EP2895790B1 - Luminaire à paralume équipé de sources lumineuses à led - Google Patents

Luminaire à paralume équipé de sources lumineuses à led Download PDF

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Publication number
EP2895790B1
EP2895790B1 EP13760050.8A EP13760050A EP2895790B1 EP 2895790 B1 EP2895790 B1 EP 2895790B1 EP 13760050 A EP13760050 A EP 13760050A EP 2895790 B1 EP2895790 B1 EP 2895790B1
Authority
EP
European Patent Office
Prior art keywords
grid
led light
light sources
optical element
longitudinal axis
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.)
Not-in-force
Application number
EP13760050.8A
Other languages
German (de)
English (en)
Other versions
EP2895790A1 (fr
Inventor
Patrik Gassner
Bernhard KONZILIA
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.)
Zumtobel Lighting GmbH Austria
Original Assignee
Zumtobel Lighting GmbH Austria
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 Zumtobel Lighting GmbH Austria filed Critical Zumtobel Lighting GmbH Austria
Publication of EP2895790A1 publication Critical patent/EP2895790A1/fr
Application granted granted Critical
Publication of EP2895790B1 publication Critical patent/EP2895790B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/04—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures
    • F21S8/046—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures having multiple lighting devices, e.g. connected to a common ceiling base
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/04—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures
    • 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
    • F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
    • F21V11/02—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using parallel laminae or strips, e.g. of Venetian-blind type
    • 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
    • F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
    • 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
    • F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
    • F21V11/02—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using parallel laminae or strips, e.g. of Venetian-blind type
    • F21V11/04—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using parallel laminae or strips, e.g. of Venetian-blind type adjustable
    • 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
    • F21Y2101/00—Point-like light sources
    • 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 grid lamp with LED light sources (LED: light-emitting diode).
  • Grid lights are known as such from the prior art.
  • a fluorescent tube is provided as a light source.
  • the invention has for its object to provide a corresponding improved LED-based grid lamp;
  • the louver should have improved efficiency.
  • an LED grid lamp with transverse reflector elements in which the light of the LEDs is in each case irradiated between two of the transverse reflector elements.
  • Lens for light bundling are arranged between the LEDs and the transverse reflector elements.
  • Another LED grid is from the US 2009/0323328 A1 known.
  • the light emitted by an LED initially passes through a funnel-like grid element; then it is partially deflected by an elongated reflector element, so that a total of a broad area is illuminated.
  • a grid lamp which has at least two LED light sources, and a grid element which extends along a longitudinal axis, wherein the grid element has at least three transverse reflector elements which extend transversely to the longitudinal axis and by two adjacent transverse Reflector elements each have a Lichtlenkiki the raster element is limited.
  • the grid lamp is designed such that each of the LED light sources is assigned to one of the light guide units.
  • the grid lamp has an optical element which is formed independently of the grid element and which is configured and arranged such that it acts optically between the at least two LED light sources and the light guide units.
  • the optical element makes it possible to achieve that the light emitted by the LED light sources is directed in a particularly targeted manner to the respective light-directing units. This can increase the efficiency of the light output of the grid lamp.
  • the grid element has two, on the longitudinal axis extending side reflectors, wherein the transverse reflector elements are formed by cross blades, which are arranged connecting the two side reflectors.
  • the optical element it can be prevented in particular with the optical element that a light emitted by one of the LED light sources strikes a back surface of a transverse lamella pointing towards the relevant LED light source. The light can thus be used particularly effectively for the light output of the grid light.
  • the optical element has at least two divergence space segments, wherein each of the divergence space segments is bounded by inner surfaces which extend divergently between one of the LED light sources and the light guide unit associated with the respective LED light source.
  • each of the divergence space segments is bounded by inner surfaces which extend divergently between one of the LED light sources and the light guide unit associated with the respective LED light source.
  • the inner surfaces are designed at least partially reflective. A loss of light between the LED light sources and the light guide units can thereby be kept very low.
  • the optical element has transverse limiting elements which extend transversely to the longitudinal axis, wherein a part of the inner surfaces of each divergence space segment is formed by the transverse limiting elements.
  • the optical element has a concavely curved or trough-shaped, profile-like formed carrier element which extends parallel to the longitudinal axis, wherein a further part of the inner surfaces of each divergence space segment is formed by the carrier element.
  • the profile-like carrier element it is advantageously possible to form production side walls of the divergence space segments.
