EP2401544A1 - Vehicle light - Google Patents

Vehicle light

Info

Publication number
EP2401544A1
EP2401544A1 EP10706612A EP10706612A EP2401544A1 EP 2401544 A1 EP2401544 A1 EP 2401544A1 EP 10706612 A EP10706612 A EP 10706612A EP 10706612 A EP10706612 A EP 10706612A EP 2401544 A1 EP2401544 A1 EP 2401544A1
Authority
EP
European Patent Office
Prior art keywords
light
reflector
light source
lamp
scattering elements
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP10706612A
Other languages
German (de)
French (fr)
Other versions
EP2401544B1 (en
Inventor
Martin Hupel
Henning Kiel
Sebastian Haering
Sebastian Vogler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Volkswagen AG
Original Assignee
Volkswagen AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Volkswagen AG filed Critical Volkswagen AG
Publication of EP2401544A1 publication Critical patent/EP2401544A1/en
Application granted granted Critical
Publication of EP2401544B1 publication Critical patent/EP2401544B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F21S41/33—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature
    • F21S41/334—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature the reflector consisting of patch like sectors
    • F21S41/335—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature the reflector consisting of patch like sectors with continuity at the junction between adjacent areas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F21S41/33—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature
    • F21S41/334—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature the reflector consisting of patch like sectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F21S41/33—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature
    • F21S41/334—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature the reflector consisting of patch like sectors
    • F21S41/336—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature the reflector consisting of patch like sectors with discontinuity at the junction between adjacent areas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/26—Refractors, transparent cover plates, light guides or filters not provided in groups F21S43/235 - F21S43/255
    • 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
    • F21S43/30—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by reflectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/14—Adjustable mountings
    • F21V21/26—Pivoted arms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/04—Optical design
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/04—Optical design
    • F21V7/06—Optical design with parabolic curvature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/04—Optical design
    • F21V7/09—Optical design with a combination of different curvatures

