EP0889284B1 - Vehicle light - Google Patents
Vehicle light Download PDFInfo
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- EP0889284B1 EP0889284B1 EP98110622A EP98110622A EP0889284B1 EP 0889284 B1 EP0889284 B1 EP 0889284B1 EP 98110622 A EP98110622 A EP 98110622A EP 98110622 A EP98110622 A EP 98110622A EP 0889284 B1 EP0889284 B1 EP 0889284B1
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- EP
- European Patent Office
- Prior art keywords
- reflector
- ridges
- cylindrical surfaces
- lens
- lamp according
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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
- F21S43/40—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
Definitions
- the invention relates to a luminaire for vehicles according to the preamble of patent claim 1.
- a luminaire for vehicles which has a light-scattering reflector with parallel projections.
- a reflector covering the lens has on the inside a series of parallel projections, which are arranged perpendicular to the reflector projections.
- the width of the adjoining elevations is substantially greater than the distances between adjacent projections of the reflector, so that the lamp provides a uniform and harmonious appearance from the outside.
- DE 196 30 410 A1 relates to lights for vehicles, wherein the shape of the lamp is adapted to the aerodynamic shape of the vehicle body.
- this requires in many cases an asymmetrical shape of the reflector, so that a paraboloidal reflector can not be used.
- the lens is divided into lattice-shaped sections, in each of which a fisheye lens is formed.
- a disadvantage of the known lamp is that the reflector must have a relatively complex structure in order to produce an aesthetic appearance in cooperation with the lattice-shaped structure of the lens.
- EP 0 758 070 A1 discloses a luminaire for vehicles which has a light source, a reflector and a lens covering the reflector.
- the reflector is paraboloid-shaped and has a plurality of adjacent elevations, which extend perpendicular to arranged on an inner side of the lens surveys.
- the light source is surrounded by an intent filter whose front end wall has identically formed elevations as the elevations of the reflector surface. In this way, an externally homogeneous appearance of the lamp is created.
- a lamp for vehicles which has a light source, a lens and a reflector consisting of two reflector sections.
- a first reflector section is paraboloid-shaped.
- a second reflector section adjoins above the first reflector section and makes it possible to generate a partial light distribution which is arranged at the edge of the overall light distribution.
- the lamp can also be arranged in relatively flat body openings.
- Object of the present invention is therefore to provide a lamp in such a way that it is arbitrarily adaptable to the shape of a vehicle, wherein the reflector produces sufficient light intensity, and that in a simple manner an aesthetically pleasing appearance of the lamp is created.
- the invention has the features of claim 1.
- the combination of a paraboloidal reflector portion with an open space reflector portion a reflector is formed in a simple manner, the parabolic shaped reflector portion substantially contributes to the generation of the required light intensity and the free surface reflector portion is shaped such that the lamp used in an arbitrarily shaped recess of a vehicle body can be. Furthermore, an aesthetic effect of the lamp is generated by the formation of parallel elevations on the open space reflector portion and the parabolic reflector portion on the one hand and perpendicular to these stationary parallel elevations on the lens.
- the elevations of the second reflector portion and the lens are formed as convex cylindrical surfaces that can be easily applied to the reflector section manufacturing technology.
- the radius of the cylindrical surfaces is determined such that the cylindrical surfaces form a section at an acute angle in cross-section so that the entire cylindrical surface can contribute to the reflection of the light emitted by the light source.
- the elevations of the second reflector portion and the elevations of the lens are each spaced by the same amount to the adjacent elevations of the second reflector portion or the lens, so that the lamp has a matrix or lattice-like appearance, so that a good aesthetic effect is achieved.
- the reflector is designed as an elongated reflector, wherein the second reflector portion is formed in the longitudinal direction substantially planar and paraboloidal in the transverse direction.
- Fig. 1 and 2 show the schematic structure of a turn signal.
- the luminaire according to the invention can also be designed as part of a multi-chamber tail light for motor vehicles, being used as a stop lamp and / or indicator light.
- the lamp according to the invention is also applicable as a tail lamp, in particular rear fog or rear fog light.
- a flashing light shown in Fig. 1 and Fig. 2 comprises an elongate reflector (1) which is closed by a lens (2).
- the flashing light has a front circumferential bearing surface, on which a corresponding edge of the lens (2) rests.
- the contact surface is oval-shaped and enclosed in a corresponding recess of the vehicle body, wherein long sides (5) of the reflector (1) extend substantially in the horizontal direction.
