EP3354979B1 - Beleuchtungsvorrichtung mit maske mit 3d-motiven - Google Patents

Beleuchtungsvorrichtung mit maske mit 3d-motiven Download PDF

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Publication number
EP3354979B1
EP3354979B1 EP18152908.2A EP18152908A EP3354979B1 EP 3354979 B1 EP3354979 B1 EP 3354979B1 EP 18152908 A EP18152908 A EP 18152908A EP 3354979 B1 EP3354979 B1 EP 3354979B1
Authority
EP
European Patent Office
Prior art keywords
face
mask
photons
lighting device
dimensional
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
EP18152908.2A
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English (en)
French (fr)
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EP3354979A1 (de
Inventor
Michael Bore
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.)
Stellantis Auto SAS
Original Assignee
PSA Automobiles SA
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 PSA Automobiles SA filed Critical PSA Automobiles SA
Publication of EP3354979A1 publication Critical patent/EP3354979A1/de
Application granted granted Critical
Publication of EP3354979B1 publication Critical patent/EP3354979B1/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
    • F21S43/50—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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141—Light emitting diodes [LED]
    • F21S41/155—Surface emitters, e.g. organic light emitting diodes [OLED]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/40—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades
    • 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
    • F21S43/31—Optical layout thereof
    • 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
    • F21V7/00—Reflectors for light sources
    • F21V7/10—Construction
    • 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
    • F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
    • F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles

Definitions

  • the invention relates to lighting devices, and more specifically those which comprise at least one light source associated with a mask in order to provide at least one photometric function.
  • the term “lighting device” is understood to mean a light device capable of ensuring at least one photometric function of lighting or signaling or of light effect, possibly decorative.
  • lighting devices are used, such as those defined above, to ensure at least one photometric function, such as for example a position light function ( or night light or lantern) or a daytime running light function (or DRL (for "Daytime running Light (or Lamp)" - light signaling automatically switched on when the vehicle is put into operation during the day)).
  • a position light function or night light or lantern
  • a daytime running light function or DRL (for "Daytime running Light (or Lamp)" - light signaling automatically switched on when the vehicle is put into operation during the day)
  • the mask of this type of lighting device is a part, generally made of plastic material, and responsible for preventing the passage of the photons generated except in predefined places. It is thus possible, for example, to define opaque zones, which possibly appear when they are backlit, and one or more transparent zones allowing the photons to pass.
  • the mask may comprise patterns on its front face which appear when they are backlit by the rear face and which are almost invisible in the absence of backlighting. These patterns are generally defined by metallization then laser ablation, or by partial metallization by means of a metallization resist mask, or by screen printing on a bonded or overmolded film, or even by printing.
  • This type of mask can only be used to define two-dimensional (or 2D) patterns, with no real relief (or 3D) effect. He is by therefore relatively limited in terms of luminous effect, possibly decorative.
  • the object of the invention is therefore in particular to improve the situation.
  • a lighting device comprising at least one light source capable of generating photons and a mask capable of allowing the generated photons to pass at predefined locations.
  • This lighting device comprises a mask with a front face, facing outwards, and provided with three-dimensional elements each comprising an opaque main face and at least one lateral face inclined with respect to this main face, providing a junction between this last and a main face of at least one other neighboring three-dimensional element, and transparent in order to constitute one of the predefined places through which the generated photons pass.
  • the invention also proposes a vehicle optical unit, optionally of the automotive type, and comprising at least one lighting device of the type presented above.
  • the invention also proposes a vehicle, optionally of the automobile type, and comprising at least one lighting device of the type of that presented above and/or at least one optical unit of the type of that presented above.
  • the object of the invention is in particular to propose a lighting device DE with light source(s) SL and mask M, and capable of providing at least one photometric function.
  • the lighting device DE is intended to equip an optical unit BO of a vehicle of the automobile type, such as for example a car.
  • a lighting device DE can be an item of equipment in itself (possibly comprising its own housing), or else can form part of equipment other than a vehicle headlight unit.
  • a DE lighting device can be part of any vehicle (land, sea (or river), or air), any installation, including industrial type, any device ( or system), and any building.
  • the optical unit BO (comprising at least one lighting device DE) is a rear light providing at least one photometric signaling function, such as for example a position light function (or pilot light or lantern).
  • the lighting device DE is a lighting device capable of providing at least one photometric lighting or signaling function or a lighting effect, possibly decorative.
  • it could, for example, provide a daytime running light function (or DRL (for "Daytime running Light (or Lamp)" - light signaling automatically switched on when the vehicle is put into operation during the day)).
  • a vehicle optical unit BO here a rear light
  • a lighting device DE according to the invention.
  • this optical unit BO comprises in particular a housing BB delimiting part of a cavity housing a lighting device DE according to the invention, as well as any other lighting means ensuring the minus one other photometric function, and a protective glass GP made of glass or plastic.
  • the BB box is intended, here, to be secured to a part of the bodywork of a vehicle (here in a left rear part). It is made of a rigid material, such as for example a plastic or synthetic material. In this case, it can be made by molding.
  • a lighting device DE comprises at least one light source SL and a mask M.
  • Each light source SL is capable of generating photons intended for the mask M, directly or indirectly.
  • each light source SL can be a light-emitting diode, of the conventional type (or LED (“Light-Emitting Diode”)) or of the organic type (or OLED (“Organic Light-Emitting Diode”)), or a laser diode.
  • LED Light-Emitting Diode
  • OLED Organic Light-Emitting Diode
  • each light source SL can, for example, be installed on a support plate PS.
  • This support plate PS can, for example, be a printed circuit board, of the PCB (“Printed Circuit Board”) type, rigid or flexible (“of the “Flex” type).
  • the mask M is specific to (or arranged to) allow the photons which are generated by the light source(s) SL to pass at predefined locations.
  • it can be made by molding in a plastic material such as polycarbonate (or PC) or polymethyl methacrylate (or PMMA), or glass.
  • the color of the material in which the mask M is made can be that which is called white crystal.
  • This mask M comprises a front face FV, facing outwards (and therefore towards the protective glass GP), and a rear face FR, opposite to the front face FV and receiving the photons generated by the source(s). ) of light SL.
  • the lighting device DE may also comprise a reflector RP capable of reflecting the photons generated by the light source(s) SL, towards the rear face FR of the mask M.
  • the photons generated by the light source(s) SL initially move towards the reflector RF which reflects them towards the rear face FR of the mask M.
  • the lighting device DE could not include a reflector RP, and in this case the photons generated by the light source(s) SL are directed directly towards the rear face FR of the mask M.
  • the front face FV of the mask M is provided with three-dimensional elements ET which each comprise an opaque main face FP and at least one side face FL.
  • Each side face FL of a three-dimensional element ET is inclined with respect to the main face FP of the latter (ET) and provides a junction between this main face FP and the main face FP of at least one other neighboring three-dimensional element ET.
  • each side face FL of a three-dimensional element ET is transparent in order to constitute one of the predefined places through which the generated photons pass (as illustrated in the picture 3 ).
  • each main face FP of a three-dimensional element ET constitutes a 3D pattern which appears when it is backlit by the rear face FR, and whose relief is highlighted (even amplified) by the photons which come out from each face lateral FL which extends it to the main face FP of at least one neighboring three-dimensional element ET.
  • Very many 3D patterns can thus be defined by molding. Similarly, a large number of light effects, possibly decorative, can be obtained.
  • each main face FP of a three-dimensional element ET has the general shape of a diamond.
  • the first facet FC1 of a first three-dimensional element ET comprises a side which is coupled via a side face FL to the second facet FC2 of a second three-dimensional element ET located below and to the left of the first three-dimensional element. ET
  • the second facet FC2 of this first three-dimensional element ET comprises a side which is coupled via another side face FL to the first facet FC1 of a third three-dimensional element ET located below and to the right of the first three-dimensional element ET.
  • the different main faces FP can have general shapes other than a diamond.
  • the three-dimensional elements ET may have main faces FP having different general shapes, geometric or not, provided that they allow their junction via the associated side faces FL.
  • the main faces FP are not necessarily subdivided into two facets FCj of different orientations which impart a 3D scale or backlit diamond point appearance.
  • they (FP) can be subdivided into more than two facets FCj of different orientations (for example three or four), or else not include any subdivision into facets while having one or more curvatures along at least one direction of the 'space.
  • each three-dimensional element ET comprises two side faces FL extending its main face FP. This results from the fact that the latter is subdivided into two facets FCj. But a three-dimensional element ET can comprise any number of lateral faces FL extending its main face FP, and this number is preferably equal to the number of facets FCj.
  • each side face FL of a three-dimensional element ET may, for example, have a generally triangular shape. This general shape here gives the impression that each main face FP is “open” in its lower part extended by the two associated side faces FL. But the side faces FL of the three-dimensional elements ET may have other general shapes, geometric or not. Moreover, the lateral faces FL are not necessarily identical from one three-dimensional element ET to another. Thus, in the example shown in the figure 2 , the three-dimensional elements ET placed on the same line at a given level have identical side faces FL, but of different dimensions from those of the side faces FL of the three-dimensional elements ET which are placed on the same line at a higher or lower level. For example, the height of the short side of each lateral face FL can increase when the level decreases, in order to reinforce the opening effect of the main faces FP located in the lower levels.
  • the lateral faces FL of the three-dimensional elements ET can mutually extend along lines (here oblique) which intersect and where the photons define light bands which intersect. A kind of frame or luminous grid is thus obtained via the side faces FL.
  • angle existing between a main face FP and an associated lateral face FL may optionally vary, for example depending on the level to which the three-dimensional element ET belongs. This is particularly the case in the two examples of mask M illustrated respectively on the figure 1 And 3 . But this angle could be substantially constant.
  • this angle can be a function of the general angle of inclination of the mask M with respect to a horizontal plane and/or of the shape of the sub-part SPk of the optional reflector RP which is predefined so as to reflect the photons towards associated three-dimensional elements ET (and therefore in particular towards their main faces FP and lateral faces FL).
  • the three sub-parts SP1 to SP3 are respectively inclined at three different angles with respect to a horizontal plane and the angles between the main faces FP and the associated side faces FL of the three-dimensional elements ET which are located next to each other. on the different levels are all different.
  • each main face FP can, for example, be coated on the front face FV with a metal layer which is suitable for ensuring its opacity.
  • this metallic layer can be aluminum or nickel/chrome.
  • each side face FL can, for example, present a transparency which results from an ablation, by means of a laser, of the metal layer previously deposited on the entirety of the front face FV, or else from depositing a resist (or a resist mask) during the metallization phase.
  • a resist or a resist mask
  • the lighting device DE when it is a rear light ensuring a position light function, it must produce a red light.
  • the red color may result, for example, from the use of light source(s) SL generating photons whose wavelength is that of white and from a mask M having this red color (possibly crystal). This last combination makes it possible to have an off rendering of red color on the FL side faces.
  • a reflector RP comprising, as indicated above, predefined sub-parts SPk in order to reflect the photons respectively towards associated three-dimensional elements ET (placed at different levels), makes it possible to have a homogeneous rendering at the level of each main face FP while respecting the photometric constraints thanks to the output of the photons by the lateral faces FL.
  • the mask M can have a non-zero average inclination with respect to a horizontal plane.
  • it (M) can be inclined with respect to this horizontal plane by an angle comprised between 20° and 50°.

