EP1762777A2 - Vehicule lighting unit - Google Patents
Vehicule lighting unit Download PDFInfo
- Publication number
- EP1762777A2 EP1762777A2 EP06119632A EP06119632A EP1762777A2 EP 1762777 A2 EP1762777 A2 EP 1762777A2 EP 06119632 A EP06119632 A EP 06119632A EP 06119632 A EP06119632 A EP 06119632A EP 1762777 A2 EP1762777 A2 EP 1762777A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- lens
- light
- auxiliary lens
- lighting unit
- reflector
- 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.)
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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
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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
- F21S43/255—Filters
Definitions
- the invention relates to a lighting unit for motor vehicles with at least one light source, with a reflector associated with the light source, which parallelizes the light emitted by the light source in the light emission direction, with a reflector in the light emission direction upstream additional lens, which is a means for focusing the light and the other Means are assigned to the scattering of the light.
- a light unit for motor vehicles with a light source with a reflector and a cover
- the reflector has a plurality of reflector segments.
- the reflector segments are designed such that they each have a common segment center with maximum illumination intensity. Each segment center thus has a bright point of light, which gives the impression of a light emitting diode as a light source.
- the reflector surfaces arranged around the segment center of the reflector segment are designed such that a predetermined light distribution is generated.
- 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 the light emission direction.
- 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.
- Object of the present invention is to develop a lighting unit for motor vehicles such that a modern LED styling with high brilliance and high luminous efficacy is achieved.
- the invention in connection with the preamble of claim 1, characterized in that the means for focusing the light comprises a plurality of distributed arranged lenses, each of which at least translucent cup-shaped small reflectors are assigned, and that surfaces of the small Reflectors are each aligned with the light source and / or the reflector.
- an additional lens is provided, which are associated with a plurality of small reflectors and the other to the same associated lenses on the one hand.
- the surfaces of the small reflectors are translucent on the one hand and aligned on the other hand to the light source and the downstream reflector.
- the location of the lens appears as the location of the light emitting diode (LED).
- the small reflectors appear as LED reflectors associated LED reflectors. Due to the fact that the additional lens is translucent, the partial light beam reflected by the reflector, which is not detected by the lens, can also be used for the light distribution.
- the formation of the small reflectors determines that LED appearance, wherein the outgoing of the surfaces scattering effect is significantly matched to the rear side entering parallel light to produce a predetermined light distribution.
- 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 additional 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.
- the lens has a Streulinsensegment that decouples the focused light directly forward in the light emission direction and laterally to the surfaces of the small reflectors.
- the scattered lens segment serves as a means of scattering the light.
- the lenses contribute significantly to the LED appearance since they have a higher luminance than the remaining area of the auxiliary lens by collecting and focusing the light and its relatively small area.
- this can emulate a considerably brighter light-emitting diode in a light-emitting diode system.
- 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 light unit 1 according to a first embodiment according to FIGS. 1 to 3c comprises, in addition to a light source 2 and a reflector 3 assigned to the light source 2, a first auxiliary light disc 5 and a second auxiliary light disc 6 arranged upstream of the reflector 3 in the light emission direction 4.
- 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. As can be seen from FIG. 1, the second auxiliary lens 6 abuts directly on the first auxiliary lens 5, wherein lenses 10 are arranged on the second auxiliary lens 6 in the region of the through openings 8 of the first auxiliary lens 5.
- 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.
- a lighting unit 20 may be provided, in which a first additional light disk 21 is arranged at a distance from a second auxiliary light disk 22.
- the same components or component functions of the first embodiment and the second embodiment are provided with the same reference numerals.
- 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.
- the light units 1, 20 each further comprise a cover plate, not shown, which is in the light emission direction 4 in front of the first auxiliary lens 5 - preferably spaced - is arranged.
- the auxiliary lens 5 can be made clear, translucent or opaque in a predetermined color, preferably the color of the intermediate lens 5 does not match the intended color of the signal function.
