EP2223014A1 - Led-scheinwerfer - Google Patents
Led-scheinwerferInfo
- Publication number
- EP2223014A1 EP2223014A1 EP08852951A EP08852951A EP2223014A1 EP 2223014 A1 EP2223014 A1 EP 2223014A1 EP 08852951 A EP08852951 A EP 08852951A EP 08852951 A EP08852951 A EP 08852951A EP 2223014 A1 EP2223014 A1 EP 2223014A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- heat
- led
- headlight
- housing
- cooling
- 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.)
- Granted
Links
- 238000001816 cooling Methods 0.000 claims abstract description 53
- 229910052724 xenon Inorganic materials 0.000 claims description 11
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 claims description 11
- 239000012530 fluid Substances 0.000 claims description 6
- 239000012809 cooling fluid Substances 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000002041 carbon nanotube Substances 0.000 description 1
- 229910021393 carbon nanotube Inorganic materials 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 125000006850 spacer group Chemical group 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
- 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
- F21V29/71—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks using a combination of separate elements interconnected by heat-conducting means, e.g. with heat pipes or thermally conductive bars between separate heat-sink elements
-
- 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]
- F21S41/151—Light emitting diodes [LED] arranged in one or more lines
-
- 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
- F21S45/30—Ventilation or drainage of lighting devices
- F21S45/33—Ventilation or drainage of lighting devices specially adapted for headlamps
-
- 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
- F21S45/47—Passive cooling, e.g. using fins, thermal conductive elements or openings
- F21S45/48—Passive cooling, e.g. using fins, thermal conductive elements or openings with means for conducting heat from the inside to the outside of the lighting devices, e.g. with fins on the outer surface of the lighting device
-
- 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
- F21V29/56—Cooling arrangements using liquid coolants
-
- 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
- F21V29/85—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems characterised by the material
- F21V29/89—Metals
-
- 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]
Definitions
- the invention relates to an LED headlight, in particular for use in vehicles, especially motor vehicles.
- the LED vehicle headlight has generically at least one light-emitting diode (LED) as a light source. It is exclusively equipped with LED lamps LED headlights and LED headlights with a mix of LED lamps and non-LED lamps, such. As incandescent lamps, xenon lamps, etc. (LED hybrid headlamp) includes. Each LED lamp has at least one LED as the light source. Furthermore, at least one heat-conducting element is present, extending from at least one in a heat source located in a headlight housing extends to heat-contacting at least one cooling element, wherein the cooling element is arranged at least partially on the outside of the headlight housing.
- LED light-emitting diode
- the heat-conducting element is designed to dissipate heat from the at least one heat source.
- heat sources typically occur the LEDs (as a primary heat source) and / or secondarily connected to their operation associated components, eg. B. a LED (s) carrying board, holder (So ⁇ ckel), and so on.
- Other heat sources may include electronic components, such. B. driver blocks for operating at least one LED.
- the heat-conducting element is thus in contact with the heat at one side in contact with at least one of the heat sources (LED directly or indirectly via board, holder etc. or electronic component, etc.) and is in heat-contacting contact with a cooling element mounted on the spotlight housing on another side.
- the heat-conducting element consequently provides a thermal bridge between at least one of the heat sources and the cooling element arranged at least partially on the outside, as a result of which the heat conducted by the heat-conducting element to the cooling element can be dissipated effectively from the headlight to the outside.
- Each heat source can be connected via its own heat conducting element with an associated cooling element, alternatively, several heat sources can share a heat conducting element.
- the position of the cooling element or the cooling elements is possible in the engine compartment on all sides of the headlamp. In other words, heat generated in the headlight housing is dissipated via the good heat-dissipating cooling element to the outside.
- the cooling element preferably has good heat-conducting material (thermal conductivity ⁇ in particular ⁇ 15 W / (mK), especially> 200 W / (mK)), such.
- B. made of metal, especially iron, copper and / or aluminum, or thermally conductive plastic, for.
- carbon especially carbon nanotubes.
- This LED headlamp has the advantage of providing an effective, maintenance-free, space-saving and long-life LED headlamp cooling system. In particular, this also allows the use of high power LED systems within closed systems. Particularly advantageous for motor vehicle manufacturers and suppliers is that such an LED headlight can be used at least at the interface level without or with only slight adaptation in existing motor vehicle constructions (retro-fit), which is particularly suitable for halogen or xenon Headlamp is beneficial.
