DE102006038759A1 - Bar-shaped light conductor for lighting device of vehicle, has light outlet surface, which is proceeding in direction of longitudinal axis, and light coupling area, which is formed such that coupled light beam converges in focal line - Google Patents
Bar-shaped light conductor for lighting device of vehicle, has light outlet surface, which is proceeding in direction of longitudinal axis, and light coupling area, which is formed such that coupled light beam converges in focal line Download PDFInfo
- Publication number
- DE102006038759A1 DE102006038759A1 DE102006038759A DE102006038759A DE102006038759A1 DE 102006038759 A1 DE102006038759 A1 DE 102006038759A1 DE 102006038759 A DE102006038759 A DE 102006038759A DE 102006038759 A DE102006038759 A DE 102006038759A DE 102006038759 A1 DE102006038759 A1 DE 102006038759A1
- Authority
- DE
- Germany
- Prior art keywords
- light
- light guide
- lichteinkoppelbereiches
- longitudinal axis
- focal line
- 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.)
- Withdrawn
Links
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
- G02B6/0005—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
- G02B6/0006—Coupling light into the fibre
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
- F21S43/235—Light guides
- F21S43/236—Light guides characterised by the shape of the light guide
- F21S43/237—Light guides characterised by the shape of the light guide rod-shaped
-
- 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
-
- 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
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/002—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/0038—Linear indentations or grooves, e.g. arc-shaped grooves or meandering grooves, extending over the full length or width of the light guide
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
- F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
- F21S43/14—Light emitting diodes [LED]
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Light Guides In General And Applications Therefor (AREA)
- Planar Illumination Modules (AREA)
Abstract
Description
Die Erfindung betrifft einen stabförmigen Lichtleiter für eine Beleuchtungseinrichtung eines Kraftfahrzeugs mit einer in Richtung einer Längsachse verlaufenden Lichtaustrittsfläche, mit einer der Lichtaustrittsfläche gegenüberliegend angeordneten reflektierende Mittel aufweisenden Reflexionsfläche und mit einem an mindestens einem Ende zu einer Lichteinkoppelfläche ausgebildeten Stirnfläche hin sich verjüngenden Lichteinkoppelbereich, der als ein ellipsoidförmiger Bereich ausgebildet ist.The The invention relates to a rod-shaped light guide for one Lighting device of a motor vehicle with an in direction a longitudinal axis extending light exit surface, with one of the light exit surface opposite arranged reflective means having reflective surface and with a trained at at least one end to a light input surface face rejuvenating Lichteinkoppelbereich formed as an ellipsoidal area is.
Aus
der
Aufgabe der vorliegenden Erfindung ist es daher, einen stabförmigen Lichtleiter für eine Beleuchtungseinrichtung eines Kraftfahrzeuges derart weiterzubilden, dass bei insbesondere langen Lichtleitern eine homogene Ausleuchtung des gesamten stabförmigen Lichtleiters gewährleistet ist.task Therefore, it is the object of the present invention to provide a rod-shaped light guide for one To improve the illumination device of a motor vehicle in such a way that in particular long light guides a homogeneous illumination of the entire rod-shaped Optical fiber guaranteed is.
Zur Lösung dieser Aufgabe ist die Erfindung in Verbindung mit dem Oberbegriff des Patentanspruchs 1 dadurch gekennzeichnet, dass der Lichteinkoppelbereich derart ausgebildet ist, dass die eingekoppelten Lichtstrahlen in einer Brennlinie zusammenlaufen.to solution This object is the invention in conjunction with the preamble of the patent claim 1, characterized in that the Lichteinkoppelbereich is formed such that the coupled light beams in converge on a focal line.
