DE102004001124B3 - Light e.g. warning light, for vehicle e.g. aircraft, has light emitting diodes pressed by pressing unit towards cooling unit while maintaining relative movement taking place across pressing direction - Google Patents

Light e.g. warning light, for vehicle e.g. aircraft, has light emitting diodes pressed by pressing unit towards cooling unit while maintaining relative movement taking place across pressing direction

Info

Publication number
DE102004001124B3
DE102004001124B3 DE102004001124A DE102004001124A DE102004001124B3 DE 102004001124 B3 DE102004001124 B3 DE 102004001124B3 DE 102004001124 A DE102004001124 A DE 102004001124A DE 102004001124 A DE102004001124 A DE 102004001124A DE 102004001124 B3 DE102004001124 B3 DE 102004001124B3
Authority
DE
Germany
Prior art keywords
light
heat sink
emitting diode
housing
characterized
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.)
Expired - Fee Related
Application number
DE102004001124A
Other languages
German (de)
Inventor
Ulrich Scheithauer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Goodrich Lighting Systems GmbH
Original Assignee
Goodrich Lighting Systems GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Goodrich Lighting Systems GmbH filed Critical Goodrich Lighting Systems GmbH
Priority to DE102004001124A priority Critical patent/DE102004001124B3/en
Application granted granted Critical
Publication of DE102004001124B3 publication Critical patent/DE102004001124B3/en
Application status is Expired - Fee Related legal-status Critical
Anticipated expiration legal-status Critical

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00Fastening of light sources or lamp holders
    • F21V19/001Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
    • F21V19/003Fastening of light source holders, e.g. of circuit boards or substrates holding light sources
    • F21V19/005Fastening of light source holders, e.g. of circuit boards or substrates holding light sources by permanent fixing means, e.g. gluing, riveting or embedding in a potting compound
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60QARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00Arrangements or adaptations of optical signalling or lighting devices
    • B60Q1/26Arrangements or adaptations of optical signalling or lighting devices the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/2611Indicating devices mounted on the roof of the vehicle
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64DEQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLYING SUITS; PARACHUTES; ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D47/00Equipment not otherwise provided for
    • B64D47/02Arrangements or adaptations of signal or lighting devices
    • B64D47/06Arrangements or adaptations of signal or lighting devices for indicating aircraft presence
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S45/00Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
    • F21S45/40Cooling of lighting devices
    • F21S45/47Passive cooling, e.g. using fins, thermal conductive elements or openings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50Cooling arrangements
    • F21V29/70Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64DEQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLYING SUITS; PARACHUTES; ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D2203/00Aircraft or airfield lights using LEDs
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21WINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2111/00Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00
    • F21W2111/06Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00 for aircraft runways or the like
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING 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
    • F21Y2107/00Light sources with three-dimensionally disposed light-generating elements
    • F21Y2107/30Light sources with three-dimensionally disposed light-generating elements on the outer surface of cylindrical surfaces, e.g. rod-shaped supports having a circular or a polygonal cross section
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING 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
    • F21Y2115/00Light-generating elements of semiconductor light sources
    • F21Y2115/10Light-emitting diodes [LED]

Abstract

The light has a light emitting diode pressed by a pressing unit (38) towards a cooling body (14) while maintaining a relative movement taking place across a pressing direction, where the movement is caused by varying coefficients of thermal expansion. The unit (38) is designed as clamping reels (40) that lie on outside of a housing (22) of the diode. The reels have a recess aligned with a light emitting area (28) of the housing.

