EP2179217A1 - Lighting apparatus - Google Patents
Lighting apparatusInfo
- Publication number
- EP2179217A1 EP2179217A1 EP08785463A EP08785463A EP2179217A1 EP 2179217 A1 EP2179217 A1 EP 2179217A1 EP 08785463 A EP08785463 A EP 08785463A EP 08785463 A EP08785463 A EP 08785463A EP 2179217 A1 EP2179217 A1 EP 2179217A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lighting device
- housing
- electrically conductive
- reflector
- coating
- 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
- 230000005670 electromagnetic radiation Effects 0.000 claims abstract description 9
- 230000003287 optical effect Effects 0.000 claims description 15
- 239000011248 coating agent Substances 0.000 claims description 13
- 238000000576 coating method Methods 0.000 claims description 13
- 239000000853 adhesive Substances 0.000 claims description 11
- 230000001070 adhesive effect Effects 0.000 claims description 11
- 239000012799 electrically-conductive coating Substances 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 8
- 238000001465 metallisation Methods 0.000 claims description 5
- 239000004033 plastic Substances 0.000 claims description 3
- 238000005286 illumination Methods 0.000 claims description 2
- 238000001816 cooling Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000002041 carbon nanotube Substances 0.000 description 2
- 229910021393 carbon nanotube Inorganic materials 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 101100248200 Arabidopsis thaliana RGGB gene Proteins 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 239000002990 reinforced plastic Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003856 thermoforming Methods 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
- F21V3/00—Globes; Bowls; Cover glasses
- F21V3/04—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings
-
- 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
-
- 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
- F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
- F21S41/25—Projection lenses
- F21S41/275—Lens surfaces, e.g. coatings or surface structures
-
- 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
- F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
- F21S41/37—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors characterised by their material, surface treatment or coatings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
- F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
- F21S43/14—Light emitting diodes [LED]
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/30—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by reflectors
- F21S43/33—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by reflectors characterised by their material, surface treatment or coatings
-
- 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
- F21S45/10—Protection of lighting devices
-
- 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
- F21V15/00—Protecting lighting devices from damage
- F21V15/01—Housings, e.g. material or assembling of housing parts
-
- 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
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/02—Arrangement of electric circuit elements in or on lighting devices the elements being transformers, impedances or power supply units, e.g. a transformer with a rectifier
-
- 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
- F21V25/00—Safety devices structurally associated with lighting devices
-
- 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
- F21V7/22—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
- F21V7/24—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors characterised by the material
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
- H05B45/37—Converter circuits
- H05B45/3725—Switched mode power supply [SMPS]
-
- 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 a lighting device with e- lektromagnetician radiation emitting components, in particular using light emitting diodes (LEDs), and a vehicle lighting.
- LEDs light emitting diodes
- the switched-mode power supply When using a switched-mode power supply to drive an LED, the switched-mode power supply typically emits high-frequency electromagnetic radiation in the range of more than 100 kHz, which can lead to EMC problems with other electronic components. This is a problem, especially in the automotive sector, where a large number of electronic components are gathered in the smallest of spaces.
- switching power supplies are usually operated in an independent, completely shielded housing. This is elaborate and voluminous and heavy.
- the lighting device has an at least partially electrically conductive housing, in the interior of which at least one light source, in particular LED, and at least one electromagnetic radiation emitting circuit component for operating the at least one light source are arranged. Furthermore, the lighting device has an electrically conductive cover for covering at least part of the circuit components, wherein the cover and the housing are electrically connected to each other.
- the cover and the, usually grounded, housing thereby form a Faraday cage, the electromagnetic
- the interior of the Faraday cage forms a shielded receiving space for receiving the circuit components.
- the housing needs to be electrically conductive only insofar as it can form the shielded receiving space.
- the housing may have an open side through which light emitted by the at least one light source is emitted to the outside.
- the light source accommodating housing also for accommodating the radiating components can be dispensed with a separate, complete housing for shielding the radiating components. This results in compact dimensions and weight and cost savings.
- the board on which the radiating components are mounted need not be specially designed. It is the use of a single-sided board with a minimum number of layers possible, which, for example, a cost savings over a use of multi-layer, double-sided boards with ground plate allows, which could possibly also be used e- for shielding.
- the lighting device is particularly well suited for shielding components whose electromagnetic radiation has a frequency of about 100 KHz or more.
- the cover comprises an optical element for the beam guidance of the light emitted by the at least one light source.
- the optical element comprises a reflector.
- the reflector preferably has a metallization, for. B. on a non-conductive basic form.
- the reflector is made of metal, z. B. in the deep drawing process.
- the reflector is preferably supported electrically conductive on the housing, for. B. without further fasteners.
- the reflector is preferably connected to the housing by means of an electrically conductive adhesive.
- the reflector is preferably connected to the housing by means of an electrically conductive mechanical connecting element, for. B. a metal clip.
- the optical element comprises a lens.
- the optical element preferably has a light-transmissive, electrically conductive coating, wherein the coating is particularly preferably electrically connected to the housing.
- the coating is electrically connected to the housing by means of an electrically conductive adhesive connected is.
- any other suitable electrically conductive compound may be used, e.g. B. a solder joint.
- the cover comprises a light-transmitting, non-jet-forming closing element, in particular a cover disk.
- the terminating element has a light-permeable, electrically conductive coating which is electrically connected to the housing, in particular if the coating is electrically connected to the housing by means of an electrically conductive adhesive.
- Preferred is a lighting device in which the housing is made of metal.
- a lighting device may be preferred in which the housing is made of conductive, in particular metallized, plastic.
- a lighting device in which the housing is formed as a heat sink, for. B. by providing cooling fins, but also without cooling fins.
- a lighting device in which the at least one electromagnetic radiation-emitting circuit component is connected to at least one electronic filter element for reducing an electromagnetic radiation of electrical supply lines.
- the at least one LED may be a single LED or comprise multiple LEDs.
- the multiple LEDs can be arranged in groups, so-called LED clusters.
- the LEDs can be monochrome or different colors.
- the LED cluster can have a plurality of differently colored LEDs, preferably suitable for white additive color mixing, for. B. the type RGB, RRGB, RGGB, etc.
- the LEDs can spectrally pure or mixed radiate.
- LEDs that emit IR or UV light Also included are LEDs with wavelength-converting material, eg. B. based on phosphorus, z. B. to convert from blue to yellow light.
- FIG. 1 shows a cross-sectional view in side view of a
- Lighting device in a first embodiment
- FIG. 2 shows a cross-sectional view in side view of a lighting device in a second embodiment
- FIG 3 shows a cross-sectional view in side view of a lighting device in a third embodiment.
- FIG. 1 shows an illumination device 1 with an electrically conductive, about an optical axis O rotationally symmetrical housing 2, the interior 3 has a one-sided opening 4.
- a one-sided populated, non-shielding board 5 is mounted, which is equipped on one side with an LED 6 and components 7 of a switching power supply for driving the LED 6 on its upper side.
- the components 7 are fed by supply lines, not shown, which are routed through the housing 2.
- an electrically conductive reflector 8 is placed, which has a central opening (without reference numerals), through which the LED 6 is guided.
- the reflector 8 By means of the reflector 8, light which is swept onto the latter by the LED 6 is radiated through the opening 4 symmetrically with respect to the optical axis O to the outside.
- the reflector 8 covers the components 7 of the switched-mode power supply and thereby provides, together with the housing 2, a receiving space 9 for these components 7. Furthermore, the reflector 8 and the housing 2 are electrically connected to one another by an electrically conductive adhesive, which adjoins the interface 10 between reflector 8 and housing 2 is located.
- a Faraday cage is formed, which prevents electromagnetic radiation from running out of the receiving space 9 or into it.
- the reflector 8 is made of metal, optionally with protective layers, and is produced by thermoforming.
- the housing is not rotationally symmetrical, but is elongate, in which case the longitudinal axis is perpendicular to the plane of the page in FIG.
- This case is particularly suitable for juxtaposing multiple LEDs, which have a common reflector, z. B. to build an elongated light, z. B. a high-mounted brake light.
- the reflector can have a metallization which is suitably connected to the housing, in particular a large-area metallization, for. B. applied to a plastic base body.
- This metallization can then also be used for light reflection
- Masseanbmdung of the reflector to the housing may possibly already be its mechanical support on the housing, ie without adhesive bond sufficient.
- the ground connection can be given for example by a mechanical tensioning device made of metal.
- FIG. 2 shows a lighting device 11 which, in contrast to that of FIG. 1, uses a (secondary) optical system instead of a reflector of a projection lens 12, which covers the opening 4 and has a transparent, electrically conductive coating 13.
- the coating 13 is connected by an electrically conductive adhesive 14 to the housing, whereby now the EMC shielding or formation of the receiving space 15 by the housing 2 and the lens 12 and its coating 13 takes place.
- the coating 13 may comprise, for example, InO: Sn, ZnO: Al or carbon nanotubes.
- the electrically conductive coating 13 may be applied to the inside or outside of the lens 12.
- a primary optics 16 for beam shaping of the light emitted by the LED 6 is arranged between the LED 6 and the lens 12.
- the housing need not be formed rotationally symmetrical, but may for example also be elongated, especially when using multiple LEDs.
- FIG 3 shows a lighting device 17, in which now, in contrast to the embodiment of FIG 2 instead of the lens, a translucent lens 18 is present without significant optical effect.
- the cover plate 18 also has a transparent, electrically conductive coating 19, which in this example is connected to the housing by an electrically conductive adhesive 20, as a result of which the EMC shield or formation of the receiving space 21 through the housing 2 and the cover plate 18 or the coating 19 takes place.
- the coating 19 can, for example, InO: Sn, ZnO: include AI or carbon nanotubes.
- the electrically conductive coating 19 may be applied to the inside or outside of the lens 18 without significant optical effect.
- the present invention is not limited to the present embodiments.
- the shape of the interior may be different, z. B. not square in cross-section, but arbitrarily shaped.
- the housing can also be designed as a heat sink and can be z. B. Identify cooling fins.
- the housing can also consist of metallized or metal-reinforced plastic or another suitable electrically conductive material or composite material.
- the optical element is not limited to a reflector or a projection lens, but may comprise any suitable optical elements, e.g. B. collimator lenses or lens arrays.
- LED clusters of a plurality of differently colored LEDs whose colors are mixed together in an additive manner are not limited to LEDs, but may include other suitable light sources that require radiating elements to drive them, e.g. B. laser diodes.
- radiant elements can be accommodated, which are not needed to drive the LEDs, but for other purposes.
- the invention is not limited to an automotive application, but may include any suitable lighting application.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- Power Engineering (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Led Device Packages (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007037822A DE102007037822A1 (en) | 2007-08-10 | 2007-08-10 | lighting device |
PCT/EP2008/006570 WO2009021694A1 (en) | 2007-08-10 | 2008-08-08 | Lighting apparatus |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2179217A1 true EP2179217A1 (en) | 2010-04-28 |
EP2179217B1 EP2179217B1 (en) | 2019-03-13 |
Family
ID=39944323
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08785463.4A Active EP2179217B1 (en) | 2007-08-10 | 2008-08-08 | Lighting apparatus |
Country Status (6)
Country | Link |
---|---|
US (1) | US8602620B2 (en) |
EP (1) | EP2179217B1 (en) |
JP (1) | JP5416102B2 (en) |
CN (1) | CN101688659B (en) |
DE (1) | DE102007037822A1 (en) |
WO (1) | WO2009021694A1 (en) |
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JP5288161B2 (en) * | 2008-02-14 | 2013-09-11 | 東芝ライテック株式会社 | Light emitting module and lighting device |
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CN102762920B (en) * | 2010-02-11 | 2015-04-08 | 帝斯曼知识产权资产管理有限公司 | Led lighting device |
DE202010007032U1 (en) * | 2010-04-09 | 2011-08-09 | Tridonic Jennersdorf Gmbh | LED module for spotlights |
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JP5236837B2 (en) * | 2010-12-16 | 2013-07-17 | パナソニック株式会社 | Illumination light source and illumination device |
CN104041204B (en) * | 2012-02-03 | 2017-09-08 | 飞利浦照明控股有限公司 | Illumination driver and the housing with the inside electro-magnetic screen layer for being configured to be connected directly to circuit ground |
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JP5690764B2 (en) * | 2012-03-06 | 2015-03-25 | 株式会社ホンダアクセス | Lighting device |
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US20130335980A1 (en) * | 2012-06-13 | 2013-12-19 | Panasonic Corporation | Light emitting device and lighting fixture |
US9696012B2 (en) * | 2012-10-04 | 2017-07-04 | Guardian Industries Corp. | Embedded LED assembly with optional beam steering optical element, and associated products, and/or methods |
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JP6441652B2 (en) * | 2014-02-12 | 2018-12-19 | 株式会社小糸製作所 | Vehicle lighting |
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DE202004003793U1 (en) | 2004-03-11 | 2004-05-13 | Hella Kg Hueck & Co. | Light emitting diode (LED) assembly for fitting into cars, comprises cooler for dissipating waste heat and directly supporting LEDs and electronic components |
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JP2006302712A (en) * | 2005-04-21 | 2006-11-02 | Koito Mfg Co Ltd | Vehicle head-lamp |
JP4656997B2 (en) * | 2005-04-21 | 2011-03-23 | 株式会社小糸製作所 | Vehicle lighting |
JP2006302713A (en) * | 2005-04-21 | 2006-11-02 | Koito Mfg Co Ltd | Vehicle head-lamp |
JP4471169B2 (en) * | 2005-04-21 | 2010-06-02 | 株式会社小糸製作所 | Projector type vehicle lamp unit |
JP4703375B2 (en) * | 2005-11-08 | 2011-06-15 | 株式会社小糸製作所 | Interior lighting |
DE102006001981A1 (en) | 2006-01-16 | 2007-08-02 | CFL Licht & Design GbR (vertretungsberechtigte Gesellschafter: Wilfried Böhm | Light strip for e.g. decorative illumination system, has base firmly connected with metal section, such that narrow side of base is arranged on open side of section, where side surfaces and side are laid in section without distance |
JP4500273B2 (en) * | 2006-01-31 | 2010-07-14 | 株式会社小糸製作所 | Vehicle headlamp |
JP4595914B2 (en) * | 2006-10-03 | 2010-12-08 | パナソニック電工株式会社 | LED lamp |
-
2007
- 2007-08-10 DE DE102007037822A patent/DE102007037822A1/en not_active Withdrawn
-
2008
- 2008-08-08 EP EP08785463.4A patent/EP2179217B1/en active Active
- 2008-08-08 WO PCT/EP2008/006570 patent/WO2009021694A1/en active Application Filing
- 2008-08-08 JP JP2010512612A patent/JP5416102B2/en active Active
- 2008-08-08 US US12/672,714 patent/US8602620B2/en active Active
- 2008-08-08 CN CN2008800209753A patent/CN101688659B/en active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2009021694A1 * |
Also Published As
Publication number | Publication date |
---|---|
JP5416102B2 (en) | 2014-02-12 |
DE102007037822A1 (en) | 2009-02-12 |
EP2179217B1 (en) | 2019-03-13 |
WO2009021694A1 (en) | 2009-02-19 |
US8602620B2 (en) | 2013-12-10 |
US20110038172A1 (en) | 2011-02-17 |
CN101688659A (en) | 2010-03-31 |
JP2010531037A (en) | 2010-09-16 |
CN101688659B (en) | 2013-01-23 |
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