EP0472890A1 - Multi-compartment light for motor vehicle - Google Patents

Multi-compartment light for motor vehicle Download PDF

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Publication number
EP0472890A1
EP0472890A1 EP91112094A EP91112094A EP0472890A1 EP 0472890 A1 EP0472890 A1 EP 0472890A1 EP 91112094 A EP91112094 A EP 91112094A EP 91112094 A EP91112094 A EP 91112094A EP 0472890 A1 EP0472890 A1 EP 0472890A1
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EP
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Prior art keywords
shaped
barrel
cylindrical lenses
triple prisms
lines
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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.)
Granted
Application number
EP91112094A
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German (de)
French (fr)
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EP0472890B1 (en
Inventor
Wolfgang Bode
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Hella GmbH and Co KGaA
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Hella KGaA Huek and Co
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Publication of EP0472890A1 publication Critical patent/EP0472890A1/en
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    • 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

  • a multi-chamber lamp for motor vehicles is known, the lines of which alternate with triple prisms reflecting external light and lines with rectangular barrel-shaped scattering elements which have the same dimensions in line height. These height dimensions of the rows continue over the lens sections of the adjacent chambers and should enable a sufficient light yield in the case of a line structure of the optics which is supported in the area of the brake light and the rear fog lamp by an upstream optical disk, the light being directed onto the corresponding barrel-shaped scattering elements is projected.
  • a small installation depth of the lamp chamber is necessary, which should avoid the use of an optical disc upstream of the lens and still apply the radiation values prescribed by law.
  • Such an optical disk has a light-reducing effect and increases manufacturing costs.
  • the usual upstream optical lens can also be omitted in the bright rear fog lamp, since the optically effective surfaces of the circular cone, especially in the vertical radiation plane in the range of + 5 ° and -5 °, reinforce the range for this area Bring the radiation values required by law.
  • the circular cone adjoins the tapering end of a truncated cone, which results in a better removal of the lens from the mold.
  • FIG. 1 shows the detail of the lens of a chamber from a multi-chamber lamp shown in FIG. 5, the lines denoted by (1) representing barrel-shaped or cylindrical lenses (3), the lines denoted by (2) the circular cones (4 ) and the lines labeled (11) the triple prisms (12).
  • the circular cones (4) adjoin each other with flats (5), each making up about 1/4 of the base diameter of the circular cone, so that the greatest optical effectiveness is achieved in the vertical radiation of the light. From the vertical section AA shown in FIG. 2, the surface course of the barrel-shaped or cylindrical lenses (3) compared to the circular-conical scattering elements (4) can be seen.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

The invention relates to a multi-compartment light for motor vehicles, which has a lens, with a line-shaped structure extending over the entire width of the light. One lens panel of the multi-compartment light is provided with rectroreflectors whose triple prisms are arranged in line-shaped fashion. The lines alternate between triple prisms reflecting with extraneous light and barrel-shaped or cylindrical lenses (3) which have a rectangular projection surface whose long side is vertical. The rows with triple prisms reflecting extraneous light and the rows with the barrel-shaped or cylindrical lenses (3) are aligned with rows of optical diffusing elements of adjacent lens sections which have the same line height as the triple prisms and barrel-shaped or cylindrical lenses (3), the diffusing elements adjoining the barrel-shaped or cylindrical lenses (3) in a row-shaped fashion likewise being constructed as barrel-shaped or cylindrical lenses (3). Adjoining the triple prisms arranged in line-shaped fashion are optical diffusing elements which consist of circular cones (4) juxtaposed in lines, which are aligned with their vertices against the light exit direction and form an oblique angle. The circular cones (4) abut one another with flats, each flat being approximately 1/4 of the diameter of the base area of the circular cone. <IMAGE>

Description

Die Erfindung bezieht sich auf eine Mehrkammerleuchte für Kraftfahrzeuge, mit folgenden Merkmalen:

