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WO2012052313A1 - Module à del et dispositif d'éclairage - Google Patents

Module à del et dispositif d'éclairage Download PDF

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Publication number
WO2012052313A1
WO2012052313A1 PCT/EP2011/067635 EP2011067635W WO2012052313A1 WO 2012052313 A1 WO2012052313 A1 WO 2012052313A1 EP 2011067635 W EP2011067635 W EP 2011067635W WO 2012052313 A1 WO2012052313 A1 WO 2012052313A1
Authority
WO
WIPO (PCT)
Prior art keywords
module according
light
led
scattering
led module
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.)
Ceased
Application number
PCT/EP2011/067635
Other languages
German (de)
English (en)
Inventor
Ralph Bertram
Stefan Lorenz
Simon Schwalenberg
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.)
Osram GmbH
Original Assignee
Osram 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 Osram GmbH filed Critical Osram GmbH
Publication of WO2012052313A1 publication Critical patent/WO2012052313A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0033—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use
    • G02B19/0047—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source
    • G02B19/0061—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source the light source comprising a LED
    • G02B19/0066—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source the light source comprising a LED in the form of an LED array
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0004—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed
    • G02B19/0028—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed refractive and reflective surfaces, e.g. non-imaging catadioptric systems
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10H—INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
    • H10H20/00—Individual inorganic light-emitting semiconductor devices having potential barriers, e.g. light-emitting diodes [LED]
    • H10H20/80—Constructional details
    • H10H20/85—Packages
    • H10H20/855—Optical field-shaping means, e.g. lenses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
    • F21K9/61—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction using light guides
    • 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]
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L25/00—Assemblies consisting of a plurality of semiconductor or other solid state devices
    • H01L25/03—Assemblies consisting of a plurality of semiconductor or other solid state devices all the devices being of a type provided for in a single subclass of subclasses H10B, H10D, H10F, H10H, H10K or H10N, e.g. assemblies of rectifier diodes
    • H01L25/04—Assemblies consisting of a plurality of semiconductor or other solid state devices all the devices being of a type provided for in a single subclass of subclasses H10B, H10D, H10F, H10H, H10K or H10N, e.g. assemblies of rectifier diodes the devices not having separate containers
    • H01L25/075—Assemblies consisting of a plurality of semiconductor or other solid state devices all the devices being of a type provided for in a single subclass of subclasses H10B, H10D, H10F, H10H, H10K or H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H10H20/00
    • H01L25/0753—Assemblies consisting of a plurality of semiconductor or other solid state devices all the devices being of a type provided for in a single subclass of subclasses H10B, H10D, H10F, H10H, H10K or H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H10H20/00 the devices being arranged next to each other
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/0001—Technical content checked by a classifier
    • H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00

