in this vertical plane so as to converge at a point located at the intersection of the vertical plane and the edge of the folder.
  • the lighting module is provided so that the illumination in the central zone between -10 ° and + 10 ° on either side of the optical axis is maintained with respect to a basic module whose folder would have a circular front edge of radius equal to the mean radius of curvature of the front edge, while the areas located at -35 ° and + 35 ° on either side of the optical axis, and corresponding to lines listed 9 -1 and 9-2 according to the R19-3 standard, have a higher illumination than that obtained with said basic module.
  • the cut-off beam obtained is flat-cut, in particular being chosen between an anti-fog beam and a flat-cut code beam portion.
  • the invention also relates to a projector comprising at least one module as defined above.
  • the module 1 comprises a concave reflector 2, at least one light source S arranged in the concavity of the reflector to illuminate at least upwards, and a lens 3 located in front of the source S and the reflector 2, in the direction of propagation of the light beam:
  • the reflector 2 is associated with a folder 4, consisting of a flat reflecting plate, horizontal as shown on Fig. 1 .
  • the folder 4, of which at least the upper face is reflective, has a front end edge 5 suitable for forming the cut in the lighting beam.
  • the folder 4 is horizontal, the cutting of the beam is horizontal and the illuminated area is located below a horizontal line.
  • the light source S is advantageously substantially punctual, in particular formed by a light-emitting diode enveloped by a globe or a hemispherical capsule, this diode having a light-scattering axis substantially orthogonal to the folder 4, and illuminating upwards.
  • the front edge of the folder is given the shape of a plane curve with variable curvature. , whose curvature at a point is a continuous function of the distance x, or lateral coordinate, from this point to the optical axis Y, for the point considered.
  • this part 5a corresponds to a circular arc of constant radius, centered on the optical axis Y.
  • the ends of the arc 5a are connected, respectively, to an arc 5b1, 5b2 having a higher curvature.
  • the radius of curvature (inverse of the curvature) of the arcs 5b1, 5b2 is smaller than that of the central part 5a.
  • a portion 5c1, 5c2 provides the connection between the ends of the zones 5b1, 5b2 with strong curvature with end arcs 5d1, 5d2 convex forward, having a curvature less than or equal to that of the central portion 5a.
  • the intermediate zones 5c1, 5c2 are of variable convexity with respect to the adjacent zones. All of these areas “recedes" with respect to the circle of radius Ra as represented in figure 5 .
  • Areas with a high curvature 5b1, 5b2 make it possible to spread the beam laterally and to reinforce the illumination in the extreme angular zones, for example at ⁇ 35 ° on either side of the optical axis Y, by decreasing the intensities in the intermediate zones, and without affecting the central part of the beam whose illumination mainly depends on the central zone 5a of the curve.
  • the area of the curve corresponding to the angles of the lines 8 according to the figure 6 5b) are small, the angles evolve rapidly with x, because of the strong curvature, so that there is more room for zones 5d, where the angles "more slowly” depending on x.
  • the central portion of the beam generally corresponds to an angle of ⁇ 10 ° on either side of the optical axis and the angular extent of the central portion 5a of the folder is sufficient to ensure the desired intensity in the range ⁇ 10 °.
  • the figure 4 represents the position of the centers of curvature for the different zones represented in figure 5 .
  • C is the circle of radius Ra.
  • O is the center of curvature for area 5a of radius Ra.
  • O1 is the center of curvature for zone 5d2 of radius Rd.
  • 02 is the center of curvature for the point of minimum radius of curvature (Rb), a point located at the end of zone 5b2.
  • Rb minimum radius of curvature
  • Fig. 5 illustrates the variation of the radius of curvature R at a point of the curve 5, as a function of its lateral distance, that is to say its distance x to the optical axis, range on the abscissa.
  • the radius R carried on the ordinate, corresponds to the inverse of the curvature. It appears that the radius R passes through two minimum values Rb, on either side of the optical axis, corresponding to the points of greatest curvature of parts 5b1, 5b2.
  • the central portion has a radius of curvature Ra constant in the example and the end parts a higher radius of curvature Rd also constant.
  • the reflector 2 is determined to transform a spherical wave surface from the light source S into a wave surface returning to the curve 5 of the edge of the folder.
  • Folder edge 5 is a solution of a differential equation involving the radius of curvature R (x) as discussed further, which solution can be found numerically by choosing an arbitrary point of the edge 5.
  • the position from the source S being known, we take the point My ( Fig.2 ) of the edge belonging to the optical axis Y of the module, which axis passes through the center of the source; this reduces the choice of the point of passage to that of a simple real parameter, similar to the distance between foci in an ellipsoid.
