EP1762777B1 - Dispositif d'éclairage pour véhicule automobile - Google Patents

Dispositif d'éclairage pour véhicule automobile Download PDF

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Publication number
EP1762777B1
EP1762777B1 EP06119632A EP06119632A EP1762777B1 EP 1762777 B1 EP1762777 B1 EP 1762777B1 EP 06119632 A EP06119632 A EP 06119632A EP 06119632 A EP06119632 A EP 06119632A EP 1762777 B1 EP1762777 B1 EP 1762777B1
Authority
EP
European Patent Office
Prior art keywords
light
disk
lighting unit
reflector
fact
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.)
Not-in-force
Application number
EP06119632A
Other languages
German (de)
English (en)
Other versions
EP1762777A2 (fr
EP1762777A3 (fr
Inventor
Michael Wüstefeld
Cornelius Dr. Neumann
Carsten Hohmann
Dr. Bruno Hüsgen
Martin Mügge
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.)
Hella GmbH and Co KGaA
Original Assignee
Hella KGaA Huek and 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 Huek and Co filed Critical Hella KGaA Huek and Co
Publication of EP1762777A2 publication Critical patent/EP1762777A2/fr
Publication of EP1762777A3 publication Critical patent/EP1762777A3/fr
Application granted granted Critical
Publication of EP1762777B1 publication Critical patent/EP1762777B1/fr
Not-in-force 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
    • F21S43/40—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
    • F21S43/20—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

