EP3158258B1 - Beleuchtungs- und/oder signalisierungsvorrichtung zur erzeugung eines gleichmässigen lichts auf einem bildschirm - Google Patents

Beleuchtungs- und/oder signalisierungsvorrichtung zur erzeugung eines gleichmässigen lichts auf einem bildschirm Download PDF

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Publication number
EP3158258B1
EP3158258B1 EP15732826.1A EP15732826A EP3158258B1 EP 3158258 B1 EP3158258 B1 EP 3158258B1 EP 15732826 A EP15732826 A EP 15732826A EP 3158258 B1 EP3158258 B1 EP 3158258B1
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EP
European Patent Office
Prior art keywords
screen
reflector
lighting
light
chambers
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.)
Active
Application number
EP15732826.1A
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English (en)
French (fr)
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EP3158258A1 (de
Inventor
Rodolphe Peron
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.)
PSA Automobiles SA
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PSA Automobiles SA
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Filing date
Publication date
Application filed by PSA Automobiles SA filed Critical PSA Automobiles SA
Publication of EP3158258A1 publication Critical patent/EP3158258A1/de
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Active legal-status Critical Current
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • 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
    • F21S43/26—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
    • 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
    • F21S43/30—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by reflectors
    • F21S43/33—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by reflectors characterised by their material, surface treatment or coatings
    • 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
    • F21S43/40—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the combination of reflectors and refractors
    • 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
    • F21S43/50—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by aesthetic components not otherwise provided for, e.g. decorative trim, partition walls or covers

Definitions

  • the invention relates to lighting and / or signaling devices, and more particularly relates to the so-called “lantern” function providing rear signaling of vehicles and in particular of motor vehicles.
  • This type of function must of course meet the regulatory requirements in terms of light intensity, photometry, colorimetry and distribution of the luminous flux in the visibility space and in particular in the rear space of the vehicle as regards rear signaling lights. providing the "lantern" function.
  • Another requirement which is not regulatory but which is becoming essential is that of the aesthetics of the lighting and / or signaling functions.
  • the components generating the light beams, their associated optics and their renderings for an outside observer participate in the visual signature of a vehicle model and / or its make and may be elements falling within the selection criteria at the time of the act of purchasing a vehicle.
  • light and / or signaling device is understood here to mean a device or equipment comprising a reflector, arranged so as to return light rays which emanate from a light source of the bulb or bulb type towards a determined direction. a plurality of light sources such as light-emitting diodes (or LEDs).
  • the figure 1 illustrates a front left optical unit 1 of a vehicle automobile in which a signaling device 2 of the state of the art is installed.
  • This optical unit 1 and its lighting device 2 are described in the document FR2960639 .
  • the signaling function is performed from a strip 3 shaped to present faces 4 of generally parabolic shape, adjacent, defining as many reflectors 5 as there are faces 4.
  • the parabolic faces 4 of the reflectors 5 are respectively connected to each other by optically neutral junction elements 6.
  • An electronic circuit 7 in the form of a printed circuit board (PCB), supports a plurality of LEDs 8 arranged so that their active surfaces 9 respectively face the center of each parabola 4 to create a plurality of oriented light beams 10. towards a screen (not shown), capable of diffusing the light received over the entire surface of the screen.
  • the junction elements 6 do not receive a light ray generated by the LEDs 8.
  • junction elements 6 reveal, for an observer located at the front of the vehicle, and facing the screen, as many dark areas as there are junctions 6. This results in a degradation of the homogeneity of the lighting function and / or signaling and therefore the rendering of these functions, which creates an unsightly effect, and harms the general impression of quality.
  • the aim of the invention is therefore to propose an alternative solution which makes it possible to improve the situation.
  • the reflecting face of the reflector has a curvature of variable radius.
  • the radius of curvature follows a parabolic profile.
  • the reflecting face defines a reflecting sheet of white color.
  • the reflecting sheet is obtained by profiling.
  • the reflector is obtained after molding a part attached to, or integral with, the housing; the reflecting face being a layer of material reflecting the light added to the concave part of the reflector or tinted in the mass.
  • the reflecting face is white in color.
  • the screen is sandblasted or grained or opaline to define light patterns of determined shapes on the screen.
  • the light sources are LEDs supported by the same printed circuit board (38) extending along the large dimension of the reflector.
  • Another object of the invention is a vehicle rear light, characterized in that it comprises at least one lighting and / or signaling device as described above.
  • the object of the invention is to provide a lighting device, the screen of which provides uniform illumination.
  • the lighting device is intended for the lighting function of the “lantern” type and forms part of a vehicle rear light, possibly of the automotive type.
  • the lighting device may be of the DRL ("Daytime running Light (or Lamp)") type intended to be automatically put into operation (or switched on) when the vehicle which it equips begins to move forward.
  • DRL Daytime running Light (or Lamp)
  • the figure 3 illustrates in a perspective view, a left rear light 100 of a motor vehicle equipped with a lighting device 20 according to the invention, which is intended to provide the “lantern” function.
  • the figure 4 schematically illustrates the rear light of the figure 3 in a cross-sectional view, along the axes of section IV-IV of the figure 3 .
  • the rear light 100 comprises a box 30 sealingly enclosing several lighting and / or signaling functions.
  • the two chambers 31 and 32 are separated by a horizontal partition wall 33 partially closing the chambers 31 and 32 to leave a central passage 34 between the two chambers 31 and 32.
  • the two chambers 31 and 32 are sealed by a common mirror 35 or by two separate windows specific to each chamber 31 or 32.
  • the rear face 36 of the upper half 31 of the housing 30 supports a light source 37 of the bulb type to perform, for example, the “brake light” function.
  • the first chamber 31 channels the light emitted by the source to the outside of the fire 100 protected by the glass 35.
  • the partition 33 of the first and second chambers 31 and 32 supports, in the vicinity of the rear face 36 of the box 30, a printed circuit 38 in the form of a strip, itself supporting a plurality of LEDs 39.
  • the strip 38 extends in the plane of the partition 33, perpendicular to the glass 35 and it is arranged so as to present the active surfaces 40 of the LEDs 39 facing the lower face 41 of the box 30.
  • LED lighting is dedicated to the "lantern" function.
  • a single reflector 50 is arranged and fixed inside the second chamber 32 and extends in a direction parallel to the bar 38 between the bar 38 and the lower face 41 of the housing 30.
  • the reflector 50 is arranged so as to return all of the light rays, emitted by the LEDs 39 in a first general vertical direction, towards the glass 35 in a second general horizontal direction.
  • the reflector 50 is in the form of a sheet obtained for example by profiling a plastic material such as ABS-PC, the face 51 of which, intended to be opposite the active surfaces 40 of the LEDs 39, is covered with a light-reflecting layer or else tinted throughout the reflector 50.
  • the color of the reflecting face 51 is preferably chosen “white”: color which “bursts” the light reflected on the face 51 and reinforces the appearance homogeneous illumination of a screen in comparison with a reflective surface of "aluminum” color which can promote "hot spots", in other words areas more reflective than others.
  • the dimensions and the shape of the reflecting face 51 which in the embodiment can be confused with the web 50 itself, are determined so as to obtain the lantern function with a specific visual effect for an observer located at the rear of the vehicle and therefore in front of the rear light 100.
  • the lantern function is restored by a convex screen 60 arranged and fixed in the second chamber 32 of the box 30.
  • the lower part of the convex screen 60 rests on the lower peripheral edge of the box 30 and its side edges match the side edges of the box 30.
  • the upper part of the screen 60 stops inside the case substantially in the center of the second chamber 32 and below the horizontal partition 33 so as to leave a passage between the partition 33 and the screen 60 .
  • the screen 60 defines light patterns taking the general form of two concentric half-rings 61 and 62: an interior light half-ring 61 and an exterior light half-ring 62.
  • the two patterns 61 and 62 are produced on the screen. screen 60 by known techniques of sanding, graining or using an opaline material or any other process or material capable of diffusing a light beam homogeneously over the entire surface of the patterns 61 and 62.
  • the two half-rings 61 and 62 are separated by a zone 63 opaque to light, advantageously bringing out the patterns 61 and 62 when they are illuminated.
  • These patterns define a particular light signature for the rear part of the vehicle giving a depth or 3D effect of the “lantern” function.
  • the dimensions and the shape of the reflecting surface 51 of the reflector 50 - length L (along Y), width l (along X), height H (along Z) and radius of curvature R - are adapted so as to receive a hand, the set of light rays emitted by the plurality of LEDs 39 and, on the other hand, to return said rays to the patterns 61 and 62 of the screen 60 with the minimum loss of luminous flux.
  • the reflector sheet 50 has a radius of curvature R progressively increasing from its upper part to its lower part characteristic of a parabolic shape.
  • the reflector 50 can constitute an integral part (integrally formed by molding) of the housing 30 or else it can be an attached molded part which is housed in the housing 30.

Landscapes

  • 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)

Claims (5)

  1. Beleuchtungs- und/oder Signalgebungsvorrichtung (20) mit einer Vielzahl von benachbarten Lichtquellen (39), die in der Lage sind, Lichtstrahlen (10) auszusenden, einem Reflektor (50), der gegenüber der Vielzahl von Lichtquellen (39) angeordnet und in der Lage ist, die von der Vielzahl von Lichtquellen (39) ausgesandten Lichtstrahlen zu reflektieren, und einem Schirm (60), der in der Lage ist, die von dem Reflektor (50) reflektierten Lichtstrahlen (10) zu empfangen und zu streuen, wobei der Reflektor (50) so geformt ist, dass er eine einzige konkave Reflexionsfläche (51) aufweist, die sich gegenüber der Mehrzahl von Lichtquellen (39) erstrecken und deren Abmessungen (L, ℓ, H und R) so ausgelegt sind, dass sie mindestens ein vordefiniertes Muster (61 oder 62) auf dem Bildschirm (60) beleuchten, die Mehrzahl von benachbarten Lichtquellen (39), der Reflektor (50) und der Schirm (60) in einer zweiten Kammer (32) eines Gehäuses (30) untergebracht sind, wobei das Gehäuse (30) eine erste Kammer (31) umfasst, in der eine oder mehrere Beleuchtungs- und/oder
    Signalisierungsfunktionen untergebracht sind,dadurch gekennzeichnet, dass die beiden Kammern (31 ; dadurch gekennzeichnet, dass die beiden Kammern (31; 32) durch eine horizontale Trennwand (33) getrennt sind, die die beiden Kammern (31; 32) teilweise verschließt; dadurch gekennzeichnet, dass die beiden Kammern (31; 32) durch eine horizontale Trennwand (33) getrennt sind, die die beiden Kammern (31; 32) teilweise verschließt, und dadurch, dass der obere Teil des Schirms (60) im Inneren des Gehäuses (30) im Wesentlichen in der Mitte der zweiten Kammer (32) und unterhalb der horizontalen Trennwand (33) aufhört, um einen Durchgang zwischen der Trennwand (33) und dem Schirm (60) freizulassen, wobei die reflektierende Fläche (51) des Reflektors (50) eine Krümmung mit einem variablen Radius (R) aufweist, die einem parabolischen Profil folgt, und dadurch, dass der Reflektor die Form einer Folie hat, die durch Profilieren eines Kunststoffmaterials erhalten wird; wobei die reflektierende Fläche (51) eine Schicht aus lichtreflektierendem Material ist, die auf den konkaven Teil des Reflektors (50) aufgebracht oder in der Masse gefärbt ist.
  2. Beleuchtungs- und/oder Signalgebungsvorrichtung (20) nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass die reflektierende Fläche (51) eine weiße reflektierende Folie definiert.
  3. Beleuchtungs- und/oder Signalgebungsvorrichtung (20) nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass der Schirm (60) sandgestrahlt oder gekörnt oder opalartig ist, um Lichtmuster bestimmter Formen (61, 62) auf dem Schirm (60) zu definieren.
  4. Beleuchtungs- und/oder Signalgebungsvorrichtung (20) nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die Lichtquellen (39) LEDs sind, die von derselben Leiterplatte (38) getragen werden, die sich entlang der großen Abmessung (L) des Reflektors (50) erstreckt.
  5. Fahrzeugrückleuchte (100), dadurch gekennzeichnet, dass sie mindestens eine Beleuchtungs- und/oder Signalgebungsvorrichtung (20) nach einem der vorstehenden Ansprüche umfasst.
EP15732826.1A 2014-06-19 2015-06-01 Beleuchtungs- und/oder signalisierungsvorrichtung zur erzeugung eines gleichmässigen lichts auf einem bildschirm Active EP3158258B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1455627A FR3022608B1 (fr) 2014-06-19 2014-06-19 Dispositif d'eclairage et/ou de signalisation generant une lumiere homogene sur un ecran
PCT/FR2015/051436 WO2015193575A1 (fr) 2014-06-19 2015-06-01 Dispositif d'éclairage et/ou de signalisation generant une lumiere homogene sur un ecran

Publications (2)

Publication Number Publication Date
EP3158258A1 EP3158258A1 (de) 2017-04-26
EP3158258B1 true EP3158258B1 (de) 2021-01-13

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EP15732826.1A Active EP3158258B1 (de) 2014-06-19 2015-06-01 Beleuchtungs- und/oder signalisierungsvorrichtung zur erzeugung eines gleichmässigen lichts auf einem bildschirm

Country Status (4)

Country Link
EP (1) EP3158258B1 (de)
CN (1) CN106662303B (de)
FR (1) FR3022608B1 (de)
WO (1) WO2015193575A1 (de)

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FR3062454B1 (fr) * 2017-01-27 2019-03-15 Peugeot Citroen Automobiles Sa Dispositif d’eclairage a masque a motifs 3d
FR3062452B1 (fr) * 2017-01-27 2019-03-29 Peugeot Citroen Automobiles Sa Dispositif d’eclairage a masque a face avant eclairee par l’image d’une piece de couleur
FR3062708A1 (fr) * 2017-02-07 2018-08-10 Peugeot Citroen Automobiles Sa Bloc optique de vehicule a face interne eclairee et visible de l’exterieur

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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
US20110317442A1 (en) * 2010-06-23 2011-12-29 Kazuya Makiuchi Vehicle light fitting unit
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FR2986305A1 (fr) * 2012-01-30 2013-08-02 Automotive Lighting Rear Lamps France Dispositif pour rendre homogene l'aspect d'un feu de signalisation de vehicule automobile

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DE102008019125A1 (de) * 2008-04-16 2009-10-22 Volkswagen Ag Fahrzeugleuchte
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
US20110317442A1 (en) * 2010-06-23 2011-12-29 Kazuya Makiuchi Vehicle light fitting unit
US20120163031A1 (en) * 2010-12-02 2012-06-28 Hidetaka Okada Vehicle light
FR2986305A1 (fr) * 2012-01-30 2013-08-02 Automotive Lighting Rear Lamps France Dispositif pour rendre homogene l'aspect d'un feu de signalisation de vehicule automobile

Also Published As

Publication number Publication date
FR3022608A1 (fr) 2015-12-25
WO2015193575A1 (fr) 2015-12-23
EP3158258A1 (de) 2017-04-26
CN106662303B (zh) 2019-12-24
CN106662303A (zh) 2017-05-10
FR3022608B1 (fr) 2018-07-20

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