Description

  • The The invention relates to a light for a vehicle and in particular a warning light, as for example attached to the outside of aircraft as anti-collision light is.
  • Because of their ease of maintenance and long life enjoy Light emitting diodes of increasing acceptance in vehicle construction and there in particular in the aircraft industry. Their use in flash lamps, for example as Anti-collision lights on aircraft, makes an effective dissipation thermal Power loss required. For this purpose, it is beneficial when the LEDs are arranged on a heat sink, with the they are thermally coupled closely. The thermal coupling of the LEDs with a heat sink over, for example Thermal Conductivity pastes However, glues are with respect to sufficient mechanical fixation on the heat sink limits set, which in turn limit the use of light-emitting diodes.
  • Out US 2002/0149944 A1 is a luminaire for attachment to the outside of a Aircraft described. This lamp has a heat sink, on which a ceramic substrate is applied, which is equipped with LEDs.
  • US 2002/0122309 A1 describes a rotating light, for example as Warning light at airports or tall buildings can be found. The all-round light is provided with several LEDs and has optical elements through which the light of the LEDs passes.
  • Out DE 199 26 561 A1 a radiator is known, which finds particular application as a reading light in cabins of vehicles. This radiator is provided with a substrate on which a plurality of wired LEDs are arranged.
  • US 2003/0156416 A1 describes a light source with a reflector, the one equipped with LEDs Board has on a heat sink.
  • In WO 00/55925 A1 describes a light-emitting diode, which by means of a thermally conductive adhesive is mounted on a substrate.
  • A The object of the invention is to provide a luminaire with at least one To provide a light emitting diode whose thermal coupling with a heat sink improved is while ensuring their mechanically sufficient fixation.
  • to solution This object is achieved with the invention, a lamp, in particular Warning light, for one Vehicle, such as an aircraft, proposed, wherein the luminaire is provided with the features of claim 1. The Features of embodiments of the invention are the subject of the dependent claims.
  • To the invention, the at least one light emitting diode by means of a pressing element pressed mechanically against the heat sink, and although in a determined by the action of the pressing force Andrückrichtung. The advantage of this mechanical pressing of the LED against the heat sink is made in that, despite the Andrückwirkung furthermore, for example, by different thermal Expansion-related relative movement of the heat sink and LED across the pressing direction given is. Just in this is proposed according to the invention solution for example a sole bonding of the housing of the light emitting diode with the Heat sink with Help a thermally conductive adhesive advantageous.
  • The pressing element is preferably elastic, which by, an appropriate choice of material and / or realized a corresponding structural design is. The pressing element is located on the housing the LED on. The housing faces next to connecting elements for the electrical contact also a light exit area, off which emits the radiation generated by the light emitting diode. The pressing element now attacks outside of Light emission area on the housing to the light output the LED does not adversely affect. Depending on the design and mechanical contacting of the pressing element can this in areas, in which on the pressure element of the radiation generated by the LED impinges, formed reflective be. The dissipation of heat loss from the light emitting diode is further improved when the pressure element made of a thermally conductive and / or heat radiating Material such as metal (if necessary black coated) consists.