Definitions

  • the invention relates to a lighting unit for motor vehicles according to the preamble of patent claim 1.
  • a disadvantage of the known lighting unit that only a limited LED effect in appearance can be achieved by the segmentation of the reflector surface or by an optical division of the reflector surface with different optics. Furthermore, it is disadvantageous that when using a clear cover, the light source is always visible and thus the impression of an LED function is not given.
  • a light unit for motor vehicles with a light source and a reflector wherein the reflector in Lichtabstrahlraum a first auxiliary lens with means for scattering the light and a second auxiliary lens are preceded by means for focusing the light parallelized by the reflector in Lichtabstrahlraum light.
  • the first additional lens is opaque, so that a part of the light emitted by the reflector beam can not be decoupled.
  • the means for scattering at the first auxiliary lens must be arranged relatively close to each other. A space for separate, in each case the means for scattering associated reflectors is therefore not available.
  • the invention has the features of claim 1.
  • the lighting unit according to the invention allows an easy to produce LED appearance, although preferably only a single light source is used in a rear area of the lighting unit.
  • a parallel light beam entering from the reflector on the back side of the small reflectors also makes use of an increased luminous efficacy.
  • a first auxiliary lens is provided with a plurality of small reflectors and arranged in a rear portion thereof through holes.
  • the surfaces of the small reflectors serve as a means of scattering the light.
  • a second auxiliary lens is provided, which is arranged in the light emission direction behind the first auxiliary lens and has a lens in a aligned with the through holes of the first auxiliary lens areas.
  • the lens has as a means for focusing the light on a collection lens segment, which protrudes on a reflector facing the rear side of the second auxiliary lens.
  • a parallelized partial light bundle can thereby be focused onto the passage opening of the first additional optical disc.
  • a lighting unit according to the invention for motor vehicles can be used as a tail light, headlight or auxiliary brake light.
  • the lighting unit can be used for example as a brake, turn signal, rear fog, reversing, tail or position light.
  • a lighting unit 1 according to a first embodiment according to the Figures 1 to 3c consists of a light source 2 and a light source 2 associated reflector 3 from a reflector 3 in the light emission direction 4 upstream first auxiliary lens 5 and a second auxiliary lens 6th
  • the first additional lens 5 has a plurality of distributed cup-shaped small reflectors 7, each having in a rear region through holes 8.
  • the surfaces of the small reflectors 7 are formed by segment-like optical surfaces 9, which essentially scatters the partial light bundle parallel to the reflector 3 in the light emission direction 4, which strikes the back of the surface of the small reflector 7 according to a predetermined light distribution.
  • the optical surfaces 7 are preferably formed as concave optical surfaces that give off the appearance of an LED reflector.
  • the concave optical surfaces 9 may be parabolic, spherical or formed as a free curved surfaces. The shape of the optical surfaces 9 is particularly dependent on the installation conditions, such as the available space and the depth or of the desired styling of the light unit.
  • the optical surfaces 9 of the small reflector 7 can be clear or provided with a mirrored coating.
  • the layer thickness of the coating produced by evaporation is chosen such that a permeability of the reflected light from the reflector 3 is given.
  • the entire surface of the first auxiliary lens 5 is therefore illuminated, so that a minimum light area is given.
  • the first auxiliary lens 5 of a crystal clear, transparent plastic material, optionally coated with a translucent or opaque material.
  • the second auxiliary lens 6 is disposed between the reflector 3 and the first auxiliary lens 5. How out FIG. 1 it can be seen, the second auxiliary lens 6 is located directly on the first auxiliary lens 5, wherein in the region of the passage openings 8 of the first auxiliary lens 5 lenses 10 are arranged on the second auxiliary lens 6.
  • the lenses 10 are integrally connected to the second auxiliary lens 6 and each have on a on a light source 2 side facing a collection lens segment 11 which protrudes from a rear side 12 of the second auxiliary lens 6.
  • the collecting lens segment 11 serves to bundle a partial light bundle L which is parallelized by the reflector 3 and which strikes the spherical coupling surface of the collecting lens segment 11.
  • the collecting lens element 11 has a width b 1 , which is greater than a width b 2 of the through hole 8 of the first auxiliary lens 5.
  • the collecting lens segment 11 serves to deflect and focus the partial light beam 13 in the direction of a Streulinsensegmentes 14 of the lens 10, from a front side 15 of the second auxiliary lens 6 abuts against the light source 2.
  • the scattered light segment 14 is formed dome-shaped and has a width which is smaller than the width b 2 of the passage opening 8.
  • the Streulinsensegment 14 is inserted inserted into the through hole 8, wherein a front part of the Streulinsensegmentes 14 protrudes from the through hole 8 ,
  • the scattering lens segment 14 causes a relatively large proportion of light L 1 of the light L coupled into the lens 10 to be coupled out directly in the light emission direction 4 in accordance with a predetermined light distribution.
  • the scattered lens segment 14 causes a small amount of light L 2 of the partial light bundle L to be coupled out laterally in the direction of the optical surfaces 9 of the respectively associated small reflector 7. Due to the relatively large proportion of light L 1 , which is radiated directly, the lens 10 has in comparison to the other surface areas of the first Additional lens 5 a relatively high luminance, so that in this way the relatively bright LEDs (LEDs) can be emulated.
  • the scattering lens segment 14 serves as a means for scattering the partial light bundle L reflected by the reflector 3 in the light emission direction 4.
  • the optical surfaces 9 of the small reflectors 7 likewise serve as means for scattering the further partial light bundle L emitted by the reflector 3 in the light emission direction 4.
  • the collecting lens segment 11 serves as a means for collecting the light emitted from the reflector 3 to the front partial light beam L.
  • the second auxiliary lens 6 may be made crystal clear or colored (e.g., red or yellow).
  • the second auxiliary lens 6 can thus specify the signal color of the lighting unit 1.
  • a colored light source 2 colored light bulb
  • an additional color filter is required.
  • the first additional lens 5 may be provided with a matting.
  • the optical surfaces 9 of the small reflectors 7 may be formed, for example, by an erosion or etching structure.
  • the first auxiliary lens 21 has - as in the first embodiment - the small reflectors 7.
  • a Streulinsensegment 23 is formed, which has the same function as the Streulinsensegment 14 of the lighting unit. 1
  • the second auxiliary lens 22 is flat on a front side 24. On a rear side 25 of the second auxiliary lens 22 rises in alignment with the Streulinsensegmenten 23 of the first auxiliary lens 21, a collection lens segment 26, which has the same function as the Sammelellinsensegment 11 of the first light unit 1.
  • the first auxiliary lens 21 is crystal clear, so that the scattering lens segment 23 can be integrally connected to the first auxiliary lens 21.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Claims (12)