- the intermediate lens 5 may be colored red, for example, so that the lamp has a red appearance in the non-operating state of the flashing light function or the reversing light function.
- the additional lens 5 may be provided on the front and / or back with a mirrored coating.
- the first auxiliary lens 5 and the second auxiliary lens 6 can also be connected to each other by a two-component method, for example by gating the first auxiliary lens 5 to the second auxiliary lens 6 by means of a two-component injection molding.
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- 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)
Abstract
Description
Die Erfindung betrifft eine Leuchteinheit für Kraftfahrzeuge mit mindestens einer Lichtquelle, mit einem der Lichtquelle zugeordneten Reflektor, der das von der Lichtquelle ausgesandte Licht in Lichtabstrahlrichtung parallelisiert, mit einer dem Reflektor in Lichtabstrahlrichtung vorgelagerten Zusatzlichtscheibe, der zum einen Mittel zur Bündelung des Lichtes und zum anderen Mittel zur Streuung des Lichtes zugeordnet sind.The invention relates to a lighting unit for motor vehicles with at least one light source, with a reflector associated with the light source, which parallelizes the light emitted by the light source in the light emission direction, with a reflector in the light emission direction upstream additional lens, which is a means for focusing the light and the other Means are assigned to the scattering of the light.
Aus der
Aus der
Aufgabe der vorliegenden Erfindung ist es, eine Leuchteinheit für Kraftfahrzeuge derart weiterzubilden, dass ein modernes LED-Styling mit hoher Brillanz und hoher Lichtausbeute erzielt wird.Object of the present invention is to develop a lighting unit for motor vehicles such that a modern LED styling with high brilliance and high luminous efficacy is achieved.
Zur Lösung dieser Aufgabe ist die Erfindung in Verbindung mit dem Oberbegriff des Patenanspruchs 1 dadurch gekennzeichnet, dass die Mittel zur Bündelung des Lichtes eine Mehrzahl von verteilt angeordneten Linsen umfasst, denen jeweils zumindest durchscheinende topfförmige Klein-Reflektoren zugeordnet sind, und dass Flächen der Klein-Reflektoren jeweils auf die Lichtquelle und/oder den Reflektor ausgerichtet sind.To achieve this object, the invention in connection with the preamble of claim 1, characterized in that the means for focusing the light comprises a plurality of distributed arranged lenses, each of which at least translucent cup-shaped small reflectors are assigned, and that surfaces of the small Reflectors are each aligned with the light source and / or the reflector.
Nach der Erfindung ist eine Zusatzlichtscheibe vorgesehen, der zum einen eine Mehrzahl von Klein-Reflektoren und zum anderen zu denselben zugehörige Linsen zugeordnet sind. Die Flächen der Klein-Reflektoren sind zum einen durchscheinend ausgebildet und zum anderen auf die Lichtquelle und den nachgelagerten Reflektor ausgerichtet. Dabei erscheint der Ort der Linse als der Ort der Leuchtdiode (LED). Die Klein-Reflektoren erscheinen als den Leuchtdioden zugeordnete LED-Reflektoren. Dadurch, dass die Zusatzlichtscheibe durchscheinend ausgebildet ist, kann auch das von dem Reflektor reflektierte Teillichtbündel, das nicht durch die Linse erfasst wird, für die Lichtverteilung genutzt werden. Die Ausbildung der Klein-Reflektoren bestimmt das LED-Erscheinungsbild, wobei die von den Flächen ausgehende Streuwirkung maßgeblich auf das rückseitig eintretende parallele Licht abgestimmt ist zur Erzeugung einer vorgegebenen Lichtverteilung. Die Flächen der Klein-Reflektoren sind somit nicht im Wesentlichen auf das von den Linsen ausgekoppelte Licht abgestimmt. Vorteilhaft ermöglicht die erfindungsgemäße Leuchteinheit ein einfach herstellbares LED-Erscheinungsbild, obwohl vorzugsweise lediglich eine einzige Lichtquelle in einem hinteren Bereich der Leuchteinheit genutzt wird. Dadurch, dass auch ein von dem Reflektor rückseitig der Klein-Reflektoren eintretendes paralleles Lichtbündel genutzt wird, ergibt sich eine vergrößerte Lichtausbeute.According to the invention, an additional lens is provided, which are associated with a plurality of small reflectors and the other to the same associated lenses on the one hand. The surfaces of the small reflectors are translucent on the one hand and aligned on the other hand to the light source and the downstream reflector. The location of the lens appears as the location of the light emitting diode (LED). The small reflectors appear as LED reflectors associated LED reflectors. Due to the fact that the additional lens is translucent, the partial light beam reflected by the reflector, which is not detected by the lens, can also be used for the light distribution. The formation of the small reflectors determines that LED appearance, wherein the outgoing of the surfaces scattering effect is significantly matched to the rear side entering parallel light to produce a predetermined light distribution. The surfaces of the small reflectors are thus not substantially matched to the light coupled out by the lenses. Advantageously, 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. The fact that a parallel light beam entering from the reflector on the back side of the small reflectors also makes use of an increased luminous efficacy.
