EP2920513B1 - Luminaire et procédé de fabrication d'un luminaire - Google Patents

Luminaire et procédé de fabrication d'un luminaire Download PDF

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Publication number
EP2920513B1
EP2920513B1 EP13750704.2A EP13750704A EP2920513B1 EP 2920513 B1 EP2920513 B1 EP 2920513B1 EP 13750704 A EP13750704 A EP 13750704A EP 2920513 B1 EP2920513 B1 EP 2920513B1
Authority
EP
European Patent Office
Prior art keywords
extruded profile
light outlet
end cap
lighting fixture
longitudinal side
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.)
Active
Application number
EP13750704.2A
Other languages
German (de)
English (en)
Other versions
EP2920513A1 (fr
Inventor
Fabian Reingruber
Timo Dilger
Bernhard Kleemann
Christian Kopf
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 EP2920513A1 publication Critical patent/EP2920513A1/fr
Application granted granted Critical
Publication of EP2920513B1 publication Critical patent/EP2920513B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F21V15/00—Protecting lighting devices from damage
    • F21V15/01—Housings, e.g. material or assembling of housing parts
    • F21V15/013—Housings, e.g. material or assembling of housing parts the housing being an extrusion
    • 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
    • F21V15/015—Devices for covering joints between adjacent lighting devices; End coverings
    • 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
    • F21S8/06—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures by suspension
    • 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
    • F21V7/0008—Reflectors for light sources providing for indirect lighting
    • 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
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • 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
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • F21Y2103/10—Elongate light sources, e.g. fluorescent tubes comprising a linear array of point-like light-generating elements
    • 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
    • F21Y2105/00—Planar light sources
    • F21Y2105/10—Planar light sources comprising a two-dimensional array of point-like light-generating elements
    • 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 lamp body according to the preamble of patent claim 1 and a method for producing a lamp body.
  • the object of the present invention is therefore to provide a lamp body which can be produced in a cost-effective manner and does not have the optical impression reducing joints, as well as to provide a cost-effective method for producing such a lamp body.
  • the luminaire body according to the invention comprises an extruded profile element with a first longitudinal extension in a longitudinal direction, wherein the extruded profile element has a light exit element with at least one light exit opening arranged therein.
  • the light exit element thereby limits the luminaire body at least partially in a light exit direction.
  • the extruded profile element comprises two longitudinal side elements arranged opposite one another at least partially along the longitudinal extension direction and arranged opposite the light exit direction on the light exit element, with a second longitudinal extent in the longitudinal direction of extension. These longitudinal side elements delimit the luminaire body along the longitudinal extension direction at least partially laterally, wherein the extruded profile element has at least one open extruded profile end which delimits the extruded profile element in its first longitudinal extent.
  • the luminaire body comprises at least one end cap, which can be arranged on the at least one open extruded profile end of the extruded profile element.
  • the longitudinal side elements each have at least one longitudinal side element end which delimits the respective longitudinal side element in its second longitudinal extent, the longitudinal side elements being arranged on the light exit element such that the longitudinal side element ends each have a spacing from the extruded profile end so that the end cap can be arranged in contact with the longitudinal side element ends and the light exit element is.
  • parting lines in particular between the end cap and the extruded profile element, are not in the field of view of a user, which is usually provided in direct light through the light exit element in the light exit direction of a lamp body.
  • This also has the advantage that the lamp body can be manufactured very easily and inexpensively as extruded profile by extrusion and to cover the open extruded profile ends separate end caps can be used without having to take optically disturbing joints in purchasing. Because of the inventive design of the extruded profile element and thereby provided arrangement possibility of the end cap, it is only possible that the contact areas between the end cap and the extruded profile element are not in the field of view of a user.
  • the underside of the lamp body is thus formed solely by the light exit element of the extruded profile element.
  • the light exit element in the light exit direction is referred to as the underside, without being understood thereby is to be that the light exit element must be arranged "down".
  • the light fixture can not only be used for ceiling lights, but can for example be arranged on a wall or in another positioning, so that the bottom of the lamp body is not necessarily down in a spatial arrangement.
