EP3403021B1 - Module d'illumination pour un véhicule avec une ligne de coupure - Google Patents

Module d'illumination pour un véhicule avec une ligne de coupure Download PDF

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Publication number
EP3403021B1
EP3403021B1 EP17700768.9A EP17700768A EP3403021B1 EP 3403021 B1 EP3403021 B1 EP 3403021B1 EP 17700768 A EP17700768 A EP 17700768A EP 3403021 B1 EP3403021 B1 EP 3403021B1
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EP
European Patent Office
Prior art keywords
light
intersection
reflector
base
focal line
Prior art date
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Application number
EP17700768.9A
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German (de)
English (en)
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EP3403021A1 (fr
Inventor
Bernd EICHINGER
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ZKW Group GmbH
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ZKW Group GmbH
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Publication of EP3403021A1 publication Critical patent/EP3403021A1/fr
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • 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
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141—Light emitting diodes [LED]
    • F21S41/151—Light emitting diodes [LED] arranged in one or more lines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/25—Projection lenses
    • F21S41/27—Thick lenses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/25—Projection lenses
    • F21S41/275—Lens surfaces, e.g. coatings or surface structures
    • 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
    • F21S41/322—Optical layout thereof the reflector using total internal reflection
    • 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
    • F21S41/37—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors characterised by their material, surface treatment or coatings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the invention further relates to a motor vehicle headlight which has at least one such lighting unit.
  • the DE 60 2006 000 180 T2 describes a lighting unit for a motor vehicle headlight for generating a light beam with a cut-off line, of the type with a light source, a reflector, a diopter or an exit lens and a reflective deflecting surface.
  • a lighting device of the projection type for a vehicle having a light guide body by which light losses are minimized.
  • WO 2013/014046 A1 discloses a device for illuminating a surface, comprising a light source, a first optical element which collects the light from the light source and generates a collimated light beam, and a second optical element which deflects the collimated light beam.
  • the EP 2 620 695 A2 shows a motor vehicle headlight with a light emitter and a projection lens.
  • a similar lighting unit is, for example, from DE 60 2006 000 180 T2 known.
  • a lighting unit in connection with the present invention can be used in a motor vehicle headlight, for example, to implement part of a low beam distribution, in particular the upstream light distribution of a low beam distribution.
  • a lighting unit mentioned at the beginning can be realized in the area of the light exit surface with a low overall height, which in certain embodiments can only be up to 10mm or up to 15mm high, so that a slit-shaped light exit surface that extends in the horizontal direction results.
  • the light exit surface ie the outer surface of the exit lens
  • the light image that can be achieved therewith or the light distribution that can be achieved is often not sufficiently wide in the horizontal direction.
  • the outer surface of the exit lens is formed by a groove-shaped structure in a smooth base surface, the grooves forming the groove-shaped structure running in an essentially vertical direction, and preferably two in each case in the horizontal direction grooves lying next to one another are separated by a, in particular essentially vertical, elevation, which preferably extends over the entire vertical extent of the grooves.
  • the smooth base surface is preferably C0-rising and in particular has no horizontally extending edges.
  • the smooth base surface is cut with second, vertical cutting planes which run parallel to an optical axis of the exit lens
  • the resulting second base cutting curves are designed to be curved, in particular curved outwards, with the second base cutting planes preferably being formed. Intersection curves are continuous.
  • first outer surface intersection curves resulting when the outer surface is cut with first cutting planes connect points of the outer surface with one another at a maximum distance from the base surface.
  • the normal distance to the first outer surface intersection curve in the defined cutting planes is a function A (s) of a parameter s which specifies the position on the second basic intersection curve.
  • the structure according to the invention on the outer surface of the exit lens achieves a horizontal blurring of the exiting light rays, whereby the desired width of the light distribution can be achieved.
  • exactly one light source with exactly one collimator is provided.
  • first base intersection curves resulting when the smooth base surface is cut with first, non-vertical cutting planes run in a straight line, and the first outer surface intersection curves resulting when the outer surface is cut with these first cutting planes have a sinusoidal course exhibit.
  • the zero crossings of the sinusoidal first outer surface intersection curves lie on the first basic intersection curves.
  • the value for the constant k is identical for all first outer surface intersection curves.
