EP3470727B1 - Beleuchtungsmodul, das ein lichtmuster bildet, dessen oberer teil scharfe vertikale kanten und dessen unterer teil unscharfe vertikale kanten aufweist - Google Patents

Beleuchtungsmodul, das ein lichtmuster bildet, dessen oberer teil scharfe vertikale kanten und dessen unterer teil unscharfe vertikale kanten aufweist Download PDF

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Publication number
EP3470727B1
EP3470727B1 EP18196923.9A EP18196923A EP3470727B1 EP 3470727 B1 EP3470727 B1 EP 3470727B1 EP 18196923 A EP18196923 A EP 18196923A EP 3470727 B1 EP3470727 B1 EP 3470727B1
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EP
European Patent Office
Prior art keywords
light
lighting module
vertical
upper portion
transversely
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EP18196923.9A
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English (en)
French (fr)
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EP3470727A1 (de
Inventor
Eric Mornet
Marine Courcier
Alexandre Joerg
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Valeo Vision SAS
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Valeo Vision SAS
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Publication of EP3470727A1 publication Critical patent/EP3470727A1/de
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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]
    • 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
    • F21S41/153—Light emitting diodes [LED] arranged in one or more lines arranged in a matrix
    • 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]
    • F21S41/143—Light emitting diodes [LED] the main emission direction of the LED being parallel 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
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/24—Light guides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/25—Projection lenses
    • F21S41/255—Lenses with a front view of circular or truncated circular outline
    • 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
    • F21S41/60—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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
    • F21W2102/10—Arrangement or contour of the emitted light
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
    • F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles
    • 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 relates to a lighting module for a motor vehicle headlight comprising at least one light source and optical elements for forming at least one light pattern.
  • Such light modules are capable of producing a lighting light beam, for example a high beam, divided into light patterns forming pixels which can be selectively extinguished. This makes it possible, for example, to optimally illuminate the road and its surroundings while avoiding dazzling road users.
  • Such light modules are known under the English name “pixel beam”. For example, it is possible to divide the overall light beam into a matrix of pixels or even into vertical bands.
  • Certain light patterns called overlapping, making up the pixel light beam illuminate, for a first lower part, the road near the vehicle and, for a second upper part, above the road.
  • each overlapping light pattern is demarcated by vertical edges that are noticeably sharp across their entire height.
  • the lower part of said adjacent overlapping light patterns delimits the shadow zone by boundaries which appear clearly on the road surface.
  • the document DE10 2014 216 545 A1 describes pixel light beams, in which the pixels have different light intensity gradients from edge to edge.
  • the invention proposes a lighting module according to claim 1.
  • the invention also relates to a motor vehicle headlight comprising at least one lighting module produced according to the teachings of the invention.
  • a motor vehicle 10 equipped with a lighting device 12, here a headlight 12.
  • the lighting device 12 produces a pixel light beam 14 which performs a specific lighting function. In a non-limiting manner, this is a high beam function.
  • the pixel light beam 14 is emitted along a substantially longitudinal emission axis "A" towards the front of the vehicle 10.
  • a vertical transverse screen 16 has been arranged at a determined longitudinal distance in front of the vehicle 10.
  • the screen 16 is here arranged 25 m from the vehicle.
  • transverse axis "H” and a vertical axis "V” concurrent at the level of the axis "A" of emission of the light beam with pixels 14.
  • the axes "H” and “V” are graduated in degree of opening of the light beam.
  • the horizontal axis "H” divides the screen 16 into an upper part and a lower part.
  • the parts of the pixel light beam 14 which illuminate the lower part of the screen 16 are intended to illuminate the road surface in front of and near the vehicle, while the parts of the pixel light beam 14 which illuminate the upper part of screen 16 are intended to illuminate above the road.
  • the pixel light beam 14 here comprises a transverse alignment of five identical and contiguous light patterns 18.
  • the light patterns referenced 18 illuminate a lower part of the screen 16.
  • the projector 12 is also capable of projecting a second line of complementary light patterns 17 which are arranged above the lower line of patterns 18. All of the light patterns 18 and 17 make it possible to perform the high beam function when they are lit simultaneously.
  • the invention specifically relates to the formation of the light patterns 18 of the lower line which overlap the horizontal "H" axis of the screen 16.
  • the fourth light pattern 18 from the left is selectively extinguished to form a shadow zone 20. All the light patterns 18 here overlap the horizontal axis "H". Each light pattern 18 illuminates over a field width less than or equal to 20°, for example a field width less than or equal to 15° or 10°.