- a headlamp in which the heat-conducting element is mechanically movable or adjustable.
- the heat-conducting element is mechanically movable or adjustable.
- a headlight can be advantageous, in which the heat-conducting element comprises at least one (in particular movable or adjustable) heat pipe ('heat pipe').
- the heat-conducting element has at least two heat pipes standing in thermal contact with one another and displaceably arranged relative to one another, or heat pipe sections.
- a mobility can be achieved for example by a flat, sliding contact of two heat pipes or heat pipe parts.
- a headlamp may also be advantageous, in which the heat-conducting element comprises a cooling circuit with at least one (in particular flexible) fluid line which is filled with a cooling fluid.
- a cooling fluid in particular a cooling liquid, in a fundamentally ⁇ known manner between the region adjacent to the heat source and the region adjacent to the cooling element.
- the cooling circuit can be designed passive. For increased heat dissipation, however, it may be advantageous if it has a pump for circulation of the cooling fluid.
- Cooling elements may passive heat sinks, such as cooling fins, cooling pads, heat pipes, etc., thermosiphon and / or active cooling systems, such. B. with fan include.
- existing cooling systems can be used, such as a cooling circuit of an air conditioner; However, this is usually associated with increased installation costs.
- the mere presence of the heat transfer interface already improves the cooling due to the heat radiation to the outside.
- a (at least) two-piece design has the advantage of high design flexibility, since when the housing is changed, only the heat transfer interface needs to be redesigned, and vice versa, different heatsink types can be easily mounted on the headlight housing.
- the cooling element has a heat convection heat sink, for direct attachment to the housing and the heat conducting element or indirectly via the heat transfer interface.
- the cooling element has a fan. It may also be preferred if the cooling element has a thermosyphone.
- the heat-conducting element is guided through an opening in the headlight housing.
- the opening in the headlight housing can closely surround the heat-conducting element.
- the opening can be so large that it surrounds the heat-conducting element far.
- the LED headlight covers the opening, in particular on the outside.
- the heat-conducting element is led to a cooling element arranged at a distance from the opening.
- an LED headlight in which the headlight housing is compatible with a xenon headlight housing (retrofit) and the cooling element is mounted instead of an electronic ballast for a xenon headlight on the headlight housing.
- the heat conducting element is designed widened towards the housing, z. B. funnel-shaped or cone-shaped widened towards the contact surface.
- thermo-conductive films in the heat path between the heat source or LED and the cooling element further elements may be present, for. B. thermo-conductive films, etc.
- 1 shows a sectional view of an LED headlight according to a first embodiment
- 2 shows a sectional view of an LED headlight according to a second embodiment
- FIG. 3 shows a sectional view of an LED headlamp according to a third embodiment
- FIG. 4 shows a sectional view of an LED headlight according to a fourth embodiment.
- LED headlight 1 shows a sectional view of an LED headlight 1, in which in a headlight housing 2 made of plastic three equipped with LEDs lamps (LED lamps) 3 are included as light sources, which emit their light through an optically transparent front 4.
- the LED lamps 3 for example, serve as dipped beam, high beam or turn signals.
- the LED lamps 3 are connected via cable 6 together with an electrical interface 5.
- the LED lamps 3 are thermally conductively connected by means of a common movable heat pipe 7 with a good heat-conducting heat transfer interface 9 made of iron, copper, aluminum or alloys thereof.
- the heat pipe 7 rests on the one hand on a metal base of a respective LED cluster (not shown) of an associated LED lamp 3, ie indirectly, but with good heat conduction with the LEDs of the LED clusters as primary heat sources.
- the heat pipe 7 leads through a Gehauseo réelle 8 to a outside of the housing 2 mounted heat transfer interface 9 in the form of a Metallkorpers which closes the opening 8.
- a Warmekonvezzyskuhlkorper 10 is flanged with Kuhlrippen on a thermally conductive adhesive paste on the heat transfer interface 9.
- the Cooling element is thus constructed in two parts from the heat transfer interface 9 and the bankskonvemieskühl stresses 10.
- a two-piece design has the advantage of high design flexibility since, when the housing shape changes in the region of the opening 8, only the heat transfer interface 9 needs to be redesigned and, conversely, different heat sinks can be attached to a uniform interface.