  • the second cutting planes are vertical planes parallel to the optical axis of the light-permeable body, i.e. the exit lens of the optical body.
  • optical axis of the optical body in particular the center line of the optical body, is defined below the optical axis in relation to the apex of the exit lens.
  • the first cutting plane results as follows: the first cutting plane in the point under consideration is a plane that is normal to the tangential plane on the base surface, with this plane, ie the first cutting plane, also being normal to the second cutting plane in which the point is located.
  • the second cutting plane is a vertical cutting plane through the smooth base surface, which runs parallel to the optical axis (or through this optical axis) and in which the point under consideration lies.
  • the at least one light source is lower than the focal line area and the light emanating from the at least one light source is directed upwards in order to be reflected downward by the reflector in the direction of the focal line area.
  • the at least one light source is higher than the focal line area and the light emanating from the at least one light source is directed downwards in order to be reflected upwards by the reflector in the direction of the focal line area.
  • the reflector is a surface, for example a cylindrical surface, which has a parabola as a guide line, the focal line of the reflector is formed, for example, by a straight line which is preferably essentially parallel to the generatrix of the cylinder.
  • the parabolic axis is preferably orthogonal to the generators and parallel or antiparallel to the main emission direction of the at least one light source.
  • the reflector is a parabolic surface with a main axis in the vertical direction, which is, for example, trimmed in a cylindrical shape.
  • the trim does not have to be cylindrical.
  • the outer surface of the exit lens is curved outward in the vertical direction, and preferably extends in a straight line in the horizontal direction, and is formed, for example, by a cylindrical surface with a straight cross section along an outwardly convex curve.
  • An example of such an outwardly convex curve is called an aspherical lens contour.
  • it is a free-form lens that is curved outward in the vertical direction and not curved in the horizontal direction.
  • the cylindrical surface of the outer surface has generatrices which are essentially parallel to the generatrices of the reflector.
  • a light source is provided, but it can also be provided that several light sources lie next to one another, for example in the direction of a generator of the reflector, next to one another.
  • the distances between the light source emission points or light source emission surfaces, in particular their light emission focal points, are preferably identical.
  • the at least one light source comprises a light-emitting diode or a plurality of light-emitting diodes.
  • sinusoidal grooved optics are provided, the sinus function being normal to the lens surface, ie the smooth base surface of the exit lens.
  • the period preferably remains unchanged, while the groove depth (amplitude) preferably changes, in particular linearly, for example as above described by a certain initial value A 0 or A 0 * K (with this value the width of the light distribution can be adjusted) at the upper edge of the light exit surface changed to a value of zero or A 0 * (K - 1) at the lower edge of the lens.
  • the light distribution is broadened as desired, and it has surprisingly also been found that the light-dark boundary does not bend outwards, even if the focal line of the translucent body runs in a straight line.
  • top In the context of this description, the terms “top”, “bottom”, “horizontal”, “vertical” are to be understood as indicating the orientation when the unit is arranged in the normal position of use after it has been installed in a lighting device mounted in the vehicle.
  • Figure 1 shows a lighting unit 100 according to the invention for a motor vehicle headlight for generating a light beam with a cut-off line.
  • the lighting unit usually comprises one or more light sources, in the specific example three light sources 1, 1a, 1b, a reflector 2, an exit lens 3 with an outer surface 3a, a focal line area 4, which is arranged between the reflector 2 and the exit lens 3, and furthermore one collimator 10, 10a, 10b for each light source 1, 1a, 1b.
  • the light sources 1, 1a, 1b preferably each include a light-emitting diode or a plurality of light-emitting diodes.
  • the reflector 2 deflects the light rays S2 of the light bundles emerging from the collimators 10, 10a, 10b into a focal line FL lying in the focal line area 4, and the light rays S3 totally reflected by the reflector 2 are at least in vertical direction V is deflected in such a way that the light rays S4 emerging from the exit lens 3 form a light distribution with a light-dark boundary.
  • the light-dark boundary results from the image of a focal line area 4, in which the focal line FL lies, through the exit lens 3.
  • the reflector 2, exit lens 3 and focal line area 4 as well as the collimators 10, 10a, 10b are formed from a translucent, one-piece body 101, and on the reflector boundary surface of the reflector 2 and the boundary surface of the focal line area 4 as well as on the collimator boundary surfaces of the collimators 10 , 10a, 10b, the light rays S1, S2, S3 propagating in the transparent body 101 are totally reflected.
  • the translucent material from which the body 101 is formed preferably has an index of refraction greater than that of air.
  • the material contains, for example, PMMA (polymethyl methacrylate) or PC (polycarbonate) and is particularly preferably formed therefrom.
  • the collimators 10, 10a, 10b align the light beams S1 fed into the collimator 10, 10a, 10b by the light source 1, 1a, 1b assigned to it to form a light bundle of essentially parallel light beams S2, which light bundle S2 is essentially normal to an exit plane E of the collimator 10, 10a, 10b.
  • the collimators 10, 10a, 10b emit the light in parallel in one direction (e.g. in the vertical direction V in the light image) and in the direction normal to it (horizontal H. in the photo) fan out accordingly.
  • the two outer collimators 10, 10b preferably have an asymmetrical emission characteristic in order to avoid reflections on the side surfaces of the transparent body 101 and the inhomogeneities caused thereby.
  • the light is therefore already scattered horizontally in front of the focal plane of the exit lens.
  • a broad light distribution in particular a broad front-end light distribution, can be achieved in conjunction with the diffusing optics according to the invention described further below on the front side of the light-permeable body 101.
  • the reflector 2 is designed, for example, as a cylindrical surface which has a parabola as a guide line, the focal line BL of the reflector being formed by a straight line that is essentially parallel to the generatrix of the cylinder.
  • the focal line of the reflector FL lies in the focal line area 4 of the body 101 and preferably essentially coincides with the focal line of the exit lens 3.
  • the focal line area 4 is an edge in the body 101.
  • the HD line is formed by mapping the edge 4, which is a curved line, in particular with a slight curvature or particularly preferably a straight line.
  • the light which may emerge below the edge 4 via the surface 4a is shaded by the surface 4a lying below the edge 4 being shaded, for example, by a screen or a dark, e.g. black or brown coating on its outside, etc., in order to prevent incorrect / Avoid stray light
  • the outer surface 3a of the exit lens 3 of the body 101 is curved outward in the vertical direction, preferably in such a way that in a central area the exit surface is further forward in the light exit direction than its upper and lower edge area.
  • the exit lens preferably runs in a straight line and is, for example, through a cylindrical surface with a straight cross section along a straight line outside convex curve is formed, or by a free-form lens that is curved in the vertical direction outward and not curved in the horizontal direction.
  • the cylindrical surface of the outer surface 3a has generatrices which are essentially parallel to the generatrices of the reflector, or are rectilinear sections of the free-form lens, preferably parallel to the generatrices of the reflector 2.
  • Figure 2 corresponds to a vertical section through the lighting unit Figure 1 .
  • the light sources 1 lie lower than the focal line area 4, and the light emanating from one light source is directed upwards in order to be reflected downward by the reflector 2, as already described in detail, in the direction of the focal line area 4.
  • Figure 3 shows a basically similarly constructed lighting unit, with the difference that here the at least one light source 1 is higher than the focal line area 4, and the light emanating from the at least one light source 1 is directed downwards in order to pass through the reflector 2 upwards in the direction of the Focal line area 4 to be reflected.
  • FIG. 4 shows a lighting unit from which a lighting unit 101 ′ according to the invention is based, as already shown in FIG Figures 1 - 3 is indicated in principle "generated".
  • the lighting unit 101 'off Figure 4 has the structure already described above, so that no further discussion is necessary here.
  • Illumination unit 101 'shown has an exit lens 3' with a smooth exit surface 3a '.
  • Figure 4a shows a light distribution with a light-dark boundary, for example a low beam distribution or a part, for example the area in front of a low beam distribution. Such a light distribution has a certain width, as in Figure 4a indicated.
  • FIG Fig. 5 again those already in Fig. 1 Illumination unit 101 shown.
  • the outer surface 3a of the exit lens 3 consists of a smooth base surface BF (corresponding to the exit surface 3a ' Fig. 4 ), which is provided with a groove-shaped structure, the grooves 3b forming the groove-shaped structure running in the vertical direction, that is to say from top to bottom.