  • - die Lichtscheibe weist eine über die gesamte Leuchtenbreite sich erstreckende, zeilenförmige Struktur auf,
  • - ein Lichtscheibenfeld der Mehrkammerleuchte ist mit Rückstrahlern versehen, deren Tripelprismen zeilenförmig angeordnet sind,
  • - die Zeilen wechseln zwischen mit Fremdlicht reflektierenden Tripelprismen und tonnen-oder zylinderförmigen Linsen, die eine rechteckige und mit der langen Seite senkrecht stehende Projektionsfläche aufweisen,
  • - die Fremdlicht reflektierenden Tripelprismen und die tonnen- oder zylinderförmigen Linsen sind auf der Innenseite der Lichtscheibe angeordnet,
  • - die Zeilen mit Fremdlicht reflektierenden Tripelprismen und die Zeilen mit den tonnen-oder zylinderförmigen Linsen fluchten mit Zeilen optischer Streuelemente benachbarter Lichtscheibenabschnitte, die die gleiche Zeilenhöhe aufweisen wie die Tripelprismen und tonnen- oder zylinderförmigen Linsen, wobei die sich an die tonnen- oder zylinderförmigen Linsen zeilenförmig anschließenden Streuelemente ebenfalls als tonnen- oder zylinderförmige Linsen ausgebildet sind,
The invention relates to a multi-chamber lamp for motor vehicles, having the following features:
  • the lens has a line-shaped structure that extends across the entire width of the lamp,
  • a lens field of the multi-chamber lamp is provided with reflectors, the triple prisms of which are arranged in a row,
  • the lines alternate between triple prisms reflecting with extraneous light and barrel-shaped or cylindrical lenses which have a rectangular projection surface which is vertical with the long side,
  • the triple prisms reflecting extraneous light and the barrel-shaped or cylindrical lenses are arranged on the inside of the lens,
  • - The lines with triple prisms reflecting extraneous light and the lines with the barrel-shaped or cylindrical lenses are aligned with lines of optical scattering elements of adjacent lens sections which have the same line height as the triple prisms and barrel-shaped or cylindrical lenses, which are related to the barrel-shaped or cylindrical lenses scattering elements adjoining in a row are likewise designed as barrel-shaped or cylindrical lenses,

Aus der DE-PS 33 05 218 ist eine Mehrkammerleuchte für Kraftfahrzeuge bekannt, deren Zeilen sich abwechseln mit Fremdlicht reflektierenden Tripelprismen und Zeilen mit rechteckigen tonnenförmigen Streuelementen, die in ihrer Zeilenhöhe gleiche Abmessungen aufweisen. Diese Höhenabmaße der Zeilen setzen sich fort über die Lichtscheibenabschnitte der benachbarten Kammern und sollen bei einer zeilenmäßig angestrebten Struktur der Optiken eine genügende Lichtausbeute ermöglichen, die im Bereich des Bremslichtes und der Nebelschlußleuchte durch eine vorgeschaltete Optikscheibe unterstützt wird, wobei das Licht auf die entsprechenden tonnenförmigen Streuelemente projiziert wird. Um dem geringen Einbauraum für Mehrkammerleuchten in modernen Karosserien Rechnung zu tragen, ist jedoch eine geringe Einbautiefe der Leuchtenkammer notwendig, die möglichst auf eine der Lichtscheibe vorgeschalteten Optikscheibe verzichten sollte und dabei trotzdem die vom Gesetzgeber vorgeschriebenen Abstrahlwerte aufbringt.From DE-PS 33 05 218 a multi-chamber lamp for motor vehicles is known, the lines of which alternate with triple prisms reflecting external light and lines with rectangular barrel-shaped scattering elements which have the same dimensions in line height. These height dimensions of the rows continue over the lens sections of the adjacent chambers and should enable a sufficient light yield in the case of a line structure of the optics which is supported in the area of the brake light and the rear fog lamp by an upstream optical disk, the light being directed onto the corresponding barrel-shaped scattering elements is projected. In order to take into account the small installation space for multi-chamber lamps in modern car bodies, however, a small installation depth of the lamp chamber is necessary, which should avoid the use of an optical disc upstream of the lens and still apply the radiation values prescribed by law.

Außerdem wirkt sich eine solche Optikscheibe lichtmindernd und auf die Herstellungskosten erhöhend aus.In addition, such an optical disk has a light-reducing effect and increases manufacturing costs.

Es ist deshalb Aufgabe der Erfindung, die im Gattungsbegriff aufgeführte Mehrkammerleuchte so auszubilden, daß die vom Gesetzgeber geforderte Horizontal- und Vertikalstreuung bei vorgegebener Intensität durch die eingesetzte Lichtscheibenoptik erreicht wird, ohne dabei vor die abschließende Lichtscheibe eine Optikscheibe einsetzen zu müssen und wobei die in Nachbarbereichen der Lichtscheibe zu den Rückstrahlertripeln fluchtenden Zeilen mit ihren Streuelementen einen solchen homogenen Eindruck für den Betrachter von außen vermitteln, als würde sich die Struktur der Rückstrahlertripel über die Lichtscheiben der benachbarten Kammern fortsetzen.It is therefore an object of the invention to design the multi-chamber luminaire listed in the generic term so that the horizontal and vertical scatter required by law is achieved at a given intensity by the lens optics used, without having to use an optical disk in front of the final lens and in neighboring areas lines aligned with the lens to the reflector triples with their scattering elements give the viewer such a homogeneous impression from outside as if the structure of the reflector triples continued over the lenses of the neighboring chambers.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß

  • - die sich an die Tripelprismen zeilenförmig anschließenden optischen Streuelemente aus in Zeilen aneinandergereihter Kreiskegel bestehen,
  • - die Kreiskegel mit ihren Spitzen entgegen der Lichtaustrittsrichtung gerichtet sind,
  • - die Kreiskegel mit Abflachungen aneinandergrenzen,
  • - jede Abflachung eines Kreiskegels in etwa 1/4 des Grundflächendurchmessers des Kreiskegels beträgt,
  • - die Spitze des Kreiskegels einen stumpfen Winkel bildet.
This object is achieved in that
  • the optical scattering elements adjoining the triple prisms in line form consist of circular cones arranged in rows,
  • - The circular cones are directed with their tips against the light exit direction,
  • - adjoin the circular cones with flats,
  • - each flattening of a circular cone is approximately 1/4 of the base diameter of the circular cone,
  • - The tip of the circular cone forms an obtuse angle.

Bei Anwendung dieser Kreiskegelstruktur in der Lichtscheibe kann auch bei der lichtstarken Nebelschlußleuchte die sonst übliche vorgeschalte Optikscheibe entfallen, da die optisch wirksamen Flächen des Kreiskegels vor allem in der vertikalen Abstrahlungsebene im Bereich um +5° und -5° eine Verstärkung der für diesen Bereich vom Gesetzgeber geforderten Abstrahlungswerte bringen.When using this circular cone structure in the lens, the usual upstream optical lens can also be omitted in the bright rear fog lamp, since the optically effective surfaces of the circular cone, especially in the vertical radiation plane in the range of + 5 ° and -5 °, reinforce the range for this area Bring the radiation values required by law.

In einer vorteilhaften Ausbildung der Erfindung schließt sich der Kreiskegel an das verjüngende Ende eines Kegelstumpfes an, wodurch eine bessere Entnahme der Lichtscheibe aus dem Formwerkzeug gegeben ist.In an advantageous embodiment of the invention, the circular cone adjoins the tapering end of a truncated cone, which results in a better removal of the lens from the mold.