  • the carrier element it can be easily achieved by the carrier element that the divergence space segments are held together mechanically, so that the optical element as a whole, in itself stable unit can be formed. As a result, handling of the grid lamp is facilitated, in particular with respect to a mounting or replacement of the light source.
  • the at least two LED light sources are arranged supported on the carrier element. This makes it possible to save a separate holding element for the LED light sources.
  • the grid lamp is designed such that viewed in a cross section, the carrier element extends on two opposite sides up to the two side reflectors.
  • the optical element can be brought into the intended position in a relative position relative to the grid element particularly easily during the assembly of the grid lamp.
  • the raster element and the optical element are designed such that the optical element can be guided in a separated state from the raster element relative to the raster element parallel to the longitudinal axis guided by the two side reflectors. This can be achieved in particular that for the assembly optical element can be inserted guided from one end side into the grid element.
  • the optical element further comprises a diffuser element optically operatively disposed between the LED light sources and the light directing units.
  • a diffuser element optically operatively disposed between the LED light sources and the light directing units.
  • the diffuser element is a film.
  • the diffuser element may also be formed by a diffusing or by structuring scattering extrusion profile.
  • this structure makes it possible to replace LEDs without significant changes in the emission characteristics, if this makes sense for reasons of cost or efficiency.
  • Fig. 1 shows a perspective sketch of a raster element 3 and an optical element 6 of a lamp according to the invention.
  • the grid element 3 is elongate overall and extends along a longitudinal axis L.
  • Fig. 1 only a part of the raster element 3 is sketched, specifically with respect to the longitudinal axis L, only a longitudinal section of the raster element 3. Analogously applies to the representation of the optical element 6.
  • the louvre luminaire may have a luminaire housing 10 in which the grid element 3 is arranged, wherein preferably also the luminaire housing 10 or the entire grid light is oblong and extends along the longitudinal axis L.
  • the grid lamp may be a recessed luminaire, in particular a recessed ceiling luminaire.
  • Fig. 3 is a longitudinal section through a longitudinal portion of the grid lamp sketched.
  • the grid lamp at least two LED light sources 2, 2 'on.
  • the raster lamp is designed in such a way that a light emitted by the LED light sources 2, 2 'leaves the luminaire, in particular by a light exit opening 12 of the raster lamp formed in the luminaire housing 10.
  • the grid lamp is oriented relative to the vertical, that a discharge of the light is provided downward, so the light exit opening 12 of the lamp housing 10 facing downward, as in the FIGS. 1 to 3 indicated by an arrow u .
  • the grid lamp can also be provided differently oriented. In such a case, the directions etc. are to be reinterpreted accordingly.
  • the grid element 3 on transverse reflector elements 4, which extend transversely to the longitudinal axis L , wherein two adjacent transverse reflector elements 4 each have a Lichtlenkmaschine 5 of the raster element 3 is limited.
  • the grid element 3 has at least three transverse reflector elements 4, so that at least two light guide units 5 are formed.
  • significantly more transverse reflector elements 4 or light-guiding units 5 are provided, For example, at least six or at least ten Lichtlenkmaschineen 5, which are formed in a row along the longitudinal axis L.
  • the in Fig. 3 sketched longitudinal section of the grid lamp comprises three light guide units. 5
  • the distance between two transverse reflector elements 4 along the longitudinal axis L may for example be between 30 mm and 100 mm, preferably between 40 mm and 80 mm.
  • the raster lamp is designed so that each of the LED light sources 2, 2 'is assigned to exactly one of the light-guiding units 5.
  • an LED light source 2 at least two LEDs 21, 22 include, which are arranged in particular on at least one circuit board 13.
  • Each light guide unit 5 is preferably designed to be closed annularly in a horizontal section, so that a light inlet opening or upper opening of the light guide unit 5 is formed due to the ring shape and a light exit opening or lower opening.
  • the design is such that one of the LED light source 2, 2 'radiated light enters through the light inlet opening of the light guide unit 5 in the latter and exits through the light exit opening again and leaves the raster lamp in an outer space.
  • the grid element 3 has two, along the longitudinal axis L extending side reflectors 31, 32 and the transverse reflector elements 4 are formed by transverse lamellae 33 which are arranged connecting the two side reflectors 31, 32.
  • a raster element 3 is known as such from the prior art.
  • Fig. 4 is one of the Fig. 1 corresponding perspective sketch outlined at an angle from above. It can be seen that the transverse lamellae 33 have a back surface 331 on their side pointing toward the LED light sources 2, 2 'or on their upward-pointing side, and - as in FIG Fig. 3 indicated - two main surfaces 332, 333.
  • Each light guide unit 5 is thus through a main surface 332nd a first transverse lamella and a main surface 333 of an adjacent to the first transverse lamella, second transverse lamella bounded in the longitudinal direction.
  • the raster lamp further comprises an optical element 6, which is formed independently of the raster element 3 and which is configured and arranged such that it acts optically between the LED light sources 2, 2 and the light guide units 5.
  • an optical element 6 is designed such that a of one of the LED light sources 2, 2 'emitted light is only in the, the relevant LED light source 2, 2' associated light-deflecting element 5 is irradiated.
