DE102014005044A1 - Light guide arrangement and lighting device - Google Patents
Light guide arrangement and lighting device Download PDFInfo
- Publication number
- DE102014005044A1 DE102014005044A1 DE102014005044.0A DE102014005044A DE102014005044A1 DE 102014005044 A1 DE102014005044 A1 DE 102014005044A1 DE 102014005044 A DE102014005044 A DE 102014005044A DE 102014005044 A1 DE102014005044 A1 DE 102014005044A1
- Authority
- DE
- Germany
- Prior art keywords
- light guide
- light
- optical element
- lighting device
- arrangement
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
- F21S43/235—Light guides
- F21S43/247—Light guides with a single light source being coupled into the light guide
-
- 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
- F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
- F21S41/24—Light guides
-
- 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
- F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
- F21S41/25—Projection lenses
- F21S41/26—Elongated lenses
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
- F21S43/235—Light guides
- F21S43/236—Light guides characterised by the shape of the light guide
- F21S43/239—Light guides characterised by the shape of the light guide plate-shaped
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
- F21S43/235—Light guides
- F21S43/242—Light guides characterised by the emission area
- F21S43/245—Light guides characterised by the emission area emitting light from one or more of its major surfaces
-
- 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
- G02B6/0005—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 of the fibre type
- G02B6/001—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 of the fibre type the light being emitted along at least a portion of the lateral surface of the fibre
-
- 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
- G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
Die Erfindung betrifft eine Lichtleiteranordnung (1) für eine Beleuchtungseinrichtung, insbesondere für ein Fahrzeug, umfassend zumindest eine Lichtquelle (2), zumindest einen Lichtleiter (3) und zumindest ein strahlformendes optisches Element (4), wobei die Lichtquelle (2), der Lichtleiter (3) und das optische Element (4) derart angeordnet und ausgebildet sind, dass mittels der Lichtquelle (2) in den Lichtleiter (3) eingekoppeltes Licht (L) an zumindest einer Auskoppelstelle (A1) des Lichtleiters (3) in zumindest eine Einkoppelstelle (E1) des optischen Elements (4) einkoppelbar ist. Erfindungsgemäß ist zwischen der Auskoppelstelle (A1) und der Einkoppelstelle (E1) ein Luftspalt (S) ausgebildet. Die Erfindung betrifft weiterhin eine Beleuchtungseinrichtung, insbesondere für ein Fahrzeug, umfassend zumindest eine solche Lichtleiteranordnung (1).The invention relates to a light guide arrangement (1) for a lighting device, in particular for a vehicle, comprising at least one light source (2), at least one light guide (3) and at least one beam-shaping optical element (4), the light source (2), the light guide (3) and the optical element (4) are arranged and designed such that light (L) coupled into the light guide (3) by means of the light source (2) at at least one decoupling point (A1) of the light guide (3) into at least one coupling point (E1) of the optical element (4) can be coupled. According to the invention, an air gap (S) is formed between the decoupling point (A1) and the coupling point (E1). The invention further relates to a lighting device, in particular for a vehicle, comprising at least one such light guide arrangement (1).
Description
Die Erfindung betrifft eine Lichtleiteranordnung für eine Beleuchtungseinrichtung, insbesondere für ein Fahrzeug, umfassend zumindest eine Lichtquelle, zumindest einen Lichtleiter und zumindest ein strahlformendes optisches Element, wobei die Lichtquelle, der Lichtleiter und das optische Element derart angeordnet und ausgebildet sind, dass mittels der Lichtquelle in den Lichtleiter eingekoppeltes Licht an zumindest einer Auskoppelstelle des Lichtleiters in zumindest eine Einkoppelstelle des optischen Elements einkoppelbar ist.The invention relates to a light guide arrangement for an illumination device, in particular for a vehicle, comprising at least one light source, at least one light guide and at least one beam-forming optical element, wherein the light source, the light guide and the optical element are arranged and configured such that by means of the light source in the light guide coupled light at at least one coupling-out point of the light guide in at least one coupling point of the optical element can be coupled.
Die Erfindung betrifft weiterhin eine Beleuchtungseinrichtung, insbesondere für ein Fahrzeug, umfassend zumindest eine solche Lichtleiteranordnung.The invention further relates to a lighting device, in particular for a vehicle, comprising at least one such light guide arrangement.
