EP2809985B1 - Vorrichtung zur vereinheitlichung des aussehens von motorfahrzeug-signalleuchten - Google Patents

Vorrichtung zur vereinheitlichung des aussehens von motorfahrzeug-signalleuchten Download PDF

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Publication number
EP2809985B1
EP2809985B1 EP13705733.7A EP13705733A EP2809985B1 EP 2809985 B1 EP2809985 B1 EP 2809985B1 EP 13705733 A EP13705733 A EP 13705733A EP 2809985 B1 EP2809985 B1 EP 2809985B1
Authority
EP
European Patent Office
Prior art keywords
light
guide
screen
translucent
light guide
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.)
Revoked
Application number
EP13705733.7A
Other languages
English (en)
French (fr)
Other versions
EP2809985A1 (de
Inventor
Alain Buisson
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 France SAS
Original Assignee
Marelli Automotive Lighting France SAS
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=47748577&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2809985(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Marelli Automotive Lighting France SAS filed Critical Marelli Automotive Lighting France SAS
Priority to PL13705733T priority Critical patent/PL2809985T3/pl
Publication of EP2809985A1 publication Critical patent/EP2809985A1/de
Application granted granted Critical
Publication of EP2809985B1 publication Critical patent/EP2809985B1/de
Revoked 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
    • F21S43/10—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
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
    • F21K9/61—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction using light guides
    • 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
    • F21S43/20—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
    • 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 the field of lighting and signaling of vehicles, in particular motor vehicles. It relates more particularly to a device for vehicle signaling light comprising a guide arranged to be able to guide and diffuse the light emitted by at least one LED, and in front of this an element made of transparent material intended, in combination with said guide, to homogenize and / or adapt the light emitted by the device.
  • Transparent auxiliary screens are already known in the prior art in which the light emitted by an auxiliary light source can be propagated, these screens being intended to equip a light, in particular a rear light, for a motor vehicle. Local discontinuities provided in the screen material constitute centers of light scattering outside these screens (see French patent publication No. 2,868,506 ).
  • an optical or stylistic component for lighting or signaling motor vehicles is made of transparent material, inside which sources of light scattering are located only at predetermined locations for diffusing the light emitted by a source associated with the lighting or signaling device concerned.
  • This component can constitute the lens of a motor vehicle headlamp, or an insert placed in such a headlamp.
  • German patent application DE 103 11 317 is described a lighting device for a vehicle comprising a light guide comprising diffusion structures located essentially at the focus of reflective surfaces which thus allow a uniform illumination to diffuse.
  • the subject of the present invention is a device for a motor vehicle lighting and / or signaling light as defined in claim 1 and a motor vehicle light as defined in claim 12.
  • the present invention thus relates to a device for the lighting and / or signaling light of a motor vehicle, incorporating a guide and in which one combines with the above-mentioned guide, and whatever the type of guide, a transparent element or screen or translucent, essentially made of an opaline type material, provided with an internal and / or external embossing and disposed between said guide and the visible face of the lamp or of the lamp assembly concerned, so as to provide a light function of homogeneous color.
  • the front piece forming a translucent screen provided with a graining thus provided is arranged downstream of the light guide associated with at least one LED, in the direction of diffusion of the light emitted by the LED or LEDs. It has the effect and / or the purpose of standardizing the light rendering of said curtain and thus eliminating the distribution irregularities, therefore the appearance that the lightings emanating from such light guides can have.
  • the subject of the invention is therefore a motor vehicle light, of the type comprising a guide for diffusing the light emitted by at least one LED capable of illuminating perpendicularly to at least one of the lateral faces of said guide, while the latter is supplemented by an element of translucent material, disposed frontally between the face of the guide facing the front face of the projector concerned and the outside, substantially perpendicular to the main direction of the light beam.
  • This element is thus intended to cover at least partially the face determining the lighting of said light guides for LED lighting of motor vehicles.
  • the above-mentioned translucent material element is an opaline or at least predominantly opaline part, or even a part having substantially the optical characteristics of opaline or of an equivalent translucent material.
  • This part can constitute an additional element of a signaling device for vehicles.
  • it may constitute the window of the optical unit comprising the other functional elements of such a signaling light for vehicles.
  • said graining can be provided on the external face and / or on the internal face of such an element, or even inside the latter. It is preferred to impart said embossing to the internal face of the aforementioned element when it is integrated in a suitable housing.
