DE102004036850A1 - Lamp for vehicles comprises a light coupling surface and/or a reflection surface extending in a rear region with respect to a focal point surface of the lamp - Google Patents
Lamp for vehicles comprises a light coupling surface and/or a reflection surface extending in a rear region with respect to a focal point surface of the lamp Download PDFInfo
- Publication number
- DE102004036850A1 DE102004036850A1 DE102004036850A DE102004036850A DE102004036850A1 DE 102004036850 A1 DE102004036850 A1 DE 102004036850A1 DE 102004036850 A DE102004036850 A DE 102004036850A DE 102004036850 A DE102004036850 A DE 102004036850A DE 102004036850 A1 DE102004036850 A1 DE 102004036850A1
- Authority
- DE
- Germany
- Prior art keywords
- light
- light guide
- reflection surface
- bulb
- lamp
- 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- Withdrawn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
- 230000008878 coupling Effects 0.000 title abstract description 4
- 238000010168 coupling process Methods 0.000 title abstract description 4
- 238000005859 coupling reaction Methods 0.000 title abstract description 4
- 230000036961 partial effect Effects 0.000 claims description 17
- 230000003287 optical effect Effects 0.000 claims description 16
- 230000009977 dual effect Effects 0.000 claims description 2
- 238000009826 distribution Methods 0.000 description 13
- 239000000463 material Substances 0.000 description 4
- CNQCVBJFEGMYDW-UHFFFAOYSA-N lawrencium atom Chemical compound [Lr] CNQCVBJFEGMYDW-UHFFFAOYSA-N 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000003550 marker Substances 0.000 description 2
- 239000013078 crystal Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
Classifications
-
- 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
- F21V7/0091—Reflectors for light sources using total internal reflection
-
- 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
- F21S43/241—Light guides characterised by the shape of the light guide of complex shape
-
- 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
- F21S43/243—Light guides characterised by the emission area emitting light from one or more of its extremities
-
- 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
- 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
- F21S43/31—Optical layout thereof
- F21S43/315—Optical layout thereof using total internal reflection
-
- 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
- F21S43/40—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the combination of reflectors and refractors
-
- 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
- F21V5/00—Refractors for light sources
- F21V5/008—Combination of two or more successive refractors along an optical axis
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Planar Illumination Modules (AREA)
Abstract
Description
Die Erfindung betrifft eine Leuchte für Fahrzeuge mit einer als Glühlampe ausgebildeten Lichtquelle, einem der Glühlampe zugeordneten Lichtleiter mit Konturflächen, die auf einer der Glühlampe zugewandten Seite als eine Lichteinkoppelfläche und auf einer der Glühlampe abgewandten Seite als eine Lichtauskoppelfläche ausgebildet sind, wobei mindestens eine Konturfläche des Lichtleiters als eine Reflexionsfläche ausgebildet ist, an der das eingekoppelte Licht totalreflektiert wird in Richtung einer weiteren Reflexionsfläche oder in Lichtaustrittsrichtung.The The invention relates to a lamp for vehicles with a trained as a light bulb Light source, one of the light bulb associated light guide with contoured surfaces, which faces on one of the bulb Side as a light input surface and on one of the lightbulbs opposite side are formed as a light outcoupling surface, wherein at least one contour surface the light guide is formed as a reflection surface on the the injected light is totally reflected in the direction of another reflecting surface or in the direction of light exit.
Aus
der
Aus
der
Aufgabe der vorliegenden Erfindung ist es, eine Leuchte für Fahrzeuge derart weiterzubilden, dass das von einer Glühlampe ausgesandte Licht effektiver zur Bildung einer Lichtverteilung genutzt wird und der herstellungstechnische Aufwand hierfür relativ niedrig gestaltet werden kann.task The present invention is a lamp for vehicles in such a way that the light emitted by a light bulb is more effective is used to form a light distribution and the manufacturing technology Effort for this can be made relatively low.
Zur Lösung dieser Aufgabe ist die Erfindung in Verbindung mit dem Oberbegriff des Patentanspruchs 1 dadurch gekennzeichnet, dass die Lichtauskoppelfläche und/oder die Reflexionsfläche sich in Lichtaustrittsrichtung zumindest auch in einem hinteren Bereich bezogen auf eine Brennpunktebene der Glühlampe erstreckt.to solution This object is the invention in conjunction with the preamble of the patent claim 1, characterized in that the light output surface and / or the reflection surface itself in the light exit direction, at least in a rear area extends with respect to a focal plane of the bulb.