  • the outer surface 3a of the exit lens 3 is formed by a groove-shaped structure in a smooth base surface BF, the grooves 3b forming the groove-shaped structure running in a substantially vertical direction, and preferably two grooves 3b lying next to one another in the horizontal direction by one, in particular substantially vertically extending elevation, which preferably extends over the entire vertical extent of the grooves 3b, are separated.
  • the necessary width for the desired light image in particular not for a light distribution in front of a low beam distribution, can often not be achieved.
  • the structure according to the invention on the outer surface of the exit lens achieves a horizontal blurring of the exiting light rays, whereby the desired width of the light distribution can be achieved, as shown schematically in FIG Figure 5a is shown.
  • Figure 6 and Figure 8 show vertical sections through the body 101, to be precise in each case an enlarged section of the light-permeable body between its focal line FL and the light exit surface 3a.
  • Figure 6 shows a second vertical section, which contains a point P under consideration on the base area BF
  • Figure 8 shows a second vertical section SE2 in which four points PA, PB, PC and PD considered as examples lie.
  • first, non-vertical cutting planes SE1 (these cutting planes SE1 are discussed in more detail below), for example at point P ( Figure 6 ) or according to the sections AA, BB, CC, DD ( Figure 8 ), this results in first basic intersection curves BSK1, which run in a straight line, with the intersecting the Outer surface 3a with these first cutting planes SE1 resulting first outer surface intersection curves SK1 (which correspond to the course of the lens outer surface in these cutting planes SE1) have a sinusoidal course.
  • the smooth base surface is a conceptual construct in relation to which the then actually realized outer surface is described.
  • the first, non-vertical section planes SE1 are a large number of such non-vertical section planes, which are precisely defined below.
  • Figure 7 shows such an exemplary first cutting plane SE1, in which the point P lies, which is normal to the tangential plane TE at the point P ( Figure 6 ), for a general illustration of the relationships.
  • the outer surface of the lens is shown in relation to a first basic section curve BSK1.
  • the basic intersection curve BSK1 is a straight line with the parameter x along this straight line BSK1.
  • the lens outer contour is a first outer surface intersection curve SK1, which in this example is proportional to sin (k * x).
  • Figure 8 shows a section along a second, vertical section plane SE2 parallel to the optical axis Z, with the four points PA, PB, PC and PD considered by way of example.
  • First section planes SE1 are shown in these four points, the corresponding courses of the resulting second outer surface section curves SK2 for the four selected section planes SE1 (corresponding to sections AA, BB, CC and DD) are shown in FIG Figures 9a-9d shown.
  • double the amplitude that is to say the distance between the maximum and minimum deflection, is shown in the sections.
  • typical values for the period length T [mm] are in a range up to 2.50 mm, preferably up to 2.00 mm.
  • preferred values are between 0.25 mm to 2.50 mm, for example between 1.25 mm and 2.00 mm.
  • Preferred values for the maximum amplitude A 0 [ ⁇ m], regardless of the embodiment shown, are in a range from 50 ⁇ m to 350 ⁇ m, a typical value is 250 ⁇ m.
  • 0.1 ⁇ (T / A 0 ) ⁇ 0.250 has been found to be a favorable range of values for the size ratio A 0 to T.
  • Figure 8 further shows (as well as Figure 6 ) that when the smooth base surface BF is cut with the second, vertical cutting planes SE2, which run parallel to an optical axis Z of the exit lens 3, the second base cutting curves BSK2 are curved, in particular curved outwards, preferably the second basic intersection curves BSK2 are continuous.
  • the second outer surface intersection curves SK2 resulting from a cutting of the outer surface 3a with defined second cutting planes SE2 connect points of the outer surface 3a with a maximum distance from the base surface BF.
  • the normal distance between the second outer surface intersection curve SK2 and the second basic intersection curve BSK2 can be determined as a function A (s) of a parameter s, which defines the position on the second basis -Section curve BSK2 indicates.
  • the second cutting plane is a vertical cutting plane through the smooth base surface BF, which runs parallel to the optical axis Z (or through this optical axis Z) and in which the point P under consideration lies.
  • the first cutting planes SE1 enclose an angle of 90 ° with the second basic cutting curve BSK2.
  • a typical value for the parameter K is in the range from 1.2 to 1.45, preferably around 1.33.
  • sinusoidal grooved optics are provided, the sinus function being normal to the lens surface, ie the smooth base surface of the exit lens.