- a reflection area (6) which comprises a paraboloid-shaped first reflector section (7) and a second reflector section (8).
- a socket (9) is provided, in which an incandescent lamp (10) is held.
- the second reflector section (8) is designed as an open-space reflector section, wherein it is paraboloidal in the horizontal direction substantially planar and in the vertical direction.
- the second reflector portion (8) forms in the horizontal direction to the optical axis of the incandescent lamp (10) an acute angle, so that no shadowing occurs in the outer region, but the entire surface of the second reflector portion (8) of the incandescent lamp (10) detected and lit up.
- the reflector surface of the second reflector portion (8) is formed by juxtaposed elevations, which are formed as convex cylindrical surfaces (11).
- the cylindrical surfaces (11) each extend from the upper side (5) to the opposite lower side (5).
- the cylindrical surfaces (11) are each formed symmetrically with respect to a longitudinal center plane (M) of the respective elevation.
- the radii of the inner cylindrical surfaces (11) are chosen so large that the reflection surface of the cylindrical surfaces (11) in cross section in each case forms a sector with an acute angle.
- the curvature of the cylindrical surfaces (11) becomes smaller, ie the radius of the cylindrical surfaces (11) becomes larger, the outer cylindrical surfaces (11) forming in each case a sector with an obtuse angle in cross-section, so that in the outer Area of the reflector portion (8) a smaller scattering is generated and thus a homogeneous light distribution is ensured.
- the radius of the cylindrical surfaces (11) to adapt to the requirements of the given light distribution.
- the width of the adjacent cylindrical surfaces (11) is about 6 mm.
- the width of the cylindrical surfaces (11) may alternatively be chosen larger or smaller.
- the first reflector section (7) has parallel elevations (12) which each extend as arcuate cylindrical surfaces between the sides (5) and have such a distance from one another that the boundary lines of the elevations (12) in front view of the housing (1) have the same distance as the cylindrical surfaces (11) of the second reflector portion (8).
- the elevations (12) are also formed as cylindrical surfaces.
- the elevations (11) of the second reflector section (8) and the elevations (12) of the first reflector section (7) may also be drop-shaped in cross-section. It is important that, in cooperation with the shaping of the reflector sections (7, 8) the drop shape is chosen so that no shadowing of the light bulb (10) emitted light rays at the surveys.
- the lens (2) has a series of inwardly pointing parallel elevations as cylindrical surfaces (13) whose width and curvature with those of the cylindrical surfaces (11) of the second reflector portion (8) correspond.
- the cylindrical surfaces (13) extend substantially perpendicular to the cylindrical surfaces (11) and the elevations (12) of the second reflector section and the first reflector section (7).
- the individual grid elements By interaction of the cylindrical surfaces (11, 13), or the elevations (12) receives the flashing light in front view of a lattice-shaped or matrix-like appearance, the individual grid elements have the same square shape.
- the cylindrical surfaces (11) or elevations (12) may extend in the horizontal direction, whereas the cylindrical surfaces (13) of the light disc (2) extend in the vertical direction.
- the cylindrical surfaces (11, 13) on the one hand and the elevations (12) on the other hand have such a different width that the lamp in front view has a rectangular appearance.
- the distance of the cylindrical surfaces (13) to adjacent cylindrical surfaces (13) is for example 8 mm, and the distance of the cylindrical surfaces (11) to each other, for example, 6 mm.
- the reflector (1) can have an almost arbitrary shape. Alternatively, the cylindrical surfaces may also extend concave.
- the reflector (1) is made of a PC and ABS plastic material and has a reflective coating.
- the lens (2) is made of a transparent PMMA plastic material.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Description
Die Erfindung betrifft eine Leuchte für Fahrzeuge nach dem Oberbegriff des Patentanspruchs 1.The invention relates to a luminaire for vehicles according to the preamble of
Aus der EP 0 639 740 A1 ist eine Leuchte für Fahrzeuge bekannt, die einen lichtstreuenden Reflektor mit parallelen Vorsprüngen aufweist. Eine den Reflektor abdeckende Lichtscheibe weist innenseitig eine Reihe von parallelen Erhebungen auf, die senkrecht zu den Reflektorvorsprüngen angeordnet sind. Die Breite der sich aneinander anschließenden Erhebungen ist wesentlich größer als die Abstände benachbarter Vorsprünge des Reflektors, so dass die Leuchte von außen ein gleichmäßiges und harmonisches Erscheinungsbild liefert.From EP 0 639 740 A1 a luminaire for vehicles is known, which has a light-scattering reflector with parallel projections. A reflector covering the lens has on the inside a series of parallel projections, which are arranged perpendicular to the reflector projections. The width of the adjoining elevations is substantially greater than the distances between adjacent projections of the reflector, so that the lamp provides a uniform and harmonious appearance from the outside.