Definitions

  • the present invention relates to a lamp for a vehicle having a continuous reflector with a plurality of reflector surface areas and a first light source, which is arranged such that its light emission is reflected by a first area of the reflector surface of the reflector.
  • the space requirements for lighting units are very tight.
  • the signal effect of a luminaire is determined by the circumferential size of the radiating surface and by the luminance.
  • the vehicle lights contribute significantly to the design of the vehicle. Due to the design of the lights, the vehicle is often to be given a characteristic appearance, which is easily recognized again. Furthermore, there is the problem that the cost of producing the lights should be as low as possible.
  • the luminance distribution of the luminous surfaces should be as homogeneous as possible.
  • the luminaire according to the invention is characterized in that the reflector has an opening and a second light source is provided, which is arranged with respect to the light emission direction of the lamp behind a part of the reflector and the light emission through the opening through a second region of the reflector surface of the reflector meets and is reflected there.
  • a single contiguous reflector is provided which provides a plurality of reflector surface areas for the light emission of the two light sources.
  • the second light source is arranged concealed behind a part of the reflector, so that this light source is not visible from the outside, the light emission of this light source is reflected by a region of the reflector surface of the reflector.
  • the reflector has an incision.
  • the portion of the reflector formed by the incision is bent forward in the light emission direction of the luminaire.
  • the second light source is arranged.
  • the forwardly curved part of the reflector is designed in particular schaufeiförmig.
  • the opening is formed, through which passes the light emission of the second light source.
  • the luminaire Since separate reflectors are not provided for each light source in the luminaire according to the invention, but the light emission is reflected by the reflector surfaces of the coherent reflector, the luminaire requires very little installation space. Furthermore, the direct view from the outside to the second light source without further EIe- elements such. As masks or diaphragms can be prevented.
  • the reflector is integrally formed.
  • the first light source is arranged in the focal point of the areas of the reflector surface of the reflector, which reflect the light emission of the first light source
  • the second light source is arranged at the focal point of the areas of the reflector surface of the reflector, which the light emission of the second light source reflect.
  • the focal point of a reflector surface is understood to mean the location from which emitted light beams are reflected by the reflector surface such that the reflected light beams are parallel or approximately parallel to one another.
  • the light beams emitted by the light sources are thus reflected in this embodiment of the luminaire according to the invention by the reflector surfaces of the reflector so that a light beam of parallel or approximately parallel light beams is generated.
  • the light emitted by the light sources falls directly onto the reflector surfaces of the reflector. There are between the light sources and the reflector surfaces neither optically active elements such. As lenses, prisms or the like, still arranged transparent discs.
  • At least one lens is provided.
  • the light reflected by the reflector surfaces impinges on this lens.
  • at least two non-coherent luminous surfaces are formed.
  • the lens comprises light-scattering elements.
  • the lens comprises light-scattering elements both on the side facing the first light source and on the side remote from the first light source.
  • the light-scattering elements extend on the side facing away from the first light source in the horizontal direction.
  • they are horizontally oriented sub-rollers.
  • light-scattering elements preferably extend in the vertical direction. Also in this case, it may be vertically oriented part rollers.
  • the sub-rollers can have the shape of a circular or parabolic section or another convex curvature in cross-section on the light entrance or light exit side, which results essentially from the desired light scattering.
  • the light-scattering elements on the side facing away from the first light source side are preferably formed particularly distinctive. They have a different curvature or curvature than the light-scattering elements on the side facing the first light source.
  • the curvature of the horizontally oriented sub-rollers on the side facing away from the first light source side of the lens is in particular smaller than the curvature of the vertically oriented sub-rollers on the side facing the first light source side. This design has the consequence that the part rollers on the outside from the outside are very clearly visible.
  • the light-scattering elements of the lens ensure that the parallel or approximately parallel light striking the lens from the reflector surfaces is scattered at the desired angles.
  • the light-scattering elements are designed so that the contour of the lens on the visible side from the outside aesthetic requirements, ie the desired design corresponds, whereas the light-scattering elements on the back, ie on the side facing the light source, the main function of light scattering, especially the function of horizontal light Scattering, takes over. Due to the visible on the outside of the lens a certain light scattering is thus generated. However, the desired light scattering is only generated by the addition of the light-scattering elements on the side not visible from the outside.
  • a further advantage of the luminaire according to the invention is that the luminous surfaces have a very homogeneous luminance distribution.
  • the parallel or approximately parallel light beams generated by the reflector surfaces are namely scattered only at the lens. For this reason, it is not possible to identify a light source within a luminous area.
  • known luminaires in which the light emission of a plurality of light sources is used for a luminous area, it has been found that regions with greater light intensity are formed within a luminous area, particularly from large distances. These areas of greater light intensity can assign the Bertachter the individual light sources.
  • the lens or the light-scattering elements of the lens are arranged only in the region of the luminous surfaces of the luminaire.
  • the lens can thus be two separate lenses.
  • only the light-scattering elements may be provided in these areas, but the lens may be otherwise contiguous.
  • the first light source is shielded by a mask which prevents a direct view from the outside onto the first light source. In this way it is ensured that from the outside only the two light surfaces perceived, not the light sources themselves.
  • this has a housing which is closed by a cover plate in the light exit direction.
  • the lens is arranged in this case within the housing. It thus forms an intermediate lens.
  • the lens is preferably designed in clear glass optics, ie you can see from the outside without significant impairment into the interior of the housing.
  • the appearance of the lamp is thus determined by the intermediate lens with the light-scattering elements on the outside both in the switched-on state of the light source and in the off state of the light sources.
  • the luminous surfaces are formed, which are visible through the lens.
  • the first luminous surface may have a disc or rectangle shape
  • the second luminous surface may have an angular shape.
  • FIG. 1 shows schematically a perspective view of an embodiment of the luminaire according to the invention
  • FIG. 2 shows another perspective view of the embodiment of the luminaire according to the invention
  • FIG. 3 shows a perspective view of the embodiment of the luminaire according to the invention from behind
  • FIG. 4 shows a section through the exemplary embodiment of the luminaires according to the invention.
  • Fig. 5 shows a detail of the embodiment of the lamp according to the invention.
  • the basic structure of the luminaire will first be described.
  • the lamp of the embodiment shown is a tail light.
  • the directions, such as horizontal, vertical and lateral, refer in the following to an installation of the lamp in a vehicle.
  • the light comprises a light source 1.
  • This may be a known light source 1, which is as punctiform as possible.
  • the light source 1 is arranged in front of a reflector 3.
  • the reflector 3 for this purpose has an opening through which an attitude for the light source 1 can pass.
  • the location where the light emission is generated is in front of the reflector with respect to the light emission direction of the lamp. It is of course possible that reflector areas are formed laterally next to the light source 1, which extend to the light source. On an axis which is parallel to the light emission direction of the luminaire through the light source 1, however, the light source is located in front of reflector surface areas which adjoin the light source 1.
  • the reflector 3 is characterized in that it has an opening 5.
  • the opening 5 in this case is not an opening through which a holder of a light source passes, so that the light source can be accommodated in the reflector.
  • the lamp comprises a second light source 2, which is arranged with respect to the light emission direction of the lamp behind a part 4 of the reflector 3.
  • the light emitted by the light source 2 passes through this opening 5 and strikes a portion of the reflector surface of the reflector 3 and is reflected there.
  • the part 4 of the reflector 3 thus serves to conceal the light source 2 when viewing the lamp from the outside.
  • the opening 5 formed by the part 4 makes it possible for the light emitted by the light source 2 to strike reflector surfaces of the reflector 3 and to become part of the light emission of the luminaire.
  • the arrangement of the second light source 2 behind the part 4 of the reflector 3 is to be understood such that a light beam emitted by the second light source 2 in the direction of the light emission direction L (FIG. 4) of the luminaire does not unhinder the part 4 of the reflector 3 can happen, but is absorbed or scattered at the back of the part 4 of the reflector 3. Furthermore, it can be provided that the light beams emitted by the second light source 2, which pass through the opening 5, are either absorbed or reflected by a reflector surface of the reflector 3. In this case, from any angle from the outside, a direct view of the second light source 2 is possible, so that it remains invisible to the viewer from the outside in any case.
  • the reflector 3 on different areas with reflector surfaces. These areas are designated in FIG. 2 by A1, A2 and B.
  • the remaining surfaces of the reflector 3 are technically not effective. For example, the light of the light sources 1 and 2 impinging on these remaining surfaces can be absorbed.
  • the reflector 3 is continuous, in particular in one piece, formed.
  • the light emitted by the first light source 1 hits the reflector surfaces A1 and B, and the light emitted by the second light source 2 strikes the reflector surface A2.
  • the light beams reflected at the reflector surface areas A1 and A2 form a first luminous area
  • the light beams reflected from the reflector area area B form a second luminous area, as will be explained later.
  • the two illuminated areas are characterized by the fact that they are not connected.
  • the reflector 3 is a so-called free-form reflector.
  • the free-form reflector surfaces are adapted to the arrangement of the light sources 1 and 2 such that of the free-form reflector surfaces a parallel or approximately parallel Light beam is generated. In this sense, the light sources 1 and 2 are thus arranged in focal points of the free-form reflector surfaces.
  • the areas A1 and A2 of the reflector surface of the reflector 3 generate a first continuous light bundle L1.
  • the region B of the reflector surface of the reflector 3 generates a second coherent light beam L2, which is separate from the light beam L1.
  • the first light beam L1 strikes a light disk formed as an intermediate lens 6.
  • the intermediate lens 6 has on the light source 1 side facing light scattering elements 15 and on the light source 1 side facing away, i. on the visible side from the outside, light scattering elements 13. Of these light-scattering elements 15 and 13, the light is deflected in the vertical and horizontal directions and a first luminous surface 17 is formed, as will be explained later.
  • the second light beam L2 impinges on a second intermediate light disk 7.
  • the intermediate lens 7 like the intermediate lens 6, on the light source 1 side facing light scattering elements 16 and on the side facing away from the light source 1 light scattering elements 14.
  • the light-scattering elements 13 and 14 of the intermediate lenses 6 and 7, which are arranged on the side facing away from the light source 1 be formed identically.
  • a second luminous surface is formed, which is characterized in that it is not related to the first luminous surface which is formed in the intermediate lens 6. There are thus created by a single coherent reflector 3 two separate lighting areas.
  • the luminaire is provided within a housing 12, which is closed off from a cover disc 8 to the outside.
  • the lens 8 is designed in clear glass optics, so that the rays of light emanating from the intermediate lenses 6 and 7 are essentially not influenced by the lens 8 with respect to their direction.
  • the intermediate lenses 6 and 7 are arranged perpendicular to the light emission direction L of the lamp. In this plane perpendicular to the direction L is located between the two intermediate lenses 6 and 7, a mask 9, above and below the intermediate lenses 6 and 7 are also the masks 10 and 1 1.
  • the mask 9 shields the first light source 1 from so that it prevents a direct view from the outside of the light source 1.
  • the masks 10 and 1 1 also prevent that you can see from the outside laterally into the light. From the outside, therefore, only the light-scattering elements 13 and 14 of the light source 1 facing away from the sides of the intermediate lenses 6 and 7 can be seen, which form the two illuminated surfaces.
  • the first light source 1 is thus shielded by the mask 9, so that it is not visible from the outside
  • the second light source 2 is shielded by the part 4 of the reflector 3, so that it is not visible from the outside.
  • the lamp in cross section of the masks 9, 10 and 1 1 and the intermediate lenses 6 and 7 can be completed.
  • the intermediate lenses 6 and 7 could be formed in this case by a single intermediate lens, the light-scattering elements 13 to 16 are arranged only in the region of the desired luminous surfaces.
  • Fig. 5 shows a detail of the intermediate lens 7.
  • the intermediate lens 6 is shaped accordingly.
  • the intermediate lens 7 has light-scattering elements 14 which extend in the horizontal direction. These are part rolls.
  • the curvature of the surface may be circular or have another convexly curved shape.
  • the parallel incident light beam is scattered in the vertical direction.
  • light-scattering elements 16 are arranged, which extend in the vertical direction. In this case too, there are partial rolls whose curvature differs from the curvature of the partial rolls of the light-scattering elements 14.
  • the curvature of the light-scattering elements 16 is greater, so that more light-scattering elements 16 are arranged on the intermediate lens 7 per unit length, as light-scattering elements 14.
  • the light-scattering elements 16 cause a deflection of the parallel incident light beam in the horizontal direction. They thus essentially determine from which angles the luminaire is visible to other road users.
  • aspects of the design need not be taken into account they are essentially invisible from the outside. They can be chosen so that the optical requirements of the lamp are met.

Landscapes

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

Abstract

The invention relates to a light for a vehicle having a contiguous reflector (3) having a plurality of reflector surface regions (A1, A2, B) and a first light source (1) that is arranged such that the light emission thereof is reflected by a first region (A1, B) of the reflector surface of the reflector (3). The light according to the invention is characterized in that the reflector (3) has an opening (5) and there is a second light source that is arranged behind a part (4) of the reflector (3) relative to the light emission direction (L) of the light and the light emission thereof hits a second region (A2) of the reflector surface of the reflector (3) through the opening (5) and is there reflected.