  • the end cap, in particular the underside thereof can therefore be arranged at the open ends of the extruded profile element such that it is located above the light outlet element, and thus no air gap or parting line from which unwanted light can escape from below can be seen from below.
  • the visible lower outer surface of the lamp body can be realized as a continuous unit.
  • the light exit opening of the light exit element of the extruded profile element can be introduced, for example, by a milling process in the light exit element.
  • the ends of the extruded profile element can be edited so that the end caps are not visible on the lower viewing surface.
  • the extruded profile end and at least part of the end cap arranged at the open extruded end end form an end face of the luminaire body.
  • Processing marks such as milling edges on the extruded profile end, if present, can be laminated by a coating, in particular powder. So it can be made possible that at the light exit side no joints are present, which reduce the visual impression, and that at the same time provides the front side of the lamp body, if it is in a field of view of a user, a closed and uniform appearance.
  • the respective distance of the longitudinal side element ends to the extruded profile end is at least as large as a thickness of the end cap in a respective contact region in which the end cap is contactable with the respective longitudinal side element ends, wherein the thickness of the end cap is a dimension in the longitudinal direction of the extruded profile element when placing the end cap on the at least one open extruded profile end.
  • the extruded profile element and the at least one end cap are designed such that the end cap can be arranged in a form-fitting manner on the at least one open extruded profile end, which allows a particularly uniform appearance of the luminaire body.
  • the at least one end cap can have at least one coupling element by means of which the end cap can be fastened to the extruded profile element.
  • This coupling element can be designed so that it can be pressed into the extruded profile element.
  • a plurality of coupling elements may be provided, so that they are arranged on the end cap, that this example, when placing the end cap on an open Extruded profile against the inner surfaces of the longitudinal side elements are pressed, so that the attachment is accomplished by the frictional press connection.
  • the end cap and / or only the coupling elements may be, for example, from an at least partially elastic material.
  • the coupling elements as a screw connection, in particular between the end cap and the top of the extruded profile element or the top of the light exit element of the extruded profile element conceivable.
  • These screw connections are not visible from below and thus do not reduce the appearance of the lamp body or the lamp.
  • LEDs are arranged on the light exit element of the extruded profile element in the region of the opening of the light exit element such that light can be emitted by the LEDs in the direction of the light exit direction.
  • LEDs are arranged on the light exit element of the extruded profile element in the region of the opening of the light exit element such that light can be emitted by the LEDs in the direction of the light exit direction.
  • LEDs as bulbs allows a particularly flat and compact design of such a lamp or lamp body.
  • the extruded profile element may comprise guide rails which are arranged opposite to the light exit direction in the longitudinal direction of extension and on the light exit element.
  • These guide rails may be formed, for example, for receiving LED printed circuit boards, which is a very simple and advantageous way to arrange LEDs on the lamp body.
  • the guide rails can also be used for pressing the coupling elements of the end cap with the extruded profile element.
  • the end cap can also have at least one guide element, by means of which a printed circuit board inserted between two guide rails of the extruded profile element can be at least partially covered. Since printed circuit boards inserted in the guide rails, in particular LED circuit boards for indirect illumination, can also have components that differ from the LEDs, such as a plug, the guide element can very advantageously provide a cover for such elements which should not be visible or also for protection, such as from pollution. In addition, the guide elements can also serve the positioning of the circuit boards.
  • At least one printed circuit board with LEDs arranged thereon is inserted between two guide rails, the LEDs being arranged on the printed circuit board such that light can be emitted from the LEDs in a direction opposite to the light exit direction.
  • the wiring for supplying the LEDs can run in a particularly space-saving manner under the end caps.
  • the removal of a part of the light exit surface and a part of the longitudinal side elements is preferably carried out by means of milling.
  • extruded profile ends can also be machined by means of milling or otherwise, for example, the corners of the light exit element at the extruded profile end can be rounded or the light exit element can be varied in shape in a different way.
  • the extruded profile element can subsequently be coated or powder coated in such a way, in particular on the removal of parts or following the milling processes, that the machining tracks are concealed.
  • Fig. 1a shows a schematic and perspective bottom view of an extruded profile element 12 of a lamp body 10 (see. Fig. 4a ) according to an embodiment of the invention.
  • the extruded profile element 12 has a light exit element 14 with a light exit opening 16.
  • 12 longitudinal side members 18 are arranged in the longitudinal direction of the extruded profile element, which limit the lamp body 10 laterally.
  • the extruded profile element 12 can be made of aluminum. Aluminum has a good thermal conductivity, high stability, even at low height of the lamp body 10, and is also still relatively inexpensive.
  • the extruded profile element 12 can be manufactured by means of extrusion processes.
  • the recess for the light exit opening 16 can then be introduced by a milling process. This will be a seamless Base body for the lamp body 10 is provided.
  • Fig. 1b shows a schematic profile representation of an extruded profile element 12 of a lamp body 10 according to an embodiment of the invention.
  • the extruded profile element 12 comprises a light exit element 14 and longitudinal side elements 18.
  • the longitudinal side elements 18 could also be angled in cross section, as shown here, and thus form part of a cover element of the luminaire body 10.
  • the extruded profile element 12 also comprises a plurality of guide rails 20. These can be designed to guide elements 30 (cf. Fig. 3a ) an end cap or LED PCBs.
  • the extruded profile element 12 may also be formed with a cover element 22.
  • the cover element 22 may in this case be closed, that is to say be in contact or integrally formed with the longitudinal side elements 18, or also, as shown here, extend over the cross section of the extruded profile element 12 only in certain regions.
  • This only partial embodiment of the cover element 22 has the advantage that LEDs radiating upwards can also be arranged on the light exit element 14, in particular opposite to the light emission direction of the LEDs arranged in the region of the light exit opening 16, in order to allow indirect illumination.
  • Fig. 1c shows a schematic and perspective plan view of an extruded profile element 12 of a lamp body 10 according to an embodiment of the invention.
  • the extruded profile element 12 is as to Fig. 1 and Fig. 2 already described.
  • the longitudinal side element ends 18a are at a distance from the extruded profile end 12a.
  • This shortened design of the longitudinal side elements 18 as well as of all other elements arranged on the light exit element 14 of the extruded profile element 12 can thereby also be realized by a milling operation, in particular after the extrusion of the extruded profile element.
  • This design of the extruded profile element 12 allows an arrangement of an end cap 26 on the extruded profile end 12a, so that no joints are visible from below and the visible lower outer surface of the lamp body 10 is realized as a continuous unit.
  • the end cap 26 can now be arranged on the extruded profile element 12 so that it contacts the upper side of the light outlet element 14 of the extruded profile element 12 and at the same time the Lijnsuiteelementenden 18.
  • the light exit element 14 may be configured in the region of the extruded end 12 a at will in its shape, such as for example, with rounded corners 24, as in Fig. 2 shown.
  • the end cap 26 may then also be designed accordingly in its shape, so that it is preferably form-fitting manner on the extruded profile element 12 can be arranged.
  • Fig. 3a shows a schematic representation of an end cap 26 of a lamp body 10 in a first perspective according to an embodiment of the invention.
  • the end cap 26 in this case has a transverse side surface 32, which forms a conclusion of the lamp body in its longitudinal extent.
  • the end cap 26 here also has rounded corners 24a, so that they are in an arrangement on an extruded profile element 12 according to Fig. 2 positively, in particular with its light exit element 14 terminates.
  • the end cap 26 comprises coupling elements 28, which, as shown here, are designed as connecting elements, which can be pressed into the extruded profile element 12.
  • the end cap 26 also comprises guide elements 30, which are formed flat and can be inserted into the guide rails 20 of the extruded profile element 12.
  • Fig. 3b shows the in Fig. 3a illustrated end cap 26 again from a second perspective.
  • Fig. 4a shows a schematic representation of a lamp body 10 with an extruded profile element 12 and an end cap 26 can be arranged thereon according to an embodiment of the invention.
  • the end cap 26 may be formed so that it has side surfaces which form a conclusion to the transverse side of the lamp body 10 back and up, and that in particular between the ends of the guide rails 20 and the transverse side surface 32 is a distance.
  • a clearance or cavity is provided, so that in the end cap 26, the wiring 34 for supplying the LEDs can run and in particular can be guided around the guide rails 20.
  • Fig. 4b shows a schematic representation of a lamp body 10 as in Fig. 4a In particular, this can be easily inserted into the extruded profile element 12 by the existing coupling elements 28 and / or guide elements 30.
  • Fig. 5 shows a schematic representation of a designed for a ceiling light fixture body 10 with a suspension 36 according to an embodiment of the invention.

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

Claims (11)

  1. Corps de luminaire (10), comportant un élément profilé extrudé (12) présentant une première extension longitudinale dans une direction de l'extension longitudinale et comportant un élément de sortie de la lumière (14) avec au moins un orifice de sortie de la lumière (16) agencé dedans, l'élément de sortie de la lumière (14) délimitant le corps de luminaire (10) au moins en partie dans une direction de sortie de la lumière, l'élément profilé extrudé (12) comprenant deux éléments de côté longitudinal (18) en vis-à-vis au moins partiellement le long de la direction de l'extension longitudinale, agencés à l'encontre de la direction de sortie de la lumière sur l'élément de sortie de la lumière (14) et présentant une deuxième extension longitudinale dans la direction de l'extension longitudinale, lesquels éléments délimitent le corps de luminaire (10) latéralement, au moins en partie, le long de la direction de l'extension longitudinale, l'élément profilé extrudé (12) présentant au moins une extrémité de profilé extrudé ouverte (12a) qui délimite l'élément profilé extrudé (12) dans sa première extension longitudinale, le corps de luminaire (10) comprenant au moins un cache d'extrémité (26) qui peut être disposé sur l'au moins une extrémité de profilé extrudé ouverte (12a) de l'élément profilé extrudé (12), caractérisé en ce que les éléments de côté longitudinal (18) présentent respectivement au moins une extrémité d'élément de côté longitudinal (18a) qui délimite l'élément de côté longitudinal respectif (18) dans sa deuxième extension longitudinale, les éléments de côté longitudinal (18) étant agencés de manière telle sur l'élément de sortie de la lumière (14) que les extrémités des éléments de côté longitudinal (18a) sont respectivement distantes de l'extrémité de profilé extrudé (12a), de sorte que le cache d'extrémité (26) peut être agencé au contact des extrémités des éléments de côté longitudinal (18a) et de l'élément de sortie de la lumière (14).
  2. Corps de luminaire (10) selon la revendication 1, caractérisé en ce que l'extrémité de profilé extrudé (12a) et au moins une partie du cache d'extrémité (26) situé à l'extrémité de profilé extrudé ouverte (12a) forment une face frontale du corps de luminaire (10).
  3. Corps de luminaire (10) selon l'une des revendications précédentes, caractérisé en ce que la distance respective entre les extrémités des éléments de côté longitudinal (18a) et l'extrémité de profilé extrudé (12a) est au moins aussi grande qu'une épaisseur du cache d'extrémité (26) dans une zone de contact respective dans laquelle le cache d'extrémité (26) peut être mis au contact des extrémités respectives des éléments de côté longitudinal (18a), l'épaisseur du cache d'extrémité (26) étant une dimension dans la direction de l'extension longitudinale de l'élément profilé extrudé (12) dans le cas d'un agencement du cache d'extrémité (26) sur l'au moins une extrémité de profilé extrudé ouverte (12a).
  4. Corps de luminaire (10) selon l'une des revendications précédentes, caractérisé en ce que l'élément profilé extrudé (12) et l'au moins un cache d'extrémité (26) sont réalisés de telle sorte que le cache d'extrémité (26) peut être agencé avec complémentarité de forme sur l'au moins une extrémité de profilé extrudé ouverte (12a).
  5. Corps de luminaire (10) selon l'une des revendications précédentes, caractérisé en ce que l'au moins un cache d'extrémité (26) comporte au moins un élément de couplage (28) au moyen duquel le cache d'extrémité (26) peut être fixé sur l'élément profilé extrudé (12).
  6. Corps de luminaire (10) selon l'une des revendications précédentes, caractérisé en ce que des DEL sont agencées de manière telle, sur l'élément de sortie de la lumière (14) de l'élément profilé extrudé (12), dans la zone de l'orifice de sortie de la lumière (16) de l'élément de sortie de la lumière (14), que de la lumière peut être émise par les DEL en direction de la direction de sortie de la lumière.
  7. Corps de luminaire (10) selon l'une des revendications précédentes, caractérisé en ce que l'élément profilé extrudé (12) comporte des rails de guidage (20) qui sont agencés dans la direction de l'extension longitudinale et sur l'élément de sortie de la lumière (14) dans le sens contraire de la direction de sortie de la lumière.
  8. Corps de luminaire (10) selon la revendication 7, caractérisé en ce que le cache d'extrémité (26) comporte au moins un élément de guidage (30) qui permet de recouvrir, au moins en partie, une carte de circuit imprimé introduite entre deux rails de guidage (20) de l'élément profilé extrudé (12).
  9. Corps de luminaire (10) selon la revendication 7 ou 8, caractérisé en ce qu'au moins une carte de circuit imprimé comportant des DEL est introduite entre deux rails de guidage (20), les DEL étant agencées sur la carte de circuit imprimé de manière telle que de la lumière peut être émise par les DEL dans une direction opposée à celle de la direction de sortie de la lumière.
  10. Procédé de fabrication d'un corps de luminaire (10), comportant les étapes suivantes :
    - extrusion d'un élément profilé extrudé (12) avec une première extension longitudinale dans une direction de l'extension longitudinale, avec un élément de sortie de la lumière (14) et avec deux éléments de côté longitudinal (18) en vis-à-vis au moins en partie le long de la direction de l'extension longitudinale et agencés à l'encontre d'une direction de sortie de la lumière sur l'élément de sortie de la lumière (14) avec la première extension longitudinale dans la direction de l'extension longitudinale, l'élément de sortie de la lumière (14) délimitant le corps de luminaire (10) au moins en partie dans la direction de sortie de la lumière et les éléments de côté longitudinal (18) délimitant le corps de luminaire (10) latéralement, au moins en partie, le long de la direction de l'extension longitudinale ;
    - retrait d'au moins une partie de l'élément de sortie de la lumières (14) de l'élément profilé extrudé (12), de sorte qu'il se forme au moins un orifice de sortie de la lumière (16) dans l'élément de sortie de la lumière (14) ;
    - retrait de respectivement une partie des éléments de côté longitudinal (18) sur au moins une extrémité de profilé extrudé ouverte (12a), de sorte que ceux-ci présentent respectivement une deuxième extension longitudinale qui est délimitée par respectivement une extrémité d'élément de côté longitudinal (18a), et de sorte que les extrémités des éléments de côté longitudinal (18a) présentent respectivement une distance par rapport à l'extrémité de profilé extrudé (12a) ;
    - agencement d'un cache d'extrémité (26) sur l'extrémité de profilé extrudé ouverte (12a) de manière telle que celui-ci entre en contact avec l'élément de sortie de la lumière (14) et les extrémités des éléments de côté longitudinal (18a).
  11. Procédé selon la revendication 10, comportant l'étape supplémentaire suivante :
    retrait, avant l'agencement du cache d'extrémité (26), d'une partie de l'élément de sortie de la lumière (14) à l'extrémité de profilé extrudé (12a) selon une configuration prédéterminable d'un contour de l'extrémité de profilé extrudé (12a).
EP13750704.2A 2012-11-16 2013-08-20 Luminaire et procédé de fabrication d'un luminaire Active EP2920513B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012220969.7A DE102012220969A1 (de) 2012-11-16 2012-11-16 Leuchtenkörper und verfahren zum herstellen eines leuchtenkörpers
PCT/EP2013/067309 WO2014075825A1 (fr) 2012-11-16 2013-08-20 Luminaire et procédé de fabrication d'un luminaire

