EP3839329A1 - Automotive beleuchtungsvorrichtung - Google Patents

Automotive beleuchtungsvorrichtung Download PDF

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Publication number
EP3839329A1
EP3839329A1 EP19219036.1A EP19219036A EP3839329A1 EP 3839329 A1 EP3839329 A1 EP 3839329A1 EP 19219036 A EP19219036 A EP 19219036A EP 3839329 A1 EP3839329 A1 EP 3839329A1
Authority
EP
European Patent Office
Prior art keywords
optical fibre
light source
collimated light
lighting appliance
automotive lighting
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
EP19219036.1A
Other languages
English (en)
French (fr)
Other versions
EP3839329B1 (de
Inventor
Desiree MONTI
Maria Chiara Frijia
Fabio Leone
Michele Antonipieri
Daniele PETRIS
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 Italy SpA
Original Assignee
Marelli Automotive Lighting Italy SpA
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 Marelli Automotive Lighting Italy SpA filed Critical Marelli Automotive Lighting Italy SpA
Priority to ES19219036T priority Critical patent/ES2932855T3/es
Priority to EP19219036.1A priority patent/EP3839329B1/de
Priority to PL19219036.1T priority patent/PL3839329T3/pl
Priority to PL20203958.2T priority patent/PL3839332T3/pl
Priority to ES20203958T priority patent/ES2971326T3/es
Priority to EP20203958.2A priority patent/EP3839332B1/de
Priority to US17/125,334 priority patent/US11465551B2/en
Priority to KR1020200178687A priority patent/KR20210081272A/ko
Priority to JP2020210126A priority patent/JP2021178626A/ja
Priority to CN202011519146.9A priority patent/CN113007632A/zh
Publication of EP3839329A1 publication Critical patent/EP3839329A1/de
Application granted granted Critical
Publication of EP3839329B1 publication Critical patent/EP3839329B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • 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
    • F21S43/235—Light guides
    • F21S43/236—Light guides characterised by the shape of the light guide
    • F21S43/237—Light guides characterised by the shape of the light guide rod-shaped
    • 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
    • F21S43/235—Light guides
    • F21S43/242—Light guides characterised by the emission area
    • F21S43/245—Light guides characterised by the emission area emitting light from one or more of its major surfaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
    • F21S45/70—Prevention of harmful light leakage

