WO2012093135A1 - Dispositif d'éclairage pour véhicule - Google Patents

Dispositif d'éclairage pour véhicule Download PDF

Info

Publication number
WO2012093135A1
WO2012093135A1 PCT/EP2012/050077 EP2012050077W WO2012093135A1 WO 2012093135 A1 WO2012093135 A1 WO 2012093135A1 EP 2012050077 W EP2012050077 W EP 2012050077W WO 2012093135 A1 WO2012093135 A1 WO 2012093135A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
lighting device
light guide
guiding element
elements
Prior art date
Application number
PCT/EP2012/050077
Other languages
German (de)
English (en)
Inventor
Martin Mügge
Original Assignee
Hella Kgaa Hueck & Co.
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 Hella Kgaa Hueck & Co. filed Critical Hella Kgaa Hueck & Co.
Publication of WO2012093135A1 publication Critical patent/WO2012093135A1/fr

Links

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
    • F21S43/20—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
    • F21S43/241—Light guides characterised by the shape of the light guide of complex shape
    • 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
    • F21S43/239—Light guides characterised by the shape of the light guide plate-shaped
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0075—Arrangements of multiple 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
    • F21S43/10—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]

Definitions

  • the invention relates to a lighting device for vehicles with a planar light guide having a light input surface for coupling light, a light outcoupling surface for coupling out light and two opposite flat sides, between which the injected light is totally reflectable, and with the light input surface associated light source.
  • a lighting device for vehicles in which a planar light-guiding element for generating a light function is integrated.
  • the planar light-guiding element has a narrow-side light coupling-in surface for coupling in light of an LED light source, opposite total reflecting flat sides and a light coupling-out surface for coupling out the light.
  • the light output surface extends along a flat side, so that a flat light emission is ensured.
  • Object of the present invention is therefore to develop a lighting device for vehicles with a plurality of strand-shaped Lichtauskoppel lake such that in a simple manner and space-saving a branched Lichtauskoppelkontur is guaranteed to generate at least one light function.
  • the invention with the preamble of claim 1 is characterized in that a plurality of in a tion point overlapping light-guiding elements is provided, wherein the one light-guiding element at the crossing point has a receiving contour for receiving the other light-guiding element.
  • At least two light-guiding elements are arranged such that they intersect at a common intersection, wherein a first light-guiding element has a receiving contour for receiving a different light-guiding element at the intersection.
  • a light output surface of the one light guide is interrupted at the intersection, while a light outcoupling surface of the other light guide is connected at the intersection point continuously with the other sections of the same light guide.
  • Opposite edges of the light outcoupling surface of the one light guide element bound flat sides of the other light guide element, so that the two light guide elements form a continuous light output contour in a cross shape.
  • the light is radiated exclusively through the other light-guiding element.
  • the one light guide serves as a receptacle or support in the crossing area.
  • the basic idea of the invention is to arrange a multiplicity of light-conducting elements in a nested arrangement, so that an approximately continuous, intersecting, strand-shaped light exit contour results. Due to the fact that the one light guide element has an extension which is smaller in the main light emission direction than in the adjoining regions, the light guide elements can be arranged quasi in the same plane, so that a saving of installation space is associated therewith. As a result of the fact that the other light-guiding element is accommodated at the point of intersection in which a light-guiding element forms, and thus virtually forms an attachment point, the assembly effort can be reduced.
  • a light coupling surface of the light-guiding elements is arranged on a side opposite the light-outcoupling surface thereof.
  • the light is thus coupled into the light-conducting element, as it were, in the main emission direction, totally reflected on opposite flat sides of the same light-guiding element, until it is radiated into the environment at the light-outcoupling surface.
  • the flat sides thus have no decoupling elements, but serve only for the forwarding of the light from a rear area to a front area of the light-guiding elements.
  • the light-guiding element has a linear light output surface which has at least one elongate main arm and a number of secondary arms branching off from the main arm.
  • an arbitrary or complex light exit contour can thereby be created, which can follow a predetermined visual appearance of the lighting device.
