DE4129094A1 - Signal lamp with extended light guides for motor vehicle - emits light from grouped multi-prismatic surfaces of parallel light guides into which light is coupled from LEDs - Google Patents
Signal lamp with extended light guides for motor vehicle - emits light from grouped multi-prismatic surfaces of parallel light guides into which light is coupled from LEDsInfo
- Publication number
- DE4129094A1 DE4129094A1 DE4129094A DE4129094A DE4129094A1 DE 4129094 A1 DE4129094 A1 DE 4129094A1 DE 4129094 A DE4129094 A DE 4129094A DE 4129094 A DE4129094 A DE 4129094A DE 4129094 A1 DE4129094 A1 DE 4129094A1
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- Germany
- Prior art keywords
- light
- led
- signal
- signal light
- emitting diodes
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/002—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
- B60Q1/2696—Mounting of devices using LEDs
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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
- F21S43/235—Light guides
- F21S43/236—Light guides characterised by the shape of the light guide
- F21S43/237—Light guides characterised by the shape of the light guide rod-shaped
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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
- F21S43/235—Light guides
- F21S43/242—Light guides characterised by the emission area
- F21S43/245—Light guides characterised by the emission area emitting light from one or more of its major surfaces
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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
- F21S43/235—Light guides
- F21S43/247—Light guides with a single light source being coupled into the light guide
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/0038—Linear indentations or grooves, e.g. arc-shaped grooves or meandering grooves, extending over the full length or width of the light guide
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0075—Arrangements of multiple light guides
- G02B6/0078—Side-by-side arrangements, e.g. for large area displays
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q2400/00—Special features or arrangements of exterior signal lamps for vehicles
- B60Q2400/20—Multi-color single source or LED matrix, e.g. yellow blinker and red brake lamp generated by single lamp
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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
- F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
- F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
- F21S43/14—Light emitting diodes [LED]
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/002—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces
- G02B6/0021—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces for housing at least a part of the light source, e.g. by forming holes or recesses
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
- G02B6/003—Lens or lenticular sheet or layer
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
- G02B6/0086—Positioning aspects
- G02B6/0088—Positioning aspects of the light guide or other optical sheets in the package
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F13/00—Illuminated signs; Luminous advertising
- G09F13/18—Edge-illuminated signs
- G09F2013/1804—Achieving homogeneous illumination
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
Description
Die Erfindung betrifft eine Signalleuchte für Kraftfahrzeuge mit einem Gehäuse und/oder einer Befestigungseinrichtung zum Ein- oder Anbau an oder in eine Kraftfahrzeugkarosserie, mit mindestens einer transparenten Abschlußscheibe und mit einer Anzahl Lichtquellen, die als Leuchtdioden ausgebildet sind.The invention relates to a signal lamp for Motor vehicles with a housing and / or one Fastening device for installation on or in a Motor vehicle body, with at least one transparent Lens and with a number of light sources, which as LEDs are formed.
Aus der deutschen Offenlegungsschrift DE 40 03 807 A1 ist eine Kraftfahrzeug-Warnleuchte bekannt, die Verwendung als eine Bremsleuchte findet. Die Signalleuchte weist ein Gehäuse und eine Befestigungseinrichtung auf, so daß die Signalleuchte an oder in eine Kraftfahrzeugkarosserie an- oder eingebaut werden kann. Das Gehäuse ist dabei derart ausgebildet, daß es in Lichtabstrahlrichtung eine transparente Abschlußscheibe aufweist. Zur Erzeugung von Licht sind in dem Gehäuse eine Anzahl Lichtquellen angeordnet, die als Leuchtdioden ausgebildet sind.From German published patent application DE 40 03 807 A1 a motor vehicle warning light known to use as finds a brake light. The signal lamp indicates Housing and a fastener so that the Signal light on or in a motor vehicle body or can be installed. The housing is like this trained that there is a in the light emission direction has transparent lens. To generate Light is a number of light sources in the housing arranged, which are designed as LEDs.
Bei der bekannten Ausführungsform erweist sich als nachteilig, daß zur Erzeugung einer großem ausreichenden Signal- und Warnwirkung der Signalleuchte eine große Anzahl Leuchtdioden verwendet werden muß. Dies führt zu einer kostenintensiven, aufwendigen Konstruktion, die zudem eine hohe Stromaufnahme aufweist. Als besonders nachteilig erweist sich bei der bekannten Ausführungsform der Signalleuchte, daß zur Erzielung einer gleichmäßigen Ausleuchtung der transparenten Abdeckscheibe die Leuchtdioden aufgrund der bekannten Abstrahlcharakteristik in einem geringen Abstand zueinander angeordnet werden müssen, so daß eine große Abstrahlfläche, die auch eine große Signal- und Warnwirkung aufweist, nur erreichbar ist, wenn eine große Anzahl Leuchtdioden in der Signalleuchte angeordnet sind, was die Kosten für die Herstellung und die Stromaufnahme erhöht.In the known embodiment proves to be disadvantageous that to produce a large sufficient Signal and warning effect of the signal light a large number LEDs must be used. This leads to a cost-intensive, complex construction, which also a has high current consumption. As particularly disadvantageous proves itself in the known embodiment of the Signal light that to achieve a uniform Illumination of the transparent cover plate LEDs due to the known radiation characteristics be arranged at a short distance from each other need so that a large radiation area, which is also a has a large signal and warning effect, can only be reached, if there are a large number of LEDs in the signal lamp are arranged, what the cost of manufacturing and the Current consumption increased.
