EP2742280B1 - Module de sources lumineuses à del pour un projecteur de véhicule - Google Patents

Module de sources lumineuses à del pour un projecteur de véhicule Download PDF

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Publication number
EP2742280B1
EP2742280B1 EP12740282.4A EP12740282A EP2742280B1 EP 2742280 B1 EP2742280 B1 EP 2742280B1 EP 12740282 A EP12740282 A EP 12740282A EP 2742280 B1 EP2742280 B1 EP 2742280B1
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EP
European Patent Office
Prior art keywords
light
light source
led light
exit surfaces
source module
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Active
Application number
EP12740282.4A
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German (de)
English (en)
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EP2742280A1 (fr
Inventor
Johannes Jungwirth
Andreas Moser
Günther Krenn
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ZKW Group GmbH
Original Assignee
Zizala Lichtsysteme GmbH
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141—Light emitting diodes [LED]
    • F21S41/143—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
    • F21S41/10—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
    • F21S41/24—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
    • F21S41/60—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

Definitions

  • the invention relates to an LED light source module for an LED motor vehicle headlight, in particular for an LED motor vehicle headlight for generating a dynamic light distribution, wherein the LED light source module comprises two or more LED light sources, wherein an LED light source respectively from at least one light emitting diode, and wherein the light-emitting diodes of each LED light source couple light into an associated primary optic element, wherein the coupled-in light exits at least partially from a light exit surface of the primary optic element.
  • the invention further relates to a headlamp with such an LED light source module and a corresponding headlamp system.
  • light-emitting diodes are increasingly being used for the realization of main headlamp functions, such as e.g. for generating low beam and / or high beam but also of other light functions, such as motorway light, bad weather and daytime running lights.
  • headlight LED light sources are also particularly well suited for special applications, such as object lighting, where only certain LED light sources are visible or emit light, while the remaining LED light sources emit no light.
  • object lighting for example, objects on the roadside, such as pedestrians, but also traffic signs, with light, e.g. with infrared light, illuminated, and these objects can then be captured with an infrared camera.
  • visible light such as traffic sign lighting can be used.
  • the above tasks can be realized by selective activation or in the latter case by selectively deactivating certain LED light sources.
  • such a headlamp can be realized with conventionally available LED light sources.
  • individual light functions such as low beam, high beam, cornering light, etc.
  • the luminous area is divided into segments which can be switched separately.
  • the light originating from the LEDs is projected onto the roadway as a segmented light distribution via the individual primary optics, which form the individual segments of the light exit surfaces, and the associated secondary optics.
  • WO 2007/027474 A2 discloses a generic LED light source module for an LED power headlamp.
  • the light exit surfaces of the primary optic elements lie in a common area, and that the light exit surface of the translucent material also lies in the common area of the light exit surfaces of the primary optic elements.
  • This common surface is formed either as a plane or curved according to the field curvature of the secondary optics.
  • a part of the light entering a primary optic element is no longer emitted via the light exit surface of the primary optic element itself, but enters the light-transmissive material and exits via its light exit surface.
  • a part of the light which enters the primary optics element mixes and reduces or eliminates the inhomogeneities in the light image.
  • the light emerging from the translucent material thus contributes to the distribution of light.
  • the light exit surfaces of the primary optic elements are connected to one another in an upper and / or lower region.
  • the primary optic elements are in any case connected to one another in the upper region.
  • the terms “top” and “bottom” refer to the state of the module / headlamp installed in the vehicle.
  • This upper area is imaged via the secondary optics in the light image below the cut-off line, where the unwanted inhomogeneities occur first or most.
  • the compound in the lower region is of less importance optically and has advantages, especially in mechanical terms, in order to increase the stability of the entire element formed by the individual primary optic elements.
  • At least one substantially horizontally extending connecting web which is formed from the translucent material, is provided, which connects the primary optics elements in the upper and / or lower region of their light exit surfaces.
  • the at least one connecting web is formed integrally with the light exit surfaces of the primary optic elements or with the primary optic elements, i. the individual primary optic elements and the connecting bridge or links form a single element, the so-called primary optic.
  • the light exit surfaces of the primary optic elements and those of the at least one connecting web form a common light exit surface, i. that they lie in a common plane and preferably also without interruption, i. without a gap, etc., are interconnected.
  • the at least one connecting web extends in the vertical direction upwards / downwards in each case over a certain, defined height beyond the light exit surfaces of the primary optics elements.
  • the at least one connecting web extends in the horizontal direction to the rear in the direction of the light sources and is connected to the primary optics over a certain extent.
  • the design of the one or more connecting webs in particular the extension of the / the connecting web (s) to the rear has on the one hand effects on the homogeneity of the light image, which on the other hand with a reduction of the maximum in the light distribution, ie, the more homogeneous the light image is selected more strongly the maximum is reduced.
  • the extension of the at least one connecting web downwards / upwards and / or the outward extension of the at least one connecting web laterally beyond the light exit surfaces of the primary optics and / or the extension of the at least one connecting web in the horizontal direction to the rear, in particular, the extension, via which the at least one connecting web is connected to the primary optical elements, is / are selected such that the desired degree with respect to the homogeneity of the photoimage and the desired degree of reduction of the maximum in the light distribution result.
  • the at least one, in particular the upper, connecting web in the direction of the light coupling points of the primary optic elements is designed to be, for example, wedge-shaped, tapered.
  • the wedge shape can save material, which leads to a cost reduction. This applies in particular, the farther the connecting bridge extends to the rear.
  • a cuboid, that is, not tapered configuration of the connecting web brings in optical terms no advantages over the tapered shape, so that the latter is chosen with advantage.
  • the primary optic elements expand from their light coupling points to the light exit surfaces, with the primary optic elements expanding more towards the bottom than towards the top.
  • the primary optic elements have e.g. a wedge-shaped shape, wherein the element rises more towards the bottom.
  • light exit surfaces of different shapes e.g. be used with different widths (horizontal extent).
  • certain areas of the light distribution can be generated with narrower light exit surfaces, resulting in a finer segmentation of the light image there and smaller or narrower areas can be hidden.
  • the light exit surfaces of the primary optic elements are arranged parallel to one another and with identical orientation.
  • the light exit surfaces of the primary optic elements of an LED light source module are arranged at a horizontal distance next to each other.
  • each LED light source module is associated with secondary optics, which image the light segments generated by the light exit surfaces of the primary optics elements-in the vehicle-mounted state of the headlight-in a region located in front of the vehicle.
  • a homogeneous light distribution such as a high beam distribution can be generated by corresponding horizontal juxtaposition and / or superposition of the individual light segments, from which light distribution by switching off one or more LED Light sources very specific areas of light distribution "hidden", ie can not be illuminated, for example, to avoid dazzling oncoming traffic.
  • the individual light segments can be arranged directly adjacent to one another in the horizontal direction.
  • one or more other light segments can additionally be superimposed in such regions of abutting light segments. This also has the advantage that, as discussed later in detail, by fading out e.g. two light segments areas of the light distribution can be "hidden" or not illuminated, which are narrower than a light segment.
  • the light exit surfaces are vertically standing, of greater height than width, e.g. in the form of rectangles or ellipses etc.
  • adjacent light exit surfaces of the primary optics elements of an LED light source module have a normal distance from each other, which corresponds to the width of a light exit surface, and preferably a first overall arrangement of the light exit surfaces occupies a first defined position with respect to the optical axis of their secondary optics , and wherein a second / third / fourth-nth overall arrangement with respect to the optical axis of its secondary optics by half / single / double / quadruple / ((n-1) / 2) compared to the first overall arrangement times the normal distance between two adjacent light exit surfaces of an LED light source module is shifted.
  • the distances between light exit surfaces of adjacent primary optic elements are identical.
  • An inventive LED motor vehicle headlight for generating a dynamic light distribution comprises two or more LED light source modules as described above, wherein each of the LED light source modules is associated with a secondary optics, which generated by the light exit surfaces of the primary optics elements light segments - im in a Vehicle installed state of the headlamp - in an area lying in front of the vehicle maps.
  • the secondary optics elements of the LED light source modules and the arrangement of the light exit surfaces of the primary optics elements prefferably be matched to one another in such a way that the light segments from the individual LED light source modules are offset from one another in the horizontal direction, and the individual LED Light sources are controlled separately.
  • all distances between light exit surfaces of adjacent LED light sources over the entire headlight are identical, resulting in a simple structure with identical modules, with which a basically homogeneous possible light distribution can be achieved.
  • the photograph can be further improved significantly.
  • the overall arrangement of the light exit surfaces of an LED light source module with respect to the optical axis of Sekundäroptikiatas occupies a defined position in the horizontal direction, and wherein the different overall arrangements of the individual LED light source modules from each other different defined position in have horizontal direction with respect to the optical axis of their respective associated Sekundäroptikimplantations.
  • the light exit surfaces of all LED light source modules of the headlamp are each arranged on one side of a vertical plane through the optical axis of their respective associated secondary optics.
  • an LED light source comprises at least two LEDs arranged horizontally one above the other, which light emitting diodes are independently controllable, and wherein each of the at least two light emitting diodes on the light exit surface of the primary optics as horizontal light segments - within the vertical light segment imaged by the primary optics - imaged become.
  • each LED of an LED light source can be controlled separately.
  • a vehicle headlamp system with two headlamps it is provided that in a vehicle mounted state left headlights on the road the left part of the light distribution and the right headlights generates the right part of the light distribution, and wherein at least each LED light source, preferably each LED of the two headlights can be controlled separately.
  • FIG. 1 shows a headlight SW with four LED light source module M1 - M4, for example, an LED motor vehicle headlight SW, such as an LED motor vehicle headlight for generating a dynamic light distribution.
  • LED light source modules M1-M4 is assigned a secondary optics element S1-S4, for example in the form of a lens, which projects the light emerging from the assigned module onto the roadway.
  • An LED light source module M is in FIG. 2 and FIG. 3 shown in detail and has two or more, in the example shown four LED light sources LEQ on.
  • An LED light source LEQ in turn, consists of at least one light-emitting diode, in the example shown, two light-emitting diodes LED1, LED2.
  • the light-emitting diodes LED1, LED2 of each LED light source LEQ are each assigned a primary optics element P1-P4, into which this light is coupled.
  • the coupled-in light emerges at least partially from the light exit surface L1-L4 of the primary optic element P1-P4.
  • the primary optic elements P1-P4 are interconnected by means of two webs VS1, VS2, as will be discussed in detail below, and form a common component, a so-called primary optics PG.
  • the LED light sources LEQ are arranged on a LED-Print PRI.
  • the primary optics PG is fastened with a holder HAL on the LED print PRI, furthermore a positioning element POS is provided for positioning the primary optics PG with respect to the LED print.
  • the light exit surfaces L1-L4 of the primary optics elements P1-P4 of an LED light source module M are connected to one another by means of a transparent material so that the light coupled into the primary optics elements P1-P4 enters the light-transmissive material and via their light exit surface (s) LF1 , LF2 can escape from this again.
  • an LED light source module In a specific variant of an LED light source module is provided that two substantially horizontally extending connecting webs VS1, VS2, which from the translucent Material is formed, are present, which connects the Primärroptikieri P1 - P4 in the upper and lower regions of their light exit surfaces L1 - L4 together.
  • the light exit surfaces L1 - L4 of the primary optics elements P1 - P4 and the light exit surfaces LF1, LF2 of the webs VS1, VS2 lie in a common area.
  • This common surface is either formed as shown as a plane or curved in accordance with the field curvature of Sekundäroptikimplantation.
  • a part of the light entering a primary optic element is no longer emitted via the light exit surface of the primary optic element itself, but enters the light-transmissive material and exits via its light exit surface.
  • a part of the light which enters the primary optics element mixes and reduces or eliminates the inhomogeneities in the light image.
  • the light emerging from the translucent material thus contributes to the distribution of light.
  • the primary optic elements are preferably connected to one another in the upper region.
  • the terms “top” and “bottom” refer to the state of the module / headlamp installed in the vehicle.
