EP2920513A1 - Lighting fixture and method for producing a lighting fixture - Google Patents

Lighting fixture and method for producing a lighting fixture

Info

Publication number
EP2920513A1
EP2920513A1 EP13750704.2A EP13750704A EP2920513A1 EP 2920513 A1 EP2920513 A1 EP 2920513A1 EP 13750704 A EP13750704 A EP 13750704A EP 2920513 A1 EP2920513 A1 EP 2920513A1
Authority
EP
European Patent Office
Prior art keywords
extruded profile
light exit
lamp body
longitudinal
end cap
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
Application number
EP13750704.2A
Other languages
German (de)
French (fr)
Other versions
EP2920513B1 (en
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/en
Application granted granted Critical
Publication of EP2920513B1 publication Critical patent/EP2920513B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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 luminaire body which can be produced in a cost-effective manner and has no parting lines which reduce the visual impression, and a costly provide favorable 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 two Strangpro- filelement comprises at least partially along the longitudinal extension direction opposite to and against the light exit direction at the light exit element arranged longitudinal side members having a second longitudinal ⁇ extension in the longitudinal direction. These longitudinal side members to limit the lamp body along the longitudinal direction at least partially laterally, wherein the extruded profile member has at least one extruded profile offe ⁇ nes end defining the Strangprofilele ⁇ element in its first longitudinal extent.
  • the direct WEI comprises the lamp body at least one Endkap ⁇ pe, which can be arranged on the at least one open end of the extruded profile extruded profile element.
  • the longitudinal side ⁇ elements each have at least one L joss109elemen- tende, which limits the respective longitudinal side member in its second longitudinal extent, wherein the Longitudinal side elements are arranged in such a way ⁇ at the light exit element, that the longitudinal side member ends each having ei ⁇ NEN distance from the end of the extruded profile, so that the end cap at the longitudinal side member and ends at the light exit element is contactingly arranged.
  • parting lines in particular between the end cap and the extruded profile element, are not in the field of view of Benut ⁇ zers, which is usually provided in direct light through the light exit element in Lichtaus ⁇ direction of passage of a lamp body.
  • This also has the advantage that the luminaire body can be manufactured very easily and cost-effectively as extruded profile by means of extrusion, and separate end caps can be used to cover the open extruded profile ends, without having to accept optically disturbing parting lines.
  • the inventive Ausbil ⁇ -making of the extruded profile element and the resulting fatiguege ⁇ presented possible arrangement of the end cap, it is made possible that the areas of contact between the end cap and the extruded profile element not in reformbe ⁇ rich a user.
  • the underside of the luminaire ⁇ ten Economicss is formed simply by the light emission element of the extruded profile element.
  • the light exit element in light ⁇ outlet direction is as a base here refers, to be without understood to mean that the light exit element must be arranged "below”.
  • the lamp body can be used not only for ceiling lights, special can examples play, also on a wall or be arranged in another position ⁇ tion, so that the underside of the Luminaire body in a spatial arrangement is not necessarily down.
  • the end cap particularly its Un ⁇ underside, that is at the open ends of the Strangpro ⁇ filelements can be arranged that this is located above the light-emitting element, and thus no air gap or separating gap, may leak light from below from the undesired manner to see is.
  • 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 profiled element can thereby be introduced, for example by ei ⁇ NEN milling operation 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 production of such a lamp body is very inexpensive and easy and it is at the same time a jointless lower outer surface provided by the lamp body according to the invention.
  • the extruded profile end and at least part of the open strand ⁇ profiled arranged end cap form an end face of the lamp body. Processing marks, such as milling edges on the extruded profile end, if present, can be laminated by a coating, in particular powder.
  • 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 contacted with the respective longitudinal side element ends, wherein the thickness of the end cap from a measurement in the direction of extent ⁇ of the extruded profile element when arranging the end cap on the at least one open extruded profile end.
  • the extruded profile element and the at least one end cap are formed such that the end cap is positively locatable on the at least one open extruded profile end, which enables a particularly uniform Erschei ⁇ pearance of the lamp body.
  • the at least one end cap having at least one coupling element, by means of which the end is ⁇ cap on the extruded profile member fastened.
  • 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 they can be pressed against the inner surfaces of the longitudinal side elements in ⁇ example, when placing the end cap on an open strand profile end, so that the attachment is accomplished by the frictional press connection.
  • the end cap and / or only the Kopp ⁇ ment elements can be, for example, from a ⁇ at least partially elastic material.
  • the Kopp- coupling members as a screw connection, in particular conceivable Zvi ⁇ rule of the end cap and the top of Strangprofilele ⁇ ments or the upper side of the light exit element of the extruded profile element.
  • LEDs on the light exit element of the extruded profile element in the area of the Be ⁇ opening of the light exit element are such reasonable arranged that by the LEDs in the direction of the light from ⁇ passage direction can be emitted.
  • the extruded profile element can have 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 comprise at least Introductio ⁇ approximately element by means of which an inserted guide ⁇ te between two guide rails of the extruded profile element printed circuit board is at least partly coverable. Since introduced in the guide rails printed circuit boards, in particular LED-PCBs for indirect lighting can also have from the LEDs, various components such as a connector, elements can be obtained by the guide element in a very advantageous manner a cover sol rather are provided which do not view ⁇ should be bar or for protection, such as pollution.
  • the guide elements can also serve the positioning of the circuit boards.
  • the method according to the invention for producing a luminaire body comprises the steps: Extruding an extruded profile element with a first longitudinal extent in a longitudinal direction, with a light exit element and two at least partially along the longitudinal direction opposite and opposite to a light ⁇ exit direction arranged on the light exit element longitudinal side elements with the first longitudinal extension in the longitudinal direction, wherein the light exit element the lamp body at least partially in the light exit direction is limited, wherein the longitudinal side elements at least partially laterally delimit the lamp body along the longitudinal extension direction;
  • the method comprises the further step before arranging the end cap:
  • the extruded profile ends can likewise by means frae ⁇ sen or otherwise processed, for example, the corners of the light exit element may be rounded or filende the light exit element can be varied in other ways in shape on Strangpro-. Furthermore, the extruded profile element in the connection, be coated or into ⁇ special about removing parts or after the milling powder-coated steel, the tool marks are hidden.
  • 1a is a schematic and perspective Unteran ⁇ view of an extruded profile element of a luminous body according to an embodiment of the invention
  • Fig. Lb is a schematic profile representation of a
  • Fig. Lc is a schematic and perspective top ⁇ view of an extruded profile element of a luminaire ⁇ ten Economicss according to an embodiment of the invention
  • Figure 2 is a schematic and perspective top ⁇ view of an extruded profile element of a luminaire ⁇ ten Economicss with rounded corners according to an embodiment of the invention.
  • FIG. 3a shows a schematic representation of an end cap of a lamp body in a first perspec tive ⁇ according to an embodiment of OF INVENTION ⁇ dung;
  • Figure 3b is a schematic representation of an end cap of a lamp body in a second perspectives tive according to an embodiment of OF INVENTION ⁇ dung.
  • FIG. 4a shows a schematic representation of a lamp body with an extruded profile element and an end cap which can be arranged thereon according to an embodiment of the invention
  • FIG. 4b is a schematic representation of a luminaire ⁇ body with an extruded profile element and a arranged thereon end cap according to an embodiment of the invention.
  • Fig. 5 is a schematic representation of a for a
  • Ceiling light designed lamp body with a suspension according to an embodiment ⁇ example of the invention.
  • Fig. La shows a schematic and perspective Un ⁇ teransicht an extruded profiled element 12 of a lighting ⁇ 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.
  • longitudinal side elements 18, which laterally delimit the lamp body 10 are arranged in the longitudinal extension direction of the extruded profile element 12.
  • the extruded profile element 12 can be made of aluminum. Aluminum has good réelleleitfä ⁇ capability, high stability, even at low overall height of the lamp body 10, and is also relatively kos ⁇ -effectively.
  • the extruded profile element 12 can be manufactured by means of extrusion processes.
  • Fig. Lb 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. ment 14 and longitudinal side members 18.
  • the Lijnsstenele ⁇ elements 18 can thereby also, as shown here, cut in cross ⁇ be formed bent and thus form part of a cover member of the lamp body 10 degrees.
  • the extruded profile member comprises a plurality of guide rails 12 or 20. This can be designed to guide elements 30 (see FIG. FIG.
  • the extruded profile element 12 can also be formed with a cover element 22. This can be arranged in a distance to the light output occurs ⁇ element 14, for example, as ⁇ be arranged between LEDs in the area of the light exit opening 16 of the light exit element fourteenth
  • the cover element 22 can be closed here, so contacting or einstü- be one piece formed with the longitudinal side members 18, or as shown herein, 12 horrre ⁇ CKEN only partially over the cross-section of the extruded profile element.
  • This partial execution of the cover member 22 has the advantage that are arranged upwardly radiating LEDs on the light emission element 14 Kgs ⁇ NEN, in particular opposite to the light emission of which is arranged in the region of the light exit opening 16 LEDs, to allow an indirect lighting.
  • Fig. Lc shows a schematic and perspective plan view of an extruded profile element 12 of a light body ⁇ 10 according to an embodiment of the invention.
  • the extruded profile element 12 is embodied as already described with reference to FIGS. 1 and 2. This depicting ⁇ development is now easy to see that the management L jossitateele- end 18a have ⁇ a distance to the extruded profile end 12a. The same goes for everyone else, of course arranged on the extruded profile element 12 and einstü ⁇ ckig formed with this elements such as the guide rails 20 and the cover member 22.
  • This shortened ⁇ education of the longitudinal side members 18, as well as all the other on the light exit element 14 of the extruded ⁇ elements 12 arranged elements can thereby also be realized by a milling operation, in particular after the extrusion of the extruded profile element.
  • the ⁇ se formation of the extruded profile element 12 allows an arrangement of an end cap 26 at 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 longitudinal side element ends 18.
  • the light outlet element 14 in the region of the extruded profile end 12 a can be configured in its shape, as desired for example, with rounded corners 24, as shown in Fig. 2.
  • 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 a Endkap ⁇ pe 26 of a lamp body 10 in a first Perspecti ⁇ ve 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 in an arrangement on an extruded profile element 12 as shown in FIG. 2 positively, in particular with the Lichtaus ⁇ tread 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 includes still Füh ⁇ guide elements 30 which are formed flat and a ⁇ can be guided in the guide rails 20 of the extruded profile element 12th
  • FIG. 3b shows the end cap 26 shown in Fig. 3a he ⁇ neut from a second perspective.
  • Fig. 4a shows a schematic representation of a luminaire ten Economicss 10 with an extruded profile member 12 and can be disposed thereon the end cap 26 in accordance with an execution ⁇ example 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 may extend to supply the LEDs, and in particular around the guide rails ⁇ can be led around the twentieth
  • FIG. 4b shows a schematic representation of a luminaire ⁇ ten Economicss 10 as shown in Fig. 4 only with the extruded profile is arranged on the end cap 12 ⁇ element 26. In particular, this can be obtained by the existing coupling elements 28 and / or Guide elements 30 are simply inserted into the extruded profile element 12.
  • Fig. 5 shows a schematic representation of a designed for a ceiling light fixture 10 with a suspension 36 according to an embodiment of the inven ⁇ tion.

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

Abstract

Lighting fixture (10) having a extruded profile element (12) with a first longitudinal extent which comprises a light outlet element (14) with a light outlet opening (16) arranged therein. The extruded profile element (12) comprises two longitudinal side elements (18) opposite one another along the longitudinal extent direction and arranged opposite the light outlet direction on the light outlet element (14) with a second longitudinal extent, which at least partially delimit the lighting fixture (10) laterally along the longitudinal extent direction. The extruded profile element (12) comprises at least one open profile end (12a), and the lighting fixture (10) at least one end cap (26), which can be arranged on at least one open profile end (12a) of the extruded profile element (12). The longitudinal side elements (18) each comprise at least one longitudinal side element end (18a), wherein the longitudinal side elements (18) are arranged on the light outlet element (14) in such a manner that the longitudinal side element ends (18a) are each at a distance from the profile end (12a) so that the end cap (26) can be arranged on the longitudinal side element ends (18a) and on the light outlet element (14) making contact.

Description

Beschreibung  description
Leuchtenkörper und Verfahren zum Herstellen eines Leuchtenkörpers Luminaire body and method for producing a lamp body
Technisches Gebiet Technical area
Die Erfindung geht aus von einem Leuchtenkörper nach dem Oberbegriff des Patentanspruchs 1 und einem Verfahren zum Herstellen eines Leuchtenkörpers. The invention relates to a lamp body according to the preamble of patent claim 1 and a method for producing a lamp body.
Stand der Technik State of the art
Aus dem Stand der Technik sind Leuchtenkörper bekannt, die aus einem stranggepressten Profil gefertigt sind, da Extrusionsverfahren besonders kostengünstig sind und be¬ sonders geeignet für die Herstellung von Leuchten mit ei- ner großen Längserstreckung, wie beispielsweise Büroleuchten. Diese Strangprofile werden üblicherweise an den durch das Herstellungsverfahren bedingt offenen Seiten mit Endkappen abgedeckt. From the prior art lamp body are known, which are made of an extruded profile, since extrusion methods are particularly inexpensive and be ¬ Sonders suitable for the manufacture of lamps with egg ner large longitudinal extension, such as Office Lighting. These extruded profiles are usually covered on the conditionally open sides by the manufacturing process with end caps.
Dadurch, dass diese Endkappen als separate Elemente auf die Enden des Spritzgussprofils aufgesetzt werden, sind Luftspalte bzw. Trennfugen zwischen den Endkappen und dem Spritzgussprofil vorhanden, aus denen ungewollt Licht austreten kann, was sich störend auf den optischen Eindruck einer solchen Leuchte auswirkt. The fact that these end caps are placed as separate elements on the ends of the injection molding, air gaps or joints between the end caps and the injection molding profile are present, from which unintentionally light can escape, which interferes with the visual impression of such a lamp.
Darstellung der Erfindung Die Aufgabe der vorliegenden Erfindung ist es daher, einen Leuchtenkörper bereitzustellen, welcher auf kostengünstige Weise herstellbar ist und keine den optischen Eindruck mindernde Trennfugen aufweist, sowie ein kosten- günstige Verfahren zum Herstellen eines derartigen Leuchtenkörpers bereitzustellen. DESCRIPTION OF THE INVENTION The object of the present invention is therefore to provide a luminaire body which can be produced in a cost-effective manner and has no parting lines which reduce the visual impression, and a costly provide favorable method for producing such a lamp body.
Diese Aufgabe wird gelöst durch einen Leuchtenkörper mit den Merkmalen des Patentanspruchs 1 und ein Verfahren mit den Merkmalen des Patentanspruchs 10. This object is achieved by a lamp body having the features of patent claim 1 and a method having the features of patent claim 10.
Besonders vorteilhafte Ausgestaltungen finden sich in den abhängigen Ansprüchen. Particularly advantageous embodiments can be found in the dependent claims.
Der erfindungsgemäße Leuchtenkörper umfasst ein Strangprofilelement mit einer ersten Längserstreckung in einer Längserstreckungsrichtung, wobei das Strangprofilelement ein Lichtaustrittselement mit mindestens einer darin an¬ geordneten Lichtaustrittsöffnung aufweist. Das Lichtaustrittselement begrenzt dabei den Leuchtenkörper zumindest teilweise in einer Lichtaustrittsrichtung. Das Strangpro- filelement umfasst zwei zumindest teilweise entlang der Längserstreckungsrichtung sich gegenüberliegend und entgegen der Lichtaustrittsrichtung am Lichtaustrittselement angeordnete Längsseitenelemente mit einer zweiten Längs¬ erstreckung in der Längserstreckungsrichtung. Diese Längsseitenelemente begrenzen den Leuchtenkörper entlang der Längserstreckungsrichtung zumindest teilweise seitlich, wobei das Strangprofilelement mindestens ein offe¬ nes Strangprofilende aufweist, das das Strangprofilele¬ ment in seiner ersten Längserstreckung begrenzt. Des Wei- teren umfasst der Leuchtenkörper mindestens eine Endkap¬ pe, die an dem mindestens einen offenen Strangprofilende des Strangprofilelements anordenbar ist. Die Längsseiten¬ elemente weisen jeweils mindestens ein Längsseitenelemen- tende auf, welches das jeweilige Längsseitenelement in seiner zweiten Längserstreckung begrenzt, wobei die Längsseitenelemente derart am Lichtaustrittselement ange¬ ordnet sind, dass die Längsseitenelementenden jeweils ei¬ nen Abstand zum Strangprofilende aufweisen, so dass die Endkappe kontaktierend an den Längsseitenelementenden und am Lichtaustrittselement anordenbar ist. 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 two Strangpro- filelement comprises at least partially along the longitudinal extension direction opposite to and against the light exit direction at the light exit element arranged longitudinal side members having a second longitudinal ¬ extension in the longitudinal direction. These longitudinal side members to limit the lamp body along the longitudinal direction at least partially laterally, wherein the extruded profile member has at least one extruded profile offe ¬ nes end defining the Strangprofilele ¬ element in its first longitudinal extent. The direct WEI comprises the lamp body at least one Endkap ¬ pe, which can be arranged on the at least one open end of the extruded profile extruded profile element. The longitudinal side ¬ elements each have at least one Längsseitenelemen- tende, which limits the respective longitudinal side member in its second longitudinal extent, wherein the Longitudinal side elements are arranged in such a way ¬ at the light exit element, that the longitudinal side member ends each having ei ¬ NEN distance from the end of the extruded profile, so that the end cap at the longitudinal side member and ends at the light exit element is contactingly arranged.
So wird es auf sehr vorteilhafte Weise ermöglicht, dass sich Trennfugen, insbesondere zwischen der Endkappe und dem Strangprofilelement, nicht im Sichtfeld eines Benut¬ zers befinden, welches üblicherweise bei direkter Be- leuchtung durch das Lichtaustrittselement in Lichtaus¬ trittsrichtung eines Leuchtenkörpers bereitgestellt ist. Dies hat zudem den Vorteil, dass der Leuchtenkörper sehr einfach und kostengünstig als Strangprofil mittels Extru- sion gefertigt werden kann und zur Abdeckung der offenen Strangprofilenden separate Endkappen verwendet werden können, ohne dabei optisch störende Trennfugen in Kauf nehmen zu müssen. Denn durch die erfindungsgemäße Ausbil¬ dung des Strangprofilelements und die dadurch bereitge¬ stellte Anordnungsmöglichkeit der Endkappe wird es erst ermöglicht, dass sich die Kontaktbereiche zwischen der Endkappe und dem Strangprofilelement nicht im Sichtbe¬ reich eines Benutzers befinden. Die Unterseite des Leuch¬ tenkörpers wird so allein durch das Lichtaustrittselement des Strangprofilelements gebildet. Als Unterseite wird hierbei insbesondere das Lichtaustrittselement in Licht¬ austrittsrichtung bezeichnet, ohne dass darunter verstanden werden soll, dass das Lichtaustrittselement „unten" angeordnet sein muss. Der Leuchtenköper kann nicht nur für Deckenleuchten verwendet werden, sonder kann bei- spielsweise auch an einer Wand oder in anderer Positio¬ nierung angeordnet werden, so dass die Unterseite des Leuchtenkörpers bei einer räumlichen Anordnung nicht zwingend unten ist. Die Endkappe, insbesondere deren Un¬ terseite, ist also so an den offenen Enden des Strangpro¬ filelements anordenbar, dass diese sich oberhalb des Lichtaustrittselements befindet, und somit von unten auch kein Luftspalt oder eine Trennfuge, aus der unerwünschter Weise Licht austreten kann, zu sehen ist. Somit kann die sichtbare untere Außenfläche des Leuchtenkörpers als durchgängige Einheit realisiert werden. Die Lichtaustrittsöffnung des Lichtaustrittselements des Strangprofilelements kann dabei beispielsweise durch ei¬ nen Fräsvorgang in das Lichtaustrittselement eingebracht werden. In diesem Bearbeitungsschritt können auch die Enden des Strangprofilelements so bearbeitet werden, dass die Endkappen an der unteren Sichtfläche nicht sichtbar sind. So ist auch die Herstellung eines solchen Leuchtenkörpers sehr kostengünstig und einfach und es wird gleichzeitig eine fugenlose untere Außenfläche durch den erfindungsgemäßen Leuchtenkörper bereitgestellt. Bei einer Ausgestaltung der Erfindung bilden das Strangprofilende und zumindest ein Teil der am offenen Strang¬ profilende angeordneten Endkappe eine Stirnseite des Leuchtenkörpers. Bearbeitungsspuren, wie beispielsweise Fräßkanten am Strangprofilende, sofern vorhanden, können durch eine Beschichtung, insbesondere Pulver, kaschiert werden. So kann es ermöglicht werden, dass an der Licht¬ austrittsseite keine Trennfugen vorhanden sind, die den optischen Eindruck mindern, und dass gleichzeitig auch die Stirnseite des Leuchtenkörpers, sofern sie sich in einem Sichtfeld eines Benutzers befindet, einen geschlos¬ senes und einheitliches Erscheinungsbild liefert. Bei einer vorteilhaften Ausgestaltung der Erfindung ist der jeweilige Abstand der Längsseitenelementenden zum Strangprofilende mindestens so groß wie eine Dicke der Endkappe in einem jeweiligen Kontaktbereich, in welchem die Endkappe mit den jeweiligen Längsseitenelementenden kontaktierbar ist, wobei die Dicke der Endkappe eine Ab¬ messung in der Längserstreckungsrichtung des Strangprofilelements bei einem Anordnen der Endkappe an dem mindestens einen offenen Strangprofilende ist. So kann es auf besonders vorteilhafte Weise bewerkstelligt werden, dass nicht nur keine Fugen von unten sichtbar sind, sondern auch keine überstehenden Teile der Endkappen. Thus, it is possible in a very advantageous manner that parting lines, in particular between the end cap and the extruded profile element, are not in the field of view of Benut ¬ zers, which is usually provided in direct light through the light exit element in Lichtaus ¬ direction of passage of a lamp body. This also has the advantage that the luminaire body can be manufactured very easily and cost-effectively as extruded profile by means of extrusion, and separate end caps can be used to cover the open extruded profile ends, without having to accept optically disturbing parting lines. Because the inventive Ausbil ¬-making of the extruded profile element and the resulting bereitge ¬ presented possible arrangement of the end cap, it is made possible that the areas of contact between the end cap and the extruded profile element not in Sichtbe ¬ rich a user. The underside of the luminaire ¬ tenkörpers is formed simply by the light emission element of the extruded profile element. In particular, the light exit element in light ¬ outlet direction is as a base here refers, to be without understood to mean that the light exit element must be arranged "below". The lamp body can be used not only for ceiling lights, special can examples play, also on a wall or be arranged in another position ¬ tion, so that the underside of the Luminaire body in a spatial arrangement is not necessarily down. The end cap, particularly its Un ¬ underside, that is at the open ends of the Strangpro ¬ filelements can be arranged that this is located above the light-emitting element, and thus no air gap or separating gap, may leak light from below from the undesired manner to see is. Thus, 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 profiled element can thereby be introduced, for example by ei ¬ NEN milling operation in the light exit element. In this processing step, the ends of the extruded profile element can be edited so that the end caps are not visible on the lower viewing surface. Thus, the production of such a lamp body is very inexpensive and easy and it is at the same time a jointless lower outer surface provided by the lamp body according to the invention. In one embodiment of the invention, the extruded profile end and at least part of the open strand ¬ profiled arranged end cap form an end face of the lamp body. Processing marks, such as milling edges on the extruded profile end, if present, can be laminated by a coating, in particular powder. Thus, it can be made possible that at the light exit ¬ side no joints are present that reduce the visual impression, and that at the same time the front of the lamp body, if it is located in a field of view of a user, a closed ¬ senes and uniform appearance provides , In an advantageous embodiment of the invention, 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 contacted with the respective longitudinal side element ends, wherein the thickness of the end cap from a measurement in the direction of extent ¬ of the extruded profile element when arranging the end cap on the at least one open extruded profile end. Thus, it can be accomplished in a particularly advantageous manner that not only no joints are visible from below, but also no protruding parts of the end caps.
Bei einer weiteren vorteilhaften Ausgestaltung der Erfindung sind das Strangprofilelement und die mindestens eine Endkappe derart ausgebildet, dass die Endkappe an dem mindestens einen offenen Strangprofilende formschlüssig anordenbar ist, was ein besonders einheitliches Erschei¬ nungsbild des Leuchtenkörpers ermöglicht. In a further advantageous embodiment of the invention, the extruded profile element and the at least one end cap are formed such that the end cap is positively locatable on the at least one open extruded profile end, which enables a particularly uniform Erschei ¬ pearance of the lamp body.
Des Weiteren kann die mindestens eine Endkappe mindestens ein Kopplungselement aufweisen, mittels welchem die End¬ kappe am Strangprofilelement befestigbar ist. Dieses Kopplungselement kann dabei so ausgebildet sein, dass es in das Strangprofilelement einpressbar ist. Dafür können auch mehrere Kopplungselemente vorgesehen sein, so dass diese so an der Endkappe angeordnet sind, dass diese bei¬ spielsweise beim Anordnen der Endkappe an einem offenen Strangprofilende gegen die Innenflächen der Längsseitenelemente pressbar sind, so dass die Befestigung durch die reibschlüssige Pressverbindung bewerkstellig wird. Durch eine derartige Pressverbindung werden zudem mögliche Fu¬ gen zwischen der Endkappe und dem Strangprofilelement weiter reduziert, die Endkappe und/oder nur die Kopp¬ lungselemente können dabei beispielsweise aus einem zu¬ mindest zum Teil elastischem Material sein. Alternativ oder zusätzlich ist aber auch eine Ausbildung der Kopp- lungselemente als Schraubverbindung, insbesondere zwi¬ schen der Endkappe und der Oberseite des Strangprofilele¬ ments bzw. der Oberseite des Lichtaustrittselements des Strangprofilelements denkbar. Auch diese Schraubverbindungen sind von unten nicht sichtbar und mindern somit nicht das Erscheinungsbild des Leuchtenkörpers bzw. der Leuchte . Furthermore, the at least one end cap having at least one coupling element, by means of which the end is ¬ cap on the extruded profile member fastened. This coupling element can be designed so that it can be pressed into the extruded profile element. For this purpose, a plurality of coupling elements may be provided, so that they are arranged on the end cap, that they can be pressed against the inner surfaces of the longitudinal side elements in ¬ example, when placing the end cap on an open strand profile end, so that the attachment is accomplished by the frictional press connection. By such a press connection also possible Fu ¬ conditions between the end cap and the extruded profile element further reduced, the end cap and / or only the Kopp ¬ ment elements can be, for example, from a ¬ at least partially elastic material. Alternatively or additionally, but is also an embodiment of the Kopp- coupling members as a screw connection, in particular conceivable Zvi ¬ rule of the end cap and the top of Strangprofilele ¬ ments or the upper side of the light exit element of the extruded profile element. These screw connections are not visible from below and thus do not reduce the appearance of the lamp body or the lamp.
Bei einer weiteren Ausgestaltung der Erfindung sind LEDs am Lichtaustrittselement des Strangprofilelements im Be¬ reich der Öffnung des Lichtaustrittselements derart ange- ordnet, dass von den LEDs Licht in Richtung der Lichtaus¬ trittsrichtung abstrahlbar ist. Gerade die Verwendung von LEDs als Leuchtmittel ermöglicht eine besonders flache und kompakte Bauweise einer solchen Leuchte bzw. Leuch¬ tenkörpers . Darüber hinaus kann das Strangprofilelement Führungs¬ schienen aufweisen, welche in Längserstreckungsrichtung und am Lichtaustrittselement entgegengesetzt zur Licht¬ austrittsrichtung angeordnet sind. Diese Führungsschienen können beispielsweise zur Aufnahme von LED-Leiterplatten ausgebildet sein, was eine sehr einfache und vorteilhafte Möglichkeit zur Anordnung von LEDs am Leuchtenkörper darstellt. Weiterhin können die Führungsschienen auch zum Verpressen der Kopplungselemente der Endkappe mit dem Strangprofilelement genutzt werden. Des Weiteren kann die Endkappe auch mindestens ein Füh¬ rungselement aufweisen, mittels welchem eine zwischen zwei Führungsschienen des Strangprofilelements eingeführ¬ te Leiterplatte zumindest zum Teil abdeckbar ist. Da in die Führungsschienen eingeführte Leiterplatten, insbesondere LED-Leiterplatten zur indirekten Beleuchtung auch von den LEDs verschiedene Komponenten, wie beispielsweise einen Stecker, aufweisen können, kann durch das Führungselement auf sehr vorteilhafte Weise eine Abdeckung sol- eher Elemente bereitgestellt werden, welche nicht sicht¬ bar sein sollen oder auch zum Schutz, wie beispielsweise vor Verschmutzung. Darüber hinaus können die Führungselemente auch der Positionierung der Leiterplatten dienen. In a further embodiment of the invention LEDs on the light exit element of the extruded profile element in the area of the Be ¬ opening of the light exit element are such reasonable arranged that by the LEDs in the direction of the light from ¬ passage direction can be emitted. Especially the use of LEDs as a light source allows a particularly flat and compact design of such a luminaire or Leuch ¬ tenkörpers. In addition, the extruded profile element can have 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. Furthermore, the guide rails can also be used for pressing the coupling elements of the end cap with the extruded profile element. Furthermore, the end cap can also comprise at least Introductio ¬ approximately element by means of which an inserted guide ¬ te between two guide rails of the extruded profile element printed circuit board is at least partly coverable. Since introduced in the guide rails printed circuit boards, in particular LED-PCBs for indirect lighting can also have from the LEDs, various components such as a connector, elements can be obtained by the guide element in a very advantageous manner a cover sol rather are provided which do not view ¬ should be bar or for protection, such as pollution. In addition, the guide elements can also serve the positioning of the circuit boards.
Bei einer weiteren vorteilhaften Ausgestaltung der Erfin- dung ist zwischen zwei Führungsschienen mindestens eine Leiterplatte mit darauf angeordneten LEDs eingeführt, wo¬ bei die LEDs derart auf der Leiterplatte angeordnet sind, dass von den LEDs Licht in einer Richtung entgegengesetzt zur Lichtaustrittsrichtung abstrahlbar ist. Somit wird auch hier ein besonders einfaches Anordnen von LEDs auf dem Strangprofilelement ermöglicht, wobei durch die An¬ ordnung der LEDs entgegengesetzt zur Lichtaustrittsrichtung auf sehr vorteilhafte Weise eine indirekte Beleuch¬ tung bereitgestellt wird. Darüber hinaus kann die Verdrahtung zur Versorgung der LEDs auf besonders platzsparende Weise unter den Endkap¬ pen verlaufen. Dung, in a further advantageous embodiment of the inventions between two guide rails is inserted at least a circuit board having arranged thereon LEDs are where located at the LEDs in such a way on the circuit board ¬ that is opposite from the LEDs in a direction towards the light exit direction can be emitted. Thus, a particularly simple arrangement of LEDs on the extruded profile element is also made possible here, wherein by the An ¬ order of the LEDs opposite to the light exit direction in a very advantageous manner an indirect lighting ¬ tion is provided. In addition, the wiring for supplying the LEDs can run in a particularly space-saving manner under the Endkap ¬ pen.
Das erfindungsgemäße Verfahren zum Herstellen eines Leuchtenkörpers umfasst die Schritte: Strangpressen eines Strangprofilelements mit einer ersten Längserstreckung in einer Längserstreckungsrichtung, mit einem Lichtaustrittselement und mit zwei zumindest teilweise entlang der Längserstreckungsrichtung sich gegenüberliegend und entgegen einer Licht¬ austrittsrichtung am Lichtaustrittselement angeordnete Längsseitenelemente mit der ersten Längserstreckung in der Längserstreckungsrichtung, wobei das Lichtaustrittselement den Leuchtenkörper zumindest teilweise in der Lichtaustrittsrichtung begrenzt, wobei die Längsseitenelemente den Leuchtenkörper entlang der Längserstreckungsrichtung zumindest teilweise seitlich begrenzen; The method according to the invention for producing a luminaire body comprises the steps: Extruding an extruded profile element with a first longitudinal extent in a longitudinal direction, with a light exit element and two at least partially along the longitudinal direction opposite and opposite to a light ¬ exit direction arranged on the light exit element longitudinal side elements with the first longitudinal extension in the longitudinal direction, wherein the light exit element the lamp body at least partially in the light exit direction is limited, wherein the longitudinal side elements at least partially laterally delimit the lamp body along the longitudinal extension direction;
Entfernen mindestens eines Teils des Lichtaustritts¬ elements des Strangprofilelements, so dass mindestens eine Öffnung im Lichtaustrittselement entsteht; Removing at least a portion of the light exit ¬ elements of the extruded profile element, so that at least one opening in the light exit element is formed;
Entfernen eines Teils der Längsseitenelemente an min¬ destens einem offenen Strangprofilende, so dass diese jeweils eine zweite Längserstreckung aufweisen, welche durch jeweils ein Längsseitenelementende begrenzt ist, und so dass die Längsseitenelementenden jeweils einen Abstand zum Strangprofilende aufweisen; Removing a portion of the longitudinal side members at min ¬ least an open extruded profile end, so that they each have a second longitudinal length which is delimited by in each case a longitudinal side member end, and so that the longitudinal side member ends in each case have a distance from the extruded section end;
Anordnen einer Endkappe am offenen Strangprofilende derart, dass diese das Lichtaustrittselement und die Längsseitenelementenden kontaktiert . Arranging an end cap on the open extruded profile end such that it contacts the light exit element and the longitudinal side element ends.
Das Entfernen eines Teils der Lichtaustrittsfläche und eines Teils der Längsseitenelemente erfolgt dabei bevor¬ zugt mittels Fräsen. Bei einer vorteilhaften Ausgestaltung der Erfindung um- fasst dass Verfahren vor dem Anordnen der Endkappe den weiteren Schritt: The removal of a part of the light exit surface and a part of the longitudinal side elements is carried out before ¬ by means of milling. In an advantageous embodiment of the invention, the method comprises the further step before arranging the end cap:
Entfernen eines Teils des Lichtaustrittselements am Strangprofilende entsprechend einer vorgebbaren Form¬ gebung einer Kontur des Strangprofilendes. Removing a portion of the light exit element at the extruded profile end according to a predeterminable ¬ shape of a contour of the extruded profile end.
Die Strangprofilenden können dabei ebenfalls mittels Frä¬ sen oder anderweitig bearbeitet werden, beispielsweise können die Ecken des Lichtaustrittselements am Strangpro- filende abgerundet werden oder das Lichtaustrittselement in anderer Weise in ihrer Form variiert werden. Des Weiteren kann der das Strangprofilelement im Anschluss, ins¬ besondere an das Entfernen von Teilen bzw. im Anschluss an die Fräsvorgänge, so beschichtet bzw. bepulvert wer- den, dass die Bearbeitungsspuren verdeckt werden. The extruded profile ends can likewise by means frae ¬ sen or otherwise processed, for example, the corners of the light exit element may be rounded or filende the light exit element can be varied in other ways in shape on Strangpro-. Furthermore, the the extruded profile element in the connection, be coated or into ¬ special about removing parts or after the milling powder-coated steel, the tool marks are hidden.
Darüber hinaus gelten alle für den erfindungsgemäßen Leuchtenkörper genannten Ausgestaltungen, Merkmale und Vorteile in gleicher Weise, soweit anwendbar, auch für das erfindungsgemäße Verfahren. Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus den Ansprüchen, der nachfolgenden Beschreibung bevorzugter Ausführungsformen sowie anhand der Zeichnungen . In addition, all embodiments, features and advantages mentioned for the luminaire body according to the invention apply in the same way, as far as applicable, also for the method according to the invention. Further advantages, features and details of the invention will become apparent from the claims, the following description of preferred embodiments and from the drawings.
Kurze Beschreibung der Zeichnungen Brief description of the drawings
Im Folgenden soll die Erfindung anhand von Ausführungs- beispielen näher erläutert werden. Die Figuren zeigen: In the following, the invention will be explained in more detail by means of exemplary embodiments. The figures show:
Fig. la eine schematische und perspektivische Unteran¬ sicht eines Strangprofilelements eines Leuch- tenkörpers gemäß einem Ausführungsbeispiel der Erfindung; 1a is a schematic and perspective Unteran ¬ view of an extruded profile element of a luminous body according to an embodiment of the invention;
Fig. lb eine schematische Profildarstellung eines Fig. Lb is a schematic profile representation of a
Strangprofilelements eines Leuchtenkörpers ge¬ mäß einem Ausführungsbeispiel der Erfindung; Extruded profile element of a lamp body ge ¬ according to an embodiment of the invention;
Fig. lc eine schematische und perspektivische Drauf¬ sicht auf ein Strangprofilelement eines Leuch¬ tenkörpers gemäß einem Ausführungsbeispiel der Erfindung; Fig. 2 eine schematische und perspektivische Drauf¬ sicht auf ein Strangprofilelement eines Leuch¬ tenkörpers mit abgerundeten Ecken gemäß einem Ausführungsbeispiel der Erfindung; Fig. Lc is a schematic and perspective top ¬ view of an extruded profile element of a luminaire ¬ tenkörpers according to an embodiment of the invention; Figure 2 is a schematic and perspective top ¬ view of an extruded profile element of a luminaire ¬ tenkörpers with rounded corners according to an embodiment of the invention.
Fig. 3a eine schematische Darstellung einer Endkappe eines Leuchtenkörpers in einer ersten Perspek¬ tive gemäß einem Ausführungsbeispiel der Erfin¬ dung; FIG. 3a shows a schematic representation of an end cap of a lamp body in a first perspec tive ¬ according to an embodiment of OF INVENTION ¬ dung;
Fig. 3b eine schematische Darstellung einer Endkappe eines Leuchtenkörpers in einer zweiten Perspek- tive gemäß einem Ausführungsbeispiel der Erfin¬ dung; Figure 3b is a schematic representation of an end cap of a lamp body in a second perspectives tive according to an embodiment of OF INVENTION ¬ dung.
Fig. 4a eine schematische Darstellung eines Leuchtenkörpers mit einem Strangprofilelement und einer daran anordenbaren Endkappe gemäß einem Ausfüh- rungsbeispiel der Erfindung; 4a shows a schematic representation of a lamp body with an extruded profile element and an end cap which can be arranged thereon according to an embodiment of the invention;
Fig. 4b eine schematische Darstellung eines Leuchten¬ körpers mit einem Strangprofilelement und einer daran angeordneten Endkappe gemäß einem Ausführungsbeispiel der Erfindung; und 4b is a schematic representation of a luminaire ¬ body with an extruded profile element and a arranged thereon end cap according to an embodiment of the invention; and
Fig. 5 eine schematische Darstellung eines für eine Fig. 5 is a schematic representation of a for a
Deckenleuchte ausgestalteten Leuchtenkörpers mit einer Aufhängung gemäß einem Ausführungs¬ beispiel der Erfindung. Ceiling light designed lamp body with a suspension according to an embodiment ¬ example of the invention.
Bevorzugte Ausführung der Erfindung Preferred embodiment of the invention
Fig. la zeigt eine schematische und perspektivische Un¬ teransicht eines Strangprofilelements 12 eines Leuchten¬ körpers 10 (vgl. Fig. 4a) gemäß einem Ausführungsbeispiel der Erfindung. Das Strangprofilelement 12 weist dabei ein Lichtaustrittselement 14 mit einer Lichtaustrittsöffnung 16 auf. Darüber hinaus sind in der Längserstreckungsrich- tung des Strangprofilelements 12 Längsseitenelemente 18 angeordnet, welche den Leuchtenkörper 10 seitlich begren- zen. Das Strangprofilelement 12 kann dabei aus Aluminium gefertigt sein. Aluminium besitzt eine gute Wärmeleitfä¬ higkeit, eine hohe Stabilität, auch bei geringer Bauhöhe des Leuchtenkörpers 10, und ist zudem noch relativ kos¬ tengünstig. Das Strangprofilelement 12 kann dabei mittels Extrusionsverfahren gefertigt sein. Die Aussparung für die Lichtaustrittsöffnung 16 kann anschließend durch einen Fräsvorgang eingebracht werden. Dadurch wird ein fugenloser Grundkörper für den Leuchtenkörper 10 bereitgestellt. Fig. lb zeigt eine schematische Profildarstellung eines Strangprofilelements 12 eines Leuchtenkörpers 10 gemäß einem Ausführungsbeispiel der Erfindung. Auch hier um- fasst das Strangprofilelement 12 ein Lichtaustrittsele- ment 14 und Längsseitenelemente 18. Die Längsseitenele¬ mente 18 könne dabei auch, wie hier dargestellt, im Quer¬ schnitt angewinkelt ausgebildet sein und somit einen Teil eines Deckelements des Leuchtenkörpers 10 bilden. Darüber hinaus umfasst das Strangprofilelement 12 noch mehrere Führungsschienen 20. Diese können dazu ausgebildet sein, Führungselemente 30 (vgl. Fig. 3a) einer Endkappe aufzu¬ nehmen oder auch LED-Leiterplatten. Des Weiteren kann das Strangprofilelement 12 auch mit einem Deckelement 22 aus- gebildet sein. Dieses kann in einem Abstand zum Lichtaus¬ trittselement 14 angeordnet sein, um beispielsweise da¬ zwischen LEDs im Bereich der Lichtaustrittsöffnung 16 des Lichtaustrittselements 14 anzuordnen. Das Deckelement 22 kann dabei geschlossen, also kontaktierend bzw. einstü- ckig mit den Längsseitenelementen 18 ausgebildet sein, oder auch, wie hier dargestellt, sich nur bereichsweise über den Querschnitt des Strangprofilelements 12 erstre¬ cken. Diese nur teilweise Ausführung des Deckelements 22 hat den Vorteil, dass auch nach oben abstrahlende LEDs auf dem Lichtaustrittselement 14 angeordnet werden kön¬ nen, insbesondere entgegen der Lichtabstrahlrichtung der im Bereich der Lichtaustrittsöffnung 16 angeordneten LEDs, um eine indirekte Beleuchtung zu ermöglichen. Fig. La shows a schematic and perspective Un ¬ teransicht an extruded profiled element 12 of a lighting ¬ 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. In addition, longitudinal side elements 18, which laterally delimit the lamp body 10, are arranged in the longitudinal extension direction of the extruded profile element 12. The extruded profile element 12 can be made of aluminum. Aluminum has good Wärmeleitfä ¬ capability, high stability, even at low overall height of the lamp body 10, and is also relatively kos ¬-effectively. 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. As a result, a seamless base body for the lamp body 10 is provided. Fig. Lb shows a schematic profile representation of an extruded profile element 12 of a lamp body 10 according to an embodiment of the invention. Here, too, the extruded profile element 12 comprises a light exit element. ment 14 and longitudinal side members 18. The Längsseitenele ¬ elements 18 can thereby also, as shown here, cut in cross ¬ be formed bent and thus form part of a cover member of the lamp body 10 degrees. In addition, the extruded profile member comprises a plurality of guide rails 12 or 20. This can be designed to guide elements 30 (see FIG. FIG. 3a) of an end cap aufzu ¬ take or LED-PCB. Furthermore, the extruded profile element 12 can also be formed with a cover element 22. This can be arranged in a distance to the light output occurs ¬ element 14, for example, as ¬ be arranged between LEDs in the area of the light exit opening 16 of the light exit element fourteenth The cover element 22 can be closed here, so contacting or einstü- be one piece formed with the longitudinal side members 18, or as shown herein, 12 erstre ¬ CKEN only partially over the cross-section of the extruded profile element. This partial execution of the cover member 22 has the advantage that are arranged upwardly radiating LEDs on the light emission element 14 Kgs ¬ NEN, in particular opposite to the light emission of which is arranged in the region of the light exit opening 16 LEDs, to allow an indirect lighting.
Fig. lc zeigt eine schematische und perspektivische Draufsicht auf ein Strangprofilelement 12 eines Leuchten¬ körpers 10 gemäß einem Ausführungsbeispiel der Erfindung. Das Strangprofilelement 12 ist dabei wie zu Fig. 1 und Fig. 2 bereits beschrieben ausgeführt. In dieser Darstel¬ lung ist nun gut zu erkennen, dass die Längsseitenele- mentenden 18a einen Abstand zum Strangprofilende 12a auf¬ weisen. Das Gleiche gilt natürlich auch für alle anderen auf dem Strangprofilelement 12 angeordneten und einstü¬ ckig mit diesem ausgebildeten Elementen wie den Führungsschienen 20 und des Deckelements 22. Diese verkürzte Aus¬ bildung der Längsseitenelemente 18, sowie auch aller an- deren auf dem Lichtaustrittselement 14 des Strangprofil¬ elements 12 angeordneten Elemente kann dabei ebenfalls durch einen Fräsvorgang, insbesondere nach dem Strangpressen des Strangprofilelements, realisiert werden. Die¬ se Ausbildung des Strangprofilelements 12 ermöglicht eine Anordnung einer Endkappe 26 am Strangprofilende 12a, so dass von unten keine Trennfugen sichtbar sind und die sichtbare untere Außenfläche des Leuchtenkörpers 10 als durchgängige Einheit realisiert ist. Die Endkappe 26 kann nun so am Strangprofilelement 12 angeordnet werden, dass sie die Oberseite des Lichtaustrittselements 14 des Strangprofilelements 12 kontaktiert und gleichzeitig auch die Längsseitenelementenden 18. Des Weiteren kann das Lichtaustrittselement 14 im Bereich des Strangprofilendes 12a nach Belieben in seiner Formgebung ausgestaltet sein, wie beispielsweise mit abgerundeten Ecken 24, wie in Fig. 2 dargestellt. Die Endkappe 26 kann in ihrer Formgebung dann ebenfalls entsprechend ausgestaltet sein, so dass diese bevorzugt formschlüssig am Strangprofilelement 12 anordenbar ist. Fig. 3a zeigt eine schematische Darstellung einer Endkap¬ pe 26 eines Leuchtenkörpers 10 in einer ersten Perspekti¬ ve gemäß einem Ausführungsbeispiel der Erfindung. Die Endkappe 26 weist dabei eine Querseitenfläche 32 auf, welche einen Abschluss des Leuchtenkörpers in seiner Längserstreckung bildet. Des Weiteren weist die Endkappe 26 hier ebenfalls abgerundete Ecken 24a auf, so dass sie bei einer Anordnung an einem Strangprofilelement 12 gemäß Fig. 2 formschlüssig, insbesondere mit dessen Lichtaus¬ trittselement 14 abschließt. Als Halterung bzw. zur Be¬ festigung der Endkappe 26 am Strangprofilelement 12 um- fasst die Endkappe 26 Kopplungselemente 28, die, wie hier dargestellt, als Verbindungselemente ausgebildet sind, welche in das Strangprofilelement 12 eingepresst werden können. Darüber hinaus umfasst die Endkappe 26 noch Füh¬ rungselemente 30, welche flach ausgebildet sind und in die Führungsschienen 20 des Strangprofilelements 12 ein¬ geführt werden können. Fig. Lc shows a schematic and perspective plan view of an extruded profile element 12 of a light body ¬ 10 according to an embodiment of the invention. The extruded profile element 12 is embodied as already described with reference to FIGS. 1 and 2. This depicting ¬ development is now easy to see that the management Längsseitenele- end 18a have ¬ a distance to the extruded profile end 12a. The same goes for everyone else, of course arranged on the extruded profile element 12 and einstü ¬ ckig formed with this elements such as the guide rails 20 and the cover member 22. This shortened ¬ education of the longitudinal side members 18, as well as all the other on the light exit element 14 of the extruded ¬ elements 12 arranged elements can thereby also be realized by a milling operation, in particular after the extrusion of the extruded profile element. The ¬ se formation of the extruded profile element 12 allows an arrangement of an end cap 26 at 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 longitudinal side element ends 18. Furthermore, the light outlet element 14 in the region of the extruded profile end 12 a can be configured in its shape, as desired for example, with rounded corners 24, as shown in Fig. 2. 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 a Endkap ¬ pe 26 of a lamp body 10 in a first Perspecti ¬ ve 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. Furthermore, the end cap 26 here also has rounded corners 24a, so that they in an arrangement on an extruded profile element 12 as shown in FIG. 2 positively, in particular with the Lichtaus ¬ tread element 14 terminates. As a holder or for fastening the end cap 26 to the extruded profile element 12, 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. In addition, the end cap 26 includes still Füh ¬ guide elements 30 which are formed flat and a ¬ can be guided in the guide rails 20 of the extruded profile element 12th
Fig. 3b zeigt die in Fig. 3a dargestellte Endkappe 26 er¬ neut aus einer zweiten Perspektive. FIG. 3b shows the end cap 26 shown in Fig. 3a he ¬ neut from a second perspective.
Fig. 4a zeigt eine schematische Darstellung eines Leuch- tenkörpers 10 mit einem Strangprofilelement 12 und einer daran anordenbaren Endkappe 26 gemäß einem Ausführungs¬ beispiel der Erfindung. Die Endkappe 26 kann dabei so ausgebildet sein, dass sie Seitenflächen aufweist, welche einen Abschluss zur Querseite des Leuchtenkörpers 10 hin und nach oben hin bilden, und dass insbesondere zwischen den Enden der Führungsschienen 20 und der Querseitenfläche 32 ein Abstand ist. Durch diese Ausbildung wird ein Freiraum bzw. Hohlraum bereitgestellt, so dass in der Endkappe 26 die Verdrahtung 34 zur Versorgung der LEDs verlaufen kann und insbesondere auch um die Führungs¬ schienen 20 herumgeführt werden kann. Fig. 4a shows a schematic representation of a luminaire tenkörpers 10 with an extruded profile member 12 and can be disposed thereon the end cap 26 in accordance with an execution ¬ example 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. With this configuration, a clearance or cavity is provided, so that in the end cap 26, the wiring 34 may extend to supply the LEDs, and in particular around the guide rails ¬ can be led around the twentieth
Fig. 4b zeigt eine schematische Darstellung eines Leuch¬ tenkörpers 10 wie in Fig. 4a nur mit der am Strangprofil¬ element 12 angeordneten Endkappe 26. Insbesondere kann diese durch die vorhandenen Kopplungselemente 28 und/oder Führungselemente 30 einfach in das Strangprofilelement 12 eingeschoben werden. FIG. 4b shows a schematic representation of a luminaire ¬ tenkörpers 10 as shown in Fig. 4 only with the extruded profile is arranged on the end cap 12 ¬ element 26. In particular, this can be obtained by the existing coupling elements 28 and / or Guide elements 30 are simply inserted into the extruded profile element 12.
Fig. 5 zeigt eine schematische Darstellung eines für eine Deckenleuchte ausgestalteten Leuchtenkörpers 10 mit einer Aufhängung 36 gemäß einem Ausführungsbeispiel der Erfin¬ dung . Fig. 5 shows a schematic representation of a designed for a ceiling light fixture 10 with a suspension 36 according to an embodiment of the inven ¬ tion.

Claims

Ansprüche Expectations
Leuchtenkörper (10), aufweisend ein Strangprofilele¬ ment (12) mit einer ersten Längserstreckung in einer Längserstreckungsrichtung, das ein Lichtaustrittselement (14) mit mindestens einer darin angeordneten Lichtaustrittsöffnung (16) umfasst, wobei das Licht¬ austrittselement (14) den Leuchtenkörper (10) zumindest teilweise in einer Lichtaustrittsrichtung begrenzt, wobei das Strangprofilelement (12) zwei zu¬ mindest teilweise entlang der Längserstreckungsrich- tung sich gegenüberliegend und entgegen der Lichtaus¬ trittsrichtung am Lichtaustrittselement (14) angeord¬ nete Längsseitenelemente (18) mit einer zweiten Längserstreckung in der Längserstreckungsrichtung umfasst, welche den Leuchtenkörper (10) entlang der Längserstreckungsrichtung zumindest teilweise seitlich begrenzen, wobei das Strangprofilelement (12) mindestens ein offenes Strangprofilende (12a) auf¬ weist, das das Strangprofilelement (12) in seiner ersten Längserstreckung begrenzt, wobei der Leuchtenkörper (10) mindestens eine Endkappe (26) umfasst, die an dem mindestens einen offenen Strangprofilende (12a) des Strangprofilelements (12) anordenbar ist, dadurch gekennzeichnet, dass Lamp body (10), comprising an extruded profile element (12) with a first longitudinal extent in a longitudinal direction, which comprises a light exit element (14) with at least one light exit opening (16) arranged therein, the light exit element (14) covering the lamp body (10 ) at least partially limited in a light exit direction, the extruded profile element (12) having two longitudinal side elements (18) arranged at least partially along the longitudinal extension direction opposite one another and against the light exit direction on the light exit element (14) with a second longitudinal extension in the Longitudinal extension direction, which at least partially laterally delimit the lamp body (10) along the longitudinal extension direction, the extruded profile element (12) having at least one open extruded profile end (12a) which delimits the extruded profile element (12) in its first longitudinal extent, the lamp body ( 10) comprises at least one end cap (26) which can be arranged on the at least one open extruded profile end (12a) of the extruded profile element (12), characterized in that
die Längsseitenelemente (18) jeweils mindestens ein Längsseitenelementende (18a) aufweisen, welches das jeweilige Längsseitenelement (18) in seiner zweiten Längserstreckung begrenzt, wobei die Längsseitenele¬ mente (18) derart am Lichtaustrittselement (14) ange¬ ordnet sind, dass die Längsseitenelementenden (18a) jeweils einen Abstand zum Strangprofilende (12a) auf- weisen, so dass die Endkappe (26) kontaktierend an den Längsseitenelementenden (18a) und am Lichtaustrittselement (14) anordenbar ist. the longitudinal side elements (18) each have at least one longitudinal side element end (18a), which delimits the respective longitudinal side element (18) in its second longitudinal extent, the longitudinal side elements (18) being arranged on the light exit element (14) in such a way that the longitudinal side element ends ( 18a) each have a distance to the end of the extruded profile (12a) have, so that the end cap (26) can be arranged in contact with the longitudinal side element ends (18a) and on the light exit element (14).
2. Leuchtenkörper (10) nach Anspruch 1, 2. Lamp body (10) according to claim 1,
dadurch gekennzeichnet, dass characterized in that
das Strangprofilende (12a) und zumindest ein Teil der am offenen Strangprofilende (12a) angeordneten End¬ kappe (26) eine Stirnseite des Leuchtenkörpers (10) bilden . the extruded profile end (12a) and at least part of the end cap (26) arranged on the open extruded profile end (12a) form an end face of the lamp body (10).
Leuchtenkörper (10) nach einem der vorhergehenden Ansprüche, Lamp body (10) according to one of the preceding claims,
dadurch gekennzeichnet, dass characterized in that
der jeweilige Abstand der Längsseitenelementenden (18a) zum Strangprofilende (12a) mindestens so groß ist wie eine Dicke der Endkappe (26) in einem jewei¬ ligen Kontaktbereich, in welchem die Endkappe (26) mit den jeweiligen Längsseitenelementenden (18a) kon- taktierbar ist, wobei die Dicke der Endkappe (26) ei¬ ne Abmessung in der Längserstreckungsrichtung des Strangprofilelements (12) bei einem Anordnen der End¬ kappe (26) an dem mindestens einen offenen Strangpro¬ filende (12a) ist. the respective distance between the longitudinal side element ends (18a) and the extruded profile end (12a) is at least as large as a thickness of the end cap (26) in a respective contact area in which the end cap (26) can be contacted with the respective longitudinal side element ends (18a). , wherein the thickness of the end cap (26) is a dimension in the longitudinal direction of the extruded profile element (12) when the end cap (26) is arranged on the at least one open extruded profile end (12a).
Leuchtenkörper (10) nach einem der vorhergehenden Ansprüche, Lamp body (10) according to one of the preceding claims,
dadurch gekennzeichnet, dass characterized in that
das Strangprofilelement (12) und die mindestens eine Endkappe (26) derart ausgebildet sind, dass die End¬ kappe (26) an dem mindestens einen offenen Strangpro¬ filende (12a) formschlüssig anordenbar ist. the extruded profile element (12) and the at least one end cap (26) are designed such that the end cap (26) can be arranged in a form-fitting manner on the at least one open extruded profile end (12a).
5. Leuchtenkörper (10) nach einem der vorhergehenden Ansprüche, 5. Lamp body (10) according to one of the preceding claims,
dadurch gekennzeichnet, dass characterized in that
die mindestens eine Endkappe (26) mindestens ein Kopplungselement (28) aufweist, mittels welchem die the at least one end cap (26) has at least one coupling element (28) by means of which the
Endkappe (26) am Strangprofilelement (12) befestigbar ist . End cap (26) can be attached to the extruded profile element (12).
Leuchtenkörper (10) nach einem der vorhergehenden Ansprüche, Lamp body (10) according to one of the preceding claims,
dadurch gekennzeichnet, dass characterized in that
LEDs am Lichtaustrittselement (14) des Strangprofil¬ elements (12) im Bereich der Lichtaustrittsöffnung (16) des Lichtaustrittselements (14) derart angeord¬ net sind, dass von den LEDs Licht in Richtung der Lichtaustrittsrichtung abstrahlbar ist. LEDs on the light exit element (14) of the extruded profile element (12) are arranged in the area of the light exit opening (16) of the light exit element (14) in such a way that light can be emitted from the LEDs in the direction of the light exit direction.
Leuchtenkörper (10) nach einem der vorhergehenden Ansprüche, Lamp body (10) according to one of the preceding claims,
dadurch gekennzeichnet, dass characterized in that
das Strangprofilelement (12) Führungsschienen (20) aufweist, welche in Längserstreckungsrichtung und am Lichtaustrittselement (14) entgegengesetzt zur Licht¬ austrittsrichtung angeordnet sind. the extruded profile element (12) has guide rails (20) which are arranged in the longitudinal direction and on the light exit element (14) opposite to the light exit direction.
Leuchtenkörper (10) nach einem der vorhergehenden Ansprüche, Lamp body (10) according to one of the preceding claims,
dadurch gekennzeichnet, dass characterized in that
die Endkappe (26) mindestens ein Führungselement (30) aufweist, mittels welchem eine zwischen zwei Füh¬ rungsschienen (20) des Strangprofilelements (12) ein- geführte Leiterplatte zumindest zum Teil abdeckbar ist . the end cap (26) has at least one guide element (30), by means of which one is inserted between two guide rails (20) of the extruded profile element (12). Guided circuit board can be at least partially covered.
Leuchtenkörper (10) nach einem der vorhergehenden Ansprüche, Lamp body (10) according to one of the preceding claims,
dadurch gekennzeichnet, dass characterized in that
zwischen zwei Führungsschienen (20) mindestens eine Leiterplatte mit darauf angeordneten LEDs eingeführt ist, wobei die LEDs derart auf der Leiterplatte ange¬ ordnet sind, dass von den LEDs Licht in einer Rich¬ tung entgegengesetzt zur Lichtaustrittsrichtung abstrahlbar ist. At least one circuit board with LEDs arranged thereon is inserted between two guide rails (20), the LEDs being arranged on the circuit board in such a way that light can be emitted from the LEDs in a direction opposite to the light exit direction.
Verfahren zum Herstellen eines Leuchtenkörpers (10) mit den Schritten: Method for producing a lamp body (10) with the steps:
- Strangpressen eines Strangprofilelements (12) mit einer ersten Längserstreckung in einer Längserstreckungsrichtung, mit einem Lichtaustrittselement (14) und mit zwei zumindest teil¬ weise entlang der Längserstreckungsrichtung sich gegenüberliegend und entgegen einer Licht¬ austrittsrichtung am Lichtaustrittselement (14) angeordnete Längsseitenelemente (18) mit der ersten Längserstreckung in der Längserstreckungsrichtung, wobei das Lichtaustrittselement (14) den Leuchtenkörper (10) zumindest teilwei¬ se in der Lichtaustrittsrichtung begrenzt, und wobei die Längsseitenelemente (18) den Leuch¬ tenkörper (10) entlang der Längserstreckungs¬ richtung zumindest teilweise seitlich begrenzen; - Entfernen mindestens eines Teils des Lichtaus¬ trittselements (14) des Strangprofilelements (12), so dass mindestens eine Lichtaustritts¬ öffnung (16) im Lichtaustrittselement (14) ent¬ steht ; - Extrusion of an extruded profile element (12) with a first longitudinal extent in a longitudinal direction, with a light exit element (14) and with two longitudinal side elements (18) arranged at least partially along the longitudinal direction opposite one another and against a light exit direction on the light exit element (14). the first longitudinal extension in the longitudinal extension direction, wherein the light exit element (14) at least partially limits the lamp body (10) in the light exit direction, and wherein the longitudinal side elements (18) at least partially laterally limit the lamp body (10) along the longitudinal extension direction ; - Removing at least part of the light exit element (14) of the extruded profile element (12), so that at least one light exit opening (16) is created in the light exit element (14);
- Entfernen jeweils eines Teils der Längsseitenelemente (18) an mindestens einem offenen Strangprofilende (12a), so dass diese jeweils eine zweite Längserstreckung aufweisen, welche durch jeweils ein Längsseitenelementende (18a) begrenzt ist, und so dass die Längsseitenele- mentenden (18a) jeweils einen Abstand zum Strangprofilende (12a) aufweisen; - Removing a part of the longitudinal side elements (18) on at least one open extruded profile end (12a), so that they each have a second longitudinal extension, which is limited by a respective longitudinal side element end (18a), and so that the longitudinal side element ends (18a) each have a distance from the end of the extruded profile (12a);
- Anordnen einer Endkappe (26) am offenen Strangprofilende (12a) derart, dass diese das Licht¬ austrittselement (14) und die Längsseitenele- mentenden (18a) kontaktiert. - Arranging an end cap (26) on the open extruded profile end (12a) in such a way that it contacts the light exit element (14) and the longitudinal side element ends (18a).
Verfahren nach Anspruch 10, mit folgendem weiteren Schritt : Method according to claim 10, with the following further step:
- vor dem Anordnen der Endkappe (26) Entfernen eines Teils des Lichtaustrittselements (14) am Strangprofilende (12a) entsprechend einer vor¬ gebbaren Formgebung einer Kontur des Strangprofilendes (12a) . - Before arranging the end cap (26), removing a part of the light exit element (14) at the extruded profile end (12a) in accordance with a predeterminable shape of a contour of the extruded profile end (12a).
EP13750704.2A 2012-11-16 2013-08-20 Lighting fixture and method for producing a lighting fixture Active EP2920513B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012220969.7A DE102012220969A1 (en) 2012-11-16 2012-11-16 LUMINAIRE BODY AND METHOD FOR PRODUCING A LUMINAIRE BODY
PCT/EP2013/067309 WO2014075825A1 (en) 2012-11-16 2013-08-20 Lighting fixture and method for producing a lighting fixture

Publications (2)

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

Family

ID=49000943

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13750704.2A Active EP2920513B1 (en) 2012-11-16 2013-08-20 Lighting fixture and method for producing a lighting fixture

Country Status (3)

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

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Publication number Priority date Publication date Assignee Title
AT15737U1 (en) * 2016-11-28 2018-05-15 Zumtobel Lighting Gmbh Elongated light

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Publication number Priority date Publication date Assignee Title
DE4313080A1 (en) * 1993-04-21 1994-10-27 Heinrich Korte Head piece for a linear luminaire
DE102005016487A1 (en) * 2005-04-08 2006-10-12 Setolite Lichttechnik Gmbh Lamp with a tubular lighting unit, for halls and tents, has a housing composed of a center connector of different widths to hold longitudinal side components in a variety of lamp housing width dimensions
DE202008006765U1 (en) * 2008-05-17 2008-07-31 Fkb Gmbh recessed light
JP4447644B2 (en) * 2008-07-15 2010-04-07 シーシーエス株式会社 Light irradiation device
US8915611B2 (en) * 2011-04-08 2014-12-23 Lunera Lighting, Inc. Light well providing wide angle up lighting in an LED luminaire
JP2012243393A (en) * 2011-05-13 2012-12-10 Toshiba Lighting & Technology Corp Lighting fixture

Also Published As

Publication number Publication date
EP2920513B1 (en) 2016-11-09
WO2014075825A1 (en) 2014-05-22
DE102012220969A1 (en) 2014-05-22

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