Der Erfindung liegt die Aufgabe zugrunde, eine Signalleuchte für Kraftfahrzeuge zu schaffen, die einfach und kostengünstig ist, die bei einer großen Leuchtkraft eine große Signal- und Warnwirkung aufweist, die bei einer geringen Stromaufnahme eine gleichmäßige Ausleuchtung gewährleistet und die möglichst platzsparend und flach ausgebildet ist.The invention has for its object a Signal light for motor vehicles to create that simple and is inexpensive with a high luminosity has a large signaling and warning effect, which in a low power consumption, uniform illumination guaranteed and the most space-saving and flat is trained.
Die Aufgabe wird erfindungsgemäß dadurch gelöst, daß jeder Leuchtdiode ein langgestrecktes Lichtleitelement zugeordnet ist, daß mindestens eine Stirnfläche jedes Lichtleitelements als eine Lichteinkoppelfläche für das Licht einer Leuchtdiode ausgebildet ist, daß die der Lichtaustrittsfläche abgewandte Seite jedes Lichtleitelements lichtablenkende Mittel aufweist, und daß mindestens zwei Lichtleitelemente parallel nebeneinander hinter der Abschlußscheibe angeordnet sind.The object is achieved in that everyone LED assigned an elongated light guide element is that at least one end face of each Lichtleitelements as a light coupling surface for that Light of a light emitting diode is formed that the Light exit surface facing away from each Lichtleitelements has light deflecting means, and that at least two light guide elements in parallel next to each other are arranged behind the lens.
Es ist von Vorteil, daß jeder Leuchtdiode ein langgestrecktes Lichtleitelement zugeordnet ist, weil somit das von jeder Leuchtdiode erzeugte Licht auf einfache und kostengünstige Weise über ein langgestrecktes Lichtleitelement in eine gewünschte Lichtverteilung mit breiter flächiger Abstrahlung umgesetzt werden kann.It is advantageous that each light emitting diode elongated light guide element is assigned because thus the light generated by each LED in a simple and inexpensive way over an elongated Light guide element with a desired light distribution broad area radiation can be implemented.
In diesem Zusammenhang ist es vorteilhaft, daß mindestens eine Stirnfläche jedes Lichtleitelements als eine Lichteinkoppelfläche für das Licht einer Leuchtdiode ausgebildet ist, weil somit eine bestmögliche Ausnutzung des von jeder Leuchtdiode bereit gestellten Lichts sichergestellt wird.In this context, it is advantageous that at least an end face of each light guiding element as one Light coupling surface for the light of a light emitting diode is trained because it thus makes the best possible use of the light provided by each LED is ensured.
Dadurch, daß die der Lichtaustrittsfläche abgewandte Seite jedes Lichtleitelements lichtablenkende Mittel aufweist, ergibt sich der Vorteil, daß das von der Leuchtdiode in das Lichtleitelement eingekoppelte Licht gezielt in eine Lichtabstrahlrichtung abgelenkt werden kann.The fact that the side facing away from the light exit surface each light-guiding element has light-deflecting means, there is the advantage that the LED in the Light-guiding element targeted light into a Light emission direction can be deflected.
Vorteilhaft ist dabei, daß mindestens zwei Lichtleitelemente parallel nebeneinander hinter der Abschlußscheibe angeordnet sind, wodurch eine einfache und kostengünstige Konstruktion und Herstellbarkeit gewährleistet ist, eine großflächige Signalleuchte mit großer Leuchtkraft bei großer Signal- und Warnwirkung aufbaubar ist, die zudem bei einer gleichmäßigen Ausleuchtung eine geringe Stromaufnahme aufweist, da aufgrund der guten Ausnutzung des Lichts von den Leuchtdioden nur eine geringe Anzahl Leuchtdioden erforderlich ist. Als besonders vorteilhaft erweist sich hierbei, daß die Signalleuchte besonders platzsparend und flachbauend ausgebildet werden kann.It is advantageous that at least two Light guide elements in parallel next to each other behind the Cover disc are arranged, making a simple and inexpensive construction and manufacturability is guaranteed to have a large signal light great luminosity with great signal and warning effect is buildable, which also with a uniform Illumination has a low power consumption because due to the good use of light from the LEDs only a small number of LEDs is required. It has proven to be particularly advantageous here that the signal light is particularly space-saving and can be built flat.
Es ist von Vorteil, wenn die Lichtleitelemente zylinderförmig ausgebildet sind, weil sich hierdurch zum einen eine einfache und kostengünstige Herstellbarkeit der Lichtleitelemente ergibt und zudem eine für Signalleuchten besonders günstige Lichtverteilung erreicht werden kann, da zum einen aufgrund der auftretenden Reflexionen in dem Lichtleitelement eine besonders günstige Verteilung des Lichts in dem Lichtleitelement erreicht wird und zum anderen aufgrund der durch die Zylinderform gegebenen Lupenwirkung bei Abstrahlung über die Mantelfläche eine besonders große Gleichverteilung bei der Lichtabstrahlung gewährleistet wird.It is advantageous if the light guide elements are cylindrical, because this leads to a simple and inexpensive to manufacture the Light guide elements results and also one for signal lights particularly favorable light distribution can be achieved because on the one hand due to the reflections occurring in the Lichtleitelement a particularly favorable distribution of Light is reached in the light guide and others due to the shape of the cylinder Magnifying effect when emitting radiation over the outer surface particularly large uniform distribution of light radiation is guaranteed.