  • At least one of the light patterns 18 is produced by a lighting module 19 of the headlight 12 of a motor vehicle comprising a plurality of light sources and a primary optical element.
  • Each light pattern 18 is projected in a fixed direction relative to the motor vehicle.
  • the projector 12 mainly comprises a housing (not shown) which is closed by a glass (not shown) through which the pixel light beam is projected.
  • the projector 12 thus contains at least the lighting module 19.
  • the light patterns 18 being identical, only one of these light patterns 18 will be described with reference to the Figure 3 , the description being applicable to other light patterns.
  • Each light pattern 18 is divided into an upper portion 18A and a lower portion 18B which are illuminated by simultaneous and inseparable manner.
  • the upper portion 18A and the lower portion 18B are delimited by a transverse line which here passes through the optical axis "A" and which here corresponds to the line "H" of the screen.
  • the upper portion 18A of the light pattern 18 illuminates above the road, while the lower portion 18B illuminates the surface of the road in front and close to the vehicle 10, for example between 5 m and 50 m.
  • the upper portion 18A is delimited transversely by two so-called sharp vertical edges 20A, 20B for each of which the light intensity decreases according to a first determined gradient "G1".
  • the lower portion 18B is delimited transversely by two vertical edges 22A, 22B called blurred edges for each of which the light intensity decreases according to a second determined gradient "G2", lower than said first determined gradient "G1".
  • a first sharp edge will be more “sharp” than a second blurred edge, that is to say that the intensity gradient of the sharp edge will be greater than that of the blurred edge, and, conversely, the second blurred edge will be more "blurry” than the first sharp edge, that is to say that the intensity gradient of the blurred edge will be smaller than that of the sharp edge.
  • the first determined gradient "G1" of light intensity of the so-called net transverse edge 20A was calculated along a transverse line “L1" passing through the axis "H".
  • the first gradient "G1" determined here is equal to approximately 0.35.
  • the first gradient "G1” determined is greater than 0.13, preferably greater than 0.30. This corresponds to a rapid decrease in intensity when crossing the vertical edge 20A along the line "L1".
  • the second determined gradient "G2" of light intensity of the so-called blurred transverse edge 22A was calculated along a transverse line “L2" arranged below the axis "H".
  • the second gradient "G2" determined here is equal to approximately 0.11.
  • the second gradient "G2" determined is less than 0.2, preferably less than 0.13. This corresponds to a slower decrease in light intensity when crossing the vertical edge 22A along line "L2" relative to the decrease in intensity along line "L1".
  • the gradient is obtained in the manner described below.
  • the first or second gradient "G1", “G2” corresponds to the maximum value of G( ⁇ ) obtained on the segment corresponding to the lateral edge considered.
  • the shadow zone 20 which is created on the surface of the road is delimited transversely by vertical edges 22A, 22B called blurred.
  • Such a configuration makes it possible to avoid drawing the driver's attention to the delimitation between the shadow zone 20 and the zones illuminated by the illuminated light patterns 18.
  • each so-called blurred vertical edge 22A, 22B of the lower portion 18B is arranged substantially in the vertical extension of the corresponding sharp vertical edge 20A, 20B of the upper portion 18A.
  • the lower portion 18B is delimited by so-called blurred vertical edges 22A, 22B, it illuminates a larger surface transversely than the upper portion 18A.
  • At least one so-called blurred vertical edge 22A, 22B of the lower portion 18B is offset transversely with respect to the corresponding sharp vertical edge 20A, 20B of the upper portion 18A.
  • the upper end of said offset vertical edge 22A, 22B is connected to the lower end of said sharp vertical edge by a so-called sharp horizontal edge 24A, 24B.
  • the so-called sharp horizontal edge 24A, 24B is here merged with the axis "H" so that it is not perceptible to the driver.
  • the lower portion 18B of the light pattern 18 is more extended transversely in both directions compared to the upper portion 18A.
  • the lower portion 18B is delimited upwards by a first so-called sharp edge 24A, by the upper portion 18A and by a second so-called sharp edge 24B.
  • the lower portion 18B of the light pattern 18 is entirely offset transversely in one direction relative to the upper portion 18A, here towards the left.
  • the lower portion 18B is delimited upwards by a first so-called sharp edge 24A, by the upper portion 18A.
  • the upper portion 18A is delimited downwards by the lower portion 18B and by a second so-called sharp edge 24B.