Description

Fahrzeugleuchte vehicle light
Die vorliegende Erfindung betrifft eine Leuchte für ein Fahrzeug mit einem zusammenhängenden Reflektor mit mehreren Reflektorflächenbereichen und einer ersten Lichtquelle, die so angeordnet ist, dass ihre Lichtemission von einem ersten Bereich der Reflektorfläche des Reflektors reflektiert wird.The present invention relates to a lamp for a vehicle having a continuous reflector with a plurality of reflector surface areas and a first light source, which is arranged such that its light emission is reflected by a first area of the reflector surface of the reflector.
Bei der Neugestaltung von Fahrzeugen ergibt sich das Problem, dass aufgrund der gewünschten Aerodynamik und des gewünschten Designs die Bauraumverhältnisse für Beleuchtungseinheiten, insbesondere für die Leuchten einschließlich der Heckleuchten und Scheinwerfer, sehr knapp bemessen sind. Die Signalwirkung einer Leuchte wird jedoch von der Umfangsgröße der Abstrahlfläche und von der Leuchtdichte bestimmt. Des Weiteren tragen die Fahrzeugleuchten in erheblichem Maße zum Design des Fahrzeugs bei. Durch die Gestaltung der Leuchten soll dem Fahrzeug vielfach ein charakteristisches Erscheinungsbild verliehen werden, welches leicht wieder erkannt wird. Ferner ergibt sich das Problem, dass die Kosten für die Herstellung der Leuchten so gering wie möglich sein sollen.When redesigning vehicles there is the problem that due to the desired aerodynamics and the desired design, the space requirements for lighting units, especially for the lights including the rear lights and headlights, are very tight. However, the signal effect of a luminaire is determined by the circumferential size of the radiating surface and by the luminance. Furthermore, the vehicle lights contribute significantly to the design of the vehicle. Due to the design of the lights, the vehicle is often to be given a characteristic appearance, which is easily recognized again. Furthermore, there is the problem that the cost of producing the lights should be as low as possible.
Es ist die Aufgabe der vorliegenden Erfindung, eine Leuchte der eingangs genannten Art bereitzustellen, die einerseits dem Fahrzeug ein charakteristisches Erscheinungsbild verleiht, die andererseits jedoch einfach an verschiedene Bauraumverhältnisse anpassbar ist und die schließlich kostengünstig herstellbar ist. Außerdem soll die Leuchtdich- tenverteilung der Leuchtflächen so homogen wie möglich sein.It is the object of the present invention to provide a luminaire of the type mentioned, on the one hand gives the vehicle a characteristic appearance, on the other hand, however, is easily adaptable to different space conditions and which is finally produced inexpensively. In addition, the luminance distribution of the luminous surfaces should be as homogeneous as possible.
Diese Aufgabe wird erfindungsgemäß durch eine Leuchte mit den Merkmalen des Anspruchs 1 gelöst. Vorteilhafte Aus- und Weiterbildungen ergeben sich aus den Unteransprüchen.This object is achieved by a luminaire with the features of claim 1. Advantageous embodiments and further developments emerge from the subclaims.
Die erfindungsgemäße Leuchte ist dadurch gekennzeichnet, dass der Reflektor eine Öffnung aufweist und eine zweite Lichtquelle vorgesehen ist, die bezüglich der Lichtemissionsrichtung der Leuchte hinter einem Teil des Reflektors angeordnet ist und deren Lichtemission durch die Öffnung hindurch auf einen zweiten Bereich der Reflektor- fläche des Reflektors trifft und dort reflektiert wird. Erfindungsgemäß ist somit ein einziger zusammenhängender Reflektor vorgesehen, der mehrere Reflektorflächenbereiche für die Lichtemission der beiden Lichtquellen bereitstellt. Obwohl die zweite Lichtquelle verdeckt hinter einem Teil des Reflektors angeord- net ist, so dass diese Lichtquelle von außen nicht sichtbar ist, wird die Lichtemission dieser Lichtquelle von einem Bereich der Reflektorfläche des Reflektors reflektiert.The luminaire according to the invention is characterized in that the reflector has an opening and a second light source is provided, which is arranged with respect to the light emission direction of the lamp behind a part of the reflector and the light emission through the opening through a second region of the reflector surface of the reflector meets and is reflected there. Thus, according to the invention, a single contiguous reflector is provided which provides a plurality of reflector surface areas for the light emission of the two light sources. Although the second light source is arranged concealed behind a part of the reflector, so that this light source is not visible from the outside, the light emission of this light source is reflected by a region of the reflector surface of the reflector.
Gemäß einer bevorzugten Ausgestaltung der erfindungsgemäßen Leuchte weist der Reflektor einen Einschnitt auf. Der von dem Einschnitt gebildete Teil des Reflektors ist in Lichtemissionsrichtung der Leuchte nach vorne gebogen. Hinter dem nach vorne gebogenen Teil des Reflektors ist die zweite Lichtquelle angeordnet. Dabei ist der nach vorne gebogene Teil des Reflektors insbesondere schaufeiförmig ausgebildet. Zwischen dem nach vorne gebogenen Teil des Reflektors und dem übrigen Teil des Reflektors ist die Öffnung gebildet, durch welche die Lichtemission der zweiten Lichtquelle hindurchtritt.According to a preferred embodiment of the luminaire according to the invention, the reflector has an incision. The portion of the reflector formed by the incision is bent forward in the light emission direction of the luminaire. Behind the forward curved portion of the reflector, the second light source is arranged. In this case, the forwardly curved part of the reflector is designed in particular schaufeiförmig. Between the forwardly bent part of the reflector and the remaining part of the reflector, the opening is formed, through which passes the light emission of the second light source.
Da bei der erfindungsgemäßen Leuchte nicht für jede Lichtquelle separate Reflektoren vorgesehen sind, sondern die Lichtemission über die Reflektorflächen des zusammenhängenden Reflektors reflektiert wird, benötigt die Leuchte sehr wenig Bauraum. Des Weiteren kann die direkte Sicht von außen auf die zweite Lichtquelle ohne weitere EIe- mente, wie z. B. Masken oder Blenden verhindert werden.Since separate reflectors are not provided for each light source in the luminaire according to the invention, but the light emission is reflected by the reflector surfaces of the coherent reflector, the luminaire requires very little installation space. Furthermore, the direct view from the outside to the second light source without further EIe- elements such. As masks or diaphragms can be prevented.
Gemäß einer bevorzugten Ausgestaltung der erfindungsgemäßen Leuchte ist der Reflektor einteilig ausgebildet.According to a preferred embodiment of the luminaire according to the invention, the reflector is integrally formed.
Gemäß einer bevorzugten Ausgestaltung der erfindungsgemäßen Leuchte ist die erste Lichtquelle im Brennpunkt der Bereiche der Reflektorfläche des Reflektors angeordnet, welche die Lichtemission der ersten Lichtquelle reflektieren, und die zweite Lichtquelle ist im Brennpunkt der Bereiche der Reflektorfläche des Reflektors angeordnet, welche die Lichtemission der zweiten Lichtquelle reflektieren. Unter dem Brennpunkt einer Reflek- torfläche wird dabei der Ort verstanden, von dem aus emittierte Lichtstrahlen so von der Reflektorfläche reflektiert werden, dass die reflektierten Lichtstrahlen parallel bzw. näherungsweise parallel zueinander sind. Die von den Lichtquellen emittierten Lichtstrahlen werden somit bei dieser Ausgestaltung der erfindungsgemäßen Leuchte von den Reflektorflächen des Reflektors so reflektiert, dass ein Lichtbündel aus parallelen bzw. annä- hernd parallelen Lichtstrahlen erzeugt wird. Gemäß einer Ausgestaltung der erfindungsgemäßen Leuchte fällt das von den Lichtquellen emittierte Licht direkt auf die Reflektorflächen des Reflektors. Es sind zwischen den Lichtquellen und den Reflektorflächen weder optisch wirksame Elemente, wie z. B. Linsen, Prismen oder dergleichen, noch durchsichtige Scheiben angeordnet.According to a preferred embodiment of the luminaire according to the invention, the first light source is arranged in the focal point of the areas of the reflector surface of the reflector, which reflect the light emission of the first light source, and the second light source is arranged at the focal point of the areas of the reflector surface of the reflector, which the light emission of the second light source reflect. The focal point of a reflector surface is understood to mean the location from which emitted light beams are reflected by the reflector surface such that the reflected light beams are parallel or approximately parallel to one another. The light beams emitted by the light sources are thus reflected in this embodiment of the luminaire according to the invention by the reflector surfaces of the reflector so that a light beam of parallel or approximately parallel light beams is generated. According to one embodiment of the luminaire according to the invention, the light emitted by the light sources falls directly onto the reflector surfaces of the reflector. There are between the light sources and the reflector surfaces neither optically active elements such. As lenses, prisms or the like, still arranged transparent discs.
Gemäß einer Ausgestaltung der erfindungsgemäßen Leuchte ist zumindest eine Lichtscheibe vorgesehen. Auf diese Lichtscheibe trifft das von den Reflektorflächen reflektierte Licht. Bei der Lichtscheibe werden zumindest zwei nicht zusammenhängende Leuchtflächen gebildet.According to one embodiment of the luminaire according to the invention, at least one lens is provided. The light reflected by the reflector surfaces impinges on this lens. In the case of the lens at least two non-coherent luminous surfaces are formed.
Gemäß einer weiteren Ausgestaltung der erfindungsgemäßen Leuchte umfasst die Lichtscheibe Licht streuende Elemente. Die Lichtscheibe umfasst insbesondere sowohl auf der der ersten Lichtquelle zugewandten Seite als auch auf der der ersten Lichtquelle abgewandten Seite Licht streuende Elemente. Bevorzugt erstrecken sich die Licht streu- enden Elemente auf der der ersten Lichtquelle abgewandten Seite in horizontaler Richtung. Es sind insbesondere horizontal ausgerichtete Teilwalzen. Auf der der ersten Lichtquelle zugewandten Seite erstrecken sich bevorzugt Licht streuende Elemente in vertikaler Richtung. Auch in diesem Fall kann es sich um vertikal ausgerichtete Teilwalzen handeln. Die Teilwalzen können im Querschnitt auf der Lichteintritts- bzw. Lichtaustrittsseite die Form eines Kreis- oder Parabelabschnitts oder eine andere konvexe Krümmung haben, die sich im Wesentlichen aus der gewünschten Lichtstreuung ergibt. Die Licht streuenden Elemente auf der von der ersten Lichtquelle abgewandten Seite sind dabei bevorzugt besonders markant ausgebildet. Sie haben eine andere Krümmung bzw. Rundung als die Licht streuenden Elemente auf der der ersten Lichtquelle zugewandten Sei- te. Die Krümmung der horizontal ausgerichteten Teilwalzen auf der der ersten Lichtquelle abgewandten Seite der Lichtscheibe ist insbesondere kleiner als die Krümmung der vertikal ausgerichteten Teilwalzen auf der der ersten Lichtquelle zugewandten Seite. Diese Gestaltung hat zur Folge, dass die Teilwalzen auf der Außenseite von außen sehr markant sichtbar sind.According to a further embodiment of the luminaire according to the invention, the lens comprises light-scattering elements. In particular, the lens comprises light-scattering elements both on the side facing the first light source and on the side remote from the first light source. Preferably, the light-scattering elements extend on the side facing away from the first light source in the horizontal direction. In particular, they are horizontally oriented sub-rollers. On the side facing the first light source, light-scattering elements preferably extend in the vertical direction. Also in this case, it may be vertically oriented part rollers. The sub-rollers can have the shape of a circular or parabolic section or another convex curvature in cross-section on the light entrance or light exit side, which results essentially from the desired light scattering. The light-scattering elements on the side facing away from the first light source side are preferably formed particularly distinctive. They have a different curvature or curvature than the light-scattering elements on the side facing the first light source. The curvature of the horizontally oriented sub-rollers on the side facing away from the first light source side of the lens is in particular smaller than the curvature of the vertically oriented sub-rollers on the side facing the first light source side. This design has the consequence that the part rollers on the outside from the outside are very clearly visible.
Die Licht streuenden Elemente der Lichtscheibe sorgen dafür, dass das von den Reflektorflächen auf die Lichtscheibe treffende parallele bzw. annähernd parallele Licht in die gewünschten Winkel gestreut wird. Dabei werden die Licht streuenden Elemente so gestaltet, dass die Kontur der Lichtscheibe auf der von außen sichtbaren Seite den ästheti- sehen Anforderungen, d.h. dem gewünschten Design, entspricht, wohingegen die Licht streuenden Elemente auf der Rückseite, d.h. auf der der Lichtquelle zugewandten Seite, die Hauptfunktion der Lichtstreuung, insbesondere die Funktion der horizontalen Licht- Streuung, übernimmt. Durch die auf der von außen sichtbaren Seite der Lichtscheibe wird somit eine bestimmte Lichtstreuung erzeugt. Die gewünschte Lichtstreuung wird jedoch erst durch die Ergänzung der Licht streuenden Elemente auf der von außen nicht sichtbaren Seite erzeugt.The light-scattering elements of the lens ensure that the parallel or approximately parallel light striking the lens from the reflector surfaces is scattered at the desired angles. Here, the light-scattering elements are designed so that the contour of the lens on the visible side from the outside aesthetic requirements, ie the desired design corresponds, whereas the light-scattering elements on the back, ie on the side facing the light source, the main function of light scattering, especially the function of horizontal light Scattering, takes over. Due to the visible on the outside of the lens a certain light scattering is thus generated. However, the desired light scattering is only generated by the addition of the light-scattering elements on the side not visible from the outside.
Als weiterer Vorteil ergibt sich bei der erfindungsgemäßen Leuchte, dass die Leuchtflächen eine sehr homogene Leuchtdichteverteilung besitzen. Die von den Reflektorflächen erzeugten parallelen bzw. annähernd parallelen Lichtstrahlen werden nämlich erst bei der Lichtscheibe gestreut. Aus diesem Grund ist es nicht möglich eine Lichtquelle inner- halb einer Leuchtfläche zu identifizieren. Bei bekannten Leuchten , bei denen die Lichtemission mehrerer Lichtquellen für eine Leuchtfläche verwendet wird, hat es sich ergeben, dass insbesondere aus großen Entfernungen Bereiche mit größerer Lichtintensität innerhalb einer Leuchtfläche gebildet werden. Diese Bereiche größerer Lichtintensität kann der Bertachter den einzelnen Lichtquellen zuordnen.A further advantage of the luminaire according to the invention is that the luminous surfaces have a very homogeneous luminance distribution. The parallel or approximately parallel light beams generated by the reflector surfaces are namely scattered only at the lens. For this reason, it is not possible to identify a light source within a luminous area. In known luminaires, in which the light emission of a plurality of light sources is used for a luminous area, it has been found that regions with greater light intensity are formed within a luminous area, particularly from large distances. These areas of greater light intensity can assign the Bertachter the individual light sources.
Gemäß einer weiteren Ausgestaltung der erfindungsgemäßen Leuchte ist die Lichtscheibe oder sind die Licht streuenden Elemente der Lichtscheibe nur im Bereich der Leuchtflächen der Leuchte angeordnet. Bei der Lichtscheibe kann es sich somit um zwei getrennte Lichtscheiben handeln. Ferner können auch nur die Licht streuenden Elemente in diesen Bereichen vorgesehen sein, die Lichtscheibe aber ansonsten zusammenhängend sein.According to a further embodiment of the luminaire according to the invention, the lens or the light-scattering elements of the lens are arranged only in the region of the luminous surfaces of the luminaire. The lens can thus be two separate lenses. Furthermore, only the light-scattering elements may be provided in these areas, but the lens may be otherwise contiguous.
Gemäß einer weiteren Ausgestaltung der erfindungsgemäßen Leuchte ist die erste Lichtquelle von einer Maske abgeschirmt, die eine direkte Sicht von außen auf die erste Licht- quelle verhindert. Auf diese Weise wird sichergestellt, dass man von außen nur die beiden Leuchtflächen wahrnimmt, nicht die Lichtquellen selbst.According to a further embodiment of the luminaire according to the invention, the first light source is shielded by a mask which prevents a direct view from the outside onto the first light source. In this way it is ensured that from the outside only the two light surfaces perceived, not the light sources themselves.
Gemäß einer weiteren Ausgestaltung der erfindungsgemäßen Leuchte weist diese ein Gehäuse auf, welches von einer Abschlussscheibe in Lichtaustrittsrichtung geschlossen ist. Die Lichtscheibe ist in diesem Fall innerhalb des Gehäuses angeordnet. Sie bildet somit eine Zwischenlichtscheibe. Die Abschlussscheibe ist bevorzugt in Klarglasoptik ausgeführt, d.h. man kann von außen ohne wesentliche Beeinträchtigung ins Innere des Gehäuses hineinsehen. Das Erscheinungsbild der Leuchte wird somit von der Zwischenlichtscheibe mit den Licht streuenden Elementen auf der Außenseite sowohl im einge- schalteten Zustand der Lichtquelle als auch im ausgeschalteten Zustand der Lichtquellen bestimmt. Auf der Außenseite der Zwischenlichtscheibe werden die Leuchtflächen gebildet, welche durch die Abschlussscheibe hindurch sichtbar sind. Die erste Leuchtfläche kann gemäß einer Ausgestaltung der erfindungsgemäßen Leuchte eine Scheiben- oder Rechteckform, die zweite Leuchtfläche eine Winkelform besitzen.According to a further embodiment of the luminaire according to the invention, this has a housing which is closed by a cover plate in the light exit direction. The lens is arranged in this case within the housing. It thus forms an intermediate lens. The lens is preferably designed in clear glass optics, ie you can see from the outside without significant impairment into the interior of the housing. The appearance of the lamp is thus determined by the intermediate lens with the light-scattering elements on the outside both in the switched-on state of the light source and in the off state of the light sources. On the outside of the intermediate lens, the luminous surfaces are formed, which are visible through the lens. According to one embodiment of the luminaire according to the invention, the first luminous surface may have a disc or rectangle shape, the second luminous surface may have an angular shape.
Die Erfindung wird nun anhand eines Ausführungsbeispiels mit Bezug zu den Zeichnungen erläutert.The invention will now be explained with reference to an embodiment with reference to the drawings.
Fig. 1 zeigt schematisch eine perspektivische Darstellung eines Ausführungsbeispiels der erfindungsgemäßen Leuchte, Fig. 2 zeigt eine andere perspektivische Darstellung des Ausführungsbeispiels der erfindungsgemäßen Leuchte,1 shows schematically a perspective view of an embodiment of the luminaire according to the invention, FIG. 2 shows another perspective view of the embodiment of the luminaire according to the invention,
Fig. 3 zeigt eine perspektivische Darstellung des Ausführungsbeispiels der erfindungsgemäßen Leuchte von hinten,3 shows a perspective view of the embodiment of the luminaire according to the invention from behind,
Fig. 4 zeigt einen Schnitt durch das Ausführungsbeispiel der erfindungsgemäßen Leuch- te und4 shows a section through the exemplary embodiment of the luminaires according to the invention and FIG
Fig. 5 zeigt ein Detail des Ausführungsbeispiels der erfindungsgemäßen Leuchte.Fig. 5 shows a detail of the embodiment of the lamp according to the invention.
Mit Bezug zu den Fig. 1 bis 3 wird zunächst der grundsätzliche Aufbau der Leuchte beschrieben. Bei der Leuchte des gezeigten Ausführungsbeispiels handelt es sich um eine Heckleuchte. Die Richtungsangaben, wie horizontal, vertikal und seitlich, beziehen sich im Folgenden auf einen Einbau der Leuchte in einem Fahrzeug.With reference to FIGS. 1 to 3, the basic structure of the luminaire will first be described. In the lamp of the embodiment shown is a tail light. The directions, such as horizontal, vertical and lateral, refer in the following to an installation of the lamp in a vehicle.
Die Leuchte umfasst eine Lichtquelle 1. Hierbei kann es sich um eine an sich bekannte Lichtquelle 1 handeln, die so punktförmig wie möglich ist. Bezüglich der Lichtemissions- richtung der Leuchte ist die Lichtquelle 1 vor einem Reflektor 3 angeordnet. Üblicherweise weist der Reflektor 3 hierfür eine Öffnung auf, durch welche eine Haltung für die Lichtquelle 1 durchtreten kann. Der Ort, bei welchem die Lichtemission erzeugt wird, befindet sich jedoch hinsichtlich der Lichtemissionsrichtung der Leuchte vor dem Reflektor. Dabei ist es selbstverständlich möglich, dass seitlich neben der Lichtquelle 1 Reflek- torbereiche gebildet sind, die sich bis vor die Lichtquelle erstrecken. Auf einer Achse, die parallel zu der Lichtemissionsrichtung der Leuchte durch die Lichtquelle 1 verläuft, befindet sich die Lichtquelle jedoch vor Reflektorflächenbereichen, die an die Lichtquelle 1 angrenzen.The light comprises a light source 1. This may be a known light source 1, which is as punctiform as possible. With regard to the light emission direction of the luminaire, the light source 1 is arranged in front of a reflector 3. Usually, the reflector 3 for this purpose has an opening through which an attitude for the light source 1 can pass. However, the location where the light emission is generated is in front of the reflector with respect to the light emission direction of the lamp. It is of course possible that reflector areas are formed laterally next to the light source 1, which extend to the light source. On an axis which is parallel to the light emission direction of the luminaire through the light source 1, however, the light source is located in front of reflector surface areas which adjoin the light source 1.