Nach einem Aspekt der Erfindung erstreckt sich ein Abschnitt des Lichtleiters in einem in Lichtaustrittsrichtung hinteren Bereich bezogen auf eine Brennpunktebene der Glühlampe. Die Brennpunktebene ist dabei definiert als eine vertikale Ebene, in der eine Glühwendel der Glühlampe positioniert ist, wobei diese maßgeblich ist für die Ausrichtung von optischen Flächen eines Licht führenden bzw. Licht leitenden Systems (Lichtleiter). Erfindungsgemäß kann somit ein nach hinten abstrahlendes Teillichtbündel der Glühlampe in den Lichtleiter eingekoppelt, geführt und vorzugsweise in Lichtaustrittsrichtung totalreflektiert werden. Vorteilhaft kann hierdurch der Wirkungsgrad der Leuchte wesentlich vergrößert werden.To In one aspect of the invention, a portion of the light guide extends in a rear area in the light exit direction with respect to a Focal plane of the light bulb. The focal plane is defined as a vertical plane, in the one filament the light bulb is positioned, which is decisive for the orientation of optical surfaces a light-guiding or Light conducting system (light guide). Thus, according to the invention a back-radiating partial light bundle of the incandescent lamp coupled into the light guide, guided and preferably totally reflected in the light exit direction. Advantageously, as a result, the efficiency of the lamp can be significantly increased.
Nach einer Weiterbildung der Erfindung erstreckt sich eine das eingekoppelte Licht totalreflektierende Reflexionsfläche des Lichtleiter kontinuierlich in einem hinteren und vorderen Bereich bezogen auf die Brennpunktebene. Hierdurch kann Platz sparend eine gewünschte Lichtverteilung der Leuchte generiert werden.To a development of the invention extends the coupled Light totally reflecting reflection surface of the light guide continuously in a rear and front area with respect to the focal plane. This can save space a desired light distribution of Luminaire be generated.
Nach einer Weiterbildung der Erfindung ist eine Konturfläche des Lichtleiters als eine Doppelfunktionsfläche ausgebildet, an der zum einen ein erstes Teil lichtbündel totalreflektiert wird und zum anderen ein zweites Teillichtbündel aus dem Lichtleiter austritt. In Verbindung mit der Ausgestaltung anderer Konturflächen des Lichtleiters kann somit Platz sparend eine vorgegebene Lichtverteilung erzeugt werden.To a development of the invention is a contour surface of Optical fiber designed as a double-function surface, at the a first part of the light beam is totally reflected and on the other a second partial light bundle exits the light guide. In conjunction with the design of other contour surfaces of the Light guide can thus save space a predetermined light distribution be generated.
Nach einer Weiterbildung der Erfindung kann einer Reflexionsfläche, an der das Licht totalreflektiert wird, eine Designblende vorgelagert sein, so dass der ansonsten nicht nutzbare Abschnitt der Lichtauskoppelfläche zu Designzwecken verwendet werden kann. Beispielsweise kann die Designblende als Rückstrahler ausgebildet sein, so dass sie zusätzlich eine optische Funktion aufweist.To a development of the invention, a reflection surface, on the light is totally reflected, a design panel upstream so that the otherwise unusable portion of the light output surface for design purposes can be used. For example, the design panel can be called reflector be formed so that they additionally have an optical function having.
Zur Lösung der Aufgabe ist die Erfindung in Verbindung mit dem Oberbegriff des Patentanspruchs 1 dadurch gekennzeichnet, dass der Lichtleiter mindestens zwei Lichtleitelemente aufweist, die in Lichtaustrittsrichtung hintereinander angeordnet sind, und die jeweils eine unterschiedliche optische Fläche aufweisen.to solution the object is the invention in conjunction with the preamble of the patent claim 1, characterized in that the light guide Has at least two light-guiding elements, in the light exit direction are arranged one behind the other, and each one different optical surface exhibit.
Nach einem zweiten Aspekt der Erfindung ist ein Lichtleiter mehrteilig in Lichtleitelemente ausgebildet, die über jeweils optische Flächen mit unterschiedlichen Funktionen aufweisen. Hierdurch wird ein Baukastensystem geschaffen, indem unterschiedliche Lichtleitelemente mit unterschiedlichen optischen Wirkungen zur Erzielung vorgegebener Lichtverteilungen kombiniert werden können. Zur Konfektionierung von Leuchten kann der Lichtleiter zum einen aus mindestens einem Basislichtleitelement bestehen, das in jeder Leuchte Einsatz findet. Zum anderen kann der Lichtleiter aus Aufbaulichtleitelementen bestehen, die in Abhängigkeit von der zu generierenden Lichtverteilung wahlweise mit dem Basislichtleitelement kombiniert werden. Jedes Lichtleitelement verfügt über mehrere optische Flächen, beispielsweise eine Vorder- und eine Rücksei te, die optisch wirksam ausgenutzt werden können. Hierdurch ergibt sich eine Platz sparende Lichtverteilung bzw. -führung.According to a second aspect of the invention, a light guide is formed in several parts in light-guiding elements, which each have optical surfaces with different functions. As a result, a modular system is created by different light guide elements with different optical effects to achieve predetermined Light distributions can be combined. For confectioning lights, the light guide may consist of at least one base light guide element, which is used in each luminaire. On the other hand, the light guide can consist of structural light guide elements, which are optionally combined with the base light guide element as a function of the light distribution to be generated. Each light guide has a plurality of optical surfaces, such as a front and a Rücksei te, which can be exploited optically effective. This results in a space-saving light distribution or leadership.
Nach einer bevorzugten Ausführungsform der Leuchte können die Lichtleitelemente relativ flach ausgebildet sein, so dass sich die Wandstärken der Lichtleitelemente minimieren lassen. Vorteilhaft kann hierdurch die Fertigung der Leuchte vereinfacht werden. Die Lichtleitelemente weisen dabei jeweils optische Teilwirkungen auf, die durch Zusammenwirken die vorgegebene Lichtverteilung erzeugen.To a preferred embodiment of Light can the light guide elements are designed to be relatively flat, so that the wall thicknesses minimize the light guide elements. This can advantageously the manufacture of the luminaire can be simplified. The light guide elements each have optical partial effects, which interact through the generate predetermined light distribution.
Nach einer Weiterbildung der Erfindung werden die Lichtleitelemente über randseitige Haltemittel zusammengehalten. Vorteilhaft kann hierdurch der Lichtleiter größere Kräfte aufnehmen, wobei die zentrale Lichtführung bzw. -verteilung nicht gestört wird.To In a further development of the invention, the light-guiding elements are on the edge side Holding means held together. Advantageously, this can be the light guide take in larger forces, the central light guide or distribution not disturbed becomes.
Weitere Vorteile der Erfindung ergeben sich aus den weiteren Unteransprüchen.Further Advantages of the invention will become apparent from the other dependent claims.
Ausführungsbeispiele der Erfindung werden nachfolgend anhand der Zeichnungen näher erläutert.embodiments The invention will be explained in more detail with reference to the drawings.
Es zeigen:It demonstrate:
Eine
erfindungsgemäße Leuchte
Die
Leuchte
Nach
einer ersten Ausführungsform
der Leuchte
Zusätzlich kann
der Wärmefilter
Der
Lichtleiter
Wie
aus
Eine
seitliche Reflexionsfläche
Während die
Form des zweiten Lichtleitelementes
Nach
einer zweiten Ausführungsform
der Leuchte
Die
Reflexionsfläche
In
Nach
einer dritten Ausführungsform
der Leuchte
Im
Unterschied zu den vorhergehenden Ausführungsbeispielen kann das zweite
Lichtleitelement
Nach
einer vierten Ausführungsform
der Leuchte
Nach
einer weiteren Ausführungsform
der Erfindung gemäß
Nach
einem weiteren Ausführungsbeispiel der
Leuchte
Wie
weiterhin zu sehen ist, weisen das zweite Lichtleitelement
Im
Montagezustand sind die Lichtleitelemente
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102004036850A DE102004036850A1 (en) | 2004-07-29 | 2004-07-29 | Lamp for vehicles comprises a light coupling surface and/or a reflection surface extending in a rear region with respect to a focal point surface of the lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102004036850A DE102004036850A1 (en) | 2004-07-29 | 2004-07-29 | Lamp for vehicles comprises a light coupling surface and/or a reflection surface extending in a rear region with respect to a focal point surface of the lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE102004036850A1 true DE102004036850A1 (en) | 2006-03-23 |
Family
ID=36001409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE102004036850A Withdrawn DE102004036850A1 (en) | 2004-07-29 | 2004-07-29 | Lamp for vehicles comprises a light coupling surface and/or a reflection surface extending in a rear region with respect to a focal point surface of the lamp |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE102004036850A1 (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008035765A1 (en) | 2008-07-31 | 2010-02-04 | Automotive Lighting Reutlingen Gmbh | lighting device |
| DE102009023916A1 (en) | 2009-06-04 | 2010-12-09 | Hella Kgaa Hueck & Co. | Light for vehicle, has external section formed such that light bundle is radiated for production of signal light functions acting sideways under total reflection at surfaces, where another bundle is radiated from lens section |
| EP2211087A3 (en) * | 2009-01-27 | 2012-05-09 | Koito Manufacturing Co., Ltd. | Vehicle lamp |
| DE102010056313A1 (en) | 2010-12-27 | 2012-06-28 | Automotive Lighting Reutlingen Gmbh | Lighting device for motor vehicle for generating two different light distributions, has two light sources for emitting light and header optics for bundling light emitted from light sources |
| DE102011051541A1 (en) * | 2011-07-04 | 2013-01-10 | Hella Kgaa Hueck & Co. | Illumination device for in e.g. rear region, of motor car, has wall section closed with respect to side turned away to illuminant side and coaxial to axis in circumference direction, where axis extends to optical axis of light source unit |
| DE102011052485A1 (en) | 2011-08-08 | 2013-02-14 | Hella Kgaa Hueck & Co. | Lamp for vehicle, has one functional area and another functional area, which are formed in housing, and are separated from each other by partially opaque wall which is impermeable for light beam |
| CN104456355A (en) * | 2014-11-15 | 2015-03-25 | 重庆长安汽车股份有限公司 | Automobile LED lamp lens |
| DE102014212918A1 (en) * | 2014-07-03 | 2016-01-21 | Volkswagen Aktiengesellschaft | Motor vehicle lighting device |
| WO2017083450A1 (en) * | 2015-11-12 | 2017-05-18 | Ge Lighting Solution, Llc | Methods and apparatus for use in association with lighting systems |
| CN111197727A (en) * | 2018-11-19 | 2020-05-26 | Zkw集团有限责任公司 | Lighting device for a motor vehicle headlight and motor vehicle headlight |
-
2004
- 2004-07-29 DE DE102004036850A patent/DE102004036850A1/en not_active Withdrawn
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008035765A1 (en) | 2008-07-31 | 2010-02-04 | Automotive Lighting Reutlingen Gmbh | lighting device |
| EP2211087A3 (en) * | 2009-01-27 | 2012-05-09 | Koito Manufacturing Co., Ltd. | Vehicle lamp |
| DE102009023916A1 (en) | 2009-06-04 | 2010-12-09 | Hella Kgaa Hueck & Co. | Light for vehicle, has external section formed such that light bundle is radiated for production of signal light functions acting sideways under total reflection at surfaces, where another bundle is radiated from lens section |
| DE102010056313A1 (en) | 2010-12-27 | 2012-06-28 | Automotive Lighting Reutlingen Gmbh | Lighting device for motor vehicle for generating two different light distributions, has two light sources for emitting light and header optics for bundling light emitted from light sources |
| DE102011051541A1 (en) * | 2011-07-04 | 2013-01-10 | Hella Kgaa Hueck & Co. | Illumination device for in e.g. rear region, of motor car, has wall section closed with respect to side turned away to illuminant side and coaxial to axis in circumference direction, where axis extends to optical axis of light source unit |
| DE102011051541B4 (en) | 2011-07-04 | 2023-06-29 | HELLA GmbH & Co. KGaA | Lighting device for vehicles |
| DE102011052485B4 (en) | 2011-08-08 | 2022-05-19 | HELLA GmbH & Co. KGaA | Lamp for a vehicle |
| DE102011052485A1 (en) | 2011-08-08 | 2013-02-14 | Hella Kgaa Hueck & Co. | Lamp for vehicle, has one functional area and another functional area, which are formed in housing, and are separated from each other by partially opaque wall which is impermeable for light beam |
| DE102014212918A1 (en) * | 2014-07-03 | 2016-01-21 | Volkswagen Aktiengesellschaft | Motor vehicle lighting device |
| CN104456355B (en) * | 2014-11-15 | 2017-02-22 | 重庆长安汽车股份有限公司 | Automobile LED lamp lens |
| CN104456355A (en) * | 2014-11-15 | 2015-03-25 | 重庆长安汽车股份有限公司 | Automobile LED lamp lens |
| CN108291699A (en) * | 2015-11-12 | 2018-07-17 | 通用电气照明解决方案有限责任公司 | Method and apparatus for being used in combination with lighting system |
| US10274158B2 (en) | 2015-11-12 | 2019-04-30 | GE Lighting Solutions, LLC | Methods and apparatus for use in association with lighting systems |
| WO2017083450A1 (en) * | 2015-11-12 | 2017-05-18 | Ge Lighting Solution, Llc | Methods and apparatus for use in association with lighting systems |
| CN111197727A (en) * | 2018-11-19 | 2020-05-26 | Zkw集团有限责任公司 | Lighting device for a motor vehicle headlight and motor vehicle headlight |
| CN111197727B (en) * | 2018-11-19 | 2022-05-17 | Zkw集团有限责任公司 | Lighting device for a motor vehicle headlight and motor vehicle headlight |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OR8 | Request for search as to paragraph 43 lit. 1 sentence 1 patent law | ||
| 8105 | Search report available | ||
| R005 | Application deemed withdrawn due to failure to request examination |
Effective date: 20110730 |