  • the reflector 2 is determined by a family of curves 2m, each curve 2m corresponding to the intersection of the reflector with a plane Em normal to the edge 5 at a current point M. Each curve 2m is located in a plane Em. The family of the curves 2m is obtained by moving the plane Em perpendicular to the edge 5.
  • a 2m curve must have the following property.
  • the points P, P1 are located on the curve 2m, which is such that the rays i, i1 are reflected along radii r, r1 pointing towards the point M of the edge 5.
  • the rays reflecting r, r1 are therefore contained in the plane Em.
  • the lens 3 can be determined as follows.
  • the section, or intersection, 3Em of the lens 3 with the plane Em defined above, corresponds to the section of a stigmatic lens between the point M of the folding edge 5 of the folder and the infinite, this plane containing the axis of the stigmatic lens.
  • This section 3Em is delimited by two dioptres: a diopter of entry 3Eme, and a dioptre of exit 3Ems.
  • the material, glass or plastic-transparent material, of the section 3Em is between these two diopters.
  • this input diopter is constituted by a circular arc in the plane Em, convex towards the rear, of center ⁇ ( Fig.3 ) in the plane of the bender 5.
  • the output diopter 3Ems is calculated so that a light ray u1, coming out of the lens 3 and coming from an incident ray q1 coming from the point M, is parallel to the horizontal plane of the folder 5.
  • the lens 3 could be parameterized in the same way as the reflector, but a mesh in (x, h), h being the height of the points on the input face of the lens (see Fig. 2 and 3 ) allows a simpler calculation.
  • the lens 3 is not revolution, especially around a vertical axis.
  • Fig. 6 schematically illustrates the network of isolux curves obtained on a screen, generally at a distance of 25 m, with a module according to the invention.
  • the illumination in the central zone between -10 ° and + 10 ° on either side of the optical axis is not decreased compared to a module whose folder would have a circular front edge of radius equal to the radius means of curvature of the edge 5 according to the invention.
  • the zones situated approximately at -35 ° and + 35 ° on either side of the optical axis, and corresponding to the lines listed 9-1 and 9-2 according to the R19-3 standard, have a higher illuminance. higher than that of a module with a folding machine in an arc. Areas in which light has been taken to be transferred to lines 9-1 and 9-2 correspond to substantially at intermediate lines 8-1 and 8-2 between the central zone and the extreme zones.
  • the invention thus allows optimization, in particular by the choice of R (x) from which the curve f (x) describing the front edge 5 of the folder is deduced, and offers greater flexibility.
  • the optimization can result from comparative calculations made with different equations f (x) for curve 5.
  • a module according to the invention can also serve as a basic module for a code projector.
  • the angle ⁇ designates the angle between MI and the horizontal.
  • ⁇ designates the center of the arc forming the input diopter 3Eme, ⁇ being located in the plane of the folder.
  • the angle between ⁇ I and the horizontal is designated ⁇ .
  • n refractive index of the lens material 3 angle of incidence: ⁇ + ⁇ refraction angle: ⁇ not
  • the figure 10 which represents the curve 5 in plan view, represents the trace of the plane normal to the points M of coordinates x 1 and x o
  • ⁇ (x) remains low (in particular less than 3.5 °)
  • the beam is improved without compromising compliance with the standards, in particular those concerning fog lamps.
  • improved beam is understood here to mean that it is possible to increase the amount of light close to the vehicle at high lateral angles, a light that is more useful to the driver than distant light.
  • the lens 3 ' can be determined as follows:
  • the output diopter 3Ems' is calculated so that the light ray u1 'coming out of the lens 3' and coming from an incident ray q1 coming from the point M makes an angle ⁇ (x) with the horizontal plane of the folder 5.
  • the calculation example for the lens 3 ' has the following modifications with respect to the example according to the first variant detailed above: as for the previous example, the point I is a current point which is in a plane perpendicular to the curve 5 passing through any point M 'thereof of lateral coordinate x.
  • the lighting module is such that, for any plane perpendicular to the edge of the folder 5 at a point M, the intersection of the lens 3 with said plane is the section of a stigmatic lens between point M and infinity, the direction of emergent rays making an angle ⁇ with the plane of the folder, continuous function angle of the lateral coordinate (x) of said point M.
  • the function ⁇ (x) is constant or increasing as a function of the lateral coordinate (x) of the point M.