Die DE 196 30 410 A1 bezieht sich auf Leuchten für Fahrzeuge, wobei die Form der Leuchte an die aerodynamische Form des Fahrzeugkörpers angepasst ist. Dies bedingt jedoch in vielen Fällen eine unsymmetrische Form des Reflektors, so dass ein paraboloidförmiger Reflektor nicht verwendet werden kann. Es wird vorgeschlagen, die Reflexionsoberfläche als Reflexionsstufen vorzusehen, die zwischen benachbarten und geschlossenen Kurven von Drehparaboloiden angeordnet sind. Zur Erzeugung eines gitterförmigen Aussehens der Leuchte ist die Lichtscheibe in gitterförmige Abschnitte unterteilt, in die jeweils eine Fischaugenlinse geformt ist. Nachteilig an der bekannten Leuchte ist, dass der Reflektor eine relativ aufwendige Struktur aufweisen muss, um im Zusammenwirken mit der gitterförmigen Struktur der Lichtscheibe ein ästhetisches Aussehen zu erzeugen.DE 196 30 410 A1 relates to lights for vehicles, wherein the shape of the lamp is adapted to the aerodynamic shape of the vehicle body. However, this requires in many cases an asymmetrical shape of the reflector, so that a paraboloidal reflector can not be used. It is proposed to provide the reflection surface as reflection stages disposed between adjacent and closed curves of rotational paraboloids. To produce a grid-like appearance of the lamp, the lens is divided into lattice-shaped sections, in each of which a fisheye lens is formed. A disadvantage of the known lamp is that the reflector must have a relatively complex structure in order to produce an aesthetic appearance in cooperation with the lattice-shaped structure of the lens.
Aus der EP 0 758 070 A1 ist eine Leuchte für Fahrzeuge bekannt, die eine Lichtquelle, einen Reflektor und eine den Reflektor abdeckende Lichtscheibe aufweist. Der Reflektor ist paraboloidförmig ausgebildet und weist eine Mehrzahl von benachbarten Erhebungen auf, die senkrecht zu auf einer Innenseite der Lichtscheibe angeordneten Erhebungen verlaufen. Die Lichtquelle ist mit einem Vorsatzfilter umgeben, dessen vorderseitige Stirnwand gleich ausgebildete Erhebungen aufweist wie die Erhebungen der Reflektoroberfläche. Auf diese Weise wird ein von außen homogenes Erscheinungsbild der Leuchte geschaffen.EP 0 758 070 A1 discloses a luminaire for vehicles which has a light source, a reflector and a lens covering the reflector. The reflector is paraboloid-shaped and has a plurality of adjacent elevations, which extend perpendicular to arranged on an inner side of the lens surveys. The light source is surrounded by an intent filter whose front end wall has identically formed elevations as the elevations of the reflector surface. In this way, an externally homogeneous appearance of the lamp is created.
Aus der US 4 885 669 A ist eine Leuchte für Fahrzeuge bekannt, die eine Lichtquelle, eine Lichtscheibe sowie einen aus zwei Reflektorabschnitten bestehenden Reflektor aufweist. Ein erster Reflektorabschnitt ist paraboloidförmig ausgebildet. Ein zweiter Reflektorabschnitt schließt sich oberhalb des ersten Reflektorabschnitts an und ermöglicht die Erzeugung einer Teillichtverteilung, die randseitig der Gesamtlichtverteilung angeordnet ist. Hierdurch kann die Leuchte auch in relativ flach ausgebildeten Karosserieöffnungen angeordnet sein.From US 4,885,669 A a lamp for vehicles is known, which has a light source, a lens and a reflector consisting of two reflector sections. A first reflector section is paraboloid-shaped. A second reflector section adjoins above the first reflector section and makes it possible to generate a partial light distribution which is arranged at the edge of the overall light distribution. As a result, the lamp can also be arranged in relatively flat body openings.