  • This upper area is imaged via the secondary optics in the light image below the cut-off line, where the unwanted inhomogeneities most disturb.
  • Unilateral feed is to be understood as meaning that the light is coupled in further above and not exactly in the geometric center of the light coupling point of the primary optics elements.
  • the compound in the lower region is of less importance optically and has advantages, especially in mechanical terms, in order to increase the stability of the entire element formed by the individual primary optic elements.
  • the upper web VS1 on the one hand in terms of optical as well as in mechanical terms of importance, while the lower web VS2 mainly from a mechanical point of importance.
  • the connecting webs VS1, VS2 are formed integrally with the light exit surfaces L1 - L4 of the primary optic elements P1 - P4 and with the primary optic elements P1 - P4, respectively.
  • the individual primary optic elements and the connecting bridge or links form a single element, the so-called primary optic PG.
  • the light exit surfaces L1 - L4 of the primary optic elements P1 - P4 and those of the connecting webs VS1, VS2 form a common light exit surface, i. they form a continuous, approximately flat surface as shown.
  • FIG. 4 shows, in a specific embodiment of the primary optics PG, the light exit surfaces L1 - L4 of the primary optics P1 - P4 standing in the vertical direction, preferably with a greater height h than width b, formed, for example in the form of rectangles or ellipses etc.
  • Adjacent light exit surfaces L1 - L4 of the primary optics elements P1 - P4 of an LED light source module M have a normal distance A from one another which, for example, corresponds to the width b of a light exit surface L1-L4.
  • the connecting webs VS1, VS2 in the vertical direction upwards (upper web VS1) and downwards (web VS2) in each case over a certain, defined height h1, h2 via the light exit surfaces L1 - L4 of the primary optic elements P1 - P4 extend ( FIG. 4 ).
  • connecting webs VS1, VS2 extend in a horizontal direction laterally over a certain length 11, 12 beyond the light exit surfaces L1-L4 of the primary optics P1-P4.
  • h1 h2.
  • the extent 11 in the upper region must be sufficiently selected so that there are no inhomogeneities in the superimposition of the light images of the individual light modules.
  • FIG. 5 shows in particular the light coupling points or areas LK1 - LK4.
  • These light coupling points may be flat as shown, but may also have a convex and / or concave, that is a light collecting and / or scattering structure.
  • FIG. 6 shows a vertical section along the in FIG. 4 dot-dash line through a primary optic PG.
  • the upper connecting web VS1 extends in horizontal direction to the rear to the light sources or LEDs LED1, LED2 out over a certain extent ES.
  • the design of the one or more connecting webs in particular the extension of the / the connecting web (s) to the rear has on the one hand effects on the homogeneity of the light image, which on the other hand with a reduction of the maximum in the light distribution, ie, the more homogeneous the light image is selected more strongly the maximum is reduced.
  • the web VS2 has a similar / identical extent, but this primarily from mechanical and / or manufacturing aspects, which is why the optical implications are explained with reference to the upper web VS1.
  • LEDs LED1, LED2 propagates in the primary optic elements (here: element P3) as a result of total reflection. So that a sufficient amount of light in the translucent Areas, ie, in the or the connecting webs can occur, it is therefore favorable as described above, if they are connected over a certain extent with the primary optics - in the sense of contact with each other, preferably interconnected, in particular in one piece - are.
  • the light beams LS1, LS2 could not enter the web VS1 and exit via its light exit surface LF1, but would be reflected (LS1', LS2 '). ) and exit via the light exit surface L3 of the primary optic element P3 (undesirably).
  • FIG. 8 shows a variant in which the web VS1 extends over a still larger area ES to the rear, in addition, the upper connecting web VS1 is tapered in the direction of the Lichteinkoppelstellen the Primäräptiketti out.
  • the connecting web or its extent ES backwards reduces the maximum of the illuminance. Therefore, extension the backward extension ES represents a compromise between maximum and homogeneity. The more homogeneous the light distribution should be, the greater are the losses at the maximum (Hmax) of the light distribution.
  • the homogenization effects achieved by the connecting web thus depend on the extent of the extent ES to the rear.
  • the tapered shape has no visual impact, but saves material. From a purely optical point of view but would also be a cuboid shape of the connecting web possible.
  • light rays may enter the web VS1 even earlier, i. it gets even more light in the connecting web VS1 and exits from the light exit surface LF1 again.
  • FIG. 9 shows here also more light in the areas "between" the primary optic elements.
  • FIG. 10 now shows the entire light exit surface of the primary optics PG without connecting webs (as in the application AT 508604 )
  • FIG. 11 shows the light exit surface of a primary optic element PG Figure 4-7
  • FIG. 12 a primary optic PG after FIGS. 8 and 9 ,
  • the light emerging from these light exit surfaces is projected onto the carriageway via the secondary optics elements.
  • asymmetrical feeding means that the light is coupled in at the top and not exactly in the geometric center of the light coupling point of the primary optics elements. Accordingly, as in the Figures 10 - 12 shown that the Hmax area is located in the upper area on the decoupling surface and not in the center.
  • FIG. 10 which represents the state of the art, there are no connecting webs. Due to the secondary optics (projection lens), the occurring light distribution at the decoupling surface of the primary optics is reproduced exactly. In the illustrated primary optics so exactly 4 light fingers (4 segments) are generated and filled the spaces with the light fingers of another module. At the edges below (and also above) there are strong inhomogeneities in the overlay, which leads to fraying of the light image.
  • H1 areas almost touch each other.
  • the overlapping of the gaps with the light fingers of another module results in a homogeneous light distribution.
  • H1 areas of adjacent light modules overlap almost completely.
  • FIG. 13 shows a light distribution with LED light source modules with primary optics according to the prior art ( FIG. 10 )
  • FIG. 14 a light distribution with LED light source modules with primary optics accordingly FIG. 11
  • FIG. 15 a light distribution with LED light source modules with primary optics accordingly FIG. 12 ,
  • the light distribution shown is a low beam distribution, but the effects also occur in other light distribution, such as in a high beam distribution.
  • a strong inhomogeneity STE1 occurs in the light image LVE1 in advance (FIG. FIG. 13 ), this inhomogeneity STE2 is already considerably smaller in the light image LVE2, and in the light image LVE3 (FIG. FIG. 15 ) is almost no inhomogeneity formed.

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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)
  • Led Device Packages (AREA)

Claims (25)

  1. Module de sources lumineuses à DEL (M, M1 - M4) pour un projecteur de véhicule automobile à DEL (SW), en particulier pour un projecteur de véhicule automobile à DEL (SW) destiné à produire une répartition de lumière dynamique,
    dans lequel le module de sources lumineuses à DEL (M) comprend deux ou plusieurs sources lumineuses à DEL (LEQ),
    dans lequel une source lumineuse à DEL (LEQ) se compose respectivement d'au moins une diode électroluminescente (LED1, LED2), et dans lequel les diodes électroluminescentes (LED1, LED2) de chaque source lumineuse à DEL (LEQ) injectent de la lumière dans un élément optique primaire (P1 - P4) correspondant, dans lequel la lumière injectée ressort au moins partiellement d'une surface de sortie de lumière (L1 - L4) de l'élément optique primaire (P1 - P4),
    caractérisé en ce que
    les surfaces de sortie de lumière (L1 - L4) des éléments optiques primaires (P1 - P4) d'un module de sources lumineuses à DEL (M ; M1, M2, M3, M4) sont agencées les unes à côté des autres selon un intervalle horizontal (A) et
    est prévue au moins une entretoise de liaison (VS1, VS2) s'étendant de manière sensiblement horizontale et formée du matériau translucide, qui relie les éléments optiques primaires (P1 - P4) les uns aux autres dans la zone supérieure et/ou inférieure de leurs surfaces de sortie de lumière (L1 - L4),
    de sorte que de la lumière injectée dans les éléments optiques primaires (P1 - P4) peut entrer dans le matériau translucide de l'au moins une entretoise de liaison (VS1, VS2) et peut en ressortir par une surface de sortie de lumière (LF1, LF2) de l'au moins une entretoise de liaison (VS1, VS2).
  2. Module de sources lumineuses à DEL selon la revendication 1, caractérisé en ce que les surfaces de sortie de lumière (L1 - L4) des éléments optiques primaires (P1 - P4) se trouvent dans une surface commune, et en ce que la surface de sortie de lumière (LF1, LF2) du matériau translucide se trouve également dans la surface commune des surfaces de sortie de lumière des éléments optiques primaires.
  3. Module de sources lumineuses à DEL selon la revendication 1 ou 2, caractérisé en ce que les surfaces de sortie de lumière (L1 - L4) des éléments optiques primaires (P1 - P4) sont reliées les unes aux autres dans une zone supérieure et/ou inférieure.
  4. Module de sources lumineuses à DEL selon l'une des revendications 1 à 3, caractérisé en ce que sont prévues deux entretoises de liaison (VS1, VS2) s'étendant de manière sensiblement horizontale et formées du matériau translucide, qui relient les éléments optiques primaires (P1 - P4) les uns aux autres dans la zone supérieure et inférieure de leurs surfaces de sortie de lumière (L1 - L4).
  5. Module de sources lumineuses à DEL selon l'une des revendications 1 à 4, caractérisé en ce que l'au moins une entretoise de liaison (VS1, VS2) est formée monobloc avec les surfaces de sortie de lumière (L1 - L4) des éléments optiques primaires (P1 - P4) ou avec les éléments optiques primaires (P1 - P4).
  6. Module de sources lumineuses à DEL selon l'une des revendications 1 à 5, caractérisé en ce que les surfaces de sortie de lumière (L1 - L4) des éléments optiques primaires (P1 - P4) et celle de l'au moins une entretoise de liaison (VS1, VS2) forment une surface de sortie de lumière commune.
  7. Module de sources lumineuses à DEL selon l'une des revendications 1 à 6, caractérisé en ce que l'au moins une entretoise de liaison (VS1, VS2) s'étend en direction verticale vers le haut/bas sur une certaine hauteur (hl, h2) au-delà des surfaces de sortie de lumière (L1 - L4) des éléments optiques primaires (P1 - P4).
  8. Module de sources lumineuses à DEL selon l'une des revendications 1 à 7, caractérisé en ce que l'au moins une entretoise de liaison (VS1, VS2) s'étend en direction horizontale, latéralement sur une certaine longueur (11, 12) au-delà des surfaces de sortie de lumière (L1 - L4) des éléments optiques primaires (P1 - P4).
  9. Module de sources lumineuses à DEL selon l'une des revendications 1 à 8, caractérisé en ce que l'au moins une entretoise de liaison (VS1, VS2) s'étend en direction horizontale vers l'arrière en direction des sources lumineuses (LEQ) et est reliée aux éléments optiques primaires (P1 - P4) sur une certaine étendue (ES), dans lequel de préférence l'au moins une, en particulier l'entretoise de liaison supérieure (VS1) est formée d'une manière qui va en rétrécissant, par exemple en forme de coin, en direction des points d'injection de lumière (LK1 - LK4) des éléments optiques primaires (P1 - P4).
  10. Module de sources lumineuses à DEL selon l'une des revendications 1 à 9, caractérisé en ce que les éléments optiques primaires (P1 - P4) vont en s'évasant depuis leurs points d'injection de lumière (LK1 - LK4) jusqu'aux surfaces de sortie de lumière (L1 - L4), dans lequel les éléments optiques primaires (P1 - P4) s'évasent plus fortement vers le bas que vers le haut.
  11. Module de sources lumineuses à DEL selon l'une des revendications 1 à 10, caractérisé en ce que les surfaces de sortie de lumière (L1 - L4) des éléments optiques primaires (P1 - P4) sont formées rectangulaires et/ou les surfaces de sortie de lumière (L1 - L4), debout en direction verticale, sont formées avec une hauteur (h) supérieure à leur largeur (b).
  12. Module de sources lumineuses à DEL selon l'une des revendications 1 à 11, caractérisé en ce que toutes les surfaces de sortie de lumière (L1 - L4) présentent une forme identique.
  13. Module de sources lumineuses à DEL selon l'une des revendications 1 à 12, caractérisé en ce que les surfaces de sortie de lumière (L1 - L4) des éléments optiques primaires (P1 - P4) sont agencées parallèlement les unes aux autres et selon une orientation identique.
  14. Module de sources lumineuses à DEL selon l'une des revendications 1 à 13, caractérisé en ce qu'une optique secondaire (S1, S2, S3, S4) est affectée au module de sources lumineuses à DEL (M ; M1, M2, M3, M4), qui reproduit les segments de lumière produits par les surfaces de sortie de lumière (L1 - L4) des éléments optiques primaires (P1 - P4) - à l'état de montage du projecteur (SW) dans un véhicule - dans une zone située en avant du véhicule.
  15. Module de sources lumineuses à DEL selon l'une des revendications 1 à 14, caractérisé en ce que des surfaces de sortie de lumière (L1 - L4) adjacentes des éléments optiques primaires (P1 - P4) d'un module de sources lumineuses à DEL (M ; M1, M2, M3, M4) présentent un intervalle normal (A) les unes par rapport aux autres, qui correspond à la largeur (B) d'une surface de sortie de lumière (L1 - L4).
  16. Module de sources lumineuses à DEL selon l'une des revendications 1 à 15, caractérisé en ce que, en cas de présence de trois éléments optiques primaires (P1 - P4) ou plus, les intervalles (A) entre les surfaces de sortie de lumière (L1 - L4) d'éléments optiques primaires (P1 - P4) adjacents sont identiques.
  17. Module de sources lumineuses à DEL selon l'une des revendications 1 à 16, caractérisé en ce que l'étendue de l'au moins une entretoise de liaison (VS1, VS2) vers le bas/haut et/ou l'étendue de l'au moins une entretoise de liaison (VS1, VS2) latéralement au-delà des surfaces de sortie de lumière (L1 - L4) des éléments optiques primaires et/ou l'étendue de l'au moins une entretoise de liaison (VS1, VS2) en direction horizontale vers l'arrière, en particulier l'étendue (ES) sur laquelle l'au moins une entretoise de liaison (VS1, VS2) est reliée aux éléments optiques primaires (P1 - P4), est/sont sélectionnée(s) de telle sorte qu'il en résulte le degré souhaité concernant l'homogénéité de la photo et le degré souhaité de réduction du maximum dans la répartition de lumière.
  18. Projecteur de véhicule automobile à DEL (SW) destiné à produire une répartition de lumière dynamique, comprenant deux ou plusieurs modules de sources lumineuses à DEL (M ; M1, M2, M3, M4) selon l'une des revendications 1 à 19, dans lequel une optique secondaire (S1, S2, S3, S4) est affectée à chacun des modules de sources lumineuses à DEL (M ; M1, M2, M3, M4), qui reproduit les segments de lumière produits par les surfaces de sortie de lumière (L1 - L4) des éléments optiques primaires (P1 - P4) - à l'état de montage du projecteur (SW) dans un véhicule - dans une zone située en avant du véhicule, dans lequel de préférence les éléments optiques secondaires (S1, S2, S3, S4) des modules de sources lumineuses à DEL (M ; M1, M2, M3, M4) et l'agencement des surfaces de sortie de lumière (L1 - L4) des éléments optiques primaires sont coordonnés de telle sorte que les segments de lumière issus des modules de sources lumineuses à DEL (M ; M1, M2, M3, M4) individuels sont reproduits en quinconce les uns par rapport aux autres en direction horizontale, et dans lequel les sources lumineuses à DEL individuelles peuvent être commandées séparément.
  19. Projecteur selon la revendication 18, caractérisé en ce que les modules de sources lumineuses à DEL (M ; M1, M2, M3, M4) individuels présentent des éléments optiques secondaires (S1, S2, S3, S4) identiques.
  20. Projecteur selon l'une des revendications 18 ou 19, caractérisé en ce que tous les intervalles (A) entre les surfaces de sortie de lumière (L1 - L4) de sources lumineuses à DEL adjacentes sont identiques sur l'ensemble du projecteur, ou en ce que l'agencement général des surfaces de sortie de lumière (L1 - L4) d'un module de sources lumineuses à DEL (M ; M1, M2, M3, M4) par rapport à l'axe optique (X) de l'élément optique secondaire (S1, S2, S3, S4) occupe une position définie dans la direction horizontale, et dans lequel les différents agencements généraux des modules de sources lumineuses à DEL (M ; M1, M2, M3, M4) individuels présentent une position définie différente de l'un à l'autre en direction horizontale par rapport à l'axe optique de l'élément optique secondaire (S1, S2, S3, S4) qui leur est respectivement affecté.
  21. Projecteur selon l'une des revendications 18 à 20, caractérisé en ce qu'un premier agencement général des surfaces de sortie de lumière occupe une première position définie par rapport à l'axe optique de son optique secondaire, et dans lequel, en comparaison du premier agencement général, un deuxième/troisième/quatrième ... nième agencement général est décalé par rapport à l'axe optique de son optique secondaire de la moitié de/d'une fois/de deux fois/de quatre fois/de ((n-1)/2) fois l'intervalle normal (A) entre deux surfaces de sortie de lumière adjacentes d'un module de sources lumineuses à DEL (M ; M1, M2, M3, M4).
  22. Projecteur selon l'une des revendications 18 à 21, caractérisé en ce que les surfaces de sortie de lumière de tous les modules de sources lumineuses à DEL (M ; M1, M2, M3, M4) du projecteur sont agencées respectivement sur un côté d'un plan vertical traversant l'axe optique de l'optique secondaire (S1, S2, S3, S4) qui leur est respectivement affectée.
  23. Projecteur selon l'une des revendications 18 à 22, caractérisé en ce qu'une source lumineuse à DEL (LQE) comprend au moins deux diodes électroluminescentes (LED1, LED2) superposées horizontalement, lesquelles diodes électroluminescentes (LED1, LED2) peuvent être commandées indépendamment l'une de l'autre, et dans lequel chacune des au moins deux diodes électroluminescentes (LED1, LED2) est reproduite par l'intermédiaire de la surface de sortie de lumière de l'élément optique primaire sous forme de segments de lumière horizontaux - à l'intérieur du segment de lumière vertical reproduit par l'élément optique primaire.
  24. Projecteur selon l'une des revendications 18 à 23, caractérisé en ce que chaque diode électroluminescente d'une source lumineuse à DEL peut être commandée séparément.
  25. Système de projecteur de véhicule avec deux projecteurs (SW) selon l'une des revendications 18 à 24, dans lequel le projecteur gauche, à l'état monté dans le véhicule, produit sur la chaussée la partie gauche de la répartition de lumière et le projecteur droit produit la partie droite de la répartition de lumière, et dans lequel au moins chaque source lumineuse à DEL, de préférence chaque diode électroluminescente des deux projecteurs peut être commandée séparément.
EP12740282.4A 2011-08-08 2012-06-28 Module de sources lumineuses à del pour un projecteur de véhicule Active EP2742280B1 (fr)

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ATA1141/2011A AT511761B1 (de) 2011-08-08 2011-08-08 Led-lichtquellenmodul für einen fahrzeugscheinwerfer sowie fahrzeugscheinwerfer und fahrzeugscheinwerfersystem
PCT/AT2012/050090 WO2013020155A1 (fr) 2011-08-08 2012-06-28 Module de sources lumineuses à del pour un projecteur de véhicule

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JP (1) JP5793733B2 (fr)
CN (1) CN103717962B (fr)
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JP5793733B2 (ja) 2015-10-14
AT511761A1 (de) 2013-02-15
WO2013020155A1 (fr) 2013-02-14
JP2014522083A (ja) 2014-08-28
EP2742280A1 (fr) 2014-06-18
MX2014001563A (es) 2014-10-17
BR112014002708A2 (pt) 2017-06-13
BR112014002708A8 (pt) 2018-04-03
MX336137B (es) 2016-01-08
CN103717962A (zh) 2014-04-09
US20140169014A1 (en) 2014-06-19
CN103717962B (zh) 2016-08-31
US9618174B2 (en) 2017-04-11
AT511761B1 (de) 2014-02-15

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