  • the optical element 6 may have divergence space segments 7, wherein preferably each of the divergence space segments 7 is assigned to exactly one of the LED light sources 2, 2 '.
  • Each divergence space segment 7 is bounded by inner surfaces 71, 72, 73, 74, which extend divergently between the respective LED light source 2, 2 'and the respectively associated light guide unit 5.
  • the divergence space segments 7 can thus be designed quasi funnel-shaped, wherein an LED light source 2, 2 'is arranged on or in the smaller or upper funnel opening and the larger or lower funnel opening to the relevant light guide unit 5 points.
  • the larger funnel opening is designed such that it corresponds in shape and size of the upper opening or light inlet opening of the relevant light guide unit 5. In this way it can be achieved that particularly little light of the LED light source 2, 2 is lost for the radiation of the raster lamp.
  • light mixing chambers or light chambers can be formed by the divergence space segments 7.
  • the inner surfaces 71, 72, 73, 74 are designed to be at least partially reflective, in particular highly reflective. Preferably, all inner surfaces 71, 72, 73, 74 are designed reflecting.
  • the inner walls 71, 72, 73, 74 may be designed for this purpose, for example, white or as reflective aluminum surfaces.
  • the optical element 6 preferably further comprises transverse limiting elements 8 which extend transversely to the longitudinal axis L , wherein a part of the inner surfaces, namely two transversely to the longitudinal axis extending transverse inner surfaces 73, 74 of each divergence space segment 7 by the transverse limiting elements. 8 are formed.
  • the transverse limiting elements 8 may advantageously be formed as planar elements, which are inclined with respect to the vertical, for example, between 30 ° and 60 ° inclined oriented oriented manufacturing technology.
  • the transverse limiting elements 8 are designed such that the transverse inner surfaces 73, 74 formed by them extend up to the upper edges of those main surfaces 332, 333, by which the relevant light-guiding unit 5 is limited in the longitudinal direction. In this way, it is possible to prevent a light emitted by the LED light sources 2, 2 'from striking a back surface 331 of a transverse lamella 33.
  • the transverse limiting elements 8 preferably extend up to the height of the relevant LED light source 2, 2 ', or to the LEDs 21, 22 of the relevant LED light source 2, 2'.
  • the optical element 6 preferably also has a concavely shaped channel-shaped, profiled carrier element 9 which extends parallel to the longitudinal axis L , wherein a further part of the inner surfaces namely two longitudinal inner surfaces 71, 72 of each extending longitudinally to the longitudinal axis L. Divergence space segment 7 is formed by the support member 9.
  • the optical element 6 can be advantageously designed as a stable unit.
  • the transverse boundary elements 8 and / or the LED light sources 2, 2 ' are preferably arranged supported on the carrier element 9.
  • the at least one circuit board 13 may be supported on the carrier element 9.
  • the carrier element 9 is formed from one piece, so that manufacturing technology advantageously the two longitudinal inner surfaces 71, 72 of all divergence space segments 7 are formed by only one component.
  • the support element 8 is preferably designed such that it extends on two opposite sides to side reflectors 31, 32 out.
  • the design is such that the side reflectors 31, 32 extend further upward than the transverse lamellae 33.
  • the design is furthermore preferably such that the optical element 6 is in a state separated from the raster element 3 relative to the latter Raster element 3 parallel to the longitudinal axis L of the two side reflectors 31, 32 can be guided.
  • the side reflectors 31, 32 in this case form, as it were, a guide rail for the optical element 6.
  • the light source of the grid lamp to be replaced.
  • a corresponding grid lamp which has a traditional fluorescent tube as the light source
  • it can be replaced particularly easily by a corresponding module comprising the optical element 6 and the LED light sources 2, 2 '.
  • the module thus formed can be easily inserted into the front side of the raster element 3 and then connect electrically accordingly.
  • the module may in particular consist of the grid element 6 and the LED light sources 2, 2 '.
  • the optical element 6 also has a diffuser element 11, which is arranged optically effectively between the LED light sources 2, 2 'and the light guide units 5.
  • the diffuser element 11 is concavely curved with respect to a, the LED light sources 2, 2 'side facing.
  • the light emitted by the LED light sources 2, 2 ' can be distributed by the diffuser element 11 in such a way that it is more homogeneously distributed from the outside when viewed in terms of color mixing, glare and the risk of multiple shading appears on the work surfaces.
  • Fig. 5 shows a sketched view obliquely from below into a light guide unit 5 of the raster element 3, with a view of the diffuser element eleventh
  • the diffuser element 11 may be formed in the form of a diffuser film.
  • the diffuser element 11 is supported on the carrier element 9. Further preferably, the diffuser element 11 consists of one piece.
  • LED light sources of different designs can be introduced into the divergence space segments 7 in a particularly flexible manner.
  • the diffuser element 11 can be particularly advantageous from different types of diffuser elements select.
  • a raster lamp according to the invention is particularly suitable as a lamp that can deliver a high amount of light, in particular as a workstation-compatible lamp with a small light exit surface, so that ausblendende reflectors are required in multiple arrangements or a light grid.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Led Device Packages (AREA)