Die Erfindung wird anhand einer Zeichnung näher erläutert. Darin zeigen

  • Figur 1 eine vergrößerte Teilansicht auf die Innenseite der Lichtscheibe der Nebelschlußleuchte in der Mehrkammerleuchte,
  • Figur 2 einen Schnitt gemäß der Linie A-A in Figur 1,
  • Figur 3 einen Schnitt gemäß der Linie B-B in Figur 1,
  • Figur 4 einen vergrößerten Kreiskegel,
  • Figur 5 die Vorderansicht auf die Lichtscheibe der Mehrkammerleuchte.
The invention is explained in more detail with reference to a drawing. Show in it
  • FIG. 1 shows an enlarged partial view of the inside of the lens of the rear fog lamp in the multi-chamber lamp,
  • FIG. 2 shows a section along the line AA in FIG. 1,
  • FIG. 3 shows a section along line BB in FIG. 1,
  • FIG. 4 shows an enlarged circular cone,
  • Figure 5 shows the front view of the lens of the multi-chamber lamp.

In der Zeichnung zeigt Figur 1 den Ausschnitt der Lichtscheibe einer Kammer von einer in Figur 5 dargestellten Mehrkammerleuchte, wobei die mit (1) bezeichneten Zeilen tonnen- oder zylinderförmige Linsen (3) darstellen, die mit (2) bezeichneten Zeilen die aneinandergereihten Kreiskegel (4) und die mit (11) bezeichneten Zeilen die Tripelprismen (12). An den Seiten grenzen die Kreiskegel (4) mit Abflachungen (5) aneinander, wobei jede etwa 1/4 des Grundflächendurchmessers des Kreiskegels ausmacht, so daß die größte optische Wirksamkeit bei der Vertikalabstrahlung des Lichtes zustande kommt. Aus dem in Figur (2) gezeigten Vertikalschnitt A-A ist der Flächenverlauf der tonnen- oder zylinderförmigen Linsen (3) gegenüber den kreiskegelförmigen Streuelementen (4) ersichtlich. Der Strahlenverlauf zeigt, daß die vom Reflektor kommenden parallelgerichteten Strahlen (6 und 7) auf die stumpfwinkligen Flächen (10) des Kreiskegels (4) des Winkels (-y '" 148°) fallen und durch diese hinter der Lichtscheibe, bezogen auf die optische Achse (X) bei +5° nach oben und -5° nach unten, abgelenkt werden. Die Parallelstrahlen (8 und 9), die auf die tonnen- oder zylinderförmigen Linsen (3) fallen, werden dagegen hinter der Lichtscheibe so gefächert, daß sie einen Winkel von 7,5° um die optische Achse (Y) überstreichend ausfüllen und somit in Verbindung mit den kreiskegeligen Streuelementen (4) die nach ECE-Regelung geforderten Abstrahlwerte nach Intensität und Winkel erfüllen. In Figur 2 wird anschaulich gezeigt, daß die kreiskegeligen Streuelemente (4) vorrangig die Aufgabe haben, die Abstrahlwerte der tonnen- oder zylinderförmigen Linsen (3) in vertikaler Abstrahlebene zu ergänzen und diese besonders im leuchtennahen Bereich zu verstärken. Ein in Figur 4 stark vergrößerter Kreiskegel (4) zeigt die unterschiedlichen Böschungswinkel (α = 16°) des Kreiskegels (4) und (ß) des Kegelstumpfes (11). Der Böschungswinkel (ß) des Kegelstumpfes ist in erster Linie <90° >70°, um den Ausformungsprozeß der Lichtscheibe nach dem Spritzgießvorgang zu erleichtern.In the drawing, FIG. 1 shows the detail of the lens of a chamber from a multi-chamber lamp shown in FIG. 5, the lines denoted by (1) representing barrel-shaped or cylindrical lenses (3), the lines denoted by (2) the circular cones (4 ) and the lines labeled (11) the triple prisms (12). On the sides, the circular cones (4) adjoin each other with flats (5), each making up about 1/4 of the base diameter of the circular cone, so that the greatest optical effectiveness is achieved in the vertical radiation of the light. From the vertical section AA shown in FIG. 2, the surface course of the barrel-shaped or cylindrical lenses (3) compared to the circular-conical scattering elements (4) can be seen. The course of the rays shows that the parallel rays (6 and 7) coming from the reflector fall on the obtuse-angled surfaces (10) of the circular cone (4) of the angle (-y '"148 °) and through them behind the lens, based on the optical one Axis (X) at + 5 ° upwards and -5 ° downwards are deflected, whereas the parallel beams (8 and 9) that fall on the barrel or cylindrical lenses (3) are fanned out behind the lens so that they fill an angle of 7.5 ° around the optical axis (Y) and thus, in conjunction with the circular conical scattering elements (4), meet the radiation values for intensity and angle required by the ECE regulation circular conical scattering elements (4) primarily have the task of supplementing the radiation values of the barrel-shaped or cylindrical lenses (3) in the vertical radiation plane and of intensifying them particularly in the area close to the lamp Tightly enlarged circular cone (4) shows the different slope angles (α = 16 °) of the circular cone (4) and (ß) of the truncated cone (11). The slope angle (β) of the truncated cone is primarily <90 °> 70 ° in order to facilitate the process of shaping the lens after the injection molding process.

