EP3717828B1 - Leuchtmodul für ein kraftfahrzeug und beleuchtungs- und/oder signalvorrichtung mit einem solchen modul - Google Patents

Leuchtmodul für ein kraftfahrzeug und beleuchtungs- und/oder signalvorrichtung mit einem solchen modul Download PDF

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Publication number
EP3717828B1
EP3717828B1 EP18836347.7A EP18836347A EP3717828B1 EP 3717828 B1 EP3717828 B1 EP 3717828B1 EP 18836347 A EP18836347 A EP 18836347A EP 3717828 B1 EP3717828 B1 EP 3717828B1
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Prior art keywords
face
previous
light
impact surface
rays
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English (en)
French (fr)
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EP3717828A1 (de
Inventor
Julien RIZZI
Fabrice EGAL
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Valeo Vision SAS
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Valeo Vision SAS
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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
    • F21S41/285—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
    • F21S41/60—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
    • F21S41/10—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
    • 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
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/25—Projection lenses
    • F21S41/26—Elongated 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
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F21S41/321—Optical layout thereof the reflector being a surface of revolution or a planar surface, e.g. truncated
    • 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
    • F21S41/30—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
    • F21S41/30—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
    • F21S41/365—Combinations of two or more separate reflectors successively reflecting the light
    • 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
    • F21S43/20—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
    • 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
    • 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
    • F21W2102/30—Fog lights
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the present invention relates to a lighting and/or signaling device for a motor vehicle.
  • a preferred application concerns the automotive industry, for vehicle equipment, in particular for the production of devices capable of emitting light beams, also called lighting and/or signaling functions, generally meeting regulations.
  • the invention can allow the production of a light beam, preferably highly resolved, of the pixelated type, in particular for signaling and/or participation in lighting functions at the front of a vehicle. It can be used to display pictograms or variable patterns on a projection surface of the outgoing light.
  • FIG. 1 gives an example of the implementation of a pixelated and digital imaging system in the form of a micro-mirror matrix 13 in a beam projection module.
  • a light source 11 generates light rays in the direction of an optical device 12 making it possible to generate a beam which will impact a reflection face 14 of a micro-mirror matrix 13.
  • the light is either returned to the projection device 15, or returned to a dead zone so as not to participate in active illumination.
  • the patent document WO 2017/143371 A1 discloses a headlight for a motor vehicle comprising a matrix of micro mirrors and provided with a pair of light sources with electroluminescent diodes each associated with a lens for focusing a light beam on the reflection surface of the matrix of micro mirrors.
  • This duplication of sources obviously increases the luminous flux leaving the projector.
  • it inevitably increases cost and bulk.
  • the present invention aims to remedy at least in part the drawbacks of current techniques and aims in particular to propose a simpler, more compact and more economical optical system.
  • the light rays are deflected during their journey from the source light towards the projection device at least in part thanks to the prism.
  • the function of the prism includes, upstream of the imaging system, a transmission of light rays coming from the source and, downstream of the imaging system, a total internal reflection making it possible to carry out an angular modification of the rays, advantageously strong , so as to return the rays leaving the prism towards the projection device.
  • the prism allows strong angular variations in beam direction between the beam upstream of the imaging system and the beam downstream of the latter.
  • the optical input device can advantageously be brought closer to the imaging system and/or its diameter increased (the increase in illumination is directly linked to the increase in the diameter of a lens). In doing so, the luminous efficiency of the beam impacting the imaging system is higher which makes it possible, despite the use of a light-emitting diode source, to obtain satisfactory illumination at the output.
  • the present invention also relates to a motor vehicle lighting and/or signaling device equipped with at least one light module.
  • This device may comprise at least one additional module comprising at least one of an additional module configured to produce a basic low beam beam and an additional module configured to produce a basic high beam beam.
  • the pixelated beam can be an effective complement to another beam, or even several.
  • the device comprises an additional module configured to produce a basic low beam beam and an additional module configured to produce a basic high beam beam and in which the pixelated output beam of the module partly overlaps both the high beam base beam and/or the low beam base beam.
  • the pixelated beam can thus be used both to perform a ground writing function in the portion overlapping with the dipped beam and to contribute to anti-glare high beam functions (Glare Free High Beam in English). ) or dynamic cornering light for the portion astride with the main beam.
  • the present disclosure also describes a vehicle equipped with at least one module and/or a device according to the present invention.
  • the module is such that the second face and the third face are carried by two planes perpendicular to each other.
  • it preferably comprises an optical device for projecting the output beam receiving at least partially the at least part of the returned rays.
  • the optical projection device has an optical axis perpendicular to the second face.
  • the optical projection device has an optical axis forming an obtuse angle with an average direction of the transmitted part. This This possibility is very useful for limiting bulk and gives great freedom in lens size for the input optical device.
  • the third face is parallel to the impact surface.
  • the third face includes an anti-reflective coating. This avoids the phenomena of ghost images that can be produced by strong reflections returning from the mirrors on the third face.
  • the prism is made of a material whose Abbe number is greater than or equal to 50. Good conditions for total internal reflection are guaranteed over the entire visible light range.
  • the prism is made of PMMA or Crown glass. These materials are particularly economical.
  • a window is placed between the impact surface and the third face.
  • a first face of the window is located opposite the impact surface and includes an anti-reflective coating. This avoids the phenomena of ghost images that can be produced by strong reflections returning from the mirrors on the window.
  • the anti-reflective coating is configured to reflect less than 4%, preferably less than 2% of light rays in the visible range.
  • the average direction of the transmitted part forms, with a normal to the third face, an angle between -20° and +20°.
  • the distance separating the impact surface and the third face is less than or equal to 2 mm, and preferably less than or equal to 1 mm.
  • the pixelated and digital imaging system includes an array of micro-mirrors.
  • the output beam is configured to project at least one pictogram pattern.
  • the module is configured to project a light beam at the front of a motor vehicle.
  • verticality In the characteristics set out below, the terms relating to verticality, horizontality and transversality, or their equivalents, are understood in relation to the position in which the lighting module is intended to be mounted in a vehicle .
  • the terms “vertical” and “horizontal” are used in this description to designate directions, following an orientation perpendicular to the plane of the horizon for the term “vertical”, and following an orientation parallel to the plane of the horizon for the term “horizontal”. They must be considered in the operating conditions of the device in a vehicle.
  • the use of these words does not mean that slight variations around the vertical and horizontal directions are excluded from the invention. For example, an inclination relative to these directions of the order of + or - 10° is considered here as a minor variation around the two preferred directions.
  • the device of the invention incorporates at least one module making it possible to generate a pixelated type beam, but also preferably ensures the projection of at least one other beam, via at least one other module.
  • the device of the invention can therefore be complex and combine several modules which can also possibly share components.
  • the term passing beam is understood to mean a beam used when there are crossed and/or followed vehicles and/or other elements (individuals, obstacles, etc.) on the roadway or nearby.
  • This beam has an average downward direction. It can possibly be characterized by an absence of light above a plane inclined by 1% downwards on the side of traffic in the other direction, and another plane inclined by 15 degrees compared to the previous one of the side of traffic in the same direction, these two plans defining a cutoff in compliance with European regulations. This upper downward cutoff aims to avoid dazzling other users present in the road scene extending in front of the vehicle or on the sides of the road.
  • the low beam formerly derived from a simple headlight, has undergone developments, the low beam function being able to be coupled with other lighting characteristics which are still considered as low beam functions within the meaning of the present invention.
  • the basic main beam has the function of illuminating the scene in front of the vehicle over a large area, but also over a significant distance, typically around 200 meters.
  • This light beam due to its lighting function, is mainly located above the horizon line. It may have a slightly ascending optical axis of illumination, for example.
  • the device can also be used to form other lighting functions via or beyond those described above.
  • one aspect of the invention relates to a module allowing the generation of an output beam of the pixelated type, that is to say processed by a pixelated and digital imaging system offering great flexibility, by the control of the imaging system, in terms of beam configurations actually projected.
  • pixelated and digital imaging system pixelated ray imaging system or their equivalents have the definition of a system emitting a light beam, said light beam being formed of a plurality of light sub-beams , each sub-light beam can be controlled independently of the other sub-light beams.
  • These systems can be for example micro-mirror matrices 23 as shown, liquid crystal devices, digital light processing technology (Digital Light Processing (DLP) in Anglo-Saxon terms).