  • said element thus grained is disposed at the front of the above-mentioned guide, with a space between them.
  • the material made opaline is in practice PMMA or poly (methyl methacrylate) to which are added, for example by injection, materials chosen from microbeads of material with an opalescent effect and a dispersible material, in particular for the injection and distribution of 'a gas, in particular CO 2 , to give a random character to the opalescence produced.
  • the opaline material can be left whitish or be colored, in particular to appear amber or super-light blue in color, by techniques known to those skilled in the art. It can thus make it possible to provide another effect in the on state in which the color of the light emitted by the LEDs can thus be different from the color in the off state.
  • the piece of opaline material has dimensions allowing it to conform to the dimensions of the aforementioned light guides.
  • the light guides used can have a length (straight or curvilinear) of approximately 200-300 mm when they are lit by an LED at one of their ends, and even up to approximately 600 mm s' they have an LED at each of their two ends.
  • the aforementioned piece of opaline material is fixed at a distance from the light guide as described above. It is placed, in front of this guide in the direction of the path of the scattered light, at a distance which is in practice between 5 and 10 mm approximately, more preferably between 6 and 9 mm, and more advantageously between 7 and 8 mm about.
  • the attachment of this element near the ends of the above guide or to any other support that may be available nearby is carried out without difficulty by conventional means, within the reach of the skilled person.
  • the guide of the lighting device according to the invention becomes comparable to a filament of a virtual light source.
  • the aforementioned translucent element cooperates with the other elements of the lighting device and provides an overall effect which can be adapted to suit in particular by the choice of the geometry, the distance with the guide and / or the translucency characteristics of said element.
  • the device according to the invention is mainly intended to equip lighting systems forming lanterns, brake lights, raised brake lights, flashing lights and / or possibly daytime running lights for motor vehicles.
  • the translucent element thus designed is in practice of crystal color or red or other color. It can comprise two parts, in total or preferably partial overlap with one another, and one of which is maintained in crystal color, while the other is in red or other color.
  • the motor vehicle rear light device 1 thus combines with a guide 3, advantageously incorporated in a structure or a housing 4 and capable of being lit by a light source 2, a translucent screen 5 provided with a graining 6.
  • An external, transparent screen can also be provided by the cover of the box containing the lighting fire device.
  • the invention thus preferably relates to a motor vehicle light, of the type comprising a guide 3 for the diffusion of the light emitted by at least one LED 2 illuminating perpendicularly to at least one of the side faces of said guide 3, further comprising a screen 5 made of translucent material provided with a graining 6, disposed frontally between the face of the guide 3 turned towards the front face of the projector concerned and the outside, substantially perpendicular to the main direction of the light beam.
  • the device advantageously has one or more LEDs 2 for a light source, the light beam of which is channeled by a guide 3 of the type mentioned above, and dispersed by this guide (provided with appropriate cavities / asperities, conventionally constituted by prismatic entities, designed or integrated by means and according to arrangements known to those skilled in the art) in a curtain 4.
  • the device 1 according to the invention has been found to provide as main positive effect the homogenization of the lighting provided by these elements, also well to the right of this set of elements only under an offset viewing angle.
  • the intensity of the light thus better diffused and better distributed was maintained at a satisfactory level taking into account the standards in force.
  • the profile of an average cross section of said piece forming a translucent curtain can be arbitrary; it is preferably similar or equivalent to one of those illustrated by way of examples in the Fig. 4 (see 4A, 4B and 4C). It can thus, for example, and without this being limiting, be a profile in a bowl with rounded internal bottom facing the bead forming light guide 3, or a U-shaped profile whose width can vary between 10 and 25 mm approximately, or a profile in a bowl, the rounded bottom of which is surmounted by a cover plate 7 carrying the graining elements 6 capable of giving it opalescence.
  • the guide 3 it has on its rear part conventional prisms 8.
  • the device according to the invention comprises a part as described above, having an elongated shape having a length of approximately 210-310 or 610 mm, and a width of approximately 10-20 mm , preferably about 15 mm.
  • Such a U-shaped piece of approximately 15-25 mm in width constitutes an appropriate means for imparting style or signature effects to the lighting device.
  • the opalescent part covering the light guides is preferably made opalescent on its external faces, in such a way that the incident rays are deflected by the elements. conferring opalescence and are thus diffused according to a wider and more homogeneous spatial distribution.

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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)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
  • Planar Illumination Modules (AREA)

Claims (12)

  1. Vorrichtung für eine Leuchte zum Beleuchten und/oder eine Signalleuchte eines Motorfahrzeugs, die einen Lichtleiter (3) und, zwischen dem Lichtleiter und einer sichtbaren Seite der Leuchte, einen Schirm (5) aufweist, wobei der Schirm durchscheinend ist und auf wenigstens einer seiner Hauptseiten, die dazu ausgelegt sind, von dem durch den Lichtleiter abgegebenen Licht durchdrungen zu werden, mit einer Körnung (6) versehen ist, dadurch gekennzeichnet, daß der Schirm (5), in der Richtung des Wegs des abgegebenen Lichts gesehen, vor dem Lichtleiter (3) in einem Abstand angeordnet ist, der zwischen 5 mm und 10 mm beträgt, um eine Beleuchtungsfunktion mit gleichmäßiger Farbe zu liefern.
  2. Vorrichtung gemäß Anspruch 1, bei der der durchscheinende Schirm (5) auf seinen beiden Hauptseiten, die dazu ausgelegt sind, von dem durch eine oder mehrere Leuchtdioden (2) abgegebenen Licht durchdrungen zu werden, mit einer Körnung (6) versehen ist.
  3. Vorrichtung gemäß einem der Ansprüche 1 oder 2, bei der der Schirm aus durchscheinendem Material (5) ein Teil aus Milchglas oder hauptsächlich aus Milchglas ist oder ein Teil ist, das im Wesentlichen die optischen Eigenschaften von Milchglas oder einem gleichartigen durchscheinenden Material hat.
  4. Vorrichtung gemäß einem der Ansprüche 1 bis 3, bei der die Körnung (6) des durchscheinenden Schirms (5) innerhalb und/oder außerhalb des Materials des durchscheinenden Schirms ist.
  5. Vorrichtung gemäß einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der durchscheinende Schirm (5) aus Polymethylmethacrylat besteht, dem Materialien zugefügt sind, die unter Mikrokugeln aus Material mit eintrübender Wirkung oder einem dispergierbaren Material insbesondere zum Einspritzen und Verteilen eines Gases, insbesondere von Kohlendioxid, ausgewählt sind, um der erzeugten Trübung einen Zufallscharakter zu verleihen.
  6. Vorrichtung gemäß einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß das durchscheinende Material (5) vom Milchglastyp weißlich belassen ist.
  7. Vorrichtung gemäß einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß das durchscheinende Material (5) gefärbt ist, insbesondere um in bersteinfarbener oder superhellblauer Farbe zu erscheinen, und ermöglicht, im eingeschalteten Zustand einen anderen Effekt zu erzielen, in dem die Farbe des von den Leuchtdioden ausgestrahlten Lichte somit eine andere sein kann als die Farbe im ausgeschalteten Zustand.
  8. Vorrichtung gemäß einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß der durchscheinende Schirm in einem Abstand zwischen 7 mm und 8 mm vom Lichtleiter (3) angeordnet ist.
  9. Vorrichtung gemäß einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß der durchscheinende Schirm in einem Abstand zwischen 7 mm und 9 mm vom Lichtleiter angeordnet ist.
  10. Vorrichtung gemäß einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß der durchscheinende Schirm (5) eine beckenartige Kontur mit einem abgerundeten inneren Boden, der zur den Lichtleiter (3) bildenden Wulst hin gerichtet ist, oder eine beckenartige Kontur, deren abgerundeter Boden mit einer Deckplatte (7) bedeckt ist, die die Kömungselemente (6) trägt, die ihr eine Trübung verleihen, oder auch ein U-Profil mit einer Breite, die zwischen 10 mm und 25 mm variieren kann, aufweist.
  11. Vorrichtung gemäß einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, daß sie mit Beleuchtungssystemen ausgestattet ist, die ein Standlicht, ein Bremslicht, ein hochgesetztes Bremslicht, einen Blinker und/oder gegebenenfalls ein vorderes Tagfahrlicht von Motorfahrzeugen bilden.
  12. Leuchte für ein Motorfahrzeug, die vom Typ mit Lichtleiter (3) zur Abstrahlung des von wenigstens einer Leuchtdiode (2) abgegebenen Lichts, das senkrecht zu wenigstens einer der seitlichen Seiten des Leiters (3) leuchtet, wobei die Leuchte außerdem einen Schirm (5) aus durchscheinendem Material aufweist, der auf wenigstens einer seiner Hauptseiten, die dazu ausgelegt sind, von dem durch den Lichtleiter abgegebenen Licht durchdrungen zu werden, mit einer Körnung (6) versehen ist, wobei der Schirm frontal zwischen der Seite des Lichtleiters (3), die zur Vorderseite der betreffenden Leuchte hin gerichtet ist, und der Außenseite im Wesentlichen senkrecht zur Hauptrichtung des Lichtstrahls angeordnet ist, dadurch gekennzeichnet, daß der Schirm (5), in der Richtung des Wegs des abgegebenen Lichts gesehen, vor dem Lichtleiter (3) in einem Abstand angeordnet ist, der zwischen 5 mm und 10 mm beträgt, um eine Beleuchtungsfunktion mit gleichmäßiger Farbe zu liefern.
EP13705733.7A 2012-01-30 2013-01-30 Vorrichtung zur vereinheitlichung des aussehens von motorfahrzeug-signalleuchten Revoked EP2809985B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL13705733T PL2809985T3 (pl) 2012-01-30 2013-01-30 Urządzenie do nadawania jednolitego wyglądu lampie sygnalizacyjnej pojazdu samochodowego

