EP3545230B1 - Headlight module for vehicles - Google Patents

Headlight module for vehicles 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
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EP
European Patent Office
Prior art keywords
lens
mirror
light source
area
headlight module
Prior art date
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Active
Application number
EP17784162.4A
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German (de)
French (fr)
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EP3545230A1 (en
Inventor
Matthias Mayer
Stefan MITTERLEHNER
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ZKW Group GmbH
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ZKW Group GmbH
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Publication of EP3545230A1 publication Critical patent/EP3545230A1/en
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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.

Description

Die Erfindung bezieht sich auf ein Scheinwerfermodul für Kraftfahrzeuge mit zumindest einer Lichtquelle, welcher im Strahlengang zumindest ein Umlenkspiegel, ein Mikrospiegelarray und eine Linse nachgeordnet sind, wobei das von der zumindest einen Lichtquelle abgestrahlte Licht über den Umlenkspiegel auf das von einer Steuerung angesteuerte Mikrospiegelarray reflektiert wird und das auf diesem erzeugte Lichtbild über die Linse als Leuchtbild in den Verkehrsraum projiziert wird.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.

Scheinwerfermodule dieser Art sind bekannt und beispielsweise in der DE 10 2014 219 799 A1 oder in der JP 2015138763 A beschrieben.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.

Bei Scheinwerfern besteht meist ein Bedarf an sehr kompakten Bauformen, wobei der Zusammenbau eines Scheinwerfers einfach und die erforderliche Genauigkeit berücksichtigend erfolgen soll.In the case of headlights, there is usually a need for very compact designs, the assembly of a headlight being simple and taking the required accuracy into account.

Eine Aufgabe der Erfindung liegt in der Schaffung eines Scheinwerfermoduls bzw. eines Scheinwerfers, das/der diesem Bedarf entgegenkommt.An object of the invention is to provide a headlight module or a headlight that meets this need.

Diese Aufgabe wird mit einem Scheinwerfer der eingangs genannten Art gelöst, bei welchem erfindungsgemäß Linse und Umlenkspiegel einstückig als Linsen/Spiegel-Block ausgebildet sind, welcher einen Linsenbereich und einen Spiegelbereich aufweist.This object is achieved with 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.

Da bei der erfindungsgemäßen Lösung weniger Einzelteile benötigt werden, ergibt sich nicht nur die gewünschte Vereinfachung beim Zusammenbau, bei dem außerdem auf ein gegenseitiges Justieren von Spiegel und Linse entfällt, sondern es werden auch Materialkosten und Arbeitszeit gespart. Ein weiterer Vorteil der Erfindung ist die verkürzte Toleranzkette durch die reduzierte Anzahl an Einzelkomponenten, wodurch der Herstellungsprozess vereinfacht wird und ein präziserer Zusammenbau des Scheinwerfers ermöglicht wird.Since fewer individual parts are required in the solution according to the invention, this not only results in the desired simplification during assembly, which also eliminates the need for mutual adjustment of the mirror and lens, but also saves material costs and labor. 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.

Bei einer bevorzugten Ausführung ist vorgesehen, dass an der der zumindest einen Lichtquelle zugewandten Fläche des Linsen/Spiegel-Blocks auf dem Spiegelbereich eine verspiegelnde Beschichtung aufgebracht ist.In a preferred embodiment it is provided that a reflective coating is applied to the surface of the lens / mirror block facing the at least one light source on the mirror area.

Es kann auch vorgesehen sein, dass der Linse zumindest eine weitere Optik nachgeordnet ist.It can also be provided that at least one further optic is arranged downstream of the lens.

Eine weitere zweckmäßige Ausführung zeichnet sich dadurch aus, dass an der der zumindest einen Lichtquelle zugewandten Fläche des Linsen/Spiegel-Blocks auf einem den Linsenbereich umgebenden Durchtrittsbereich eine Strahlenblenden-Beschichtung aufgebracht ist.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.

Es hat sich in vielen Fällen als vorteilhaft erwiesen, wenn die der zumindest einen Lichtquelle zugewandte Fläche des Linsen/Spiegel-Blocks konkav und die gegenüberliegende Außenseite konvex ausgebildet ist.In many cases it has proven to be advantageous if the surface of the lens / mirror block facing the at least one light source is concave and the opposite outer side is convex.

Bei bevorzugten Ausführungen weist die zumindest eine Lichtquelle zumindest eine Laserdiode/LED und eine dieser nachgeordnete Fokussierlinse auf.In preferred embodiments, the at least one light source has at least one laser diode / LED and a focusing lens arranged downstream of it.

Die Erfindung umfasst auch einen Scheinwerfer der zumindest ein Scheinwerfermodul wie oben gekennzeichnet aufweist.The invention also comprises a headlight which has at least one headlight module as characterized above.

Die Erfindung samt weiteren Vorteilen ist im Folgenden an Hand einer beispielsweisen Ausführungsform beschrieben, die in der Zeichnung veranschaulicht ist. In dieser zeigen

  • Fig. 1 in schematischer schaubildlicher Darstellung die Anordnung einer Lichtquelle, eines Umlenkspiegels, eines Mikrospiegelarrays und einer Linse nach dem Stand der Technik,
  • Fig. 2 den Aufbau eines Scheinwerfermoduls gemäß der Prinzipdarstellung der Fig. 1, teilweise geschnitten,
  • Fig. 3 in schematischer perspektivischen Darstellung die Anordnung einer Lichtquelle, eines Umlenkspiegels, eines Mikrospiegelarrays und einer Linse nach der Erfindung,
  • Fig. 4 in perspektivischen Darstellung eine erfindungsgemäße Ausbildung von Umlenkspiegel und Linse als Linsen/Spiegel-Block,
  • Fig. 5 in einer perspektivischen Darstellung schräg von vorne gesehen ein Scheinwerfermodul nach der Erfindung mit von einer Blende abgedecktem Linsen/Spiegel-Block,
  • Fig. 6 das Scheinwerfermodul der Fig. 5, jedoch teilweise geschnitten und
  • Fig. 7 in einer Darstellung ähnlich Fig. 6 ein Scheinwerfermodul nach der Erfindung mit einer anderen Ausführung der Blende.
The invention and further advantages are described below using an exemplary embodiment, which is illustrated in the drawing. In this show
  • Fig. 1 the arrangement of a light source, a deflecting mirror, a micromirror array and a lens according to the prior art in a schematic, diagrammatic representation,
  • Fig. 2 the construction of a headlight module according to the schematic diagram of the Fig. 1 partially cut
  • Fig. 3 the arrangement of a light source, a deflecting mirror, a micromirror array and a lens according to the invention in a schematic perspective illustration,
  • Fig. 4 a perspective view of an inventive design of deflecting mirror and lens as a lens / mirror block,
  • Fig. 5 a perspective view obliquely seen from the front a headlight module according to the invention with a lens / mirror block covered by a panel,
  • Fig. 6 the headlight module of the Fig. 5 , but partially cut and
  • Fig. 7 similar in a representation Fig. 6 a headlight module according to the invention with a different design of the panel.

Bezug nehmend zunächst auf Fig. 1 erkennt man den grundlegenden Aufbau eines Scheinwerfermoduls 1 oder einer Scheinwerfereinheit in auch hinsichtlich des Strahlengangs 15 stark vereinfachter Darstellung. Für den Betrieb des Moduls 1 erforderliche Teile, wie eine Stromversorgung, eine elektronische Ansteuerung, Halterungen, weitere Optikelemente etc. sind gleichfalls zur Vereinfachung in der Zeichnung weggelassen.Referring first to 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.

Eine Lichtquelle 2, die hier aus drei Laserdioden bzw. LED-Chips LED1, LED2, LED3 mit nachgeordneten Fokussierlinsen L1, L2, L3 besteht (vgl. auch Fig. 3), sendet das von ihr ausgesandte Licht über einen Umlenkspiegel 3 auf die aktive Fläche eines Mikrospiegelarrays 4. Die einzelnen Mikrospiegel, die intelligent angesteuert werden, erzeugen ein Bild, das über eine Linse 5 als Leuchtbild in den im Allgemeinen vor einem Kraftfahrzeug liegenden Verkehrsraum projiziert wird.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 zeigt den in Fig. 1 dargestellten prinzipiellen Aufbau in Anwendung in einer konventionellen technischen Ausführung, wobei gleiche Elemente mit gleichen Bezugszeichen wie in Fig. 1 versehen sind. Man erkennt die Lichtquelle 2, die auch hier aus einzelnen Lichtquellen, wie LED-Chips, bestehen kann, weiters den in Abstrahlrichtung des Scheinwerfermoduls davor gelegenen Spiegel 3, dessen verspiegelte Fläche hier konkav gekrümmt ist, wieder weiter hinten und oberhalb der Lichtquelle 2 liegend das Mikrospiegelarray 4. Vor dem Mikrospiegelarray 4 ist die Linse 5, oberhalb des Spiegels 3 gelegen, angeordnet, hier als bikonvexer Glaskörper ausgebildet. Man erkennt des Weiteren einen Grundkörper 6 des Moduls 1, in dem das Mikrospiegelarray 4 und eine Platine 7 der Lichtquellen gelagert sind und der für die notwenige Stabilität der Anordnung und gegebenenfalls auch für eine Kühlung sorgt. Für den Spiegel 3 ist eine eigene Spiegelhalterung 8 vorgesehen und die Linse 5 ist in einer entsprechenden Fassung 9 gehalten. 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. One recognizes 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 .

Abgesehen von der notwendigen Zahl der Einzelteile, die auch einer sorgfältigen Justierung bedürfen, ergibt sich meist das Problem, dass der Spiegel nach vorne durch eine ansprechende Designblende abgedeckt werden soll, die Linse jedoch frei bleiben soll. Da diese Teile auf Grund es gewünschten kompakten Aufbaues nahe beieinander liegen, ergeben sich für den Konstrukteur und den Designer Probleme, denn die Abdeckblende wirkt dann oft klobig.Apart from the necessary number of individual parts, which also require careful adjustment, there is usually the problem that the mirror should be covered in front by an attractive design panel, but the lens should remain free. Since these parts are close to each other due to the desired compact structure, problems arise for the designer and the designer, because the cover panel then often looks clunky.

Demgegenüber ist in Fig. 3 der prinzipielle Aufbau eines erfindungsgemäßen Scheinwerfermoduls 1 dargestellt, wobei wieder gleiche Bezugszeichen für gleiche oder vergleichbare Teile verwendet werden. Wesentlich ist hier, dass Linse und Umlenkspiegel einstückig als Linsen/Spiegel-Block 10 ausgebildet sind, welcher einen Linsenbereich 10-3 und einen Spiegelbereich 10-5 aufweist. Der Linsen/Spiegel-Block 10 ist einstückig aus Glas gefertigt. Der Einfachheut halber wird der Begriff "Glas" verwendet, wobei unter diesem in der Beschreibung und dem Ansprüchen verwendeten Begriff ein Material zu verstehen ist, welches die optischen Eigenschaften eines Glases im Sinne der klassischen Optik besitzt, jedoch nicht notwendigerweise ein Glas im physikalischen Sinn sein muss. Das Linsenmaterial muss somit nicht amorph sein, es könnte ebenso auch kristallin sein oder ein Kunststoff, es muss jedenfalls transparent sein und lichtbrechende Eigenschaften aufweisen. Allerdings wird ein optisches Glas im herkömmlichen Sinn bevorzugt, da es eine hohe Genauigkeit der Linse und eine Wärmebeständigkeit am besten gewährleistet.In contrast, in 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. It is essential here that 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. For the sake of simplicity, the term "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. However, an optical glass in the conventional sense is preferred because it best ensures high accuracy of the lens and heat resistance.