  • In lights in which the light is emitted within a certain azimuth angle range, as is the case for example in anti-collision lights, which emit light, inter alia over 360 ° with respect to a horizontal plane, the heat sink is preferably a rotationally symmetrical body formed on the peripheral surface of a plurality of light-emitting diodes are arranged. The light exit areas of the housing of these LEDs are facing away from the peripheral surface of the heat sink and are thus located on that side of the housing against which the pressing force of the pressing or acting. In such a construction of a luminaire, it is advantageous if the pressing element is designed as a clamping element for all light-emitting diodes, which abuts against the outer surface of the housing of the at least one light-emitting diode facing away from the heat sink, to be precise outside the light exit region of the housing arranged on this outer surface. Thus, it is possible, for example, a common clamping element in the form of a spring formed as a wire, a flat belt or the like. form a narrow element, which extends laterally of the light exit areas of all the housing of the LEDs over their respective outer surfaces and rests against these. On both sides of the light exit areas of the housing then expediently two such clamping elements are provided. Constructively simpler and in particular easy to assemble it is, however, that the clamping element is designed according to the invention as a clamping band which extends almost over the entire width of the light exit areas having outer surfaces of the housing of the LEDs and preferably having aligned with the light exit areas of the housing recesses.
  • The inventive training of the pressing element in the form of a clamping element has the advantage that the light propagation direction the LEDs by the pressure element not impaired is. The opposite ends of the clamping element can for example, attached to the heat sink be so that the tensioning element outside its two ends between itself and the heat sink the includes individual light-emitting diodes. Even more useful though it is when the two ends of the clamping element or clamping band directly or indirectly and preferably detachably connectable with each other are connected and the tensioning element in this way over his whole length, so also in the area of its two connected ends, between itself and the heatsink, the LEDs includes. In this way, a heat sink can be realized, the over 360 ° light radiating LEDs carries and against the housing the LEDs pressed are held. The heat sink itself furthermore need not have any fastening means for the tensioning element, which simplifies its construction in addition to the advantage described above.
  • to further increase the heat dissipation efficiency It is advantageous if between the heat sink and the housing a Wärmeleitmaterialschicht arranged is, the shear forces between the heat sink and the housing the LED allows. In that regard, the Wärmeleitmaterialschicht So deformable, as for example in thermal paste, elastic or plastic thermal conductive adhesives or other soft ones thermally conductive materials is the case. Preferably, permanently elastic thermal conductive pastes in thinnest layers used.
  • The electrical contacting of the at least one light emitting diode takes place preferably via a passing below the LED extending printed circuit board, which is arranged between the light emitting diode and the heat sink. Conveniently, this is an at least partially flexible Printed circuit board. By the pressing element against the case the LED presses, presses it indirectly the flexible circuit board against the heat sink, so that a good thermal contact between the housing and the heat sink is still given. The printed circuit board can be designed as a rigid-flex board, wherein the light emitting diode in a flexible and thus thin area the printed circuit board is arranged. Preferably, the printed circuit board overall flexible design, so has no rigid areas on. Such printed circuit boards are then in the manner of a Bandes placed around a Kühlkör by to become the carrier and as a thermal laxative for the light-emitting diode or light emitting diodes acts.
  • In spite of Use of a (at least partially flexible) printed circuit board for electrical contacting of the LED needs the However, not necessarily between the housing of the board LED and the heat sink too extend. Thus, the board in the area of the housing a Have recess, whereby the housing has direct contact with the heat sink. Either this has to the thickness of the board raised abutment surfaces or the bottom of the case the LED aligns with the underside of the board. Between the housing the LED and the heat sink can a Wärmeleitmaterialschicht be arranged.
  • In order to the heat transport between the case the LED and the heat sink as possible is effective, is a Flächenanpressung, i. a plane Contact beneficial. The opposite surfaces of Heatsink and light-emitting diode housing should so correspond to each other. Since it is manufacturing technology of advantage is, housing for light-emitting diodes with flat bearing surfaces to manufacture, it is appropriate if the heat sink at his peripheral surface sections of contact surface areas (Facets). Within these plan investment areas each one or more light-emitting diode housings are arranged.
  • The The invention will be explained in more detail with reference to the drawing. in the single show:
  • 1 in side view an anti-collisi on lamp with several superimposed and extending over 360 ° rows of juxtaposed LEDs,
  • 2 a section along the line II-II of 1 and
  • 3 a plan view of the heat sink with these surrounding LEDs in the direction of arrow III of 1 ,
  • 1 shows a side view of a trained in this embodiment as a warning light or anti-collision light fixture 10 that have a basic body 12 with a substantially rotationally symmetrical heat sink disposed thereon 14 and a dome-like translucent light cover 16 , On the outside 18 of the heat sink 14 There are a variety of LEDs 20 which are arranged side by side in horizontal rows in this embodiment, wherein a plurality of such light-emitting diode rows are arranged one above the other.
  • How best by the 2 and 3 can be seen, each LED has a housing 22 on, from the two connecting elements 24 protrude. The housing 22 is further provided with a spherical optical element 26 provided, the outside of the light exit area 28 of the housing 22 Are defined. The housing 22 has one of the outside 18 of the heat sink 14 facing underside 30 on and one of these opposite outside 32 ,
  • The electrical connection elements 24 are with (not shown) electrical traces of a flexible printed circuit board 34 connected to the outside of the heat sink 14 is laid around. This flexible circuit board 34 is over a Wärmeleitmaterialschicht 36 for example in the form of a thermal paste or an elastic or plastic heat-conducting adhesive with the heat sink 14 thermally coupled.
  • This thermal coupling dissipates heat lost by the light emitting diodes 20 generated during its operation, to the heat sink 14 dissipated. As it turns out, the simple (touch) contact between the housings 22 the light-emitting diodes 20 and the heat sink 14 optionally with the interposition of the Wärmeleitmaterialschicht 36 just in the currently available high-power diodes with a power output of a few watts is not sufficient.
  • Therefore, the light emitting diodes 20 in the light described here and shown in the drawing 10 by means of resilient pressure elements 38 mechanically against the heat sink 14 pressed. In this embodiment, the pressing elements are as tension bands 40 formed on the outsides 32 the light-emitting diode housing 22 abutment and circumferentially formed. The tension bands 40 For example, have spring steel and consist of individual concave from the heat sink 14 away bent sections, the number of which equals the number of light emitting diode housings 22 per row. The ends of each strap 40 are directly or indirectly connected. Each strap 40 surrounds a horizontal row of light emitting diodes 20 from the outside and pushes the light-emitting diode housing 22 against plane contact surface areas 42 the outside 18 of the heat sink 14 , Each strap 40 points in its sections 41 one recess each 44 on that with the light exit areas 28 the light-emitting diode housing 22 aligned. The tension bands 40 are elastic, which, as described above and shown in the drawing, can be realized by a corresponding structural design of the bands or by their material. The structural design can also be on the (not shown) closure of the tension bands 40 Respectively. The tension bands 40 serve both directly and indirectly the heat dissipation. The indirect heat dissipation effect of the tension bands 40 is due to the fact that the straps 40 the housings 22 against the heat sink 14 Press and thus the thermal contact of the housing 22 to the heat sink 14 improve. On the other hand, the direct cooling effect of the tension bands extends 40 insist that these are directly attached to the enclosures 22 the light-emitting diodes 20 abut and thus heat from the housings 22 dissipate into the environment.

