EP4013993B1 - Dispositif d'éclairage pour un phare de véhicule automobile - Google Patents

Dispositif d'éclairage pour un phare de véhicule automobile Download PDF

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Publication number
EP4013993B1
EP4013993B1 EP20737456.2A EP20737456A EP4013993B1 EP 4013993 B1 EP4013993 B1 EP 4013993B1 EP 20737456 A EP20737456 A EP 20737456A EP 4013993 B1 EP4013993 B1 EP 4013993B1
Authority
EP
European Patent Office
Prior art keywords
light
primary
optical element
illumination device
exit surface
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP20737456.2A
Other languages
German (de)
English (en)
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EP4013993A1 (fr
Inventor
Christian Maier
Martin Schragl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZKW Group GmbH
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ZKW Group GmbH
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Filing date
Publication date
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Publication of EP4013993A1 publication Critical patent/EP4013993A1/fr
Application granted granted Critical
Publication of EP4013993B1 publication Critical patent/EP4013993B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F21S41/20—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
    • F21S41/10—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
    • F21S41/285—Refractors, transparent cover plates, light guides or filters not provided in groups F21S41/24 - F21S41/2805
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141—Light emitting diodes [LED]
    • F21S41/147—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device
    • F21S41/148—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device the main emission direction of the LED being perpendicular to the optical axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F21S41/322—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
    • F21S41/40—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades
    • F21S41/43—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades characterised by the shape thereof
    • F21S41/435—Hoods or cap-shaped
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
    • F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
    • F21S43/14—Light emitting diodes [LED]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
    • F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
    • F21S43/15—Strips of light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/26—Refractors, transparent cover plates, light guides or filters not provided in groups F21S43/235 - F21S43/255
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/30—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by reflectors
    • F21S43/31—Optical layout thereof
    • F21S43/315—Optical layout thereof 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
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/40—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the combination of reflectors and refractors
    • 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
    • F21W2102/13—Arrangement or contour of the emitted light for high-beam region or low-beam region