  • the lower portion 18B of the light pattern 18 is more extended transversely in one direction compared to the upper portion 18A.
  • the lower portion 18B is delimited upwards by a first so-called sharp edge 24A, by the upper portion 18A.
  • the second so-called fuzzy edge 22B is arranged substantially in the extension of the corresponding so-called sharp edge 20B.
  • the pattern then has an “L” shape.
  • a lighting module 19 capable of producing at least part of the light patterns forming the pixel light beam 14, as shown in figures 8 to 10 .
  • the lighting module 19 is designed to form several light patterns 18 aligned transversely. Said light patterns 18 are contiguous, or even overlap, transversely, in order to form a light beam with pixels 14 illuminating homogeneously when all the light patterns 18 are lit.
  • Each light pattern 18 can be controlled independently to participate in the formation of the pixel light beam 14 performing a specific lighting function, for example a high beam.
  • the lighting module 19 comprises a primary optical element 26 associated with a plurality of light sources 28, each of which is associated with a light pattern 18.
  • Each light source 28 is for example a light-emitting diode belonging to a matrix of light-emitting diodes.
  • the light sources 28 are here aligned transversely.
  • the primary optical element 26 comprises a plurality of light guides 30 which form a transverse row.
  • Each light guide 30 extends globally longitudinally from a rear entry face 32 of the light emitted by an associated light source 28 to a front exit face 34 of the light.
  • each light guide 30 is associated with one of the light sources 28. According to a variant each light guide 30 is associated with several of the light sources 28.
  • the input faces 32 are in the same vertical transverse plane parallel to the plane of the light-emitting diodes 28.
  • the output faces 34 are also arranged in the same transverse vertical plane.
  • a transverse space is reserved between two adjacent light guides 30 to allow the guiding of the light rays by total internal reflection on the side faces of the light guides 30.
  • Each light guide 30 has a rectangular cross section. Each light guide 30 thus has two vertical side faces 35 and two upper and lower faces.
  • the primary optical element 26 also comprises a front lens 36.
  • the front lens 36 is delimited longitudinally towards the front by a face 38 for shaping the light patterns 18 and towards the rear with a transverse vertical face which is coincident with the plane of the exit faces 34 of the light guides 30.
  • the front lens 36 is here produced as a single piece with the light guides 30.
  • the light guides 30 open directly into the front lens 36.
  • the light rays emerging from the exit faces 34 of the light guides are thus propagate without being deflected to the exit face 38 of the front lens 36.
  • the lighting module 19 also includes a front end projection lens 39, shown in Figure 9 , which is arranged longitudinally in front and at a distance from the face of exit 38 of the front lens 36.
  • the projection lens 39 is intended to project a vertically inverted image of the exit faces 34 of the light guides towards infinity.
  • an upper portion 34B of the exit face 34 of a light guide 30 is intended to form the lower portion 18B of the associated light pattern 18, while a lower portion 34A of the exit face 34 of the light guide 30 is intended to form the upper portion 18A of the associated light pattern 18.
  • each side face 35 of each light guide 30 is connected to the side faces 35 of the adjacent light guides 30 via a transverse bridge 40 made from material in a single piece with light guides.
  • Each bridge 40 extends longitudinally from the plane of the entry faces 32 to the plane of the exit faces 34, here up to the front lens 36.
  • Each bridge 40 is arranged transversely in coincidence with the upper portion 34B of the exit face of the light guides 30.
  • all the bridges 40 are delimited by a lower face 41 and by an upper face 43.
  • the upper face 43 is arranged in the same plane as the upper faces of the light guides 30.
  • the lower faces 41 are arranged in a common horizontal plane.
  • the upper parts of the light guides 30 thus connected by the bridges 40 form a single light shaping sheet which extends transversely over the entire row of the light guides 30 and having an exit face 34B single extending transversely all along the row of light guides 30. Only a lower part of the side faces 35 of the light guides remains free, as shown in figures 8 And 9 .
  • certain light guides are not connected by bridges.
  • the optical element primary has several light shaping layers, each of which encompasses several light guides and which each has an associated output face.
  • each bridge 40 has a thickness approximately equal to half the height of the side face 35 of the light guide 30.
  • the thickness of each bridge can also be less than half of said height.
  • the thickness of the bridges varies as a function of their position along the primary optical element.
  • the upper portion 18A of the light patterns 18 is produced by the lower parts of light guides 30 separated transversely from each other by a space. This configuration allows the free lateral faces 35 of the light guide 30 to reflect the light by total internal reflection to concentrate the light rays towards the lower portion 34A of the exit face 34. This thus makes it possible to form the so-called sharp vertical edges of the upper portion 18A of light pattern 18.
  • the bridges 40 made on either side of the upper part of the light guides 30 allow the light rays to continue their propagation in a straight line beyond the side face 35 to exit onto a more transversely extended surface of the upper portion of the exit face 34B than the lower portion 34A of the exit face.
  • the shaping sheet formed by the bridges 40 makes it possible to obtain a light pattern 18 having an inverted "T" shape as shown in figures 3 and 4 .
  • returned T we mean a pattern having an upper portion of substantially constant width and a lower portion wider than the upper portion and projecting laterally on either side of the upper part.
  • the lower horizontal faces of the bridges 40 make it possible to create so-called clean horizontal edges which connect the so-called clean vertical edges 20A, 20B, formed by the lateral faces of the light guides 30, with the vertical edges 22A, 22B called fuzzy, formed by the bridges 40.
  • the primary optical element 26 also includes a second row of light guides 42 which make it possible to obtain the complementary light patterns 17 of rectangular shape delimited transversely by so-called sharp vertical edges over their entire height.
  • These complementary light patterns 17, represented in figure 2 are intended to illuminate above the road only.
  • the light guides 30 remain separated from each other by a space over their entire vertical height.
  • a portion of the exit face 38 of the lens 36 before the primary optical element 26 has means for transverse spreading of the rays intended to illuminate the lower portion 18B of the light pattern 18.
  • the exit face 38 is sufficiently close to the focal plane of the system, for example the exit face is arranged at a distance from the focal plane of between 2% and 20 % of system focal length. In this way, a diffraction or refraction structure placed on an upper part of the output face 38 only affects a lower part of the light pattern 18.
  • the light spreading means are for example formed by diffraction or refraction structures produced in relief on a portion of the exit face 38.
  • the diffraction or refraction structures are for example shaped into cushions 44.
  • the spreading means are formed by graining the corresponding parts of the outlet face.
  • the diffraction or refraction structures are formed by streaks, undulations, prisms or any other shape adapted to carry out the light spreading function.
  • the primary element comprises a light-shaping sheet structure, as in the first embodiment and in claim 1 below, of which the exit face includes means for spreading the light, as in the alternative presented in the Figure 12 .
  • This embodiment of the invention thus combines the characteristics of the first embodiment of the invention and of the alternative.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Claims (10)

  1. Beleuchtungsmodul (19) für einen Scheinwerfer (12) eines Kraftfahrzeugs, umfassend eine Mehrzahl von Lichtquellen (28) und ein primäres optisches Element (26), um mehrere Lichtmuster (18) zu bilden, die quer anstoßend aneinandergereiht sind und unabhängig voneinander gesteuert werden, um zur Bildung eines gepixelten Lichtstrahls (14) beizutragen,
    wobei das primäre optische Element (26) der Mehrzahl von Lichtquellen (28) zugeordnet ist, von denen jede einem Lichtmuster (18) zugeordnet ist, wobei jedes Lichtmuster (18) in einen oberen Abschnitt (18A) und einen unteren Abschnitt (18B) unterteilt ist, die gleichzeitig und untrennbar beleuchtet werden, wobei der obere Abschnitt (18A) quer durch zwei vertikale Ränder (20A, 20B) begrenzt wird, bei denen jeweils die Lichtintensität nach einem bestimmten ersten Gradienten (G1) abnimmt, und wobei der untere Abschnitt (18B) quer durch zwei vertikale Ränder (22A, 22B) begrenzt wird, bei denen jeweils die Lichtintensität nach einem bestimmten zweiten Gradienten (G2) abnimmt, der kleiner als der bestimmte erste Gradient (G1) ist,
    wobei das primäre optische Element (26) Lichtleiter (30) umfasst, von denen jeder einer oder mehreren Lichtquellen (28) zugeordnet ist, und eine Austrittsfläche (38) des Lichts, wobei jeder Lichtleiter (30) sich im Wesentlichen längs von einer hinteren Eintrittsfläche (32) des von einer zugeordneten Lichtquelle (28) ausgesendeten Lichts bis zu einer vorderen Austrittsfläche (34) des Lichts erstreckt, wobei das primäre optische Element (26) auch eine vordere Linse (36) umfasst, die längs nach vorne hin durch eine Fläche (38) zur Formung der Lichtmuster (18) begrenzt wird und nach hinten hin mit einer quer verlaufenden vertikalen Fläche, die mit der Ebene der Austrittsflächen (34) der Lichtleiter (30) zusammenfällt,
