EP3545230B1 - Module de projecteur pour véhicules - Google Patents

Module de projecteur pour véhicules Download PDF

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Publication number
EP3545230B1
EP3545230B1 EP17784162.4A EP17784162A EP3545230B1 EP 3545230 B1 EP3545230 B1 EP 3545230B1 EP 17784162 A EP17784162 A EP 17784162A EP 3545230 B1 EP3545230 B1 EP 3545230B1
Authority
EP
European Patent Office
Prior art keywords
lens
mirror
light source
area
headlight 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
EP17784162.4A
Other languages
German (de)
English (en)
Other versions
EP3545230A1 (fr
Inventor
Matthias Mayer
Stefan MITTERLEHNER
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
Original Assignee
ZKW Group 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 ZKW Group GmbH filed Critical ZKW Group GmbH
Publication of EP3545230A1 publication Critical patent/EP3545230A1/fr
Application granted granted Critical
Publication of EP3545230B1 publication Critical patent/EP3545230B1/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
    • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
    • F21S41/67—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on reflectors
    • F21S41/675—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on reflectors by moving reflectors
    • 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
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F21S41/36—Combinations of two or more separate reflectors
    • 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
    • F21S41/16—Laser 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
    • 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
    • F21S41/25—Projection lenses
    • F21S41/275—Lens surfaces, e.g. coatings or surface structures

Definitions

  • the invention relates to a headlight module for motor vehicles with at least one light source, which is followed by at least one deflecting mirror, a micromirror array and a lens in the beam path, the light emitted by the at least one light source being reflected via the deflecting mirror onto the micromirror array controlled by a controller and the light image generated on this is projected onto the lens as a luminous image in the traffic area.
  • Headlight modules of this type are known and for example in the DE 10 2014 219 799 A1 or in the JP 2015138763 A described.
  • An object of the invention is to provide a headlight module or a headlight that meets this need.
  • a headlamp of the type mentioned at the outset in which the lens and deflecting mirror according to the invention are formed in one piece as a lens / mirror block, which has a lens area and a mirror area.
  • Another advantage of the invention is the shortened tolerance chain due to the reduced number of individual components, which simplifies the manufacturing process and enables a more precise assembly of the headlamp.
  • a reflective coating is applied to the surface of the lens / mirror block facing the at least one light source on the mirror area.
  • At least one further optic is arranged downstream of the lens.
  • Another expedient embodiment is characterized in that a radiation shield coating is applied to the surface of the lens / mirror block facing the at least one light source on a passage area surrounding the lens area.
  • the surface of the lens / mirror block facing the at least one light source is concave and the opposite outer side is convex.
  • the at least one light source has at least one laser diode / LED and a focusing lens arranged downstream of it.
  • the invention also comprises a headlight which has at least one headlight module as characterized above.
  • Fig. 1 one recognizes the basic structure of a headlight module 1 or a headlight unit in a representation which is also greatly simplified with regard to the beam path 15 . Parts required for the operation of the module 1 , such as a power supply, electronic control, brackets, further optical elements, etc. are also omitted from the drawing for the sake of simplicity.
  • a light source 2 which here consists of three laser diodes or LED chips LED1, LED2, LED3 with downstream focusing lenses L1, L2, L3 (cf. also Fig. 3 ), sends the light emitted by it via a deflecting mirror 3 onto the active surface of a micromirror array 4.
  • the individual micromirrors which are controlled intelligently, generate an image that projects as a luminous image through a lens 5 into the traffic area generally located in front of a motor vehicle becomes.
  • Fig. 2 shows the in Fig. 1 shown basic structure in use in a conventional technical embodiment, the same elements with the same reference numerals as in Fig. 1 are provided.
  • the light source 2 which can also consist of individual light sources, such as LED chips, furthermore the mirror 3 located in front in the radiation direction of the headlight module , the mirrored surface of which is concavely curved here, again lying further back and above the light source 2
  • Micromirror array 4 In front of the micromirror array 4 , the lens 5, located above the mirror 3 , is arranged, here designed as a biconvex glass body.
  • a base body 6 of the module 1 can also be seen, in which the micromirror array 4 and a circuit board 7 Light sources are stored and which ensures the necessary stability of the arrangement and possibly also cooling.
  • a separate mirror holder 8 is provided for the mirror 3 and the lens 5 is held in a corresponding holder 9 .
  • Fig. 3 the basic structure of a headlight module 1 according to the invention is shown, again using the same reference numerals for the same or comparable parts.
  • the lens and deflecting mirror are formed in one piece as a lens / mirror block 10 , which has a lens area 10-3 and a mirror area 10-5 .
  • the lens / mirror block 10 is made in one piece from glass.
  • glass is used, this term being used in the description and the claims to mean a material which has the optical properties of a glass in the sense of classic optics, but is not necessarily a glass in the physical sense got to.
  • the lens material therefore does not have to be amorphous, it could also be crystalline or a plastic, in any case it must be transparent and have light-refractive properties.
  • an optical glass in the conventional sense is preferred because it best ensures high accuracy of the lens and heat resistance.
  • Fig. 4 shows an embodiment of a lens / mirror block 10 that has a reflective coating 11, for example a highly reflective Ag or Al coating, applied to the surface of the lens / mirror block 10 facing the light source 2 on the mirror region 10-5 is.
  • the lens area 10-3 has a radiation diaphragm coating 12 which only leaves a circular passage area 13 for light in order to avoid the contrast-reducing false light.
  • This radiation diaphragm coating 12 can advantageously be made of the same material as the mirror coating consist.
  • the radiation shield coating can consist of a visible light-absorbing material which is applied, for example, by means of a two-component injection molding technique or another coating process.
  • the surface of the lens / mirror block 10 facing the light source which can also be referred to as the inside, is essentially concave, whereas the facing surface or outside is convex.
  • all surfaces can be designed differently depending on the respective lighting requirements, for example flat, convex or concave. This depends in particular on further optical elements (lenses) that may be used in module 1 .
  • FIG. 5 and 6 show the in Fig. 3 shown basic structure in use in a technical embodiment of a headlight module 1 according to the invention, wherein the same elements with the same reference numerals as in previous figures and are not necessarily described again for simplification.
  • the lens / mirror block 10 in which the entire rear side, except for the passage area 13, is provided with a reflective coating 11, for example an Ag coating.
  • the mirror coating 11 which extends further upward, thus also serves as a radiation diaphragm coating.
  • Fig. 5 is drawn so that you can see the back of the lens / mirror block 10 from the front.
  • Fig. 7 differs from that after 5 and 6 by the fact that the diaphragm 14 also covers the mirror region 10-5 of the lens / mirror block 10 at the front, so that only the lens region 10-3 is not covered, which is of course necessary because of the light emission.
  • the lens or the lens region 10-3 can either form the front end of the headlight or it can also be protected to the front by a cover glass.
  • additional optics optionally integrated in the cover glass, can also be arranged downstream of the lens, and further optics elements can also be arranged between the light source and the lens / mirror block. Outside the areas of the lens / mirror block 10 that are relevant in terms of lighting technology, the latter can be designed according to design requirements or mechanical requirements, for example with regard to the mounting in the module.

Claims (7)