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1200270A FR2986305B1 (fr) 2012-01-30 2012-01-30 Dispositif pour rendre homogene l'aspect d'un feu de signalisation de vehicule automobile
PCT/EP2013/051737 WO2013113726A1 (fr) 2012-01-30 2013-01-30 Dispositif pour rendre homogene l'aspect d'un feu de signalisation de vehicule automobile

Publications (2)

Publication Number Publication Date
EP2809985A1 EP2809985A1 (de) 2014-12-10
EP2809985B1 true EP2809985B1 (de) 2020-07-15

Family

ID=47748577

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13705733.7A Revoked EP2809985B1 (de) 2012-01-30 2013-01-30 Vorrichtung zur vereinheitlichung des aussehens von motorfahrzeug-signalleuchten

Country Status (8)

Country Link
US (1) US20140376247A1 (de)
EP (1) EP2809985B1 (de)
JP (1) JP2015505637A (de)
CN (1) CN104379990A (de)
ES (1) ES2823763T3 (de)
FR (1) FR2986305B1 (de)
PL (1) PL2809985T3 (de)
WO (1) WO2013113726A1 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3022608B1 (fr) * 2014-06-19 2018-07-20 Psa Automobiles Sa. Dispositif d'eclairage et/ou de signalisation generant une lumiere homogene sur un ecran
FR3043755B1 (fr) * 2015-11-16 2017-12-01 Peugeot Citroen Automobiles Sa Dispositif d’eclairage a guide(s) de lumiere a structure(s) surmoulee(s) opaline(s)
FR3046655B1 (fr) * 2016-01-08 2018-02-02 Psa Automobiles Sa. Bloc optique d’eclairage ou de signalisation pour vehicule automobile comportant un masque opalin
FR3055398A1 (fr) * 2016-08-29 2018-03-02 Peugeot Citroen Automobiles Sa Systeme optique comprenant un dispositif de diffusion d'une source lumineuse
GB2554418A (en) * 2016-09-26 2018-04-04 Bee Lighting Ltd Lighting unit
FR3058370B1 (fr) * 2016-11-07 2018-12-07 Peugeot Citroen Automobiles Sa Feu de signalisation de vehicule automobile

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EP1775511A1 (de) 2005-10-11 2007-04-18 Valeo Vision Kfz-Signal- und/oder Beleuchtungseinrichtung mit einem Lichtleiter
FR2934353A1 (fr) 2008-07-25 2010-01-29 Valeo Vision Sas Systeme optique avec fonction d'eclairage a large surface d'emission pour vehicule automobile
FR2953276A1 (fr) 2009-11-27 2011-06-03 Peugeot Citroen Automobiles Sa Dispositif d'eclairage a guide(s) de lumiere intercale(s) entre un reflecteur et un ecran
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FR2934353A1 (fr) 2008-07-25 2010-01-29 Valeo Vision Sas Systeme optique avec fonction d'eclairage a large surface d'emission pour vehicule automobile
FR2953276A1 (fr) 2009-11-27 2011-06-03 Peugeot Citroen Automobiles Sa Dispositif d'eclairage a guide(s) de lumiere intercale(s) entre un reflecteur et un ecran

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Also Published As

Publication number Publication date
US20140376247A1 (en) 2014-12-25
ES2823763T3 (es) 2021-05-10
FR2986305A1 (fr) 2013-08-02
PL2809985T3 (pl) 2021-01-11
JP2015505637A (ja) 2015-02-23
WO2013113726A1 (fr) 2013-08-08
EP2809985A1 (de) 2014-12-10
CN104379990A (zh) 2015-02-25
FR2986305B1 (fr) 2014-11-21

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