Definitions

  • the invention relates to an LED module with at least one semiconductor light source, hereinafter referred to as LED, and an illumination device designed with such an LED module.
  • Such an LED module is marketed for example by OSRAM GmbH under the name PrevaLED®.
  • This LED module has an LED array that is electrically contacted with a circuit board.
  • This arrangement is accommodated in a casing part overall, in the example, a Reflectors ⁇ tor can be applied for determining the light emission.
  • Such LED module can be used with suitable Re ⁇ reflectors, for example, spotlight oronulbe ⁇ illumination ( "downlight").
  • the object of the invention is to provide an LED module and a lighting device designed with such an LED module, which enables the light emission to be influenced with little outlay in terms of apparatus.
  • the LED module according to the invention has at least a half ⁇ conductor light source (LED), wherein in the region of an aperture of a LED array, the radiation of the determining LichtabstrahlSuperis is provided.
  • LED conductor light source
  • This ER it enables to influence the emission of light by entspre ⁇ -reaching interpretation of optical properties. Since the light emitting body is placed on the luminous aperture of the LED array, the Platzbe ⁇ may and the device complexity are minimal.
  • the light-emitting body projects beyond the aperture in the light emission direction, in particular by more than 1/10, preferably by more than 1/5 of the maximum linear extent (for example the diameter) of the aperture. In contrast to a flat, not substantially projecting beyond the aperture cover or lens in particular, the lateral emission of light is Wesent ⁇ Lich easier to accomplish.
  • the light emitting body is designed so that it allows a transmission of the light at least in sections in the radial and / or axial direction.
  • the transmittance can be between 50% to 90%, preferably between 70% to 90%.
  • the geometry of the light-emitting body is designed with respect to the desired light distribution curve.
  • the light-emitting body can be designed essentially as a cylinder, as a cone, as a truncated cone, as a cuboid, as an octahedron or with another polygonal base or as a convex dome (spherical, parabolic, conical, elliptical, hyperbolic, aspheric).
  • the light-emitting body can also be designed with a concave outer circumference (fitted) or with a convex outer circumference (built-in). Mixed forms of the aforementioned geometries are possible.
  • an end ⁇ side emitting surface of the Lichtabstrahl stresses flat form with rounded peripheral edges, crowned, with a forward-in-NEN conical surface (cone, pyramid) and / or with an outwardly facing cone surface (cone, pyramid).
  • the light emitter body tapers conically towards its emission surface.
  • a conical recess is provided on the front side.
  • the light intensity distribution can be particularly well steu ⁇ ren when face or lateral surface portions of the light ⁇ abstrahl stressess are made reflective, diffusely scattering or from ⁇ sorptive, so that the radiation circumferential side and the front side influenced accordingly.
  • the frontal and peripheral scattering, reflection or absorption is designed differently. It may be preferred, the to choose frontal scattering less than the circumferential scattering.
  • the light-emitting body can be designed as a hollow body or solid material. When using a hollow body, it is relatively easy to provide the inner surfaces with a coating or to edit such that the above-described scattering, absorption, reflection or transmission is set.
  • the geometry of the light-emitting body and the treatment of the light-emitting surfaces are chosen such that a predetermined light distribution curve (LVK), for example, sets a Batwing LVK.
  • LVK predetermined light distribution curve
  • the optical losses are minimal if the light emission on the LED side is optically connected to the LED aperture, preferably an adjustment of the Bre ⁇ index index occurs.
  • the length and diameter of the piston form a ratio H / D, which may be in the range of 1 to 5.
  • the diameter is in the range of 10 mm to 60 mm.
  • the circumference of the frontal emitting surface can be used as a first approximation as a diameter.
  • the light emitting body can be made of optically high-quality material, such as plastic, glass, silicone or the like.
  • Fig. 1 components of an LED module according to the invention
  • FIG. 2 shows the LED module according to FIG. 1 in a standing and suspended arrangement
  • FIG. 3 shows a light distribution curve of a ceremoniesnelemen ⁇ tes a Lichtabstrahl stressess
  • FIG. 5 shows an illuminance distribution curve of an LED module with a light emitting body
  • Fig. 8 light distribution curves of an LED module with a front side and circumferentially radiating Lichtab ⁇ beam body
  • FIG. 1 a shows, in a very simplified manner, a very compact LED light source 1, which can be implemented, for example, by an OSRAM PrevaLED® module.
  • a very compact LED light source 1 which can be implemented, for example, by an OSRAM PrevaLED® module.
  • OSRAM PrevaLED® module By combining several such LED light sources, for example, a street lighting or a decorative outdoor lighting or indoor lighting
  • the LED light sources are available with different lumen packages and in different light colors.
  • Such a LED light source 1 has a one or several re LEDs, for example, an LED array 2 having a plurality ⁇ plurality of LEDs 4, which are contacted with the circuit board 6 (not shown) is angesteu ⁇ ert an operating device ,
  • the LED array 2 with the circuit board 6 is accommodated in a housing part 8, which in the illustrated embodiment is designed approximately as a cylindrical disk.