Der Reflektor 3 zeichnet sich dadurch aus, dass er eine Öffnung 5 aufweist. Die Öffnung 5 ist in diesem Fall keine Öffnung, durch welche eine Halterung einer Lichtquelle hindurchtritt, damit die Lichtquelle in dem Reflektor aufgenommen werden kann. Vielmehr umfasst die Leuchte eine zweite Lichtquelle 2, die bezüglich der Lichtemissionsrichtung der Leuchte hinter einem Teil 4 des Reflektors 3 angeordnet ist. Das von der Lichtquelle 2 emittierte Licht tritt durch diese Öffnung 5 hindurch und trifft auf einen Bereich der Reflektorfläche des Reflektors 3 und wird dort reflektiert. Der Teil 4 des Reflektors 3 dient somit dazu, die Lichtquelle 2 bei einer Betrachtung der Leuchte von außen zu verdecken. Die durch den Teil 4 gebildete Öffnung 5 ermöglicht es jedoch, dass das von der Lichtquelle 2 emittierte Licht auf Reflektorflächen des Reflektors 3 trifft und zu einem Teil der Lichtemission der Leuchte wird.The reflector 3 is characterized in that it has an opening 5. The opening 5 in this case is not an opening through which a holder of a light source passes, so that the light source can be accommodated in the reflector. Much more the lamp comprises a second light source 2, which is arranged with respect to the light emission direction of the lamp behind a part 4 of the reflector 3. The light emitted by the light source 2 passes through this opening 5 and strikes a portion of the reflector surface of the reflector 3 and is reflected there. The part 4 of the reflector 3 thus serves to conceal the light source 2 when viewing the lamp from the outside. However, the opening 5 formed by the part 4 makes it possible for the light emitted by the light source 2 to strike reflector surfaces of the reflector 3 and to become part of the light emission of the luminaire.
Die Anordnung der zweiten Lichtquelle 2 hinter dem Teil 4 des Reflektors 3 ist so zu verstehen, dass ein Lichtstrahl, der von der zweiten Lichtquelle 2 in Richtung der Lichtemissionsrichtung L (Fig. 4) der Leuchte emittiert wird, nicht ungehindert den Teil 4 des Reflektors 3 passieren kann, sondern an der Rückseite des Teils 4 des Reflektors 3 absorbiert oder gestreut wird. Des Weiteren kann es vorgesehen sein, dass die von der zwei- ten Lichtquelle 2 emittierten Lichtstrahlen, welche durch die Öffnung 5 hindurch treten, entweder absorbiert werden oder von einer Reflektorfläche des Reflektors 3 reflektiert werden. In diesem Fall ist aus keinem Winkel von außen eine direkte Sicht auf die zweite Lichtquelle 2 möglich, so dass diese für den Betrachter von außen in jedem Fall unsichtbar bleibt.The arrangement of the second light source 2 behind the part 4 of the reflector 3 is to be understood such that a light beam emitted by the second light source 2 in the direction of the light emission direction L (FIG. 4) of the luminaire does not unhinder the part 4 of the reflector 3 can happen, but is absorbed or scattered at the back of the part 4 of the reflector 3. Furthermore, it can be provided that the light beams emitted by the second light source 2, which pass through the opening 5, are either absorbed or reflected by a reflector surface of the reflector 3. In this case, from any angle from the outside, a direct view of the second light source 2 is possible, so that it remains invisible to the viewer from the outside in any case.
Wie in Fig. 2 gezeigt, weist der Reflektor 3 verschiedene Bereiche mit Reflektorflächen auf. Diese Bereiche sind in der Fig. 2 mit A1 , A2 und B bezeichnet. Die restlichen Flächen des Reflektors 3 sind lichttechnisch nicht wirksam. Beispielsweise kann das auf diese restlichen Flächen auftreffende Licht der Lichtquellen 1 und 2 absorbiert werden. Der Reflektor 3 ist zusammenhängend, insbesondere einteilig, ausgebildet.As shown in Fig. 2, the reflector 3 on different areas with reflector surfaces. These areas are designated in FIG. 2 by A1, A2 and B. The remaining surfaces of the reflector 3 are technically not effective. For example, the light of the light sources 1 and 2 impinging on these remaining surfaces can be absorbed. The reflector 3 is continuous, in particular in one piece, formed.
Auf die Reflektorflächen A1 und B trifft das von der ersten Lichtquelle 1 emittierte Licht, auf die Reflektorfläche A2 trifft das von der zweiten Lichtquelle 2 emittierte Licht.The light emitted by the first light source 1 hits the reflector surfaces A1 and B, and the light emitted by the second light source 2 strikes the reflector surface A2.
Des Weiteren bilden die bei den Reflektorflächenbereichen A1 und A2 reflektierten Lichtstrahlen eine erste Leuchtfläche und die von dem Reflektorflächenbereich B reflektierten Lichtstrahlen eine zweite Leuchtfläche, wie es später erläutert wird. Die beiden Leuchtflächen zeichnen sich dadurch aus, dass sie nicht zusammenhängend sind.Furthermore, the light beams reflected at the reflector surface areas A1 and A2 form a first luminous area, and the light beams reflected from the reflector area area B form a second luminous area, as will be explained later. The two illuminated areas are characterized by the fact that they are not connected.
Bei dem Reflektor 3 handelt es sich um einen so genannten Freiform reflektor. Die Freiformreflektorflächen sind dabei so auf die Anordnung der Lichtquellen 1 und 2 ange- passt, dass von den Freiformreflektorflächen ein paralleles bzw. annähernd paralleles Lichtbündel erzeugt wird. In diesem Sinne sind die Lichtquellen 1 und 2 somit in Brennpunkten der Freiformreflektorflächen angeordnet.The reflector 3 is a so-called free-form reflector. The free-form reflector surfaces are adapted to the arrangement of the light sources 1 and 2 such that of the free-form reflector surfaces a parallel or approximately parallel Light beam is generated. In this sense, the light sources 1 and 2 are thus arranged in focal points of the free-form reflector surfaces.
Mit Bezug zu Fig. 4 wird der weitere Strahlengang des von dem Reflektor 3 erzeugten Lichtbündels erläutert:With reference to FIG. 4, the further beam path of the light beam generated by the reflector 3 is explained:
Die Bereiche A1 und A2 der Reflektorfläche des Reflektors 3 erzeugen ein erstes zusammenhängendes Lichtbündel L1. Der Bereich B der Reflektorfläche des Reflektors 3 erzeugt ein zweites zusammenhängendes Lichtbündel L2, welches getrennt von dem Lichtbündel L1 ist. Das erste Lichtbündel L1 trifft auf eine als Zwischenlichtscheibe 6 ausgebildete Lichtscheibe. Die Zwischenlichtscheibe 6 weist auf der der Lichtquelle 1 zugewandten Seite Licht streuende Elemente 15 und auf der der Lichtquelle 1 abgewandten Seite, d.h. auf der von außen sichtbaren Seite, Licht streuende Elemente 13 auf. Von diesen Licht streuenden Elementen 15 und 13 wird das Licht in vertikaler und horizontaler Richtung abgelenkt und eine erste Leuchtfläche 17 gebildet, wie es später erläutert wird.The areas A1 and A2 of the reflector surface of the reflector 3 generate a first continuous light bundle L1. The region B of the reflector surface of the reflector 3 generates a second coherent light beam L2, which is separate from the light beam L1. The first light beam L1 strikes a light disk formed as an intermediate lens 6. The intermediate lens 6 has on the light source 1 side facing light scattering elements 15 and on the light source 1 side facing away, i. on the visible side from the outside, light scattering elements 13. Of these light-scattering elements 15 and 13, the light is deflected in the vertical and horizontal directions and a first luminous surface 17 is formed, as will be explained later.
Das zweite Lichtbündel L2 trifft auf eine zweite Zwischenlichtscheibe 7. Im vorliegenden Ausführungsbeispiel weist die Zwischenlichtscheibe 7, wie die Zwischenlichtscheibe 6, auf der der Lichtquelle 1 zugewandten Seite Licht streuende Elemente 16 und auf der der Lichtquelle 1 abgewandten Seite Licht streuende Elemente 14 auf. Dabei können die Licht streuenden Elemente 13 und 14 der Zwischenlichtscheiben 6 und 7, die auf der von der Lichtquelle 1 abgewandten Seite angeordnet sind, identisch geformt sein. Von der Zwischenlichtscheibe 7 wird eine zweite Leuchtfläche gebildet, die sich dadurch aus- zeichnet, dass sie nicht mit der ersten Leuchtfläche, die bei der Zwischenlichtscheibe 6 gebildet ist, zusammenhängt. Es werden somit von einem einzigen zusammenhängenden Reflektor 3 zwei separate Leuchtflächen geschaffen.The second light beam L2 impinges on a second intermediate light disk 7. In the present embodiment, the intermediate lens 7, like the intermediate lens 6, on the light source 1 side facing light scattering elements 16 and on the side facing away from the light source 1 light scattering elements 14. In this case, the light-scattering elements 13 and 14 of the intermediate lenses 6 and 7, which are arranged on the side facing away from the light source 1, be formed identically. From the intermediate lens 7, a second luminous surface is formed, which is characterized in that it is not related to the first luminous surface which is formed in the intermediate lens 6. There are thus created by a single coherent reflector 3 two separate lighting areas.
Die Leuchte ist innerhalb eines Gehäuses 12 vorgesehen, welche von einer Abschluss- scheibe 8 nach außen abgeschlossen ist. Die Abschlussscheibe 8 ist in Klarglasoptik ausgeführt, so dass die von den Zwischenlichtscheiben 6 und 7 ausgehenden Lichtstrahlen hinsichtlich ihrer Richtung im Wesentlichen nicht von der Abschlussscheibe 8 beein- flusst werden.The luminaire is provided within a housing 12, which is closed off from a cover disc 8 to the outside. The lens 8 is designed in clear glass optics, so that the rays of light emanating from the intermediate lenses 6 and 7 are essentially not influenced by the lens 8 with respect to their direction.
Die Zwischenlichtscheiben 6 und 7 sind senkrecht zu der Lichtemissionsrichtung L der Leuchte angeordnet. In dieser Ebene senkrecht zu der Richtung L befindet sich zwischen den beiden Zwischenlichtscheiben 6 und 7 eine Maske 9, oberhalb und unterhalb der Zwischenlichtscheiben 6 und 7 befinden sich ferner die Masken 10 und 1 1. Die Maske 9 schirmt dabei die erste Lichtquelle 1 so ab, dass sie eine direkte Sicht von außen auf die Lichtquelle 1 verhindert. Die Masken 10 und 1 1 verhindern ferner, dass man von außen seitlich in die Leuchte hineinsehen kann. Von außen sind somit nur die Licht streuenden Elemente 13 und 14 der von der Lichtquelle 1 abgewandten Seiten der Zwischenlichtscheiben 6 und 7 zu sehen, welche die beiden Leuchtflächen bilden. Die erste Lichtquelle 1 wird somit von der Maske 9 abgeschirmt, so dass sie von außen nicht sichtbar ist, die zweite Lichtquelle 2 wird durch den Teil 4 des Reflektors 3 abgeschirmt, so dass auch sie von außen nicht sichtbar ist.The intermediate lenses 6 and 7 are arranged perpendicular to the light emission direction L of the lamp. In this plane perpendicular to the direction L is located between the two intermediate lenses 6 and 7, a mask 9, above and below the intermediate lenses 6 and 7 are also the masks 10 and 1 1. The mask 9 shields the first light source 1 from so that it prevents a direct view from the outside of the light source 1. The masks 10 and 1 1 also prevent that you can see from the outside laterally into the light. From the outside, therefore, only the light-scattering elements 13 and 14 of the light source 1 facing away from the sides of the intermediate lenses 6 and 7 can be seen, which form the two illuminated surfaces. The first light source 1 is thus shielded by the mask 9, so that it is not visible from the outside, the second light source 2 is shielded by the part 4 of the reflector 3, so that it is not visible from the outside.
Wie in Fig. 1 gezeigt, kann die Leuchte im Querschnitt von den Masken 9, 10 und 1 1 sowie den Zwischenlichtscheiben 6 und 7 abgeschlossen sein. Die Masken 9 bis 1 1 , insbesondere die Maske 9, könnte jedoch auch getrennt von den Zwischenlichtscheiben 6 und 7 vorgesehen sein. Die Zwischenlichtscheiben 6 und 7 könnten in diesem Fall von einer einzigen Zwischenlichtscheibe gebildet sein, wobei die Licht streuenden Elemente 13 bis 16 nur im Bereich der gewünschten Leuchtflächen angeordnet sind.As shown in Fig. 1, the lamp in cross section of the masks 9, 10 and 1 1 and the intermediate lenses 6 and 7 can be completed. The masks 9 to 1 1, in particular the mask 9, but could also be provided separately from the intermediate lenses 6 and 7. The intermediate lenses 6 and 7 could be formed in this case by a single intermediate lens, the light-scattering elements 13 to 16 are arranged only in the region of the desired luminous surfaces.
Fig. 5 zeigt ein Detail der Zwischenlichtscheibe 7. Die Zwischenlichtscheibe 6 ist entsprechend geformt. Auf der von außen sichtbaren Seite besitzt die Zwischenlichtscheibe 7 Licht streuende Elemente 14, die sich in horizontaler Richtung erstrecken. Es handelt sich um Teilwalzen. Die Krümmung der Oberfläche kann kreisförmig oder eine andere konvex gekrümmte Form besitzen. Durch diese sich horizontal erstreckenden Licht streuenden Elemente 14 wird das parallele einfallende Lichtbündel in vertikaler Richtung gestreut. Die Form der Licht streuenden Elemente 14 richtet sich jedoch insbesondere nach dem Design, welches die Leuchte erhalten soll, da diese Licht streuenden Elemente 14 von außen sichtbar sind.Fig. 5 shows a detail of the intermediate lens 7. The intermediate lens 6 is shaped accordingly. On the visible side from the outside, the intermediate lens 7 has light-scattering elements 14 which extend in the horizontal direction. These are part rolls. The curvature of the surface may be circular or have another convexly curved shape. By these horizontally extending light scattering elements 14, the parallel incident light beam is scattered in the vertical direction. The shape of the light-scattering elements 14, however, depends in particular on the design which the luminaire is to receive, since these light-scattering elements 14 are visible from the outside.
Auf der Innenseite der Zwischenlichtscheibe 7 sind Licht streuende Elemente 16 angeordnet, die sich in vertikaler Richtung erstrecken. Auch in diesem Fall handelt es sich um Teilwalzen, deren Krümmung sich jedoch von der Krümmung der Teilwalzen der Licht streuenden Elemente 14 unterscheidet. Die Krümmung der Licht streuenden Elemente 16 ist größer, so dass pro Längeneinheit mehr Licht streuende Elemente 16 auf der Zwischenlichtscheibe 7 angeordnet sind, als Licht streuende Elemente 14. Die Licht streuenden Elemente 16 bewirken in eine Ablenkung des parallel einfallenden Lichtbündels in horizontaler Richtung. Sie bestimmen somit im Wesentlichen, aus welchen Winkeln die Leuchte von anderen Verkehrsteilnehmern sichtbar sind. Bei der Gestaltung der Licht streuenden Elemente 16 müssen Aspekte des Designs nicht berücksichtigt werden, da sie im Wesentlichen von außen nicht sichtbar sind. Sie können so gewählt werden, dass die optischen Anforderungen an die Leuchte erfüllt sind. On the inside of the intermediate lens 7 light-scattering elements 16 are arranged, which extend in the vertical direction. In this case too, there are partial rolls whose curvature differs from the curvature of the partial rolls of the light-scattering elements 14. The curvature of the light-scattering elements 16 is greater, so that more light-scattering elements 16 are arranged on the intermediate lens 7 per unit length, as light-scattering elements 14. The light-scattering elements 16 cause a deflection of the parallel incident light beam in the horizontal direction. They thus essentially determine from which angles the luminaire is visible to other road users. In designing the light-diffusing elements 16, aspects of the design need not be taken into account they are essentially invisible from the outside. They can be chosen so that the optical requirements of the lamp are met.
BEZUGSZEICHENLISTELIST OF REFERENCE NUMBERS
1 erste Lichtquelle1 first light source
2 zweite Lichtquelle2 second light source
3 Reflektor3 reflector
4 Teil des Reflektors4 part of the reflector
5 Öffnung5 opening
6 Zwischenlichtscheibe6 intermediate lens
7 Zwischenlichtscheibe7 intermediate lens
8 Abschlussscheibe8 lens
9 Maske9 mask
10 Maske10 mask
11 Maske11 mask
12 Gehäuse12 housing
13 Licht streuende Elemente13 light-scattering elements
14 Licht streuende Elemente14 light-scattering elements
15 Licht streuende Elemente15 light-scattering elements
16 Licht streuende Elemente 16 light-scattering elements

