EP2809985B1 - Dispositif pour rendre homogene l'aspect d'un feu de signalisation de vehicule automobile - Google Patents

Dispositif pour rendre homogene l'aspect d'un feu de signalisation de vehicule automobile 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
German (de)
English (en)
French (fr)
Other versions
EP2809985A1 (fr
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
Family has litigation
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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/fr
Application granted granted Critical
Publication of EP2809985B1 publication Critical patent/EP2809985B1/fr
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)
EP13705733.7A 2012-01-30 2013-01-30 Dispositif pour rendre homogene l'aspect d'un feu de signalisation de vehicule automobile Revoked EP2809985B1 (fr)

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 (fr) 2014-12-10
EP2809985B1 true EP2809985B1 (fr) 2020-07-15

Family

ID=47748577

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13705733.7A Revoked EP2809985B1 (fr) 2012-01-30 2013-01-30 Dispositif pour rendre homogene l'aspect d'un feu de signalisation de vehicule automobile

Country Status (8)

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

Families Citing this family (7)

* 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
CN108087833B (zh) * 2018-01-30 2024-06-07 伟瑞柯照明系统有限公司 一种汽车照明装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060152931A1 (en) 2001-12-14 2006-07-13 Digital Optics International Corporation Uniform illumination system
EP1775511A1 (fr) 2005-10-11 2007-04-18 Valeo Vision Dispositif d'éclairage ou de signalisation à guide optique pour véhicule automobile
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
US20110176305A1 (en) 2008-07-07 2011-07-21 Osram Gesellschaft Mit Beschraenkter Haftung Radiation-emitting apparatus

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DE19806526A1 (de) * 1998-02-17 1999-08-19 Hella Kg Hueck & Co Beleuchtungseinrichtung für Kraftfahrzeuge
EP0945710B2 (de) * 1998-03-21 2009-10-28 Continental Automotive GmbH Anzeigeinstrument
EP1036979A1 (fr) * 1999-03-16 2000-09-20 Koninklijke Philips Electronics N.V. Source de lumière, comprenant une pluralité de guides de lumière assemblés pour former une surface
FR2819040B1 (fr) 2001-01-02 2003-09-12 Valeo Vision Composant d'optique ou de style pour dispositif d'eclairage ou de signalisation pour vehicule automobile
DE10101795A1 (de) 2001-01-17 2002-07-18 Bosch Gmbh Robert Blinkleuchte, insbesondere vordere Blinkleuchte, für Kraftfahrzeuge
DE10311317A1 (de) 2003-03-14 2004-09-23 Volkswagen Ag Leuchteinrichtung für Fahrzeuge
FR2868506B1 (fr) 2004-03-30 2006-05-19 Axo Scintex Cie Equip Automobi Feu de signalisation de vehicule automobile
FR2953781B1 (fr) 2009-12-11 2016-02-26 Automotive Lighting Rear Lamps France Dispositif pour feu de signalisation de vehicule automobile
CN201803231U (zh) * 2010-07-20 2011-04-20 冠捷投资有限公司 具有扩散或增亮效果的导光板
DE202012013353U1 (de) * 2011-02-14 2016-07-01 Gentex Corporation Optische Niederprofilbeleuchtungsbaugruppe zur Verwendung in einem Fahrzeug-Außenspiegel

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060152931A1 (en) 2001-12-14 2006-07-13 Digital Optics International Corporation Uniform illumination system
EP1775511A1 (fr) 2005-10-11 2007-04-18 Valeo Vision Dispositif d'éclairage ou de signalisation à guide optique pour véhicule automobile
US20110176305A1 (en) 2008-07-07 2011-07-21 Osram Gesellschaft Mit Beschraenkter Haftung Radiation-emitting apparatus
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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Title
ANONYMOUS: "ANNUAL REPORT", BMW GROUP, 1 January 2011 (2011-01-01), XP055963101, [retrieved on 20220921]
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ANONYMOUS: "Valeo Lighting and Signaling", VALEOSERVICE.COM, 1 January 2018 (2018-01-01), XP055963109, [retrieved on 20220921]

Also Published As

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

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