DE102007028301A1 - Vehicle headlight has housing and semiconductor light source, which is arranged in housing and is thermally connected with heat sink by heat pipe - Google Patents
Vehicle headlight has housing and semiconductor light source, which is arranged in housing and is thermally connected with heat sink by heat pipe Download PDFInfo
- Publication number
- DE102007028301A1 DE102007028301A1 DE102007028301A DE102007028301A DE102007028301A1 DE 102007028301 A1 DE102007028301 A1 DE 102007028301A1 DE 102007028301 A DE102007028301 A DE 102007028301A DE 102007028301 A DE102007028301 A DE 102007028301A DE 102007028301 A1 DE102007028301 A1 DE 102007028301A1
- Authority
- DE
- Germany
- Prior art keywords
- heat sink
- housing
- vehicle headlight
- light source
- semiconductor light
- 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- Withdrawn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
- 239000004065 semiconductor Substances 0.000 title claims abstract description 32
- 238000009423 ventilation Methods 0.000 claims abstract description 11
- 238000001704 evaporation Methods 0.000 claims description 4
- 230000008020 evaporation Effects 0.000 claims description 4
- 238000009833 condensation Methods 0.000 claims description 3
- 230000005494 condensation Effects 0.000 claims description 3
- 238000005273 aeration Methods 0.000 claims description 2
- 230000017525 heat dissipation Effects 0.000 description 4
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
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
- F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
- F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
- F21S41/141—Light emitting diodes [LED]
- F21S41/143—Light emitting diodes [LED] the main emission direction of the LED being parallel to the optical axis of the illuminating device
- F21S41/145—Light emitting diodes [LED] the main emission direction of the LED being parallel to the optical axis of the illuminating device the main emission direction of the LED being opposite to the main emission direction of the illuminating device
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
- F21S45/40—Cooling of lighting devices
- F21S45/42—Forced cooling
- F21S45/43—Forced cooling using gas
- F21S45/435—Forced cooling using gas circulating the gas within a closed system
-
- 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
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/51—Cooling arrangements using condensation or evaporation of a fluid, e.g. heat pipes
-
- 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
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/60—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air
- F21V29/67—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air characterised by the arrangement of fans
- F21V29/673—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air characterised by the arrangement of fans the fans being used for intake
-
- 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
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
- F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
- F21S45/60—Heating of lighting devices, e.g. for demisting
-
- 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
- F21V7/0008—Reflectors for light sources providing for indirect lighting
-
- 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
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
Description
Die Erfindung betrifft einen Fahrzeugscheinwerfer mit einem Gehäuse und mindestens einer Halbleiterlichtquelle, die in dem Gehäuse angeordnet ist und mittels mindestens einer Heatpipe thermisch mit einem Kühlkörper verbunden ist.The The invention relates to a vehicle headlight with a housing and at least one semiconductor light source disposed in the housing and thermally connected by at least one heat pipe with a heat sink is.
Ein
derartiger Fahrzeugscheinwerfer ist aus der
Aus
der
Eine Wärmeableitung über die Frontscheibe ist nur effektiv, wenn die Kontaktfläche zwischen Heatpipe und Frontscheibe genügend groß ist und die Frontscheibe selbst genügend dick und groß ist, um die Wärme weiterzuleiten und an den Fahrtwind abzugeben. Dies kann aus technischen und/oder ästhetischen Gründen nicht möglich bzw. unerwünscht sein. Entsprechendes gilt bei Wärmeableitung über eine Kontaktfläche mit dem Gehäuse. Und einer Wärmeableitung über einen Kühlkörper im Inneren des Gehäuses wird durch die im Gehäuse erzielbare Konvektion Grenzen gesetzt.A Heat dissipation over the Front screen is only effective when the contact surface between Heat pipe and windscreen enough is great and the windscreen itself enough thick and big, for the heat forward and deliver to the airstream. This may be technical and / or aesthetic establish not possible or be undesirable. The same applies to heat dissipation via a contact area with the housing. And a heat dissipation over one Heat sink in Interior of the housing is through the housing achievable convection limits.
Der Erfindung liegt die Aufgabe zugrunde, die bei einem Fahrzeugscheinwerfer mit Halbleiterlichtquelle(n) mögliche Wärmeabfuhr mit möglichst wenig Aufwand zu erhöhen, um leistungsfähigere Halbleiterlichtquellen verwenden zu können bzw. sie wirkungsvoll zu kühlen.Of the Invention is based on the object that in a vehicle headlight possible with semiconductor light source (s) heat dissipation with as little as possible Increase effort, for more powerful semiconductor light sources to be able to use or to cool them effectively.
Diese Aufgabe wird bei einem gattungsgemäßen Fahrzeugscheinwerfer dadurch gelöst, dass Belüftungsmittel für zwangsweise Belüftung des Kühlkörpers vorgesehen werden.These Task is characterized in a generic vehicle headlights solved, that means of aeration forcibly ventilation provided the heat sink become.
In einer Ausführungsform, in der der Kühlkörper in dem Gehäuse angeordnet ist, sind die Belüftungsmittel ein Ventilator. In dieser Ausführungsform ist der Kühlkörper vorzugsweise ein Hohlrippenkühlkörper mit einer Lufteintrittsseite, auf der der Ventilator angeordnet ist, und einer Luftaustrittsseite, die zu der Frontscheibe hinweist.In an embodiment, in the heatsink in the housing is arranged, the ventilation means a fan. In this embodiment the heat sink preferably a hollow fin heat sink with an air inlet side, on which the fan is arranged, and an air exit side facing the front window.
In einer anderen Ausführungsform, in der der Kühlkörper außerhalb des Gehäuses angeordnet ist, sind die Belüftungsmittel Luftleitelemente zur Zwangsbelüftung des Kühlkörpers durch den Fahrtwind. In dieser Ausführungsform ist der Kühlkörper vorzugsweise ein Hohlrippenkühlkörper mit einer Lufteintrittsseite, die in Richtung der Vorderseite des Scheinwerfers weist, und ist vorzugsweise über ein flächiges Befestigungselement mit hoher Wärmeleitfähigkeit, das in die Wand des Gehäuses integriert ist, thermisch mit der mindestens einen Heatpipe gekoppelt.In another embodiment, in the heatsink outside of the housing is arranged, the ventilation means Air guide elements for forced ventilation of the heat sink the wind. In this embodiment is the heat sink preferably a hollow fin heat sink with an air intake side, which faces the front of the headlight points, and is preferably over a flat Fastener with high thermal conductivity, that in the wall of the housing is integrated, thermally coupled to the at least one heat pipe.
Vorzugsweise sind zwei parallel und in einem Abstand voneinander verlaufende Heatpipes vorgesehen, welche einen Träger der Halbleiterlichtquelle(n) frei vor einem Reflektor des Fahrzeugscheinwerfers tragen. Damit erhält man eine stabile Halterung der Halbleiterlichtquelle bei möglichst geringer Abschattung derselben.Preferably are two parallel and spaced apart Heatpipes provided which a support of the semiconductor light source (s) carry freely in front of a reflector of the vehicle headlight. In order to receives a stable mounting of the semiconductor light source as possible low shadowing of the same.
In einer anderen Ausführungsform des erfindungsgemäßen Fahrzeugscheinwerfers ist wenigstens eine oder jede Heatpipe so angeordnet, dass sie keine Steigung sondern vorteilhafterweise ein ausgeprägtes Gefälle vom Kondensationsbereich zum Verdampfungsbereich der Heatpipe aufweist. Dadurch ist sichergestellt, dass das in der Heatpipe gebildete Kondensat auch bei ungünstigen Fahrsituationen in Steigungs- oder Gefällstrecken verlässlich und effizient in Richtung des Verdampfungsbereiches fließen kann, ohne dass für die Wärmetransportleistung schädliche Stauungen des Kondensates zu befürchten sind. Dabei hat sich bei horizontal ausgerichtetem Fahrzeugscheinwerfer ein Gefälle der Heatpipe über ihren ganzen Verlauf von über 10% vorzugsweise über 30% relative zur Horizontalen des Fahrzeugscheinwerfers als sehr wirkungsvoll erwiesen. Je kleiner das Gefälle ist, desto langsamer und weniger verlässlich fließt das Kondensat in der Heatpipe vom Kondensationsbereich in Richtung des Verdampfungsbereiches, wodurch ein immer weniger guter bzw. verlässlicher Wärmetransport gegeben ist. Durch ein Gefälle von über 10 bzw. über 30% gegenüber der Horizontalen ist ein besonders guter Wärmetransport sichergestellt, der auch unter schwierigen Fahrsituationen verlässlich gegeben ist.In another embodiment of the vehicle headlamp according to the invention At least one or each heatpipe is arranged so that they have no Gradient but advantageously a pronounced gradient of the condensation region to the evaporation region of the heat pipe. This ensures that the condensate formed in the heat pipe even in unfavorable Driving situations in inclines or descents reliable and can flow efficiently in the direction of the evaporation zone, without for the heat transport performance damaging stagnation to fear the condensate are. This has to be with horizontally aligned vehicle headlights a gradient the heat pipe over her whole course of over 10% preferably over 30% relative to the horizontal of the vehicle headlight as very proven effective. The smaller the gradient, the slower and less reliable flows the condensate in the heat pipe from the condensation area in the direction the evaporation area, whereby a less and less good or reliable heat transport given is. By a slope from above 10 or over 30% over the horizontal ensures a particularly good heat transfer, which is reliable even under difficult driving conditions.
Es folgt eine Beschreibung von Ausführungsbeispielen der Erfindung anhand der Zeichnung. Darin zeigt:It follows a description of embodiments the invention with reference to the drawing. It shows:
Der
in
Der
andere, horizontal verlaufende Schenkel des Befestigungselements
Auf
der dem Befestigungselement
Die
Heatpipes
Am
von der Frontscheibe
Die
Halbleiterlichtquelle
Der
in
Im
Unterschied zum Ausführungsbeispiel von
Die
von den Heatpipes
Aufgrund
der Temperaturdifferenz von Frontscheibe
Alle
Verbindungen zwischen Bauteilen in
In den obigen Ausführungsbeispielen wurde die Erfindung anhand eines Fahrzeugscheinwerfers mit Reflektor erläutert. Ein Reflektorsystem hat den Vorteil, dass es bei LED-Chips oder LED-Arrays, die als quasi Lambertstrahler ungerichtet in einen kompletten Halbraum ausstrahlen, eine kürzere Baulänge und eine bessere Ausnutzung der emittierten Ausgangsstrahlung erlaubt als Linsensysteme. Die Erfindung ist grundsätzlich aber auch bei Linsensystemen oder Scheinwerfersystemen ohne Sammeloptik wie z.B. Halbleiterlaser-Scheinwerfern anwendbar.In the above embodiments The invention was based on a vehicle headlamp reflector explained. A reflector system has the advantage that it can be used with LED chips or LED arrays, which as a quasi Lambertstrahler undirected into a complete Radiate half space, a shorter one overall length and better utilization of the emitted output radiation allowed as lens systems. The invention is basically also in lens systems or Headlamp systems without collecting optics, such as Semiconductor laser headlights applicable.
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102007028301A DE102007028301A1 (en) | 2007-06-20 | 2007-06-20 | Vehicle headlight has housing and semiconductor light source, which is arranged in housing and is thermally connected with heat sink by heat pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102007028301A DE102007028301A1 (en) | 2007-06-20 | 2007-06-20 | Vehicle headlight has housing and semiconductor light source, which is arranged in housing and is thermally connected with heat sink by heat pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE102007028301A1 true DE102007028301A1 (en) | 2007-12-13 |
Family
ID=38663996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE102007028301A Withdrawn DE102007028301A1 (en) | 2007-06-20 | 2007-06-20 | Vehicle headlight has housing and semiconductor light source, which is arranged in housing and is thermally connected with heat sink by heat pipe |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE102007028301A1 (en) |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007055165A1 (en) * | 2007-11-19 | 2009-05-20 | Osram Gesellschaft mit beschränkter Haftung | LED headlights |
| DE102008003915A1 (en) * | 2008-01-10 | 2009-07-23 | Heinrich-Beck-Institut Gmbh | Headlight for motor vehicle, has rotational parabolic reflector collecting light of LED, where diameter of cooling tube is not larger than diameter of housing of LED, and shading of useful radiation is not larger than by LED |
| DE102008008664A1 (en) * | 2008-02-12 | 2009-09-10 | Continental Automotive Gmbh | Vehicle headlight for motor vehicles, particularly passenger car, comprises illuminant and cover disk arranged at its front side, and illuminant is positioned in area of cover disk and emits light in direction of rear side of headlight |
| EP2159486A1 (en) * | 2008-09-01 | 2010-03-03 | Valeo Vision | Lighting and/or signalling device for an automobile comprising a heat pipe |
| EP2148133A3 (en) * | 2008-07-24 | 2010-06-09 | Koito Manufacturing Co., Ltd. | Automotive lamp having fan |
| DE102010060642A1 (en) | 2010-11-18 | 2012-05-24 | Hella Kgaa Hueck & Co. | Headlight for vehicle, has housing which is provided with cooling portion that is connected with LED source of light by articulated joints, for transferring heat |
| FR2971463A1 (en) * | 2011-02-15 | 2012-08-17 | Peugeot Citroen Automobiles Sa | Anti-condensation device for e.g. headlight of electric car, has aluminum part including portions placed at interior and outside of cavity to maintain balancing temperature between interior and outside of cavity |
| DE102011011700A1 (en) * | 2011-02-18 | 2012-08-23 | GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) | LED headlight e.g. LED-matrix headlight, for motor car, has light source i.e. LED, connected with cooling body in heat conductive manner, and heat pipe for connecting cooling body to area of outer skin of vehicle or structure of vehicle |
| DE102011004493A1 (en) | 2011-02-22 | 2012-08-23 | Osram Ag | lighting device |
| WO2012113755A1 (en) | 2011-02-25 | 2012-08-30 | Osram Ag | Semiconductor lamp module and vehicle lamp |
| DE102011005701A1 (en) | 2011-03-17 | 2012-09-20 | Osram Ag | Lighting device and vehicle headlight with lighting device |
| DE102012012014A1 (en) | 2012-06-16 | 2013-01-17 | Daimler Ag | Apparatus for de-icing lighting unit, particularly headlight of vehicle, comprises heat sources, and heat conductor, which is disposed in cover plate of lightning unit, where heat conductor is thermally coupled to heat sources |
| DE102012205434A1 (en) * | 2012-04-03 | 2013-10-10 | Bayerische Motoren Werke Aktiengesellschaft | Lighting device for a motor vehicle |
| DE102015008569A1 (en) | 2015-07-02 | 2017-01-05 | Audi Ag | Lighting device and vehicle with the lighting device |
| DE102015114360A1 (en) | 2015-08-28 | 2017-03-02 | Hella Kgaa Hueck & Co. | Headlamp with improved cooling of semiconductor light sources |
| WO2019056032A1 (en) * | 2017-09-21 | 2019-03-28 | Litestudio Og | LIGHTING MODULE FOR THE RADIATION OF PARALLEL LIGHTED LIGHT |
| DE102018114765A1 (en) * | 2018-06-20 | 2019-12-24 | Zkw Group Gmbh | Motor vehicle headlamps |
-
2007
- 2007-06-20 DE DE102007028301A patent/DE102007028301A1/en not_active Withdrawn
Cited By (29)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007055165A1 (en) * | 2007-11-19 | 2009-05-20 | Osram Gesellschaft mit beschränkter Haftung | LED headlights |
| DE102008003915A1 (en) * | 2008-01-10 | 2009-07-23 | Heinrich-Beck-Institut Gmbh | Headlight for motor vehicle, has rotational parabolic reflector collecting light of LED, where diameter of cooling tube is not larger than diameter of housing of LED, and shading of useful radiation is not larger than by LED |
| DE102008008664A1 (en) * | 2008-02-12 | 2009-09-10 | Continental Automotive Gmbh | Vehicle headlight for motor vehicles, particularly passenger car, comprises illuminant and cover disk arranged at its front side, and illuminant is positioned in area of cover disk and emits light in direction of rear side of headlight |
| DE102008008664B4 (en) * | 2008-02-12 | 2011-03-31 | Continental Automotive Gmbh | Vehicle headlamp with quick removal of moisture or ice on its shroud |
| KR101045628B1 (en) | 2008-07-24 | 2011-07-01 | 가부시키가이샤 고이토 세이사꾸쇼 | Automotive Lighting |
| US8985824B2 (en) | 2008-07-24 | 2015-03-24 | Koito Manufacturing Co., Ltd. | Automotive lamp having fan |
| EP2148133A3 (en) * | 2008-07-24 | 2010-06-09 | Koito Manufacturing Co., Ltd. | Automotive lamp having fan |
| EP2159486A1 (en) * | 2008-09-01 | 2010-03-03 | Valeo Vision | Lighting and/or signalling device for an automobile comprising a heat pipe |
| FR2935461A1 (en) * | 2008-09-01 | 2010-03-05 | Valeo Vision Sas | DEVICE FOR LIGHTING AND / OR SIGNALING A MOTOR VEHICLE COMPRISING A HEAT PUMP |
| DE102010060642A1 (en) | 2010-11-18 | 2012-05-24 | Hella Kgaa Hueck & Co. | Headlight for vehicle, has housing which is provided with cooling portion that is connected with LED source of light by articulated joints, for transferring heat |
| DE102010060642B4 (en) | 2010-11-18 | 2019-12-12 | HELLA GmbH & Co. KGaA | Headlamp with an improved arrangement of a heat sink |
| FR2971463A1 (en) * | 2011-02-15 | 2012-08-17 | Peugeot Citroen Automobiles Sa | Anti-condensation device for e.g. headlight of electric car, has aluminum part including portions placed at interior and outside of cavity to maintain balancing temperature between interior and outside of cavity |
| DE102011011700A1 (en) * | 2011-02-18 | 2012-08-23 | GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) | LED headlight e.g. LED-matrix headlight, for motor car, has light source i.e. LED, connected with cooling body in heat conductive manner, and heat pipe for connecting cooling body to area of outer skin of vehicle or structure of vehicle |
| DE102011004493A1 (en) | 2011-02-22 | 2012-08-23 | Osram Ag | lighting device |
| WO2012113705A2 (en) | 2011-02-22 | 2012-08-30 | Osram Ag | Lighting device |
| DE102011004746A1 (en) | 2011-02-25 | 2012-08-30 | Osram Ag | Semiconductor lighting module and vehicle light |
| DE102011004746B4 (en) | 2011-02-25 | 2023-09-28 | Osram Gmbh | Semiconductor lighting module and vehicle light |
| WO2012113755A1 (en) | 2011-02-25 | 2012-08-30 | Osram Ag | Semiconductor lamp module and vehicle lamp |
| DE102011005701A1 (en) | 2011-03-17 | 2012-09-20 | Osram Ag | Lighting device and vehicle headlight with lighting device |
| WO2012123300A1 (en) | 2011-03-17 | 2012-09-20 | Osram Ag | Illumination device and motor vehicle headlight comprising an illumination device |
| DE102012205434A1 (en) * | 2012-04-03 | 2013-10-10 | Bayerische Motoren Werke Aktiengesellschaft | Lighting device for a motor vehicle |
| DE102012012014A1 (en) | 2012-06-16 | 2013-01-17 | Daimler Ag | Apparatus for de-icing lighting unit, particularly headlight of vehicle, comprises heat sources, and heat conductor, which is disposed in cover plate of lightning unit, where heat conductor is thermally coupled to heat sources |
| DE102015008569B4 (en) | 2015-07-02 | 2023-05-04 | Audi Ag | Lighting device and vehicle with the lighting device |
| DE102015008569A1 (en) | 2015-07-02 | 2017-01-05 | Audi Ag | Lighting device and vehicle with the lighting device |
| EP3115679A1 (en) | 2015-07-02 | 2017-01-11 | Audi Ag | Lighting device and vehicle with the lighting device |
| DE102015114360A1 (en) | 2015-08-28 | 2017-03-02 | Hella Kgaa Hueck & Co. | Headlamp with improved cooling of semiconductor light sources |
| US10995944B2 (en) | 2017-09-21 | 2021-05-04 | Litestudio Og | Illumination module for emitting light directed in parallel |
| WO2019056032A1 (en) * | 2017-09-21 | 2019-03-28 | Litestudio Og | LIGHTING MODULE FOR THE RADIATION OF PARALLEL LIGHTED LIGHT |
| DE102018114765A1 (en) * | 2018-06-20 | 2019-12-24 | Zkw Group Gmbh | Motor vehicle headlamps |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OAV | Publication of unexamined application with consent of applicant | ||
| 8127 | New person/name/address of the applicant |
Owner name: DAIMLER AG, 70327 STUTTGART, DE |
|
| R081 | Change of applicant/patentee |
Owner name: MOISEL, JOERG, DR.RER.NAT., DE Free format text: FORMER OWNER: DAIMLER AG, 70327 STUTTGART, DE Effective date: 20140429 |
|
| R005 | Application deemed withdrawn due to failure to request examination | ||
| R005 | Application deemed withdrawn due to failure to request examination |
Effective date: 20140621 |