Der besondere Vorteil der Erfindung besteht darin, dass durch die Ausbildung einer Brennlinie innerhalb des stabförmigen Lichtleiters einen solchen Weg innerhalb des Lichtleiters nehmen, dass eine homogenere Auftreffverteilung der eingekoppelten Lichtstrahlen auf die Reflexionsfläche des Lichtleiters erfolgt. Hierdurch kann eine homogene Ausleuchtung über die gesamte Länge des stabförmigen Lichtleiters erzielt werden, wobei insbesondere relativ hohe Leuchtdichten im Einkopplungsbereich des Lichtleiters vermieden werden.Of the particular advantage of the invention is that through the training a focal line within the rod-shaped light guide such a way within the light guide take that a more homogeneous impact distribution the coupled light rays on the reflection surface of the Optical fiber takes place. This allows a homogeneous illumination over the whole length of the rod-shaped Be achieved light guide, in particular relatively high luminance be avoided in the coupling region of the light guide.
Nach einer bevorzugten Ausführungsform der Erfindung ist die Brennlinie als ein Brennring ausgebildet, der sich vorzugsweise senkrecht zur Längsachse des Lichtleiters erstreckt. Der Lichteinkoppelbereich ist hierbei rotationssymmetrisch zu der Längsachse des Lichtleiters ausgebildet. Der Brennring wird gebildet durch eine Mehrzahl von in einem Kreis angeordneten Brennpunkten.To a preferred embodiment of Invention, the focal line is formed as a fuel ring, the preferably extends perpendicular to the longitudinal axis of the light guide. The Lichteinkoppelbereich is in this case rotationally symmetrical to the longitudinal axis formed of the light guide. The focal ring is formed by a plurality of foci arranged in a circle.
Nach einer bevorzugten Ausführungsform der Erfindung ist die Formgebung des Lichteinkoppelbereiches und damit die Bildung der Brennlinie abhängig von der Länge des Lichtleiters. Vorteilhaft kann hierdurch eine Anpassung des Lichteinkoppelbereiches an die Länge des Lichtleiters erfolgen, so dass stets eine homogene Ausleuchtung des gesamten stabförmigen Lichtleiters gegeben ist.To a preferred embodiment of Invention is the shape of the Lichteinkoppelbereiches and thus the formation of the focal line depends of the length of the light guide. This can advantageously be an adaptation of the Lichteinkoppelbereiches to the length of the light guide, so that always a homogeneous illumination of the entire rod-shaped Light guide is given.
Vorteilhaft ermöglicht die Erfindung eine lichtkonzentrierende Wirkung des Lichteinkoppelbereiches auf einen Zentralbereich der Lichtstärkeverteilung des stabförmigen Lichtleiters.Advantageous allows the invention a light-concentrating effect of Lichteinkoppelbereiches on a central region of the light intensity distribution of the rod-shaped light guide.
Nach einer Weiterbildung der Erfindung ist eine Mantelfläche des Lichteinkoppelbereiches derart ausgebildet, dass die eingekoppelten Lichtstrahlen an der Mantelfläche unter einem von der vorgegebenen Länge des Lichtleiters abhängigen Streuungsgrades totalreflektiert werden. Vorteilhaft kann hierdurch eine Anpassung an unterschiedliche Länge des stabförmigen Lichtleiters vorgenommen werden. Je größer die Streuung ist, desto kürzer sind die Wege der Lichtstrahlen im Lichtleiter und desto eher treffen sie auf die Reflexionsfläche des Lichtleiters, so dass sie aus dem Lichtleiter ausgekoppelt werden können.To a development of the invention is a lateral surface of the Lichteinkoppelbereiches formed such that the coupled Light rays on the lateral surface under a dependent on the predetermined length of the light guide degree of scattering be totally reflected. This can advantageously be an adaptation to different length of the rod-shaped Fiber optics are made. The larger the scatter, the more shorter are the paths of the light rays in the light guide and the more likely to strike on the reflection surface of the light guide, so that they can be coupled out of the light guide.
Ein Ausführungsbeispiel der Erfindung wird nachfolgend anhand der Zeichnungen näher erläutert.One embodiment The invention will be explained in more detail with reference to the drawings.
Es zeigen:It demonstrate:
Ein
stabförmiger
Lichtleiter
Das
von der Lichtquelle
Der
stabförmige
Lichtleiter
Der
Lichteinkoppelbereich
Der
Lichteinkoppelbereich
Wie
aus den
Im
Unterschied zu einem herkömmlich
ausgebildeten Lichteinkoppelbereich
Die
Mantelfläche
Die
gebildete Brennlinie bzw. der Brennring
Alternativ
oder zusätzlich
kann auch der Streuwinkel S in Abhängigkeit von der Länge L des Lichtleitkörpers
Nach
einer Ausführungsform
der Erfindung hat die Mantelfläche
Nach
einer weiteren Ausführungsform
der Erfindung kann die Mantelfläche
des Lichteinkoppelbereiches
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006038759A DE102006038759A1 (en) | 2006-08-17 | 2006-08-17 | Bar-shaped light conductor for lighting device of vehicle, has light outlet surface, which is proceeding in direction of longitudinal axis, and light coupling area, which is formed such that coupled light beam converges in focal line |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006038759A DE102006038759A1 (en) | 2006-08-17 | 2006-08-17 | Bar-shaped light conductor for lighting device of vehicle, has light outlet surface, which is proceeding in direction of longitudinal axis, and light coupling area, which is formed such that coupled light beam converges in focal line |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102006038759A1 true DE102006038759A1 (en) | 2008-02-21 |
Family
ID=38954891
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102006038759A Withdrawn DE102006038759A1 (en) | 2006-08-17 | 2006-08-17 | Bar-shaped light conductor for lighting device of vehicle, has light outlet surface, which is proceeding in direction of longitudinal axis, and light coupling area, which is formed such that coupled light beam converges in focal line |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102006038759A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012108855A1 (en) | 2012-09-20 | 2014-03-20 | Hella Kgaa Hueck & Co. | Optical fiber for vehicles |
CN104061528A (en) * | 2014-06-03 | 2014-09-24 | 中山市盛泰达塑胶制品有限公司 | Lighting fitting |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4129094A1 (en) * | 1991-09-02 | 1993-03-04 | Hella Kg Hueck & Co | Signal lamp with extended light guides for motor vehicle - emits light from grouped multi-prismatic surfaces of parallel light guides into which light is coupled from LEDs |
DE19924411A1 (en) * | 1999-05-27 | 2000-11-30 | Hella Kg Hueck & Co | Rod-shaped light guide |
US20040264188A1 (en) * | 2001-09-11 | 2004-12-30 | Hare Tazawa | Condensing element and forming method threfor and condensing element-carrying led lamp and linear light emitting device using led lamp as light source |
-
2006
- 2006-08-17 DE DE102006038759A patent/DE102006038759A1/en not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4129094A1 (en) * | 1991-09-02 | 1993-03-04 | Hella Kg Hueck & Co | Signal lamp with extended light guides for motor vehicle - emits light from grouped multi-prismatic surfaces of parallel light guides into which light is coupled from LEDs |
DE19924411A1 (en) * | 1999-05-27 | 2000-11-30 | Hella Kg Hueck & Co | Rod-shaped light guide |
US20040264188A1 (en) * | 2001-09-11 | 2004-12-30 | Hare Tazawa | Condensing element and forming method threfor and condensing element-carrying led lamp and linear light emitting device using led lamp as light source |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012108855A1 (en) | 2012-09-20 | 2014-03-20 | Hella Kgaa Hueck & Co. | Optical fiber for vehicles |
CN103672743A (en) * | 2012-09-20 | 2014-03-26 | 黑拉许克联合股份有限公司 | Light guides for vehicles |
CN103672743B (en) * | 2012-09-20 | 2018-05-11 | 黑拉许克联合股份有限公司 | Light guides for vehicles |
CN104061528A (en) * | 2014-06-03 | 2014-09-24 | 中山市盛泰达塑胶制品有限公司 | Lighting fitting |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
R005 | Application deemed withdrawn due to failure to request examination |
Effective date: 20130820 |