  • the period preferably remains unchanged, while preferably the groove depth (amplitude), in particular linearly, from a certain starting value A 0 (with this value the width of the light distribution can be adjusted) at the upper edge of the light exit surface to a value of zero at the lower edge of the Lens changed.
  • the light distribution is broadened as desired, and it has surprisingly also been found that the light-dark boundary does not bend outwards, even if the focal line of the translucent body runs in a straight line.

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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 (13)

  1. Unité d'éclairage pour un phare de véhicule automobile permettant de générer un faisceau lumineux avec ligne de coupure faisceau lumineux avec ligne de coupure, ayant:
    - au moins une source de lumière (1, 1a, 1b),
    - un réflecteur (2)
    - une lentille de sortie (3) avec une surface extérieure (3a), et la lentille de sortie (3),
    et en outre avec un collimateur (10, 10a, 10b) pour chaque source lumineuse (1, 1a, 1b), le collimateur (10, 10a, 10b) orientant les rayons lumineux (S1) introduits dans le collimateur (10, 10a, 10b) depuis la source lumineuse (1, 1a, 1b) qui lui est affectée pour former un faisceau de rayons lumineux (S2),
    et dans lequel le réflecteur (2) dévie les rayons lumineux (S2) du faisceau lumineux sortant du collimateur (10, 10a, 10b) dans une ligne focale (FL) située dans la région de ligne focale (4),
    et dans lequel les rayons lumineux (S3) réfléchis par le réflecteur (2) sont déviés par la lentille de sortie (3) au moins dans la direction verticale (V) de telle sorte que les rayons lumineux (S4) sortant de la lentille de sortie (3) forment une distribution de lumière avec une limite clair-obscur, dans lequel la limite clair-obscur résulte comme une image de la ligne focale (FL) ou de la région de ligne focale (4) à travers la lentille de sortie (3),
    et dans lequel
    réflecteur (2), la lentille de sortie (3) et la zone de ligne focale (4), et de préférence le au moins un collimateur (10, 10a, 10b), sont formés à partir d'une pièce transmettant la lumière (101), et dans lequel à la surface limite du réflecteur (2) et/ou à la surface limite de la zone de ligne focale (4), et de préférence à la surface limite de collimateur du au moins un collimateur (10, 10a, 10b), les rayons lumineux (S1, S2, S3) se propageant dans la pièce de transmission de lumière (101) sont totalement réfléchis,
    caractérisé en ce que
    la surface extérieure (3a) de la lentille de sortie (3) est formée par une structure en forme de rainure dans une surface de base lisse (BF), les rainures (3b) formant la structure en forme de rainure s'étendant dans une direction sensiblement verticale, et de préférence dans chaque cas deux rainures (3b) situées l'une à côté de l'autre dans la direction horizontale étant formées par une, en particulier une élévation s'étendant sensiblement verticalement, qui s'étend de préférence sur toute l'étendue verticale des rainures (3b), dans lequel la surface de base est une construction intellectuelle, par rapport à laquelle la surface extérieure effectivement réalisée est décrite, dans lequel
    les secondes courbes d'intersection de base (BSK2) résultant d'une intersection de la surface de base avec des seconds plans d'intersection verticaux (SE2), qui s'étendent parallèlement à un axe optique (Z) de la lentille de sortie (3), sont incurvées, en particulier incurvées vers l'extérieur, de préférence les secondes courbes d'intersection de base (BSK2) étant continues, dans lequel
    les premières courbes d'intersection de surface extérieure (SK1) résultant d'une intersection de la surface extérieure (3a) avec des premiers plans d'intersection (SE1) relient des points de la surface extérieure (3a) à une distance maximale de la surface de base (BF), dans lequel les premiers plans d'intersection (SE1) sont normaux à un plan tangentiel (TE) de la surface de base (BF), dans lequel
    dans une progression le long de la deuxième courbe d'intersection de base (BSK2) dans les premiers plans d'intersection (SE1), la distance normale de la surface de base (BF) à la première courbe d'intersection de surface extérieure (SK1) est une fonction A(s) d'un paramètre s indiquant la position sur la deuxième courbe d'intersection de base (BSK2), dans laquelle
    en progressant le long de la deuxième courbe d'intersection de base (BSK2), la distance normale A(s) augmente de manière continue, de préférence la distance normale au niveau d'un bord inférieur de la surface de base (BF) étant plus petite qu'au niveau d'un bord supérieur de la surface de base et, où inférieur et supérieur doivent être compris comme une seule orientation, lorsque l'unité d'éclairage a été installée dans un dispositif d'éclairage monté dans un véhicule, la distance normale A(s) étant obtenue, par exemple, selon la relation A(s) = A0 * (K - s), avec s [0, 1], où s = 0 désigne le bord supérieur et s = 1 désigne le bord inférieur, et K = 1 ou K > 1, où A0 est la distance normale à un bord supérieur ou inférieur, de préférence supérieur, de la surface de base (BF).