Nach einer bevorzugten Ausführungsform ist eine erste Zusatzlichtscheibe mit einer Mehrzahl von Klein-Reflektoren und in einem hinteren Bereich derselben angeordneten Durchgangsöffnungen vorgesehen. Die Flächen der Klein-Reflektoren dienen hierbei als Mittel zur Streuung des Lichtes. Ferner ist eine zweite Zusatzlichtscheibe vorgesehen, die in Lichtabstrahlrichtung hinter der ersten Zusatzlichtscheibe angeordnet ist und in einem zu den Durchgangsöffnungen der ersten Zusatzlichtscheibe fluchtenden Bereichen eine Linse aufweist. Die Linse weist als Mittel zur Bündelung des Lichtes ein Sammellinsensegment auf, das auf einer dem Reflektor zugewandten Rückseite der zweiten Zusatzlichtscheibe abragt. Vorteilhaft kann hierdurch ein parallelisiertes Teillichtbündel auf die Durchgangsöffnung der ersten Zusatzlichtscheibe fokussiert werden. Darüber hinaus weist die Linse ein Streulinsensegment auf, das das gebündelte Licht direkt nach vorne in Lichtabstrahlrichtung und seitlich zu den Flächen der Klein-Reflektoren auskoppelt. Das Streulinsensegment dient als Mittel zur Streuung des Lichtes. Die Linsen tragen wesentlich zum LED-Erscheinungsbild bei, da sie durch das Sammeln und Fokussieren des Lichtes und ihrer relativ kleinen Fläche eine höhere Leuchtdichte aufweisen als die restliche Fläche der Zusatzlichtscheibe. Vorteilhaft kann hierdurch eine erheblich hellere Leuchtdiode in einem Leuchtdioden-System nachgebildet werden.According to a preferred embodiment, 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. Furthermore, a second additional 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. Advantageously, a parallelized partial light bundle can thereby be focused onto the passage opening of the first additional optical disc. In addition, the lens has a Streulinsensegment that decouples the focused light directly forward in the light emission direction and laterally to the surfaces of the small reflectors. The scattered lens segment serves as a means of scattering the light. The lenses contribute significantly to the LED appearance since they have a higher luminance than the remaining area of the auxiliary lens by collecting and focusing the light and its relatively small area. Advantageously, this can emulate a considerably brighter light-emitting diode in a light-emitting diode system.
Weitere Vorteile der Erfindung ergeben sich aus den weiteren Unteransprüchen.Further advantages of the invention will become apparent from the further subclaims.
Ausführungsbeispiele der Erfindung werden nachfolgend anhand der Zeichnungen näher erläutert.Embodiments of the invention are explained below with reference to the drawings.