  • the light outcoupling surface of the at least two light guide elements extend in the intersection in a common plane, so that a homogeneous overall visual impression is caused.
  • a first light-guiding element has an optical surface adjoining the light-coupling surface on a light-coupling side, so that part of the light coupled in the first light-guiding element is directed in the direction of the crossing point, so that this light component is transmitted to the surroundings via the other light-guiding element is emitted.
  • the intersection region there is thus a passage of light from the rear first light-guiding element to the front other light-guiding element, so that specifically so much luminous flux is fed into the intersection point that a homogeneous illumination is ensured. The occurrence of "dark holes" in the crossing area is thus safely avoided.
  • the other light-guiding element is held in a form-fitting manner on the one light-guiding element at the point of intersection.
  • the other light guide by a dovetail connection or a tongue and groove connection or by engaging a dome in a blind hole of the one Be light guide element held.
  • a branched Lichtleitgesente can thus be created, which is fastened together on a common circuit board which is equipped with preferably provided for the light coupling in the light guide elements light sources.
  • a luminous flux to be coupled into the light guide element is dependent on a distance between the opposite flat sides of the light guide elements and / or the light function to be generated. At a large distance between the flat sides, a large luminous flux is coupled; at a small distance between the flat sides, a small luminous flux is coupled in, so that light of the same intensity is radiated along the light outcoupling surface for a given light function.
  • the light sources which are assigned to predetermined light-guiding elements, driven with different light intensity.
  • several light functions can thus be generated via the branched light-conducting element group.
  • 1 is a front perspective view of a number of light-guiding elements of the lighting device
  • FIG. 2 is an enlarged front view of crossing points of the light guide elements shown in FIG. 1, FIG.
  • Fig. 3 is a rear view of a portion of the light guide elements according to Figure 2 and
  • Fig. 4 is a detail of the front view of Figure 1, wherein light rays a rear first light-guiding element are drawn in, which are coupled in at the intersection point in a front second light-guiding element and exit at a light-outcoupling surface thereof into the environment.
  • a lighting device for vehicles can be used in the rear area as a signal light or in the bow area as a headlight.
  • a tail and / or brake and / or rear fog light function can be generated in the rear area.
  • a position light or daytime running light function can be generated in a front area.
  • a flashing light function can also be integrated in the lighting device.
  • the lighting device for vehicles has a plurality of light-guiding elements 1, 2, 3, 4, which are interconnected at intersection points K1, K2, K3.
  • a printed circuit board 5 carrier plate
  • LED light sources semiconductor light sources
  • the group of light-conducting elements 1, 2, 3, 4, the printed circuit board 5 and the LED light sources 6 are arranged in a housing, not shown, of the lighting device.
  • the group of light-conducting elements 1, 2, 3, 4 may be fastened to the printed circuit board 5 and / or to the housing, not shown, of the lighting device.
  • the light sources 6 assigned to the group of light-guiding elements 1, 2, 3, 4 are preferably arranged on the common carrier plate 5.
  • the light sources 6 associated therewith can also be arranged on different printed circuit boards 5, which are offset from one another in the main emission direction H.
  • the light-guiding elements 1, 2, 3, 4 have on a printed circuit board 5 facing Lichteinkoppelseite 7 a number of Lichteinkoppel lake 8, each having a arranged in a recess 9 of the Lichteinkoppelseite 7 convex Einkoppellinse 10, each associated with an LED light source 6 is.
  • a strand-shaped Lichtauskoppel structure 12 is provided at which the injected light is radiated to the environment.
  • the Lichtauskoppel ⁇ surface 12 is preferably provided with a scattering optics, that is, it has a scattering optics surface, for example, a cushion, strip, prism or Freiformoptik Structure or is designed as a structured surface, such as an erosion or ⁇ tz für Design
  • the light incoupling surface 8 of the light-guiding elements 1, 2, 3, 4 preferably has a coupling-in optical system which parallelises the coupled-in light bundle.
  • the coupling-in optical system can be designed as a parabolic reflection surface or as a Fresnel optical surface or as a lens optical surface.
  • each opposite flat sides 13 of the light-guiding elements 1, 2, 3, 4 preferably extend parallel to one another and preferably extend continuously between the light-coupling side 7 and the light-outcoupling side 11.
  • the opposite flat sides can converge to form a parabolic total reflection surface (optical surface 13) such that the coupled-in light is conducted forward in a desired manner in the main emission direction H.
  • the light coupling 12 of the optical fiber elements 1, 2, 3, 4 each extend line- shaped in a three dimensional space, so that one or more different light functions can be generated in response to the operation ⁇ state of the LED light sources.
  • all LED light sources 6 can be switched on in the dimmed state, so that light is emitted at the light output surfaces 8 of all the light guide elements 1, 2, 3, 4.
  • the LED light sources 6 assigned to the first light-guiding element 1 and the third light-guiding element 3 can be set to be increased in their light intensity (brightness). It can be seen that four different light guide elements 1, 2, 3, 4 are arranged, which are each formed in one piece.
  • a first light guide 1 has an elongated main arm V and a number of extending from the main arm 1 'branching subordinate arms 1 ".
  • a second light guide element 2 has a Langge ⁇ stretched main arm 2'.
  • a third light guide 3 includes an elongated main arm 3 'and a number of tributaries 3 "branching from the main arm 3 '.
  • a fourth light-guiding element 4 has an elongated main arm 4 'and a number of side branches 4 "branching off from the main arm 4'.
  • the light guide elements 1, 2, 3, 4 overlap in crossing points K1, K2, K3, wherein at the intersection points K1 and K2 the first light guide element 1 and the third light guide element 3 each have a groove-shaped receiving contour 14 (recess) into which an engagement section 15 of the same crossing further second light-guiding element 2 engages.
  • a section of the second light-guiding element 2 in the main emission direction H is arranged in front of the corresponding sections of the first light-guiding element 1 and the third light-guiding element 3.
  • the light extraction 12 of the Lichtleitelemen ⁇ te 1, 2, 3, 4 not only in a common plane, preferably in the crossover ⁇ points K1, K2, K3, extend, but that it also skewed or can be arranged inclined to the main emission H or a vertical plane.
  • the second light-guiding element 2 extends at an acute angle to a vertical plane, a lower edge 16 of the second light-guiding element 2 being arranged in the main emission direction H in front of an upper edge 17.
  • the second light-guiding element 2 and the fourth light-guiding element 4 are arranged at intersection points K1, K2 and K3 with play in the recess 14 of the first light-guiding element 1 and 3, respectively.
  • the light outcoupling surfaces 12 of the adjacent light guide elements 1, 2, 3, 4 in the crossing points K1, K2, K3 are arranged flush with each other.
  • the rear recesses of the light guide elements 1, 3 are arranged in the intersection points K1, K2, K3 in Schoabstrahlraum H behind the front engaging portions 15 of the light guide 2, 4, it is according to an embodiment of the invention for enabling a homogeneous light emission in the Junction points K1, K2, K3 (crossing regions) provided that a light transition from the first light guide 1 and third light guide 3 to the second light guide 2 takes place.
  • the parabolic contouring (optical surface) 13 is provided on the Lichteinkoppelseite 7, which adjoins the Lichteinkoppel requirements 8. As can be seen better from FIG.
  • the parabolic contouring (optical surface) 13 ' enables a light component 18 of the LED light source 6' assigned to the third light guide element 3 to be guided in the direction of the recess 14 and then transferred to the engagement section 15 of the second light guide element 2 becomes.
  • the light component 18 of an adjacent light-guiding element 3 can be used for light extraction exclusively or in addition to the light component which is totally reflected within the front light-guiding element 2 and coupled out at the intersection K1.
  • the adjacent light-guiding elements 1, 2, 3, 4 at the crossing points K1, K2, K3 also be positively connected to each other.
  • the recesses 14 or engagement sections 15 provided for covering the light-guiding elements 1, 2, 3, 4 may be designed such that they form a dovetail connection or a spring-groove connection.
  • the engaging portion 15 may also be formed dome-shaped, which can be inserted in a blind hole-shaped recess 14 of the adjacent light-guiding element.
  • the light emission according to the described embodiment takes place by means of four integrally formed light guide 1, 2, 3, 4, which are assembled for assembly at the intersections K1, K2, K3 and then simultaneously or sequentially by latching or by screwing or by ironing at the with corresponding LED light sources 6 equipped printed circuit board 5 is attached.
  • the invention allows a space-saving complex light signature, which allows a homogeneous appearance of the light functions, without it being apparent that to generate a predetermined light function light from different light guide elements 1, 2, 3, 4 is emitted.
  • K1, K2, K3 are incision surfaces 19 of the receiving contour 14 at a small distance or directly to flat sides 13 of the inserted adjacent light-guiding element 2, 3, 4 at.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Planar Illumination Modules (AREA)

Abstract

La présente invention concerne un dispositif d'éclairage pour véhicule comprenant un élément de transmission lumineuse plan qui présente une surface d'injection lumineuse conçue pour injecter de la lumière, une surface de sortie de lumière conçue pour faire sortir de la lumière et deux grands côtés opposés entre lesquels la lumière injectée peut être réfléchie en totalité, ainsi qu'une source lumineuse qui est associée à la surface d'injection lumineuse. Le dispositif comprend également plusieurs éléments de transmission lumineuse qui se croisent en un point d'intersection. L'élément de transmission lumineuse situé au niveau du point d'intersection présente un profil de réception conçu pour recevoir l'autre élément de transmission lumineuse.
PCT/EP2012/050077 2011-01-05 2012-01-04 Dispositif d'éclairage pour véhicule WO2012093135A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011000038.0 2011-01-05
DE102011000038A DE102011000038A1 (de) 2011-01-05 2011-01-05 Beleuchtungsvorrichtung für Fahrzeuge

Publications (1)

Publication Number Publication Date
WO2012093135A1 true WO2012093135A1 (fr) 2012-07-12

Family

ID=45529067

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2012/050077 WO2012093135A1 (fr) 2011-01-05 2012-01-04 Dispositif d'éclairage pour véhicule

Country Status (2)

Country Link
DE (1) DE102011000038A1 (fr)
WO (1) WO2012093135A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104154474A (zh) * 2013-05-14 2014-11-19 汽车照明罗伊特林根有限公司 具有光导体结构的机动车照明装置

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104235721B (zh) 2013-06-20 2017-12-26 汽车照明罗伊特林根有限公司 机动车的照明装置
CZ305740B6 (cs) 2015-01-07 2016-02-24 Varroc Lighting Systems, s.r.o. Signalizační svítilna
DE102017124311A1 (de) * 2017-10-18 2019-04-18 Lisa Dräxlmaier GmbH Leuchtvorrichtung
DE102021204889A1 (de) 2021-05-12 2022-11-17 Volkswagen Aktiengesellschaft Beleuchtungsvorrichtung für den Innenraum eines Kraftfahrzeugs
DE102023000935B3 (de) 2023-03-13 2024-08-22 Mercedes-Benz Group AG Leuchtvorrichtung und Verfahren zu deren Betrieb sowie Fahrzeug

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10034452A1 (de) 2000-07-15 2002-01-24 Hella Kg Hueck & Co Leuchte für Fahrzeuge
EP1854667A1 (fr) * 2006-05-11 2007-11-14 Schefenacker Patents S.à.r.l. Dispositif d'éclairage et rétroviseur extérieur avec un dispositif d'éclairage
DE102006036033A1 (de) 2006-08-02 2008-02-07 Hella Kgaa Hueck & Co. Leuchteinheit für Fahrzeuge
DE102007052696A1 (de) * 2007-01-11 2008-07-17 Zizala Lichtsysteme Gmbh Totalreflexionsoptik-System für einen Scheinwerfer oder eine Lichteinheit eines Kraftfahrzeuges
DE102008048764A1 (de) * 2008-09-24 2010-03-25 Hella Kgaa Hueck & Co. Beleuchtungsvorrichtung für Kraftfahrzeuge
EP2354637A2 (fr) * 2010-01-30 2011-08-10 Hella KGaA Hueck & Co. Dispositif d'éclairage pour véhicules

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005029363B4 (de) * 2005-06-24 2018-04-12 Automotive Lighting Reutlingen Gmbh Lichtleiterstruktur