Man erkennt weiters, im Folgenden auch aus Fig. 4 , welche eine Ausführungsform eines Linsen/Spiegel-Blocks 10 zeigt, dass an der der Lichtquelle 2 zugewandten Fläche des Linsen/Spiegel-Blocks 10 auf dem Spiegelbereich 10-5 eine verspiegelnde Beschichtung 11, beispielsweise eine hochreflexive Ag- oder Al-Beschichtung, aufgebracht ist. Des Weiteren weist gemäß der Ausführung der Fig. 4 der Linsenbereich 10-3 eine Strahlenblende-Beschichtung 12 auf, die nur einen kreisrunden Durchtrittsbereich 13 für Licht freilässt, um den Kontrast verminderndes Fehllicht zu vermeiden. Vorteilhafterweise kann diese Strahlenblende-Beschichtung 12 aus demselben Material wie die Spiegelbeschichtung bestehen. Bei einer weiteren vorteilhaften Ausführungsform kann die Strahlenblende-Beschichtung aus einem sichtbares Licht absorbierenden Material bestehen, welches beispielsweise mittels einer Zweikomponenten-Spritzgusstechnik oder einem anderen Beschichtungsprozess aufgebracht wird.One recognizes further, in the following also from Fig. 4 , which 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. Furthermore, according to the execution of the Fig. 4 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. In a further advantageous embodiment, 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.

Bei einer bevorzugten und dargestellten Ausführungsform ist die der Lichtquelle zugewandte Fläche des Linsen/Spiegel-Blocks 10, die auch als Innenseite bezeichnet werden kann, im Wesentlichen konkav ausgeformt, wogegen die abgewandte Fläche oder Außenseite konvex geformt ist. Allerdings können alle Flächen den jeweiligen lichttechnischen Erfordernissen auch anders, z.B. plan, konvex oder konkav ausgebildet sein. Dies hängt insbesondere von weiteren, in dem Modul 1 allfällig verwendeten Optikelementen (Linsen) ab.In a preferred and illustrated embodiment, 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. However, 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 und 6 zeigen den in Fig. 3 dargestellten prinzipiellen Aufbau in Anwendung in einer technischen Ausführung eines erfindungsgemäßen Scheinwerfermoduls 1, wobei gleiche Elemente mit gleichen Bezugszeichen wie in vorangehenden Figuren versehen und zur Vereinfachung nicht notwendigerweise nochmals beschrieben sind. Man erkennt hier jedenfalls den Linsen/Spiegel-Block 10, bei welchem die gesamte Hinterseite, ausgenommen der Durchtrittsbereich 13 mit einer verspiegelnden Beschichtung 11, beispielsweise einer Ag-Beschichtung versehen ist. Bei dieser Ausführung dient die weiter nach oben reichende Spiegelbeschichtung 11 somit auch als Strahlenblende-Beschichtung. Fig. 5 ist so gezeichnet, dass man die Hinterseite des Linsen/Spiegel-Blocks 10 von vorne erkennen kann. 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. In any case, one can see here 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. In this embodiment, 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.

Weiters erkennt man in Fig. 5 und 6 auch eine schlanke Blende 14, welche den Linsen/Spiegel-Block 10 rundherum, d.h. seitlich und oben und unten, abdeckt und Designvorgaben entsprechend gestaltet wurde.You can also see in 5 and 6 also a slim cover 14, which covers the lens / mirror block 10 all around, ie laterally and above and below, and design specifications were designed accordingly.

Die Ausführung nach Fig. 7 unterscheidet sich von jener nach Fig. 5 und 6 dadurch, dass die Blende 14 hier auch den Spiegelbereich 10-5 des Linsen/Spiegel-Blocks 10 vorne abdeckt, sodass nur der Linsenbereich 10-3 nicht abgedeckt ist, was wegen des Lichtaustritts natürlich erforderlich ist.The execution after 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.

Die Linse bzw. der Linsenbereich 10-3 kann entweder den vorderen Abschluss des Scheinwerfers bilden oder sie kann auch durch ein Abdeckglas nach vorne geschützt sein. Ebenso kann der Linse auch noch eine zusätzliche, gegebenenfalls in dem Abdeckglas integrierte Optik nachgeordnet sein und es können auch zwischen Lichtquelle und Linsen/Spiegel-Block weitere Optikelemente angeordnet sein. Außerhalb der lichttechnisch relevanten Bereiche des Linsen/Spiegel-Blocks 10 kann dieser Designvorgaben oder mechanischen Anforderungen, beispielsweise bezüglich der Halterung im Modul entsprechend frei gestaltet sein. Bezugszeichenliste 1 Scheinwerfermodul LED 1, 2, 3 Laserdiode, LED-Chip 2 Lichtquelle L1, 2, 3 Fokussierlinse 3 Spiegel 4 Mikrospiegelarray 5 Linse 6 Grundkörper 7 Platine 8 Spiegelhalterung 9 Fassung 10 Linsen/Spiegel-Block 10-3 Linsenbereich 10-5 Spiegelbereich 11 verspiegelnde Beschichtung 12 Strahlenblende-Beschichtung 13 Durchtrittsbereich 14 Blende 15 Strahlengang 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. Likewise, 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. <B> LIST OF REFERENCES </ b> 1 headlight module LED 1, 2, 3 Laser diode, LED chip 2 light source L1, 2, 3 focusing lens 3 mirror 4 Micromirror array 5 lens 6 body 7 circuit board 8th mirror mount 9 version 10 Lens / mirror block 10-3 lens area 10-5 mirror area 11 reflective coating 12 Radiation diaphragm coating 13 Passage region 14 cover 15 beam path

Claims (7)

  1. A headlight module (1) for motor vehicles, comprising at least one light source (2), downstream of which at least one deflection mirror (3), a micromirror array (4) and a lens (5) are arranged in the beam path, the light emitted by the at least one light source being reflected via the deflection mirror onto the micromirror array activated by a control system, and the light pattern produced on the array being projected into the traffic space via the lens as a lighting pattern,
    characterized in that
    the lens and the deflection mirror are formed in one piece as a lens/mirror block (10), which includes a lens area (10-3) and a mirror area (10-5).
  2. The headlight module according to claim 1, characterized in that a reflective coating (11) is applied to the surface area of the lens/mirror block (10) facing the at least one light source in the mirror area (10-5).
  3. The headlight module according to claim 1 or 2, characterized in that at least one further lens system is arranged downstream of the lens area (10-3).
  4. The headlight module according to any one of claims 1 to 3, characterized in that a diaphragm coating is applied to the surface area of the lens/mirror block (10) facing the at least one light source (2) in a passage area (13) surrounding the lens area (10-3).
  5. The headlight module according to any one of claims 1 to 4, characterized in that the surface area of the lens/mirror block (10) facing the at least one light source (2) is concave, and the opposing outer side is convex.
  6. The headlight module according to any one of claims 1 to 5, characterized in that the at least one light source (2) comprises at least one laser diode/LED and a focusing lens (L1, L2, L3) arranged downstream thereof.
  7. A motor vehicle headlight, comprising at least one headlight module (1) according to any one of claims 1 to 6.
EP17784162.4A 2016-11-24 2017-10-06 Headlight module for vehicles Active EP3545230B1 (en)

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ATA51064/2016A AT519118B1 (en) 2016-11-24 2016-11-24 Headlight module for vehicles
PCT/AT2017/060253 WO2018094430A1 (en) 2016-11-24 2017-10-06 Headlight module for vehicles

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EP3545230A1 EP3545230A1 (en) 2019-10-02
EP3545230B1 true EP3545230B1 (en) 2020-01-22

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US (1) US10876698B2 (en)
EP (1) EP3545230B1 (en)
JP (1) JP6765011B2 (en)
KR (1) KR102273381B1 (en)
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WO (1) WO2018094430A1 (en)

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

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