EP1176359B1 - Feu pour véhicule - Google Patents

Feu pour véhicule Download PDF

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Publication number
EP1176359B1
EP1176359B1 EP01116161A EP01116161A EP1176359B1 EP 1176359 B1 EP1176359 B1 EP 1176359B1 EP 01116161 A EP01116161 A EP 01116161A EP 01116161 A EP01116161 A EP 01116161A EP 1176359 B1 EP1176359 B1 EP 1176359B1
Authority
EP
European Patent Office
Prior art keywords
light
reflex reflector
emitting means
optical surfaces
elements
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
EP01116161A
Other languages
German (de)
English (en)
Other versions
EP1176359A2 (fr
EP1176359A3 (fr
Inventor
Klaus Henneböhle
Heinz-Albert Püttmann
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 EP1176359A2 publication Critical patent/EP1176359A2/fr
Publication of EP1176359A3 publication Critical patent/EP1176359A3/fr
Application granted granted Critical
Publication of EP1176359B1 publication Critical patent/EP1176359B1/fr
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
    • 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
    • F21S43/249—Light guides with two or more light sources being coupled into the light guide
    • 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
    • F21S43/235—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
    • 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
    • F21S43/242—Light guides characterised by the emission area
    • F21S43/245—Light guides characterised by the emission area emitting light from one or more of its major surfaces
    • 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