Definitions

  • the present invention relates to an automotive lighting appliance.
  • the present invention preferably relates to a taillight for cars and similar vehicles, namely a lighting device designed to be incorporated in a motor vehicle with the function of signalling the position, the sudden deceleration and/or the turning direction of the vehicle, and/or having the function of lighting up the area surrounding the vehicle.
  • a lighting device designed to be incorporated in a motor vehicle with the function of signalling the position, the sudden deceleration and/or the turning direction of the vehicle, and/or having the function of lighting up the area surrounding the vehicle.
  • taillights for cars and the like usually comprise: a rigid and substantially basin-shaped rear body which is structured so as to be stably recessed in a compartment specially realized in the rear part of the bodywork of the vehicle; a front half-shell which is arranged to close the mouth of the rear body so as to surface outside of the vehicle bodywork and is generally provided with a number of transparent or semi-transparent sectors, usually having different colour to one another; and a series of lighting assemblies that are arranged inside the body, each immediately beneath a respective transparent or semi-transparent sector of the front half-shell, so as to be able to selectively backlight the overlying transparent or semi-transparent sector of the front half-shell.
  • each transparent or semi-transparent sector of the front half-shell is furthermore uniquely associated with a specific light signal designed to signal the position of the vehicle, the sudden deceleration of the vehicle or the turning direction of the vehicle while moving, and each lighting assembly is specifically structured so as to be able to emit, on command, a light beam that, once come out of the lighting appliance through the corresponding transparent or semi-transparent sector of the half-shell, meets the homologation specifications (colour and light distribution) requested for this light signal.
  • the lighting assemblies that must backlight the single transparent or semi-transparent ribbon-like sectors of the front half-shell usually comprise: a light-guide bar which is made of polymethyl methacrylate (PMMA) or other photoconductive material and extends within the rear body skimmed over the ribbon-like sector to be backlit, substantially for the whole length of the same sector; and one or more high-power LEDs (acronym for Light Emitting Diode) which are fixed on a small printed circuit which, in turn, is arranged inside the rear body, close to at least one of the two ends of the light-guide bar, so that the LED(s) are in abutment against the end of the light-guide bar and can direct the light directly inside the body of the light-guide bar.
  • PMMA polymethyl methacrylate
  • the light then travels within the body of the light-guide bar due to total internal reflection, and gradually comes out from the lateral side of the light-guide bar that directly faces the front half-shell, so as to be able to backlight the superjacent transparent or semi-transparent sector of the half-shell.
  • the light-guide bar in fact, is notoriously a hard and rigid, but relatively fragile monolithic body, thus it must be inserted inside the rear body with due caution. Moreover, the two ends of the light-guide bar must be perfectly aligned with the LEDs to avoid light loss, and this contributes to lengthening the light assembly time.
  • the high-power LED or LEDs have been replaced by a small laser emitter which is mechanically coupled to one of the two ends of the radial emission optical fibre by means of a fixing ferrule that holds in place the end of the optical fibre in front of the laser emitter.
  • a broken and free to move optical fibre could direct the laser light outside the lighting appliance, towards the eye of a person standing near the vehicle, and the laser beam emitted by the light laser emitter has such an intensity that can irreparably damage the human eye.
  • Aim of the present invention is to increase the active safety of the new lighting assemblies using optical fibres to backlight the front half-shell of the lighting appliance.
  • an automotive lighting appliance as defined in Claim 1 and preferably, though not necessarily, in any of the claims dependent on it.
  • the reference number 1 denotes as a whole an automotive lighting appliance, i.e. a lighting device particularly suitable to be arranged on the front or rear part of the bodywork of a motor vehicle, with the function of emitting light signals to signal the position of the vehicle and/or the sudden deceleration of the vehicle and/or the turning direction of the vehicle while moving.
  • a lighting appliance particularly suitable to be arranged on the front or rear part of the bodywork of a motor vehicle, with the function of emitting light signals to signal the position of the vehicle and/or the sudden deceleration of the vehicle and/or the turning direction of the vehicle while moving.
  • the automotive lighting appliance 1 is designed to be fixed on the front or rear part of the bodywork of an car, van, truck, motorcycle or other similar motor vehicle to perform the function of a headlight or taillight.
  • the automotive lighting appliance 1 is preferably structured to be stably recessed into the rear part of the bodywork of a car or any other similar motor vehicle.
  • the automotive lighting appliance 1 is a taillight for car and the like.
  • the automotive lighting appliance 1 could also be structured as to be simply cantilever fixed to the rear part of the vehicle bodywork (not shown).
  • the automotive lighting appliance 1 firstly comprises: a rear body 2, substantially rigid and preferably made of plastic material, which is substantially basin-shaped and is preferably structured so as to be at least partially recessed into a seat specially realized in the rear part of the vehicle bodywork (not shown); and a front half-shell 3, substantially rigid and preferably made of plastic material, traditionally called a lens, which is arranged to close the mouth of the rear body 2, preferably so as to be able to surface outside of the vehicle bodywork.
  • the rear body 2 could also be structured so as to be simply fixed cantilever on the rear part of the vehicle bodywork (not shown).
  • the automotive lighting appliance 1 additionally comprises one or more electrically-powered lighting assemblies that emit light on command and are arranged inside the rear body 2 each beneath a respective transparent or semi-transparent sector of front half-shell 3, so as to selectively backlight the superjacent transparent or semi-transparent sector of front half-shell 3.
  • the rear body 2 is preferably made of an opaque plastic material, preferably via an injection moulding process.
  • the front half-shell 3 is preferably made of a transparent or semi-transparent plastic material, such as for example polycarbonate (PC) or polymethyl methacrylate (PMMA), also in this case preferably via an injection moulding process.
  • a transparent or semi-transparent plastic material such as for example polycarbonate (PC) or polymethyl methacrylate (PMMA), also in this case preferably via an injection moulding process.