Vorteilhaft ist, daß die lichtablenkenden Mittel der der Lichtaustrittsfläche abgewandten Seite jedes Lichtleitelements Prismen sind, weil sich somit zum einen eine einfache und kostengünstige Herstellbarkeit ergibt, da die Prismen gleichzeitig mit der Herstellung des Lichtleitelements, z. B. bei einem Kunststoffspritzverfahren, in den Körper des Lichtleitelements eingebracht werden können und zum anderen durch die Variation der Prismenwinkel und/oder der Prismenteilung und oder der Prismentiefe der Winkel der Streuung und/oder Ablenkung des Lichts, das von dem Lichtleiter ausgesendet wird, besonders einfach beeinflußt werden kann, wodurch je nach erforderter Lichtabstrahlung auf besonders einfache und kostengünstige Weise unterschiedliche Lichtabstrahlcharakteristiken erreicht werden können.It is advantageous that the light-deflecting means of Light exit surface facing away from each Light guiding elements are prisms, because on the one hand results in a simple and inexpensive manufacturability, because the prisms simultaneously with the manufacture of the Lichtleitelements, z. B. at one Plastic injection molding, in the body of the Light guide element can be introduced and the other by varying the prism angle and / or the Prism division and or the prism depth of the angle of the Scattering and / or deflecting the light emitted by the Light guide is sent out, influenced particularly easily can be, depending on the required light emission in a particularly simple and inexpensive way different light emission characteristics achieved can be.
Dadurch, daß die Lichtaustrittsfläche jeder Leuchtdiode in das Lichtleitelement hineinragt und daß die Form der Lichteinkoppelfläche jedes Lichtleitelements der Form der Lichtaustrittsfläche und der Lichtabstrahlcharakteristik der Leuchtdiode angepaßt ist, ergibt sich der Vorteil, daß das von der Leuchtdiode über seine Lichtaustrittsfläche abgestrahlte Licht je nach verwendetem Typ der Leuchtdiode bestmöglich in das Lichtleitelement eingekoppelt wird, wodurch die Lichtverluste möglichst gering gehalten werden.The fact that the light exit surface of each LED in the light guide element protrudes and that the shape of the Light coupling surface of each light guiding element in the form of Light exit surface and the light emission characteristic the LED is adapted, there is the advantage that that of the light emitting diode via its light exit surface emitted light depending on the type of light emitting diode used is optimally coupled into the light guide element, whereby the light losses are kept as low as possible.
In diesem Zusammenhang ist es vorteilhaft, daß jedes Lichtleitelement einen Lichteinkoppelbereich mit zu der Lichteinkoppelfläche sich verjüngendem Durchmesser aufweist, weil somit z. B. bei Leuchtdioden, die eine kleine Lichtaustrittsfläche haben, das Licht aber breit abstrahlen, das auf die Wandung des Lichteinkoppelbereichs treffende Licht aufgrund der wirksamen Totalreflexionen das Lichtleitelement nicht verlassen kann und in einem günstigen Winkel in das Lichtleitelement hinein reflektiert wird, wodurch sich eine besonders gute Nutzung des zur Verfügung gestellten Lichts ergibt und zudem die Gleichverteilung des Lichts in dem Lichtleitelement erhöht wird.In this context, it is advantageous that each Lichtleitelement a light coupling area with the Light coupling surface tapering diameter has because thus z. B. with LEDs, the one have a small light emission surface, but the light is wide emit light on the wall of the light coupling area light due to the effective total reflections Light guide can not leave and in one favorable angle reflected in the light guide is, which is a particularly good use of the Light provided and also the Uniform distribution of light in the light guide element increases becomes.
Dadurch, daß alle Leuchtdioden auf einer Seite der parallel angeordneten Lichtleitelemente angeordnet sind, ergibt sich der Vorteil eines besonders einfachen und kostengünstigen Aufbaus der Signalleuchte.The fact that all the LEDs on one side of the parallel arranged light guide elements are obtained the advantage of a particularly simple and inexpensive Structure of the signal light.
Es ist von Vorteil, daß die Leuchtdioden bei benachbarten, parallel angeordneten Lichtleitelementen wechselseitig an beiden Seiten angeordnet sind, wodurch sich insbesondere bei einer großen Längenausdehnung der Lichtleitelemente und deren parallele Anordnung eine besonders gleichmäßige Ausleuchtung ergibt.It is advantageous that the light-emitting diodes in the case of neighboring, mutually parallel light guide elements are arranged on both sides, which in particular with a large linear expansion of the light guide elements and their parallel arrangement is particularly uniform Illumination results.
In diesem Zusammenhang ist es besonders vorteilhaft, daß die der Lichteinkoppelfläche gegenüberliegende Fläche verspiegelt ist, wodurch die Gleichmäßigkeit der Ausleuchtung bei nur einseitig eingekoppeltem Licht erhöht wird.In this context, it is particularly advantageous that the surface opposite the light coupling surface is mirrored, which ensures the uniformity of the Illumination increased with light coupled only on one side becomes.