Aufgabe der vorliegenden Erfindung ist es daher, eine Leuchte derart auszubilden, daß sie beliebig an die Form eines Fahrzeuges anpaßbar ist, wobei der Reflektor eine ausreichende Lichtstärke erzeugt, und daß auf einfache Weise ein von außen ästhetisch wirkendes Erscheinungsbild der Leuchte geschaffen wird.Object of the present invention is therefore to provide a lamp in such a way that it is arbitrarily adaptable to the shape of a vehicle, wherein the reflector produces sufficient light intensity, and that in a simple manner an aesthetically pleasing appearance of the lamp is created.
Zur Lösung dieser Aufgabe weist die Erfindung die Merkmale des Patentanspruchs 1 auf.To solve this problem, the invention has the features of
Durch die Kombination eines paraboloidförmigen Reflektorabschnitts mit einem Freiflächen-Reflektorabschnitt wird auf einfache Weise ein Reflektor gebildet, wobei der paraboloidförmige Reflektorabschnitt wesentlich zur Erzeugung der erforderlichen Lichtstärke beiträgt und der Freiflächen-Reflektorabschnitt derart geformt ist, daß die Leuchte in einer beliebig geformten Aussparung eines Fahrzeugkörpers eingesetzt werden kann. Weiterhin wird durch die Ausbildung von parallelen Erhebungen auf dem Freiflächen-Reflektorabschnitt und dem paraboloidförmigen Reflektorabschnitt einerseits und senkrecht zu diesen stehenden parallelen Erhebungen auf der Lichtscheibe andererseits eine ästhetische Wirkung der Leuchte erzeugt.The combination of a paraboloidal reflector portion with an open space reflector portion a reflector is formed in a simple manner, the parabolic shaped reflector portion substantially contributes to the generation of the required light intensity and the free surface reflector portion is shaped such that the lamp used in an arbitrarily shaped recess of a vehicle body can be. Furthermore, an aesthetic effect of the lamp is generated by the formation of parallel elevations on the open space reflector portion and the parabolic reflector portion on the one hand and perpendicular to these stationary parallel elevations on the lens.
Nach einer besonderen Ausführungsform der Erfindung sind die Erhebungen des zweiten Reflektorabschnitts und der Lichtscheibe als konvexförmige Zylinderflächen ausgebildet, die herstellungstechnisch einfach auf den Reflektorabschnitt aufgebracht werden können. Der Radius der Zylinderflächen ist derart bestimmt, daß die Zylinderflächen im Querschnitt einen Abschnitt mit einem spitzen Winkel bilden, so daß die gesamte Zylinderfläche zur Reflexion des von der Lichtquelle ausgesandten Lichtes beitragen kann.According to a particular embodiment of the invention, the elevations of the second reflector portion and the lens are formed as convex cylindrical surfaces that can be easily applied to the reflector section manufacturing technology. The radius of the cylindrical surfaces is determined such that the cylindrical surfaces form a section at an acute angle in cross-section so that the entire cylindrical surface can contribute to the reflection of the light emitted by the light source.
Nach einer Weiterbildung der Erfindung sind die Erhebungen des zweiten Reflektorabschnitts und die Erhebungen der Lichtscheibe um jeweils zu den benachbarten Erhebungen des zweiten Reflektorabschnitts bzw. der Lichtscheibe um den gleichen Betrag beabstandet, so daß die Leuchte ein matrix- oder gitterförmiges Aussehen hat, so daß eine gute ästhetische Wirkung erzielt wird.According to a development of the invention, the elevations of the second reflector portion and the elevations of the lens are each spaced by the same amount to the adjacent elevations of the second reflector portion or the lens, so that the lamp has a matrix or lattice-like appearance, so that a good aesthetic effect is achieved.
Nach einer Ausgestaltung der Erfindung ist der Reflektor als langgestreckter Reflektor ausgebildet, wobei der zweite Reflektorabschnitt in Längsrichtung im wesentlichen eben und in Querrichtung paraboloidförmig ausgebildet ist. Hierdurch kann eine langgestreckte Leuchte mit guter Lichtausbeute in Längsrichtung geschaffen werden.According to one embodiment of the invention, the reflector is designed as an elongated reflector, wherein the second reflector portion is formed in the longitudinal direction substantially planar and paraboloidal in the transverse direction. As a result, an elongated luminaire with good light output in the longitudinal direction can be created.
Ein Ausführungsbeispiel der Erfindung wird nachfolgend anhand der Zeichnungen näher erläutert.An embodiment of the invention will be explained in more detail with reference to the drawings.