Claims

P AT E N T A N S P R Ü C H E P AT TESTS
1. Leuchte für ein Fahrzeug mit1. Lamp for a vehicle with
- einem zusammenhängenden Reflektor (3) mit mehreren Reflektorflächenberei- chen (A1 , A2, B) und- a coherent reflector (3) with several Reflektorflächenberei- chen (A1, A2, B) and
- einer ersten Lichtquelle (1 ), die so angeordnet ist, dass ihre Lichtemission von einem ersten Bereich (A1 , B) der Reflektorfläche des Reflektors (3) reflektiert wird, dadurch gekennzeichnet, dass - der Reflektor (3) eine Öffnung (5) aufweist und- A first light source (1) which is arranged so that its light emission from a first region (A1, B) of the reflector surface of the reflector (3) is reflected, characterized in that - the reflector (3) has an opening (5) and
- eine zweite Lichtquelle vorgesehen ist, die bezüglich der Lichtemissionsrichtung (L) der Leuchte hinter einem Teil (4) des Reflektors (3) angeordnet ist und deren Lichtemission durch die Öffnung (5) hindurch auf einen zweiten Bereich (A2) der Reflektorfläche des Reflektors (3) trifft und dort reflektiert wird.- A second light source is provided, which is arranged with respect to the light emission direction (L) of the lamp behind a part (4) of the reflector (3) and the light emission through the opening (5) through a second region (A2) of the reflector surface of the reflector (3) meets and is reflected there.
2. Leuchte nach Anspruch 1 , dadurch gekennzeichnet, dass der Reflektor (3) einen Einschnitt aufweist, ein von dem Einschnitt gebildeter Teil (4) des Reflektors (3) in Lichtemissionsrichtung (L) der Leuchte nach vorne gebogen ist und hinter dem nach vorne gebogenen Teil (4) des Reflektors (3) die zweite Lichtquelle (2) angeordnet ist.2. Lamp according to claim 1, characterized in that the reflector (3) has an incision, formed by the incision portion (4) of the reflector (3) in the light emission direction (L) of the lamp is bent forward and behind the forward bent part (4) of the reflector (3), the second light source (2) is arranged.
3. Leuchte nach Anspruch 2, dadurch gekennzeichnet, dass der nach vorne gebogene Teil (4) des Reflektors (3) schaufeiförmig ausgebildet ist.3. Lamp according to claim 2, characterized in that the bent-forward part (4) of the reflector (3) is formed schaufeiförmig.
4. Leuchte nach Anspruch 2 oder 3, dadurch gekennzeichnet, dass durch den nach vorne gebogene Teil (4) des Reflektors (3) die direkte Sicht von außen auf die zweite Lichtquelle (2) verhindert wird.4. Lamp according to claim 2 or 3, characterized in that the direct view from the outside to the second light source (2) is prevented by the bent forward part (4) of the reflector (3).
5. Leuchte nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die erste Lichtquelle (1 ) im Brennpunkt der Bereiche der Reflektorfläche des Reflektors (3) angeordnet ist, welche die Lichtemission der ersten Lichtquelle (1 ) reflektieren und die zweite Lichtquelle (2) im Brennpunkt der Bereiche der Reflektorfläche des Reflektors (3) angeordnet ist, welche die Lichtemission der zweiten Lichtquelle (2) reflektieren.5. Lamp according to one of the preceding claims, characterized in that the first light source (1) is arranged at the focal point of the areas of the reflector surface of the reflector (3) which reflect the light emission of the first light source (1) and the second light source (2) is arranged in the focal point of the areas of the reflector surface of the reflector (3) is, which reflect the light emission of the second light source (2).
6. Leuchte nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass zumindest eine Lichtscheibe (6, 7) vorgesehen ist, auf die das von den Re- flektorflächen reflektierte Licht trifft und bei der zumindest zwei nicht zusammenhängende Leuchtflächen gebildet werden.6. Luminaire according to one of the preceding claims, characterized in that at least one lens (6, 7) is provided, on which the reflector surfaces of the reflected reflector light hits and in which at least two non-contiguous luminous surfaces are formed.
7. Leuchte nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die zumindest eine Lichtscheibe (6, 7) sowohl auf der der ersten Lichtquelle7. Lamp according to one of the preceding claims, characterized in that the at least one lens (6, 7) both on the first light source
(1 ) zugewandten Seite als auch auf der der ersten Lichtquelle (1 ) abgewandten Seite Licht streuende Elemente (13 bis 16) umfasst.(1) facing side and on the side facing away from the first light source (1) side light scattering elements (13 to 16).
8. Leuchte nach Anspruch 7, dadurch gekennzeichnet, dass sich die Licht streuenden Elemente (13, 14) auf der der ersten Lichtquelle (1 ) abgewandten Seite in horizontaler Richtung erstrecken.8. Luminaire according to claim 7, characterized in that the light-scattering elements extend (13, 14) on the side facing away from the first light source (1) in the horizontal direction.
9. Leuchte nach Anspruch 8, dadurch gekennzeichnet, dass die Licht streuenden Elemente (13, 14) auf der der ersten Lichtquelle (1 ) abgewandten Seite horizontal ausgerichtete Teilwalzen sind.9. Luminaire according to claim 8, characterized in that the light-scattering elements (13, 14) on the side facing away from the first light source (1) side horizontally oriented part rollers.
10. Leuchte nach einem der Ansprüche 7 bis 9, dadurch gekennzeichnet, dass sich die Licht streuenden Elemente (15, 16) auf der der ersten Lichtquelle (1 ) zugewandten Seite in vertikaler Richtung erstrecken.10. Lamp according to one of claims 7 to 9, characterized in that the light-scattering elements (15, 16) on the first light source (1) side facing in the vertical direction.
1 1. Leuchte nach einem der Ansprüche 7 bis 10, dadurch gekennzeichnet, dass die zumindest eine Lichtscheibe (6, 7) oder die Licht streuenden Elemente (13 bis 16) der Lichtscheibe (6, 7) nur im Bereich der Leuchtflächen der Leuchte angeordnet ist/sind.1 1. Lamp according to one of claims 7 to 10, characterized the at least one light disc (6, 7) or the light-scattering elements (13 to 16) of the light disc (6, 7) is / are arranged only in the region of the luminous surfaces of the luminaire.
12. Leuchte nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die erste Lichtquelle (1 ) von einer Maske (9) abgeschirmt ist, die eine direkte Sicht von außen auf die erste Lichtquelle (1 ) verhindert.12. Light according to one of the preceding claims, characterized in that the first light source (1) from a mask (9) is shielded, which prevents a direct view from the outside to the first light source (1).
13. Leuchte nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Leuchte ein Gehäuse (12) aufweist, welches von einer Abschlussscheibe (8) in Lichtaustrittsrichtung (L) abgeschlossen ist, und dass die zumindest eine Lichtscheibe (6, 7) innerhalb des Gehäuses (12) angeordnet ist. 13. Luminaire according to one of the preceding claims, characterized in that the lamp has a housing (12) which is closed by a cover plate (8) in the light exit direction (L), and that the at least one lens (6, 7) within the Housing (12) is arranged.
EP10706612.8A 2009-02-27 2010-02-26 Vehicular headlight Active EP2401544B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009010829A DE102009010829A1 (en) 2009-02-27 2009-02-27 vehicle light
PCT/EP2010/052507 WO2010097473A1 (en) 2009-02-27 2010-02-26 Vehicle light

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Publication Number Publication Date
EP2401544A1 true EP2401544A1 (en) 2012-01-04
EP2401544B1 EP2401544B1 (en) 2018-09-05

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US (1) US9316375B2 (en)
EP (1) EP2401544B1 (en)
KR (1) KR101627884B1 (en)
CN (1) CN102333988B (en)
DE (1) DE102009010829A1 (en)
RU (1) RU2507442C2 (en)
WO (1) WO2010097473A1 (en)

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Publication number Publication date
CN102333988A (en) 2012-01-25
RU2011139291A (en) 2013-04-10
KR101627884B1 (en) 2016-06-07
US20120039085A1 (en) 2012-02-16
KR20110134413A (en) 2011-12-14
US9316375B2 (en) 2016-04-19
DE102009010829A1 (en) 2010-09-02
RU2507442C2 (en) 2014-02-20
WO2010097473A1 (en) 2010-09-02
EP2401544B1 (en) 2018-09-05
CN102333988B (en) 2014-11-05

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