Es ist von Vorteil, daß die Leuchtdioden an beiden Seiten der Lichtleitelemente angeordnet sind, wodurch insbesondere bei Lichtleitelementen großer Länge eine besonders gleichmäßige Ausleuchtung erreicht wird.It is advantageous that the LEDs on both sides the light guide elements are arranged, whereby in particular a special one for light guide elements of great length uniform illumination is achieved.
Eine besonders einfach und kostengünstig herstellbare Ausführungsform der Signalleuchte ergibt sich, wenn die Leuchtdioden in Reihen auf mindestens einer gemeinsamen Leiterplatte angeordnet sind.A particularly simple and inexpensive to manufacture Embodiment of the signal lamp results when the LEDs in rows on at least one common Printed circuit board are arranged.
Es ist von Vorteil, daß die Abschlußscheibe lichtablenkende Mittel aufweist, wodurch zum einen die Gleichmäßigkeit der Ausleuchtung erhöht wird und zum anderen auf einfache und kostengünstige Weise vorgeschriebene und gewünschte Lichtverteilungen erzeugt werden können.It is advantageous that the cover plate deflects light Has means, on the one hand, the uniformity of Illumination is increased and secondly to simple and inexpensive prescribed and desired ways Light distributions can be generated.
Dadurch, daß eine Anzahl parallel angeordneter Lichtleitelemente mit Leuchtdioden gleicher Farbe eine Gruppe bildet, die ein einheitliches Signallicht erzeugt, ist eine besonders platzsparende, flachbauende Signalleuchte herstellbar, die eine vorgegebene Leuchtfläche mit besonders gleichmäßiger Ausleuchtung aufweist und somit eine große Signal- und Warnwirkung hat.In that a number of arranged in parallel Light guiding elements with light emitting diodes of the same color Forms a group that generates a uniform signal light, is a particularly space-saving, low-rise Signal lamp producible that a predetermined Illuminated area with particularly uniform illumination has and thus has a large signal and warning effect.
In diesem Zusammenhang ist es von Vorteil, daß die Signalleuchte mindestens zwei Gruppen mit Leuchtdioden gleicher oder unterschiedlicher Farbe aufweist, wodurch auch besonders platzsparende und flache Signalleuchten herstellbar sind, die Signallicht gleicher oder unterschiedlicher Farbe gleichzeitig oder getrennt voneinander anzeigen können.In this context, it is advantageous that the Signal light at least two groups with LEDs has the same or different color, whereby also particularly space-saving and flat signal lights can be produced, the signal light the same or different color at the same time or separately from each other.
Dadurch, daß die parallelen Lichtleitelemente einer Gruppe einstückig ausgebildet sind, ergibt sich der Vorteil einer besonders einfachen und kostengünstigen Herstellbarkeit.The fact that the parallel light guide elements of a group are formed in one piece, there is the advantage of a particularly simple and inexpensive to manufacture.
Es ist von Vorteil, wenn die Signalleuchte Verwendung als Schlußlicht und/oder Bremslicht und/oder Blinklicht und/oder Rückfahrscheinwerfer in Kraftfahrzeugen findet, daß die Signalleuchte platzsparend und besonders flach aufgebaut ist, ein geringes Gewicht und eine geringe Stromaufnahme aufweist.It is advantageous if the signal lamp is used as Tail light and / or brake light and / or flashing light and / or reversing lights in motor vehicles, that the signal light is space-saving and particularly flat is built, light weight and light Has current consumption.
Entsprechend den Merkmalen des Anspruch 16 ergeben sich die Vorteile, daß das von den Leuchtdioden erzeugte Licht eine hohe Intensität bei einer breiten, kegelförmigen Abstrahlung aufweist, wodurch die Anzahl der Leuchtdioden gering gehalten werden kann und eine breite, großflächige Lichtabstrahlung erreicht wird.According to the features of claim 16, the result Advantages that the light generated by the light emitting diodes high intensity with a wide, conical Has radiation, which reduces the number of light emitting diodes can be kept low and a wide, large area Light emission is achieved.
Ein Ausführungsbeispiel des Erfindungsgegenstands ist in den Zeichnungen dargestellt und wird im folgenden anhand der Zeichnungen näher erläutert.An embodiment of the subject of the invention is in the drawings and is based on the following the drawings explained in more detail.
Gleiche oder gleichwirkende Bauteile sind in allen Figuren mit gleichen Bezugszeichen versehen. The same or equivalent components are in all figures provided with the same reference numerals.
Es zeigenShow it
Fig. 1 eine erfindungsgemäße Signalleuchte, Fig. 1 is a signal lamp according to the invention,
Fig. 2 die Einzelheit Y entsprechend Fig. 1, Fig. 2 shows the detail Y shown in FIG. 1,
Fig. 3 eine Lichtleiteranordnung der Signalleuchte, Fig. 3 shows an optical waveguide arrangement of the signal light,
Fig. 4 und Fig. 5 ein Anordnungsbeispiel einer Signalleuchte mit Lichtleitelementen, FIGS. 4 and Fig. 5 shows a configuration example of a signal light with light-conducting elements,
Fig. 6 eine Lichtleiteranordnung mit Strahlengängen, Fig. 6 shows an optical waveguide arrangement with beam paths,
Fig. 7 die Einzelheit X entsprechend Fig. 6, Fig. 7 shows the detail X shown in FIG. 6,
Fig. 8 eine Lichtleiteranordnung mit Prismen, Fig. 8 is a light pipe assembly with prisms,
Fig. 9 einen Schnitt durch die Lichtleiteranordnung entspechend Fig. 8. Fig. 9 shows a section through the optical fiber arrangement entspechend Fig. 8.
Fig. 10 eine Ausführungsform einer Leuchtdiode. Fig. 10 shows an embodiment of a light emitting diode.
Fig. 1 zeigt ein Ausführungsbeispiel einer erfindungsgemäßen Signalleuchte. Diese weist ein Gehäuse (G) auf, über das die Signalleuchte in oder an eine Kraftfahrzeugkarosserie ein- oder angebaut werden kann. Bei dem hier gezeigten Ausführungsbeispiel weist die Signalleuchte vier Gruppen (GP) auf, die Licht gleicher oder unterschiedlicher Farbe gleichzeitig oder zu unterschiedlicher Zeit erzeugen können. Eine der Gruppen kann dabei z. B. als Schlußlicht dienen, während eine andere als Bremslicht dient, eine weitere als Blinklicht eingesetzt wird und eine weitere Gruppe (GP) einen Rückfahrscheinwerfer darstellt. Die einzelnen Gruppen (GP) können dabei, wie hier gezeigt, durch einzelne transparente Abschlußscheiben (A) abgedeckt sein, die gleiche oder unterschiedliche Farben aufweisen können. Die Signalleuchte kann aber auch bei einem anderen Ausführungsbeispiel nur eine transparente Abschlußscheibe (A) unterschiedlicher oder einheitlicher Farbe aufweisen. Die Farbe der Abschlußscheibe (A) kann sich dabei auch von der Farbe des von der jeweiligen Gruppe (GP) ausgesendeten Lichts unterscheiden, so daß bei ausgeschalteter Lichterzeugung durch die jeweilige Gruppe (GP) die Farbe eine andere ist als bei eingeschalteter Lichterzeugung. Fig. 1 shows an embodiment of a signal light according to the invention. This has a housing (G), via which the signal lamp can be installed or attached to or on a motor vehicle body. In the exemplary embodiment shown here, the signal lamp has four groups (GP) which can generate light of the same or different color at the same time or at different times. One of the groups can e.g. B. serve as tail lights, while another serves as a brake light, another is used as a flashing light and another group (GP) is a reversing light. The individual groups (GP) can, as shown here, be covered by individual transparent cover lenses (A) which can have the same or different colors. In another exemplary embodiment, however, the signal lamp can only have a transparent cover lens (A) of different or uniform color. The color of the lens (A) can also differ from the color of the light emitted by the respective group (GP), so that when the light generation is switched off by the respective group (GP) the color is different than when the light generation is switched on.
Bei einem weiteren Ausführungsbeispiel, bei der die Signalleuchte z. B. in der Öffnung einer Karosserie eines Kraftfahrzeugs eingesetzt wird, kann auf ein Gehäuse (G) verzichtet werden. In diesem Fall kann das Gehäuse (G) durch eine Befestigungseinrichtung (B) ersetzt werden.In a further embodiment, in which the Signal light z. B. in the opening of a body Motor vehicle is used, can on a housing (G) to be dispensed with. In this case, the housing (G) be replaced by a fastening device (B).
Wie in dem in Fig. 1 mit Y bezeichneten Bereich kenntlich gemacht, weist jede Gruppe (GP) eine Anzahl Lichtquellen auf, die als Leuchtdioden (LED) ausgebildet sind. Jeder der Leuchtdioden (LED) ist ein langgestrecktes Lichtleitelement (L) zugeordnet, in das das von der jeweiligen Leuchtdiode (LED) erzeugte Licht eingekoppelt wird. Zur Erzeugung einer gleichmäßigen Ausleuchtung sind dabei mindestens zwei Lichtleitelemente (L) parallel nebeneinander hinter der Abschlußscheibe (A) angeordnet. Bei dem hier gezeigten Ausführungsbeispiel sind pro Gruppe (GP) zehn Lichtleitelemente (L) mit den zugehörigen Leuchtdioden (LED) parallel hinter der jeweiligen transparenten Abschlußscheibe (A) angeordnet. Auf diese Weise wird eine großflächige, gleichmäßige Lichtsignalquelle erzeugt, die bei platzsparendem und flachem Aufbau eine große Signal und Warnwirkung aufweist.As indicated in the area labeled Y in FIG. 1, each group (GP) has a number of light sources which are designed as light-emitting diodes (LED). An elongated light-guiding element (L) is assigned to each of the light-emitting diodes (LED), into which the light generated by the respective light-emitting diode (LED) is coupled. In order to produce uniform illumination, at least two light-guiding elements (L) are arranged in parallel next to one another behind the lens (A). In the exemplary embodiment shown here, ten light-guiding elements (L) with the associated light-emitting diodes (LED) are arranged in parallel per group (GP) behind the respective transparent lens (A). In this way, a large, uniform light signal source is generated, which has a large signal and warning effect with a space-saving and flat construction.
Fig. 2 zeigt die Einzelheit Y entsprechend Fig. 1 in vergrößertem Maßstab. Die Leuchtdioden (LED) sind in Reihen angeordnet und auf einer gemeinsamen Leiterplatte (LP) befestigt und elektrisch kontaktiert. Jeder Leuchtdiode (LED) ist hier ein langgestrecktes Lichtleitelement (L) zugeordnet, daß zylinderförmig ausgebildet ist. Die Lichtleitelemente (L) sind parallel nebeneinander angeordnet, wobei die Einspeisung des Lichts einseitig derart erfolgt, daß bei benachbarten parallel angeordneten Lichtleitelementen (L) die Lichteinspeisung von unterschiedlichen Seiten erfolgt. Bei anderen Ausführungsbeispielen können die Leuchtdioden (LED) auch alle auf einer Seite angeordnet sein oder beidseitig angeordnet sein. Fig. 2 shows the detail Y corresponding to Fig. 1 on an enlarged scale. The light emitting diodes (LED) are arranged in rows and attached to a common printed circuit board (LP) and electrically contacted. Each light-emitting diode (LED) is assigned an elongated light-guiding element (L) that is cylindrical. The light guide elements (L) are arranged in parallel next to one another, the light being fed in on one side in such a way that, in the case of adjacent light guide elements (L) arranged in parallel, the light is fed in from different sides. In other exemplary embodiments, the light-emitting diodes (LED) can also all be arranged on one side or arranged on both sides.
Zur Befestigung und sicheren Beabstandung der parallel angeordneten Lichtleitelemente (L) sind diese bei dem hier gezeigten Ausführungsbeispiel auf einer Befestigungseinrichtung (B) montiert. Bei einem anderen Ausführungsbeispiel können die Lichtleitelemente (L) einer Gruppe (GP) auch einstückig ausgebildet sein.For fastening and safely spacing the parallel arranged light guide elements (L) are in the here shown embodiment on a Fastening device (B) installed. Another one Embodiment can the light guide elements (L) Group (GP) can also be formed in one piece.
Wie in Fig. 2 zudem gezeigt, weist die der hier gezeigten Lichtaustrittsfläche abgewandte Seite jedes Lichtleitelements (L) lichtablenkende Mittel auf, die hier beispielhaft als Prismen (P), die quer zur Hauptlichteinstrahlrichtung angeordnet sind, ausgebildet sind.As also shown in FIG. 2, the side of each light-guiding element (L) facing away from the light exit surface shown here has light-deflecting means, which are designed here, for example, as prisms (P), which are arranged transversely to the main light beam direction.
Fig. 3 zeigt in vergrößertem Maßstab einen Schnitt durch ein Ausführungsbeispiel einer Lichtleiteranordnung gemäß Fig. 2. Die Leuchtdiode (LED) weist dabei einen Grundkörper und eine linsenförmige Lichtaustrittsfläche auf. Diese Lichtaustrittsfläche ragt in das Lichtleitelement (L) hinein. Zur bestmöglichen Ausnutzung des von der Leuchtdiode (LED) ausgesendeten Lichts ist die Form der Lichteinkoppelfläche (LK), des Lichtleitelements (L), der Form der Lichtaustrittsfläche und der Lichtabstrahlcharakteristik der Leuchtdiode (LED) angepaßt. Bei dem hier gezeigten Ausführungsbeispiel weist das Lichtleitelement (L) einen Lichteinkoppelbereich (LB) mit zu der Lichteinkoppelfläche (LK) sich verjüngenden Durchmesser auf. Je nach Ausbildung der Lichtaustrittsfläche und der Lichtabstrahlcharakteristik der verwendeten Leuchtdiode (LED) kann der Lichteinkoppelbereich (LB) eine unterschiedliche Form aufweisen, die von der hier gezeigten Kegelform abweicht und z. B. kugelförmig sein kann. Bei einem anderen Ausführungsbeispiel kann auf einen Lichteinkoppelbereich (LB) je nach verwendeter Leuchtdiode auch ganz verzichtet werden. Wie schon unter Fig. 2 beschrieben, weist jedes Lichtleitelement (L) auf der der Lichtaustrittsfläche abgewandten Seite Prismen (P) auf, von denen hier einige beispielhaft gezeigt sind. Je nach der gewünschten Lichtstreuung und der zu erzeugenden Lichtverteilumg kann dabei durch Veränderung der Prismenwinkel und/oder der Prismenteilung und/oder der Prismentiefe der Winkel der Streuung des abgestrahlten Lichts verändert werden. In Fig. 3 sind beispielhaft einige wenige Prismen (P) eingezeichnet. Zur Verdeutlichung des Strahlengangs in dem Lichtleitelement (L) sind beispielhaft zwei Lichtstrahlen eingezeichnet, die von den Prismen (P) in Abstrahlrichtung reflektiert werden und das Lichtleitelement (L) verlassen. Bei dem hier gezeigten Ausführungsbeispiel erfolgt die Einkopplung in das Lichtleitelement (L) nur einseitig. Zur Verbesserung der Gleichverteilung des Lichts ist daher die der Lichteinkoppelfläche (LK) gegenüberliegende Fläche (F) verspiegelt. Das Lichtleitelement (L) ist in Fig. 3 verkürzt dargestellt. Die erforderliche Länge der Lichtleitelemente (L) können von Anwendung zu Anwendung verschieden sein, ebenso wie die Durchmesser der Lichtleitelemente (4). FIG. 3 shows, on an enlarged scale, a section through an exemplary embodiment of a light guide arrangement according to FIG. 2. The light-emitting diode (LED) has a base body and a lenticular light exit surface. This light exit surface protrudes into the light guide element (L). The shape of the light coupling surface (LK), the light-guiding element (L), the shape of the light exit surface and the light emission characteristic of the light-emitting diode (LED) are adapted to make the best possible use of the light emitted by the light-emitting diode (LED). In the exemplary embodiment shown here, the light-guiding element (L) has a light coupling area (LB) with a diameter that tapers to the light coupling surface (LK). Depending on the design of the light exit surface and the light emission characteristic of the light-emitting diode (LED) used, the light coupling area (LB) can have a different shape, which differs from the cone shape shown here and z. B. can be spherical. In another exemplary embodiment, a light coupling area (LB) can also be dispensed with entirely, depending on the light-emitting diode used. As already described under FIG. 2, each light guide element (L) has prisms (P) on the side facing away from the light exit surface, some of which are shown here by way of example. Depending on the desired light scattering and the light distribution to be generated, the angle of the scattering of the emitted light can be changed by changing the prism angle and / or the prism division and / or the prism depth. A few prisms (P) are shown by way of example in FIG. 3. To illustrate the beam path in the light-guiding element (L), two light rays are shown as an example, which are reflected by the prisms (P) in the radiation direction and leave the light-guiding element (L). In the exemplary embodiment shown here, the coupling into the light guide element (L) takes place only on one side. To improve the uniform distribution of the light, the surface (F) opposite the light coupling surface (LK) is mirrored. The light guide element (L) is shown shortened in Fig. 3. The required length of the light guide elements (L) can vary from application to application, as can the diameter of the light guide elements ( 4 ).
Fig. 4 zeigt ein Anordnungsbeispiel für eine erfindungsgemäße Signalleuchte. Bei der hier gezeigten Anordnung sind die Lichtleitelemente (L) horizontal parallel hinter einer transparenten Abschlußscheibe (A) angeordnet. Die Abschlußscheibe (A) kann dabei Teil eines Gehäuses (G) und/oder einer Befestigungseinrichtung (B) sein. Fig. 4 shows an arrangement example for a signal light according to the invention. In the arrangement shown here, the light guide elements (L) are arranged horizontally in parallel behind a transparent cover plate (A). The cover plate (A) can be part of a housing (G) and / or a fastening device (B).
Fig. 5 zeigt einen Schnitt durch eine erfindungsgemäße Signalleuchte entsprechend Fig. 4. Eingezeichnet sind hierbei beispielhaft die Strahlengänge der hier gezeigten sechs parallel vertikal hinter der transparenten Abschlußscheibe angeordneten Lichtleitelemente (L). Erkennbar ist aus der Fig. 5 zum einen der geringe Platzbedarf und insbesondere die flache Bauform der Signalleuchte und zum anderen die durch einfache Mittel erzielte gleichmäßige Abstrahlcharakteristik. Bei einem anderen Ausführungsbeispiel kann die transparente Abschlußscheibe (A) zur gezielten Streuung und/oder Ablenkung des Lichts von den Lichtleitelementen (L) lichtablenkende Mittel abweisen. FIG. 5 shows a section through a signal lamp according to the invention corresponding to FIG. 4. The beam paths of the six light guide elements (L) arranged parallel and vertically behind the transparent cover plate are shown here by way of example. It can be seen from Fig. 5 for a small footprint and in particular the flat shape of the signal light and on the other hand achieved by simple means uniform emission characteristic. In another embodiment, the transparent cover plate (A) can deflect light-deflecting means for the targeted scattering and / or deflection of the light from the light-guiding elements (L).
Fig. 6 zeigt eine schon aus Fig. 2 und Fig. 3 bekannte Lichtleiteranordnung mit eingezeichneten Strahlengängen. Das von der Leuchtdiode (LED) in das Lichtleitelement (L) eingestrahlte Licht wird in dem Lichtleiter mehrfach reflektiert, so daß eine hohe Gleichverteilung entsteht. Das auf die Prismen (P) auftreffende Licht wird, durch die Form und die Anordnung der Prismen (P) bestimmt, reflektiert und verläßt, wie erkennbar, das Lichtleitelement (L) in der Lichtaustrittsrichtung. Zur Erhöhung der Gleichverteilung des Lichts in dem Lichtleitelement (L) bei einseitiger Einkopplung des Lichts ist die der Lichteinkoppelfläche (LK) gegenüberliegende Fläche (F) verspiegelt. Fig. 6 shows an already from Fig. 2 and Fig. 3 known light conductor arrangement with marked beam paths. The light radiated by the light emitting diode (LED) into the light guide element (L) is reflected several times in the light guide, so that a high uniform distribution is created. The light striking the prisms (P) is determined by the shape and arrangement of the prisms (P), reflected and, as can be seen, leaves the light-guiding element (L) in the light exit direction. In order to increase the uniform distribution of the light in the light guide element (L) when the light is coupled in from one side, the surface (F) opposite the light coupling surface (LK) is mirrored.
Fig. 7 zeigt die Einzelheit X entsprechend Fig. 6. Aus dieser Darstellung ist der Strahlenverlauf in dem Lichtleitelement (L) und die Reflexion der auf die Prismen (P) treffenden Lichtstrahlen erkennbar, die aufgrund der Prismenwinkel derart reflektiert werden, daß diese das Lichtleitelement (L) mit gewünschter Lichtverteilung in Lichtaustrittsrichtung verlassen. Die Prismen sind dabei vorteilhaft derart angeordnet, daß zwischen den Prismen keine Freiflächen entstehen, die zu ungewollten Lichteffekten führen können. Fig. 7 shows the detail X corresponding to Fig. 6. From this illustration, the beam path in the light guide element (L) and the reflection of the light rays striking the prisms (P) can be seen, which are reflected due to the prism angle so that the light guide element Leave (L) with the desired light distribution in the light exit direction. The prisms are advantageously arranged in such a way that there are no free spaces between the prisms that can lead to unwanted light effects.
Fig. 8 zeigt ein Anordnungsbeispiel für die Lichtleitelemente (L) einer erfindungsgemäßen Signalleuchte, bei der die Lichteinkopplung über die Lichteinkoppelflächen (LK) einseitig erfolgt. Gezeigt ist hierbei die Rückseite der Lichtleitelemente (L) mit einer Prismen (P) aufweisenden Fläche. Auch bei dieser Ausführungsform ist die Fläche (F) verspiegelt ausgebildet. Die Lichtleitelemente (L) sind zylinderförmig und benachbarte Lichtleitelemente (L) sind bei diesem Ausführungsbeispiel einstückig miteinander verbunden, um eine besonders einfache und kostengünstige Herstellbarkeit zu gewährleisten. Fig. 8 shows an arrangement example of the light-conducting elements (L) of a signal lamp according to the invention, in which the coupling of light on the light incident surfaces (LK) takes place on one side. The back of the light-guiding elements (L) with a surface having prisms (P) is shown. In this embodiment too, the surface (F) is mirrored. The light-guiding elements (L) are cylindrical and adjacent light-guiding elements (L) are integrally connected to one another in this exemplary embodiment in order to ensure particularly simple and inexpensive manufacture.
Wie aus Fig. 9 erkennbar ist, die einen Schnitt entsprechend Fig. 8 durch die Lichtleiteranordnung zeigt, brauchen die Flächen, die die Prismen (P) aufweisen, je nach gewünschter Lichtverteilung und gewähltem Radius der zylinderförmigen Lichtleitelemente (L) aufgrund der Lupenwirkung, betrachtet aus der Richtung (R), nur einen geringen Teil der rückwärtigen Seite der Lichtleitelemente (L) einzunehmen, um eine hohe Gleichverteilung des ausgestrahlten Lichts zu erreichen.As can be seen from FIG. 9, which shows a section corresponding to FIG. 8 through the light guide arrangement, the surfaces which the prisms (P) have, depending on the desired light distribution and the selected radius of the cylindrical light guide elements (L) due to the magnifying effect, need to be considered from the direction (R), to take up only a small part of the rear side of the light guide elements (L) in order to achieve a high uniform distribution of the emitted light.
Fig. 10 zeigt eine vorzugsweise verwendbare Leuchtdiode (LED). Diese weist einen Körper (K), ein Halbleiterelement (H), elektrische Anschlußelemente (M), einen Reflektor (E) und eine Linse (I) auf. Die Form des Reflektors (E) und die Form der Linse (I) sind dabei derart ausgebildet, daß ein möglichst großer Lichtstrom des von dem Halbleiterelement (H) erzeugten Lichts über die Linse (I) mit einer breiten, kegelförmigen Abstrahlcharakteristik abgestrahlt wird. Fig. 10 is a preferably usable light emitting diode (LED). This has a body (K), a semiconductor element (H), electrical connection elements (M), a reflector (E) and a lens (I). The shape of the reflector (E) and the shape of the lens (I) are designed in such a way that the greatest possible luminous flux of the light generated by the semiconductor element (H) is emitted via the lens (I) with a broad, cone-shaped radiation characteristic.
Verwendung finden kann z. B. eine Leuchtdiode (LED) der Fa. Hewlett Packard vom Typ HPWR-A200.Can be used for. B. a light emitting diode (LED) Hewlett Packard of the type HPWR-A200.
BezugszeichenlisteReference list
A Abschlußscheibe
B Befestigungseinrichtung
E Reflektor
F Fläche
G Gehäuse
GP Gruppe
H Halbleiterelement
I Linse
K Körper
M Anschlußelement
L Lichtleitelement
LB Lichteinkoppelbereich
LED Leuchtdioden
LK Lichteinkoppelfläche
LP Leiterplatte
P Prismen
R RichtungA lens
B fastening device
E reflector
F area
G housing
GP group
H semiconductor element
I lens
K body
M connector
L light guiding element
LB light coupling area
LED light emitting diodes
LK light coupling surface
LP circuit board
P prisms
R direction
Claims (16)
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DE4129094A DE4129094B4 (en) | 1991-09-02 | 1991-09-02 | Signal light with LEDs as a light source for motor vehicles and their use for different signal light functions |
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DE4129094A DE4129094B4 (en) | 1991-09-02 | 1991-09-02 | Signal light with LEDs as a light source for motor vehicles and their use for different signal light functions |
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DE4129094B4 DE4129094B4 (en) | 2005-08-25 |
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