Claims (10)

  1. Luminaire à grille comprenant :
    - au moins deux sources de lumière à LED (2, 2'),
    - un élément de grille (3) qui s'étend le long d'un axe longitudinal (L), l'élément de grille (3) comprenant au moins trois éléments réflecteurs transversaux (4) qui s'étendent transversalement par rapport à l'axe longitudinal (L),
    les éléments réflecteurs transversaux (4) délimitant chacun une unité de déviation de lumière (5) de l'élément de grille (3),
    le luminaire à grille étant conçu de façon à ce que chacune des sources de lumière à LED (2, 2') soit munie d'une des unités de déviation de lumière (5),
    - un élément optique (6) qui est prévu indépendamment de l'élément de grille (3),
    caractérisé en ce que
    l'élément optique (6) est conçu et disposé de façon à ce qu'il agisse optiquement entre les au moins deux sources de lumière à LED (2, 2') et les unités de déviation de lumière (5),
    l'élément optique (6) comprenant au moins deux segments spatiaux à divergence (7), chacun des segments spatiaux à divergence (7) étant limité par des surfaces internes (71, 72, 73, 74) qui s'étendent chacune de manière divergente entre une des sources de lumière à LED (2, 2') et l'unité de déviation (5) correspondant à la source de lumière à LED (2, 2') concernée,
    l'élément optique (6) comprenant un élément de support (9) présentant une forme profilée, incurvée de manière concave ou en forme de gouttière, qui s'étend parallèlement à l'axe longitudinal (L), une autre partie des surfaces internes (71, 72) d'un segment spatial à divergence (7) étant constitué de l'élément de support (9).
  2. Luminaire à grille selon la revendication 1
    dans lequel l'élément de grille (3) comprend deux réflecteurs latéraux (31, 32) s'étendant le long de l'axe longitudinal (L) et les éléments réflecteurs transversaux (4) sont constitués de lamelles transversales (33) qui sont disposées de façon à relier les deux réflecteurs latéraux (31, 32).
  3. Luminaire à grille selon la revendication 1 ou 2,
    dans lequel les surfaces internes (71, 72, 73, 74) sont au moins partiellement réfléchissantes.
  4. Luminaire à grille selon l'une des revendications précédentes,
    dans lequel l'élément optique (6) comprend des éléments de limitation latérale (8) qui s'étendent transversalement par rapport à l'axe longitudinal (L), une partie des surfaces internes (73, 74) de chaque segments spatial à divergence (7) étant constituées des éléments de limitation latérale (8).
  5. Luminaire à grille selon l'une des revendications précédentes,
    dans lequel les au moins deux sources de lumière à LED (2, 2') sont maintenues sur l'élément de support (9).
  6. Luminaire à grille avec les caractéristiques mentionnées dans la revendication 2,
    dans lequel l'élément de support (9) s'étend, vu en section transversale, sur deux côtés opposés jusqu'aux deux réflecteurs latéraux (31, 32).
  7. Luminaire à grille selon la revendication 6,
    dans lequel l'élément de grille (3) et l'élément optique (6) sont conçus de façon à ce que l'élément optique (6) puisse être déplacé de manière guidée, dans un état séparé de l'élément de grille (3), par rapport à l'élément de grille (3), parallèlement à l'axe longitudinal (L), à partir des deux réflecteurs latéraux (31, 32).
  8. Luminaire à grille selon l'une des revendications précédentes,
    dans lequel l'élément optique (6) comprend en outre un élément diffuseur (11) qui agit optiquement entre les sources de lumière à LED (2, 2') et les unités de déviation de lumière (5).
  9. Luminaire à grille selon la revendication 8,
    dans lequel l'élément diffuseur (11) est incurvée de manière concave par rapport à un côté orienté vers les sources de lumière à LED (2, 2').
  10. Luminaire à grille selon la revendication 8 ou 9,
    dans lequel l'élément diffuseur (11) est un film ou un profilé d'extrusion diffus ou diffusant grâce à une texturation.
EP13760050.8A 2012-09-11 2013-09-11 Luminaire à paralume équipé de sources lumineuses à led Not-in-force EP2895790B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202012103452U DE202012103452U1 (de) 2012-09-11 2012-09-11 Rasterleuchte mit LED-Lichtquellen
PCT/EP2013/068796 WO2014041016A1 (fr) 2012-09-11 2013-09-11 Luminaire à paralume équipé de sources lumineuses à led

Publications (2)

Publication Number Publication Date
EP2895790A1 EP2895790A1 (fr) 2015-07-22
EP2895790B1 true EP2895790B1 (fr) 2016-12-21

Family

ID=49162154

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13760050.8A Not-in-force EP2895790B1 (fr) 2012-09-11 2013-09-11 Luminaire à paralume équipé de sources lumineuses à led

Country Status (4)

Country Link
EP (1) EP2895790B1 (fr)
CN (1) CN104603523A (fr)
DE (1) DE202012103452U1 (fr)
WO (1) WO2014041016A1 (fr)

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Publication number Priority date Publication date Assignee Title
DE102014115823A1 (de) * 2014-10-30 2016-05-04 Itz Innovations- Und Technologiezentrum Gmbh LED-Entblendungsraster mit Finnen
DE102019111593A1 (de) * 2019-05-06 2020-11-12 Zumtobel Lighting Gmbh Längliche Leuchte
USD940946S1 (en) * 2019-09-19 2022-01-11 Changzhou Kaisen Photoelectricity Co., Ltd. LED light
CN210687896U (zh) * 2019-09-30 2020-06-05 欧普照明股份有限公司 配光组件及照明灯具

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DE29504730U1 (de) 1994-12-09 1996-04-18 Zumtobel Licht Gmbh, Dornbirn Einbauleuchte
EP1496488A1 (fr) * 2002-04-17 2005-01-12 Kabushiki Kaisha Box Dispositif electroluminescent de surface
US7637045B2 (en) * 2004-07-06 2009-12-29 Asagicreate Co., Ltd. Surface light source and electrically illuminated signboard
DE102004040130A1 (de) * 2004-08-18 2006-02-23 Aldi Einkauf Gmbh & Co. Ohg Beleuchtungseinrichtung
US20060104061A1 (en) * 2004-11-16 2006-05-18 Scott Lerner Display with planar light source
EP1960710B1 (fr) * 2005-12-07 2015-01-07 Koninklijke Philips N.V. Module d'eclairage
DE202008003097U1 (de) * 2008-03-05 2009-08-06 Zumtobel Lighting Gmbh Beleuchtungsanordnung mit Tragprofil
CN101614367B (zh) * 2008-06-25 2011-12-28 富准精密工业(深圳)有限公司 发光二极管灯具
CN201269439Y (zh) * 2008-09-30 2009-07-08 鹤山丽得电子实业有限公司 一种直射led格栅灯
JP5308125B2 (ja) * 2008-11-11 2013-10-09 パナソニック株式会社 照明器具
EP2187113A1 (fr) * 2008-11-18 2010-05-19 Toshiba Lighting & Technology Corporation Dispositif d'éclairage incluant un couvercle translucide pour diffuser une lumière à partir d'une source lumineuse
WO2011001329A1 (fr) * 2009-06-29 2011-01-06 Koninklijke Philips Electronics N.V. Luminaire à diode électroluminescente utilisant des écrans comme dissipateur de chaleur
IT1396316B1 (it) * 2009-10-06 2012-11-16 Giovine Di Proiettore ad ampia diffusione con sorgenti leds precollimate.
CN201531777U (zh) * 2009-10-30 2010-07-21 史杰 Led光源格栅灯
DE202009016793U1 (de) 2009-12-11 2011-04-21 Zumtobel Lighting Gmbh Anordnung zur Lichtabgabe
TWM388608U (en) * 2010-05-20 2010-09-11 Yu-Lin Peng Improved structure of light steel frame lamp

Also Published As

Publication number Publication date
CN104603523A (zh) 2015-05-06
DE202012103452U1 (de) 2013-12-12
EP2895790A1 (fr) 2015-07-22
WO2014041016A1 (fr) 2014-03-20

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