EP1541920B1 - Signalleuchte mit lichtemittierenden Dioden - Google Patents

Signalleuchte mit lichtemittierenden Dioden Download PDF

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Publication number
EP1541920B1
EP1541920B1 EP04292932A EP04292932A EP1541920B1 EP 1541920 B1 EP1541920 B1 EP 1541920B1 EP 04292932 A EP04292932 A EP 04292932A EP 04292932 A EP04292932 A EP 04292932A EP 1541920 B1 EP1541920 B1 EP 1541920B1
Authority
EP
European Patent Office
Prior art keywords
signal light
collimator
light according
lenses
ribs
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.)
Expired - Lifetime
Application number
EP04292932A
Other languages
English (en)
French (fr)
Other versions
EP1541920A1 (de
Inventor
Patrice Bocktaels
Sylvain Perrot
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.)
Sagemcom Broadband SAS
Original Assignee
Sagem Communications 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
Application filed by Sagem Communications SAS filed Critical Sagem Communications SAS
Publication of EP1541920A1 publication Critical patent/EP1541920A1/de
Application granted granted Critical
Publication of EP1541920B1 publication Critical patent/EP1541920B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
    • F21V13/12—Combinations of only three kinds of elements
    • 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
    • F21S43/255—Filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
    • F21V11/08—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using diaphragms containing one or more apertures
    • F21V11/12—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using diaphragms containing one or more apertures of slot type
    • 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
    • F21S43/26—Refractors, transparent cover plates, light guides or filters not provided in groups F21S43/235 - F21S43/255
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2111/00—Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00
    • F21W2111/02—Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00 for roads, paths or the like
    • 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 a light-emitting diode signaling light.
  • the object of the invention is to provide a signaling light having a phantom effect minimizing structure, preferably also improving the light transmission efficiency.
  • the invention proposes a signaling light comprising a housing closed by a front lens and in which is mounted a support plate carrying electroluminescent diodes, a transparent collimation plate interposed between the light emitting diodes. and the front lens and having on a face facing the front lens diffusion lenses comprising cylindrical ribs extending parallel to the each other, and an anti-ghost mask interposed between the collimation plate and the front lens and having opaque segments delimiting slots extending in a direction corresponding to the cylindrical ribs.
  • the diffusion lenses and slots of the anti-ghost mask ensures both a good transmission of the light beam in the desired directions and an elimination of parasitic reflections in these directions and a diffusion homogeneous in a plane perpendicular to the direction of the cylindrical ribs while minimizing the phantom effect in the plane where it is most troublesome, that is to say in a plane having a low incidence with the plane perpendicular to the ribs.
  • the collimation plate comprises collimating lenses on a face turned towards the light-emitting diodes.
  • the collimation lenses are individual aspheric revolution lenses arranged opposite the light-emitting diodes.
  • the beam emitted by the light-emitting diodes is immediately concentrated in a parallel beam with a high transmission efficiency.
  • collimation lenses have an axis of revolution offset relative to an axis of revolution of the corresponding light-emitting diode.
  • a parallel beam is thus obtained which is deflected at an angle corresponding to the distance between the axes of revolution so that the desired deviation is obtained by a simple determination of the offset distance between the axes of revolution.
  • the collimation plate has an axis of symmetry and comprises circular collimation ribs centered on the axis of symmetry, and the light-emitting diodes are arranged in a matrix in the vicinity of the focus of the ribs. of collimation.
  • the signaling light comprises, in a manner known per se, a housing 1 closed by a front lens 2 and containing a support plate 3 supporting electroluminescent diodes 4. Also known per se, support plate 3 is preferably a printed circuit connected to a control member (not shown) ensuring an ignition and extinction of the light-emitting diodes 4.
  • the signaling light further comprises a collimation plate 5.
  • the collimation plate 5 has a face provided with collimating lenses 6 facing the light-emitting diodes 4, and an opposite face provided with diffusion lenses 7.
  • each collimating lens 6 corresponds to a diode electroluminescent 4 and has a paraboloid-shaped surface whose axis of revolution 8 is in the same vertical plane as the axis of revolution 9 of the corresponding light-emitting diode 4 and extends parallel thereto but is shifted towards the down a distance d1 (see Figures 5 and 6).
  • the collimation lenses 6 thus ensure not only a paralleling of the beam emitted by the light-emitting diode 4 but also a deflection of the parallel beam downwards as illustrated in FIG. 5.
  • the collimating lenses 6 are contiguous to one another and have a hexagonal contour which corresponds to the arrangement of the light-emitting diodes 4 on the support plate 3.
  • the face of the collimation plate 5 turned towards the light emitting diodes 4 therefore has no protruding edge that can cause a parasitic diffusion of the light emitted by a external source.
  • the diffusion lenses 7 are constituted by vertical cylindrical ribs having a base contour in an arc of a circle so that the beam leaving the collimation plate 5 remains a beam parallel in a vertical plane (FIG. 5) but becomes a convergent beam in a horizontal plane (FIG. 6), this beam becoming divergent beyond the focal point 10 of the diffusion lenses 7.
  • the collimation plate 5 preferably comprises a multiplicity of diffusion lenses 7 for the same collimation lens 6.
  • the cylindrical ribs 7 are contiguous to each other and extend continuously over the entire height of the collimation plate 5 so that on the diffusion face the collimation plate also has no protruding edge likely to generate parasitic scattering.
  • the collimation plate 5 is preferably made by injection from a transparent plastic material.
  • the traffic light comprises an anti-ghost mask 11 disposed between the collimation plate 5 and the front lens 2.
  • the anti-ghost mask 11 is a perforated plate comprising a series of openings 12 each corresponding to the beam coming out of the collimation plate 5 emitted by a light-emitting diode 4.
  • the anti-ghosting screen 11 is arranged parallel to the collimation plate 5 at a distance d 2 from it corresponding to the distance of the foci 10 from the diffusion lenses 7 (FIG. 6).
  • Each opening 12 has a series of vertical bars 13 having a diamond-shaped section spaced from one another to define vertical slots 14 having a width just sufficient to allow the convergent-divergent beams from the diffusion lenses 7 to pass (FIG. ).
  • the distance between the cylindrical diffusion lenses 7 and the collimation lenses 6 is adapted so that a parasitic beam that passes through the diffusion lenses 7 and is reflected on the collimating lenses 6 can not focus in the slots 14 of the anti-ghost mask. The ghost effect is therefore further reduced by this arrangement.
  • the anti-ghost mask 11 may be made by injection from an opaque plastic material, preferably a dark matter so that the fire appears black to a user when the light emitting diodes 4 are extinguished.
  • the front lens 2 of the signaling light according to the invention can be transparent clear, that is to say, not tinted, without increase the risk of a ghost effect. The transmission efficiency is thus increased compared to traffic lights that use a tinted front lens to obtain reflections reducing ghosting.
  • the front lens 2 comprises a few ribs 15 to ensure diffusion in orientations that would not be reached by the beam scattered by the diffusion lenses 7.
  • the number of ribs 15 is however much less than the number of ribs usually required for ensure satisfactory dissemination in traditional traffic lights.
  • the signaling light comprises, as previously, a front lens 102, behind which an anti-phantom mask 111 extends, to which is attached a collimation plate 105 whose rear face is illuminated by a matrix of diodes 104.
  • the collimation plate 105 has a front face having cylindrical ribs 107 extending vertically.
  • the anti-ghost mask 111 is in the form of a grid comprising vertical bars delimiting vertical slots.
  • the anti-ghost mask 111 is preferably disposed at a distance from the collimation plate corresponding to a plane of the focal points of the diffusion lenses 107.
  • the rear face of the collimation plate 105 comprises circular collimation ribs centered on the axis of symmetry of the collimation plate.
  • the collimation ribs comprise a first group 100 of ribs 101 in the central portion of the collimation plate and a second group 103 of ribs 106 in the peripheral portion of the collimation plate.
  • the light-emitting diodes 104 are grouped according to a matrix of small dimensions, for example according to a square matrix having a dimension of 50 mm for a signaling light having a diameter of 300 mm, which is arranged in the vicinity of the focus collimation ribs, the axis of symmetry 115 of the matrix of light-emitting diodes 104 being shifted upwards by a distance d3 with respect to the axis of symmetry 116 of the collimation plate 105 in order to ensure a deflection of the light beam coming out of the collimation lens.
  • the ribs 101 of the central portion 100 of the collimation plate 105 comprise a cylindrical face 108 which extends parallel to the symmetry axis 116 of the collimation plate and a conical face 109 presenting by relative to the incident rays emitted by the light-emitting diodes 104 an angle allowing refraction of these incident rays so that the refracted rays form a beam substantially parallel to the symmetry axis 116 of the collimation plate with respect to the diode located at the focus , and tilted down for the diodes above the focus.
  • the incident rays striking the faces 108 produce refracted rays which are lost rays, the ribs 101 will therefore be provided to have a face 108 of small dimension relative to the face 109.
  • the ribs 106 of the peripheral portion 103 comprise a cylindrical face 112 parallel to the axis of symmetry of collimation and a conical face 113 inclined at an angle equal to or slightly smaller than the angle of incidence.
  • the incident rays then undergo refraction at the moment of crossing the face 112 and a reflection on the face 113 to also form a beam of reflected rays extending parallel to the axis of symmetry 116 of the collimation plate with respect to the diode located at the focus, and tilted down for the diodes above the fireplace.
  • the face of the front lens 102 facing the collimation plate 105 has horizontal grooves 114 in the form of a concave cylinder portion.
  • the grooves 114 are made so that the surface of the upper portion of the grooves 114 is substantially vertical while the surface of the the lower part of the grooves 114 has a more pronounced angle with respect to a vertical plane. It is also possible to provide grooves 114 having various inclinations depending on the part of the front lens in which they extend.
  • the mask has been illustrated in the form of a perforated opaque plate, it can also be made in the form of a transparent plate on which the slots 14 are delimited by opaque strips printed by screen printing, or in the form of a metal plate machined or engraved.
  • the ghost effect can be further minimized by adding reflective reliefs on the face of the mask 11 facing the front lens 2.
  • the lenses of diffusion have been described under form of cylindrical ribs and can be made according to point lenses arranged in rows to which correspond the slots of the anti-ghost mask.
  • cylindrical ribs 7 have been described with a basic contour in a circular arc, it is possible to provide different shapes in order to obtain a particular diffusion of the light beams.
  • collimation lenses have been described with a parabolic shape which ensures optimum transmission efficiency
  • collimating lenses having an aspheric shape or even a spherical shape can be made without departing from the scope of the invention.
  • the downward deflection is obtained with optimum efficiency with an axis of the collimating lens parallel to the axis of the corresponding diode, it is also possible to obtain a deflection by tilting the axis of the collimating lens but the yield transmission is reduced.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Optical Communication System (AREA)
  • Led Devices (AREA)
  • Traffic Control Systems (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)

Claims (15)

  1. Signalleuchte umfassend ein Gehäuse (1), das von einer Frontlinse (2, 102) geschlossen ist und in dem eine Stützplatte (3), die lichtemittierende Dioden (4, 104) trägt, eine transparente Kollimatorplatte (5, 105), die zwischen den lichtemittierenden Dioden (4, 104) und der Frontlinse (2, 102) angeordnet ist und auf der zur Frontlinse (2, 102) gewandten Seite Streulinsen umfasst, und eine Anti-Phantom-Maske angebracht sind, dadurch gekennzeichnet, dass die Streulinsen zylindrische Rippen (7, 107) umfassen, die zueinander parallel verlaufen, und dass die Anti-Phantom-Maske (11, 111) zwischen der Kollimatorplatte und der Frontlinse angeordnet ist und opake Segmente (13) umfasst, die Schlitze (14) begrenzen, die sich gemäß einer den zylindrischen Rippen (7, 107) entsprechenden Richtung erstrecken.
  2. Signalleuchte nach Anspruch 1, dadurch gekennzeichnet, dass die Schlitze der Anti-Phantom-Maske in einer vertikalen Richtung verlaufen.
  3. Signalleuchte nach Anspruch 1, dadurch gekennzeichnet, dass die zylindrischen Rippen (7, 107) ein kreisbogenförmiges Grundprofil haben.
  4. Signalleuchte nach Anspruch 1, dadurch gekennzeichnet, dass die Schlitze (14) der Maske parallel zu den zylindrischen Rippen (7, 107) verlaufen.
  5. Signalleuchte nach Anspruch 1, dadurch gekennzeichnet, dass die Maske (11, 111) von der Kollimatorplatte in einem Abstand (d2) angeordnet ist, der einer Ebene von Brennpunkten (10) der Streulinsen (7, 107) entspricht.
  6. Signalleuchte nach Anspruch 5, dadurch gekennzeichnet, dass die Maske (11, 111) Stäbe (13) umfasst, die einen rautenförmigen Querschnitt haben.
  7. Signalleuchte nach Anspruch 1, dadurch gekennzeichnet, dass die Schlitze (14) durch Öffnungen (12) begrenzt sind, die jede einem von der lichtemittierenden Diode (4) ausgehendem Strahlenbündel entspricht.
  8. Signalleuchte nach Anspruch 1, dadurch gekennzeichnet, dass die Kollimatorplatte (5) auf einer zu den lichtemittierenden Dioden gewandten Seite Sammellinsen (6, 101, 106) umfasst.
  9. Signalleuchte nach Anspruch 8, dadurch gekennzeichnet, dass die Sammellinsen (6) als Drehkörper ausgebildete individuelle asphärische Linsen sind, die gegenüber den lichtemittierenden Dioden (4) angeordnet sind.
  10. Signalleuchte nach Anspruch 9, dadurch gekennzeichnet, dass die Sammellinsen (6) eine Drehachse (8) haben, die gegenüber einer Drehachse (9) der entsprechenden lichtemittierenden Diode (4) versetzt ist.
  11. Signalleuchte nach Anspruch 8, dadurch gekennzeichnet, dass die Sammellinsen (6) aneinander grenzen.
  12. Signalleuchte nach Anspruch 8, dadurch gekennzeichnet, dass die Streulinsen (7) von den Sammellinsen (6) durch einen Abstand getrennt sind, der so gewählt ist, dass ein eintretender Störstrahl, dem es gelingt die Streulinsen (7) zu durchdringen und auf die Sammellinsen (6, 101, 106) zu fallen, nicht auf die Schlitze (14) der Anti-Phantom-Maske (11) fokussiert wird.
  13. Signalleuchte nach Anspruch 1, dadurch gekennzeichnet, dass die Kollimatorplatte (105) eine Symmetrieachse (116) aufweist und kreisförmige Kollimatorrippen (101, 106) umfasst, die um die Symmetrieachse (116) zentriert sind, und dass die lichtemittierenden Dioden (104) gemäß einer Matrix in der Nähe des Brennpunktes der Kollimatorrippen (101, 106) angeordnet sind.
  14. Signalleuchte nach Anspruch 13, dadurch gekennzeichnet, dass die Kollimatorrippen (101) in einem zentralen Teil (100) der Kollimatorplatte nur lichtbrechend sind, während die Kollimatorrippen (106) in einem peripheren Teil (103) lichtbrechend und -reflektierend sind.
  15. Signalleuchte nach Anspruch 13, dadurch gekennzeichnet, dass die Frontlinse (102) untereinander parallele Rillen (114) umfasst, die auf der zur Kollimatorplatte (105) gewandten Seite der Frontlinse (102) eine Fläche in Form eines konkaven Zylinderteils haben.
EP04292932A 2003-12-10 2004-12-09 Signalleuchte mit lichtemittierenden Dioden Expired - Lifetime EP1541920B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0314456A FR2863686B1 (fr) 2003-12-10 2003-12-10 Feu de signalisation a diodes electroluminescentes
FR0314456 2003-12-10

Publications (2)

Publication Number Publication Date
EP1541920A1 EP1541920A1 (de) 2005-06-15
EP1541920B1 true EP1541920B1 (de) 2007-02-21

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP04292932A Expired - Lifetime EP1541920B1 (de) 2003-12-10 2004-12-09 Signalleuchte mit lichtemittierenden Dioden

Country Status (4)

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EP (1) EP1541920B1 (de)
AT (1) ATE354765T1 (de)
DE (1) DE602004004862T2 (de)
FR (1) FR2863686B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3755943B1 (de) * 2018-02-19 2022-09-28 Marelli Automotive Lighting France Signalisierungsvorrichtung für ein kraftfahrzeug mit einem lichtundurchlässigen bildschirm, der von einer grösseren lichtmenge durchdrungen werden kann, die von einer hinter dem bildschirm verborgenen lichtquelle emittiert wird

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE481600T1 (de) * 2005-02-28 2010-10-15 Osram Opto Semiconductors Gmbh Led-anzeigevorrichtung
FR2888796B1 (fr) * 2005-07-25 2008-12-19 Peugeot Citroen Automobiles Sa Feu de signalisation pour vehicule automobile
DE102005042576A1 (de) * 2005-09-08 2007-03-15 Hella Kgaa Hueck & Co. Leuchteinheit für Kraftfahrzeuge
FR2905321B1 (fr) * 2006-09-06 2009-04-17 Peugeot Citroen Automobiles Sa Dispositif lumineux de signalement de vehicule automobile a effet diode
NL2000916C2 (nl) * 2007-10-10 2009-04-14 Innovative & Superior Technology Inc LED lichtbronmodule met homogenisatie van lichtopbrengst.
DE102009047882A1 (de) * 2009-09-30 2011-03-31 Osram Opto Semiconductors Gmbh LED-Verkehrssignal
CN102812507B (zh) * 2010-03-24 2016-04-13 西门子公司 光学指示部件和指示设备
ITFI20130290A1 (it) 2013-11-29 2015-05-30 Iguzzini Illuminazione Dispositivo per la sagomatura di fasci luminosi emessi da apparecchi di illuminazione.
DE102015109816A1 (de) * 2015-06-19 2016-12-22 Hella Kgaa Hueck & Co. Beleuchtungsvorrichtung für Fahrzeuge
WO2019158890A1 (fr) * 2018-02-19 2019-08-22 Automotive Lighting Rear Lamps France Dispositif de signalisation pour véhicule automobile comprenant un écran opaque permettant le passage d'une plus grande quantité de lumière émise par une source de lumière dissimulée derrière ledit écran

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0081361A1 (de) * 1981-12-08 1983-06-15 LUCAS INDUSTRIES public limited company Leuchte
GB8618150D0 (en) * 1986-07-24 1986-09-03 Lloyd G H Lens system
US5174649B1 (en) * 1991-07-17 1998-04-14 Precision Solar Controls Inc Led lamp including refractive lens element
US5636057A (en) * 1995-02-10 1997-06-03 Ecolux Inc. Prismatic toroidal lens and traffic signal light using this lens

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3755943B1 (de) * 2018-02-19 2022-09-28 Marelli Automotive Lighting France Signalisierungsvorrichtung für ein kraftfahrzeug mit einem lichtundurchlässigen bildschirm, der von einer grösseren lichtmenge durchdrungen werden kann, die von einer hinter dem bildschirm verborgenen lichtquelle emittiert wird

Also Published As

Publication number Publication date
FR2863686A1 (fr) 2005-06-17
FR2863686B1 (fr) 2006-02-24
EP1541920A1 (de) 2005-06-15
DE602004004862T2 (de) 2007-11-15
ATE354765T1 (de) 2007-03-15
DE602004004862D1 (de) 2007-04-05

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