DE102010049408A1 - Interior light for use as ceiling light in inner space of motor car, has light conductors transilluminated by light of light sources transverse to plane of exit surface in vehicle inner space, where sources emit white and/or colored light - Google Patents
Interior light for use as ceiling light in inner space of motor car, has light conductors transilluminated by light of light sources transverse to plane of exit surface in vehicle inner space, where sources emit white and/or colored light Download PDFInfo
- Publication number
- DE102010049408A1 DE102010049408A1 DE102010049408A DE102010049408A DE102010049408A1 DE 102010049408 A1 DE102010049408 A1 DE 102010049408A1 DE 102010049408 A DE102010049408 A DE 102010049408A DE 102010049408 A DE102010049408 A DE 102010049408A DE 102010049408 A1 DE102010049408 A1 DE 102010049408A1
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- DE
- Germany
- Prior art keywords
- light
- interior
- exit surface
- sources
- guide
- 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.)
- Ceased
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Classifications
-
- 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
- G02B6/0066—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 characterised by the light source being coupled to the light guide
- G02B6/0068—Arrangements of plural sources, e.g. multi-colour light sources
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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
- B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
- B60Q3/60—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by optical aspects
- B60Q3/62—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by optical aspects using light guides
- B60Q3/64—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by optical aspects using light guides for a single lighting device
-
- 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
- B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
- B60Q3/70—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by the purpose
- B60Q3/74—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by the purpose for overall compartment lighting; for overall compartment lighting in combination with specific lighting, e.g. room lamps with reading lamps
-
- 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
- G02B6/0045—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 by shaping at least a portion of the light guide
- G02B6/0046—Tapered light guide, e.g. wedge-shaped light guide
-
- 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
- G02B6/0095—Light guides as housings, housing portions, shelves, doors, tiles, windows, or the like
Abstract
Description
Die Erfindung bezieht sich auf eine Innenleuchte für Fahrzeuge, insbesondere für Kraftfahrzeuge, mit einem flächigen Lichtleiter aus einem transparenten Material, dessen eine Oberfläche eine einem Fahrzeuginnenraum zugewandte Lichtaustrittsfläche bildet und in dessen umlaufenden Rand von mindestens einer Lichtquelle Licht an einem Einkoppelbereich des Lichtleiters einkoppelbar und zur Lichtaustrittsfläche umlenkbar ist.The invention relates to an interior light for vehicles, in particular for motor vehicles, having a planar light guide of a transparent material, one surface of which forms a vehicle interior facing light exit surface and in the circumferential edge of at least one light source coupled to a coupling region of the light guide and the Light exit surface is deflected.
Eine derartige bekannte Innenleuchte (
Aufgabe der Erfindung ist, es eine Innenleuchte der eingangs genannten Art zu schaffen, die bei einfachem Aufbau sowohl die Funktion einer Leseleuchte als auch die Funktion einer Ambientebeleuchtung aufweist.The object of the invention is to provide an interior light of the type mentioned, which has both the function of a reading light and the function of an ambient lighting with a simple structure.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass der Lichtleiter von dem Licht einer oder mehrerer zweiter Lichtquellen quer zur Ebene der Lichtaustrittsfläche zum Fahrzeuginnenraum hin durchleuchtbar ist.This object is achieved in that the light guide from the light of one or more second light sources transversely to the plane of the light exit surface to the vehicle interior is transilluminable.
Der Lichtleiter bildet dabei eine gemeinsame Abdeckung sowohl für die durch die zweiten Lichtquellen gebildete Leseleuchte als auch für die Ambientebeleuchtung durch die ersten Lichtquellen.The light guide forms a common cover both for the reading light formed by the second light sources and for the ambient lighting by the first light sources.
Die einzige Baueinheit für beide Beleuchtungsfunktionen spart nicht nur Bauraum, sondern auch Montageaufwand.The single unit for both lighting functions not only saves installation space, but also assembly work.
Die ersten Lichtquellen und die zweiten Lichtquellen können separat voneinander ansteuerbar sein, so dass entweder eine Lesebeleuchtung durch die Durchlichtbereiche oder eine Ambientebeleuchtung der Lichtaustrittsfläche ohne die Durchlichtbereiche erfolgt.The first light sources and the second light sources can be controlled separately from one another, so that either a reading illumination through the transmitted light areas or an ambient lighting of the light exit area occurs without the transmitted light areas.
Es ist aber auch möglich, dass die zweiten Lichtquellen zu den bereits eingeschalteten ersten Lichtquellen hinzugeschaltet werden, so dass in der bereits ambient leuchtenden Lichtaustrittsfläche ein oder mehrere Lichtspots zur Lesebeleuchtung hinzugeschaltet werden können.But it is also possible that the second light sources are connected to the already switched first light sources, so that one or more light spots can be added to the reading illumination in the already ambient illuminating light exit surface.
Die zweiten Lichtquellen erzeugen dabei insbesondere von der an der Decke des Fahrzeugs angeordneten Innenleuchte ausgehende und vorzugsweise nach unten gerichtete Lichtstrahlen.In this case, the second light sources generate, in particular, light beams which emanate from the interior light arranged on the ceiling of the vehicle and preferably downwardly.
Fahrzeuge können nicht nur Kraftfahrzeuge für den Straßenverkehr, sondern u. a. auch Flugzeuge, insbesondere Passagierflugzeuge, sein.Vehicles can not only motor vehicles for road traffic, but u. a. also be aircraft, especially passenger aircraft.
Ein besonders gleichmäßiges ambientes Licht wird an der Lichtaustrittsfläche erreicht, wenn der Lichtleiter an der Seite seiner Lichtaustrittsfläche mit Ausnahme eines oder mehrerer glasklarer Durchleuchtbereiche mit einer lichtstreuenden Struktur versehen ist, wobei die glasklaren Durchleuchtbereiche von den zweiten Lichtquellen durchleuchtbar sind.A particularly uniform ambient light is achieved at the light exit surface when the light guide is provided on the side of its light exit surface with the exception of one or more crystal clear transillumination areas with a light scattering structure, wherein the crystal clear transillumination areas are transilluminable by the second light sources.
Die lichtstreuende Struktur kann unmittelbar an der Lichtaustrittsfläche des Lichtleiters angeordnet oder ausgebildet sein.The light-diffusing structure can be arranged or formed directly on the light exit surface of the light guide.
Es ist aber zur einfacheren Herstellbarkeit auch möglich, dass auf der Lichtaustrittsfläche des glasklar ausgebildeten Lichtleiters eine durchleuchtbare Platte angeordnet ist, die die lichtstreuende Struktur sowie die glasklaren Durchleuchtbereiche aufweist.However, it is also possible for easier manufacturability that a transilluminable plate is arranged on the light exit surface of the crystal-clear light guide, which has the light-scattering structure and the crystal clear transillumination areas.
Dabei kann die durchleuchtbare Platte mittels eines einen gleichen Brechungsindex wie der Lichtleiter und die durchleuchtbare Platte aufweisenden Klebers auf den Lichtleiter aufgeklebt sein.In this case, the transilluminable plate can be glued onto the light guide by means of an adhesive having the same refractive index as the light guide and the transilluminable plate.
Die lichtstreuende Struktur kann auf verschiedene Art erzeugt werden. So kann die lichtstreuende Struktur durch eine Oberflächenrauhigkeit oder durch eine lichtstreuende Lackschicht oder durch eine lichtstreuende Folie oder durch in den Werkstoff des Lichtleiters oder der durchleuchtbaren Platte eingemischte lichtstreuende Partikel gebildet sein.The light-scattering structure can be produced in various ways. Thus, the light-diffusing structure can be formed by a surface roughness or by a light-scattering lacquer layer or by a light-scattering film or by light-scattering particles mixed into the material of the light guide or the transilluminable plate.
Um Lichtverluste zu vermeiden, ist der Lichtleiter vorzugsweise an seiner der Lichtaustrittsfläche abgewandten Oberfläche und/oder seinem umlaufenden Rand mit Ausnahme der Einkoppelbereiche der Lichtquellen von einer lichtundurchlässigen Abdeckung bedeckt.In order to avoid light losses, the light guide is preferably covered on its surface facing away from the light exit surface and / or its peripheral edge with the exception of the coupling regions of the light sources of an opaque cover.
Ist dabei die Abdeckung auf ihrer dem Lichtleiter zugewandten Seite lichtreflektierend ausgebildet, so entspricht die ambient ausgekoppelte Lichtmenge weitgehend verlustarm der durch die ersten Lichtquellen in den Lichtleiter eingekoppelten Lichtmenge.If the cover is designed to be light-reflecting on its side facing the optical waveguide, then the amount of light emitted in the ambient light corresponds largely to the loss of light coupled into the optical waveguide by the first light sources.
In einfacher Weise kann dabei die Abdeckung eine lichtreflektierende, insbesondere weiße, Beschichtung sein, die bspw. durch eine weiße Lackierung erzeugt werden kann.In a simple way, the cover can be a light-reflecting, in particular white, coating which, for example, can be produced by a white coating.
Zur gleichmäßigen Ausleuchtung der ganzen Lichtaustrittsfläche des Lichtleiters hinweg durch die ersten Lichtquellen kann in einfacher Weise der Lichtleiter ausgehend von dem oder den Einkoppelbereichen in Strahlrichtung der Lichtquellen keilartig zur Lichtauskoppelfläche hin geneigt sein.For uniform illumination of the entire light exit surface of the light guide through the first light sources, the light guide, starting from the one or the Einkoppelbereichen be inclined in the beam direction of the light sources to the light outcoupling surface.
Es ist dazu aber auch möglich, dass der Lichtleiter ausgehend von dem oder den Einkoppelbereichen in Strahlrichtung der Lichtquellen Krümmungen zur Lichtauskoppelfläche hin aufweist, wobei die Krümmung vorzugsweise nach einer quadratisch anwachsenden Funktion verläuft.However, it is also possible for the light guide to have curvatures towards the light outcoupling surface starting from the coupling region (s) in the beam direction of the light sources, wherein the curvature preferably proceeds according to a function which grows quadratically.
Damit werden Lichtverluste auf dem unterschiedlich langen Strahlungsweg durch den Lichtleiter ausgeglichen.This compensates for light losses on the radiation path of different lengths through the light guide.
Sind eine oder mehrere der Lichtquellen Leuchtdioden (LEDs), so wird eine geringe Baugröße der Innenleuchte erreicht.If one or more of the light sources are light-emitting diodes (LEDs), a small size of the interior light is achieved.
Weiterhin kommt es zu keinen Erwärmungen der Innenleuchte durch die Lichtquellen.Furthermore, there is no heating of the interior light by the light sources.
Um das ambiente Licht den jeweiligen Erfordernissen anzupassen, können die zweiten Lichtquellen weißes und/oder farbiges Licht emittieren.In order to adapt the ambient light to the respective requirements, the second light sources can emit white and / or colored light.
Dabei können ggf. auch umschaltbar verschiedene Farben des Lichts emittiert werden, um das abgestrahlte Licht zu tönen oder auf andere Weise zu gestalten.In this case, different colors of the light can optionally also be switched to be emitted in order to make the radiated light sound or to shape it in some other way.
Das Licht der ersten Lichtquellen kann beispielsweise rot sein, so dass die sich daraus ergebende ambiente Beleuchtung die Sicht des Fahrers nicht beeinträchtigt.For example, the light of the first light sources may be red so that the resulting ambient lighting does not affect the driver's vision.
Zu einer guten Lesebeleuchtung führt es, wenn die ersten Lichtquellen weißes Licht emittieren.It leads to a good reading lighting when the first light sources emit white light.
Ebenfalls zu einer gleichmäßigen Ausleuchtung über die gesamte Lichtauskoppelfläche hinweg führt es, wenn die ersten Lichtquellen das Licht über eine Linse in den Lichtleiter einkoppeln, die das Licht parallel zur Lichtaustrittsfläche ausrichtet.It also leads to a uniform illumination over the entire light output surface, when the first light sources couple the light via a lens in the light guide, which aligns the light parallel to the light exit surface.
Ausführungsbeispiele der Erfindung sind in der Zeichnung dargestellt und werden im Folgenden näher beschrieben. Es zeigen:Embodiments of the invention are illustrated in the drawings and will be described in more detail below. Show it:
Die dargestellten Innenleuchten weisen einen flächigen, annähernd rechteckförmigen Lichtleiter
Mit einer Lichtaustrittsfläche
Auf die Lichtaustrittsfläche
Die Platte
Die Lichtleiter
Von der Beschichtung freigelassen sind an der Oberfläche
An den ersten Einkoppelbereichen
An den zweiten Einkoppelbereichen
Die Oberfläche
In
Bei dem Ausführungsbeispiel der
Ausgehend von den beiden ersten Einkoppelbereichen
Das von den ersten und zweiten Leuchtdioden
Werden die dritten Leuchtdioden
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- DE 202004021617 U1 [0002] DE 202004021617 U1 [0002]
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010049408A DE102010049408A1 (en) | 2010-10-26 | 2010-10-26 | Interior light for use as ceiling light in inner space of motor car, has light conductors transilluminated by light of light sources transverse to plane of exit surface in vehicle inner space, where sources emit white and/or colored light |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010049408A DE102010049408A1 (en) | 2010-10-26 | 2010-10-26 | Interior light for use as ceiling light in inner space of motor car, has light conductors transilluminated by light of light sources transverse to plane of exit surface in vehicle inner space, where sources emit white and/or colored light |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102010049408A1 true DE102010049408A1 (en) | 2012-04-26 |
Family
ID=45923170
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102010049408A Ceased DE102010049408A1 (en) | 2010-10-26 | 2010-10-26 | Interior light for use as ceiling light in inner space of motor car, has light conductors transilluminated by light of light sources transverse to plane of exit surface in vehicle inner space, where sources emit white and/or colored light |
Country Status (1)
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DE (1) | DE102010049408A1 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104214630A (en) * | 2013-05-21 | 2014-12-17 | 黑拉许克联合股份有限公司 | Lighting device for vehicles and flat optical waveguide |
WO2015010798A1 (en) * | 2013-07-23 | 2015-01-29 | Volkswagen Aktiengesellschaft | Vehicle light for lighting the interior of a vehicle |
FR3010483A1 (en) * | 2013-09-09 | 2015-03-13 | Valeo Vision | VEHICLE CUSTOM LIGHTING DEVICE |
EP2915699A3 (en) * | 2014-03-07 | 2016-04-20 | IDD Aerospace Corporation | Aircraft cabin light systems |
DE102016200393A1 (en) | 2015-01-29 | 2016-08-04 | Lisa Dräxlmaier GmbH | Lighting device for vehicles, in particular for integration in vehicle doors |
WO2017137297A1 (en) * | 2016-02-08 | 2017-08-17 | Jaguar Land Rover Limited | Lighting device for vehicle cabin |
DE102021001463B3 (en) | 2021-03-19 | 2022-09-22 | Mercedes-Benz Group AG | Illuminated component and ambient lighting |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6164799A (en) * | 1997-09-19 | 2000-12-26 | Decoma International Inc. | Optics for separation of high and low intensity light |
DE20215988U1 (en) * | 2002-10-17 | 2002-12-12 | Fer Fahrzeugelektrik Gmbh | interior light |
DE10242170A1 (en) * | 2002-09-10 | 2004-03-25 | Abb Patent Gmbh | Optical guide has side sections, below which LED's are mounted and whose underside forms scattering lens, central section of guide having concave underside with stepped contour and light-reflecting coating |
DE10332158A1 (en) * | 2003-07-15 | 2005-02-03 | Daimlerchrysler Ag | Interior light for vehicle, has a light bulb for normal lighting function, with light shining through a light conductor which is formed as dispersing plate |
DE10341739A1 (en) * | 2003-09-08 | 2005-03-31 | Leopold Kostal Gmbh & Co Kg | Interior light for vehicle has second light source and lamp cover forming optical conductor with imperfections scattering light into passenger compartment interior |
DE202004021617U1 (en) | 1991-02-15 | 2009-07-23 | Hella Kgaa Hueck & Co. | Interior light for vehicles |
-
2010
- 2010-10-26 DE DE102010049408A patent/DE102010049408A1/en not_active Ceased
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202004021617U1 (en) | 1991-02-15 | 2009-07-23 | Hella Kgaa Hueck & Co. | Interior light for vehicles |
US6164799A (en) * | 1997-09-19 | 2000-12-26 | Decoma International Inc. | Optics for separation of high and low intensity light |
DE10242170A1 (en) * | 2002-09-10 | 2004-03-25 | Abb Patent Gmbh | Optical guide has side sections, below which LED's are mounted and whose underside forms scattering lens, central section of guide having concave underside with stepped contour and light-reflecting coating |
DE20215988U1 (en) * | 2002-10-17 | 2002-12-12 | Fer Fahrzeugelektrik Gmbh | interior light |
DE10332158A1 (en) * | 2003-07-15 | 2005-02-03 | Daimlerchrysler Ag | Interior light for vehicle, has a light bulb for normal lighting function, with light shining through a light conductor which is formed as dispersing plate |
DE10341739A1 (en) * | 2003-09-08 | 2005-03-31 | Leopold Kostal Gmbh & Co Kg | Interior light for vehicle has second light source and lamp cover forming optical conductor with imperfections scattering light into passenger compartment interior |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104214630A (en) * | 2013-05-21 | 2014-12-17 | 黑拉许克联合股份有限公司 | Lighting device for vehicles and flat optical waveguide |
WO2015010798A1 (en) * | 2013-07-23 | 2015-01-29 | Volkswagen Aktiengesellschaft | Vehicle light for lighting the interior of a vehicle |
CN105392672A (en) * | 2013-07-23 | 2016-03-09 | 大众汽车有限公司 | Vehicle light for lighting the interior of a vehicle |
CN105392672B (en) * | 2013-07-23 | 2018-01-16 | 大众汽车有限公司 | Vehicular illumination device for inner space illumination |
FR3010483A1 (en) * | 2013-09-09 | 2015-03-13 | Valeo Vision | VEHICLE CUSTOM LIGHTING DEVICE |
EP2915699A3 (en) * | 2014-03-07 | 2016-04-20 | IDD Aerospace Corporation | Aircraft cabin light systems |
DE102016200393A1 (en) | 2015-01-29 | 2016-08-04 | Lisa Dräxlmaier GmbH | Lighting device for vehicles, in particular for integration in vehicle doors |
DE102016200393B4 (en) | 2015-01-29 | 2023-06-29 | Lisa Dräxlmaier GmbH | Lighting device for vehicles, in particular for integration in vehicle doors |
WO2017137297A1 (en) * | 2016-02-08 | 2017-08-17 | Jaguar Land Rover Limited | Lighting device for vehicle cabin |
DE102021001463B3 (en) | 2021-03-19 | 2022-09-22 | Mercedes-Benz Group AG | Illuminated component and ambient lighting |
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