  • a housing part 8 which in the illustrated embodiment is designed approximately as a cylindrical disk.
  • several such LED light sources can be arranged side by side on a support in order to illuminate the surroundings.
  • the LED light source 1 is a LichtabstrahlMech ordered to-10, which is formed zy ⁇ relieving shaped in the illustrated embodiment, the measured length in the axial direction with the reference numeral H and the diam ⁇ ser is marked with the reference D.
  • This LichtabstrahlMech 10 is executed at the dargestell- th in Figure 1 embodiment, as a hollow cylinder with a closed end face ge ⁇ 12th The emission of the emitted light can take place through the end face 12 and / or the lateral surface 14.
  • this Lichtabstrahl analysess 10 are so- ⁇ selected that a predetermined Lichtabstrahlkurve he ⁇ are when the Lichtabstrahlianu 10 (in the embodiment shown in Figure 2 example, an aperture A see Figure 1 ) is placed.
  • the diameter of this luminous aperture is, for example, between 8 mm to 30 mm.
  • the placement of the light-emitting body 10 on the aperture can be done so that when adjusting the refractive index direct coupling of the light without interfering light gap from the LEDs 4 takes place in the Lichtabstrahl endeavor 10.
  • the Lichtabstrahl- body 10 is placed on the housing 8.
  • the light-emitting body 10 can be made of plastic, for example PC, PMMA, COP, CPET, made of glass, for example quartz glass or silicate glass or silicone. In principle, other suitable materials can also be used which make it possible to influence the light emission with minimal optical losses.
  • the Lichtabstrahlenia 10 may also consist of solid material instead of the shown in Figure 1 on one side CLOSED ⁇ Senen hollow cylinder.
  • the inside and outside lying end and lateral surfaces of the light emitting body 10 may be optically smooth out ⁇ leads, so that the refraction of light takes place at the interfaces air-radiating.
  • it is also mög ⁇ Lich, perform statistical scattering with a certain surface roughness or diffusing coating (silicate), the inner and / or outer surfaces of the Lichtabstrahl stressess 10th
  • the incident light from the LEDs forth percentage is formsspal ⁇ th in a specular component S, a diffuse part D and an approximately Gaussian distributed share ⁇ G with the width.
  • D diffuse part
  • ⁇ G are set for different piston ⁇ surfaces.
  • a corresponding splitting tion is also possible for the transmitted or reflected light.
  • the surfaces of the Lichtabstrahl analysess 10 can also be made deterministic light scattering with predetermined surface textures, for example, microlenses, pyramids, linear structures, corrugated structures, truncated cones, said surfaces - as be ⁇ already mentioned above - on the inside and / or negligenceflä ⁇ chen be provided can.
  • the scattering, transmission, absorption and reflection of light determining characteristics of Lichtabstrahl analysess 10 can be changed chen moreover by a suitable loading ⁇ coating, for example a phosphor coating on the inner and outer circumferential surfaces and the Stirnflä-, said coating may be completely or partially ,
  • a coating can also be material, such as phosphors (fluorophores), or scattering particles in the material for manufacturing the light abstrahl stressess 10 are introduced, so that this Ma ⁇ TERIAL is uniformly distributed in the Lichtabstrahltechnik 10.
  • a partial application of the material is not or only with great effort to produce.
  • a coating inside, outside, partial can also be provided.
  • FIG. 2 a shows a variant of the LED module 16 composed of the LED light source 1 and the light emitting body 10, in which the mounting takes place standing, but according to FIG. 2 b, a suspended mounting is also possible.
  • the illustrated in Figure 2a LED module 16 is preferential ⁇ example hanging or illuminating mounted in the horizontal direction so that the light is radiated downwards.
  • the radiating body 10 is designed so that no stirnsei ⁇ term radiation takes place but essentially a radial radiation over the lateral surfaces 14.
  • suitable choice of doctorsnbe ⁇ creation of the radiation in the end portion of the light emitting body 10th ie prevented or influenced in the area adjacent to the end face 12.
  • the ratio H / D is in the range of 1 to 5, preferably in the range of 1 to 3.
  • the diameter will be in the range from 10 mm to 60 mm, preferably in the range from 20 mm to 25 mm - in general, therefore, much larger than the diameter of the individual LEDs 4.
  • the peripheral edges and corners may be present in over ⁇ transition region can be rounded from the front surface to coat the cylinder.
  • the dispersion of the shell and end surface portions of the light emitting body can be adjusted by appropriately designing the surface roughness or surface texture or surface coating.
  • the light distribution curve of the entire LED module 16 is then composed of the light distribution curves of the individual surface elements.
  • a comparatively narrow Ver ⁇ division should be a ⁇ between 5 ° and 15 °.
  • the degree of scattering ( ⁇ ) the Lichtver ⁇ distribution curve can be set at a fixed geometry of the Lichtabstrahl stressess 10th
  • the scattering at the end face 12 can be adjusted differently to the scattering along the lateral surfaces 14.
  • the scattering along the end face 12 is less than that along the lateral surfaces 14.
  • the production of the light-emitting body 10 is particularly effective when the roughening to produce the surface roughness in a hollow body takes place along the inner peripheral surfaces.
  • the transmission ratio is set to greater than 50%, preferably greater than 75%, of which the diffuse component D is less than 50%, the Gaussian component G greater than 50% a ⁇ between 5 ° to 30 °, in particular 5 ° to 10 ° be ⁇ contributes.
  • the transmission is in the range from 25% to 75%, in particular in the range from 30% to 60%, in which case the diffuse fraction D is greater than 50%, preferably more than 75%.
  • the Gaussian proportion G is less than 50% with a ⁇ of 5 ° to 30 °, in particular of 5 ° to 10 °.
  • the diffused portion D is more than 50%, preferably more than 75%.
  • the Gaussian proportion G should then be less than 50% at a ⁇ of 5 ° to 30 °, in particular from 5 ° to 10 °. In this way, a Batwing light intensity distribution can be adjusted, as shown in solid lines in Figure 4.
  • the Bauteilgeomet- RIE, and the previously described parameters, for example the transmission and reflectance of light radiating ⁇ body 10 define together with the radiation of the light source, the shape of the radiation pattern. In this case, by selecting the light emitting body 10, the emission characteristic can be changed without replacing the actual light source.
  • Figure 5 shows at a bat wing distribution (solid line in Figure 4) adjusting BL LEVEL ⁇ tung intensity distribution on a wall which is arranged for example at a distance of 5 m. It can be seen that the suitable design of the light-emitting body 10 allows very uniform illumination to be achieved over a wide range.
  • FIG. 6 shows a variant in which the radiation through the end face 12 and the lateral surfaces 14 is designed differently.
  • the light distribution curve which is established on the face side is formed in a plane of symmetry approximately like a Lambertian radiator.
  • the light distribution curve of the lateral surface arises in the same plane of symmetry, in principle, eight shaped Dop ⁇ pelkeule the light distribution curve of the whole LED module 16 then adds up as in Figure 6 shown to the right in the plane of symmetry of the individual light ⁇ distribution curves of the surface portions (end face, Man ⁇ tel configuration).
  • the light emitting body 10 is cylindrical in solid material or as a hollow body.
  • the configuration of the surface by patterning, assembly can be rough, a ⁇ are provided coating, choice of material, etc. to affect the transmission, reflection, absorption components.
  • Figure 7 shows an embodiment in which the light emitting body 10 is designed conical, wherein the circular base surface is placed on the aperture of the LED light source 1.
  • Figure 8 shows a variant of a Lichtabstrahl stressess 10, which is designed truncated cone-shaped, then the end face ge ⁇ Gurss the above criteria can be designed so 12 that the end face and radially, a different radiation pattern is set.
  • This reflective insert 18 reflects the light emitted from the LEDs 4 in the light toward the lateral surface 14, which in turn flekoms- in the terme ⁇ manner described with regard to the transmission, Re and absorption components is optimized, so that a radial radiation with the desired Lichtvertei ⁇ ment curve takes place.
  • Figure 10 shows a variant of the embodiment ge ⁇ Gurss Figure 9, wherein instead of a cone-shaped insert 18, the end face 12 with a reflective coating is provided 20th By this coating 20, a front-side outlet of the emitted light is prevented, so that can be adjusted in a concernedsbei ⁇ game according to Figure 9 corresponding light distribution curve.
  • the coating 20 can also be designed so that they absorbed the light frontally directed off, in which case, however, optical losses associated ⁇ .
  • a coating or an insert also caps or other optical elements can be placed on the light emitting body 10.
  • a section-wise coating 22 can be applied to the front side or shell side, which by fine adjustment of the transmission, reflection and / or absorption, fine-tunes the radiation behavior allows.
  • This coating 22 may be semipermeable or may also be replaced or supplemented by a surface structuring, so that the proportion of light radiated from the end side can be adjusted continuously.
  • another frontal geometry can also be used. In this case, for example, it is possible, according to FIG. 12, to set up a hemisphere 24 on the front side, by means of which a comparatively broad light distribution curve is set.
  • Figure 13 shows a variant in which the front side ⁇ a conical or pyramidal recess 26 is provided, which extends into the light emitting body 10 inside.
  • a conical section can also be arranged with its tip pointing outwards on the front side in order to influence the light distribution curve in the desired manner.
  • Figure 14 shows an embodiment in which a Man ⁇ tel (or end) surface portion 28 by surface treatment, coating, material storage or by an insert reflective or absorbent, while the other mantle (or front) zanab ⁇ section diffuse is diffused or clear, so that the light is emitted only in one direction.
  • the ⁇ like variants can be used, for example, in a street lighting that should omit certain areas, such as house walls or windows.
  • the LED module 16 by adapting the radiation characteristic of the light emitting body 10, the light direction to the side (radial) or forward (frontally) favor.
  • commercially available LED light sources with a half-value angle Zvi ⁇ rule 135 ° and 150 ° can be used, for example.
  • a street lighting with egg ⁇ ner variety of such LED modules 16 may be performed, which are held on a support housing of the street lighting.
  • Such an embodiment is characterized by an extremely simple structure with optimum light emission characteristic.
  • the LED module has one or more LEDs in the area an aperture of the LED array, a radiation mitbechiedder light emitting body is placed.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)

Abstract

L'invention concerne un module à DEL ainsi qu'un dispositif d'éclairage équipé d'un tel module à DEL. Le module à DEL comporte une ou plusieurs DEL sur laquelle ou lesquelles un corps d'émission lumineuse influant sur l'émission lumineuse est disposé dans la zone d'une ouverture de l'ensemble DEL.
PCT/EP2011/067635 2010-10-19 2011-10-10 Module à del et dispositif d'éclairage Ceased WO2012052313A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010042611.3 2010-10-19
DE102010042611A DE102010042611A1 (de) 2010-10-19 2010-10-19 LED-Modul und Beleuchtungseinrichtung

Publications (1)

Publication Number Publication Date
WO2012052313A1 true WO2012052313A1 (fr) 2012-04-26

Family

ID=44801002

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2011/067635 Ceased WO2012052313A1 (fr) 2010-10-19 2011-10-10 Module à del et dispositif d'éclairage

Country Status (2)

Country Link
DE (1) DE102010042611A1 (fr)
WO (1) WO2012052313A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104197250A (zh) * 2014-09-22 2014-12-10 苏州承源光电科技有限公司 立式草坪灯

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016202563A1 (de) * 2016-02-19 2017-08-24 Osram Gmbh Retrofit-lampe und fahrzeugscheinwerfer mit retrofit-lampe
DE102016104602A1 (de) 2016-03-14 2017-09-14 Osram Opto Semiconductors Gmbh Halbleiterlichtquelle
DE102016204181A1 (de) * 2016-03-15 2017-09-21 Osram Gmbh Retrofit-Lampe und Fahrzeugscheinwerfer mit Retrofit-Lampe

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WO2004088200A2 (fr) * 2003-03-31 2004-10-14 Osram Opto Semiconductors Gmbh Phare et element phare
DE102004008823A1 (de) 2004-02-20 2005-09-08 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH LED-Modul und LED-Anzeige
DE102004056252A1 (de) * 2004-10-29 2006-05-04 Osram Opto Semiconductors Gmbh Beleuchtungseinrichtung, Kfz-Scheinwerfer und Verfahren zur Herstellung einer Beleuchtungseinrichtung
EP1998102A1 (fr) * 2007-05-31 2008-12-03 OSRAM Opto Semiconductors GmbH Source lumineuse
US20090290345A1 (en) 2008-05-20 2009-11-26 Apl Ip Holding Llc Enclosures for led circuit boards
US20090296387A1 (en) * 2008-05-27 2009-12-03 Sea Gull Lighting Products, Llc Led retrofit light engine

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US5592578A (en) * 1995-11-01 1997-01-07 Hewlett-Packard Company Peripheral optical element for redirecting light from an LED
DE20307092U1 (de) * 2003-05-08 2004-09-09 S+P Werbetechnik Gmbh & Co. Kg Lichtsäule
TWI317829B (en) * 2004-12-15 2009-12-01 Epistar Corp Led illumination device and application thereof
DE102008026626A1 (de) * 2008-06-03 2009-12-17 Siemens Aktiengesellschaft Beleuchtungssystem

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Publication number Priority date Publication date Assignee Title
WO2004088200A2 (fr) * 2003-03-31 2004-10-14 Osram Opto Semiconductors Gmbh Phare et element phare
DE102004008823A1 (de) 2004-02-20 2005-09-08 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH LED-Modul und LED-Anzeige
DE102004056252A1 (de) * 2004-10-29 2006-05-04 Osram Opto Semiconductors Gmbh Beleuchtungseinrichtung, Kfz-Scheinwerfer und Verfahren zur Herstellung einer Beleuchtungseinrichtung
EP1998102A1 (fr) * 2007-05-31 2008-12-03 OSRAM Opto Semiconductors GmbH Source lumineuse
US20090290345A1 (en) 2008-05-20 2009-11-26 Apl Ip Holding Llc Enclosures for led circuit boards
US20090296387A1 (en) * 2008-05-27 2009-12-03 Sea Gull Lighting Products, Llc Led retrofit light engine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104197250A (zh) * 2014-09-22 2014-12-10 苏州承源光电科技有限公司 立式草坪灯

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