Publications (2)

Publication Number Publication Date
EP2920513A1 EP2920513A1 (fr) 2015-09-23
EP2920513B1 true EP2920513B1 (fr) 2016-11-09

Family

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Application Number Title Priority Date Filing Date
EP13750704.2A Active EP2920513B1 (fr) 2012-11-16 2013-08-20 Luminaire et procédé de fabrication d'un luminaire

Country Status (3)

Country Link
EP (1) EP2920513B1 (fr)
DE (1) DE102012220969A1 (fr)
WO (1) WO2014075825A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT15737U1 (de) * 2016-11-28 2018-05-15 Zumtobel Lighting Gmbh Längliche Leuchte

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4313080A1 (de) * 1993-04-21 1994-10-27 Heinrich Korte Kopfstück für eine Langfeldleuchte
DE102005016487A1 (de) * 2005-04-08 2006-10-12 Setolite Lichttechnik Gmbh Leuchte
DE202008006765U1 (de) * 2008-05-17 2008-07-31 Fkb Gmbh Einbauleuchte
JP4447644B2 (ja) * 2008-07-15 2010-04-07 シーシーエス株式会社 光照射装置
US8915611B2 (en) * 2011-04-08 2014-12-23 Lunera Lighting, Inc. Light well providing wide angle up lighting in an LED luminaire
JP2012243393A (ja) * 2011-05-13 2012-12-10 Toshiba Lighting & Technology Corp 照明器具

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Publication number Publication date
EP2920513A1 (fr) 2015-09-23
WO2014075825A1 (fr) 2014-05-22
DE102012220969A1 (de) 2014-05-22

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