  1. Module de phare (1) pour véhicules automobiles, comportant au moins une source de lumière (2), en aval de laquelle sont montés dans le trajet de faisceau au moins un miroir de déviation (3), un ensemble de micro-miroirs (4) et une lentille (5), dans lequel la lumière émise par ladite au moins une source de lumière est réfléchie par le miroir de déviation sur l'ensemble de micro-miroirs commandé par une commande et l'image optique produite sur celui-ci est projetée par la lentille sous la forme d'une image lumineuse dans la zone de trafic,
    caractérisé par le fait que
    la lentille et le miroir de déviation sont formés d'un seul tenant sous la forme d'un bloc lentille/miroir (10), lequel présente une zone (10-3) de lentille et une zone (10-5) de miroir.
  2. Module de phare selon la revendication 1, caractérisé par le fait qu'un revêtement réfléchissant (11) est appliqué sur la surface du bloc lentille/miroir (10) tournée vers ladite au moins une source de lumière, sur la zone (10-5) de miroir.
  3. Module de phare selon l'une des revendications 1 ou 2, caractérisé par le fait qu'au moins une autre optique est montée en aval de la zone (10-3) de lentille.
  4. Module de phare selon l'une des revendications 1 à 3, caractérisé par le fait qu'un revêtement obturateur est appliqué sur la surface du bloc lentille/miroir (10) tournée vers ladite au moins une source de lumière (2), sur une zone de passage (13) entourant la zone (10-3) de lentille.
  5. Module de phare selon l'une des revendications 1 à 4, caractérisé par le fait que la surface du bloc lentille/miroir (10) tournée vers ladite au moins une source de lumière (2) est réalisée concave et le côté externe opposé est réalisé convexe.
  6. Module de phare selon l'une des revendications 1 à 5, caractérisé par le fait que ladite au moins une source de lumière (2) présente au moins une diode laser/LED et une lentille de focalisation (L1, L2, L3) disposée en aval de celle-ci.
  7. Phare de véhicule automobile contenant au moins une module de phare (1) selon l'une des revendications 1 à 6.
EP17784162.4A 2016-11-24 2017-10-06 Module de projecteur pour véhicules Active EP3545230B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA51064/2016A AT519118B1 (de) 2016-11-24 2016-11-24 Scheinwerfermodul für Fahrzeuge
PCT/AT2017/060253 WO2018094430A1 (fr) 2016-11-24 2017-10-06 Module de projecteur pour véhicules

Publications (2)

Publication Number Publication Date
EP3545230A1 EP3545230A1 (fr) 2019-10-02
EP3545230B1 true EP3545230B1 (fr) 2020-01-22

Family

ID=60083717

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17784162.4A Active EP3545230B1 (fr) 2016-11-24 2017-10-06 Module de projecteur pour véhicules

Country Status (7)

Country Link
US (1) US10876698B2 (fr)
EP (1) EP3545230B1 (fr)
JP (1) JP6765011B2 (fr)
KR (1) KR102273381B1 (fr)
CN (1) CN110023675B (fr)
AT (1) AT519118B1 (fr)
WO (1) WO2018094430A1 (fr)

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DE102018112387A1 (de) * 2018-05-23 2019-11-28 Automotive Lighting Reutlingen Gmbh DMD-Lichtmodul mit einem Peltierelement
EP3686483A1 (fr) * 2019-01-23 2020-07-29 ZKW Group GmbH Dispositif d'éclairage pour un phare de véhicule automobile
WO2020197530A1 (fr) * 2019-03-22 2020-10-01 Vitalchains Corporation Kit de guidage de lumière
KR20210016166A (ko) * 2019-08-01 2021-02-15 현대자동차주식회사 차량용 조명 장치
EP3819534A1 (fr) 2019-11-08 2021-05-12 ZKW Group GmbH Dispositif d'éclairage pour un phare de véhicule automobile
CN111457314A (zh) * 2020-03-26 2020-07-28 江苏大学 一种基于双自由曲面透镜组的新型汽车照明光学系统
KR20210125761A (ko) * 2020-04-09 2021-10-19 현대모비스 주식회사 자동차용 램프 및 그 램프를 포함하는 자동차
KR20240025180A (ko) * 2022-08-18 2024-02-27 현대모비스 주식회사 차량용 램프

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Also Published As

Publication number Publication date
EP3545230A1 (fr) 2019-10-02
JP6765011B2 (ja) 2020-10-07
JP2020513651A (ja) 2020-05-14
CN110023675B (zh) 2023-11-28
KR20190065348A (ko) 2019-06-11
KR102273381B1 (ko) 2021-07-07
CN110023675A (zh) 2019-07-16
WO2018094430A1 (fr) 2018-05-31
US20190360657A1 (en) 2019-11-28
AT519118B1 (de) 2018-04-15
AT519118A4 (de) 2018-04-15
US10876698B2 (en) 2020-12-29

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