Es zeigen
- Fig. 1:
- einen Längsschnitt durch eine Leuchte und
- Fig. 2:
- einen Querschnitt entlang der Linie II-II aus Fig. 1.
- Fig. 1:
- a longitudinal section through a lamp and
- Fig. 2:
- a cross section along the line II-II of Fig. 1st
Fig. 1 und 2 zeigen den schematischen Aufbau einer Blinkleuchte. Alternativ kann die erfindungsgemäße Leuchte auch als ein Teil einer Mehrkammer-Heckleuchte für Kraftfahrzeuge ausgebildet sein, wobei sie als Bremsleuchte und/oder Blinkleuchte eingesetzt wird. Alternativ ist die erfindungsgemäße Leuchte auch als Schlußleuchte, insbesondere Nebelschluß-oder Rückfahrschlußleuchte anwendbar.Fig. 1 and 2 show the schematic structure of a turn signal. Alternatively, the luminaire according to the invention can also be designed as part of a multi-chamber tail light for motor vehicles, being used as a stop lamp and / or indicator light. Alternatively, the lamp according to the invention is also applicable as a tail lamp, in particular rear fog or rear fog light.
Eine in Fig. 1 und Fig. 2 dargestellte Blinkleuchte weist einen langgestreckten Reflektor (1) auf, der durch eine Lichtscheibe (2) abgeschlossen ist. Die Blinkleuchte weist eine vordere umlaufende Anlagefläche auf, auf der ein korrespondierender Rand der Lichtscheibe (2) aufliegt. Die Anlagefläche ist ovalförmig ausgebildet und in eine entsprechende Aussparung des Fahrzeugkörpers eingefaßt, wobei sich lange Seiten (5) des Reflektors (1) im wesentlichen in horizontaler Richtung erstrecken. Zwischen den langen Seiten (5) erstreckt sich ein Reflexionsbereich (6), der einen paraboloidförmigen ersten Reflektorabschnitt (7) und einen zweiten Reflektorabschnitt (8) umfaßt. Zwischen den Reflektorabschnitten (7) und (8) ist eine Fassung (9) vorgesehen, in der eine Glühlampe (10) gehalten ist.A flashing light shown in Fig. 1 and Fig. 2 comprises an elongate reflector (1) which is closed by a lens (2). The flashing light has a front circumferential bearing surface, on which a corresponding edge of the lens (2) rests. The contact surface is oval-shaped and enclosed in a corresponding recess of the vehicle body, wherein long sides (5) of the reflector (1) extend substantially in the horizontal direction. Between the long sides (5) extends a reflection area (6) which comprises a paraboloid-shaped first reflector section (7) and a second reflector section (8). Between the reflector sections (7) and (8) a socket (9) is provided, in which an incandescent lamp (10) is held.
Der zweite Reflektorabschnitt (8) ist als Freiflächen-Reflektorabschnitt ausgebildet, wobei er in horizontaler Richtung im wesentlichen eben und in vertikaler Richtung paraboloidförmig ausgebildet ist. Der zweite Reflektorabschnitt (8) bildet in horizontaler Richtung zu der optischen Achse der Glühlampe (10) einen spitzen Winkel, so daß auch im äußeren Bereich keine Schattenbildung erfolgt, sondern die gesamte Oberfläche des zweiten Reflektorabschnitts (8) von der Glühlampe (10) erfaßt und beleuchtet wird. Die Reflektorfläche des zweiten Reflektorabschnitts (8) wird gebildet durch nebeneinander angeordnete Erhebungen, die als konvexförmige Zylinderflächen (11) ausgebildet sind. Die Zylinderflächen (11) erstrecken sich jeweils von der oberen Seite (5) bis zur gegenüberliegenden unteren Seite (5). Die Zylinderflächen (11) sind jeweils symmetrisch bezüglich einer Längsmittelebene (M) der jeweiligen Erhebung ausgebildet. Die Radien der inneren Zylinderflächen (11) sind derart groß gewählt, daß die Reflexionsoberfläche der Zylinderflächen (11) im Querschnitt jeweils einen Sektor mit einem spitzen Winkel bildet. Zu dem äußeren Rand der Blinkleuchte hin wird die Wölbung der Zylinderflächen (11) geringer, d.h. der Radius der Zylinderflächen (11) wird größer, wobei die äußeren Zylinderflächen (11) im Querschnitt jeweils einen Sektor mit einem stumpfen Winkel bilden, so daß im äußeren Bereich des Reflektorabschnitts (8) eine geringere Streuung erzeugt wird und damit eine homogene Lichtverteilung gewährleistet ist. Im übrigen ist der Radius der Zylinderflächen (11) an die Erfordernisse der vorgegebenen Lichtverteilung anzupassen. Die Breite der aneinandergrenzenden Zylinderflächen (11) beträgt etwa 6 mm. Die Breite der Zylinderflächen (11) kann alternativ auch größer oder kleiner gewählt sein.The second reflector section (8) is designed as an open-space reflector section, wherein it is paraboloidal in the horizontal direction substantially planar and in the vertical direction. The second reflector portion (8) forms in the horizontal direction to the optical axis of the incandescent lamp (10) an acute angle, so that no shadowing occurs in the outer region, but the entire surface of the second reflector portion (8) of the incandescent lamp (10) detected and lit up. The reflector surface of the second reflector portion (8) is formed by juxtaposed elevations, which are formed as convex cylindrical surfaces (11). The cylindrical surfaces (11) each extend from the upper side (5) to the opposite lower side (5). The cylindrical surfaces (11) are each formed symmetrically with respect to a longitudinal center plane (M) of the respective elevation. The radii of the inner cylindrical surfaces (11) are chosen so large that the reflection surface of the cylindrical surfaces (11) in cross section in each case forms a sector with an acute angle. Towards the outer edge of the turn signal, the curvature of the cylindrical surfaces (11) becomes smaller, ie the radius of the cylindrical surfaces (11) becomes larger, the outer cylindrical surfaces (11) forming in each case a sector with an obtuse angle in cross-section, so that in the outer Area of the reflector portion (8) a smaller scattering is generated and thus a homogeneous light distribution is ensured. Moreover, the radius of the cylindrical surfaces (11) to adapt to the requirements of the given light distribution. The width of the adjacent cylindrical surfaces (11) is about 6 mm. The width of the cylindrical surfaces (11) may alternatively be chosen larger or smaller.
Der erste Reflektorabschnitt (7) weist parallele Erhebungen (12) auf, die sich jeweils als bogenförmige Zylinderflächen zwischen den Seiten (5) erstrecken und einen solchen Abstand voneinander aufweisen, daß die Begrenzungslinien der Erhebungen (12) in Vorderansicht des Gehäuses (1) den gleichen Abstand aufweisen wie die Zylinderflächen (11) des zweiten Reflektorabschnitts (8). Vorzugsweise sind die Erhebungen (12) ebenfalls als Zylinderflächen ausgebildet. Nach einer alternativen Ausführungsform können die Erhebungen (11) des zweiten Reflektorabschnitts (8) und die Erhebungen (12) des ersten Reflektorabschnitts (7) auch im Querschnitt tropfenförmig gestaltet sein. Wichtig dabei ist, daß im Zusammenwirken mit der Formgebung der Reflektorabschnitte (7, 8) die Tropfenform so gewählt ist, daß keine Schattenbildung der von der Glühlampe (10) emittierten Lichtstrahlen an den Erhebungen erfolgt.The first reflector section (7) has parallel elevations (12) which each extend as arcuate cylindrical surfaces between the sides (5) and have such a distance from one another that the boundary lines of the elevations (12) in front view of the housing (1) have the same distance as the cylindrical surfaces (11) of the second reflector portion (8). Preferably, the elevations (12) are also formed as cylindrical surfaces. According to an alternative embodiment, the elevations (11) of the second reflector section (8) and the elevations (12) of the first reflector section (7) may also be drop-shaped in cross-section. It is important that, in cooperation with the shaping of the reflector sections (7, 8) the drop shape is chosen so that no shadowing of the light bulb (10) emitted light rays at the surveys.
