WO2017191031A1 - Dispositif optique et phare de véhicule - Google Patents

Dispositif optique et phare de véhicule Download PDF

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Publication number
WO2017191031A1
WO2017191031A1 PCT/EP2017/060062 EP2017060062W WO2017191031A1 WO 2017191031 A1 WO2017191031 A1 WO 2017191031A1 EP 2017060062 W EP2017060062 W EP 2017060062W WO 2017191031 A1 WO2017191031 A1 WO 2017191031A1
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WO
WIPO (PCT)
Prior art keywords
radiation
light
optical device
radiation source
conversion element
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.)
Ceased
Application number
PCT/EP2017/060062
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German (de)
English (en)
Inventor
Ricarda Schoemer
Jürgen HAGER
Oliver Hering
Stephan Schwaiger
Norbert Haas
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.)
Osram GmbH
Original Assignee
Osram GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Osram GmbH filed Critical Osram GmbH
Publication of WO2017191031A1 publication Critical patent/WO2017191031A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • F21S41/10—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
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • 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
    • F21S41/176—Light sources where the light is generated by photoluminescent material spaced from a primary light generating element
    • 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
    • F21S41/18—Combination of light sources of different types or shapes
    • 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
    • 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
    • F21Y2115/30—Semiconductor lasers

Definitions

  • the invention is based on an optical device having a laser-activated remote phosphor (LARP) technology. Furthermore, the invention relates to a vehicle headlight with such an optical device and a vehicle.
  • LRP laser-activated remote phosphor
  • the excitation radiation of the excitation beam is absorbed material from the lighting device and at least partially converted to a convergence ⁇ sion radiation (emission) radiation, whose wavelengths and thus spectral properties and / or color is determined by the conversion characteristics of the phosphor. For example, so using the con- be converted into red or green or yellow conversion radiation (conversion light illumination light) version elements blue excitation radiation (blue laser light ⁇ ).
  • Conversion light and optionally unconverted excitation light form useful light.
  • useful light for example, in case of using a blue laser diode, with an excitation radiation in the wavelength range of about 440 to 470 nm and a yellow phosphor converter, wherein ⁇ play, of cerium-doped yttrium aluminum garnet, that Ce: YAG, is achieved with decreasing Zumischungsan- part of an unconverted laser radiation to the conversion light a bluish, white-bluish, white, white ⁇ yellowish or yellow useful light.
  • Yellow light conversion typically has a relatively broad spectral seen ten "peak" at approximately 570 nm, which also holds green and red ent ⁇ .
  • IR radiation source such as a night vision function (so-called. Active IR) have.
  • IR radiation source such as a night vision function
  • suitable sensors such as thermal imaging cameras.
  • the vehicle detects IR radiation from external signal transmitters via the sensors for detecting the vehicle environment.
  • Due to the additional IR radiation source it is necessary to provide an additional optical beam path for the IR radiation in addition to the main light sources of the vehicle or next to the vehicle headlights. This leads disadvantageously to additionally required space and the use of additional optical devices. This leads to costs, in particular in vehicle production and vehicle development.
  • the IR radiation sources are arranged separately for example in a vehicle on the dashboard or in the bumper area.
  • the IR radiation is then usually radiated in a wide space angle into a semi-space lying in forward motion.
  • the light guide of a separately arranged IR light source does not match the light distribution provided by the piggeries.
  • the vehicle may be an aircraft or a waterborne vehicle or a land vehicle.
  • the land-based vehicle may be a motor vehicle or a rail vehicle or a bicycle.
  • ⁇ Trains t the use of the vehicle headlight in ei ⁇ nem truck or passenger car or motorcycle.
  • the object of the present invention is to provide an opti ⁇ cal device in the on-device ⁇ technically simple, two different Strah ⁇ development sources can be combined. In addition to processing with such an optical Einrich- a vehicle headlight and a vehicle to be created ⁇ headlight with such a vehicle.
  • the object with respect to the optical device is achieved according to the features of claim 1, with regard to the vehicle headlamp according to the features of claim 14 and with respect to the vehicle according to wish ⁇ paint of claim 15.
  • an optical device having Kursin- least one radiation source for emitting an excitation radiation ⁇ provided.
  • the radiation source with its excitation radiation radiates onto a conversion element connected downstream of the radiation source.