Definitions

  • the invention also relates to a motor vehicle headlight with a lighting device.
  • a light beam adjustment device for a motor vehicle headlight is known.
  • lighting devices for motor vehicle headlights in which light exits via a light-conducting body, undesired refraction of light often occurs at the boundary surface of the light-conducting body. This is particularly problematic when the light-guiding body has a large spatial extent in the direction of light propagation.
  • the object of the present invention is to alleviate or eliminate the disadvantages of the prior art.
  • the invention therefore aims in particular to create a lighting device in which the light emission is improved.
  • the secondary light entry surface is formed by a multiplicity of optical elements which are arranged areally next to one another and which are set up to break the light beams when they enter the secondary optical element in such a way that the light beams, after their refraction which takes place when exiting the secondary light exit surface, in Are oriented towards the main emission direction.
  • the light beams are thus advantageously oriented in front of and behind the secondary optics element in or parallel to the direction of light propagation. The refraction of the light beams when they enter the secondary optical element via the secondary light entry surface through the optical elements can thus compensate for the refraction at the secondary light exit surface.
  • Each optical element on the secondary light entry surface can be designed as a facet, which are preferably arranged together in a uniform grid on the secondary light entry surface.
  • a facet is to be understood as meaning a geometric arrangement on the secondary light entry surface that is smaller than the secondary light entry surface, such as a surface element that is tilted relative to the secondary light entry surface.
  • the individual facets are preferably of the same type.
  • the refraction of light at a facet is essentially predetermined by the curvature of the secondary light exit surface or the refraction of light caused thereby at the secondary light exit surface, since the refraction of light at the facet compensates the refraction of light at the secondary light exit surface.
  • the facets can each be oriented at an angle ⁇ 0° to the secondary light entry surface.
  • the angle ⁇ is determined by the curvature or the angle of refraction at the secondary light exit surface.
  • the angle ⁇ can also be equal to zero.
  • the distance between the primary optics element and the secondary optics element can be 1 mm, preferably 2 mm. This results in the advantage that the optical elements on the secondary light entry surface cannot be damaged by possible contact with the primary light exit surface.
  • the primary optics element and the secondary optics element can be formed in one piece or in one piece.
  • the primary light exit surface can have light-scattering means in order to scatter the light radiated in by the illuminant around the main emission direction when exiting the primary light exit surface. This results in the advantage that the secondary light exit surface is illuminated with an essentially constant illuminance per unit area.
  • the secondary optics element is preferably designed as a transparent solid body.
  • the secondary optics element can be made of plastic, for example.
  • the secondary optics element can also be designed as a transparent hollow body.
  • the primary optics element is preferably designed as a transparent solid body.
  • the primary optics element can be made of plastic, for example.
  • the primary optics element can also be designed as a transparent hollow body.
  • the secondary light entry surface and the secondary light exit surface can be curved, there being preferably a substantially constant normal distance between the secondary light entry surface and the secondary light exit surface, starting from the secondary light exit surface.
  • the curvature can come about because the secondary optics element has a sweep, with the curved configuration causing the undesired refraction of light to occur on the secondary light exit surface, which is compensated in particular by the optical elements on the secondary light entry surface.
  • the normal distance between the secondary light entry surface and the secondary light exit surface can also not be constant, with the secondary light entry surface and the secondary light exit surface can have a different curvature.
  • the primary optics element has a single primary light entry surface, with the illuminant comprising a light source carrier, preferably a printed circuit board, and a number of light sources arranged thereon, in particular individually controllable, with the light source carrier preferably being arranged on the primary light entry surface in such a way that the light of the light sources is introduced into the primary optical element exclusively via the one primary light entry surface. This advantageously results in minimal losses when light is radiated into the primary optics element. Due to the individually controllable light sources, specific light patterns can be generated on the secondary light exit surface.
  • the light sources are arranged on the light source carrier along an essentially ring-shaped light source path, the light source path being composed of a sequence of the shortest distances between two adjacent light sources, the light sources being distributed in particular at uniform intervals over the entire light source path.
  • the secondary optics element has a recess which is such that the secondary light exit surface has the shape of a closed trajectory.
  • the light source path depicts the geometric shape of the closed trajectory.
  • the individually controllable light sources which are arranged along the light source path, can create luminous images or lighting functions, which can be imaged via the closed trajectory of the secondary light exit surface corresponding to the light source path.