Die Lichtscheibe (2) weist eine Reihe von nach innen weisenden parallelen Erhebungen als Zylinderflächen (13) auf, deren Breite und Wölbung mit denen der Zylinderflächen (11) des zweiten Reflektorabschnitts (8) entsprechen. Die Zylinderflächen (13) erstrecken sich im wesentlichen senkrecht zu den Zylinderflächen (11) und den Erhebungen (12) des zweiten Reflektorabschnitts bzw. des ersten Reflektorabschnitts (7). Durch Zusammenwirken der Zylinderflächen (11, 13), bzw. der Erhebungen (12) erhält die Blinkleuchte in Vorderansicht ein gitterförmiges bzw. matrixförmiges Erscheinungsbild, wobei die einzelnen Gitterelemente die gleiche quadratische Form besitzen. Alternativ können zur Bildung dieser Gitterstruktur die Zylinderflächen (11) bzw. Erhebungen (12) sich in horizontaler Richtung erstrecken, wohingegen die Zylinderflächen (13) der Lichtscheibe (2) in vertikaler Richtung verlaufen.The lens (2) has a series of inwardly pointing parallel elevations as cylindrical surfaces (13) whose width and curvature with those of the cylindrical surfaces (11) of the second reflector portion (8) correspond. The cylindrical surfaces (13) extend substantially perpendicular to the cylindrical surfaces (11) and the elevations (12) of the second reflector section and the first reflector section (7). By interaction of the cylindrical surfaces (11, 13), or the elevations (12) receives the flashing light in front view of a lattice-shaped or matrix-like appearance, the individual grid elements have the same square shape. Alternatively, to form this lattice structure, the cylindrical surfaces (11) or elevations (12) may extend in the horizontal direction, whereas the cylindrical surfaces (13) of the light disc (2) extend in the vertical direction.
Alternativ können die Zylinderflächen (11, 13) einerseits und die Erhebungen (12) andererseits eine solche unterschiedliche Breite aufweisen, daß die Leuchte in Vorderansicht ein rechteckförmiges Erscheinungsbild hat. Der Abstand der Zylinderflächen (13) zu benachbarten Zylinderflächen (13) beträgt beispielsweise 8 mm, und der Abstand der Zylinderflächen (11) zueinander beispielsweise 6 mm.Alternatively, the cylindrical surfaces (11, 13) on the one hand and the elevations (12) on the other hand have such a different width that the lamp in front view has a rectangular appearance. The distance of the cylindrical surfaces (13) to adjacent cylindrical surfaces (13) is for example 8 mm, and the distance of the cylindrical surfaces (11) to each other, for example, 6 mm.
Da die Zylinderflächen (11, 12, 13) zur Erzeugung der gitterförmigen Struktur unstetig zu den benachbarten Zylinderflächen (11, 12, 13) angeordnet sind, kann der Reflektor (1) eine fast beliebige Form aufweisen. Alternativ können die Zylinderflächen sich auch konkavförmig erstrecken. Der Reflektor (1) ist aus einem PC- und ABS-Kunststoffmaterial hergestellt und weist eine reflektierende Beschichtung auf. Die Lichtscheibe (2) ist aus einem transparenten PMMA-Kunststoffmaterial hergestellt.Since the cylindrical surfaces (11, 12, 13) for forming the latticed structure are arranged discontinuously to the adjacent cylindrical surfaces (11, 12, 13), the reflector (1) can have an almost arbitrary shape. Alternatively, the cylindrical surfaces may also extend concave. The reflector (1) is made of a PC and ABS plastic material and has a reflective coating. The lens (2) is made of a transparent PMMA plastic material.
Claims (8)
- Vehicle lamp with a reflector that deflects the light beams emitted by a light source and has a reflector surface with ridges, and a lens that covers the reflector and has parallel ridges pointing towards the reflector, characterized in that the reflector (1) comprises a first, paraboloidal, reflector-portion (7) and a second, free-form, reflector-portion (8), the first, paraboloidal, reflector-portion (7) and the second reflector-portion (8) a series of parallel ridges (11) that extend perpendicularly to the ridges (13) of the lens (2).
- Lamp according to Claim 1, characterized in that the ridges (12) of the second reflector-portion (8) and of the first reflector-portion (7) and also the ridges (13) of the lens (2) are configured as convex cylindrical surfaces.
- Lamp according to Claim 1 or Claim 2, characterized in that the first reflector-portion (7) has ridges (12) that are configured as cylindrical surfaces and extend in an arc to an edge of the casing (1), so that the lamp, in frontal view, creates a regular grid-like effect.
- Lamp according to either of Claims 2 and 3, characterized in that the cylindrical surfaces (12,13) are disposed symmetrically with respect to a longitudinal midplane (M) of the respective cylindrical surface (12,13).
- Lamp according to either of Claims 3 and 4, characterized in that the second reflector-portion (8) extends at an acute angle to an optical axis of the light source (10), the radius of the inner cylindrical surfaces (11) being chosen so that the inner cylindrical surfaces (11) form, in cross-section, a sector with an acute angle, and the radius of the outer cylindrical surfaces (11) being chosen so that the outer cylindrical surfaces (11) form, in cross-section, a sector with an obtuse angle.