Claims (2)

1. Mehrkammerleuchte für Kraftfahrzeuge, mit folgenden Merkmalen: - die Lichtscheibe weist eine über die gesamte Leuchtenbreite sich erstreckende, zeilenförmige Struktur auf, - ein Lichtscheibenfeld der Mehrkammerleuchte ist mit Rückstrahlern versehen, deren Tripelprismen zeilenförmig angeordnet sind, - die Zeilen wechseln zwischen mit Fremdlicht reflektierenden Tripelprismen und tonnen- oder zylinderförmigen Linsen, die eine rechteckige und mit der langen Seite senkrecht stehende Projektionsfläche aufweisen, - die Fremdlicht reflektierenden Tripelprismen und die tonnen- oder zylinderförmigen Linsen sind auf der Innenseite der Lichtscheibe angeordnet, - die Zeilen mit Fremdlicht reflektierenden Tripelprismen und die Zeilen mit den tonnen- oder zylinderförmigen Linsen fluchten mit Zeilen optischer Streuelemente benachbarter Lichtscheibenabschnitte, die die gleiche Zeilenhöhe aufweisen wie die Tripelprismen und tonnen- oder zylinderförmigen Linsen, wobei die sich an die tonnen- oder zylinderförmigen Linsen zeilenförmig anschließenden Streuelemente ebenfalls als tonnen- oder zylinderförmige Linsen ausgebildet sind,
dadurch gekennzeichnet, daß - die sich an die Tripelprismen zeilenförmig anschließenden optischen Streuelemente aus in Zeilen (2) aneinandergereihten Kreiskegeln (4) bestehen, - die Kreiskegel (4) mit ihren Spitzen entgegen der Lichtaustrittsrichtung gerichtet sind, - die Kreiskegel (4) mit Abflachungen (5) aneinandergrenzen, - jede Abflachung (5) eines Kreiskegels (4) in etwa 1/4 des Grundflächendurchmessers des Kreiskegels beträgt, - die Spitze des Kreiskegels (4) einen stumpfen Winkel (y) bildet. 1. Multi-chamber lamp for motor vehicles, with the following features: the lens has a line-shaped structure that extends across the entire width of the lamp, a lens field of the multi-chamber lamp is provided with reflectors, the triple prisms of which are arranged in a row, the lines alternate between triple prisms reflecting external light and barrel-shaped or cylindrical lenses which have a rectangular projection surface which is vertical with the long side, the triple prisms reflecting extraneous light and the barrel-shaped or cylindrical lenses are arranged on the inside of the lens, - The lines with extraneous light reflecting triple prisms and the lines with the barrel-shaped or cylindrical lenses are aligned with lines of optical scattering elements of adjacent lens sections that have the same line height as the triple prisms and barrel-shaped or cylindrical lenses, which are related to the barrel-shaped or cylindrical lenses scattering elements adjoining in a row are likewise designed as barrel-shaped or cylindrical lenses,
characterized in that - The optical scattering elements adjoining the triple prisms in the form of lines consist of circular cones (4) lined up in lines (2), - The circular cones (4) are directed with their tips against the light exit direction, - adjoin the circular cones (4) with flats (5), - Each flattening (5) of a circular cone (4) is approximately 1/4 of the base diameter of the circular cone, - The tip of the circular cone (4) forms an obtuse angle (y). 2. Mehrkammerleuchte nach Anspruch 1, dadurch gekennzeichnet, daß der Kreiskegel (4) sich an das verjüngende Ende eines Kegelstumpfes (11) anschließt.2. Multi-chamber lamp according to claim 1, characterized in that the circular cone (4) adjoins the tapered end of a truncated cone (11).
EP91112094A 1990-08-10 1991-07-19 Multi-compartment light for motor vehicle Expired - Lifetime EP0472890B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4025393 1990-08-10
DE4025393A DE4025393C1 (en) 1990-08-10 1990-08-10