Definitions

  • the invention relates to a luminaire for vehicles according to the preamble of patent claim 1.
  • a luminaire for vehicles is known with a housing containing a light source, which is covered by a cover plate.
  • a plurality of reflector elements existing reflectors are arranged on a side facing the light source side of the lens.
  • the retroreflective elements are arranged in rows, with cylindrical lenses being formed between the retroreflector lines, which form a light passage for the light collected by means of an optical disk arranged between the cover disk and the light source, which light is emitted by the light source. Since the area occupied by the retroreflecting elements of the lens for the passage of the light emitted from the light source omitted, cylinder lenses of the optical disc must be matched to the cylindrical lenses of the lens.
  • a disadvantage of the known lamp that the lamp has a considerable depth as a result of the light emission in succession arranged optics and lens.
  • German patent application 199 46 850.8 is a lamp for vehicles with a formed as a light source and positioned in a housing Lichtabstrahlsch known that emits the light in the light emission direction through a transparent lens.
  • a retro-reflector is oriented with a number of optical surfaces arranged at an angle to one another in the direction of the lens. The retroreflector extends in regions on a housing wall, wherein the light emitted by the Lichtabstrahlstoffsch light is negligible.
  • a disadvantage of the known lamp is that in order to enable the reflector function additional housing surfaces must be provided, which increase the dimension of the lamp, in particular the depth of the same.
  • a luminaire for vehicles is known with a housing in which a plurality of light-emitting diodes and a retroreflector with a number of retroreflective elements are integrated as Lichtabstrahlstoff.
  • the reflecting elements extending in one plane are connected to one another in regions via light passages, wherein the light passages are each arranged at a distance from light-emitting diodes extending in a parallel plane.
  • the light passage is formed as a converging lens which is integrally connected to the adjacent retroreflective elements.
  • a luminaire for vehicles which has a Lichtabstrahlstoff and a transverse to the optical axis of the Lichtabstrahlstoffs light-guiding element to form a high set brake light.
  • the light-guiding element has a plurality of prism elements on a rear side facing the light-emitting means, so that the light emitted by the light-emitting means and coupled into the light-guiding element is radiated into the environment as a result of total reflection by an elongated light-outcoupling surface of the light-guiding element.
  • Object of the present invention is therefore to develop a lamp for vehicles with a light emitting means and a retroreflector receiving housing such that in a simple way the space depth of the lamp is reduced.
  • the invention has the features of claim 1.
  • the particular advantage of the invention is that on the other hand, the space depth of the lamp can be significantly reduced by the functional coupling between the retroreflective elements on the one hand and the Lichtabstrahlschn.
  • the basic idea of the invention is to arrange the light-emitting means in the vicinity of a retroreflective element, wherein the retroreflective element has a light passage for the passage of the light emitted by the light-emitting means. This results in a functional coupling between the retroreflector on the one hand and the Lichtabstrahlstoff on the other.
  • the light-emitting means is arranged in the region of an opening of the retroreflective element such that the light emitted by the light-emitting means is reflected at the optics surfaces of the retroreflective element.
  • the light passage is formed as a light opening, which serves to receive at least a front region of the Lichtabstrahlschs.
  • the space depth of the lamp can be reduced and on the other hand, a better utilization of the optical surfaces to increase the usable luminous flux of the lamp can be achieved.
  • a plurality of distributed retroreflective elements, on the one hand, and light passages corresponding to light-emitting means, on the other hand, are provided.
  • the light-emitting means can be arranged in front of, in or behind the light passage of the retroreflective element.
  • the retroreflective element is arranged coaxially to the light emitting element.
  • a retro-reflective field is disposed in front of a light emission field consisting of a plurality of light emission means in the light emission direction, wherein the reflection field has a plurality of reflection elements arranged in a surface.
  • the reflection function and, on the other hand, the light-emitting function are arranged in two planes spaced apart from each other and extending essentially perpendicular to the optical axis of the light-emitting elements.
  • this makes it possible to realize a homogeneous planar light function on the one hand and a reflection function on the other hand.
  • the retroreflective element is formed from a triple prism with at least three optical surfaces arranged at an obtuse angle to each other, wherein the longitudinal extent of the optical surfaces is substantially greater, preferably two to six times, than the transverse extent of the light transmission and / or Lichtabstrahlschs , Due to the relatively large-volume dimension of such a retroreflective element, in particular the lighting function can be assisted in the arrangement of the light-emitting means in the light opening.
  • a lamp for vehicles usually has a housing, not shown, which is covered in the light emission direction by a cover plate, not shown. Within the housing one or more Lichtabstrahlstoff is arranged in the light emission direction. How out Figure 1 to 3 to see is, the light emitting means may be formed as one or more arranged on a support plate light emitting diode 1. These light-emitting diodes 1 are each positioned in a preferably central receiving opening 2 of a retroreflector element 3.
  • the retroreflective element 3 consists of a triple prism with optical surfaces 4 arranged at an obtuse angle to one another, which are vapor-deposited with a reflective coating.
  • the light-emitting diodes 1 are arranged in such a way to the retroreflective elements 3 that a light head 5 of the light-emitting diode 1 extend almost completely into the space formed by the optical surfaces 4 opening in the light emission direction 6. Due to the relative position of the optical surfaces 4 to the light head 5 on the one hand and due to the size of the optical surfaces 4, they can reflect the emitted from the light emitting diodes 1 by reflection of the optical surfaces 4 Contribute light rays in the light emitting direction 6 to increase the luminous flux of the light emitting diode 1. The fact that the retroreflective elements 3 are oriented coaxially to the luminous head 5, the efficiency of the light source 1 can be further increased.
  • the optical surfaces 4 are oriented relative to one another such that the light incident parallel to the optical axis of the light-emitting diode 1 is reflected back into its direction of incidence after multiple reflection.
  • a plurality of light emitting diodes 1 are arranged distributed, which have a small transverse extent compared to the retroreflective elements 3, the styling of the lamp is characterized by a plurality of retroreflective elements 3 having reflectors 7. Due to the direct contact of the LEDs 1 at the apex of the retroreflective elements 3, the lamp can be realized with a relatively small component depth.
  • the housing may have a front in the light emission direction 6 remindstrahlerfeld 8 and Having in the light emission direction 6 past light emission field 9.
  • the retro-reflecting field 8 is arranged at a distance from the light-emitting field 9 and between the light-emitting field 9 on the one hand and a transparent cover lens 10 on the other hand.
  • the retro-reflecting field 8 is arranged like a checkerboard, with reflecting elements 11 alternating with light passages 12.
  • the retroreflective elements 11 are - as in the previous embodiment - formed by triple prisms, which reflect the incident light back from the environment in parallel.
  • the light passages 12 are transparent and substantially planar, so that the light of a respective light passage associated light emitting diode 13 in the light emitting 6 can pass through the light passage 12 is substantially unaffected.
  • the light passage 12 is integrally connected to the retroreflective elements 11.
  • the retroreflector 14 thus formed is preferably made of a transparent plastic material, wherein the retroreflective elements 11 are mirrored on a side facing the lens 10 by means of a reflective coating.
  • the retro-reflecting field 8 and the light-emitting field 9 are regularly provided with retroreflective elements 11 or LEDs 13, a homogeneous styling of the lamp can be realized.
  • a retroreflector field 15 can be formed from a plurality of reflector elements 16 arranged in the manner of a frame and a central strip 17 of light passages 18 in comparison with the previously described reflection field.
  • the light-emitting means can also be designed as one or more incandescent lamps 19 whose emitted light beams 20 are reflected by a reflector 21 in the direction of the light passage 18.
  • the Light passages 18 are disposed adjacent to each other so that the light is emitted in the form of a stripe.
  • a retro-reflecting field 22 can be formed by a plurality of reflecting elements 23 on the one hand and by light guides 24 as light emitting means on the other hand.
  • the optical waveguide 24 may be integrally connected to the retro-reflecting field 22 and extends as an extension of the retro-reflecting field 22 on a side of the retro-reflecting field 22 facing away from the lens 25 in the direction of a light source 26 designed as a light-emitting diode.
  • the light-emitting diode 26 is arranged at the free end of the light guide 24 so that the light rays 27 emitted by the light-emitting diode 26 are totally reflected on the lateral surfaces of the light guide 24 until they emerge at an end facing the lens 25.
  • FIGS. 8 and 9 illustrated embodiment of a light guide 28 this is positioned in a receiving opening 29 of the retro-reflecting field 22.