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10034452A1 (de) 2000-07-15 2002-01-24 Hella Kg Hueck & Co Leuchte für Fahrzeuge
EP1854667A1 (fr) * 2006-05-11 2007-11-14 Schefenacker Patents S.à.r.l. Dispositif d'éclairage et rétroviseur extérieur avec un dispositif d'éclairage
DE102006036033A1 (de) 2006-08-02 2008-02-07 Hella Kgaa Hueck & Co. Leuchteinheit für Fahrzeuge
DE102007052696A1 (de) * 2007-01-11 2008-07-17 Zizala Lichtsysteme Gmbh Totalreflexionsoptik-System für einen Scheinwerfer oder eine Lichteinheit eines Kraftfahrzeuges
DE102008048764A1 (de) * 2008-09-24 2010-03-25 Hella Kgaa Hueck & Co. Beleuchtungsvorrichtung für Kraftfahrzeuge
EP2354637A2 (fr) * 2010-01-30 2011-08-10 Hella KGaA Hueck & Co. Dispositif d'éclairage pour véhicules

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104154474A (zh) * 2013-05-14 2014-11-19 汽车照明罗伊特林根有限公司 具有光导体结构的机动车照明装置
US9562663B2 (en) 2013-05-14 2017-02-07 Automotive Lighting Reutlingen Gmbh Lighting device in a motor vehicle with a light conductor arrangement
CN104154474B (zh) * 2013-05-14 2018-05-15 汽车照明罗伊特林根有限公司 具有光导体结构的机动车照明装置

Also Published As

Publication number Publication date
DE102011000038A1 (de) 2012-07-05

Similar Documents

Publication Publication Date Title
EP2354637B1 (fr) Dispositif d'éclairage pour véhicules
DE102014211874B4 (de) Beleuchtungseinrichtung eines Kraftfahrzeugs
DE102012107437B4 (de) Leuchtvorrichtung
EP1886871B1 (fr) Feu de signalisation pour véhicules
DE102011089575B3 (de) Beleuchtungseinrichtung für ein Kraftfahrzeug mit einem gestuften Lichtleiter
AT518118B1 (de) Beleuchtungseinheit für ein Kraftfahrzeug
DE102008048765A1 (de) Beleuchtungsvorrichtung für Kraftfahrzeuge
DE102011055429B4 (de) Beleuchtungsvorrichtung für Fahrzeuge
WO2012093135A1 (fr) Dispositif d'éclairage pour véhicule
DE102008048764A1 (de) Beleuchtungsvorrichtung für Kraftfahrzeuge
EP3194209B1 (fr) Projecteur de véhicule et procédé de fourniture d'une fonction d'éclairage au moyen d'un projecteur de véhicule
EP2688769A1 (fr) Lampe pour véhicule destinée à éclairer l'habitacle du véhicule
EP2384934A1 (fr) Lampe de véhicule automobile avec plusieurs fonctions d'éclairage
EP1898147A1 (fr) Dispositif d'éclairage pour véhicule
WO2013139962A1 (fr) Elément optique destiné à un phare de véhicule
DE102012112076A1 (de) Beleuchtungsvorrichtung für Fahrzeuge
DE102012103310A1 (de) Beleuchtungsvorrichtung für Fahrzeuge
DE102011000700A1 (de) Leuchte für ein Fahrzeug
EP1464888B1 (fr) Feu pour véhicule
DE102013105261A1 (de) Beleuchtungsvorrichtung für Fahrzeuge
DE102015115969A1 (de) Beleuchtungsvorrichtung für Fahrzeuge
DE102008048767B4 (de) Beleuchtungsvorrichtung für Kraftfahrzeuge mit mindestens einem flächigem Lichtleitelement, das bereichsweise mindestens eine langgestreckte Verdickung aufweist
EP2108883B1 (fr) Lampe de signalisation pour véhicules automobiles
EP2835578B1 (fr) Élément conducteur de lumière en forme de plaque en matériau transparent et module d'éclairage pour un dispositif d'éclairage de véhicule automobile doté d'un tel élément conducteur de lumière
DE102017106441A1 (de) Kraftfahrzeugleuchte mit einem flächigen Lichtleiter

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 12700937

Country of ref document: EP

Kind code of ref document: A1

122 Ep: pct application non-entry in european phase

Ref document number: 12700937

Country of ref document: EP

Kind code of ref document: A1