EP1561994A2 - Reflector assembly for a luminaire with a plurality of reflector chambers arranged in a row - Google Patents

Reflector assembly for a luminaire with a plurality of reflector chambers arranged in a row Download PDF

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Publication number
EP1561994A2
EP1561994A2 EP05002418A EP05002418A EP1561994A2 EP 1561994 A2 EP1561994 A2 EP 1561994A2 EP 05002418 A EP05002418 A EP 05002418A EP 05002418 A EP05002418 A EP 05002418A EP 1561994 A2 EP1561994 A2 EP 1561994A2
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EP
European Patent Office
Prior art keywords
reflector
elements
arrangement according
reflector arrangement
assembly
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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
EP05002418A
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German (de)
French (fr)
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EP1561994A3 (en
EP1561994B1 (en
Inventor
Christian Dipl.-Ing. Susana
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ZUMTOBEL LIGHTING GmbH
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Zumtobel Staff GmbH
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    • 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
    • F21V7/10—Construction
    • 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
    • F21V7/0058—Reflectors for light sources adapted to cooperate with light sources of shapes different from point-like or linear, e.g. circular light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • F21Y2103/30—Elongate light sources, e.g. fluorescent tubes curved
    • F21Y2103/33—Elongate light sources, e.g. fluorescent tubes curved annular

Definitions

  • the present invention relates to a reflector assembly for a luminaire, wherein the reflector arrangement has a plurality of reflector chambers arranged in series, over which the light emitted by a light source is radiated.
  • Reflector arrangements of this type are usually used when to be avoided by the light emitted by a light Glares occur.
  • the individual reflector chambers of the arrangement are for this purpose configured such that the light emitted from the light source only under certain angle ranges the lamp can leave. These areas are like that chosen that a person located diagonally below the lamp not directly can look into the light source.
  • Reflector arrangements also reflections on vertically arranged surfaces be avoided within a room to be illuminated.
  • the directed after down radiated light can thus be used in particular also Office space with computer workstations to light.
  • the light source as one or more elongated gas discharge lamps, in particular Have fluorescent tubes.
  • One in light emission direction in front of the light source arranged reflector assembly is then also elongated and consists of several arranged in series reflector chambers.
  • ring-shaped luminaires are also known which have a circular arc Have light source.
  • the reflector assembly also has a Ring structure, which is to be arranged in the emission in front of the light source.
  • Reflector assemblies of the type discussed above may be characterized, for example be created that initially two spaced apart from each other and essentially be provided parallel to each other reflector walls by several Rastquerstege be connected together.
  • the Rastquerstege point usually a slight V-shape and divide the overall arrangement in juxtaposed reflector chambers.
  • Such constructions have become Although proven so far, but it is only possible with great effort, To achieve more complex structures for the reflector assembly.
  • Already ring-shaped Reflector arrangements according to the above construction can only with great Effort to be created.
  • the present invention is therefore based on the object, a Possibility to specify reflector arrangements in different forms and To produce lengths in the simplest possible way.
  • the invention also has Arrangement a plurality of arranged in series reflector chambers.
  • the reflector chambers or groups thereof are separate elements, which are suitable and intended for assembly, such that they as a whole form the reflector assembly.
  • the core idea of the present invention is thus, the reflector arrangement not as previously from side reflector walls and interposed Rastquerstegen instead of forming individual separate elements into a whole Assemble arrangement, the individual elements at least one Include reflector chamber. It is a modular system, so to speak placed in which the separate elements in the desired manner can be assembled. In particular, this makes it possible to Reflector arrays of any length to form, which is advantageous if the arrangements must be adapted to certain lights. Furthermore, can Even slightly curved elements are used, resulting in a ring structure be assembled to form an annular reflector assembly.
  • the separate elements according to the invention are preferably made of plastic and can be produced in particular by injection molding. Become two of such elements joined together, so can the juxtaposed End walls of the two elements together form a Rastquersteg, through which the reflector chambers are separated from each other.
  • the end walls of the elements - seen in the direction of radiation - slightly outward be inclined so that one of two contiguous elements formed Rastquersteg is substantially V-shaped, as in the usual V-blades of light grids is the case.
  • the assembled to the reflector assembly elements can by a separate holding element are held together, but preferably they have own connection means on which they are assembled.
  • the connecting means can form tongue and groove joints, via which is a simple and quick assembly of the elements in the manner of a Modular system is made possible.
  • the illustrated luminaire 1 is a recessed ceiling luminaire with a box-shaped lamp housing 2, which in the circular opening a blanket 3 is inserted.
  • annular light source in shape a gas discharge lamp 5.
  • the light emitted by this lamp 5 is intended for Bottom out are radiated, but only within certain Angular ranges to avoid glare.
  • annular Reflector assembly 10 is provided, which seen in the emission in the is arranged substantially in front of the lamp 5.
  • the restriction of the delivered Light rays on certain areas is on the one hand by the reflective Outer and inner walls 10a and 10b of the reflector assembly, but in particular arranged by a plurality of transversely thereto - shown schematically - Rastquerstegen 13.
  • This Rastquerstege 13 divide the cross-sectionally U-shaped Reflector assembly 10 in a plurality of reflector chambers 12, which on its underside each form a light exit surface over which the light of the lamp. 5 is delivered. At its upper portion, the locking transverse webs 13 each have one Recess 11, which allows the lamp 5 within the upper area to arrange the reflector assembly 10.
  • the shape and structure of the inner and outer walls 10a and 10b and the Rastquerstege 13 of the reflector assembly 10 is such that of the lamp. 5 emitted light only at certain angles the radiating the Can leave light chambers 12.
  • the walls are each slightly laterally inclined, so that a lateral radiation is possible at smaller angles.
  • the solution according to the invention is the reflector arrangement of separate Assemble elements, wherein the elements a reflector chamber or a Form group of reflector chambers. Corresponding elements are shown in FIGS. 2a and 2b.
  • the element provided with the reference numeral 20 is box-shaped and has two side walls 21 and 22 and two end walls 23 and 24, the formed reflective at least on its inner side or with a reflective Layer are provided and together on its underside a light exit opening for a reflector chamber.
  • the elements 20 are used to form an annular reflector arrangement form, which is why the side walls 21 and 22 are curved slightly arcuate and the outer side wall 23 has a larger radius of curvature than the opposite inner wall 21.
  • connection means For joining the elements 20 are at this a plurality of connection means provided, via which the elements are joined together in a simple manner can.
  • First connecting elements consist in a recess 25 a and a peg-shaped projection 25b, which at the two ends of a to the Light exit opening laterally adjacent bottom bar 25 are arranged.
  • a cylindrical groove 26a At the opposite inner side of the element 20 is also a cylindrical groove 26a, which for locking with a columnar Projection 26b is provided.
  • annular structure - as shown in Fig. 3 - are assembled to to form a total of an annular reflector assembly 10.
  • Fig. 3 can be removed, meets the resulting reflector assembly 10 exactly the requirements of the lamp provided in Fig. 1 Reflector assembly.
  • annular channel eleventh formed, in which the light source can be used.
  • individual Reflector chambers 12 formed, which are separated by transverse webs 13 from each other. It is of particular importance that the reflector transverse webs 13 - as in Light grids desired - open at the top slightly V-shaped. This is achieved in that the Rastquerstege 13 through the two adjacent End walls 23 and 24 of two adjacent elements 20 are formed in Direction seen, are slightly inclined outwards and only at their Collide lower edges.
  • each reflector chamber 12 of the reflector assembly 10 by a separate element 20 is formed.
  • elements that have a Group of multiple reflector chambers 12, for example two or three Include reflector chambers are preferably provided.
  • the reflector assembly 10 can thus in a simple manner be created that a variety of injection-molded Elements 20 is joined together.
  • the through the connecting elements 25a, 25b and 26a, 26b produced tongue and groove connections provide this for a Reliable hold, so that a total of a stable arrangement is achieved.
  • Effort for creating the reflector assembly 10 is significantly less than so far when joining many items according to the state of Technique was the case.
  • An advantage of the inventive solution when creating straighter Reflector arrangements is that by the number of used Items in a simple way, the length of the reflector assembly to be created can be changed. There is thus a possibility in a simple way To provide reflector assemblies of different lengths without this one Additional effort would be required. It would also be possible to have more complex ones Form structures for reflector assemblies, provided the individual elements are shaped accordingly. For example, would be conceivable, S or snake-shaped To form reflector assemblies.
  • the present invention provides a solution Reflector arrangements of even more complex forms in a simple and fast way too create.
  • the formed with the help of composite elements Reflector assembly also has excellent optical properties, which is why they are also used in demanding lighting situations can.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

The reflector arrangement has several reflector chambers (12) in series. The reflector chambers or groups of them are separate elements (20) suitable for combining together so that they form the reflector arrangement (10) as a whole. The reflector chambers are separated from each other by transverse latching elements (13). Independent claims are also included for the following: (A) a light (B) and a reflector element.

Description

Die vorliegende Erfindung betrifft eine Reflektoranordnung für eine Leuchte, wobei die Reflektoranordnung mehrere in Reihe angeordnete Reflektorkammern aufweist, über welche das von einer Lichtquelle abgegebene Licht gerichtet abgestrahlt wird.The present invention relates to a reflector assembly for a luminaire, wherein the reflector arrangement has a plurality of reflector chambers arranged in series, over which the light emitted by a light source is radiated.

Reflektoranordnungen dieser Art werden üblicherweise dann eingesetzt, wenn vermieden werden soll, dass durch das von einer Leuchte abgestrahlte Licht Blendungen auftreten. Die einzelnen Reflektorkammern der Anordnung sind hierzu derart ausgestaltet, dass das von der Lichtquelle abgestrahlte Licht lediglich unter bestimmten Winkelbereichen die Leuchte verlassen kann. Diese Bereiche sind so gewählt, dass eine schräg unterhalb der Leuchte befindliche Person nicht unmittelbar in die Lichtquelle blicken kann. Ferner können durch die Verwendung solcher Reflektoranordnungen auch Reflexionen auf senkrecht angeordneten Oberflächen innerhalb eines zu beleuchtenden Raumes vermieden werden. Das gerichtet nach unten abgestrahlte Licht kann damit insbesondere auch dazu verwendet werden, Büroräume mit Bildschirmarbeitsplätzen zu beleuchten.Reflector arrangements of this type are usually used when to be avoided by the light emitted by a light Glares occur. The individual reflector chambers of the arrangement are for this purpose configured such that the light emitted from the light source only under certain angle ranges the lamp can leave. These areas are like that chosen that a person located diagonally below the lamp not directly can look into the light source. Furthermore, by the use of such Reflector arrangements also reflections on vertically arranged surfaces be avoided within a room to be illuminated. The directed after down radiated light can thus be used in particular also Office space with computer workstations to light.

Je nach Gestalt der Leuchte und Lichtquelle können auch die Reflektoranordnungen unterschiedliche Formen annehmen. Überwiegend kommen Leuchten zum Einsatz, die als Lichtquelle eine oder mehrere längliche Gasentladungslampen, insbesondere Leuchtstoffröhren aufweisen. Eine in Lichtabstrahlrichtung vor der Lichtquelle angeordnete Reflektoranordnung ist dann ebenfalls langgestreckt ausgebildet und besteht aus mehreren in Reihe angeordneten Reflektorkammern. Daneben sind allerdings auch ringförmige Leuchten bekannt, die eine kreisförmig gebogene Lichtquelle aufweisen. In diesem Fall weist die Reflektoranordnung ebenfalls eine Ringstruktur auf, die in Abstrahlrichtung vor der Lichtquelle anzuordnen ist.Depending on the shape of the light and light source and the reflector arrangements take different forms. Mostly lamps are used, the light source as one or more elongated gas discharge lamps, in particular Have fluorescent tubes. One in light emission direction in front of the light source arranged reflector assembly is then also elongated and consists of several arranged in series reflector chambers. Next to it are However, ring-shaped luminaires are also known which have a circular arc Have light source. In this case, the reflector assembly also has a Ring structure, which is to be arranged in the emission in front of the light source.

Reflektoranordnungen der oben besprochenen Art können beispielsweise dadurch erstellt werden, dass zunächst zwei beabstandet voneinander und im wesentlichen parallel zueinander verlaufende Reflektorwände bereitgestellt werden, die durch mehrere Rastquerstege miteinander verbunden werden. Die Rastquerstege weisen üblicherweise eine leichte V-Form auf und unterteilen die Gesamtanordnung in nebeneinander angeordnete Reflektorkammern. Derartige Konstruktionen haben sich zwar bislang bewährt, allerdings ist es nur mit großem Aufwand möglich, komplexere Strukturen für die Reflektoranordnung zu erzielen. Bereits ringförmige Reflektoranordnungen nach der obigen Konstruktion können nur mit großem Aufwand erstellt werden.Reflector assemblies of the type discussed above may be characterized, for example be created that initially two spaced apart from each other and essentially be provided parallel to each other reflector walls by several Rastquerstege be connected together. The Rastquerstege point usually a slight V-shape and divide the overall arrangement in juxtaposed reflector chambers. Such constructions have become Although proven so far, but it is only possible with great effort, To achieve more complex structures for the reflector assembly. Already ring-shaped Reflector arrangements according to the above construction can only with great Effort to be created.

Der vorliegenden Erfindung liegt dementsprechend die Aufgabe zugrunde, eine Möglichkeit anzugeben, Reflektoranordnungen in unterschiedlichen Gestalten und Längen auf möglichst einfache Art und Weise herzustellen.The present invention is therefore based on the object, a Possibility to specify reflector arrangements in different forms and To produce lengths in the simplest possible way.

Die Aufgabe wird durch eine Reflektoranordnung mit den Merkmalen des Anspruchs 1 gelöst.The object is achieved by a reflector arrangement with the features of Claim 1 solved.

Ebenso wie die bekannten Reflektoranordnungen weist auch die erfindungsgemäße Anordnung mehrere in Reihe angeordnete Reflektorkammern auf. Erfindungsgemäß sind allerdings die Reflektorkammern oder Gruppen davon separate Elemente, welche zum Zusammensetzen geeignet und bestimmt sind, derart, dass sie als ganzes die Reflektoranordnung bilden.Like the known reflector arrangements, the invention also has Arrangement a plurality of arranged in series reflector chambers. According to the invention however, the reflector chambers or groups thereof are separate elements, which are suitable and intended for assembly, such that they as a whole form the reflector assembly.

Kerngedanke der vorliegenden Erfindung ist somit, die Reflektoranordnung nicht wie bisher aus seitlichen Reflektorwänden und dazwischen angeordneten Rastquerstegen zu bilden, sondern statt dessen einzelne separate Elemente zu einer gesamten Anordnung zusammenzusetzen, wobei die einzelnen Elemente mindestens eine Reflektorkammer umfassen. Es wird sozusagen ein Baukastensystem zur Verfügung gestellt, bei dem die separaten Elemente in gewünschter Art und Weise zusammengesetzt werden können. Hierdurch besteht insbesondere die Möglichkeit, Reflektoranordnungen beliebiger Länge zu bilden, was dann von Vorteil ist, wenn die Anordnungen an bestimmte Leuchten angepaßt werden müssen. Ferner können auch leicht gekrümmte Elemente zum Einsatz kommen, die zu einer Ringstruktur zusammengesetzt werden, um eine ringförmige Reflektoranordnung zu bilden.The core idea of the present invention is thus, the reflector arrangement not as previously from side reflector walls and interposed Rastquerstegen instead of forming individual separate elements into a whole Assemble arrangement, the individual elements at least one Include reflector chamber. It is a modular system, so to speak placed in which the separate elements in the desired manner can be assembled. In particular, this makes it possible to Reflector arrays of any length to form, which is advantageous if the arrangements must be adapted to certain lights. Furthermore, can Even slightly curved elements are used, resulting in a ring structure be assembled to form an annular reflector assembly.

Die erfindungsgemäßen separaten Elemente bestehen vorzugsweise aus Kunststoff und können insbesondere im Spritzgießverfahren hergestellt werden. Werden zwei solcher Elemente aneinandergefügt, so können die nebeneinander liegenden Stirnwände der beiden Elemente gemeinsam einen Rastquersteg bilden, durch welchen die Reflektorkammern voneinander getrennt werden. Vorzugsweise können dabei die Stirnwände der Elemente - in Abstrahlrichtung gesehen - leicht nach außen geneigt sein, so dass ein von zwei aneinandergrenzenden Elementen gebildeter Rastquersteg im wesentlichen V-förmig ist, wie das bei den üblichen V-Lamellen von Leuchtenrastern der Fall ist. The separate elements according to the invention are preferably made of plastic and can be produced in particular by injection molding. Become two of such elements joined together, so can the juxtaposed End walls of the two elements together form a Rastquersteg, through which the reflector chambers are separated from each other. Preferably while the end walls of the elements - seen in the direction of radiation - slightly outward be inclined so that one of two contiguous elements formed Rastquersteg is substantially V-shaped, as in the usual V-blades of light grids is the case.

Bei dieser soeben beschriebenen Variante zeigt sich ein besonderer Vorteil der erfindungsgemäßen Lösung. Bislang im Spritzgießverfahren hergestellte Rastquerstege für Reflektoranordnungen wiesen nämlich immer seitliche Eindellungen auf, welche die Reflexionseigenschaften der Anordnung nachteilig beeinträchtigten. Der Grund hierfür besteht darin, dass die einzelnen Rastquerstege aus zwei schräg aufeinander zulaufenden Stegteilen bestehen, die in etwa ab der Mitte einstückig zur Unterseite zusammenlaufen. Wird ein derartiges Teil spritzgegossen, so entsteht an der Stelle, an der die beiden Stegteile aufeinander zulaufen, die größte Materialanhäufung. Erkaltet der Kunststoff nunmehr nach dem Spritzen, so treten aufgrund der unterschiedlich starken Materialanhäufungen die angesprochenen Eindellungen auf, die durch den abrupten Übergang in den Reflexionseigenschaften von einem Betrachter wahrgenommen werden können.In this variant just described a particular advantage of solution according to the invention. Previously produced by injection molding Rastquerstege for reflector arrangements namely always had lateral Dents on which the reflection properties of the arrangement disadvantageous impaired. The reason for this is that the individual Rastquerstege consist of two diagonally converging web parts, which are approximately from the Center together in one piece to the bottom. Will be such a part injection molded, so arises at the point where the two web parts on each other run, the largest material accumulation. The plastic now cooled after the Spraying, so occur due to the different levels of material accumulation raised by the abrupt transition into the Reflection properties can be perceived by a viewer.

Gemäß der vorliegenden Erfindung können nunmehr Raststege ohne diese Eindellungen gebildet werden, was dadurch erzielt wird, dass die Stirnwände zweier benachbarter Elemente aufeinander zulaufen und erst an ihren Unterkanten aneinanderstossen. Es ergibt sich hierbei zwar an der Unterkante ein geringfügiger Spalt, dieser ist jedoch für einen Betrachter nicht wahrnehmbar, weil er von der Lichtquelle nicht unmittelbar beleuchtet wird. Die Seitenwände des auf diese Weise gebildeten Rastquerstegs hingegen sind stetig gekrümmt, so dass keine optischen Unregelmäßigkeiten auftreten. Insgesamt gesehen weist damit die erfindungsgemäße Reflektoranordnung verbesserte optische Eigenschaften auf.According to the present invention can now locking webs without these Dents are formed, which is achieved by the fact that the end walls of two adjacent elements run towards each other and only at their lower edges abut. Although this results in a minor at the lower edge Spalt, however, this is imperceptible to a viewer, because of the Light source is not illuminated directly. The side walls of this way On the other hand formed Rastquerstegs are continuously curved, so that no optical Irregularities occur. Overall, thus has the inventive Reflector arrangement improved optical properties.

Die zu der Reflektoranordnung zusammengesetzten Elemente können durch ein separates Halteelement zusammengehalten werden, vorzugsweise weisen sie jedoch eigene Verbindungsmittel auf, über welche sie zusammengesetzt werden. Insbesondere können die Verbindungsmittel Nut-Feder-Verbindungen bilden, über welche ein einfaches und schnelles Zusammensetzen der Elemente in Art eines Baukastensystems ermöglicht wird.The assembled to the reflector assembly elements can by a separate holding element are held together, but preferably they have own connection means on which they are assembled. In particular, the connecting means can form tongue and groove joints, via which is a simple and quick assembly of the elements in the manner of a Modular system is made possible.

Nachfolgend soll die Erfindung anhand der beiliegenden Zeichnung näher erläutert werden. Es zeigen:

Fig. 1
eine Leuchte mit einer ringförmigen Reflektoranordnung im Schnitt;
Fig. 2a und 2b
verschiedene Ansichten eines erfindungsgemäßen Elements zum Bilden einer Reflektoranordnung und
Fig. 3
eine aus den Elementen der Fig. 2a und 2b zusammengesetzte ringförmige Reflektoranordnung.
The invention will be explained in more detail with reference to the accompanying drawings. Show it:
Fig. 1
a lamp with an annular reflector arrangement in section;
Fig. 2a and 2b
various views of an inventive element for forming a reflector assembly and
Fig. 3
a composed of the elements of Fig. 2a and 2b annular reflector assembly.

Fig. 1 zeigt eine in ihrer Gesamtheit mit dem Bezugszeichen 1 versehene Leuchte, bei der eine Reflektoranordnung gemäß der vorliegenden Erfindung zum Einsatz kommt. Bei der dargestellten Leuchte 1 handelt es sich um eine Deckeneinbauleuchte mit einem kastenförmigen Leuchtengehäuse 2, welches in die kreisförmige Öffnung einer Decke 3 eingesetzt ist.1 shows a lamp provided with the reference numeral 1 in its entirety, in which a reflector assembly according to the present invention is used comes. The illustrated luminaire 1 is a recessed ceiling luminaire with a box-shaped lamp housing 2, which in the circular opening a blanket 3 is inserted.

Innerhalb des Leuchtengehäuses 2 befindet sich eine ringförmige Lichtquelle in Form einer Gasentladungslampe 5. Das von dieser Lampe 5 abgegebene Licht soll zur Unterseite hin abgestrahlt werden, allerdings lediglich innerhalb bestimmter Winkelbereiche, um Blendungen zu vermeiden. Hierzu ist eine ebenfalls ringförmige Reflektoranordnung 10 vorgesehen, welche in Abstrahlrichtung gesehen im wesentlichen vor der Lampe 5 angeordnet ist. Die Beschränkung der abgegebenen Lichtstrahlen auf bestimmte Bereiche erfolgt zum einen durch die reflektierenden Außen- und Innenwände 10a bzw. 10b der Reflektoranordnung, insbesondere jedoch durch eine Vielzahl von quer dazu angeordneten - schematisch dargestellten - Rastquerstegen 13. Diese Rastquerstege 13 unterteilen die im Querschnitt U-förmige Reflektoranordnung 10 in mehrere Reflektorkammern 12, welche an ihrer Unterseite jeweils eine Lichtaustrittsfläche bilden, über welche das Licht der Lampe 5 abgegeben wird. An ihrem oberen Bereich weisen die Rastquerstege 13 jeweils eine Ausnehmung 11 auf, welche es gestattet, die Lampe 5 innerhalb des oberen Bereichs der Reflektoranordnung 10 anzuordnen.Within the lamp housing 2 is an annular light source in shape a gas discharge lamp 5. The light emitted by this lamp 5 is intended for Bottom out are radiated, but only within certain Angular ranges to avoid glare. For this purpose, a likewise annular Reflector assembly 10 is provided, which seen in the emission in the is arranged substantially in front of the lamp 5. The restriction of the delivered Light rays on certain areas is on the one hand by the reflective Outer and inner walls 10a and 10b of the reflector assembly, but in particular arranged by a plurality of transversely thereto - shown schematically - Rastquerstegen 13. This Rastquerstege 13 divide the cross-sectionally U-shaped Reflector assembly 10 in a plurality of reflector chambers 12, which on its underside each form a light exit surface over which the light of the lamp. 5 is delivered. At its upper portion, the locking transverse webs 13 each have one Recess 11, which allows the lamp 5 within the upper area to arrange the reflector assembly 10.

Die Form und Struktur der Innen- und Außenwände 10a und 10b sowie der Rastquerstege 13 der Reflektoranordnung 10 ist derart, dass von der Lampe 5 abgegebenes Licht nur unter bestimmten Winkeln die Abstrahlöffnungen der Lichtkammern 12 verlassen kann. Die Wände sind hierzu jeweils leicht seitlich geneigt, so dass eine seitliche Abstrahlung unter kleineren Winkeln ermöglicht wird.The shape and structure of the inner and outer walls 10a and 10b and the Rastquerstege 13 of the reflector assembly 10 is such that of the lamp. 5 emitted light only at certain angles the radiating the Can leave light chambers 12. The walls are each slightly laterally inclined, so that a lateral radiation is possible at smaller angles.

Zur Herstellung einer Reflektoranordnung der in Fig. 1 dargestellten Art war es bislang bekannt, eine reflektierende ringförmige Außenwand mit einer reflektierenden Innenwand zu kombinieren und beide Wände über eine Vielzahl von Rastquerstegen miteinander zu verbinden. Bei diesen Rastquerstegen handelte es sich überwiegend jeweils um separate Elemente, die mit den Außen- und Innenwänden verbünden werden mußten. Der Aufwand zur Erstellung einer derartigen Reflektoranordnung war dementsprechend sehr hoch. Anhand der Fig. 2a und 2b sowie von Fig. 3 soll nunmehr eine neuartige und einfachere Möglichkeit erläutert werden, eine entsprechende Reflektoranordnung zu bilden.For producing a reflector arrangement of the type shown in Fig. 1, it was heretofore known, a reflective annular outer wall with a to combine reflective interior wall and both walls over a variety of Rast ridges to connect with each other. These locking crossbars were mostly around separate elements, with the outer and inner walls had to be ally. The effort to create such Reflector arrangement was therefore very high. With reference to FIGS. 2a and 2b As well as of Fig. 3 will now be explained a novel and easier way be to form a corresponding reflector assembly.

Die erfindungsgemäße Lösung besteht darin, die Reflektoranordnung aus separaten Elementen zusammenzusetzen, wobei die Elemente eine Reflektorkammer oder eine Gruppe von Reflektorkammern bilden. Entsprechende Elemente sind in den Fig. 2a und 2b dargestellt.The solution according to the invention is the reflector arrangement of separate Assemble elements, wherein the elements a reflector chamber or a Form group of reflector chambers. Corresponding elements are shown in FIGS. 2a and 2b.

Das mit dem Bezugszeichen 20 versehene Element ist kastenförmig ausgebildet und weist zwei Seitenwände 21 und 22 sowie zwei Stirnwände 23 und 24 auf, die zumindest an ihrer Innenseite reflektierend ausgebildet oder mit einer reflektierenden Schicht versehen sind und gemeinsam an ihrer Unterseite eine Lichtaustrittsöffnung für eine Reflektorkammer eingrenzen. Im dargestellten Ausführungsbeispiel sollen die Elemente 20 dazu verwendet werden, eine ringförmige Reflektoranordnung zu bilden, weshalb die Seitenwände 21 und 22 leicht bogenförmig gekrümmt sind und die äußere Seitenwand 23 einen größeren Krümmungsradius aufweist als die gegenüberliegende Innenwand 21.The element provided with the reference numeral 20 is box-shaped and has two side walls 21 and 22 and two end walls 23 and 24, the formed reflective at least on its inner side or with a reflective Layer are provided and together on its underside a light exit opening for a reflector chamber. In the illustrated embodiment are intended the elements 20 are used to form an annular reflector arrangement form, which is why the side walls 21 and 22 are curved slightly arcuate and the outer side wall 23 has a larger radius of curvature than the opposite inner wall 21.

Zum Zusammenfügen der Elemente 20 sind an diesen mehrere Verbindungsmittel vorgesehen, über welche die Elemente auf einfache Weise aneinandergefügt werden können. Erste Verbindungselemente bestehen in einer Ausnehmung 25a und einem zapfenförmigen Vorsprung 25b, die an den beiden Enden einer sich an die Lichtaustrittsöffnung seitlich anschließenden Bodenleiste 25 angeordnet sind. An der gegenüberliegenden Innenseite des Elements 20 befindet sich ferner eine zylinderförmige Nut 26a, welche zur Verriegelung mit einem säulenförmigen Vorsprung 26b vorgesehen ist. Beim Zusammenfügen zweier gleichartiger Elemente 20 werden hierdurch Nut-Feder-Verbindung gebildet, welche für eine feste Verbindung zwischen den Elementen 20 sorgen. Alternativ oder ergänzend dazu könnten die aneinandergefügten Elemente allerdings auch durch ein separates Halteelement zusammengehalten werden.For joining the elements 20 are at this a plurality of connection means provided, via which the elements are joined together in a simple manner can. First connecting elements consist in a recess 25 a and a peg-shaped projection 25b, which at the two ends of a to the Light exit opening laterally adjacent bottom bar 25 are arranged. At the the opposite inner side of the element 20 is also a cylindrical groove 26a, which for locking with a columnar Projection 26b is provided. When merging two similar elements 20 tongue and groove connection are thus formed, which is for a fixed Make connection between the elements 20. Alternatively or in addition However, the joined elements could also be separated Holding element are held together.

Mehrere Elemente 20 des in den Fig. 2a und 2b dargestellten Typs können dann zu einer ringförmigen Struktur - wie in Fig. 3 gezeigt - zusammengesetzt werden, um insgesamt eine ringförmige Reflektoranordnung 10 zu bilden. Wie der Darstellung in Fig. 3 entnommen werden kann, erfüllt die hierbei entstehende Reflektoranordnung 10 genau die Anforderungen der bei der Leuchte in Fig. 1 vorgesehen Reflektoranordnung. Insbesondere wird durch entsprechende Ausnehmungen 23a und 24a an den Oberseiten der Stirnseiten 23, 24 wiederum ein ringförmiger Kanal 11 gebildet, in welchen die Lichtquelle eingesetzt werden kann. Ferner werden einzelne Reflektorkammern 12 gebildet, die durch Querstege 13 voneinander getrennt sind. Hierbei ist von besonderer Bedeutung, dass die Reflektorquerstege 13 - wie bei Leuchtenrastern gewünscht - nach oben geöffnet leicht V-förmig gestaltet sind. Dies wird dadurch erzielt, dass die Rastquerstege 13 durch die zwei aneinandergrenzenden Stirnwände 23 und 24 zweier benachbarter Elemente 20 gebildet werden, die in Abstrahlrichtung gesehen, leicht nach außen geneigt sind und erst an ihren Unterkanten aneinanderstossen.Several elements 20 of the type shown in Figs. 2a and 2b can then an annular structure - as shown in Fig. 3 - are assembled to to form a total of an annular reflector assembly 10. As the illustration in Fig. 3 can be removed, meets the resulting reflector assembly 10 exactly the requirements of the lamp provided in Fig. 1 Reflector assembly. In particular, by corresponding recesses 23 a and 24a on the upper sides of the end faces 23, 24 in turn an annular channel eleventh formed, in which the light source can be used. Furthermore, individual Reflector chambers 12 formed, which are separated by transverse webs 13 from each other. It is of particular importance that the reflector transverse webs 13 - as in Light grids desired - open at the top slightly V-shaped. This is achieved in that the Rastquerstege 13 through the two adjacent End walls 23 and 24 of two adjacent elements 20 are formed in Direction seen, are slightly inclined outwards and only at their Collide lower edges.

Wesentlich bei dieser Anordnung ist auch, dass nicht nur die gewünschte V-Form für die Rastquerstege 13 erzielt wird, sondern darüber hinaus auch sichergestellt ist, dass die Rastquerstege 13 den optischen Anforderungen eines Reflektorrasters genügen und insbesondere keine Knicke, Unebenheiten oder dergleichen aufweisen. Der Grund hierfür liegt darin, dass beim Herstellen der Elemente 20 im Spritzgießverfahren an den Stirnwänden 23 und 24 keine Materialanhäufungen auftreten, welche beim späteren Erstarren des Kunststoffmaterials zu Unebenheiten führen könnten. Statt dessen können die Stirnwände 23 und 24 mit einer stetigen und kontinuierlichen Krümmung ohne Unebenheiten gebildet werden, so dass kein abrupter Übergang in den Reflexionseigenschaften auftritt. Zwar entsteht an der unteren Stoßstelle zweier benachbarter Elemente 20 zwangsläufig ein Übergang, dieser ist allerdings für einen Betrachter der Leuchte nur schwer erkennbar, da er von der Lichtquelle nicht beleuchtet wird.Essential in this arrangement is also that not only the desired V-shape for the Rastquerstege 13 is achieved, but beyond that it is also ensured that the Rastquerstege 13 meet the optical requirements of a reflector raster and in particular have no kinks, bumps or the like. Of the The reason for this is that when manufacturing the elements 20 in Injection molding on the end walls 23 and 24 no accumulation of material occur, which in later solidification of the plastic material to bumps could lead. Instead, the end walls 23 and 24 with a steady and continuous curvature without bumps are formed, so no Abrupt transition in the reflection properties occurs. Although arises at the bottom joint of two adjacent elements 20 inevitably a transition, However, this is difficult to see for a viewer of the lamp, since he is not illuminated by the light source.

Aufgrund der zuvor beschriebenen vorteilhaften optischen Eigenschaften, die sich beim Bilden eines Rastquerstegs 13 durch die Stirnwände 23 und 24 zweier benachbarter zusammengesetzter Elemente 20 ergeben, ist vorzugsweise vorgesehen, dass jede Reflektorkammer 12 der Reflektoranordnung 10 durch ein eigenes Element 20 gebildet wird. Es wäre allerdings auch denkbar, Elemente zu verwenden, die eine Gruppe von mehreren Reflektorkammern 12, beispielsweise zwei oder drei Reflektorkammern umfassen.Due to the above-described advantageous optical properties arising when forming a latching crosspiece 13 through the end walls 23 and 24 of two adjacent composite elements 20 is preferably provided, that each reflector chamber 12 of the reflector assembly 10 by a separate element 20 is formed. However, it would also be possible to use elements that have a Group of multiple reflector chambers 12, for example two or three Include reflector chambers.

Die erfindungsgemäße Reflektoranordnung 10 kann somit auf einfache Weise dadurch erstellt werden, dass eine Vielzahl der im Spritzgußverfahren hergestellten Elemente 20 zusammengefügt wird. Die durch die Verbindungselemente 25a, 25b und 26a, 26b erzeugten Nut-Feder-Verbindungen sorgen hierbei für einen zuverlässigen Halt, so dass insgesamt eine stabile Anordnung erzielt wird. Der Aufwand zum Erstellen der Reflektoranordnung 10 ist hierbei deutlich geringer als dies bislang beim Zusammenfügen vieler Einzelteile entsprechend dem Stand der Technik der Fall war. The reflector assembly 10 according to the invention can thus in a simple manner be created that a variety of injection-molded Elements 20 is joined together. The through the connecting elements 25a, 25b and 26a, 26b produced tongue and groove connections provide this for a Reliable hold, so that a total of a stable arrangement is achieved. Of the Effort for creating the reflector assembly 10 is significantly less than so far when joining many items according to the state of Technique was the case.

Anzumerken ist, dass anstelle ringförmiger Reflektoranordnungen selbstverständlich auch die Möglichkeit besteht, längliche gerade Reflektoranordnungen nach der erfindungsgemäßen Lehre zu bilden. Die Form der Elemente müßte dann dementsprechend derart geändert werden, dass diese keine Krümmung mehr aufweisen. Auch bei dieser Variante werden die Rastquerstege der Reflektoranordnung durch die Stirnwände aneinandergrenzender Elemente gebildet, wobei wiederum die zuvor beschriebenen Vorteile erzielt werden.It should be noted that, of course, instead of annular reflector arrangements also the possibility exists, elongated straight reflector arrangements after the to form the teaching of the invention. The shape of the elements would then have to Accordingly, be changed so that they no more curvature exhibit. Also in this variant, the Rastquerstege the Reflector arrangement formed by the end walls of adjacent elements, again achieving the advantages described above.

Ein Vorteil der erfindungsgemäßen Lösung beim Erstellen gerader Reflektoranordnungen besteht darin, dass durch die Anzahl der verwendeten Einzelteile in einfacher Weise die Länge der zu erstellenden Reflektoranordnung geändert werden kann. Es besteht somit die Möglichkeit, auf einfache Weise Reflektoranordnungen verschiedener Länge bereitzustellen, ohne dass hierfür ein Mehraufwand erforderlich wäre. Ferner wäre es auch möglich, komplexere Strukturen für Reflektoranordnungen zu bilden, sofern die einzelnen Elemente entsprechend geformt sind. Beispielsweise wäre denkbar, S- oder schlangenförmige Reflektoranordnungen zu bilden.An advantage of the inventive solution when creating straighter Reflector arrangements is that by the number of used Items in a simple way, the length of the reflector assembly to be created can be changed. There is thus a possibility in a simple way To provide reflector assemblies of different lengths without this one Additional effort would be required. It would also be possible to have more complex ones Form structures for reflector assemblies, provided the individual elements are shaped accordingly. For example, would be conceivable, S or snake-shaped To form reflector assemblies.

Insgesamt gesehen bietet somit die vorliegende Erfindung eine Lösung, Reflektoranordnungen auch komplexerer Formen in einfacher und schneller Weise zu erstellen. Die mit Hilfe der zusammengesetzten Elemente gebildete Reflektoranordnung weist ferner auch hervorragende optische Eigenschaften auf, weshalb sie auch bei anspruchsvollen Beleuchtungssituationen zum Einsatz kommen kann.Overall, therefore, the present invention provides a solution Reflector arrangements of even more complex forms in a simple and fast way too create. The formed with the help of composite elements Reflector assembly also has excellent optical properties, which is why they are also used in demanding lighting situations can.

Claims (14)

Reflektoranordnung (10) für eine Leuchte (1) mit mehreren in Reihe angeordneten Reflektorkammern (12),
dadurch gekennzeichnet, dass die Reflektorkammern (12) oder Gruppen davon separate Elemente (20) sind, die zum Zusammensetzen geeignet und bestimmt sind, derart, dass sie als Ganzes die Reflektoranordnung (10) bilden.Reflector arrangement (10) for a luminaire (1) with a plurality of reflector chambers (12) arranged in series,
characterized in that the reflector chambers (12) or groups thereof are separate elements (20) which are suitable and intended for assembly, such that they form as a whole the reflector arrangement (10). Reflektoranordnung nach Anspruch 1,
dadurch gekennzeichnet, dass die Reflektorkammern (12) durch Rastquerstege (13) voneinander getrennt sind, wobei die nebeneinander liegenden Stirnwände (23, 24) zweier aneinandergrenzender Elemente (20) einen Rastquersteg (13) bilden.Reflector arrangement according to claim 1,
characterized in that the reflector chambers (12) are separated by latching transverse webs (13), wherein the adjacent end walls (23, 24) of two adjacent elements (20) form a latching transverse web (13). Reflektoranordnung nach Anspruch 2,
dadurch gekennzeichnet, dass die Stirnwände (23, 24) der Elemente (20) - in Abstrahlrichtung gesehen - nach außen geneigt sind, derart, das ein von zwei aneinandergrenzenden Elementen (20) gebildeter Rastquersteg (13) im wesentlichen V-förmig ist.Reflector arrangement according to claim 2,
characterized in that the end walls (23, 24) of the elements (20) - as seen in the direction of radiation - are inclined outwardly, such that one of two adjacent elements (20) formed Rastquersteg (13) is substantially V-shaped. Reflektoranordnung nach Anspruch 3,
dadurch gekennzeichnet, dass die Stirnwände (23, 24) an ihren Unterkanten aneinanderstoßen.Reflector arrangement according to claim 3,
characterized in that the end walls (23, 24) abut against each other at their lower edges. Reflektoranordnung nach einem der vorherigen Ansprüche,
dadurch gekennzeichnet, dass die Elemente (20) durch eine separates Halteelement zusammengehalten sind.Reflector arrangement according to one of the preceding claims,
characterized in that the elements (20) are held together by a separate retaining element. Reflektoranordnung nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet, dass die Elemente (20) jeweils eigene Verbindungsmittel (25a, 25b, 26a, 26b) zum Verbinden untereinander aufweisen.Reflector arrangement according to one of claims 1 to 4,
characterized in that the elements (20) each have their own connection means (25a, 25b, 26a, 26b) for connection to one another. Reflektoranordnung nach Anspruch 6,
dadurch gekennzeichnet, dass die Verbindungsmittel (25a, 25b, 26a, 26b) Nut-Feder-Verbindungen bilden. Reflector arrangement according to claim 6,
characterized in that the connecting means (25a, 25b, 26a, 26b) form tongue and groove joints. Reflektoranordnung nach einem der vorherigen Ansprüche,
dadurch gekennzeichnet, dass die Elemente (20) aus Kunststoff bestehen.Reflector arrangement according to one of the preceding claims,
characterized in that the elements (20) consist of plastic. Reflektoranordnung nach Anspruch 8,
dadurch gekennzeichnet, dass die Elemente (20) im Spritzgießverfahren hergestellt sind.Reflector arrangement according to claim 8,
characterized in that the elements (20) are made by injection molding. Reflektoranordnung nach einem der vorherigen Ansprüche,
dadurch gekennzeichnet, dass die Reflektorkammern (12) jeweils durch ein einzelnes Element (20) gebildet sind.Reflector arrangement according to one of the preceding claims,
characterized in that the reflector chambers (12) are each formed by a single element (20). Reflektoranordnung nach einem der vorherigen Ansprüche,
dadurch gekennzeichnet, dass die Elemente (20) zur einer geraden Reflektoranordnung (10) zusammengesetzt sind.Reflector arrangement according to one of the preceding claims,
characterized in that the elements (20) to a straight reflector assembly (10) are composed. Reflektoranordnung nach einem der Ansprüche 1 bis 10,
dadurch gekennzeichnet, dass die Elemente (20) gekrümmt sind und zu einer ringförmigen Struktur zusammengesetzt sind.Reflector arrangement according to one of claims 1 to 10,
characterized in that the elements (20) are curved and assembled into an annular structure. Leuchte (1) mit einer länglichen Lichtquelle (5) sowie einer - in Abstrahlrichtung gesehen - vor der Lichtquelle (5) angeordneten Reflektoranordnung (10),
dadurch gekennzeichnet, dass die Reflektoranordnung (10) nach einem der Ansprüche 1 bis 12 ausgestaltet ist.Luminaire (1) with an elongated light source (5) and a reflector arrangement (10) arranged in front of the light source (5) in the emission direction,
characterized in that the reflector assembly (10) is designed according to one of claims 1 to 12. Reflektorelement (20), welches eine Reflektorkammer (12) oder eine Gruppe von Reflektorkammern (12) bildet und welches zum Zusammensetzen mit weiteren gleichartigen Reflektorelementen (20) geeignet und bestimmt sind, derart, dass die zusammengesetzten Elemente (20) als Ganzes eine Reflektoranordnung (10) für eine Leuchte bilden.Reflector element (20), which is a reflector chamber (12) or a group of Reflector chambers (12) forms and which for assembly with others similar reflector elements (20) are suitable and determined, such that the composite elements (20) as a whole a reflector assembly (10) for a Make up the light.
EP05002418A 2004-02-06 2005-02-04 Reflector assembly for a luminaire with a plurality of reflector chambers arranged in a row Not-in-force EP1561994B1 (en)

Applications Claiming Priority (2)

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DE102004005917A DE102004005917A1 (en) 2004-02-06 2004-02-06 Reflector arrangement for a luminaire with a plurality of reflector chambers arranged in series
DE102004005917 2004-02-06

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DE102004005917A1 (en) 2005-08-25
EP1561994A3 (en) 2007-03-28
EP1561994B1 (en) 2008-08-20
ATE405792T1 (en) 2008-09-15

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