Claims (11)

  1. Luminaire, in particular warning lamp, for a vehicle, such as an aircraft, having - at least one light-emitting diode ( 20 ), which is a housing ( 22 ) with arranged on this connection elements ( 24 ), and - a heat sink ( 14 ), with which the housing ( 22 ) of the at least one light-emitting diode ( 20 ) is in heat-conducting contact, - wherein the at least one light-emitting diode ( 20 ) by means of a pressure element ( 38 ) against the heat sink ( 14 ) is pressed, while maintaining a conditional by different thermal expansion relative movement transversely to the pressing direction, characterized in that - the pressure element ( 38 ) as a tensioning element ( 40 ) is formed, which at the heat sink ( 14 ) facing away from outside ( 32 ) of the housing ( 22 ) of the at least one light-emitting diode ( 20 ), - that the tensioning element ( 40 ) one with a light exit area ( 28 ) of the housing ( 22 ) of the at least one light-emitting diode ( 20 ) aligned recess ( 44 ), and - that the clamping element ( 40 ) than around the heat sink ( 14 ) is formed around extending clamping band.
  2. Luminaire according to claim 1, characterized in that between the heat sink ( 14 ) and the housing ( 22 ) of the at least one light-emitting diode ( 20 ) a deformable Wärmeleitmaterialschicht ( 36 ) is arranged.
  3. Luminaire according to claim 1 or 2, characterized in that the at least one light-emitting diode ( 20 ) electrically to an at least partially flexible printed circuit board ( 34 ) is contacted and that the clamping element ( 38 ) the housing ( 22 ) of the at least one light-emitting diode ( 20 ) against the printed circuit board ( 34 ) and thus this against the heat sink ( 14 ) presses.
  4. Luminaire according to claim 3, characterized in that the clamping element ( 40 ) at least in those areas within which the housing ( 22 ) of the at least one light-emitting diode ( 20 ) leaking light on the pressure element ( 38 ), reflective is formed.
  5. Luminaire according to one of claims 1 to 4, characterized in that the clamping element ( 38 ) against the heat sink ( 14 ) is supported.
  6. Luminaire according to one of claims 1 to 5, characterized in that the heat sink ( 14 ) an outer surface ( 18 ) having at least one planar contact surface area ( 42 ), against which the housing ( 22 ) of the at least one light-emitting diode ( 20 ) by the clamping element ( 38 ) is held down.
  7. Luminaire according to one of claims 1 to 6, characterized in that a plurality of light emitting diodes ( 20 ) are provided.
  8. Luminaire according to claim 6 or 7, characterized in that at least two light-emitting diodes ( 20 ) against a common planar contact surface area ( 42 ) of the heat sink ( 14 ) are kept pressed.
  9. Luminaire according to claim 6 or 7, characterized in that the heat sink ( 14 ) a plurality of planar abutment surface areas arranged sequentially in the circumferential direction thereof (US Pat. 42 ) and that against each contact surface area ( 4 2 ) each case ( 22 ) at least one light emitting diode ( 20 ) is held down.
  10. Luminaire according to one of claims 1 to 9, characterized in that the clamping element ( 40 ) has opposite ends, which are preferably detachably connectable to each other.
  11. Luminaire according to one of claims 1 to 10, characterized in that the pressure element ( 38 ) has a heat conductive material.
DE102004001124A 2004-01-07 2004-01-07 Light e.g. warning light, for vehicle e.g. aircraft, has light emitting diodes pressed by pressing unit towards cooling unit while maintaining relative movement taking place across pressing direction Expired - Fee Related DE102004001124B3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE102004001124A DE102004001124B3 (en) 2004-01-07 2004-01-07 Light e.g. warning light, for vehicle e.g. aircraft, has light emitting diodes pressed by pressing unit towards cooling unit while maintaining relative movement taking place across pressing direction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102004001124A DE102004001124B3 (en) 2004-01-07 2004-01-07 Light e.g. warning light, for vehicle e.g. aircraft, has light emitting diodes pressed by pressing unit towards cooling unit while maintaining relative movement taking place across pressing direction

Publications (1)

Publication Number Publication Date
DE102004001124B3 true DE102004001124B3 (en) 2005-10-06

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007074082A1 (en) * 2005-12-23 2007-07-05 Klaus Kolb Lantern for emitting a warning signal all the way round
EP1927808A1 (en) * 2006-11-28 2008-06-04 Obelux Oy Low-power aircraft warning light
DE102007023918A1 (en) * 2007-05-23 2008-11-27 Siemens Ag Österreich lighting unit
DE102007029293A1 (en) * 2007-06-19 2009-01-02 Automotive Lighting Reutlingen Gmbh Light module for a semiconductor light source lamp and semiconductor light source lamp
DE102008036487A1 (en) * 2008-08-05 2010-02-11 Osram Opto Semiconductors Gmbh Bulbs and use of a bulb
EP2388516A1 (en) 2010-05-21 2011-11-23 Trilux GmbH & Co. KG Heat sink device, in particular for a light
DE102010033298A1 (en) * 2010-08-04 2012-02-09 Hella Kgaa Hueck & Co. Lighting device for roads
DE102012107860A1 (en) 2012-08-27 2014-02-27 Vossloh-Schwabe Deutschland Gmbh Method for mounting light-emitting device, involves fastening holder and LED provided on heat conducting film to the cooling portion and/or bulb housing using attaching unit
CN105090859A (en) * 2015-09-10 2015-11-25 安徽华夏显示技术股份有限公司 Novel anti-collision lamp light source for helicopter
DE202017106053U1 (en) * 2017-10-05 2019-01-10 Quantec Grund GmbH & Co. KG Obstacle fire to protect an aviation obstacle