  • the excitation radiation is at least partially convertible into a conversion radiation.
  • at least one further, in particular is provided by the at least one first radiation source ⁇ distinctive, radiation source.
  • the further radiation source emits a light radiation, which advantageously at least partially radiates through the conversion element.
  • the conversion element is advantageously at least ⁇ completely or completely transmissive or transparent to the light radiation ⁇ formed partially or substantially.
  • the conversion element for the light radiation is optically transparent and / or non-absorbing, wherein it is conceivable that a scattering of the light radiation may occur.
  • the radiation of this further radiation source can be in the ultraviolet, in the visible and in the infrared.
  • the fluorescent element is preferably be driven ⁇ in transmission. In other words, it is the incident surface, here for coupling the excitation light of an excitation light source (laser diode) and the infrared light of a further light source, and the emission surface, in this case for the decoupling of the conversion light and for unconverted excitation light and for the transmitted infrared radiation , opposite each other. In principle, however, an operation in reflection is possible, in which the Einstrahl- and radiating surface coincide. When using a reflective conversion element, care must be taken that a broadband reflection layer is located in the conversion element on the side facing away from the radiation sources, which contains both the radiation of the excitation source and the converted radiation and the light of the additional (IR) radiation.
  • the radiation source may be used with the Anre ⁇ supply radiation for example for a lighting function or a light signal function, and the further radiation source with the light radiation at ⁇ play, for a night vision function.
  • the optical device advantageously requires no separate optical beam paths for this purpose.
  • the light guide of the separately arranged further radiation source can easily match the light distribution of the radiation source of the excitation radiation.
  • the conversion element is preferably followed by an optical element for a useful light emerging from the conversion element and for the light radiation, wherein the useful light in particular has the conversion radiation and possibly not converted excitation radiation.
  • the useful light and the light radiation can be processed inexpensively by the same optics or the same optical element.
  • the optical element is, for example, be a Reflek ⁇ tor.
  • a radiation source for the excitation radiation before ⁇ is preferably a laser or, in particular blue laser diode ⁇ provided, or that emits the excitation radiation in the form of, in particular, blue, laser light.
  • the radiation source emits a comparatively short - wave excitation radiation.
  • the optical device may have a partially transmissive converter which emits, for example, yellow conversion radiation and is transparent to IR radiation, in which case in addition to the short-wave, in particular blue, radiation, which is preferably laser radiation, also the IR Radiation passes through the converter and can be processed by the same optics.
  • the conversion element of LARP technology is preferably, in particular because of the high ther ⁇ mix loading to a ceramic converter, in particular a YAG: Ce: Gd ceramic converter or a YAG: Ce ceramic converter.
  • infrared radiation can advantageously radiate through the ceramic converter, usually with a certain absorption loss, and thus, for example, white useful light can be used for the illumination. and signal light function and IR radiation for an infrared illumination function with the same conversion element, in particular at its location, are provided.
  • the radiation source emits excitation radiation in the form of ultraviolet (UV) light. Blue light here could then additionally generated ⁇ to, for example, by a further radiation source.
  • UV ultraviolet
  • the useful light preferably has a shape adapted to a pre ⁇ see NEN purpose color.
  • other dyes or conversion elements are in principle possible, so that for example, red and / or grü ⁇ nes and / or blue light conversion can be generated.
  • the useful light may be yellow, when used in a vehicle tail light could ⁇ te the useful light be red and so-called.
  • the further radiation source for the light radiation can be controlled independently of the radiation source for the conversion radiation.
  • the further radiation source ⁇ a deviating from the radiation source for the conversion ⁇ radiation modulation frequency and / or different on / off cycles.
  • the IR radiation may have a different modulation frequency or on / off cycles than the white useful light.
  • a sensor or a thermal imaging camera is provided, with or with which the light radiation, in particular the light radiation, which is reflected at one or more objects, can be detected.
  • a reflector or a deflecting reflector which supplies the excitation radiation together with the light radiation to the converter. steering element.
  • the IR radiation can be directed together with the blue laser radiation via a deflection reflector on the phosphor element and pass through it. Subsequently, the IR radiation, as well as the useful light, from a subsequent optics, such as a headlight reflector, are thrown on the street.
  • the light radiation of the further radiation source is used for detecting properties of the conversion element and / or for emission into a far field.
  • a freedom from defects of the conversion element can be monitored.
  • conversion elements are not completely transparent.
  • a change in the absorption or transmission behavior such as, for example, an increase in the light radiation or the IR radiation that emerges from the conversion element, in a certain angular range, may be due to a change in the conversion element, such as a crack or a hole or a defect, be due.
  • an optical element in particular a dichroic component, can be provided, with which the light radiation of the further radiation source after the conversion element can be steered.
  • the light radiation is in this case steerable out of the beam path of the conversion radiation and of the possibly not converted excitation radiation.
  • the IR radiation from the beam path of visible light can be directed out.
  • the light rays to monitor the conversion element diverted ⁇ to.
  • the excitation radiation from the radiation source ⁇ and the light radiation from the further radiation source are guided together in an optical path to the conversion element.
  • the radiation sources can be arranged together, for example adjacent.
  • the light radiation of the further radiation source is coupled into the beam path of the excitation radiation of the radiation source via an optical element, in particular laterally.
  • the radiation sources can be arranged flexibly to each other.
  • a coupling of the excitation radiation into the beam path of the light radiation of the further radiation source is preferably a dichroic construction part, in particular a dichroic mirror, vorgese ⁇ hen. This can be transmissive, for example, for the excitation radiation and reflective for the light radiation.
  • the optical element is thus preferably arranged in the beam path of the excitation radiation.
  • a Digital Micromirror Device or a digital micro- rotikech is arranged in the common beam path or in the beam path after the coupling of the light radiation, which is for example part ei ⁇ nes Digital Light Processing (DLP).
  • DMD Digital Micromirror Device
  • a deflection by a dynamically oscillating MEMS mirror is also possible.
  • the conversion element is arranged on a transmissive to the light radiation substrate, in particular a sapphire substrate.
  • the sub ⁇ strat and / or the conversion element can comprise a einkoppelsei- term dichroic coating or antireflection coating that is transparent to the light radiation and the excitation radiation, and reflective of radiation conversion.
  • a DMD is arranged following the conversion element.
  • the useful light and the light ⁇ radiation are controlled by the DMD device on ⁇ technically simple manner.
  • the useful light and the light radiation is modulated via the DMD.
  • visible light and IR light can for example be on device technology easily modu ⁇ lines.
  • an optical element in particular a primary optical element, is provided following the conversion element and before the DMD.
  • the light rays and the useful light on the opti- cal element or the optics to the DMD can ⁇ directed to.
  • an optical element in particular a secondary optical ele ⁇ ment, be arranged in the wake of the DMD, which in a simple way, the light radiation and the useful light can be further processed jointly by the optical element.
  • the primary and secondary optical elements and the DMD the same optical processing of the light radiation, such as the IR radiation, and the useful light, in particular the white useful light, as the light radiation and the useful light is the same have optical path.
  • the light ⁇ radiation is in a use of the optical device in a vehicle headlamp, for example, both the low beams and the high beams or in a blendok- en beam function (glare free High Beam), see for example ECE-R 123 ADB (Adaptive Front Lighting System ), and can be used for an object recognition, in particular for an IR obj ekterkennung.
  • the light radiation or the IR radiation may additionally be pulse width modulated (PWM) (MHz, GHz).
  • PWM pulse width modulated
  • a frequency of the PWM is adjustable, in particular variably adjustable.
  • different vehicles that have an optical device can have differently modulated light radiation.
  • the setting of the frequency is stochastic, for example.
  • the adjustment of the PWM frequency preferably takes place in a frequency range between 100 kHz or a few 100 kHz up to the MHz or GHz range.
  • the light radiation of the further radiation source is polarized.
  • the light radiation or the IR radiation can be radiated polarized and detected with a dedicated sensor.
  • the polarization can also take place in the beam path after the radiation source.
  • the DMD which is the conversion element forward or nachge ⁇ switched, for example, not the entire surface of the useful light and / or the light radiation and / or the conversion radiation irradiated. It is conceivable that only a partial area or several partial areas of the DMD, in particular of the light radiation, is / are irradiated. Wei direct ⁇ is conceivable that only a portion or multiple portions of the DMD, is irradiated in particular of the lung Shafts of Light ⁇ / are not irradiated from the useful light or by the conversion light. Thus, only partial areas, especially from the light radiation, emits be ⁇ which are regular optical functions, insbeson ⁇ particular visible light, not used.
  • the converter ⁇ state are used.
  • the separation of the light radiation is in this case preferably according to the DMD (Digital Mirror Device) or a DLP (Digital Light Processing) projection optics.
  • DMD Digital Mirror Device
  • DLP Digital Light Processing
  • a part or parts of the conversion element are shaded such that a ent ⁇ speaking part or corresponding parts of the down- stream DMDs or DLPs, such as the corners, are not illuminated by the useful light, but only by the light radiation of the other radiation source.
  • ⁇ least two, in particular secondary, optical elements are provided.
  • an element for the light radiation and an element for the useful light can be used.
  • One of the optical elements or both optical elements in this case for example, a dichroic component, such as a dichroic mirror.
  • a coupling-out optics can be applied twice, once with a dichroic component for the IR radiation and once with a dichroic component for the useful light or light in the visible spectral range, so that different light distributions for two functions, such as lighting or visible light and night vision or distance detection are enabled.
  • the dichroic components are designed, for example, as a coating.
  • the optical element in particular the nachge the conversion element ⁇ switched, designed or adapted for the light radiation and the useful light.
  • the adaptation takes place here for example via the refractive index.
  • it ⁇ adaptation preferably follows so that the light ⁇ radiation has a larger footprint in comparison to the useful light, wherein the resolution of the light may be correspondingly less radiation then. hereby is a targeted defocusing of the light radiation allows.
  • a radiation or a feed of the excitation radiation and the light radiation takes place sequentially.
  • the sequential emission can ⁇ example, be set at a specific duty cycle, wherein the duty ratio of 1:10 or 1: 100 or 1: 1000th
  • the emission of the light radiation or infrared radiation output side of the optical component in this case before ⁇ preferably such that a grid or an IR grid or grid / reference points or grid reference lines into an environment, for example on a road, can be projected. This allows the illuminated objects are easily enables a distance and / or angles and / or Ortserken ⁇ planning.
  • a vehicle headlamp or a vehicle lamp which has an optical device according to one or more of the preceding aspects.
  • a vehicle headlight can be made compact and space-saving and at the same time have a function in addition to a lighting or signal light function in which the light radiation is used.
  • a vehicle is provided with at least two vehicle headlights according to one or more of the preceding aspects.
  • the light radiation of a respective further radiation source of the at least two vehicle headlights may in this case have its own PWM frequency. In this case, therefore, the differ Frequencies and can thus be differentiated metrologically.
  • the vehicle headlights are thus distinguishable from each other.
  • FIG. 1 in a longitudinal section an optical device according to a first embodiment
  • Fig. 3 is a side view of an optical device according to a second embodiment
  • FIG. 4 shows in an axis diagram a height of a transmission through a sapphire component as a function of a wavelength of a radiation radiating through the component
  • Fig. 5 is a perspective view of an optical device according to a third embodiment
  • an optical device 1 is shown with a radiation source 2 for emitting radiation
  • Anre ⁇ supply which is, for example, is a laser diode.
  • a further radiation source 4 is provided, which is an infrared laser.
  • the radiation source 2 emit ⁇ advantage an excitation radiation in the form of a blue laser beam and the radiation source 4 is a light radiation in the form of an IR radiation, which are emitted in a common beam path 6, for example an integrator rod.
  • the IR radiation and the excitation radiation are directed via a reflector 8 to a conversion element 10. This is mounted on a substrate 12, which is designed to be transparent. Subsequent to Konversi ⁇ onselement 10 optical elements 14 are provided.
  • the conversion element 10 converts the blue Laserstrah ⁇ lung partially in yellow visible light resulting together with non-converted laser light, a white useful light. Further, the conversion element 10 is out ⁇ visibly transmissive of IR radiation, thus reading the IR radiation and the useful light emitted toward the optical elements 14 from the conversion element 10th
  • the optical element 14 may be a coupling-out optical system, to which a further reflector (not shown) is arranged downstream, which then projects both the useful light and the light radiation onto the road or surroundings.
  • the optical device 1 has extremely compact two different radiation sources, which have a common beam path, although the optical device 1 uses the LARP technology.
  • the conversion element 10 is ⁇ example, be a YAG: Ce ceramic converter.
  • a YAG: Ce ceramic converter According to Figure 2, an axis diagram is shown for this, which provides on its ordinate transmission in% and on its abscissa a wavelength in ⁇ .
  • a transmission curve 16 via the Wel ⁇ lenate for the YAG: Ce ceramic converter more than 80% - ige has transmittance for infrared radiation.
  • a transmission curve 18 for a YAG crystal converter is a transmission curve 18 for a YAG crystal converter.
  • the optical device 1 is in this case part of a driving ⁇ generating headlamp 19 which is indicated schematically with a dashed line.
  • a sensor 21 is provided which may be provided in the vehicle headlight 19 or separately from the vehicle headlight 19.
  • an optical device 20 is not formed statically but dynamically.
  • an assembly 22 is provided in which the radiation source for the excitation radiation (blue laser radiation) and the further radiation source for the light radiation (IR radiation) is emitted.
  • a common beam path 24 for the excitation radiation and the light radiation is provided on the output side of the module 22 .
  • a digital micromirror device (DMD) 26 is then arranged, via which the radiations in the beam path 24 can be directed to different regions of a conversion element 28, which is connected downstream of the DMD.
  • the conversion element 28 is arranged on a substrate 30 made of sapphire.
  • a dichroic component in the form of a dichroic coating 32 is arranged on the substrate 30 on the side facing away from the conversion element 28. This is permeable to both the excitation radiation and the light radiation.
  • useful light and the light radiation are emitted from the conversion element 28 and strike an optical element 34 in the form of a lens.
  • the dichroic coating 32 is reflective for the Konversi ⁇ onsander.
  • the sapphire substrate 30 from FIG. 3 is transmissive to the light radiation in the form of the IR radiation, which is shown in FIG.
  • the transmission in% of the sapphire substrate 30 is shown as a function of a wavelength of the radiation passing through the sapphire substrate 30. It can be seen that approximately up to a wavelength of 4.5 ⁇ a transmission between 80% and 90%.
  • an optical device 36 in which a unit 38 is provided, in which the radiation source for emitting the excitation radiation, which may be a blue laser array, and the further radiation source for the light radiation, in the one or more IR lasers can be provided are arranged.
  • the excitation radiation and the light radiation in this case preferably radiate through the entire surface through a conversion element of the unit 38. ⁇ the useful light and the light radiation of the unit are then directed to a DMD 40 via a gear 38.
  • One suitable primary optical element is provided.
  • the radiations are then modulated via the DMD, ie via the tiltable DMD mirror elements, and via another suitable optical element 42 (coupling-out optics in the DMD mirror ON state) or 44 (radiation absorber in the OFF state of the DMD mirror). Mirror) processed further.
  • an optical device with at least ei ⁇ ner radiation source for emission of an excitation radiation for a conversion element.
  • the conversion element is downstream of the radiation source and at least partially converts the excitation radiation into a Kon ⁇ version radiation.
  • a further radiation source which emits light radiation, in particular infrared radiation.
  • the conversion element is designed such that the light radiation in the We ⁇ sentlichen by this can pass without being converted.
  • Radiation source 2 Radiation source 4
  • DMD Digital Micromirror Device

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

L'invention concerne un dispositif optique présentant au moins une source de rayonnement pour l'émission d'un rayonnement d'excitation pour un élément de conversion. L'élément de conversion est raccordé en aval de la source de rayonnement et convertit au moins partiellement le rayonnement d'excitation en un rayonnement de conversion. Une autre source de rayonnement émet un rayonnement lumineux, notamment un rayonnement infrarouge. L'élément de conversion est conçu de manière que le rayonnement lumineux puisse sensiblement le traverser, sans être converti.
PCT/EP2017/060062 2016-05-04 2017-04-27 Dispositif optique et phare de véhicule Ceased WO2017191031A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016207761.9A DE102016207761A1 (de) 2016-05-04 2016-05-04 Optische Einrichtung und Fahrzeugscheinwerfer
DE102016207761.9 2016-05-04

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Publication Number Publication Date
WO2017191031A1 true WO2017191031A1 (fr) 2017-11-09

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