  • the automotive lighting appliance 1 is preferably provided with a plurality of electrically-powered lighting assemblies, each of which is arranged inside the rear body 2 in a position such as to be able to backlight only the superjacent and corresponding transparent or semi-transparent sector of front half-shell 3, preferably separately and independently from the other lighting assemblies of the lighting appliance.
  • At least one of the lighting assemblies moreover comprises: a laser light source 5, which is placed inside the rear body 2 and is capable of emitting, on command, a laser beam r (i.e. an extremely concentrated and collimated, coherent and monochromatic light beam) of a predetermined intensity; and an optical fibre 6 having a predetermined length and preferably a flexible filiform structure, which extends inside the rear body 2 and has one of its two ends, hereinafter called the proximal end, facing and optically coupled to the laser light source 5 so that the laser beam r emitted by the laser light source 5 can freely enter the optical fibre 6 and travel inside it.
  • a laser light source 5 which is placed inside the rear body 2 and is capable of emitting, on command, a laser beam r (i.e. an extremely concentrated and collimated, coherent and monochromatic light beam) of a predetermined intensity
  • an optical fibre 6 having a predetermined length and preferably a flexible filiform structure, which extends inside the rear body 2 and has one of its two ends
  • the laser light source 5 is arranged inside the rear body 2 facing the proximal end 6a of optical fibre 6, and is adapted to emit, on command and towards the same proximal end 6a, a laser beam r that enters and travels inside the optical fibre 6.
  • the lighting assembly 4 additionally includes an electronic control unit 7 which is adapted to activate and deactivate the laser light source 5 based on an external control signal, and is preferably located inside the rear body 2, optionally close to the bottom of the same rear body 2.
  • the proximal end 6a of optical fibre 6 is spaced in front of the emitter of laser light source 5, at a distance d from the emitter of laser light source 5 lower than or equal to 0,5 mm (millimetres) and preferably ranging between 0,1 and 0,3 mm (millimetres).
  • the optical fibre 6 has an external diameter preferably lower than 5 mm (millimetres) and more conveniently lower than 1,2 mm (millimetres), and is specifically structured to channel the laser light towards its distal end 6b opposite the proximal end 6a, while simultaneously and progressively spreading out of the optical fibre 5, substantially in a radial direction, a given percentage of the laser light as the light travel within the optical fibre 6.
  • the optical fibre 6 is a radial emission optical fibre, and it won't be further described since it is a component already known and easily available on the market.
  • the optical fibre 6 is furthermore sustained/ supported by a rigid supporting structure that is integral with rear body 2 and is preferably made of plastic material.
  • the front half-shell 3 is preferably provided with at least one transparent or semi-transparent sector 3a having a narrow and elongated shape (two in the example shown), i.e. substantially ribbon-like.
  • the lighting assembly 4 adapted to selectively backlight the/each ribbon-like transparent or semi-transparent sector 3a of front half-shell 3, preferably comprises: a radial emission optical fibre 6 that extends inside the rear body 2 so that at least a portion/segment of the optical fibre is locally substantially skimmed over the ribbon-like sector 3a to be backlit, preferably substantially along the whole length of the same ribbon-like sector 3a; and an electrically -powered laser light source 5 which is able to emit, on command, a laser beam r with a given intensity, and which is arranged inside the rear body 2 directly facing and aligned with the proximal end 6a of optical fibre 6, so that the laser beam coming out of emitter 5 can freely enter the optical fibre 6 through the same proximal end 6a.
  • the optical fibre 6 is furthermore fixed on the front side of a rigid and preferably made of opaque plastic material, support plate 8 that is arranged inside the rear body 2 with its front sidewall directly facing the front half-shell 3, or rather the corresponding ribbon-like sector 3a preferably substantially for the whole lenght of the ribbon-like sector 3a, and with its rear sidewall facing the bottom of rear body 2.
  • the lighting assembly 4 furthermore comprises mechanical centring and fixing members 9 which are adapted to rigidly connect the proximal end 6a of optical fibre 6 to the laser light source 5, or rather to the emitter of the laser light source 5, and are structured to keep the proximal end 6a of optical fibre 6 centred and immobile in front of the emitter of laser light source 5.
  • centring and fixing members 9 are preferably structured so as to keep the proximal end 6a of optical fibre 6 immobile in front of the emitter of laser light source 5, at a distance d from the emitter lower than 0,5 mm (millimetres) and preferably ranging between 0,1 and 0,3 mm (millimetres).
  • the centring and fixing members 9 are preferably structured so as to stably keep the proximal end 6a of optical fibre 6 at a distance d from the emitter of laser light source 5 ranging between 0,2 and 0,25 mm (millimetres).
  • the lighting assembly 4 also comprises: at least one proximal photometric sensor 10 which is located next to the emitter of laser light source 5, so as to capture/detect the laser light that is reflected/scattered outside the optical fibre 6 when the laser beam enters into the proximal end 6a of optical fibre 6; and at least one distal photometric sensor 11 which is arranged in front of the distal end 6b of optical fibre 6 and is capable of capturing/detecting the laser light coming out of the distal end 6b of optical fibre 6.
  • the electronic control unit 7 is adapted to drive the laser light source 5 based also on the signals coming from the proximal photometric sensor 10 and from the distal photometric sensor 11.
  • the electronic control unit 7 is preferably programmed/configured so as to autonomously deactivate the laser light source 5 when the intensity of the laser light detected by any one of proximal photometric sensor 10 and distal photometric sensor 11 deviates from a corresponding predetermined reference value.
  • this reference value is moreover based on the power/intensity of the laser beam r emitted by the laser light source 5.
  • the electronic control unit 7 is programmed/configured so as to activate and deactivate the laser light source 5 based on the external control signal.
  • the electronic control unit 7 is preferably programmed/configured so as to automatically deactivate the laser light source 5 when the intensity of the laser light detected by the proximal photometric sensor 10 deviates from a first predetermined reference value and/or when the intensity of the laser light detected by the distal photometric sensor 11 deviates from a second predetermined reference value.
  • the electronic control unit 7 is preferably programmed/configured so as to automatically deactivate the laser light source 5 when the intensity of the laser light detected by the proximal photometric sensor 10 moves out of a predetermined first tolerance range which is arranged astride of said first reference value and is preferably also substantially centred to said first reference value.
  • the electronic control unit 7 is preferably programmed/configured so as to automatically deactivate the laser light source 5 when the intensity of the laser light detected by the distal photometric sensor 11 moves out of a predetermined second tolerance range which is arranged astride of said second reference value and is preferably also substantially centred to said second reference value.
  • the electronic control unit 7 is preferably programmed/configured so as to automatically deactivate the laser light source 5 when intensity of the laser light detected by the proximal photometric sensor 10 deviates/varies at least by 3% with respect to said first reference value, and/or when intensity of the laser light detected by the distal photometric sensor 11 deviates/varies by at least 3% with respect to said second reference value.
  • the lighting assembly 4 is preferably provided with at least two proximal photometric sensors 10 that are arranged next to the emitter of laser light source 5, on opposite sides of the emitter and preferably in a mirror position with respect to the latter.
  • the distance between the emitter of laser light source 5 and the two proximal photometric sensors 10 is preferably lower than or equal to 10 mm (millimetres), and more conveniently ranges between 1 and 8 mm (millimetres).
  • the proximal photometric sensor or sensors 10 and the laser light source 5, or rather the emitter of the laser light source 5, are furthermore arranged/fixed one next to the other, on a small printed circuit board 13 which, in turn, is arranged/fixed inside the rear body 2 of the lighting appliance, close to the proximal end 6a of optical fibre 6.
  • the laser light source 5, moreover, preferably includes a known type LASER diode.
  • the laser light source 5 preferably includes a known type of RGB LASER diode, which is capable of emitting a laser beam with power and/or colour variable on command.
  • the first and the second reference values preferably depend on the colour of the laser beam r emitted by the laser light source 5.
  • the photometric sensors 10 and/or 11 are preferably photodiodes.
  • the mechanical centring and fixing members 9 preferably comprise: a rigid supporting socket 14 preferably made of plastic or metal material, which is firmly fixed on the printed circuit board 13 so as to extend like a bridge above the laser light source 5, or rather above the emitter of laser light source 5, and the proximal photometric sensor or sensors 10; and a ferrule connector 15 preferably made of metal material, which is adapted to be fitted and securely locked on the proximal end 6a of optical fibre 6, locally coaxial to the optical fibre 6.
  • the ferrule connector 15 is adapted to be screwed onto a threaded portion of supporting socket 14 locally aligned to the laser light source 5, or rather to the emitter of laser light source 5, so as to arrange the proximal end 6a of optical fibre 6 spaced above the emitter of laser light source 5, locally coaxial to and at the distance d from the emitter of laser light source 5.
  • the operation of lighting assembly 4 due to the air/glass interface, when the laser beam r enters into the optical fibre 6 a very small amount of optical energy cannot enter the optical fibre 6 and is reflected back (Fresnel reflections) towards the laser light source 5 and towards the proximal photometric sensor(s) 10.
  • the laser light reflected towards the laser light source 5 is detected by the proximal photometric sensors (10).
  • the intensity of the laser light reflected back towards the laser light source 5 is minimal, and remains around a predetermined value as long as the optical fibre 6 is perfectly aligned and coupled to the emitter of the laser light source 5. Any variation in the position of the proximal end 6a of optical fibre 6 with respect to the ideal position causes a variation in the intensity of the laser light detected by the or by any one of the proximal photometric sensors 10.
  • any variation in the light energy detected by the proximal photometric sensor or sensors 10 is therefore indicative of the breaking of optical fibre 6, of the incorrect positioning of optical fibre 6 with respect to the laser light source 5 possibly due to the supervened breaking of the lighting appliance, or of the incorrect assembly/optical coupling of the optical fibre 6 to the laser light source 5.
  • the distal photometric sensor 11 detects the intensity of the laser light coming out of the distal end 6b of optical fibre 6. Clearly, if the optical fibre 6 and the laser light source 5 have been correctly dimensioned, the optical energy that reaches the distal end 6b of optical fibre and is scattered outside of the optical fibre is minimal, but nonetheless exists.
  • any variation of the light energy detected by the distal photometric sensor 11 is therefore indicative of the breaking of optical fibre 6 or of the incorrect positioning of optical fibre 6 on the corresponding supporting structure, or rather on the sidewall of support plate 8, maybe due to the breaking of the lighting appliance.
  • the electronic control unit 7 By automatically deactivating the laser light source 5 when the intensity of the laser light detected by the proximal photometric sensor 10 deviates from the first reference value and/or when the intensity of the laser light detected by the distal photometric sensor 1 deviates from the second reference value, the electronic control unit 7 prevents the laser beam r coming out of the laser light source 5 from causing damage to property and/or people as a consequence of an the unexpected breaking or malfunction of the automotive lighting appliance 1.
  • the combined use of the photometric sensors 10 and 11 allows understanding, at the end of or along the production line of the lighting appliance, whether the assembly of the automotive lighting appliance 1, or better of the lighting assembly 4, has been carried out correctly.
  • the combined use of the photometric sensors 10 and 11 allows determining, albeit approximately, the position of a possible breaking/failure/anomaly of the lighting assembly 4.
  • the laser light source 5 of lighting assembly 4 may be replaced by a high-power LED and by an optical collimator which is arranged above the LED and is designed to collimate the light rays emitted by the LED in a collimated light beam (i.e. a set of light rays collimated in the same direction) directed towards the proximal end 6a of the radial emission optical fibre 5.
  • a collimated light beam i.e. a set of light rays collimated in the same direction
  • the laser light source 5 is replaced by a collimated LED light source.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
EP19219036.1A 2019-12-20 2019-12-20 Automotive beleuchtungsvorrichtung Active EP3839329B1 (de)

Priority Applications (10)

Application Number Priority Date Filing Date Title
ES19219036T ES2932855T3 (es) 2019-12-20 2019-12-20 Dispositivo de iluminación de automóviles
EP19219036.1A EP3839329B1 (de) 2019-12-20 2019-12-20 Automotive beleuchtungsvorrichtung
PL19219036.1T PL3839329T3 (pl) 2019-12-20 2019-12-20 Samochodowe urządzenie oświetleniowe
ES20203958T ES2971326T3 (es) 2019-12-20 2020-10-26 Aparato de iluminación automotriz y método de control relativo
EP20203958.2A EP3839332B1 (de) 2019-12-20 2020-10-26 Beleuchtungsvorrichtung für kraftfahrzeuge und zugehöriges steuerungsverfahren
PL20203958.2T PL3839332T3 (pl) 2019-12-20 2020-10-26 Samochodowe urządzenie świecące i zależny sposób sterowania
US17/125,334 US11465551B2 (en) 2019-12-20 2020-12-17 Automotive lighting apparatus and relative control method
KR1020200178687A KR20210081272A (ko) 2019-12-20 2020-12-18 차량 조명 장치 및 관련 제어 방법
JP2020210126A JP2021178626A (ja) 2019-12-20 2020-12-18 自動車用照明器具及び関連する制御方法
CN202011519146.9A CN113007632A (zh) 2019-12-20 2020-12-21 汽车照明装置及相关控制方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19219036.1A EP3839329B1 (de) 2019-12-20 2019-12-20 Automotive beleuchtungsvorrichtung

Publications (2)

Publication Number Publication Date
EP3839329A1 true EP3839329A1 (de) 2021-06-23
EP3839329B1 EP3839329B1 (de) 2022-10-19

Family

ID=69593521

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19219036.1A Active EP3839329B1 (de) 2019-12-20 2019-12-20 Automotive beleuchtungsvorrichtung

Country Status (3)

Country Link
EP (1) EP3839329B1 (de)
ES (1) ES2932855T3 (de)
PL (1) PL3839329T3 (de)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011015161A1 (de) * 2011-03-26 2012-05-24 Schott Ag LED-Beleuchtungseinrichtung
DE102015205353A1 (de) * 2015-03-24 2016-09-29 Osram Gmbh Beleuchtungseinrichtung
DE102016210363A1 (de) * 2016-06-10 2017-12-14 Audi Ag Beleuchtungseinrichtung für ein Kraftfahrzeug, Kraftfahrzeug mit Beleuchtungseinrichtung und Verfahren zum Betreiben einer Beleuchtungseinrichtung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011015161A1 (de) * 2011-03-26 2012-05-24 Schott Ag LED-Beleuchtungseinrichtung
DE102015205353A1 (de) * 2015-03-24 2016-09-29 Osram Gmbh Beleuchtungseinrichtung
DE102016210363A1 (de) * 2016-06-10 2017-12-14 Audi Ag Beleuchtungseinrichtung für ein Kraftfahrzeug, Kraftfahrzeug mit Beleuchtungseinrichtung und Verfahren zum Betreiben einer Beleuchtungseinrichtung

Also Published As

Publication number Publication date
PL3839329T3 (pl) 2023-03-20
EP3839329B1 (de) 2022-10-19
ES2932855T3 (es) 2023-01-27

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