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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)

Claims (7)

  1. Beleuchtungseinrichtung (DE) für ein Kraftfahrzeug, die mindestens eine photometrische Beleuchtungs-, Signalisierungs- oder Lichteffektfunktion mit mindestens einer zur Fotonenerzeugung geeigneten Lichtquelle (SL) und einer Maske (M) zum Durchlassen der erzeugten Fotonen an vorgegebenen Stellen gewährleisten kann, wobei die Maske (M) eine nach außen gerichtete Vorderseite (FV) umfasst und mit Dreidimensionale Elemente (ET), die jeweils eine opake Hauptfläche (FP) und mindestens eine zur Hauptfläche (FP) geneigte Seitenfläche (FL) aufweisen, die eine Verbindung zwischen der Hauptfläche (FP) und einer Hauptfläche (FP) mindestens eines benachbarten weiteren dreidimensionalen Elements (ET) herstellt, und die transparent ist, um eine der vordefinierten Stellen zu bilden, durch die Fotonen geführt werden erzeugt, dadurch gekennzeichnet, dass jede Hauptfläche (FP) eine allgemeine Rautenform aufweist, wobei jede Hauptfläche (FP) mindestens zwei Facetten (FCj) in Form des allgemeinen Dreiecks mit unterschiedlichen Orientierungen aufweist, wobei jede Facette (FCj) eine Seite von einer Seitenfläche verlängert ist j') einem anderen benachbarten dreidimensionalen Element (ET), wobei jede Seitenfläche (FL) eine im Allgemeinen dreieckige Form aufweist.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Seitenflächen (FL) der dreidimensionalen Elemente (ET) sich entlang sich kreuzender Linien erstrecken, und dass die Fotonen sich kreuzende Lichtbänder definieren.
  3. Vorrichtung nach einem der Ansprüche 1 bis 2, dadurch gekennzeichnet, dass jede Hauptseite (FP) auf der Vorderseite (FV) mit einer Metallschicht beschichtet ist, die ihre Opazität gewährleistet.
  4. Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass jede Seitenfläche (FL) eine Transparenz aufweist, die sich aus der Ablation einer zuvor abgeschiedenen Metallschicht mittels eines Lasers oder aus der Abscheidung eines Sparens während einer Metallisierungsphase ergibt.
  5. Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass sie einen Reflektor (RP) umfasst, der die erzeugten Fotonen auf eine der Vorderseite (FV) gegenüberliegende Rückseite (FR) der Maske (M) reflektiert.
  6. Fahrzeugoptikblock (BO), dadurch gekennzeichnet, dass er mindestens eine Beleuchtungseinrichtung (DE) nach einem der vorhergehenden Ansprüche umfasst.
  7. Fahrzeug, dadurch gekennzeichnet, dass es mindestens einen optischen Block (BO) nach Anspruch 6 und/oder mindestens eine Beleuchtungseinrichtung (DE) nach einem der Ansprüche 1 bis 5 umfasst.
EP18152908.2A 2017-01-27 2018-01-23 Beleuchtungsvorrichtung mit maske mit 3d-motiven Active EP3354979B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1750669A FR3062454B1 (fr) 2017-01-27 2017-01-27 Dispositif d’eclairage a masque a motifs 3d

Publications (2)

Publication Number Publication Date
EP3354979A1 EP3354979A1 (de) 2018-08-01
EP3354979B1 true EP3354979B1 (de) 2023-08-09

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EP18152908.2A Active EP3354979B1 (de) 2017-01-27 2018-01-23 Beleuchtungsvorrichtung mit maske mit 3d-motiven

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EP (1) EP3354979B1 (de)
CN (1) CN108361648B (de)
FR (1) FR3062454B1 (de)

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Publication number Priority date Publication date Assignee Title
FR3103538B1 (fr) * 2019-11-25 2022-11-04 Psa Automobiles Sa Module de signalisation pour véhicules automobiles
FR3103423B1 (fr) * 2019-11-26 2021-10-22 Psa Automobiles Sa Bloc optique pour véhicule automobile

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CN205227125U (zh) * 2015-11-26 2016-05-11 马瑞利汽车零部件(芜湖)有限公司 复合匀光车灯
EP3049284B1 (de) * 2013-09-27 2021-03-03 PSA Automobiles SA Beleuchtungsvorrichtung mit zwei beleuchtungsfunktionen, die von einer einzigen lichtquellengruppe ausgeführt werden, und lichtlecks

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JP3104870B2 (ja) * 1998-01-29 2000-10-30 スタンレー電気株式会社 自動車用ランプ
FR2808247B1 (fr) * 2000-04-26 2002-08-23 Axo Scintex Cie Equip Automobi Feu de signalisation de vehicule
FR2905321B1 (fr) * 2006-09-06 2009-04-17 Peugeot Citroen Automobiles Sa Dispositif lumineux de signalement de vehicule automobile a effet diode
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FR3011312A1 (fr) * 2013-09-27 2015-04-03 Peugeot Citroen Automobiles Sa Dispositif d'eclairage a deux fonctions d'eclairement assurees par un meme groupe de source(s) de lumiere associe a des moyens de guidage
KR102147940B1 (ko) * 2013-12-27 2020-08-25 엘지이노텍 주식회사 조명 장치
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
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Publication number Priority date Publication date Assignee Title
EP3049284B1 (de) * 2013-09-27 2021-03-03 PSA Automobiles SA Beleuchtungsvorrichtung mit zwei beleuchtungsfunktionen, die von einer einzigen lichtquellengruppe ausgeführt werden, und lichtlecks
CN205227125U (zh) * 2015-11-26 2016-05-11 马瑞利汽车零部件(芜湖)有限公司 复合匀光车灯

Also Published As

Publication number Publication date
FR3062454A1 (fr) 2018-08-03
FR3062454B1 (fr) 2019-03-15
CN108361648A (zh) 2018-08-03
EP3354979A1 (de) 2018-08-01
CN108361648B (zh) 2021-10-22

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