  1. Unité d'éclairage pour véhicules automobiles, avec au moins une source de lumière (2), conçue en tant que lampe à incandescence, avec un réflecteur (3) associé à la lampe à incandescence (2), lequel parallélise, dans la direction du rayonnement lumineux, la lumière (L), qui est émise par la lampe à incandescence (2), avec une glace supplémentaire (6, 22), montée en amont du réflecteur (3), dans la direction de rayonnement (4) de la lumière, à laquelle sont associés, d'une part, des moyens (10, 26) de mise en faisceau de la lumière (L) et, d'autre part, des moyens (7, 14, 23) de diffusion de la lumière (L), caractérisée en ce que
    - les moyens de mise en faisceau de la lumière (L) comprennent plusieurs lentilles (10) disposées réparties, à chacune desquelles est associé un mini-réflecteur (7) en forme de pot,
    - un segment de lentille divergente (14) est disposé dans une ouverture de passage (8) du mini-réflecteur (7), une partie antérieure dudit segment de lentille divergente (14) faisant saillie hors de l'ouverture de passage (8),
    - la glace supplémentaire (5, 6 ; 21, 22) et les mini-réflecteurs (7) sont d'exécution translucide,
    - les surfaces (9) des mini-réflecteurs (7) sont orientées chacune vers la lampe à incandescence (2) et / ou vers les réflecteurs (3), de sorte qu'elles se trouvent en concordance avec la lumière (L) en incidence sur la face arrière des mini-réflecteurs (7).
  2. Unité d'éclairage selon la revendication 1, caractérisée en ce que les lentilles (10) sont disposées sur une deuxième glace supplémentaire (6) séparée, qui s'étend entre la première glace supplémentaire (5) et le réflecteur (3), lesdites lentilles (10) étant, au moins partiellement, disposées chacune dans une ouverture de passage (8) de la première glace supplémentaire (5).
  3. Unité d'éclairage selon la revendication 2, caractérisée en ce que les lentilles (10) présentent, sur la face orientée vers la source de lumière (2), un segment de lentille convergente (11), qui est en saillie sur une face arrière (12) de la deuxième glace supplémentaire (6).
  4. Unité d'éclairage selon l'une des revendications 1 à 3, caractérisée en ce que la largeur (b1) du segment de lentille convergente (11) est plus grande que la largeur (b2) de l'ouverture de passage (8) de la première glace supplémentaire (5)
  5. Unité d'éclairage selon l'une des revendications 1 à 4, caractérisée en ce que les segments de lentille divergente (14), en saillie de la face antérieure (15) de la deuxième glace supplémentaire (6), s'étendent, au moins partiellement, dans l'ouverture de passage (8) de la première glace supplémentaire (5).
  6. Unité d'éclairage selon l'une des revendications 1 à 5, caractérisée en ce que le segment de lentille divergente (14) de la lentille (10) est configuré de sorte qu'une grande part de lumière (L1) se trouve découplée directement dans la direction de rayonnement (4) en fonction d'une diffusion de lumière prédéterminée, et qu'une part de lumière plus petite (L2) se trouve découplée latéralement, en direction des surfaces (9) du mini-réflecteur (7) associé à la lentilles (10).
  7. Unité d'éclairage selon l'une des revendications 1 à 6, caractérisée en ce que les moyens de diffusion de la lumière sont formés par des surfaces optiques (9) du mini-réflecteur (7).
  8. Unité d'éclairage selon la revendication 7, caractérisée en ce que les surfaces optiques (9) du mini-réflecteur (7) et / ou la première glace supplémentaire (5) est / sont pourvue/s, sur le côté avant et / ou sur le côté arrière, d'un revêtement rendu réfléchissant.
  9. Unité d'éclairage selon l'une des revendications 2 à 8, caractérisée en ce que la deuxième glace supplémentaire (6) est plane et disposée directement adjacente à la première glace supplémentaire (5), et / ou reliée à la première glace supplémentaire (5) par un procédé de fabrication à deux composants.
  10. Unité d'éclairage selon la revendication 2, caractérisée en ce que la deuxième glace supplémentaire (22) est disposée à une distance de la première glace supplémentaire (21), un segment de lentille divergente (23) étant associé à la première glace supplémentaire (21) et un segment de lentille convergente (26) étant associé à la deuxième glace supplémentaire (22).
  11. Unité d'éclairage selon l'une des revendications 2 à 10, caractérisée en ce qu'une glace de recouvrement est installée en amont de la première glace supplémentaire (5, 21) et de la deuxième glace supplémentaire (6, 22).
  12. Unité d'éclairage selon l'une des revendications 1 à 11, caractérisée en ce que la première glace supplémentaire (5) est exécutée en couleur, en particulier en couleur rouge, et est fabriquée en matière transparente ou translucide ou opaque.
EP06119632A 2005-09-08 2006-08-28 Dispositif d'éclairage pour véhicule automobile Not-in-force EP1762777B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005042576A DE102005042576A1 (de) 2005-09-08 2005-09-08 Leuchteinheit für Kraftfahrzeuge

Publications (3)

Publication Number Publication Date
EP1762777A2 EP1762777A2 (fr) 2007-03-14
EP1762777A3 EP1762777A3 (fr) 2007-08-01
EP1762777B1 true EP1762777B1 (fr) 2009-10-21

Family

ID=37428607

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06119632A Not-in-force EP1762777B1 (fr) 2005-09-08 2006-08-28 Dispositif d'éclairage pour véhicule automobile

Country Status (3)

Country Link
EP (1) EP1762777B1 (fr)
AT (1) ATE446476T1 (fr)
DE (2) DE102005042576A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106016123A (zh) * 2016-06-29 2016-10-12 林灿鹏 外罩注塑一体式防水天使眼雾灯

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2940204B1 (fr) * 2008-12-18 2011-10-14 Peugeot Citroen Automobiles Sa Masque de bloc optique de vehicule automobile a excroissance pour la prolongation d'une paroi de reflecteur
DE102013222481A1 (de) 2013-11-06 2015-05-07 Zumtobel Lighting Gmbh Optisches Element für eine Leuchte, sowie Leuchte

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1128924B (it) * 1980-07-10 1986-06-04 Iao Industrie Riunite Spa Gruppo ottico per autoveicoli
DE3336178A1 (de) * 1983-10-05 1985-04-25 Robert Bosch Gmbh, 7000 Stuttgart Signalleuchte, insbesondere vordere blinkleuchte, fuer kraftfahrzeuge
DE4230963A1 (de) * 1992-09-16 1994-03-17 Teves Gmbh Alfred Signalleuchte
FR2808247B1 (fr) * 2000-04-26 2002-08-23 Axo Scintex Cie Equip Automobi Feu de signalisation de vehicule
DE10156973A1 (de) 2001-11-20 2003-05-28 Hella Kg Hueck & Co Fahrzeugleuchte
AU2003277206A1 (en) * 2002-10-01 2004-04-23 Timothy Dipenti Light emitting diode headlamp and headlamp assembly
FR2857434B1 (fr) * 2003-07-11 2006-09-29 Valeo Vision Feu de signalisation pour vehicule
DE10355210A1 (de) * 2003-11-26 2005-06-23 Hella Kgaa Hueck & Co. Leuchteinheit für Fahrzeuge
FR2863686B1 (fr) * 2003-12-10 2006-02-24 Sagem Feu de signalisation a diodes electroluminescentes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106016123A (zh) * 2016-06-29 2016-10-12 林灿鹏 外罩注塑一体式防水天使眼雾灯

Also Published As

Publication number Publication date
EP1762777A2 (fr) 2007-03-14
EP1762777A3 (fr) 2007-08-01
ATE446476T1 (de) 2009-11-15
DE102005042576A1 (de) 2007-03-15
DE502006005164D1 (de) 2009-12-03

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