EP2885573A1 - Lichtsystem mit einer kühlvorrichtung und einem optischen körper - Google Patents
Lichtsystem mit einer kühlvorrichtung und einem optischen körperInfo
- Publication number
- EP2885573A1 EP2885573A1 EP13753832.8A EP13753832A EP2885573A1 EP 2885573 A1 EP2885573 A1 EP 2885573A1 EP 13753832 A EP13753832 A EP 13753832A EP 2885573 A1 EP2885573 A1 EP 2885573A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cooling device
- optical component
- light
- optical
- counter
- 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 title claims abstract description 101
- 230000003287 optical effect Effects 0.000 title claims abstract description 87
- 230000013011 mating Effects 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 7
- 238000007599 discharging Methods 0.000 abstract 1
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000000007 visual effect Effects 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
- 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
-
- 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
- F21S45/49—Attachment of the cooling means
-
- 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
-
- 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
- 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]
- F21S41/147—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device
- F21S41/148—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device the main emission direction of the LED being perpendicular to the optical axis
-
- 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
- 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 present invention relates to a cooling device, an optical component, a lighting system with a cooling device and an optical component and a
- Lighting systems and cooling devices and optical components for lighting systems are known in principle. They are z. B. used in vehicles to form light modules or light units. In modern lighting systems LEDs are often used as lighting. Depending on which luminous intensity is to be achieved, very high powers must be provided by these LEDs. In particular, high-power LEDs with powers of one to several watts are in use. In addition to the light emission, heat is generated when these LEDs are activated. Because heat the
- a cooling device which usually rib-like structures for
- a light system with a cooling device and an optical component and such a cooling device and such an optical component and moreover to provide a method for assembling a lighting system, which in a cost effective and simple way a Generaleredutation for various optical light systems and thus allow for a variety of optical components.
- Cooling device are described, of course, also in connection with the optical component according to the invention, the light system according to the invention and the method according to the invention and in each case vice versa, so that with respect to the disclosure of the individual aspects of the invention is always reciprocally referred to or can be.
- This heat sink is equipped with at least one contact surface for the absorption of heat from the at least one light source.
- the heat sink has at least one cooling element for the delivery of the absorbed heat.
- a cooling device according to the invention is characterized in that the heat sink has a mechanical interface which is designed for the optional arrangement at counter-intersections of at least two different optical components.
- a cooling device is thus based on known cooling devices with regard to their cooling capacity.
- these cooling devices are preferably plate-shaped, so that a first side as a contact surface and the opposite side are formed as a heat transfer surface with cooling elements.
- the cooling elements can aim in particular at an increase in the surface, and z. B. have rib-like structures.
- a cooling device is capable of being used for different, namely at least two different optical components.
- the heat sink has a mechanical interface, which is designed for arranging, in particular even for fastening, the cooling body and thus the cooling device to at least two different optical components.
- this mechanical interface is to be understood such that the user of a
- Cooling device this optionally at least two
- optical components can use different optical components.
- the optical components are specifically adapted to different vehicles.
- optical components are provided with a counter-interface, which cooperates with the mechanical interface of the cooling device according to the invention. In this way it is possible to use the cooling device both in one, as well as in the other mating interface of the respective optical component.
- a counter-interface which cooperates with the mechanical interface of the cooling device according to the invention.
- Cooling device can be used in a variety of different optical components.
- This one cooling device can be used for various types of optical components z. B. are used in different vehicles. In this way one becomes Common part concept for the cooling device for various optical components possible.
- the material of the heat sink, in particular between the contact surface and the cooling elements, is preferably with high thermal conductivity and
- the lighting means Accordingly formed with low thermal resistance. Moreover, it is preferably possible that on the heat sink, the lighting means or a
- the light source is preferably an LED, in particular a high-power LED with a power of more than one watt.
- more than one light source or more than one light source can be used for a cooling device according to the invention.
- Carrier board of the light source can preferably be arranged with fastening means on the cooling device, in particular on the heat sink.
- fastening means on the cooling device in particular on the heat sink.
- Heat transfer between the light sources on the board on the one hand and the cooling device, in particular the heat sink, on the other hand is possible.
- a mechanical interface is in the context of the present invention, a geometric design of a portion of the heat sink.
- a mechanical interface has at least one contact section, which can be supported on a mating abutment section of the optical component.
- more complex designs in geometric terms for the mechanical interface and accordingly also for the mechanical counter-interfaces are possible.
- not only an arrangement, but also a fastening takes place via the mechanical interface.
- An optical component in the sense of the present invention is in particular a component which exerts a direct or an indirect influence on the light emitted by the light source.
- An indirect influence is z. Legs Reflection surface, so that light emitted from the light source and impinging on the optical component, is deflected by the reflection surface.