  • the light source is arranged to the primary light entry surface such that the light from the light source in the primary optics element in one of the Main emission direction deviating direction, preferably orthogonal to the main emission direction, is irradiated, according to the invention within the primary optics element deflection means are arranged and set up to direct the light after entering the primary optics element within the primary optics element through the Deflect deflection means in the direction of the main emission direction.
  • the size, in particular the longitudinal extent, of the lighting device can be reduced, which in turn reduces the required installation space, for example in a motor vehicle headlight.
  • a diaphragm can be arranged between the primary optics element and the secondary optics element. This results in the advantage that scattered light, which can be emitted laterally from the secondary light entry surface, is blocked. As a result, the homogeneity of the light intensity emitted via the secondary light exit surface can be improved.
  • a motor vehicle headlight can be provided with a lighting device according to the invention.
  • top In the context of this description, the terms “top”, “bottom”, “horizontal”, “vertical” are to be understood as indications of the orientation when the lighting device is arranged in the normal use position after it has been installed, for example, in a motor vehicle headlight.
  • the lighting device 1 shows a lighting device 1 for a motor vehicle headlight.
  • the lighting device 1 has an illuminant 2 which is set up to generate and emit light.
  • a primary optics element 3 has a primary light entry surface 3a for receiving light emitted by the illuminant 2, the primary optics element 3 being set up to guide the light to a primary light exit surface 3b of the primary optics element 3 and through the primary light exit surface 3b in radiate a main emission direction 4 .
  • the lighting device 1 also has a secondary optics element 5 which is arranged after the primary optics element 3 in the direction of light propagation and is spaced apart from the primary optics element 3 .
  • the distance between the primary optics element 3 and the secondary optics element 5 is 1 mm, preferably 2 mm.
  • the secondary optical element 5 has a secondary light entry surface 5a, with the secondary light entry surface 5a and the primary light exit surface 3b being arranged relative to one another in such a way that the light from the illuminant 2 is radiated from the primary light exit surface 3b via the secondary light entry surface 5a into the secondary optical element 5 becomes.
  • the light is then guided within the secondary optics element 5 to a secondary light exit surface 5b of the secondary optics element 5 .
  • the secondary light entry surface 5a and/or the secondary light exit surface 5b are uneven, in particular curved.
  • the secondary optical element 5 has a spatial extension of at least 2 mm, preferably more than 15 mm, in the light propagation direction. This is particularly in the 6 apparent.
  • the primary optics element 3 and the secondary optics element 5 are designed as a transparent solid body.
  • the primary optical element 3 has a single primary light entry surface 3a.
  • the illuminant 2 comprises a light source carrier 8, preferably a printed circuit board, and a number of light sources 9 arranged thereon, in particular individually controllable Via which a primary light entry surface 3a is introduced into the primary optics element 3 .
  • the light sources 9 are arranged on the light source carrier 8 along an essentially ring-shaped light source path, the light source path being composed of a series of the shortest distances between two adjacent light sources 9, the light sources 9 being in particular at uniform distances over the entire light source path are distributed.
  • the secondary light entry surface 5a is formed by a multiplicity of optical elements 6 arranged areally next to one another, which are set up to break the light beams when entering the secondary optical element 5 in such a way that the light beams, after which when exiting the secondary Light exit surface 5b occurring refraction, are oriented in the direction of the main emission direction 4 (s. 6 ).
  • Each optical element 6 on the secondary light entry surface 5a is designed as a facet which is arranged together in a preferably uniform grid on the secondary light entry surface 5a.
  • the facets are each oriented at an angle ⁇ 0° to the secondary light entry surface 5a.
  • the secondary optics element 5 has a recess 11 which is such that the secondary light exit surface 5b has the shape of a closed trajectory 12 .
  • the light source path maps the geometric shape of the closed trajectory 12 .
  • a diaphragm 13 is arranged between the primary optics element 3 and the secondary optics element 5 .
  • the secondary light entry surface 5a and the secondary light exit surface 5b are curved, with a substantially constant normal distance between the secondary light entry surface 5a and the secondary light exit surface 5b, starting from the secondary light exit surface 5b.
  • the light source 2 is arranged relative to the primary light entry surface 3a in such a way that the light from the light source 2 is radiated into the primary optics element 3 in a direction that deviates from the main emission direction 4, in this case orthogonally to the main emission direction 4.
  • Deflection means 3c are arranged and set up within the primary optics element 3 in such a way that To deflect light after entering the primary optics element 3 within the primary optics element 3 by the deflection means 3c in the direction of the main emission direction 4 (see Fig. 2 ).
  • the primary optics element 3 and the secondary optics element 5 can be designed in one piece.

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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)
  • Planar Illumination Modules (AREA)

Claims (12)

  1. Dispositif d'éclairage (1) pour un projecteur de véhicule automobile, comprenant :
    - un moyen d'éclairage (2) qui est adapté pour générer et émettre de la lumière ;
    - un élément optique primaire (3) associé au moyen d'éclairage (2), l'élément optique primaire (3) ayant une surface d'entrée de lumière primaire (3a) pour recevoir la lumière émise par le moyen d'éclairage (2), l'élément optique primaire (3) étant adapté pour diriger la lumière vers une surface de sortie de lumière primaire (3b) de l'élément optique primaire (3), et pour l'émettre à travers la surface de sortie de lumière primaire (3b) dans une direction d'émission principale (4) ;
    - un élément optique secondaire (5) disposé en aval de l'élément optique primaire (3) dans la direction de propagation de la lumière et espacé de l'élément optique primaire (3), l'élément optique secondaire (5) ayant une surface d'entrée de lumière secondaire (5a), la surface d'entrée de lumière secondaire (5a) et la surface de sortie de lumière primaire (3b) étant disposées l'une par rapport à l'autre de telle sorte que la lumière du moyen d'éclairage (2) est rayonnée depuis la surface de sortie de lumière primaire (3b) dans l'élément optique secondaire (5) via la surface d'entrée de lumière secondaire (5a), la lumière étant dirigée à l'intérieur de l'élément optique secondaire (5) vers une surface de sortie de lumière secondaire (5b) de l'élément optique secondaire (5), au moins la surface d'entrée de lumière secondaire (5a) et/ou la surface de sortie de lumière secondaire (5b) étant inégale, en particulier incurvée, l'élément optique secondaire (5) présentant entre la surface d'entrée de lumière secondaire (5a) et la surface de sortie de lumière secondaire (5b) une extension spatiale d'au moins 2 mm, de préférence de plus de 15 mm, dans la direction de propagation de la lumière,
    la surface secondaire d'entrée de lumière (5a) étant formée par une pluralité d'éléments optiques (6) disposés à plat les uns à côté des autres, qui sont conçus pour réfracter les rayons lumineux lors de leur entrée dans l'élément optique secondaire (5) de telle sorte que les rayons lumineux, après leur réfraction se produisant à la sortie de la surface secondaire de sortie de lumière (5b), sont orientés dans la direction de la direction principale de rayonnement (4)
    les sources lumineuses (9) étant disposées sur le support de sources lumineuses (8) le long d'un trajet de sources lumineuses sensiblement annulaire, le trajet de sources lumineuses se composant d'une juxtaposition des distances les plus courtes entre deux sources lumineuses (9) voisines,
    l'élément optique secondaire (5) présente un évidement (11) qui est tel que la surface de sortie de lumière secondaire (5b) présente la forme d'une trajectoire fermée (12),
    le trajet de la source lumineuse reproduisant la forme géométrique de la courbe de trajectoire fermée (12),
    caractérisé en ce que
    l'élément optique primaire (3) présente une seule surface primaire d'entrée de lumière (3a), le moyen d'éclairage (2) comprenant un support de source lumineuse (8) et un certain nombre de sources lumineuses (9) pouvant être commandées individuellement et disposées sur celui-ci, le support de source lumineuse (8) étant disposé sur la surface primaire d'entrée de lumière (3a) de telle sorte que la lumière des sources lumineuses (9) est introduite dans l'élément optique primaire (3) exclusivement par l'intermédiaire de la surface primaire d'entrée de lumière (3a),
    le moyen d'éclairage (2) étant disposé par rapport à la surface primaire d'entrée de la lumière (3a) de telle sorte que la lumière est émise par le moyen d'éclairage (2) dans l'élément optique primaire (3) dans une direction différente de la direction principale d'émission (4), de préférence orthogonale à la direction principale d'émission (4), des moyens de déviation (3c) étant disposés à l'intérieur de l'élément optique primaire (3) et étant agencés de manière à dévier la lumière, après son entrée dans l'élément optique primaire (3), à l'intérieur de l'élément optique primaire (3) par les moyens de déviation (3c) dans la direction de la direction de rayonnement principale (4).
  2. Dispositif d'éclairage (1) selon l'une quelconque des revendications précédentes, dans lequel chaque élément optique (6) est formé sur la surface d'entrée de lumière secondaire (5a) sous la forme d'une facette, qui sont disposées ensemble, de préférence selon une trame régulière, sur la surface d'entrée de lumière secondaire (5a).
  3. Dispositif d'éclairage (1) selon la revendication 2, dans lequel les facettes sont orientées chacune selon un angle γ ≠ 0° par rapport à la surface secondaire d'entrée de lumière (5a).
  4. Dispositif d'éclairage (1) selon l'une des revendications précédentes, dans lequel la distance entre l'élément optique primaire (3) et l'élément optique secondaire (5) est de 1 mm, de préférence de 2 mm.
  5. Dispositif d'éclairage (1) selon l'une des revendications précédentes, dans lequel la surface primaire de sortie de la lumière (3b) comporte des moyens de diffusion de la lumière (7) pour diffuser la lumière émise par le moyen d'éclairage (2) autour de la direction principale d'émission (4) à la sortie de la surface primaire de sortie de la lumière (3b).
  6. Dispositif d'éclairage (1) selon l'une des revendications précédentes, dans lequel l'élément optique secondaire (5) est conçu comme un corps plein transparent.
  7. Dispositif d'éclairage (1) selon l'une des revendications précédentes, dans lequel l'élément optique primaire (3) est conçu comme un corps plein transparent.
  8. Dispositif d'éclairage (1) selon l'une des revendications précédentes, dans lequel la surface d'entrée de lumière secondaire (5a) et la surface de sortie de lumière secondaire (5b) sont courbes, de préférence avec une distance normale sensiblement constante entre la surface d'entrée de lumière secondaire (5a) et la surface de sortie de lumière secondaire (5b) à partir de la surface de sortie de lumière secondaire (5b).
  9. Dispositif d'éclairage (1) selon l'une quelconque des revendications précédentes, dans lequel le support de sources lumineuses (8) comprend un circuit imprimé.
  10. Dispositif d'éclairage (1) selon l'une quelconque des revendications précédentes, dans lequel les sources lumineuses (9) sont réparties à intervalles réguliers sur l'ensemble du trajet des sources lumineuses.
  11. Dispositif d'éclairage (1) selon l'une des revendications précédentes, dans lequel un diaphragme (13) est disposé entre l'élément optique primaire (3) et l'élément optique secondaire (5).
  12. Projecteur de véhicule automobile comportant un dispositif d'éclairage (1) selon l'une quelconque des revendications 1 à 11.
EP20737456.2A 2019-08-14 2020-07-08 Dispositif d'éclairage pour un phare de véhicule automobile Active EP4013993B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP19191724.4A EP3779272A1 (fr) 2019-08-14 2019-08-14 Dispositif d'éclairage pour un phare de véhicule automobile
PCT/EP2020/069248 WO2021028124A1 (fr) 2019-08-14 2020-07-08 Dispositif d'éclairage pour phare de véhicule automobile

Publications (2)

Publication Number Publication Date
EP4013993A1 EP4013993A1 (fr) 2022-06-22
EP4013993B1 true EP4013993B1 (fr) 2023-09-06

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Family Applications (2)

Application Number Title Priority Date Filing Date
EP19191724.4A Withdrawn EP3779272A1 (fr) 2019-08-14 2019-08-14 Dispositif d'éclairage pour un phare de véhicule automobile
EP20737456.2A Active EP4013993B1 (fr) 2019-08-14 2020-07-08 Dispositif d'éclairage pour un phare de véhicule automobile

Family Applications Before (1)

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EP19191724.4A Withdrawn EP3779272A1 (fr) 2019-08-14 2019-08-14 Dispositif d'éclairage pour un phare de véhicule automobile

Country Status (6)

Country Link
US (1) US11906122B2 (fr)
EP (2) EP3779272A1 (fr)
JP (1) JP7349557B2 (fr)
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CN114207350B (zh) 2024-03-22
JP7349557B2 (ja) 2023-09-22
JP2022544381A (ja) 2022-10-18
US11906122B2 (en) 2024-02-20
KR20220025896A (ko) 2022-03-03
US20220290830A1 (en) 2022-09-15
CN114207350A (zh) 2022-03-18
EP4013993A1 (fr) 2022-06-22
WO2021028124A1 (fr) 2021-02-18

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