EP3372890B1 - Module de phare de véhicule automobile - Google Patents

Module de phare de véhicule automobile Download PDF

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Publication number
EP3372890B1
EP3372890B1 EP18156868.4A EP18156868A EP3372890B1 EP 3372890 B1 EP3372890 B1 EP 3372890B1 EP 18156868 A EP18156868 A EP 18156868A EP 3372890 B1 EP3372890 B1 EP 3372890B1
Authority
EP
European Patent Office
Prior art keywords
light
partial
projection lens
light module
module
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
EP18156868.4A
Other languages
German (de)
English (en)
Other versions
EP3372890A1 (fr
Inventor
Sebastian PFAFF
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.)
Marelli Germany GmbH
Original Assignee
Automotive Lighting Reutlingen GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Automotive Lighting Reutlingen GmbH filed Critical Automotive Lighting Reutlingen GmbH
Publication of EP3372890A1 publication Critical patent/EP3372890A1/fr
Application granted granted Critical
Publication of EP3372890B1 publication Critical patent/EP3372890B1/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
    • F21S41/25—Projection 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
    • F21S41/29—Attachment thereof
    • F21S41/295—Attachment thereof specially adapted to projection 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
    • F21S41/10—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
    • F21S41/25—Projection lenses
    • F21S41/265—Composite lenses; Lenses with a patch-like shape
    • 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
    • F21V5/00—Refractors for light sources
    • F21V5/04—Refractors for light sources of lens shape
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
    • F21S45/40—Cooling of lighting devices
    • F21S45/47—Passive cooling, e.g. using fins, thermal conductive elements or openings
    • 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
    • F21W2102/135—Arrangement or contour of the emitted light for high-beam region or low-beam region the light having cut-off lines, i.e. clear borderlines between emitted regions and dark regions
    • 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
    • F21W2102/17—Arrangement or contour of the emitted light for regions other than high beam or low beam
    • F21W2102/19—Arrangement or contour of the emitted light for regions other than high beam or low beam for curves
    • 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

Definitions

  • a color fringe-compensated light distribution with a large vertical width and a high-contrast light-dark border is achieved with a simply structured direct imaging system.
  • the invention is based on the knowledge that a partial light distribution with a high-contrast light-dark boundary and without a disruptive color fringing can already be generated with the central partial area.
  • This light distribution has the property that it has only a small width in the direction lying transversely to the cut-off line, which is a vertical direction when the light module is used as intended. This is advantageous for the brightness at the cut-off line, but on the other hand means that the area in front of the light module located between the cut-off line and the vehicle in which the light module is installed is only insufficiently illuminated.
  • the three partial light distributions are of the same width in the horizontal direction when the light module is used as intended.
  • the base element 10 has a projection lens 14 and a frame 16 cohesively connected to the projection lens 14.
  • the frame 16 has a first end 18 and a second end 20.
  • the first end 18 is that part of the frame 16 which integrally merges into the projection lens 14. Starting from this first end 18, the frame 16 extends into the areas of a light exit surface 22 (cf. Figure 2 ) The half-space facing away from the projection lens 14 up to the second end 20.
  • the base element 10 can be designed to be closed around the optical axis in the area of the frame 16, but for thermal reasons it will preferably have openings upwards and downwards.
  • a semiconductor light source 28 of the light module 12 in the base element 10 is held in its correct position relative to the projection lens 14.
  • Figure 1 shows such a semiconductor light source 28 in such a position without a circuit board and without a cooling plate that may be present.
  • a screen (not shown) can also be attached to the cooling plate 31 or the frame 16, which extends into the light emission cone between the light exit surface of the semiconductor light source 28 and the projection lens 14 and limits it in such a way that, if necessary, only the light entry surface of the projection lens 28 is illuminated, or that it is prevented that disturbing light reflections are generated by uncontrolled light propagation outside the actual projection lens 14 lens.
  • the angle specifications relate to angles between light beams which, starting from the motor vehicle headlight module according to the invention, strike a screen perpendicular to the optical axis and which run in a plane which is perpendicular to the horizon and in which the optical axis runs.
  • Figure 5 d shows the resulting superposition of the partial light distributions 52, 54 and 56. This result of the superposition has a sharp, light-dark boundary 50, is color-neutral and sufficiently wide in the vertical direction to illuminate the area in front of it.
  • the figures relate to an exemplary embodiment with a straight cut-off line, as is customary for a cornering light.

Landscapes

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

Claims (12)

  1. Module d'éclairage de phare de véhicule automobile (12) avec une source lumineuse à semi-conducteurs (28) et une lentille de projection (14) qui est disposée dans un faisceau lumineux qui part de la source lumineuse à semi-conducteurs (28) et qui produit, à partir du faisceau lumineux, une répartition de lumière dans laquelle un bord (28.3) d'une surface de sortie de lumière de la source lumineuse à semi-conducteurs (28) est reproduit comme coupure (50), la lentille de projection (14) comprenant une première zone partielle (42) qui produit une première répartition de lumière partielle et une deuxième zone partielle (44) qui produit une deuxième répartition de lumière partielle qui se chevauche avec la première répartition de lumière partielle, la lentille de projection (14) comprenant une troisième zone partielle (46) située entre la première zone partielle (42) et la deuxième zone partielle (44) et qui est agencée pour produire une troisième répartition de lumière partielle qui, lors d'une utilisation conforme du module d'éclairage de phare de véhicule automobile (12), est délimitée vers le haut par la coupure (50) engendrée comme image du bord (28.3) de la source lumineuse à semi-conducteurs (28) et qui se chevauche avec la première répartition de lumière partielle et la deuxième répartition de lumière partielle, la première répartition de lumière partielle et la deuxième répartition de lumière partielle étant situées en-dessous d'une ligne (50') qui, lors d'une utilisation conforme du module d'éclairage de phare de véhicule automobile (12), est située en-dessous de la coupure (50) produite par la troisième zone partielle (46) et présente une distance d'au moins 0,5° à au 2° maximum de la première coupure (50), une surface d'entrée de lumière (30) orientée vers la source lumineuse à semi-conducteurs (28), de la lentille de projection (14) étant lisse et ne comportant pas d'étagement, caractérisé en ce que la surface de sortie de lumière (22) de la lentille de projection est également lisse et ne comporte pas d'étagement.
  2. Module d'éclairage (12) selon la revendication 1, caractérisé en ce que la première zone partielle (42) et la deuxième zone partielle (44) sont situées sur des côtés différents d'un axe optique (48) de la lentille de projection (14).
  3. Module d'éclairage (12) selon la revendication 2, caractérisé en ce que, lors d'une utilisation conforme du module d'éclairage (12), la première zone partielle (42) est située au-dessus de l'axe optique (48) et la deuxième zone partielle (44) en-dessous de l'axe optique (48).
  4. Module d'éclairage (12) selon la revendication 3, caractérisé en ce que le centre de la troisième zone partielle est situé sur l'axe optique.
  5. Module d'éclairage (12) selon l'une des revendications précédentes, caractérisé en ce que, lors d'une utilisation conforme du module d'éclairage (12), les trois répartitions de lumière partielle sont d'égale largeur en direction horizontale.
  6. Module d'éclairage (12) selon l'une des revendications précédentes, caractérisé en ce que, lors d'une utilisation conforme du module d'éclairage (12), la première répartition de lumière partielle et la deuxième répartition de lumière partielle sont plus larges en direction verticale que la troisième répartition de lumière partielle.
  7. Module d'éclairage (12) selon l'une des revendications précédentes, caractérisé en ce que la surface d'entrée de lumière (30) de la lentille de projection (14) orientée vers la source lumineuse à semi-conducteurs (28) est divisé horizontalement en trois surfaces partielles qui se suivent sans étagement et sans brisure notable.
  8. Module d'éclairage (12) selon l'une des revendications précédentes, caractérisé en ce que la lentille de projection (14) ne fait qu'un bloc avec un cadre (16) servant de support de lentille.
  9. Module d'éclairage (12) selon la revendication 8, caractérisé en ce que la lentille de projection (14) et le cadre (16) sont constitués du même matériau.
  10. Module d'éclairage (12) selon la revendication 8 ou 9, caractérisé en ce qu'il est agencé une extrémité du cadre (16) détournée de la lentille de projection (14) en direction de l'axe optique (48) pour fixer une platine (29), comprenant la source lumineuse à semi-conducteurs (28), et une tôle de refroidissement (31).
  11. Module d'éclairage (12) selon la revendication 8, caractérisé en ce que le cadre (16) comprend des structures à complémentarité de forme qui, avec en plus des structures à complémentarité de forme complémentaires de la platine (29) et/ou de la tôle de refroidissement (31), déterminent la position de la source lumineuse à semi-conducteurs (28) par rapport à la lentille de projection (14) en direction de l'axe optique (48) et transversalement à l'axe optique (48).
  12. Module d'éclairage (12) selon l'une des revendications précédentes, caractérisé en ce que la source lumineuse à semi-conducteurs (28) comprend au moins deux surfaces de sortie de lumière disposées l'une à côté de l'autre qui sont situées l'une à côté de l'autre dans une direction transversale à l'axe optique (48) et sont limitées par des bords alignés le long de cette direction.
EP18156868.4A 2017-03-09 2018-02-15 Module de phare de véhicule automobile Active EP3372890B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102017105027.2A DE102017105027A1 (de) 2017-03-09 2017-03-09 Kraftfahrzeugscheinwerferlichtmodul

Publications (2)

Publication Number Publication Date
EP3372890A1 EP3372890A1 (fr) 2018-09-12
EP3372890B1 true EP3372890B1 (fr) 2021-06-30

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ID=61244383

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18156868.4A Active EP3372890B1 (fr) 2017-03-09 2018-02-15 Module de phare de véhicule automobile

Country Status (4)

Country Link
US (1) US10731816B2 (fr)
EP (1) EP3372890B1 (fr)
CN (1) CN108571702B (fr)
DE (1) DE102017105027A1 (fr)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
WO2023020794A1 (fr) 2021-08-20 2023-02-23 Hella Autotechnik Nova S.R.O. Ensemble destiné à la liaison non détachable de pièces en plastique pour une voiture

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FR3086734B1 (fr) 2018-09-28 2022-06-24 Valeo Vision Module lumineux de vehicule comprenant un pion de referencement avec une partie souple et une partie rigide
EP3653926B1 (fr) * 2018-11-19 2022-02-16 ZKW Group GmbH Dispositif d'éclairage pour un phare de véhicule automobile ainsi que phare de véhicule automobile
EP3757449A1 (fr) * 2019-06-27 2020-12-30 ZKW Group GmbH Dispositif d'éclairage d'un projecteur de véhicule automobile
EP3974709A1 (fr) * 2020-09-25 2022-03-30 ZKW Group GmbH Dispositif d'éclairage pour un phare de véhicule automobile
DE102020127952A1 (de) 2020-10-23 2022-04-28 HELLA GmbH & Co. KGaA Beleuchtungsvorrichtung für Fahrzeuge
DE102021129189A1 (de) 2021-11-10 2023-05-11 HELLA GmbH & Co. KGaA Lichtmodul, Kühlkörper für Lichtmodul und Verfahren zum Herstellen eines Kühlkörpers
DE202021004407U1 (de) 2021-11-10 2024-04-19 HELLA GmbH & Co. KGaA Lichtmodul und Kühlkörper für Lichtmodul

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023020794A1 (fr) 2021-08-20 2023-02-23 Hella Autotechnik Nova S.R.O. Ensemble destiné à la liaison non détachable de pièces en plastique pour une voiture
DE112022004048T5 (de) 2021-08-20 2024-08-01 Hella Autotechnik Nova S.R.O. Anordnung für eine nicht lösbare Verbindung von Kunststoffteilen für ein Automobil

Also Published As

Publication number Publication date
CN108571702B (zh) 2022-02-11
EP3372890A1 (fr) 2018-09-12
DE102017105027A1 (de) 2018-09-13
US20180259147A1 (en) 2018-09-13
CN108571702A (zh) 2018-09-25
US10731816B2 (en) 2020-08-04

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