Aus der
Der Erfindung liegt die Aufgabe zu Grunde, eine gegenüber dem Stand der Technik verbesserte Lichtleiteranordnung für eine Beleuchtungseinrichtung, insbesondere für ein Fahrzeug, und eine verbesserte Beleuchtungseinrichtung anzugeben.The invention is based on the object to provide a comparison with the prior art improved light guide arrangement for a lighting device, in particular for a vehicle, and an improved lighting device.
Hinsichtlich der Lichtleiteranordnung wird die Aufgabe erfindungsgemäß durch die im Anspruch 1 angegebenen Merkmale und hinsichtlich der Beleuchtungseinrichtung durch die im Anspruch 5 angegebenen Merkmale gelöst.With regard to the light guide arrangement, the object is achieved by the features specified in claim 1 and with respect to the lighting device by the features specified in
Vorteilhafte Ausgestaltungen der Erfindung sind Gegenstand der Unteransprüche.Advantageous embodiments of the invention are the subject of the dependent claims.
Die Lichtleiteranordnung für eine Beleuchtungseinrichtung, insbesondere für ein Fahrzeug, umfasst zumindest eine Lichtquelle, zumindest einen Lichtleiter und zumindest ein strahlformendes optisches Element, wobei die Lichtquelle, der Lichtleiter und das optische Element derart angeordnet und ausgebildet sind, dass mittels der Lichtquelle in den Lichtleiter eingekoppeltes Licht an zumindest einer Auskoppelstelle des Lichtleiters in zumindest eine Einkoppelstelle des optischen Elements einkoppelbar ist.The optical waveguide arrangement for an illumination device, in particular for a vehicle, comprises at least one light source, at least one light guide and at least one beam-forming optical element, wherein the light source, the light guide and the optical element are arranged and configured such that by means of the light source coupled into the light guide Light can be coupled into at least one coupling point of the optical waveguide in at least one coupling point of the optical element.
Erfindungsgemäß ist zwischen der Auskoppelstelle und der Einkoppelstelle ein Luftspalt ausgebildet.According to the invention, an air gap is formed between the coupling-out point and the coupling-in point.
Aus der erfindungsgemäßen Anordnung des Lichtleiters und des optischen Elements in der Art, dass zwischen der Auskoppelstelle und der Einkoppelstelle ein Luftspalt ausgebildet ist, resultiert in besonders vorteilhafter Weise bei einer Anwendung in einer Beleuchtungseinrichtung eines Fahrzeugs, dass der Lichtleiter an eine Karosserieform angepasst werden kann und gleichzeitig eine maximale Nutzung des mittels der Lichtquelle erzeugten Lichts sowie daraus folgend eine große lichttechnische Effizienz realisiert werden können. Somit ist es möglich, eine Beleuchtungseinrichtung für eine Grundlichtverteilung für Fahrzeuge mit einer Lichtleiteranordnung zu realisieren, welche auch bei an die Karosserie angepasster Form eine hohe Effizienz aufweist. Dabei werden Änderungen einer erzeugten Lichtverteilung im Fernfeld und lichttechnische Verluste minimiert.From the inventive arrangement of the light guide and the optical element in such a way that between the coupling point and the coupling point is formed an air gap, resulting in a particularly advantageous manner in an application in a lighting device of a vehicle that the light guide can be adapted to a body shape and at the same time a maximum use of the light generated by the light source and, consequently, a large lighting efficiency can be realized. Thus, it is possible to realize a lighting device for a basic light distribution for vehicles with a light guide arrangement, which has a high efficiency even when adapted to the body shape. In this case, changes in a generated light distribution in the far field and photometric losses are minimized.
Ausführungsbeispiele der Erfindung werden im Folgenden anhand von Zeichnungen näher erläutert.Embodiments of the invention are explained in more detail below with reference to drawings.
Dabei zeigen:Showing:
Einander entsprechende Teile sind in allen Figuren mit den gleichen Bezugszeichen versehen.Corresponding parts are provided in all figures with the same reference numerals.
In
Die Lichtquelle
Zur Ablenkung des Lichts L innerhalb des Lichtleiters
Mittels des strahlformenden optischen Elements
In den
Bei der Darstellung der Lichtverteilung LV sind Bereiche der Lichtverteilung LV mit hoher Helligkeit mit einer dichten Schraffur dargestellt, wobei mit abnehmender Helligkeit auch die Dichte der Schraffur abnimmt. Hierbei wird ersichtlich, dass die Lichtverteilung LV aufgrund der Verluste V lediglich in kleinen Bereichen eine große Helligkeit aufweist und die Helligkeit sehr inhomogen ist.In the representation of the light distribution LV, regions of the light distribution LV with high brightness are shown with a dense hatching, with the density of the hatching also decreasing as the brightness decreases. It can be seen here that the light distribution LV has a high brightness only in small areas due to the losses V and that the brightness is very inhomogeneous.