  • the function ⁇ (x) is constant and zero between the lateral coordinates of the points of the edges of the folder located on either side of a vertical plane containing the optical axis (Y) of the module, with preferably the angle of the normal planes at the edge of the folder passing through these points with said axis (Y) is greater than or equal to 5 °, in particular greater than or equal to 10 °.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Claims (15)

  1. Beleuchtungseinheit für einen ein Lichtbündel mit Hell-Dunkel-Grenze erzeugenden Kraftfahrzeugscheinwerfer mit einem Konkavreflektor (2), wenigstens einer Lichtquelle (S), die insbesondere in der Konkavität des Reflektors angeordnet ist, um insbesondere wenigstens nach oben zu leuchten, und einer vor dem Reflektor und der Lichtquelle angeordneten Linse (3), wobei der Reflektor einer insbesondere horizontalen Ablenkfläche (4) zugeordnet ist, deren Oberseite reflektierend ist, um das vom Reflektor stammende Lichtbündel umzulenken, wobei die Ablenkfläche einen vorderen äußeren Rand (5) hat, der die Hell-Dunkel-Grenze des Lichtbündels zu bilden vermag,
    dadurch gekennzeichnet, dass
    - der vordere Rand (5) der Ablenkfläche durch eine insbesondere in einer horizontalen Ebene ebene Kurve mit variabler Krümmung gebildet ist, wobei die Krümmung in einem Punkt (M) eine stetige Funktion der seitlichen Koordinate (x) dieses Punktes ist,
    - der Reflektor (2) eine Form aufweist, die so gewählt ist, dass ein von der Mitte der Lichtquelle stammender und vom Reflektor reflektierter Strahl den vorderen Rand der Ablenkfläche schneidet und dabei in einer zu dem Rand senkrechten, durch diesen Schnittpunkt verlaufenden Ebene liegt,
    - und die Linse (3) so ausgebildet ist, dass sie von einem Punkt (M) des Randes (5) der Ablenkfläche eine Abbildung ins Unendliche in der zum vorderen Rand der Ablenkfläche senkrechten Ebene im Schnittpunkt erzeugt.
  2. Beleuchtungseinheit nach dem vorhergehenden Anspruch,
    dadurch gekennzeichnet, dass die Linse (3) dazu bestimmt ist, von einem Punkt (M) des Randes (5) der Ablenkfläche eine Abbildung ins Unendliche in einer Richtung zu erzeugen, die bezüglich der Ebene der Ablenkfläche um eine stetige Winkelfunktion des Abstands dieses Punktes zur optischen Achse geneigt ist
  3. Beleuchtungseinheit nach Anspruch 1,
    dadurch gekennzeichnet, dass die Krümmung des vorderen Randes (5) der Ablenkfläche wenigstens ein Maximum (5b1, 5b2) aufweist, das winkelmäßig zwischen der optischen Achse (Y) der Einheit und einer Winkelbegrenzung des Lichtbündels liegt.
  4. Beleuchtungseinheit nach einem der vorhergehenden Ansprüche,
    dadurch gekennzeichnet, dass die Krümmung des vorderen Randes (5) der Ablenkfläche ein zusätzliches Maximum aufweist, das auf oder im Wesentlichen auf der optischen Achse liegt.
  5. Beleuchtungseinheit nach Anspruch 3 oder 4,
    dadurch gekennzeichnet, dass die Krümmung des vorderen Randes (5) der Ablenkfläche ein Maximum (5b1, 5b2) auf jeder Seite der optischen Achse aufweist.
  6. Beleuchtungseinheit nach dem vorhergehenden Anspruch,
    dadurch gekennzeichnet, dass der vordere Rand (5) der Ablenkfläche bezüglich der optischen Achse symmetrisch ist.
  7. Beleuchtungseinheit nach einem der vorhergehenden Ansprüche,
    dadurch gekennzeichnet, dass das Maximum (5b1, 5b2) der Krümmung des vorderen Randes der Ablenkfläche so gewählt ist, dass die Beleuchtung der äußeren Winkelbereiche des Lichtbündels verstärkt wird, ohne dabei die Beleuchtung des mittleren Bereichs zu verringern.
  8. Beleuchtungseinheit nach einem der vorhergehenden Ansprüche,
    dadurch gekennzeichnet, dass sich die äußeren Winkelbereiche des Lichtbündels in Richtungen größer oder gleich ± 35° beidseits der optischen Achse erstrecken.
  9. Beleuchtungseinheit nach einem der vorhergehenden Ansprüche,
    dadurch gekennzeichnet, dass für jede zum Rand (5) der Ablenkfläche in einem Punkt M senkrechte Ebene der Schnittpunkt der Linse (3) mit dieser Ebene die Schnittfläche einer stigmatischen Linse zwischen dem Punkt M und unendlich ist, wobei die Richtung der austretenden Strahlen einen Winkel ή mit der Ebene der Ablenkfläche bildet, der eine stetige Winkelfunktion der seitlichen Koordinate (x) des Punktes M ist.
  10. Beleuchtungseinheit nach einem der vorhergehenden Ansprüche,
    dadurch gekennzeichnet, dass die Funktion ή(x) konstant oder steigend ist in Abhängigkeit des Absolutwertes der seitlichen Koordinate (x) des Punktes M.
  11. Beleuchtungseinheit nach einem der vorhergehenden Ansprüche,
    dadurch gekennzeichnet, dass die Funktion ή(x) konstant und null ist zwischen den seitlichen Koordinaten der Punkte der Ränder der Ablenkfläche, die beidseits einer die optische Achse (Y) der Einheit umfassenden vertikalen Ebene liegen, wobei der Winkel der durch diese Punkte mit der Achse (Y) verlaufenden, zum Rand der Ablenkfläche senkrechten Ebenen größer oder gleich 5°, insbesondere größer oder gleich 10° ist.
  12. Beleuchtungseinheit nach einem der vorhergehenden Ansprüche,
    dadurch gekennzeichnet, dass die Oberfläche des Reflektors (2) derart ist, dass die Lichtstrahlen (i, i1), die von der Lichtquelle ausgehen und in Punkten (P, P1) auftreffen, die am Schnittpunkt (2m) dieser Oberfläche und einer vertikalen Ebene (Em) liegen, welche durch die Mitte der Krümmung aber entfernt von der Lichtquelle verläuft, in dieser vertikalen Ebene solchermaßen reflektiert werden, dass sie in einem am Schnittpunkt der vertikalen Ebene und des Randes der Ablenkfläche liegenden Punkt (M) konvergieren.
  13. Beleuchtungseinheit nach einem der vorhergehenden Ansprüche,
    dadurch gekennzeichnet, dass die Beleuchtung im mittleren Bereich zwischen -10° und +10° beidseits der optischen Achse bezogen auf eine Basiseinheit erhalten bleibt, deren Ablenkfläche einen runden vorderen Rand mit einem dem durchschnittlichen Krümmungsradius des vorderen Randes (5) entsprechenden Radius hat, während die Bereiche, die etwa bei -35° und +35° beidseits der optischen Achse liegen und Linien entsprechen, die gemäß der Norm R19-3 mit 9-1 und 9-2 bezeichnet sind, eine Beleuchtung aufweisen, die höher ist als die mit der Basiseinheit erzielte.
  14. Beleuchtungseinheit nach einem der vorhergehenden Ansprüche,
    dadurch gekennzeichnet, dass das erzielte Lichtbündel mit Hell-Dunkel-Grenze eine ebene Hell-Dunkel-Grenze hat, wobei dieses insbesondere aus einem Nebellichtbündel und einem Teil des Abblendlichtbündels mit ebener Hell-Dunkel-Grenze ausgewählt ist.
  15. Kraftfahrzeugscheinwerfer,
    dadurch gekennzeichnet, dass er wenigstens eine Einheit nach einem der vorhergehenden Ansprüche umfasst.
EP09179737.3A 2008-12-19 2009-12-17 Verbesserter Beleuchtungsmodul für Kraftfahrzeuge Not-in-force EP2199662B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0807296A FR2940404B1 (fr) 2008-12-19 2008-12-19 Module d'eclairage perfectionne pour vehicule automobile.

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Publication Number Publication Date
EP2199662A1 EP2199662A1 (de) 2010-06-23
EP2199662B1 true EP2199662B1 (de) 2016-04-13

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FR (1) FR2940404B1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010035767A1 (de) * 2010-08-20 2012-02-23 Automotive Lighting Reutlingen Gmbh Projektionsscheinwerfer mit gezielt abgeschwächtem Lichtintensitätsgradienten an der Hell-Dunkel-Grenze
FR2979594B1 (fr) 2011-09-05 2013-09-13 Valeo Vision Projecteur pour vehicule automobile
FR2979969B1 (fr) * 2011-09-13 2013-12-27 Valeo Vision Module de projecteur lumineux de vehicule automobile pour eclairage de route
JP6030864B2 (ja) 2012-06-13 2016-11-24 株式会社小糸製作所 灯具ユニットおよび投影レンズ

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2872257B1 (fr) * 2004-06-24 2006-08-18 Valeo Vision Sa Module d'eclairage pour vehicule automobile et projecteur comportant un tel module
FR2898662A3 (fr) * 2006-03-17 2007-09-21 Valeo Vision Procede de construction d'un module de projecteur lumineux pour vehicule automobile, module et projecteur
JP4749968B2 (ja) * 2006-07-31 2011-08-17 株式会社小糸製作所 車両用前照灯

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EP2199662A1 (de) 2010-06-23
FR2940404B1 (fr) 2011-03-11
FR2940404A1 (fr) 2010-06-25

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