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)
  • Optical Elements Other Than Lenses (AREA)

Claims (6)

  1. - Feu pour véhicules automobiles avec un boîtier comportant un moyen d'émission de lumière (1) et un catadioptre, qui est couvert par un voyant extérieur transparent, le catadioptre étant orienté vers le voyant extérieur avec des éléments catadioptres (3) à un nombre de surfaces optiques (4) orientées les unes vers les autres dans un angle, qu'un moyen d'émission de lumière (1) est associé chaque fois à un nombre d'éléments catadioptres (3) et que l'élément catadioptre (3) est connecté de manière fonctionnelle à un passage de lumière (12) au moins dans le plan de l'élément catadioptre (3),
    caractérisé en ce que
    le passage de lumière est conçu comme une ouverture de réception (2) pour recevoir au moins une des zones avant du moyen d'émission de lumière (1) et que le moyen d'émission de lumière (1) est disposé de telle manière dans la zone de l'ouverture de réception (2) que les rayons lumineux émis par le moyen d'émission de lumière (1) soient réflexibles sur les surfaces optiques (4).
  2. - Feu selon la revendication 1, caractérisé en ce qu'une majorité de passages de lumière (2) et d'éléments catadioptres (3) bien dispersés est prévue, les moyens d'émission de lumière (1) étant disposés dans la zone des passages de lumière (2).
  3. - Feu selon la revendication 1 ou 2, caractérisé en ce que les surfaces optiques (4) de l'élément catadioptre (3) présentent une couche réfléchissante et sont disposées de telle manière par rapport à l'axe optique du moyen d'émission de lumière (1) que la lumière entrant de l'environnement en parallèle par rapport à l'axe optique retourne dans sa direction d'entrée après une réflexion multiple.
  4. - Feu selon l'une des revendications 1 à 3, caractérisé en ce qu'un champ de catadioptre (8) est prévu d'un côté avec une majorité d'éléments catadioptres (11) disposés en direction d'émission de lumière (6) devant un champ d'émission de lumière (9) présentant une majorité de moyens d'émission de lumière (1) et de l'autre côté, correspondant par rapport aux moyens d'émission de lumière aux passages de lumière transparents (2).
  5. - Feu selon la revendication 4, caractérisé en ce que le champ de catadioptre (8) est conçu en une pièce avec une répartition régulière des éléments catadioptre (11) et des passages de lumière (2) dans une surface plane ou arquée.
  6. - Feu selon l'une des revendications 1 à 5, caractérisé en ce que l'élément catadioptre (3) comporte un prisme triple avec au moins trois surfaces optiques (4) orientées chaque fois les unes vers les autres dans un angle obtus, l'étendue longitudinale des surfaces optiques (4) étant plus grande que le double de l'étendue transversale du passage de lumière (2) et/ou du moyen d'émission de lumière (5).
EP01116161A 2000-07-29 2001-07-04 Feu pour véhicule Expired - Lifetime EP1176359B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10037005 2000-07-29
DE10037005A DE10037005A1 (de) 2000-07-29 2000-07-29 Leuchte für Fahrzeuge

Publications (3)

Publication Number Publication Date
EP1176359A2 EP1176359A2 (fr) 2002-01-30
EP1176359A3 EP1176359A3 (fr) 2004-10-06
EP1176359B1 true EP1176359B1 (fr) 2012-03-21

Family

ID=7650657

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01116161A Expired - Lifetime EP1176359B1 (fr) 2000-07-29 2001-07-04 Feu pour véhicule

Country Status (3)

Country Link
EP (1) EP1176359B1 (fr)
AT (1) ATE550601T1 (fr)
DE (1) DE10037005A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10343840A1 (de) * 2003-09-23 2005-04-28 Hella Kgaa Hueck & Co Fahrzeugleuchte
CN100585269C (zh) 2004-09-20 2010-01-27 皇家飞利浦电子股份有限公司 具有非对称准直器的led准直器元件
DE102004061693A1 (de) * 2004-12-22 2006-07-06 Daimlerchrysler Ag Heckleuchte eines Fahrzeuges
DE102004061691A1 (de) * 2004-12-22 2006-07-06 Daimlerchrysler Ag Heckleuchte eines Kraftfahrzeuges
WO2007069123A2 (fr) 2005-12-12 2007-06-21 Philips Intellectual Property & Standards Gmbh Élément de collimateur de diodes led pour un phare de véhicule comportant une fonction de feu de croisement
US7866845B2 (en) * 2006-03-13 2011-01-11 Koninklijke Philips Electronics N.V. Optical device for mixing and redirecting light
FR2982658A1 (fr) * 2011-11-10 2013-05-17 Valeo Vision Dispositif optique comportant une pluralite de faces reflechissantes
DE102013110839A1 (de) * 2013-10-01 2015-04-02 Hella Kgaa Hueck & Co. Beleuchtungsvorrichtung für Fahrzeuge
JP6445818B2 (ja) 2014-09-19 2018-12-26 株式会社小糸製作所 車両用灯具

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU4272272A (en) * 1971-06-23 1973-11-29 Joseph Lucas (Industries) Limited Combined lens and reflector fora vehicle lamp
DE3438154C2 (de) * 1984-10-18 1994-09-15 Teves Gmbh Alfred Rückleuchte für Kraftfahrzeuge
JPH01197141A (ja) * 1988-02-02 1989-08-08 Stanley Electric Co Ltd 自動車用リアコンビネーションランプ
DE9002245U1 (fr) * 1990-02-26 1990-05-03 Hella Kg Hueck & Co, 4780 Lippstadt, De
DE19547861A1 (de) * 1995-12-21 1997-06-26 Reitter & Schefenacker Gmbh Rückleuchte für Fahrzeuge, vorzugsweise Kraftfahrzeuge
BR9811170A (pt) * 1997-08-12 2000-07-25 Decoma Int Inc Conjunto de lente bi-reflexiva e conjunto emissor de luz para utilização em um veìculo
DE19852999A1 (de) * 1998-11-17 2000-06-21 Volkswagen Ag Heckleuchte mit einer Seitenoptik für Fahrzeuge
DE19946850A1 (de) 1999-09-30 2001-04-05 Hella Kg Hueck & Co Lichttechnische Einrichtung für Fahrzeuge

Also Published As

Publication number Publication date
ATE550601T1 (de) 2012-04-15
EP1176359A2 (fr) 2002-01-30
EP1176359A3 (fr) 2004-10-06
DE10037005A1 (de) 2002-02-07

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