- Direct influencing of the light is also possible if the optical component is formed, at least in sections, as a light-conducting component, in particular as a so-called TIR (Total Internal Reflection) body.
- a cooling device can be further developed such that the mechanical interface has at least one abutment surface for abutment against at least one counterstop surface of the optical component. These surfaces do not necessarily lie in one plane. However, it is advantageous if both the abutment surface, as well as the counter stop surface have a substantially planar extension. This leads to a particularly advantageous surface contact and lower production costs. Of course, more than one can
- Stop surface and thus be provided more than a counter-stop surface, so that an even safer arrangement, preferably even a mounting of the cooling device to the optical component is possible. These are both at the stop surface, as well as at the counter stop surface to
- a cooling device in the context of the present invention can be further developed such that the at least one abutment surface with the at least one counterstop surface forms a guide, which is designed in particular as a guide of a rib in a groove.
- This guide is used in particular a mounting movement in a mounting direction.
- this guide may be formed as a rib in a groove, wherein the rib may have a shape that allows a variety of security directions.
- only a single direction is defined as mounting direction and thus gives the only
- the rib can z. B. be a simple extension with a substantially rectangular cross-section. Also dovetailed ribs, which are guided in a corresponding dovetail groove, are in the context of
- z As a material for the cooling device, in particular the heat sink, z. As metal or plastic used. As metal z. As aluminum or copper as advantageous materials to name, in particular with regard to their
- a cooling device can be further developed in that the guide has a mounting direction, wherein the guide in
- Mounting direction has a reduction in the geometric dimensions. This makes it possible to increase the guiding force between the at least one abutment surface and the at least one counter abutment surface.
- the leadership z. B. formed as a rib and groove this means that the rib in the mounting direction has a tapered free cross-section.
- the rib with a constant cross-section will therefore be easily inserted on both sides during insertion with much play. If the groove progressively narrows in the mounting direction, the rib will finally come into contact with the side surfaces of the groove at least on one side, and later also on both sides. This increases friction and thus the contact pressure between rib and groove. In particular, therefore, a jamming and thereby a fixing arranging the rib in the groove.
- Another object of the present invention is an optical component for influencing the direction of light from at least one light source in a lighting system.
- Such an optical component has an optical body with at least an optically active surface for influencing the direction of the light.
- Such an optical component is characterized in that the optical body has a mechanical counter-interface, which is designed for the arrangement of at least one cooling device.
- the optical component thus serves, in particular, as a counterpart to the cooling device according to the invention, so that the two together can form a lighting system explained in more detail later.
- An optically active surface in the sense of the present invention is an area which can influence the direction of light. This can be done by external
- Reflections as is the case with indirect use of the optical component. Incident light is changed and reflected in direction. Direct influencing is also possible if the optical body is designed as a light-conducting component, in particular as a TIR body. This can z. B. take place by metallizing coating on the outside of the optical body internal reflection, whereby the direction of the light is changed.
- An optical component according to the invention is able to interact via the mechanical counter-interface, in particular with a cooling device according to the invention. Accordingly, a cooling device can now be used for this optical component, which can be produced as a standardized component in large quantities. This reduces the cost of the lighting system equipped with such a specific optical component and a universal cooling device according to the invention.
- An optical component according to the invention can be further developed such that the mechanical counter-interface is designed for the arrangement of at least one cooling device according to the present invention.
- the optical body of the optical component, the counter-attack surface on or the mating interface as has been explained in detail to the cooling device according to the invention.
- An optical component according to the invention thus brings with it the same advantages as have been described in detail with reference to a cooling device according to the invention.
- the optical component according to the invention is preferably further developed such that the optical body is at least partially one of the following configurations:
- - Lens or lens system in particular comprising at least one
- the embodiments described above can also be combined with each other in an optical component.
- light-guiding devices and TIR bodies are used for directly influencing the light
- the reflector serves to indirectly influence the light.
- Under direct influence is to be understood as an influence of light within the body, while an indirect influence affects light which impinges on the optics body from the outside.
- Another object of the present invention is a lighting system with a cooling device and an optical component.
- a lighting system is characterized in that the cooling device according to the present invention and / or the optical component according to the present invention are formed.
- a lighting system according to the invention brings with it the same advantages as have been explained in detail with reference to an optical component according to the invention or with reference to a cooling device according to the invention.
- Such a lighting system is thus preferably the situation in the installed state, so that a specific optical component is combined with a cooling device originating from a common-part concept and thus producible in a large number of pieces.
- a lighting system according to the invention can be further developed such that a circuit board with the at least one light source is provided, which is arranged in particular contacting on a contact surface of a heat sink of the cooling device.