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EP0472890A1 true EP0472890A1 (en) 1992-03-04
EP0472890B1 EP0472890B1 (en) 1994-06-29

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0742409A1 (en) * 1995-05-09 1996-11-13 Valeo Vision Motor vehicle multifunction signal light comprising catadioptric and pseudocatadioptric elements

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2685440B1 (en) * 1991-12-20 1998-03-13 Valeo Vision WINDOW FOR OPTICAL SIGNALING DEVICE EQUIPPED WITH PSEUDO-CATADIOPTRIC ELEMENTS.
DE4324037B4 (en) * 1993-07-17 2006-07-13 Itt Automotive Europe Gmbh Signal light, in particular for motor vehicles
DE19844594A1 (en) 1998-09-29 2000-05-11 Hella Kg Hueck & Co Light for motor vehicles
DE10037007A1 (en) * 2000-07-29 2002-03-07 Hella Kg Hueck & Co Vehicle lamp, has a reflector comprising an assembly of injection molded base reflectors

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB590357A (en) * 1945-04-18 1947-07-15 Gen Electric Co Ltd Improvements in and relating to lighting fittings
LU60428A1 (en) * 1969-03-01 1970-04-28
DE3305218C2 (en) * 1983-02-16 1986-03-20 Westfälische Metall Industrie KG Hueck & Co, 4780 Lippstadt Multi-chamber light for motor vehicles

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE933563C (en) * 1953-11-05 1955-09-29 Westland Gummiwerke G M B H Reflector for road vehicles
US4332438A (en) * 1979-03-23 1982-06-01 Lucas Industries Limited Lens element

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB590357A (en) * 1945-04-18 1947-07-15 Gen Electric Co Ltd Improvements in and relating to lighting fittings
LU60428A1 (en) * 1969-03-01 1970-04-28
DE3305218C2 (en) * 1983-02-16 1986-03-20 Westfälische Metall Industrie KG Hueck & Co, 4780 Lippstadt Multi-chamber light for motor vehicles

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0742409A1 (en) * 1995-05-09 1996-11-13 Valeo Vision Motor vehicle multifunction signal light comprising catadioptric and pseudocatadioptric elements
FR2733949A1 (en) * 1995-05-09 1996-11-15 Valeo Vision MULTIFUNCTION SIGNALING LIGHT FOR MOTOR VEHICLE EQUIPPED WITH CATADIOPTRIC AND PSEUDO-CATADIOPTRIC ELEMENTS

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Publication number Publication date
EP0472890B1 (en) 1994-06-29
ES2055493T3 (en) 1994-08-16
DE4025393C1 (en) 1992-01-09

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