Es zeigen:
- Figur 1
- einen Horizontalschnitt durch eine Leuchteinheit nach einer ersten Ausführungsform,
Figur 2- eine perspektivische Vorderansicht einer ersten Zusatzlichtscheibe der Leuchteinheit,
- Figur 3a
- eine perspektivische Vorderansicht einer zweiten Zusatzlichtscheibe der Leuchteinheit mit einer Mehrzahl von verteilt angeordneten Streulinsensegmenten,
- Figur 3b
- eine perspektivische Seitenansicht der zweiten Zusatzlichtscheibe,
- Figur 3c
- eine perspektivische Rückansicht der zweiten Zusatzlichtscheibe mit einer Mehrzahl von verteilt angeordneten Sammellinsensegmenten und
- Figur 4
- einen Horizontalschnitt durch eine Leuchteinheit nach einer zweiten Ausführungsform.
- FIG. 1
- a horizontal section through a lighting unit according to a first embodiment,
- FIG. 2
- a perspective front view of a first auxiliary lens of the lighting unit,
- FIG. 3a
- a perspective front view of a second auxiliary lens of the lighting unit with a plurality of distributed scattered lens segments,
- FIG. 3b
- a perspective side view of the second auxiliary lens,
- Figure 3c
- a rear perspective view of the second auxiliary lens with a plurality of distributed collecting lens segments and
- FIG. 4
- a horizontal section through a lighting unit according to a second embodiment.
Eine erfindungsgemäße Leuchteinheit für Kraftfahrzeuge kann als Heckleuchte, Scheinwerfer oder Zusatzbremsleuchte eingesetzt werden. Die Leuchteinheit kann beispielsweise als Brems-, Blink-, Nebelschluss-, Rückfahr-, Schluss- oder Positionslicht eingesetzt werden.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.
Eine Leuchteinheit 1 nach einer ersten Ausführungsform gemäß den Figuren 1 bis 3c besteht neben einer Lichtquelle 2 und einem der Lichtquelle 2 zugeordneten Reflektor 3 aus einer dem Reflektor 3 in Lichtabstrahlrichtung 4 vorgelagerten ersten Zusatzlichtscheibe 5 und einer zweiten Zusatzlichtscheibe 6.A light unit 1 according to a first embodiment according to FIGS. 1 to 3c comprises, in addition to a
Die erste Zusatzlichtscheibe 5 weist eine Mehrzahl von verteilt angeordneten topfförmigen Klein-Reflektoren 7 auf, die jeweils in einem rückwärtigen Bereich Durchgangsöffnungen 8 aufweisen. Die Flächen der Klein-Reflektoren 7 werden durch segmentartige Optikflächen 9 gebildet, die im Wesentlichen das von dem Reflektor 3 in Lichtabstrahlrichtung 4 parallelisierte Teillichtbündel, das rückseitig auf die Fläche des Klein-Reflektors 7 trifft entsprechend einer vorgegebenen Lichtverteilung streut. Die Optikflächen 7 sind vorzugsweise als konkave Optikflächen ausgebildet, die das Erscheinungsbild eines LED-Reflektors abgeben. Die konkaven Optikflächen 9 können parabelförmig, kugelförmig oder als frei gekrümmte Flächen ausgebildet sein. Die Form der Optikflächen 9 ist insbesondere abhängig von den Einbaubedingungen, wie beispielsweise dem vorhandenen Bauraum und der Bautiefe bzw. von dem gewünschten Styling der Leuchteinheit.The first
Die Optikflächen 9 des Klein-Reflektors 7 können klar oder mit einem verspiegelten Überzug versehen sein. Die Schichtdicke des durch Bedampfung hergestellten Überzugs ist derart gewählt, dass eine Durchlässigkeit des von dem Reflektor 3 reflektierten Lichtes gegeben ist. Die gesamte Fläche der ersten Zusatzlichtscheibe 5 wird daher ausgeleuchtet, so dass eine Mindestleuchtfläche gegeben ist. In Folge der quasi vollständigen Durchleuchtung der ersten Zusatzlichtscheibe 5 ergibt sich ein realistisches LED-Erscheinungsbild der Leuchteinheit 1. Vorzugsweise ist die erste Zusatzlichtscheibe 5 aus einem glasklaren, transparenten Kunststoffmaterial hergestellt, das gegebenenfalls mit einem durchscheinenden oder opaken Material beschichtet ist.The
Die zweite Zusatzlichtscheibe 6 ist zwischen dem Reflektor 3 und der ersten Zusatzlichtscheibe 5 angeordnet. Wie aus Figur 1 ersichtlich ist, liegt die zweite Zusatzlichtscheibe 6 unmittelbar an der ersten Zusatzlichtscheibe 5 an, wobei im Bereich der Durchgangsöffnungen 8 der ersten Zusatzlichtscheibe 5 Linsen 10 an der zweiten Zusatzlichtscheibe 6 angeordnet sind. Die Linsen 10 sind einstückig mit der zweiten Zusatzlichtscheibe 6 verbunden und weisen jeweils zum einen auf einer der Lichtquelle 2 zugewandten Seite ein Sammellinsensegment 11 auf, das von einer Rückseite 12 der zweiten Zusatzlichtscheibe 6 abragt. Das Sammellinsensegment 11 dient zur Bündelung eines von dem Reflektor 3 parallelisierten Teillichtbündel L, das auf die kugelförmige Einkoppelfläche des Sammellinsensegmentes 11 trifft. Das Sammellinsenelement 11 weist eine Breite b1 auf, die größer ist als eine Breite b2 der Durchgangsöffnung 8 der ersten Zusatzlichtscheibe 5. Das Sammellinsensegment 11 dient zum Durchlenken und Fokussieren des Teillichtbündels 13 in Richtung eines Streulinsensegmentes 14 der Linse 10, das von einer Vorderseite 15 der zweiten Zusatzlichtscheibe 6 entgegen der Lichtquelle 2 abragt. Das Streulichtsegment 14 ist domförmig ausgebildet und weist eine Breite auf, die kleiner ist als die Breite b2 der Durchgangsöffnung 8. Auf diese Weise ist das Streulinsensegment 14 in die Durchgangsöffnung 8 eingesteckt ausgebildet, wobei ein vorderer Teil des Streulinsensegmentes 14 aus der Durchgangsöffnung 8 herausragt. Das Streulinsensegment 14 bewirkt, dass ein relativ großer Lichtanteil L1 des in die Linse 10 eingekoppelten Lichtes L direkt in Lichtabstrahlrichtung 4 entsprechend einer vorgegebenen Lichtverteilung ausgekoppelt wird. Ferner bewirkt das Streulinsensegment 14, dass ein kleiner Lichtanteil L2 des Teillichtbündels L seitlich in Richtung der Optikflächen 9 des jeweils zugeordneten Klein-Reflektors 7 ausgekoppelt wird. Durch den relativ großen Lichtanteil L1, der direkt abgestrahlt wird, weist die Linse 10 im Vergleich zu den weiteren Flächenbereichen der ersten Zusatzlichtscheibe 5 eine relativ hohe Leuchtdichte auf, so dass hierdurch die relativ hellen Leuchtdioden (LEDs) nachgebildet werden können.The second
Das Streulinsensegment 14 dient als Mittel zur Streuung des von dem Reflektor 3 in Lichtabstrahlrichtung 4 reflektierten Teillichtbündels L. Die Optikflächen 9 der Klein-Reflektoren 7 dienen ebenfalls als Mittel zur Streuung des weiteren, vom Reflektor 3 in Lichtabstrahlrichtung 4 abgestrahlten Teillichtbündels L. Das Sammellinsensegment 11 dient als Mittel zum Sammeln des von dem Reflektor 3 nach vorne abgegebenen Teillichtbündels L.The scattering
Die zweite Zusatzlichtscheibe 6 kann glasklar oder farbig (z.B. rot oder gelb) ausgeführt sein. Die zweite Zusatzlichtscheibe 6 kann somit die Signalfarbe der Leuchteinheit 1 vorgeben. Bei einer glasklaren Ausführung der zweiten Zusatzlichtscheibe 6 ist eine farbige Lichtquelle 2 (farbige Glühlampe) oder ein zusätzlicher Farbfilter erforderlich.The second
Die erste Zusatzlichtscheibe 5 kann mit einer Mattierung versehen sein. Die Optikflächen 9 der Klein-Reflektoren 7 können beispielsweise durch eine Erodier- oder Ätzstruktur gebildet sein.The first
Nach einer zweiten Ausführungsform der Erfindung gemäß Figur 4 kann eine Leuchteinheit 20 vorgesehen sein, bei der eine erste Zusatzlichtscheibe 21 beabstandet zu einer zweiten Zusatzlichtscheibe 22 angeordnet ist. Gleiche Bauteile oder Bauteilfunktionen der ersten Ausführungsform und der zweiten Ausführungsform sind mit den gleichen Bezugszeichen versehen.According to a second embodiment of the invention according to FIG. 4, a
Die erste Zusatzlichtscheibe 21 weist - wie nach der ersten Ausführungsform - die Klein-Reflektoren 7 auf. In einem zentralen rückwärtigen Bereich der Klein-Reflektor 7 ist ein Streulinsensegment 23 angeformt, das die gleiche Funktion hat wie das Streulinsensegment 14 der Leuchteinheit 1.The first
Die zweite Zusatzlichtscheibe 22 ist an einer Vorderseite 24 eben ausgebildet. An einer Rückseite 25 der zweiten Zusatzlichtscheibe 22 erhebt sich fluchtend zu den Streulinsensegmenten 23 der ersten Zusatzlichtscheibe 21 ein Sammellinsensegment 26, das die gleiche Funktion hat wie das Sammellinsensegment 11 der ersten Leuchteinheit 1. Gemäß der zweiten Ausführungsform ist die ersten Zusatzlichtscheibe 21 glasklar ausgebildet, so dass das Streulinsensegment 23 einstückig mit der ersten Zusatzlichtscheibe 21 verbunden sein kann.The second
Die Leuchteinheiten 1, 20 weisen ferner jeweils eine nicht dargestellte Abdeckscheibe auf, die in Lichtabstrahlrichtung 4 vor der ersten Zusatzlichtscheibe 5 - vorzugsweise beabstandet - angeordnet ist.The
Nach einer weiteren Ausführungsform der Erfindung kann die Zusatzlichtscheibe 5 klarsichtig, durchscheinend oder opak in einer vorgegebenen Farbe ausgeführt sein, wobei vorzugsweise die Farbe der Zwischenlichtscheibe 5 nicht mit der vorgesehenen Farbe der Signalfunktion übereinstimmt. Somit kann die Zwischenlichtscheibe 5 beispielsweise rot eingefärbt sein, so dass die Leuchte im Nichtbetriebszustand der Blinklichtfunktion oder der Rückfahrlichtfunktion eine rote Erscheinung hat.According to a further embodiment of the invention, the
Beispielsweise kann die Zusatzlichtscheibe 5 vorderseitig und/oder rückseitig mit einem verspiegelten Überzug versehen sein.For example, the
Nach einer weiteren Ausführungsform der Erfindung können die erste Zusatzlichtscheibe 5 und die zweite Zusatzlichtscheibe 6 auch durch ein zweikomponentiges Verfahren miteinander verbunden sein, beispielsweise durch eine Anspritzung der ersten Zusatzlichtscheibe 5 an die zweite Zusatzlichtscheibe 6 mittels eines zweikomponentigen Spritzgießverfahrens.According to a further embodiment of the invention, the first
Claims (12)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005042576A DE102005042576A1 (en) | 2005-09-08 | 2005-09-08 | Lighting unit for motor vehicles |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1762777A2 true EP1762777A2 (en) | 2007-03-14 |
EP1762777A3 EP1762777A3 (en) | 2007-08-01 |
EP1762777B1 EP1762777B1 (en) | 2009-10-21 |
Family
ID=37428607
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06119632A Not-in-force EP1762777B1 (en) | 2005-09-08 | 2006-08-28 | Vehicule lighting unit |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1762777B1 (en) |
AT (1) | ATE446476T1 (en) |
DE (2) | DE102005042576A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2199663A1 (en) * | 2008-12-18 | 2010-06-23 | Peugeot Citroen Automobiles SA | Mask for the headlamp unit of an automobile with outgrowth for the extension of a reflector wall |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013222481A1 (en) | 2013-11-06 | 2015-05-07 | Zumtobel Lighting Gmbh | Optical element for a lamp, as well as light |
CN106016123B (en) * | 2016-06-29 | 2019-05-28 | 林灿鹏 | Outer cover Integral injection molding waterproof angel's eye fog lamp |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10156973A1 (en) | 2001-11-20 | 2003-05-28 | Hella Kg Hueck & Co | Vehicle light has reflector divided into number of segments in housing and central light source; individual segments are computed as decentralized optics and form segment reflectors |
DE10355210A1 (en) | 2003-11-26 | 2005-06-23 | Hella Kgaa Hueck & Co. | Tail lamp for motor vehicle, has one plate with focusing segments placed vertically to direction of main light ray from source, and another plate with light scattering points and concentration points, which allow passage of focused light |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1128924B (en) * | 1980-07-10 | 1986-06-04 | Iao Industrie Riunite Spa | OPTICAL GROUP FOR VEHICLES |
DE3336178A1 (en) * | 1983-10-05 | 1985-04-25 | Robert Bosch Gmbh, 7000 Stuttgart | Signalling lamp, in particular front flasher lamp, for motor vehicles |
DE4230963A1 (en) * | 1992-09-16 | 1994-03-17 | Teves Gmbh Alfred | Signal light |
FR2808247B1 (en) * | 2000-04-26 | 2002-08-23 | Axo Scintex Cie Equip Automobi | VEHICLE SIGNAL LIGHT |
BR0315005B1 (en) * | 2002-10-01 | 2017-11-14 | Truck Lite Co | "LED HEADLIGHT" |
FR2857434B1 (en) * | 2003-07-11 | 2006-09-29 | Valeo Vision | SIGNALING LIGHT FOR VEHICLE |
FR2863686B1 (en) * | 2003-12-10 | 2006-02-24 | Sagem | LED LIGHT EMITTING SIGNAL LIGHT |
-
2005
- 2005-09-08 DE DE102005042576A patent/DE102005042576A1/en not_active Withdrawn
-
2006
- 2006-08-28 EP EP06119632A patent/EP1762777B1/en not_active Not-in-force
- 2006-08-28 DE DE502006005164T patent/DE502006005164D1/en active Active
- 2006-08-28 AT AT06119632T patent/ATE446476T1/en active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10156973A1 (en) | 2001-11-20 | 2003-05-28 | Hella Kg Hueck & Co | Vehicle light has reflector divided into number of segments in housing and central light source; individual segments are computed as decentralized optics and form segment reflectors |
DE10355210A1 (en) | 2003-11-26 | 2005-06-23 | Hella Kgaa Hueck & Co. | Tail lamp for motor vehicle, has one plate with focusing segments placed vertically to direction of main light ray from source, and another plate with light scattering points and concentration points, which allow passage of focused light |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2199663A1 (en) * | 2008-12-18 | 2010-06-23 | Peugeot Citroen Automobiles SA | Mask for the headlamp unit of an automobile with outgrowth for the extension of a reflector wall |
FR2940204A1 (en) * | 2008-12-18 | 2010-06-25 | Peugeot Citroen Automobiles Sa | OPTICAL MOTOR VEHICLE BLOCK MASK WITH EXCROIDANCE FOR THE EXTENSION OF A REFLECTOR WALL |
Also Published As
Publication number | Publication date |
---|---|
EP1762777A3 (en) | 2007-08-01 |
ATE446476T1 (en) | 2009-11-15 |
DE502006005164D1 (en) | 2009-12-03 |
DE102005042576A1 (en) | 2007-03-15 |
EP1762777B1 (en) | 2009-10-21 |
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