- This contacting arrangement takes place in particular by means of Fasteners, which z. As screws, adhesive surfaces, rivets or other clip-like elements can represent. Also an attachment of the
- a further subject of the present invention is a method for mounting a lighting system, in particular according to the present invention, comprising the following steps:
- FIG. 1 shows a first embodiment of a lighting system according to the invention
- FIG. 3 shows a further embodiment of a cooling device according to the invention
- 4 shows a further embodiment of a lighting system according to the invention
- FIG. 5 shows a further embodiment of a lighting system according to the invention
- FIG. 7 is a partial view of a lighting system according to the invention.
- FIG. 8 shows a further illustration of the embodiment according to FIG. 7,
- Fig. 9 shows another embodiment of a light system according to the invention.
- FIG. 10 shows a further embodiment of a lighting system according to the invention.
- a cooling device 10 which has a contact surface 22 on its underside and a multiplicity of rib-like cooling elements 24 on its upper side.
- the cooling elements 24 and the contact surface 22 are all components of a single heat sink 20, which is preferably made of metal, in particular aluminum or copper, or of plastic.
- a mechanical member on both sides of the heat sink 20, as shown in Figure 1 on the lower left side well, is a mechanical member.
- the mechanical interface 26 is formed here as a rib 28 and has on its top and on its underside each one
- FIG. 1 has a possibility of an optical component 50 on the left side.
- the optical body 60 is two
- an optically active surface 62 facing away from the viewer is directed away.
- the counter interface 66 can be seen in a roof-like structure of the optic body 60 on the inside. This mating interface 66 is formed here as a groove 68, and has on the top and the bottom corresponding Counter stop surfaces 66a on. With a thick arrow and the reference M, the mounting direction of the cooling device 10 in the optical component 50 is shown.
- a board 70 is provided, which has downwardly facing and therefore unrecognizable light sources 1 0. It is inserted together with the cooling device 10 in the mating interface 66. The insertion takes place in the direction of the mounting direction M. In this way, a fixing arranging takes place, in particular a fixing of the cooling device 10 relative to the board 70 and in particular relative to the optical component 50.
- FIGS. 4, 9 and 10 each show a lighting system 100, in which the cooling device 10 is mounted on the optical component 50. It can be seen in all three cases, the cooling elements 24 on top of the cooling device 10. In addition, you can see optically active surfaces 62 of the heat sink 60, which in different ways and thus with different influencing scenarios for the
- emitting light can be equipped.
- Figures 2 and 3 show two different embodiments of a
- Cooling devices 10 can be selected depending on the number and power of the light sources 110 on the board 70. In Figure 2, longitudinal ribs are arranged, while in Figure 3 pin-like extensions are used. In all cases, in addition to the heat dissipation performance and a visual change of the cooling device 10 is possible, so that design considerations can also be perceived.
- FIGS. 5 and 6 show a further embodiment of a light system 100 according to the invention. While the remaining figures show an indirect influence on the light, a direct influence of the light of the light sources 110 in the optical body 60 is provided here.
- the optic body 60 is designed as a light-conducting component and has an optically active surface 62 as a decoupling surface Pillow look on.
- the light sources 110 are again arranged on a circuit board 70 which is in contact with a contact surface 22 of the cooling device 10 in areas.
- the optical component 50 has counter-intersections 66, which are hook-shaped extensions. These are pushed over corresponding flat sections as mechanical interfaces 26 of the heat sink 20, so that an assembled situation arises, as shown in Figures 5 and 6.
- FIGS 7 and 8 show partial views in which the board 70 is clearly visible.
- two light sources 110 in the form of LEDs are mounted here, which are in surface contact with the heat sink 20 of the cooling device 10 at the top.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102012107432.1A DE102012107432A1 (de) | 2012-08-14 | 2012-08-14 | Lichtsystem mit einer Kühlvorrichtung und einem optischen Körper |
PCT/EP2013/066975 WO2014027019A1 (de) | 2012-08-14 | 2013-08-14 | Lichtsystem mit einer kühlvorrichtung und einem optischen körper |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2885573A1 true EP2885573A1 (de) | 2015-06-24 |
EP2885573B1 EP2885573B1 (de) | 2020-04-29 |
Family
ID=49083647
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13753832.8A Active EP2885573B1 (de) | 2012-08-14 | 2013-08-14 | Lichtsystem mit einer kühlvorrichtung und einem optischen bauteil |
Country Status (5)
Country | Link |
---|---|
US (1) | US9732954B2 (de) |
EP (1) | EP2885573B1 (de) |
CN (1) | CN104662360B (de) |
DE (1) | DE102012107432A1 (de) |
WO (1) | WO2014027019A1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3032023B1 (fr) | 2015-01-22 | 2017-02-10 | Valeo Vision | Module lumineux pour vehicule automobile |
DE102017104841A1 (de) | 2017-03-08 | 2018-09-13 | HELLA GmbH & Co. KGaA | Beleuchtungsvorrichtung für Fahrzeuge sowie Montageverfahren |
DE102019134404A1 (de) * | 2019-12-13 | 2021-06-17 | Marelli Automotive Lighting Reutlingen (Germany) GmbH | Stiftkühlkörper zum Abführen von Wärme von Halbleiter-Lichtquellen und Kraftfahrzeugbeleuchtungseinrichtung mit einem solchen Kühlkörper |
FR3141232B1 (fr) * | 2022-10-19 | 2024-09-06 | Psa Automobiles Sa | Bloc optique, pour véhicule, équipé d’un radiateur thermique |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE602004028099D1 (de) * | 2003-02-07 | 2010-08-26 | Panasonic Corp | Beleuchtungseinrichtung, einen sockel verwendend, um ein flaches led-modul auf einen kühlkörper zu montieren |
US7267461B2 (en) * | 2004-01-28 | 2007-09-11 | Tir Systems, Ltd. | Directly viewable luminaire |
DE102004052348B4 (de) * | 2004-10-28 | 2009-08-06 | Sidler Gmbh & Co. Kg | Kraftfahrzeugleuchte |
TWI280332B (en) * | 2005-10-31 | 2007-05-01 | Guei-Fang Chen | LED lighting device |
JP4926771B2 (ja) * | 2007-03-15 | 2012-05-09 | 株式会社小糸製作所 | 車両用灯具ユニット |
CN102089577A (zh) * | 2008-07-11 | 2011-06-08 | 皇家飞利浦电子股份有限公司 | 光输出器件和装配方法 |
DE102008033416A1 (de) * | 2008-07-16 | 2010-01-21 | Osram Gesellschaft mit beschränkter Haftung | Halterungsrahmen |
JP2010238604A (ja) * | 2009-03-31 | 2010-10-21 | Koito Mfg Co Ltd | 発光素子モジュール化部材および灯具ユニット |
KR101087744B1 (ko) * | 2009-10-01 | 2011-11-30 | 에스엘 주식회사 | 차량용 램프 |
JP4703761B2 (ja) * | 2009-10-06 | 2011-06-15 | シーシーエス株式会社 | 光照射装置 |
DE102009047493A1 (de) * | 2009-12-04 | 2011-06-09 | Osram Gesellschaft mit beschränkter Haftung | Leuchtvorrichtung und Aufsatzelement zur Befestigung an der Leuchtvorrichtung |
JP5471755B2 (ja) | 2010-04-12 | 2014-04-16 | 市光工業株式会社 | 車両用前照灯 |
JP2012064516A (ja) | 2010-09-17 | 2012-03-29 | Faltec Co Ltd | 車両用前照灯 |
AT510454B1 (de) * | 2010-10-14 | 2013-04-15 | Zizala Lichtsysteme Gmbh | Led-fahrzeugscheinwerfer |
DE102011003497B4 (de) | 2011-02-02 | 2012-12-27 | Automotive Lighting Reutlingen Gmbh | Modular aufgebautes Projektionslichtmodul eines Kraftfahrzeugscheinwerfers |
DE202011052004U1 (de) * | 2011-11-17 | 2012-03-14 | Just Auto Lighting Technology Co., Ltd. | Mehrzweck-Leuchtdiodenlampe für Fahrzeuge |
CN102519002B (zh) * | 2011-12-21 | 2015-02-04 | 江阴长江电器有限公司 | 工程车用led工作灯 |
-
2012
- 2012-08-14 DE DE102012107432.1A patent/DE102012107432A1/de not_active Withdrawn
-
2013
- 2013-08-14 US US14/421,674 patent/US9732954B2/en active Active
- 2013-08-14 EP EP13753832.8A patent/EP2885573B1/de active Active
- 2013-08-14 CN CN201380049530.9A patent/CN104662360B/zh active Active
- 2013-08-14 WO PCT/EP2013/066975 patent/WO2014027019A1/de active Application Filing
Also Published As
Publication number | Publication date |
---|---|
DE102012107432A1 (de) | 2014-05-15 |
EP2885573B1 (de) | 2020-04-29 |
US9732954B2 (en) | 2017-08-15 |
CN104662360B (zh) | 2018-06-08 |
US20150198325A1 (en) | 2015-07-16 |
CN104662360A (zh) | 2015-05-27 |
WO2014027019A1 (de) | 2014-02-20 |
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DE102012216578A1 (de) | Beleuchtungseinrichtung |
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