- the LEDs When the LEDs are operated, their heat is first conducted to the heat transfer interface 9 via the heat pipe 7 serving as a thermal bridge. Subsequently, the heat is transferred over a large area from the heat transfer interface 9 to the external heat convection heat sink 10, which dissipates them by heat convection to the environment.
- the heat pipe 7 is designed to adjust the lamps 3 movable.
- a mobility along the x-axis is achieved here by virtue of the fact that the straight sections 7a emerging from the LED lamps 3 each have two heat-pipe sections or sections which are inserted into one another in a heat-contacting manner and which are displaceable relative to one another along the x-direction, e.g. B. 3 to 5 cm.
- the heat pipe 7 can then also be considered as two-piece and inserted into one another.
- the headlight housing 2 is compatible with a xenon headlight housing in that the opening 8 for attachment of the heat transfer interface 9 corresponds to the opening for mounting an electronic ballast, electronic ballast, for a xenon headlight.
- the opening for the heat transfer interface 9 is substantially identical in shape to the opening of a xenon headlamp intended for an electronic ballast.
- FIG 2 shows another embodiment of an LED glow ⁇ thrower 11 in which now, in contrast to the embodiment of FIG heat pipe 12 is connected at two different points with a respective heat transfer interface 9. 1 This enhances heat dissipation.
- FIG 3 shows yet another embodiment of an LED headlight 14, in which the heat pipe 15 is drawn directly from the heat source (LEDs or LED socket of the respective LED lamp 3) to heat source.
- the heat sink 16 is made in one piece and attached to the housing 17, the opening 8 overlapping.
- the heat sink 16 is equipped as a casting with cooling fins on its upper side and has an underside configured for attachment to the housing 17, which has a circumferential surround which fits into the opening 8 and a seal which can be placed on the housing 17 (not shown).
- each LED lamp 3 or its heat source (s) directly or indirectly
- its own heat pipe 19,20,21 with a respective associated heat sink 22,23 or 24 are connected in a heat-contacting manner.
- the heat pipes 19,20,21 a common, the openings 8 overlapping heat sink be assigned.
- the cooling element may additionally have a fan or be configured as a thermosyphone instead of a heat convection heat sink.
- a fluid cooling system or a fluid cooling circuit with at least one flexible fluid line can be used, with or without pump for circulating the fluid, or else a flexible heat conducting element made of highly conductive (thermal conductivity ⁇ preferably ⁇ 15 W / (mK) ), especially> 200 W / (mK)) Material, eg. B. a flexible copper or aluminum braid.
- Thermally conductive plastics are also conceivable as heat transfer interfaces and / or for use in heat sinks.
- other passive or active cooling systems may be used, e.g. B. using one or more fans. It is also possible to use combinations of different cooling elements.
- the heat pipe may be provided at its end facing the housing surface with a widening to the housing transition piece to improve heat transfer to the housing.
- heat pipe parts For mobility in several directions, for example, mutually displaceable, but in thermal contact (for example, plugged into each other) heat pipe parts may be curved. There may be more than one relocation point. Except by plugging, for example, two laterally staggered heat pipe parts can be in thermal contact with their sides and be displaceable along their common longitudinal axis, z. B. by means of a sliding bearing arranged between them.
- the heat transfer interface need not cover an opening, but may for example be mounted completely outside the housing, for. B. by means of spacers.
- the heat pipe can then z. B. by a narrow passage through the housing and then outside the housing ses be further led to the cooling element.
- a one-piece design of the cooling element is particularly appropriate.
- the LED headlights need not only be equipped with LED lamps, but can, for example, only show at least one LED lamp. Other lamps may then have different light sources, for. B. a light bulb (LED hybrid headlamp) and do not need to be equipped with a heat conducting element.
- the LED lamps may be connected in series, in parallel or independently.
- the LED headlamp is not limited to use in automobiles, but may for example be used for other vehicles such as ships, aircraft, etc., or for general lighting purposes such. B. for building lighting, for cranes, etc.