Die
Bei der Darstellung der Lichtverteilung LV sind Bereiche der Lichtverteilung LV mit hoher Helligkeit mit einer dichten Schraffur dargestellt, wobei mit abnehmender Helligkeit auch die Dichte der Schraffur abnimmt. Hierbei wird ersichtlich, dass die Lichtverteilung LV aufgrund der Verluste V lediglich in kleinen Bereichen eine große Helligkeit aufweist und die Helligkeit sehr inhomogen ist. Auch die Lichtverteilung LV ist somit schräg angeordnet.In the representation of the light distribution LV, regions of the light distribution LV with high brightness are shown with a dense hatching, with the density of the hatching also decreasing as the brightness decreases. It can be seen here that the light distribution LV has a high brightness only in small areas due to the losses V and that the brightness is very inhomogeneous. The light distribution LV is thus also arranged obliquely.
Daraus wird ersichtlich, dass eine solche nach dem Stand der Technik bekannte Lichtleiteranordnung
Bei einer nicht-parallelen Einkopplung des Lichts L in den Lichtleiter
Im dargestellten Ausführungsbeispiel ist ein Strahlengang des Lichts L innerhalb des Lichtleiters
In den
In den
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 11
- LichtleiteranordnungOptical fiber arrangement
- 22
- Lichtquellelight source
- 33
- Lichtleiteroptical fiber
- 44
- optisches Elementoptical element
- 55
- Auskoppelstrukturoutcoupling
- A1A1
- Auskoppelstelledecoupling point
- dd
- Dickethickness
- E1E1
- Einkoppelstellecoupling point
- LL
- Lichtlight
- IV I V
- Lichtstärkeluminous intensity
- LVLV
- Lichtverteilunglight distribution
- SS
- Luftspaltair gap
- TT
- Teilpart
- VV
- Verlustloss
- α, βα, β
- Winkelangle
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 202012000567 U1 [0003] DE 202012000567 U1 [0003]
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014005044.0A DE102014005044A1 (en) | 2014-04-04 | 2014-04-04 | Light guide arrangement and lighting device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014005044.0A DE102014005044A1 (en) | 2014-04-04 | 2014-04-04 | Light guide arrangement and lighting device |
Publications (1)
Publication Number | Publication Date |
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DE102014005044A1 true DE102014005044A1 (en) | 2014-09-18 |
Family
ID=51418978
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102014005044.0A Withdrawn DE102014005044A1 (en) | 2014-04-04 | 2014-04-04 | Light guide arrangement and lighting device |
Country Status (1)
Country | Link |
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DE (1) | DE102014005044A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2963334A3 (en) * | 2014-06-26 | 2016-05-25 | Automotive Lighting Reutlingen GmbH | Light conductor assembly for use in a lighting device of a motor vehicle and motor vehicle lighting device with such a light conductor assembly |
EP3062014A1 (en) * | 2015-02-24 | 2016-08-31 | Stanley Electric Co., Ltd. | Illumination device |
DE102015204735B4 (en) | 2015-03-16 | 2024-02-22 | Automotive Lighting Reutlingen Gmbh | Light guide element of a motor vehicle lighting device and motor vehicle lighting device with such a light guide element |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202012000567U1 (en) | 2012-01-20 | 2012-03-01 | Automotive Lighting Reutlingen Gmbh | Lighting device for a motor vehicle |
-
2014
- 2014-04-04 DE DE102014005044.0A patent/DE102014005044A1/en not_active Withdrawn
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202012000567U1 (en) | 2012-01-20 | 2012-03-01 | Automotive Lighting Reutlingen Gmbh | Lighting device for a motor vehicle |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2963334A3 (en) * | 2014-06-26 | 2016-05-25 | Automotive Lighting Reutlingen GmbH | Light conductor assembly for use in a lighting device of a motor vehicle and motor vehicle lighting device with such a light conductor assembly |
EP3062014A1 (en) * | 2015-02-24 | 2016-08-31 | Stanley Electric Co., Ltd. | Illumination device |
US10234615B2 (en) | 2015-02-24 | 2019-03-19 | Stanley Electric Co., Ltd. | Illumination device |
DE102015204735B4 (en) | 2015-03-16 | 2024-02-22 | Automotive Lighting Reutlingen Gmbh | Light guide element of a motor vehicle lighting device and motor vehicle lighting device with such a light guide element |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R230 | Request for early publication | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |