EP3205928A1 - Phare de véhicule automobile équipé d'un élément structurel à matrice à cristaux liquides - Google Patents

Phare de véhicule automobile équipé d'un élément structurel à matrice à cristaux liquides Download PDF

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Publication number
EP3205928A1
EP3205928A1 EP17154621.1A EP17154621A EP3205928A1 EP 3205928 A1 EP3205928 A1 EP 3205928A1 EP 17154621 A EP17154621 A EP 17154621A EP 3205928 A1 EP3205928 A1 EP 3205928A1
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EP
European Patent Office
Prior art keywords
light
optical element
beam path
projection lens
liquid crystal
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.)
Granted
Application number
EP17154621.1A
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German (de)
English (en)
Other versions
EP3205928B1 (fr
Inventor
Martin Licht
Joachim Knittel
Christian Buchberger
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 Automotive Lighting Reutlingen Germany GmbH
Original Assignee
Automotive Lighting Reutlingen GmbH
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Publication date
Application filed by Automotive Lighting Reutlingen GmbH filed Critical Automotive Lighting Reutlingen GmbH
Publication of EP3205928A1 publication Critical patent/EP3205928A1/fr
Application granted granted Critical
Publication of EP3205928B1 publication Critical patent/EP3205928B1/fr
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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
    • F21S41/68—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on screens
    • F21S41/683—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on screens by moving screens
    • F21S41/689—Flaps, i.e. screens pivoting around one of their edges
    • 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
    • F21S41/12—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of emitted light
    • F21S41/135—Polarised
    • 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
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/40—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades
    • 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
    • F21S41/63—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on refractors, filters or transparent cover plates
    • F21S41/64—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on refractors, filters or transparent cover plates by changing their light transmissivity, e.g. by liquid crystal or electrochromic devices
    • F21S41/645—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on refractors, filters or transparent cover plates by changing their light transmissivity, e.g. by liquid crystal or electrochromic devices by electro-optic means, e.g. liquid crystal or electrochromic devices

Definitions

  • the present invention relates to a motor vehicle headlight according to the preamble of claim 1.
  • Such a headlight is from the DE 10 2014 213 636 A1 known. It has a light source, a liquid crystal matrix component, which is arranged in the beam path of light emanating from the light source.
  • liquid crystal matrix components are used as a display (LCD) but also in video projectors.
  • LCD liquid crystal matrix components
  • One Another disadvantage is a rather weak contrast ratio between luminous and non-luminous matrix elements.
  • the function of the liquid-crystal matrix elements presupposes, as brightness-controllable segments of a light exit surface of the liquid-crystal matrix component, illumination with linearly polarized light.
  • Light of conventional light sources is initially not polarized and has two portions of mutually orthogonal polarization directions.
  • the light is polarized before it strikes the liquid crystal matrix device.
  • the polarization is usually carried out by a polarizing filter, which passes only one of the two shares almost unchanged and absorbs or reflects the other part.
  • This document shows a polarizing beam splitter which splits the unpolarized light of a light source into two parts of different polarization.
  • the two components illuminate different regions (matrix elements) of a liquid-crystal matrix component whose transmission can be controlled separately.
  • a polarizing beam splitter is arranged between the light source and the liquid crystal matrix component such that it directs the light incident from the light source into a matrix beam path and a light beam
  • the base beam path consists of light components of a second polarization direction and without touching the liquid crystal matrix component leads to a first optical element, which bundles the incident light in the base beam path.
  • both light components can contribute to the generation of a spotlight distribution.
  • the invention allows in this way the efficient generation of a spotlight distribution.
  • a rule-conforming basic light distribution or low-beam distribution is generated with the light propagating in the matrix beam path.
  • Such a light distribution is characterized in particular by the fact that it does not generate unacceptable glare.
  • the headlamp is used as intended during driving, this light is used in particular below the horizon Area of the apron of the motor vehicle illuminated efficiently.
  • the second beam path could also be used to produce a low beam distribution or a high beam basic light distribution as shown in FIG DE 10 2008 036 193 occurs.
  • a further light distribution supplementing this basic light distribution or low beam distribution to form an overall light distribution can be generated in advance of the vehicle.
  • the brightness pattern of the further light distribution can be adjusted with a fineness determined by the number of matrix elements of the liquid crystal matrix.
  • the further light distribution is also referred to below as the pixel light distribution. It lies in the apron of the vehicle predominantly above the horizon. A dazzling of other road users who are in the area illuminated by this further light distribution can be avoided or at least reduced by darkening the segment of the liquid matrix component illuminating this road user.
  • the headlamp comprises a projection lens, which is arranged and arranged to collect light emanating from the liquid crystal matrix component light of the light source and to direct in the apron of the headlamp.
  • a preferred embodiment is characterized in that the first optical element in the base beam path propagating light (low beam) focused in an intermediate image area, which lies in the base beam path between the first optical element and the projection lens, wherein a distance of the intermediate image area of the projection lens of inter-frame focal distance (distance of the focal point from the vertex of the lens surface, which faces the focal point) corresponds to the projection lens.
  • the intermediate image area may be a flat or a curved surface.
  • an inner light distribution is generated in the intermediate image area as the original image of the basic light distribution or the low-beam distribution, which is projected by the projection lens into the illumination zone in front of the vehicle.
  • a further preferred embodiment is characterized by a mirror aperture which has a diaphragm edge and which is arranged in the base beam path (dipped beam) between the first optical element and the projection lens such that the diaphragm edge lies at a distance from the projection lens, which is the inter-frame focal distance of the projection lens corresponds, and which mirror aperture extending from the diaphragm edge in a direction facing from the projection lens to the diaphragm edge direction.
  • the diaphragm edge is imaged as a sharp cut-off line.
  • the aperture is realized as a mirror aperture with the said arrangement, a high efficiency is achieved, because not shaded for the generation of the dark area of the light distribution shading, but by the reflection contributes to the illumination of the bright area.
  • the mirror aperture extends parallel to an optical axis of the projection lens.
  • a further preferred embodiment is characterized by a focusing third optical element which is arranged in the matrix beam path (pixel light) between the beam splitter and the intermediate image surface in such a way that it focuses light propagating in the matrix beam path into the intermediate image surface.
  • a third optical element is disposed between the light source and the beam splitter and parallelizes the light emanating from the light source before striking the beam splitter.
  • a fourth optical element in the base beam path is arranged between the beam splitter and the first optical element such that it focuses light incident from the beam splitter into a focal region of the first optical element, and that light originating from the focal region Light source illuminated the first optical element.
  • the light of the light source for illuminating the liquid crystal matrix component is first parallelized by the third optical element, it may be difficult to generate a low beam distribution through an image taken with the first optical element.
  • the fourth optical element the light passed through the polarizing beam splitter can be refocused.
  • the focal region facing the first optical element can then serve as the light source, from the light of which the first optical element generates a low-beam light distribution.
  • a first diaphragm is located between the beam splitter and the first optical element and projects into the base beam path.
  • the aperture edge of this aperture is displayed as a cut-off line in the apron.
  • This panel can connect in one piece on the side facing away from the edge of the mirror panel. But it is preferably not reflective.
  • the diaphragm is located between the fourth optical element and the first optical element and projects into the base beam path. If a projection lens is not present, the diaphragm edge of this diaphragm is imaged by the first optical element as a light-dark boundary in the apron.
  • the first diaphragm is movable between a first position, in which it does not protrude into the base beam path, and a second position, in which it projects into the base beam path.
  • the basic light or low-beam distribution can be generated both with and without imaging of the diaphragm edge as a sharp cut-off line.
  • the polarizer is a thin-film polarizer.
  • the polarizer has the basic shape of a beam splitter cube which has a light entry surface facing the light source, a first light exit surface facing the liquid crystal matrix component, a second light exit surface facing the first optical element, and one of the second light exit surfaces Projection lens facing the third light-emitting surface, wherein the light entry surface is curved so that it parallelizes the light incident from the light source, and wherein the second light exit surface is curved so that they are the exiting light in a lying between the second light exit surface and the first optical element Fokal Siemens focused and wherein the third light exit surface is curved so that it focuses light exiting in the intermediate image area.
  • a first light exit surface faces the liquid crystal matrix component.
  • a further preferred embodiment is characterized in that the cover has a first region which is arranged so that it is preferably illuminated by propagating in the matrix beam light and there has a shape and / or coating in which the reflectance for the first Polarization direction is minimal, and that the cover plate has a second region which is arranged so that it is preferably illuminated by light propagating in the base beam path and which has there a shape and / or coating in which the reflectance for the second polarization direction is minimal.
  • the transmission is maximum, which is favorable for a desired high efficiency.
  • a depolarizer is arranged, which converts the incident polarized light into unpolarized light, and that in the base beam path (low beam) in the light path after the beam splitter, a depolarizer is arranged, which polarized the incident Light converted to unpolarized light.
  • FIG. 1 a first embodiment of a headlamp of a motor vehicle according to the invention.
  • the headlight 10 has a housing 12, whose light exit opening is covered by a transparent cover 14.
  • a light source 1 Inside the housing 12 there is a light source 1, a first optical element 5, a beam splitter 3, a liquid crystal matrix component 4, optionally a second optical element 6, a third optical element 2, a projection lens 7 and a control unit 8.
  • the control unit 20 is adapted, in particular programmed, to control the light source 1 and the properties of the liquid crystal matrix component 4 as a function of signals from a desired driver 18 or a higher-level light control device of the motor vehicle.
  • the light source 1 preferably has at least one, but preferably a plurality of light-emitting diodes or laser diodes.
  • the third optical element 2 is located in the bundle of light emitted by the light source 1 and is preferably realized as a lens, microlens or catadioptric optical attachment.
  • the beam splitter 3 is shown here schematically as a beam splitter cube, which consists of two prismatic halves, which in the plane of the drawing in each case the Have a shape of a right triangle and equilateral triangle and which are along their respective right angle opposite base surfaces are assembled into a cube. Deviating from this schematic representation, which allows a clear representation of the beam paths, the beam splitter is preferably a thin-film polarizer.
  • the beam splitter 3 has a light entrance surface 3.1 facing the third optical element 2, a first light entrance and exit surface 3.2 facing the liquid crystal matrix component 4, a second light exit surface 3.3 facing the first optical element 5, and a third light exit surface 3.4 facing the projection lens 7.
  • An intermediate image area 9 lies between the optional second optical element 6 and a light entry surface of the projection lens 7.
  • the FIG. 2 shows different elements from the FIG. 1 together with a matrix beam path 22.
  • the third optical element 2 parallelizes outgoing light from the light source 1. This light is not polarized. Via the light entry surface of the beam splitter 3 facing the light source, the parallelized light enters the beam splitter 3 and is split in the interior of the beam splitter 3 into a matrix beam path 22 and a base beam path 24.
  • the second beam path 24 is in the FIG. 3 shown.
  • the light component propagating in the matrix beam path 22 is linearly polarized in a first direction.
  • the propagating in the base beam 24 light component is linearly polarized in a second direction.
  • the splitting takes place in the illustrated example in that the first portion at the interface 3.0 of the beam splitter 3 between the two prisms is reflected to the side, while the second portion substantially without changing direction by the Interface 3.0 passes through.
  • the light component propagating in the matrix beam path 22 exits the beam splitter 3 via the first light exit surface 3.2 which faces the liquid crystal matrix component 4 and illuminates the liquid crystal matrix component 4 divided into segments (matrix elements).
  • the degree of reflection of each segment can be set by the control unit 20. This is possible, for example, with an LCoS component (Liquid Crystal on Silicon).
  • a conventional LCoS device causes only the rotation of the polarization in a pixel. The light with the rotated polarization was then no longer reflected at the beam splitter surface 3.0. Unrotated portions are reflected back to the light source 1 at the beam splitter surface 3.0.
  • Each individually controllable as a matrix element of the liquid crystal matrix in its optical properties segment thus represents a pixel on the light exit surface of the liquid crystal matrix component 4.
  • the resulting in the sum of all pixels on the light exit surface of the liquid crystal matrix component first inner light distribution, if the optional second optical element 6 is present is shown as an intermediate image in the intermediate image area 9.
  • the resulting intermediate image since it is still in the housing, also constitutes an internal light distribution.
  • This second internal light distribution is projected by the projection lens 7 into a lighting zone in front of the headlight 10.
  • a high beam component is generated on a total light distribution of the headlight 10.
  • Individual segments of the high-beam component can be controlled in their brightness by controlling the brightness (or the polarization) of the associated matrix element of the liquid-crystal matrix component.
  • This proportion of the total light distribution is therefore also referred to as pixel light distribution.
  • All embodiments and embodiments may be combined with a depolarizer 13 disposed in one or both beam paths 22, 24 and converting the incident polarized light into unpolarized light.
  • the depolarizer 13 may be, for example, a polarization mixer plate or a quarter-wave phase plate.
  • the FIG. 3 shows elements of the subject FIGS. 1 and 2 with the base beam 24.
  • the base beam 24 propagates the light component of the emanating from the light source 1 and entering the beam splitter 3 light, which has passed through the beam splitting interface 3.0 substantially without change of direction. This proportion is also linearly polarized. It has a polarization orthogonal to the polarization of the first component.
  • the second component emerges from the beam splitter 3 via the second light exit surface 3.3 of the beam splitter 3, which faces the first optical element 5, and is deflected by the first optical element 5, which is a reflector in this case, so that it passes through the projection lens 7 passes and distributed in advance of the headlight in the form of a basic light distribution or low beam distribution.
  • the second beam path 24 is characterized in that, without touching the liquid crystal matrix component 4, it leads to the first optical element 5, which directs the light incident in the base beam path 24 onto the projection lens 7.
  • the FIG. 4 shows the base beam path 24 for a second embodiment.
  • the second embodiment differs from the first embodiment by the optical properties of the first optical element 5 and in that this embodiment has a mirror aperture 8.
  • the first optical element 5 is also a reflector here. Regardless of whether the first optical element 5 is realized as a reflector, lens or catadioptric optics, it is in particular by its shape and arrangement, optionally also by its refractive index, adapted to focus in the base beam 24 propagating light in the intermediate image area 9.
  • the intermediate image area 9 lies in the base beam path 24 between the third optical element 5 and the projection lens 7, wherein a distance of the intermediate image area 9 from the projection lens 7 corresponds to the intermediate image-side focal length of the projection lens 7.
  • the mirror aperture 8 has a diaphragm edge 8.1 and is arranged in the base beam path 24 between the first optical element 5 and the projection lens 7 such that the diaphragm edge 8.1 is at a distance from the projection lens 7, which corresponds to the inter-frame focal length of the projection lens 7.
  • the diaphragm edge 8.1 thus lies in said focal region and is therefore projected as a sharp light-dark boundary in the illumination zone of the headlight 10.
  • the mirror aperture 8 extends, starting from the diaphragm edge 8.1, in a direction opposite to the direction in which the projection lens 7 is located. These Direction is preferably parallel to an optical axis of the projection lens 7.
  • the reflective effect is preferably achieved by a metallic coating that side 8.2 of the aperture 8, which faces the first optical element 5.
  • the projection lens 7 images both the pixel light distribution generated by the matrix beam path 22 and the base light distribution or low beam distribution generated by the basic beam path 24 into the apron of the headlamp 10 so that a total light distribution composed of these two light distributions arises there.
  • the FIG. 5 shows a third embodiment.
  • the third embodiment differs from the first two embodiments in that a fourth optical element 28 is arranged in the basic beam path 24 (low beam) between the beam splitter 3 and the first optical element 5 so that it is incident from the beam splitter 3 forth light in a focal region of the focused first optical element 5, and that emanating from the focal region light of the light source, the first optical element 5 illuminated.
  • the focal region thus represents a kind of light source for polarized light.
  • FIG. 5 moreover shows a second diaphragm 30, which is located between the beam splitter 3 and the first optical element 5 and which projects into the basic beam path 24, more precisely into the focal region of the fourth optical element 28.
  • a sharp cut-off line is generated in the focal area, which is separated from the first optical element 5 by direct imaging, that is, without being transmitted through the projection lens 7 (shown in FIG. 5 not shown is) to be deflected, is directed into the apron of the headlamp 10.
  • the aperture can thus be united with the mirror aperture of the preceding embodiment.
  • the second diaphragm 30 is located between the fourth optical element 28 and the first optical element 5 and protrudes into the base beam path 24, as in the FIG. 3 is shown.
  • This second beam path consists of largely parallel light.
  • the fourth optical element 28 is not present in such a beam path. It may therefore be sufficient to use the second diaphragm 30 without prior focusing by the fourth optical element 28.
  • the second diaphragm 30 is movable between a first position, in which it does not project into the base beam path 24, and a second position, in which it projects into the base beam path 24.
  • the sharp cut-off line can be replaced by a less sharp light-dark transition, in order to avoid disruptive effects in the overall light distribution, or to produce an alternative high beam distribution. This is the case when not projecting into the beam path aperture.
  • the possibility of producing a sharply limited basic light distribution or low-beam distribution remains advantageously preserved.
  • the sharp cut-off line is created with the aperture projecting into the beam path.
  • the position of the second aperture 30 is also controlled by the controller 20.
  • the second diaphragm 30 could also be used in a further embodiment to completely block the base beam path 24.
  • FIG. 6 schematically shows a preferred embodiment of the beam splitter as a front optics.
  • This beam splitter optical system differs from the beam splitter cube in that its first light entrance surface 3.1, the second light exit surface 3.3 and the third light exit surface 3.4 are convexly curved.
  • the second beam path 24 can also be used to generate a different light distribution, for example a sectionfernlichtver gutter or serving for side illumination light distribution.
  • the basic light or dipped beam is generated in this embodiment by a separate light module.
  • FIG. 7 shows a light distribution 32, as produced by a further embodiment of a headlight according to the invention.
  • This light distribution is generated by a designed for installation on the right side of the vehicle headlights.
  • the shows FIG. 7 a composite of partial light distributions 34 and 36 total light distribution.
  • Horizontal H indicates the position of the horizon when the headlamp is used as intended.
  • the vertical V intersects the horizontal H at a point which is defined by the intersection of the main emission of the headlamp or the vehicle longitudinal axis with the horizontal.
  • the more central partial light distribution 34 is generated by the first light component propagating in the matrix beam path 22, which can be influenced by the activation of the liquid crystal matrix component 4.
  • This more central partial light distribution is supplemented by the laterally partial light distribution 36, which is generated by the second light component propagating in the base beam path 24 by means of a corresponding arrangement and configuration of the first optical element 5.
  • a disadvantage of this configuration is that in the driving states in which the lateral light distribution 36 must be switched off, the light source 1 must be switched off, so that then the pixel light distribution 34 is not available in the central part.
  • this can be partially compensated by the built-in on the other side of the vehicle headlights or by a switchable aperture 30.
  • the turn-on frequency of the side areas 36 is significantly higher than the turn-on frequency of the central area 34, so that the cases where the central area 34 could still be turned on and the side area 36 must be turned off occur less frequently.
  • the embodiments described so far use a liquid crystal matrix component adapted for reflection of the incident light.
  • the invention can also be realized with liquid-crystal matrix components which are set up to transmit the incident light.
  • a polarizing beam splitter 3 as shown in the figure, is to be arranged such that its light exit side 3.2 faces the optical element 6 or the projection lens 7.
  • the interface 3.0 of the beam splitter 3 between its two prisms then runs, for example, in the subject of the figure, not as shown there from bottom right to top left, but from bottom left to top right.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
EP17154621.1A 2016-02-05 2017-02-03 Phare de véhicule automobile équipé d'un élément structurel à matrice à cristaux liquides Active EP3205928B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102016102033.8A DE102016102033A1 (de) 2016-02-05 2016-02-05 Kraftfahrzeugscheinwerfer mit einem Flüssigkristallmatrixbauteil

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EP3205928A1 true EP3205928A1 (fr) 2017-08-16
EP3205928B1 EP3205928B1 (fr) 2021-12-29

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EP3547009A1 (fr) * 2018-03-29 2019-10-02 Valeo Vision Dispositif de signalisation lumineuse avec ecran lcd
EP3572722A1 (fr) * 2018-05-24 2019-11-27 Stanley Electric Co., Ltd. Phare de véhicule, système de phare de véhicule
WO2020010936A1 (fr) * 2018-07-13 2020-01-16 华域视觉科技(上海)有限公司 Procédé de réglage de fonction de faisceau élevé auto-adaptatif basé sur un diviseur de faisceau pbs et module de lumière de véhicule intelligent associé
WO2021003769A1 (fr) * 2019-07-11 2021-01-14 华域视觉科技(上海)有限公司 Unité de phare à base de séparateur de faisceau polarisant
WO2024044424A1 (fr) * 2022-08-25 2024-02-29 Apple Inc. Feux de véhicule à fonctions multiples

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EP3547009A1 (fr) * 2018-03-29 2019-10-02 Valeo Vision Dispositif de signalisation lumineuse avec ecran lcd
FR3079599A1 (fr) * 2018-03-29 2019-10-04 Valeo Vision Dispositif de signalisation lumineuse avec ecran lcd
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WO2024044424A1 (fr) * 2022-08-25 2024-02-29 Apple Inc. Feux de véhicule à fonctions multiples

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