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)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007055165A DE102007055165A1 (de) | 2007-11-19 | 2007-11-19 | LED-Scheinwerfer |
PCT/EP2008/009725 WO2009065548A1 (de) | 2007-11-19 | 2008-11-17 | Led-scheinwerfer |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2223014A1 true EP2223014A1 (de) | 2010-09-01 |
EP2223014B1 EP2223014B1 (de) | 2015-11-04 |
Family
ID=40185211
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08852951.6A Active EP2223014B1 (de) | 2007-11-19 | 2008-11-17 | Led-scheinwerfer |
Country Status (5)
Country | Link |
---|---|
US (1) | US20100277941A1 (de) |
EP (1) | EP2223014B1 (de) |
CN (1) | CN101868671B (de) |
DE (1) | DE102007055165A1 (de) |
WO (1) | WO2009065548A1 (de) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101043278B1 (ko) * | 2009-08-26 | 2011-06-21 | 현대모비스 주식회사 | 차량용 헤드램프 |
DE102009047569A1 (de) * | 2009-12-07 | 2011-06-09 | Osram Gesellschaft mit beschränkter Haftung | Lampe mit Schaltungsanordnung und zugehöriges Herstellungsverfahren |
DE102009060434B4 (de) * | 2009-12-22 | 2013-07-04 | Trilux Gmbh & Co. Kg | Geschlossene LED-Leuchte mit thermischem Koppelelement |
DE102010007687A1 (de) * | 2010-02-08 | 2011-08-11 | Siemens Aktiengesellschaft, 80333 | LED-Lampe mit Wärmerohr als Kühlung |
DE102010002664A1 (de) | 2010-03-08 | 2011-09-08 | Osram Gesellschaft mit beschränkter Haftung | LED-Leuchte |
US20110227507A1 (en) * | 2010-03-18 | 2011-09-22 | Glp German Light Products Gmbh | Illumination apparatus |
DE102011011700A1 (de) | 2011-02-18 | 2012-08-23 | GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) | LED-Scheinwerfer, Kraftfahrzeug mit einem LED-Scheinwerfer und Verfahren zur Kühlung eines LED-Scheinwerfers |
DE102011004493A1 (de) * | 2011-02-22 | 2012-08-23 | Osram Ag | Beleuchtungseinrichtung |
DE102011120123A1 (de) | 2011-12-03 | 2013-06-06 | Gm Global Technology Operations, Llc | LED-Scheinwerferanordnung, Kraftfahrzeug mit zumindest einer LED-Scheinwerferanordnung sowie Verfahren zur Kühlung eines LED-Scheinwerfers |
SI24505A (sl) * | 2013-10-18 | 2015-04-30 | Hella Saturnus Slovenija, Proizvodnja Svetlobne Opreme Za Motorna In Druga Vozila, D.O.O. | Svetilo motornega vozila z izboljšanim odvodom toplote |
KR102234377B1 (ko) * | 2014-07-31 | 2021-03-31 | 엘지이노텍 주식회사 | 차량용 램프 |
WO2016020218A1 (en) * | 2014-08-08 | 2016-02-11 | Koninklijke Philips N.V. | Led device with flexible thermal interface |
DE102014217043A1 (de) * | 2014-08-27 | 2016-03-03 | Volkswagen Aktiengesellschaft | Kraftfahrzeug-Beleuchtungsvorrichtung |
DE102015114360A1 (de) * | 2015-08-28 | 2017-03-02 | Hella Kgaa Hueck & Co. | Scheinwerfer mit einer verbesserten Entwärmung von Halbleiterlichtquellen |
AT518977B1 (de) * | 2016-11-17 | 2018-03-15 | Zkw Group Gmbh | Kühlkörper mit variablem thermischen Widerstand |
DE102017114466A1 (de) * | 2017-06-29 | 2019-01-03 | Automotive Lighting Reutlingen Gmbh | Kühlkörper aus Aluminium zum Abführen von Wärme von Halbleiter-Lichtquellen und Kraftfahrzeugbeleuchtungseinrichtung mit einem solchen Kühlkörper |
EP3499119A1 (de) * | 2017-12-18 | 2019-06-19 | Covestro Deutschland AG | Vorrichtung zum ableiten von wärme von einer wärmequelle und verwendung dieser vorrichtung |
CN110375267A (zh) * | 2019-07-02 | 2019-10-25 | 重庆长安汽车股份有限公司 | 一种汽车灯具 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1357335A2 (de) * | 2002-04-23 | 2003-10-29 | Nichia Corporation | Beleuchtungsvorrichtung |
WO2004055433A1 (de) * | 2002-12-16 | 2004-07-01 | Daimlerchrysler Ag | Scheinwerfereinheit für ein kraftfahrzeug |
FR2889291A1 (fr) * | 2005-07-28 | 2007-02-02 | Koito Mfg Co Ltd | Lampe de vehicule |
DE102006001711A1 (de) * | 2006-01-13 | 2007-07-26 | Audi Ag | Beleuchtungseinrichtung für ein Kraftfahrzeug |
JP2009087620A (ja) * | 2007-09-28 | 2009-04-23 | Toyoda Gosei Co Ltd | 車両用ヘッドライト |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4102240B2 (ja) * | 2003-04-08 | 2008-06-18 | 株式会社小糸製作所 | 車両用前照灯 |
DE102004025640A1 (de) * | 2004-05-25 | 2005-12-22 | Hella Kgaa Hueck & Co. | Scheinwerfer mit am Leuchtmittel angeordnetem Wärmetauscher |
DE102004047324A1 (de) | 2004-09-29 | 2006-04-13 | Osram Opto Semiconductors Gmbh | Leuchtdiodenanordnung |
DE102004048134A1 (de) * | 2004-10-02 | 2006-04-06 | Robert Bosch Gmbh | Kraftstoffeinspritzventil für Brennkraftmaschinen |
WO2006052022A1 (en) * | 2004-11-12 | 2006-05-18 | Showa Denko K.K. | Automotive lighting fixture and lighting device |
DE202005007501U1 (de) * | 2005-05-12 | 2005-08-18 | Automotive Lighting Reutlingen Gmbh | Kraftfahrzeugleuchte umfassend mindestens eine Leuchtdiode |
DE102006036058A1 (de) * | 2006-08-02 | 2008-02-14 | Audi Ag | Beleuchtungseinrichtung für ein Kraftfahrzeug |
US20080089070A1 (en) * | 2006-10-12 | 2008-04-17 | Chin-Wen Wang | Led lamp module with adjustable illuminating angle |
DE202006019381U1 (de) * | 2006-12-22 | 2007-02-22 | Lin, Chun-Hen, Shulin City | Wassergekühlte Wärmeableitevorrichtung für Fahrzeuge |
US20080247177A1 (en) * | 2007-02-09 | 2008-10-09 | Toyoda Gosei Co., Ltd | Luminescent device |
DE102007028301A1 (de) * | 2007-06-20 | 2007-12-13 | Daimlerchrysler Ag | Fahrzeugscheinwerfer mit Halbleiterlichtquelle |
-
2007
- 2007-11-19 DE DE102007055165A patent/DE102007055165A1/de not_active Withdrawn
-
2008
- 2008-11-17 US US12/743,575 patent/US20100277941A1/en not_active Abandoned
- 2008-11-17 WO PCT/EP2008/009725 patent/WO2009065548A1/de active Application Filing
- 2008-11-17 EP EP08852951.6A patent/EP2223014B1/de active Active
- 2008-11-17 CN CN200880116796.XA patent/CN101868671B/zh active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1357335A2 (de) * | 2002-04-23 | 2003-10-29 | Nichia Corporation | Beleuchtungsvorrichtung |
WO2004055433A1 (de) * | 2002-12-16 | 2004-07-01 | Daimlerchrysler Ag | Scheinwerfereinheit für ein kraftfahrzeug |
FR2889291A1 (fr) * | 2005-07-28 | 2007-02-02 | Koito Mfg Co Ltd | Lampe de vehicule |
DE102006001711A1 (de) * | 2006-01-13 | 2007-07-26 | Audi Ag | Beleuchtungseinrichtung für ein Kraftfahrzeug |
JP2009087620A (ja) * | 2007-09-28 | 2009-04-23 | Toyoda Gosei Co Ltd | 車両用ヘッドライト |
Non-Patent Citations (1)
Title |
---|
See also references of WO2009065548A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2009065548A1 (de) | 2009-05-28 |
EP2223014B1 (de) | 2015-11-04 |
CN101868671B (zh) | 2014-04-23 |
DE102007055165A1 (de) | 2009-05-20 |
US20100277941A1 (en) | 2010-11-04 |
CN101868671A (zh) | 2010-10-20 |
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