    wobei das Beleuchtungsmodul (19) dadurch gekennzeichnet ist, dass jeder Lichtleiter (30) einen rechteckigen Querschnitt aufweist und somit zwei vertikale Seitenflächen (35) und zwei obere und untere Flächen aufweist,
    wobei der untere Teil (18B) der Lichtmuster (18) ausgeführt wird, indem ein oberer Abschnitt jeder Seitenfläche (35) jedes Lichtleiters (30) mit den Seitenflächen (35) der angrenzenden Lichtleiter (30) über eine quer verlaufende Brücke (40) verbunden wird, die materialeinheitlich einstückig mit den Lichtleitern ausgeführt ist, wobei jede Brücke (40) quer in Überdeckung mit dem oberen Abschnitt (34B) der Austrittsfläche der Lichtleiter (30) angeordnet ist, wobei die so durch die Brücken (40) verbundenen oberen Teile der Lichtleiter (30) eine einzige Lage zur Formung des Lichts bilden, die sich quer über die gesamte Reihe der Lichtleiter (30) erstreckt, und eine einzige Austrittsfläche (34B) aufweisen, die sich quer entlang der gesamten Reihe von Lichtleitern (30) erstreckt, wobei der obere Teil (18A) der Lichtmuster (18) durch Abschnitte der Seitenflächen (35) der Lichtleiter (30) ausgeführt wird, die quer voneinander getrennt sind.
  2. Beleuchtungsmodul (19) nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass der bestimmte erste Gradient (G1) größer als 0,13 ist, bevorzugt größer als 0,30, wobei der erste Gradient (G1) dem maximalen Wert von G(α)= log( I (α + 0,05°)) - log( I (α - 0,05°)) entspricht, der erhalten wird, indem man G(α) für jeden Punkt eines horizontalen Segments berechnet, das sich beidseits des betrachteten vertikalen Rands erstreckt, wobei α der Winkel gemäß einer horizontalen Achse des Punkts des durchlaufenen Segments ist und I die Intensität des Lichtstrahls für den betrachteten Winkel ist.
  3. Beleuchtungsmodul (19) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der bestimmte zweite Gradient (G2) kleiner als 0,2 ist, bevorzugt kleiner als 0,13, wobei der zweite Gradient (G2) dem maximalen Wert von G(α)= log( I (α + 0,05°)) - log( I (α - 0,05°)) entspricht, der erhalten wird, indem man G(α) für jeden Punkt eines horizontalen Segments berechnet, das sich beidseits des betrachteten vertikalen Rands erstreckt, wobei α der Winkel gemäß einer horizontalen Achse des Punkts des durchlaufenen Segments ist und I die Intensität des Lichtstrahls für den betrachteten Winkel ist.
  4. Beleuchtungsmodul (19) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass mindestens ein vertikaler Rand (22A, 22B) des unteren Abschnitts (18B) in der vertikalen Verlängerung des vertikalen Rands (20A, 20B) des oberen Abschnitts (18A) angeordnet ist.
  5. Beleuchtungsmodul (19) nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass die beiden vertikalen Ränder (22A, 22B) des unteren Abschnitts (18B) in der Verlängerung jedes vertikalen Rands (20A, 20B) des oberen Abschnitts (18A) angeordnet sind.
  6. Beleuchtungsmodul (19) nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass mindestens ein vertikaler Rand (22A, 22B) des unteren Abschnitts (18B) in Bezug auf den entsprechenden vertikalen Rand (20A, 20B) des oberen Abschnitts (18A) quer versetzt ist, wobei der vertikale Rand (22A, 22B) mit dem vertikalen Rand (20A, 20B) durch einen horizontalen Rand (24A, 24B) verbunden ist.
  7. Beleuchtungsmodul (19) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Lichtmuster (18) über eine Feldbreite von weniger als 20°, insbesondere weniger als 15° und vor allem weniger als 10° beleuchtet.
  8. Beleuchtungsmodul (19) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Austrittsfläche (38) des primären optischen Elements (26) Mittel (44) zur Querspreizung der Strahlen aufweist, die dazu bestimmt sind, den unteren Teil (18B) des Lichtmusters (18) zu beleuchten.
  9. Beleuchtungsmodul (19) nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass die Mittel zum Spreizen des Lichts durch brechende oder beugende Strukturen gebildet werden, die an der Austrittsfläche (38) ausgeführt sind, wie etwa Strukturen in Form von Kissen (44), eine Körnung, Rillen, Welligkeiten, Prismen.
  10. Scheinwerfer (12) eines Kraftfahrzeugs, der mindestens ein Beleuchtungsmodul (19) umfasst, das nach einem der vorhergehenden Ansprüche ausgeführt ist.
EP18196923.9A 2017-10-13 2018-09-26 Beleuchtungsmodul, das ein lichtmuster bildet, dessen oberer teil scharfe vertikale kanten und dessen unterer teil unscharfe vertikale kanten aufweist Active EP3470727B1 (de)

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FR1759636A FR3072446B1 (fr) 2017-10-13 2017-10-13 "module d'eclairage formant un motif lumineux divise en une portion superieure nette et une portion inferieure floue"

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FR3087875B1 (fr) * 2018-10-25 2021-07-30 Valeo Vision Module lumineux pour dispositif d'eclairage de vehicule
TWI778651B (zh) * 2021-06-07 2022-09-21 揚明光學股份有限公司 車用投影鏡頭及車燈裝置

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FR2911310B1 (fr) * 2007-01-12 2009-04-17 Valeo Vision Sa Projecteur lumineux de type bifonction pour vehicule automobile
FR2921999B1 (fr) * 2007-10-04 2011-05-06 Valeo Vision Dispositif d'eclairage ou de signalisation pour vehicule automobile.
JP5698065B2 (ja) * 2011-04-22 2015-04-08 株式会社小糸製作所 障害物検出装置
DE102011077636A1 (de) * 2011-04-27 2011-11-03 Automotive Lighting Reutlingen Gmbh Lichtmodul eines Kraftfahrzeugs zur Erzeugung einer Spotverteilung einer Fernlicht-Lichtverteilung und Kraftfahrzeugscheinwerfer mit einem solchen Modul
DE202011103805U1 (de) * 2011-04-27 2011-11-30 Automotive Lighting Reutlingen Gmbh Lichtmodul eines Kraftfahrzeugs zur Erzeugung einer Grundverteilung für eine Fernlicht-Lichtverteilung
AT511760B1 (de) * 2011-08-08 2013-12-15 Zizala Lichtsysteme Gmbh Led-lichtquellenmodul für einen led-kraftfahrzeugscheinwerfer sowie led-kraftfahrzeugscheinwerfer und scheinwerfersystem
DE102012213845B4 (de) 2012-08-03 2015-05-28 Automotive Lighting Reutlingen Gmbh Lichtleitelement und Lichtmodul
AT513341B1 (de) * 2012-09-03 2015-06-15 Zizala Lichtsysteme Gmbh Leuchteinheit für einen Scheinwerfer
AT513738B1 (de) * 2012-12-20 2014-07-15 Zizala Lichtsysteme Gmbh Leuchteinheit für einen Scheinwerfer
AT514785B1 (de) * 2013-09-03 2021-11-15 Zkw Group Gmbh Optische Struktur mit einer Mikrostruktur mit quadratischer Streufunktion
AT514784B1 (de) * 2013-09-03 2021-10-15 Zkw Group Gmbh Optische Struktur für eine Beleuchtungsvorrichtung für einen Kraftfahrzeugscheinwerfer
DE102014216545B4 (de) * 2014-08-20 2017-04-27 Automotive Lighting Reutlingen Gmbh Scheinwerfervorrichtung mit rechts und links unterschiedlichen Fernlichtmodulen
AT516965B1 (de) * 2015-03-25 2016-12-15 Zkw Group Gmbh Beleuchtungsvorrichtung für Fahrzeugscheinwerfer
JP6114485B1 (ja) * 2015-05-22 2017-04-12 三菱電機株式会社 前照灯モジュール及び前照灯装置
AT517523B1 (de) * 2015-07-28 2017-09-15 Zkw Group Gmbh Leuchteinrichtung für einen KFZ-Scheinwerfer
FR3041738B1 (fr) * 2015-09-28 2020-01-17 Valeo Vision Element optique primaire pour module lumineux de vehicule automobile
JP6709654B2 (ja) * 2016-03-25 2020-06-17 株式会社小糸製作所 車両用灯具、および当該車両用灯具を備えた車両

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CN109668108B (zh) 2022-02-18
EP3470727A1 (de) 2019-04-17
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US10473285B2 (en) 2019-11-12
CN109668108A (zh) 2019-04-23
FR3072446B1 (fr) 2021-06-25

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