- Lamp according to any one of Claims 1 to 5, characterized in that the spacing of the ridges 13) from adjacent ridges (13) of the second reflector-portion (8) and/or lens (2) is constant.
- Lamp according to any one of Claims 1 to 6, characterized in that the ridges (11) of the second reflector-portion (8) and the ridges (13) of the lens (2) have the same spacing from adjacent ridges (13).
- Lamp according to any one of Claims 1 to 7, characterized in that the second reflector-portion (8) is paraboloidal in one direction and substantially flat in an opposite direction.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19727982 | 1997-07-01 | ||
| DE19727982A DE19727982A1 (en) | 1997-07-01 | 1997-07-01 | Light for vehicles |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0889284A2 EP0889284A2 (en) | 1999-01-07 |
| EP0889284A3 EP0889284A3 (en) | 2000-12-20 |
| EP0889284B1 true EP0889284B1 (en) | 2006-09-27 |
Family
ID=7834253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP98110622A Expired - Lifetime EP0889284B1 (en) | 1997-07-01 | 1998-06-10 | Vehicle light |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0889284B1 (en) |
| DE (2) | DE19727982A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19940055C1 (en) * | 1999-08-24 | 2001-04-05 | Siemens Ag | Dosing valve |
| JP3996001B2 (en) * | 2002-07-10 | 2007-10-24 | 本田技研工業株式会社 | Vehicle signal lights |
| FR2874994B1 (en) * | 2004-09-07 | 2006-11-24 | Valeo Vision Sa | BAND-SHAPED LIGHTING OR SIGNALING PROJECTOR COMPRISING A PLANAR MIRROR |
| DE102012017262A1 (en) | 2012-08-31 | 2014-03-06 | Volkswagen Aktiengesellschaft | Lighting device e.g. rear light, for functioning as e.g. stop light in motor car, has rear stepped region formed within reflecting surface in reflector, where light emission from light source is not radiated through stepped region |
| CN111457316B (en) * | 2020-05-08 | 2021-03-26 | 重庆秦川三立车灯有限公司 | Vehicle lamp light source and manufacturing method thereof |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3239754A1 (en) * | 1982-10-27 | 1984-05-03 | Robert Bosch Gmbh, 7000 Stuttgart | Signalling lamp, in particular front flashing lamp, for motor vehicles |
| DE3245141C2 (en) * | 1982-12-07 | 1994-09-22 | Bosch Gmbh Robert | Fog lights for motor vehicles |
| DE3322181C2 (en) * | 1983-06-21 | 1985-10-10 | Westfälische Metall Industrie KG Hueck & Co, 4780 Lippstadt | Lights for motor vehicles, in particular fog lights |
| JPS6081701A (en) * | 1983-10-11 | 1985-05-09 | 日産自動車株式会社 | Lamp implement for vehicle |
| JPH01115001A (en) * | 1987-10-28 | 1989-05-08 | Koito Mfg Co Ltd | Vehicle head light |
| FR2708081B1 (en) | 1993-07-20 | 1995-09-01 | Axo Scintex Cie Equip Automobi | Motor vehicle signaling light. |
| FR2727660A1 (en) * | 1994-12-06 | 1996-06-07 | Axo Scintex Cie Equip Automobi | TAIL LIGHTS OF MOTOR VEHICLES |
| DE19511165A1 (en) * | 1995-03-28 | 1996-10-02 | Teves Gmbh Alfred | Vehicle light |
| FR2736705B1 (en) * | 1995-07-12 | 1997-10-03 | Valeo Vision | DEPTH APPEARANCE LIGHT, LIKELY TO TRANSMIT A BEAM OF A DIFFERENT COLOR FROM THE SIGHT |
| JP3207087B2 (en) * | 1995-07-28 | 2001-09-10 | 株式会社小糸製作所 | Vehicle lighting |
| JP3185127B2 (en) * | 1995-07-28 | 2001-07-09 | 株式会社小糸製作所 | Vehicle lighting |
-
1997
- 1997-07-01 DE DE19727982A patent/DE19727982A1/en not_active Withdrawn
-
1998
- 1998-06-10 EP EP98110622A patent/EP0889284B1/en not_active Expired - Lifetime
- 1998-06-10 DE DE59813740T patent/DE59813740D1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE59813740D1 (en) | 2006-11-09 |
| EP0889284A3 (en) | 2000-12-20 |
| DE19727982A1 (en) | 1999-01-07 |
| EP0889284A2 (en) | 1999-01-07 |
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