  2. Unité d'éclairage selon la revendication 1, caractérisée en ce que les premières courbes d'intersection de base (BSK1) résultant d'une intersection de la surface de base (BF) avec des premiers plans d'intersection non verticaux (SE1) sont rectilignes, et dans laquelle les premières courbes d'intersection de surface externe (SK1) résultant d'une intersection de la surface externe (3a) avec ces premiers plans d'intersection (SE1) ont une course sinuso dale, dans laquelle la première courbe d'intersection de surface externe (SK1) forme le contour externe de la lentille.
  3. Unité d'éclairage selon la revendication 2, caractérisée en ce que les premières courbes d'intersection de surface extérieure (SK1) dans les premiers plans d'intersection (SE1), par rapport à la courbe d'intersection de base (BSK1) du premier plan d'intersection respectif (SE1), sont proportionnelles à sinN(k*x), avec N = 1, 2, 3, ...., où x désigne la coordonnée le long de la courbe d'intersection de base respective (BSK1) et k désigne une constante.
  4. Unité d'éclairage selon la revendication 3, caractérisée en ce que les passages par zéro des premières courbes sinusoïdales d'intersection de surface extérieure (SK1) se trouvent sur les premières courbes d'intersection de base (BSK1).
  5. Unité d'éclairage selon la revendication 3 ou 4, caractérisée en ce que la valeur de la constante k est identique pour toutes les premières courbes d'intersection de surfaces extérieures (SK1).
  6. Unité d'éclairage selon l'une quelconque des revendications 1 à 5, caractérisée en ce que la au moins une source de lumière est située plus bas que la zone de ligne focale (4), et la lumière émanant de la au moins une source de lumière est dirigée vers le haut pour être réfléchie vers le bas par le réflecteur (2) vers la zone de ligne focale (4).
  7. Unité d'éclairage selon l'une quelconque des revendications 1 à 5, caractérisée en ce que la au moins une source de lumière est située plus haut que la zone de ligne focale (4), et la lumière émanant de la au moins une source de lumière est dirigée vers le bas pour être réfléchie par le réflecteur (2) vers le haut en direction de la zone de ligne focale (4).
  8. Unité d'éclairage selon l'une quelconque des revendications 1 à 7, caractérisée en ce que le réflecteur (2) est une surface, par exemple une surface cylindrique, ayant une parabole comme directrice, la ligne focale du réflecteur étant formée, par exemple, par une droite qui est de préférence sensiblement parallèle aux génératrices du cylindre.
  9. Unité d'éclairage selon l'une quelconque des revendications 1 à 8, caractérisée en ce que la surface extérieure (3a) de la lentille de sortie (3) est incurvée vers l'extérieur dans la direction verticale, et est de préférence droite dans la direction horizontale et par exemple, est formée par une surface cylindrique à section droite le long d'une courbe convexe vers l'extérieur.
  10. Unité d'éclairage selon les revendications 8 et 9, caractérisée en ce que la surface cylindrique de la surface extérieure (3a) a des génératrices qui sont sensiblement parallèles aux génératrices du réflecteur.
  11. Unité d'éclairage selon l'une quelconque des revendications 1 à 10, caractérisée en ce qu'une pluralité de sources lumineuses (1, 1a, 1b) sont juxtaposées, par exemple en direction d'une génératrice du réflecteur (2).
  12. Unité d'éclairage selon l'une quelconque des revendications 1 à 11, caractérisée en ce que la au moins une source de lumière (1, 1a, 1b) comprend une diode électroluminescente ou une pluralité de diodes électroluminescentes.
  13. Projecteur de véhicule automobile comprenant au moins une unité d'éclairage selon l'un des cas suivants les revendications 1 à 12.
EP17700768.9A 2016-01-14 2017-01-09 Module d'illumination pour un véhicule avec une ligne de coupure Active EP3403021B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA50015/2016A AT518109B1 (de) 2016-01-14 2016-01-14 Beleuchtungseinheit für einen Kraftfahrzeugscheinwerfer zum Erzeugen eines Lichtbündels mit Hell-Dunkel-Grenze
PCT/AT2017/060003 WO2017120630A1 (fr) 2016-01-14 2017-01-09 Unité d'éclairage destinée à un phare de véhicule automobile pour générer un faisceau de lumière à frontière clair-obscur

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EP3403021A1 EP3403021A1 (fr) 2018-11-21
EP3403021B1 true EP3403021B1 (fr) 2021-10-27

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KR (1) KR102145335B1 (fr)
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CN108758563B (zh) * 2018-03-13 2023-09-29 深圳市美斯特光电技术有限公司 光控制元件及光源装置
AT521381B1 (de) 2018-07-19 2020-01-15 Pro Aqua Diamantelektroden Produktion Gmbh & Co Kg Verfahren und Vorrichtung zur Durchführung von Gaswäsche mittels einer Elektrolytlösung
FR3086735B1 (fr) * 2018-09-28 2021-06-25 Valeo Vision Piece optique monobloc en materiau transparent ou translucide a surface inactive avec portion diffusante
EP3653926B1 (fr) * 2018-11-19 2022-02-16 ZKW Group GmbH Dispositif d'éclairage pour un phare de véhicule automobile ainsi que phare de véhicule automobile
EP3671016A1 (fr) * 2018-12-21 2020-06-24 ZKW Group GmbH Dispositif d'éclairage pour un phare de véhicule automobile ainsi que phare de véhicule automobile
KR102558734B1 (ko) * 2018-12-26 2023-07-25 에스엘 주식회사 차량용 램프
JP7218041B2 (ja) 2019-05-21 2023-02-06 市光工業株式会社 車両用導光体及び車両用灯具ユニット
CN112432132B (zh) * 2019-08-26 2022-03-18 比亚迪股份有限公司 一体化透镜、照明模组及车辆
JP7364409B2 (ja) * 2019-09-26 2023-10-18 株式会社小糸製作所 車両用ランプ
CN210740266U (zh) * 2019-10-25 2020-06-12 华域视觉科技(上海)有限公司 车灯光学元件
JP7363416B2 (ja) * 2019-11-27 2023-10-18 市光工業株式会社 車両用導光体及び車両用灯具ユニット
JP7317205B2 (ja) * 2019-12-20 2023-07-28 ▲華▼域▲視▼▲覺▼科技（上▲海▼）有限公司 光学素子、車両ランプモジュール、車両ランプ及び車両
CN212584877U (zh) 2020-01-02 2021-02-23 法雷奥照明公司 导光部件、照明装置和车辆
CN113154331B (zh) * 2020-01-22 2024-01-23 扬明光学股份有限公司 交通工具的投射装置及其制造方法、车前头灯
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CN213299956U (zh) * 2020-04-30 2021-05-28 华域视觉科技(上海)有限公司 车灯用光导体、远光照明模组及车灯
CN212746315U (zh) * 2020-07-02 2021-03-19 华域视觉科技(上海)有限公司 透镜单元、辅助近光模组、透镜、近光照明模组和车辆
CN113028355B (zh) * 2021-03-23 2022-01-07 华域视觉科技(上海)有限公司 车灯光学组件、照明光学装置和车辆
CN113091014B (zh) * 2021-04-06 2022-02-22 华域视觉科技(上海)有限公司 车灯光学元件、车灯模组和车辆
FR3127547B1 (fr) * 2021-08-31 2023-10-13 Valeo Vision Module lumineux à sources à partie émissive maximisée

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AT518109A1 (de) 2017-07-15
CN108474534A (zh) 2018-08-31
CN108474534B (zh) 2021-11-23
KR20180103962A (ko) 2018-09-19
EP3403021A1 (fr) 2018-11-21
KR102145335B1 (ko) 2020-08-19
AT518109B1 (de) 2017-11-15
WO2017120630A1 (fr) 2017-07-20

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