  • Micro-mirror matrices are also called, in English terms, “Digital Micromirror Device” (DMD).
  • Each independently controllable sub-beam forms a pixelated ray.
  • the control of the micro-mirror matrices is carried out by control electronics.
  • Each micro-mirror preferably has two operating positions. A so-called active position corresponds to an orientation of the micro-mirrors allowing the reflection towards an output diopter of an incident light beam.
  • a so-called passive position corresponds to an orientation of the micro-mirrors allowing the reflection towards an absorbing surface of an incident light beam, that is to say towards a direction different from that of the output diopter.
  • MEMS mechanical micro-electronic systems known under the term MEMS, which also includes in the present application nano systems called NEMS.
  • a light source 21 is used to illuminate an impact surface 24 of the pixelated imaging system, for example the reflective face of the micro-mirrors of a micro-mirror matrix 23, and the rays treated by the pixelated imaging system are returned to be projected, generally via an output optical element such as a projector glass or a projection lens.
  • the present invention can use light sources of the light-emitting diode type, also commonly called LEDs. These may possibly be organic LED(s). In particular, these LEDs can be equipped with at least one chip capable of emitting light of advantageously adjustable intensity according to the lighting and/or signaling function to be performed.
  • the term light source here means a set of at least one elementary source such as an LED capable of producing a flow leading to generating at least one light beam at the output of the module of the invention.
  • the output face of the source is of rectangular section, which is typical for LED chips.
  • the light source 21 is configured to produce a luminous flux greater than 3000 Im and for example of the order of 4000 lm.
  • FIG 2 presents an exemplary embodiment of the present invention which allows relative placement of the light source and the optical input device improved relative to the state of the art.
  • a light source 21 which can be of the type previously indicated.
  • the light source 21 is configured to emit in a half-space from an emissive zone of rectangular shape. At least part of the rays emitted by the source 21 is optically processed by an optical device 22.
  • the latter may comprise one or more lenses of more or less complex shape.
  • the optical device 22 takes the form of a lens having an entry face 22a making it possible to admit the light rays coming from the source 21 and an exit face 22b ensuring projection towards the rest of the module.
  • the light rays first enter through a prism 26, via a first face 26a of the latter.
  • the angle formed between the first face 26a and the third face 26c is between 40 and 50°, preferably between 44 and 46°, more preferably it is 45°, within manufacturing tolerances. This avoids generating field curvature aberrations in the rays reflected by the impact surface 24 towards the internal side of the first face 26a and therefore reduces the cost of the projection system because it will not require a correction element. these aberrations.
  • the first face 26a forms an acute angle with the average direction of the transmitted part “a” of the light rays coming from the source 21. More preferably, the average direction and the normal to the first face 26a forms an angle between -20° and + 20°. We thus favor the quantity of flow retransmitted.°.
  • the third face 26c forms an acute angle with the average direction of the transmitted part “a” of the light rays coming from the source 21. More preferably, the average direction and the normal to the third face 26c forms an angle between -20° and + 20°. This greatly reduces the generation of parasitic rays during reflection on the impact surface 24 and promotes the emission of a pixelated beam with high contrast, which is desirable for an anti-glare function.
  • the prism 26 a transparent material and advantageously having a high Abbe number, preferably greater than or equal to 50. It may be Crown glass or even polymethacrylate. methyl (PMMA).
  • the light rays entering the prism 26, referenced “a” in figure 2 are directed towards a third face 26c of the prism 26 facing which the imaging system is located, which is in the example shown a matrix of micro-mirrors 23.
  • the impact surface 24 (corresponding to the exposed surface of the micro-mirrors) is parallel to the third face 26c, the latter being preferably planar.
  • the impact surface 24 is protected by a window 27, a first face 27a of which is located facing the impact surface 24.
  • a second face 27b of the window 27 is located opposite, and in contact or not, of the third face 26c.
  • the distance separating the impact surface 24 and the third face 26c is limited and can for example be less than 2 mm or even 1 mm, and preferably 0.5 mm.
  • the presence of the window 27 can be used to adjust this spacing without risk of damaging the impact surface 24.
  • the anti-reflective is chosen with a maximum reflection of 1% in the visible spectrum. In the context of use with a need for high contrast, we will favor a maximum reflection of 0.2%, more preferably 0.1% in the visible spectrum.
  • the impact surface 24 defined by all of the micro-mirrors is of rectangular shape. It preferably extends in a plane perpendicular to a plane carrying the second face 26b of the prism 26 and/or parallel to the optical axis of the projection device 25.
  • the rays are reflected, either so as to participate in the projected beam, or so as to be inactive. This is how the configuration of the pixelated beam can be controlled as desired.
  • the active rays “c” are directed so as to re-enter the prism 26 via the third face 26c. This ray path is configured so that the active rays “c” reach the first face 26a again. However, this time, the angle of the rays relative to the first face 26a is such that it produces a total internal reflection in the prism 26 so as to form reflected rays “d” which are directed towards the second face 26b of the prism 26.
  • the outgoing rays “e” are directed towards a projection device 25, which is or which typically comprises a projection lens. In the case illustrated, it is a planar convex lens, the entry face 25a of which is planar and the exit face 25b is convex.
  • the reference “f” represents an example of a projected ray.
  • the prism 26 is configured, in terms of angle and choice of materials, so that all of the light rays coming from the input device 22 are transmitted to the matrix of micro mirrors 23 and so that all of the light rays reflected by the latter is reflected by the first face 26a.
  • the area of the first face 26a through which the rays "a” enter the prism 26 and the area of the first face 26a through which the rays "c" again reach the first face 26a to be reflected can overlap.

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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)
  • Optical Elements Other Than Lenses (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Claims (16)

  1. Beleuchtungs- und/oder Signalisierungsvorrichtung für ein Kraftfahrzeug, die mit mindestens einem Leuchtmodul ausgestattet ist, das dazu ausgestaltet ist, ein Austrittsbündel zu erzeugen, umfassend eine Lichtquelle (21), umfassend mindestens eine Leuchtdiode, ein System zur gepixelten und digitalen Bildgebung und eine optische Eintrittsvorrichtung (22), die, entlang des Wegs der aus der Lichtquelle (21) hervorgehenden Lichtstrahlen, zwischen die Lichtquelle (21) und das System zur gepixelten und digitalen Bildgebung gesetzt ist, so dass mindestens ein Teil, durchgelassener Teil genannt, der aus der Lichtquelle (21) hervorgehenden Lichtstrahlen zu einer Auftrefffläche (24) des Systems zur gepixelten und digitalen Bildgebung durchgelassen wird, dadurch gekennzeichnet, dass das Leuchtmodul (26) ein Prisma beinhaltet, das eine erste Fläche (26a), eine zweite Fläche (26b) und eine dritte Fläche (26c) umfasst und dazu ausgestaltet ist:
    - zwischen der ersten Fläche (26a) und der dritten Fläche (26c) mindestens einen Teil der Lichtstrahlen des durchgelassenen Teils zu der Auftrefffläche (24) durchzulassen;
    - reflektierte Strahlen zu bilden durch Reflexion mindestens eines Teils von Lichtstrahlen, die von der Auftrefffläche (24) zurückgeworfen werden, durch innere Totalreflexion auf der ersten Fläche (26a);
    - mindestens einen Teil der reflektierten Strahlen über die zweite Fläche (26b) zu einem Projektionsbereich zurückzuwerfen
    und dadurch gekennzeichnet, dass sie ein zusätzliches Leuchtmodul umfasst, das dazu ausgestaltet ist, ein Abblendlicht-Basisbündel zu erzeugen, und ein zusätzliches Leuchtmodul, das dazu ausgestaltet ist, ein Fernlicht-Basisbündel zu erzeugen, und bei der das Austrittsbündel des Leuchtmoduls das Fernlicht-Basisbündel und/oder das Abblendlicht-Basisbündel zugleich teilweise überlappt.
  2. Vorrichtung nach dem vorhergehenden Anspruch, bei der die zweite Fläche (26b) und die dritte Fläche (26d) von zwei senkrecht zueinander verlaufenden Ebenen getragen werden.
  3. Vorrichtung nach einem der vorhergehenden Ansprüche, beinhaltend ferner eine optische Projektionsvorrichtung (15) zur Projektion des Austrittsbündels, die mindestens teilweise den mindestens einen Teil der zurückgeworfenen Strahlen empfängt.
  4. Vorrichtung nach dem vorhergehenden Anspruch, bei der die optische Projektionsvorrichtung (15) eine optische Achse (29) aufweist, die senkrecht zu der zweiten Fläche (26b) verläuft.
  5. Vorrichtung nach einem der beiden vorhergehenden Ansprüche, bei der die optische Projektionsvorrichtung (15) eine optische Achse (29) aufweist, die einen stumpfen Winkel mit einer mittleren Richtung des durchgelassenen Teils bildet.
  6. Vorrichtung nach einem der vorhergehenden Ansprüche, bei der die dritte Fläche (26c) parallel zu der Auftrefffläche (24) ist.
  7. Vorrichtung nach einem der vorhergehenden Ansprüche, bei der das Prisma (26) aus einem Material ist, dessen Abbe-Zahl größer als oder gleich 50 ist.
  8. Vorrichtung nach einem der vorhergehenden Ansprüche, bei der das Prisma (26) aus PMMA oder Kronglas ist.
  9. Vorrichtung nach einem der vorhergehenden Ansprüche, beinhaltend eine Glasscheibe (27), die zwischen der Auftrefffläche (24) und der dritten Fläche (26c) angeordnet ist.
  10. Vorrichtung nach dem vorhergehenden Anspruch, bei der eine erste Fläche (27a) der Glasscheibe, die der Auftrefffläche (24) gegenüberliegt, eine Antireflexbeschichtung (28) umfasst.
  11. Vorrichtung nach dem vorhergehenden Anspruch, bei der die Antireflexbeschichtung (28) dazu ausgestaltet ist, weniger als 4 %, bevorzugt weniger als 2 %, der Lichtstrahlen im sichtbaren Bereich zu reflektieren.
  12. Vorrichtung nach einem der vorhergehenden Ansprüche, bei der die mittlere Richtung des durchgelassenen Teils mit einer Senkrechten zur ersten Fläche einen Winkel zwischen -20° und +20° bildet.
  13. Vorrichtung nach einem der vorhergehenden Ansprüche, bei welcher der Abstand, der die Auftrefffläche (24) und die dritte Fläche (26c) trennt, kleiner als oder gleich 2 mm und bevorzugt kleiner als oder gleich 1 mm ist.
  14. Vorrichtung nach einem der vorhergehenden Ansprüche, bei der das System zur gepixelten und digitalen Bildgebung eine Matrix aus Mikrospiegeln (23) umfasst.
  15. Vorrichtung nach einem der vorhergehenden Ansprüche, bei der das Austrittsbündel dazu ausgestaltet ist, mindestens ein Piktogrammmuster zu projizieren.
  16. Vorrichtung nach einem der vorhergehenden Ansprüche, die dazu ausgestaltet ist, ein Lichtbündel an der Front eines Kraftfahrzeugs zu projizieren.
EP18836347.7A 2017-11-30 2018-11-30 Leuchtmodul für ein kraftfahrzeug und beleuchtungs- und/oder signalvorrichtung mit einem solchen modul Active EP3717828B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1761493A FR3074260B1 (fr) 2017-11-30 2017-11-30 Module lumineux pour vehicule automobile, et dispositif d'eclairage et/ou de signalisation muni d'un tel module
PCT/EP2018/025303 WO2019105588A1 (fr) 2017-11-30 2018-11-30 Module lumineux pour vehicule automobile, et dispositif d'eclairage et/ou de signalisation muni d'un tel module

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EP3717828A1 EP3717828A1 (de) 2020-10-07
EP3717828B1 true EP3717828B1 (de) 2023-09-20

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CN112709973B (zh) * 2020-12-31 2021-11-30 深圳市必拓电子股份有限公司 一种利用激光激发荧光产生复合光的方法及其光路结构

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CN111406181B (zh) 2022-08-23
FR3074260B1 (fr) 2020-11-20
FR3074260A1 (fr) 2019-05-31
CN111406181A (zh) 2020-07-10
EP3717828A1 (de) 2020-10-07
US20200408377A1 (en) 2020-12-31
WO2019105588A1 (fr) 2019-06-06

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