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000055925A1 (en) * 1999-03-17 2000-09-21 Koninklijke Philips Electronics N.V. Opto-electronic element
DE19926561A1 (en) * 1999-06-11 2000-12-14 Diehl Stiftung & Co Radiator, in particular reading light in cabins of vehicles
US20020122309A1 (en) * 2001-02-16 2002-09-05 Abdelhafez Mohamed M. Led beacon lamp
US20020149944A1 (en) * 1999-05-21 2002-10-17 Worsdell Anthony William In lighting
US20030156416A1 (en) * 2002-02-21 2003-08-21 Whelen Engineering Company, Inc. Led light assembly

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000055925A1 (en) * 1999-03-17 2000-09-21 Koninklijke Philips Electronics N.V. Opto-electronic element
US20020149944A1 (en) * 1999-05-21 2002-10-17 Worsdell Anthony William In lighting
DE19926561A1 (en) * 1999-06-11 2000-12-14 Diehl Stiftung & Co Radiator, in particular reading light in cabins of vehicles
US20020122309A1 (en) * 2001-02-16 2002-09-05 Abdelhafez Mohamed M. Led beacon lamp
US20030156416A1 (en) * 2002-02-21 2003-08-21 Whelen Engineering Company, Inc. Led light assembly

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007074082A1 (en) * 2005-12-23 2007-07-05 Klaus Kolb Lantern for emitting a warning signal all the way round
EP1927808A1 (en) * 2006-11-28 2008-06-04 Obelux Oy Low-power aircraft warning light
US7794115B2 (en) 2007-05-23 2010-09-14 Siemens Ag Österreich Illumination unit
DE102007023918A1 (en) * 2007-05-23 2008-11-27 Siemens Ag Österreich lighting unit
DE102007029293B4 (en) * 2007-06-19 2010-09-30 Automotive Lighting Reutlingen Gmbh Light module for a semiconductor light source lamp and semiconductor light source lamp
DE102007029293A1 (en) * 2007-06-19 2009-01-02 Automotive Lighting Reutlingen Gmbh Light module for a semiconductor light source lamp and semiconductor light source lamp
DE102008036487A1 (en) * 2008-08-05 2010-02-11 Osram Opto Semiconductors Gmbh Bulbs and use of a bulb
DE102008036487B4 (en) * 2008-08-05 2016-12-15 Osram Opto Semiconductors Gmbh Bulbs and use of a bulb
US8770794B2 (en) 2008-08-05 2014-07-08 Osram Opto Semiconductors Gmbh Lamp and use of a lamp
DE102010031066A1 (en) * 2010-05-21 2011-11-24 Trilux Gmbh & Co. Kg Heat dissipation device, in particular for a lamp
DE102010031066B4 (en) * 2010-05-21 2012-11-08 Trilux Gmbh & Co. Kg Heat dissipation device, in particular for a lamp
EP2388516A1 (en) 2010-05-21 2011-11-23 Trilux GmbH & Co. KG Heat sink device, in particular for a light
DE102010033298A1 (en) * 2010-08-04 2012-02-09 Hella Kgaa Hueck & Co. Lighting device for roads
DE102012107860A1 (en) 2012-08-27 2014-02-27 Vossloh-Schwabe Deutschland Gmbh Method for mounting light-emitting device, involves fastening holder and LED provided on heat conducting film to the cooling portion and/or bulb housing using attaching unit
CN105090859A (en) * 2015-09-10 2015-11-25 安徽华夏显示技术股份有限公司 Novel anti-collision lamp light source for helicopter
DE202017106053U1 (en) * 2017-10-05 2019-01-10 Quantec Grund GmbH & Co. KG Obstacle fire to protect an aviation obstacle

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Legal Events

Date Code Title Description
8100 Publication of the examined application without publication of unexamined application
8327 Change in the person/name/address of the patent owner

Owner name: GOODRICH LIGHTING SYSTEMS GMBH, 59557 LIPPSTADT, D

8364 No opposition during term of opposition
R119 Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee