EP1519103B1 - Lamp with an elongated gas discharge lamp - Google Patents

Lamp with an elongated gas discharge lamp Download PDF

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Publication number
EP1519103B1
EP1519103B1 EP04022846A EP04022846A EP1519103B1 EP 1519103 B1 EP1519103 B1 EP 1519103B1 EP 04022846 A EP04022846 A EP 04022846A EP 04022846 A EP04022846 A EP 04022846A EP 1519103 B1 EP1519103 B1 EP 1519103B1
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EP
European Patent Office
Prior art keywords
lamp
reflector
luminaire according
luminaire
light influencing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP04022846A
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German (de)
French (fr)
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EP1519103A1 (en
Inventor
Simona Loga
Georg Kempter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZUMTOBEL LIGHTING GmbH
Original Assignee
Zumtobel Lighting GmbH Austria
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Publication of EP1519103A1 publication Critical patent/EP1519103A1/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/04—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
    • F21V13/12—Combinations of only three kinds of elements
    • 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
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/16—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting
    • F21V17/164—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting the parts being subjected to bending, e.g. snap joints
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
    • F21V11/08—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using diaphragms containing one or more apertures
    • F21V11/14—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using diaphragms containing one or more apertures with many small apertures
    • 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
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/104—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening using feather joints, e.g. tongues and grooves, with or without friction
    • 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
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/18—Latch-type fastening, e.g. with rotary action
    • 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
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/40—Lighting for industrial, commercial, recreational or military use
    • F21W2131/402—Lighting for industrial, commercial, recreational or military use for working places
    • 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

Definitions

  • the present invention relates to a luminaire with a tubular gas discharge lamp and a concave curved reflector, in front of which light influencing elements are arranged on both sides of the lamp.
  • a generic lamp is known for example from DE 100 06 410 A1 of the applicant and will be explained below with reference to FIG. 3 briefly.
  • the individual elements of the lamp 100 are arranged within a box-shaped lamp housing 107, which is sunk during assembly of the lamp in the ceiling of a room to be illuminated.
  • As the light source is a rod-shaped gas discharge lamp 101, below or - seen in the emission direction - in front of a consisting of side reflectors and cross blades grid 106 is arranged. The majority of the light emitted by the lamp 101 is emitted via this grid 106 downwards.
  • the gas discharge lamp 101 is further straddled by a concave reflector 102, the side wings of which are arranged substantially next to the lamp 101.
  • a diffuser 103 is arranged, which together with the reflector 102 includes two laterally adjacent to the lamp 101 so-called light chambers 104.
  • the diffuser 103 and the reflector 102 converge at their ends remote from the lamp 101, respectively.
  • a portion of the light emitted by the lamp 101 is coupled via the so-called light entry surfaces provided with the reference numeral 105 into the two light chambers 104, reflected on the reflector 102 and emitted via the diffuser 103 downwards.
  • the area of the luminaire 100 surrounding the luminous grid 106 is likewise slightly brightened, as a result of which a visually appealing lighting effect is achieved.
  • the special configuration of the light chambers 104 has the consequence that the desired optical effect is achieved even at a very low height or depth of the lamp housing 107.
  • the ratio of the width a of a light chamber 104 to the height b of the light entrance surface 105 is in the range of approximately 4: 1.
  • the diffuser 103 is integrally formed in the known lamp and forms a self-supporting plastic part.
  • the plastic part is concavely curved in its two side areas and has a central Ausknickung, which connects the curved side areas together and surrounds the lamp 101 in its upper region.
  • the side areas of the buckling thereby form the light entry surfaces 105 for the two light chambers 104.
  • Such a plastic part is manufactured, for example, from polymethyl methacrylate (PMMA) by injection molding.
  • the one-piece design of the diffuser is considered disadvantageous insofar as this limits the possibilities of varying the dimensions of the luminaire.
  • the reason for this is that for the production of the one-piece diffuser a specially prefabricated tool is required, which is only suitable for the production of the diffuser in these specific dimensions. If a luminaire with other dimensions is to be produced, then another tool for producing a corresponding plastic part with the new dimensions would have to be provided for this purpose, which, however, would considerably increase the manufacturing costs for the luminaire as a whole.
  • the one-piece diffuser in the specific form shown can only be made of PMMA.
  • this material does not meet the relevant fire safety requirements in some countries of the European Union (eg France).
  • the diffuser should consist of the somewhat more resistant material polycarbonate (PC).
  • PC polycarbonate
  • Another problem with the one-piece design of the diffuser 103 is further that it can lead to heat accumulation in the area surrounding the lamp 101, which among other things leads to a reduction of the luminaire performance.
  • the present invention is therefore based on the object; to provide a lamp of the type described above, with the same lighting effects as in the known lamp can be achieved, but the aforementioned disadvantages are avoided. It should still be a simple Assembly of the various components within the luminaire housing are made possible.
  • the object is achieved by a luminaire, which has the features of claim 1, or by a mounting element according to claim 19.
  • the lamp according to the invention initially has a arranged in a lamp housing tubular gas discharge lamp, the lamp cross and with its side areas - seen from the area to be illuminated - arranged on both sides of the lamp concave reflector and also on both sides next to the lamp but before the reflector arranged light influencing elements.
  • the reflector and the light influencing elements are joined together by means of at least one mounting element to form a unit which can be mounted or dismounted as a whole in the luminaire housing.
  • a structural unit is thus created by the use of the novel mounting element, the central elements of the reflector and the two lateral light influencing elements - which may be in particular diffusers - are and the whole removed from the luminaire housing or in this can be used.
  • the installation of the lamp as a whole is thus very simple.
  • the mounting element according to the invention makes it possible to form the diffuser - in contrast to the known lamp - from two separate components. It is therefore no longer necessary to use a one-piece, complex plastic part, which is why the cost of producing the lamp is extremely reduced. In particular, it is possible to form the arranged on both sides of the lamp diffuser of flat plates.
  • the novel design of the luminaire now also makes it possible to use other light influencing means, for example perforated plates or prismatic panes, instead of diffuser panes, as radiating elements for the two light chambers. There are thus additional possibilities for the design of the luminaire, which opens up further fields of application.
  • a further advantage deriving from the design according to the invention consists in the fact that the light entry surfaces provided with the reference symbol 105 in FIG. 3 are no longer covered, that is to say in addition to the lamp arranged light chambers are open to the tubular gas discharge lamp. On the one hand, this increases the proportion of light which is coupled into the light chambers, and on the other hand, heat accumulation in the region of the lamp and thus a loss of efficiency and a lower light output can be avoided.
  • the mounting element according to the invention is preferably designed bow-shaped and consists of two laterally projecting side arms for holding the reflector and a middle region connecting the side arms together.
  • the side arms can each be concavely curved and hold the reflector in the desired shape or determine the curvature of the reflector.
  • the middle region may have two feet arranged perpendicular to the extension direction of the side arms, which in the assembled state are arranged on both sides next to the gas discharge lamp and have holding means for holding further light-influencing elements.
  • These holding means can be realized in the form of slots, in which the other light influencing elements can be inserted. For example, this makes it possible to arrange color filters in the two transitional regions to the light chambers and to thereby give the light emitted via the light chambers a different hue.
  • the feet of the bow-shaped mounting member further preferably have projections into which the light influencing elements arranged next to the lamp can be suspended. In their end regions facing away from the lamp, the light-influencing elements are then preferably clamped to the reflector, so that the desired assembly of reflector, diffusers and mounting elements is achieved.
  • a further light-influencing element can also be arranged, which may in particular be a luminaire grid or a perforated plate. Also, this element is preferably clipped to the underside of the mounting member, so that no further fastening means are required.
  • a lamp is created, which opens at least the same possibilities as the known light shown in Figure 3 in terms of their lighting properties, but the present lamp can be made easier and cheaper. At the same time created a way to easily mount the essential components of the lamp in a housing.
  • the bow-shaped and preferably made of metal mounting element 10 shown in Figure 1 consists of a central region 11 from which two side arms 12 extend laterally.
  • the side arms 12 are slightly concave curved and have at their ends in each case rotatable latching wings 13, which are provided for latching with the reflector.
  • the middle region 11 consists of two feet 14 which are arranged perpendicular to the extension direction of the side arms 12 and which have latching hooks or projections 16 for holding the light influencing elements terminating the light chambers at their lower end regions.
  • the feet 14 are arranged in the assembled state of the assembly on both sides next to the lamp or the lamps and also have two extending in the longitudinal direction of the feet slit 15, in which additional light influencing elements can be inserted. These inserted light influencing elements are then in the assembled state in the transition region from the light sources to the light chambers and thus influence the light emitted via the light chambers.
  • 15 color filters are inserted into the slots, whereby the two light chambers appear in a changed compared to the directly emitted light of the lamps hue.
  • a fastening tab 17 is further provided, with the aid of the mounting member 10 and thus the entire of the Mounting elements, the reflector and the light influencing elements existing unit can be anchored in a light housing.
  • FIG. 2 shows the lamp 1 according to the invention in its entirety.
  • the elements are arranged in a box-shaped lamp housing 20, which is sunk by means of - not shown - mounting means in the ceiling of a room to be illuminated.
  • the light source is a gas discharge lamp 2, under which a consisting of side reflectors and cross blades light grid 6 is arranged.
  • a large part of the light emitted by the lamp 1, which is preferably a fluorescent lamp, is emitted downwards via the grid 6, the structures and dimensions of the reflectors and laminates being selected in such a way are that this downwardly emitted light is to some degree cross-faded.
  • the luminaire according to the invention is therefore particularly suitable for illuminating rooms with VDU workstations, since dazzling effects on screen surfaces as well as persons present in the room are largely avoided.
  • a perforated plate which is deposited for example with foils, or other optical elements could be used, for example diffusers or prismatic structures.
  • the lamp 1 it is also possible to equip the lamp 1 with a plurality of gas discharge lamps.
  • the light chambers 5 are first formed by a reflector 3, which engages over the central region of the lamp 1 with the lamp 2 and with its two side areas - seen from the area to be illuminated - next to the lamp 1 is arranged.
  • a diffuser plate 4 is arranged in each case in front of the side areas of the reflector 3, wherein the reflector 3 and the two diffuser plates 4 converge at the ends remote from the lamp 2 and thus enclose the light chambers 5.
  • the light entry surfaces for the two light chambers 5 are each bounded by the upper edges of the grid 6 and the reflector 3. Since the diffuser plates 4 each extend to the upper edge of the corresponding side wall of the grid 6, it is avoided that the above Grid arranged lamp 2 seen from the side can be viewed directly and thus dazzling effects arise.
  • the arrangement and mounting of the reflector 3 and the diffusers 4 in the manner shown takes place primarily by two distributed in the longitudinal direction of the lamp 2 arranged mounting elements 10.
  • the mounting elements 10 thereby pass through two arranged in the reflector 3 slots such that they with their Side arms 12 are arranged above the reflector 3 and with their feet 14 below the reflector 3.
  • An attachment of the reflector 3 to the mounting elements 10 takes place with the aid of the latching wings 13, which pass through additional latching slots in the reflector 3 and lock after twisting the same with this.
  • the side wings 12 of the mounting elements 10 rest on the top of the reflector 3 and maintain or determine the curvature of the reflector.
  • the reflector 3 is curved under bias whereby it is also able to hold the diffuser plates 4 at their outer areas at the same time.
  • the reflector 3 in its end regions Umkröpfonne 3a, in which the end portions of the diffuser plates 4 can engage.
  • the diffuser plates 4 engage with their edge regions 4a in the latching projections 16 of the mounting element 10.
  • this one consisting of the two mounting elements 10, the reflector 3 and the two diffuser plates 4 assembly is formed, which can be used as a whole in the housing 20 of the lamp 1 and mounted or disassembled.
  • the anchoring of this structural unit in the housing 20 takes place on the one hand by the mounting elements 10 and their mounting tabs 17 and on the other by the two edge portions 3a of the reflector 3, which engage in corresponding recesses 21 of the housing 20.
  • the two diffusers 4 can be formed from plastic plates which no longer have to be produced by injection molding.
  • luminaires in various dimensions can be realized without additional cost, since the cutting of plastic plates in the desired sizes is much easier to perform.
  • the diffuser plates can now optionally be made of PMMA or PC.
  • a luminaire is thus created by the present invention, which is comparable in terms of their lighting properties with the previously known lamp. Also, the appearance of the present lamp is substantially similar to the already known lamp, but the production is significantly simplified and made cheaper by the present invention. In addition, the assembly and disassembly of the lamp is made particularly simple and elegant by the assembly according to the invention.

Abstract

A lamp (1) with at least one tubular gas discharge tube (2) in lamp housing (20), a concave reflector (3), light producing elements (LPE) (4), where the reflector and LPE form a single unit with the aid of at least one mounting element (10), which can be mounted in or removed from housing (20). An independent claim is included for a mounting element (10).

Description

Die vorliegende Erfindung betrifft eine Leuchte mit einer rohrförmigen Gasentladungslampe sowie einem konkav gekrümmten Reflektor, vor dem zu beiden Seiten der Lampe Lichtbeeinflussungselemente angeordnet sind.The present invention relates to a luminaire with a tubular gas discharge lamp and a concave curved reflector, in front of which light influencing elements are arranged on both sides of the lamp.

Eine gattungsgemäße Leuchte ist beispielsweise aus der DE 100 06 410 A1 der Anmelderin bekannt und soll nachfolgend anhand von Fig. 3 kurz erläutert werden. Die einzelnen Elemente der Leuchte 100 sind dabei innerhalb eines kastenförmigen Leuchtengehäuses 107 angeordnet, das bei der Montage der Leuchte in der Decke eines zu beleuchtenden Raumes versenkt wird. Als Lichtquelle dient eine stabförmige Gasentladungslampe 101, unter der bzw. - in Abstrahlrichtung gesehen - vor der ein aus Seitenreflektoren und Querlamellen bestehendes Raster 106 angeordnet ist. Der Großteil des von der Lampe 101 abgegebenen Lichts wird über dieses Raster 106 nach unten abgestrahlt.A generic lamp is known for example from DE 100 06 410 A1 of the applicant and will be explained below with reference to FIG. 3 briefly. The individual elements of the lamp 100 are arranged within a box-shaped lamp housing 107, which is sunk during assembly of the lamp in the ceiling of a room to be illuminated. As the light source is a rod-shaped gas discharge lamp 101, below or - seen in the emission direction - in front of a consisting of side reflectors and cross blades grid 106 is arranged. The majority of the light emitted by the lamp 101 is emitted via this grid 106 downwards.

Die Gasentladungslampe 101 wird ferner von einem konkav gekrümmten Reflektor 102 überspannt, dessen Seitenflügel im Wesentlichen neben der Lampe 101 angeordnet sind. Vor den Seitenflügeln des Reflektors 102 und damit ebenfalls zu beiden Seiten neben der Lampe 101 ist ein Diffusor 103 angeordnet, der gemeinsam mit dem Reflektor 102 zwei seitlich neben der Lampe 101 angeordnete sogenannte Lichtkammern 104 einschließt. Hierzu laufen der Diffusor 103 und der Reflektor 102 jeweils an ihren von der Lampe 101 entfernten Enden zusammen.The gas discharge lamp 101 is further straddled by a concave reflector 102, the side wings of which are arranged substantially next to the lamp 101. In front of the side wings of the reflector 102 and thus also on both sides next to the lamp 101, a diffuser 103 is arranged, which together with the reflector 102 includes two laterally adjacent to the lamp 101 so-called light chambers 104. For this purpose, the diffuser 103 and the reflector 102 converge at their ends remote from the lamp 101, respectively.

Ein Teil des von der Lampe 101 abgegebenen Lichts wird über die mit dem Bezugszeichen 105 versehenen sogenannten Lichteintrittsflächen in die beiden Lichtkammern 104 eingekoppelt, an dem Reflektor 102 reflektiert und über den Diffusor 103 nach unten abgestrahlt. Hierdurch wird der das Leuchtenraster 106 umgebende Bereich der Leuchte 100 ebenfalls leicht aufgehellt, wodurch ein optisch ansprechender Beleuchtungseffekt erzielt wird. Die besondere Ausgestaltung der Lichtkammern 104 hat dabei zur Folge, dass der angestrebte optische Effekt bereits bei einer sehr geringen Bauhöhe bzw. Tiefe des Leuchtengehäuses 107 erzielt wird. So liegt beispielsweise das Verhältnis der Breite a einer Lichtkammer 104 zur Höhe b der Lichteintrittsfläche 105 im Bereich von etwa 4:1.A portion of the light emitted by the lamp 101 is coupled via the so-called light entry surfaces provided with the reference numeral 105 into the two light chambers 104, reflected on the reflector 102 and emitted via the diffuser 103 downwards. As a result, the area of the luminaire 100 surrounding the luminous grid 106 is likewise slightly brightened, as a result of which a visually appealing lighting effect is achieved. The special configuration of the light chambers 104 has the consequence that the desired optical effect is achieved even at a very low height or depth of the lamp housing 107. For example, the ratio of the width a of a light chamber 104 to the height b of the light entrance surface 105 is in the range of approximately 4: 1.

Obwohl diese bekannte Leuchte aufgrund der hervorragenden optischen Eigenschaften breite Akzeptanz gefunden und sich in verschiedensten Anwendungsgebieten bewährt hat, bestehen Bestrebungen, den Aufbau der Leuchte weiter zu vereinfachen. Wie in Figur 3 dargestellt ist, ist bei der bekannten Leuchte der Diffusor 103 einstückig ausgebildet und bildet ein selbstragendes Kunststoffteil. Das Kunststoffteil ist dabei in seinen beiden Seitenbereichen konkav gekrümmt und besitzt eine zentrale Ausknickung, welche die gekrümmten Seitenbereiche miteinander verbindet und die Lampe 101 in ihrem oberen Bereich umgibt. Die Seitenbereiche der Ausknickung bilden dabei die Lichteintrittsflächen 105 für die beiden Lichtkammern 104. Ein derartiges Kunststoffteil wird beispielsweise aus Polymethylmethacrylat (PMMA) im Spritzgießverfahren gefertigt.Although this known lamp due to the excellent optical properties found wide acceptance and in a variety of Application has proven successful, there are efforts to simplify the construction of the lamp on. As shown in Figure 3, the diffuser 103 is integrally formed in the known lamp and forms a self-supporting plastic part. The plastic part is concavely curved in its two side areas and has a central Ausknickung, which connects the curved side areas together and surrounds the lamp 101 in its upper region. The side areas of the buckling thereby form the light entry surfaces 105 for the two light chambers 104. Such a plastic part is manufactured, for example, from polymethyl methacrylate (PMMA) by injection molding.

Die einteilige Ausgestaltung des Diffusors wird insofern als nachteilig angesehen, als hierdurch die Möglichkeiten, die Abmessungen der Leuchte zu variieren, eingeschränkt werden. Der Grund hierfür ist, dass zur Herstellung des einstückigen Diffusors ein speziell vorgefertigtes Werkzeug erforderlich ist, welches ausschließlich zur Herstellung des Diffusors in diesen bestimmten Abmessungen geeignet ist. Soll nun eine Leuchte mit anderen Abmessungen erstellt werden, so müsste hierfür ein weiteres Werkzeug zur Erstellung eines entsprechenden Kunststoffteiles mit den neuen Abmessungen bereitgestellt werden, wodurch jedoch die Herstellungskosten für die Leuchte insgesamt beträchtlich erhöht würden.The one-piece design of the diffuser is considered disadvantageous insofar as this limits the possibilities of varying the dimensions of the luminaire. The reason for this is that for the production of the one-piece diffuser a specially prefabricated tool is required, which is only suitable for the production of the diffuser in these specific dimensions. If a luminaire with other dimensions is to be produced, then another tool for producing a corresponding plastic part with the new dimensions would have to be provided for this purpose, which, however, would considerably increase the manufacturing costs for the luminaire as a whole.

Ein weiterer Nachteil besteht darin, dass der einstückige Diffusor in der dargestellten speziellen Form lediglich aus PMMA hergestellt werden kann. Dieses Material erfüllt in einigen Ländern der Europäischen Union (z.B. Frankreich) jedoch nicht die einschlägigen Brandschutzanforderungen. Um diese einzuhalten, müsste der Diffusor aus dem etwas widerstandsfähigeren Material Polycarbonat (PC) bestehen. Zwar ist es möglich, auch PC-Kunststoffteile im Spritzgießverfahren herzustellen, allerdings müsste hierfür wiederum ein eigenes Werkzeug verwendet werden, da Polycarbonat ein anderes Schrumpfverhalten als PMMA aufweist und somit die Maße nach dem Abkühlen des Kunststoffteils nicht mehr der Norm entsprechen würden.Another disadvantage is that the one-piece diffuser in the specific form shown can only be made of PMMA. However, this material does not meet the relevant fire safety requirements in some countries of the European Union (eg France). To comply with this, the diffuser should consist of the somewhat more resistant material polycarbonate (PC). Although it is possible to produce PC plastic parts by injection molding, but this in turn would have its own tool can be used because polycarbonate has a different shrinkage behavior than PMMA and thus the dimensions would not correspond to the standard after cooling of the plastic part.

Ein weiteres Problem bei der einstückigen Ausgestaltung des Diffusors 103 besteht ferner darin, dass es zu einem Wärmestau in dem die Lampe 101 umgebenen Bereich kommen kann, der unter anderem zu einer Reduzierung der Leuchtenleistung führt.Another problem with the one-piece design of the diffuser 103 is further that it can lead to heat accumulation in the area surrounding the lamp 101, which among other things leads to a reduction of the luminaire performance.

Der vorliegenden Erfindung liegt deshalb die Aufgabe zugrunde; eine Leuchte der eingangs beschriebenen Art zu schaffen, mit der die gleichen lichttechnischen Effekte wie bei der bekannten Leuchte erzielt werden können, wobei jedoch die zuvor genannten Nachteile vermieden werden. Dabei soll nach wie vor eine einfache Montage der verschiedenen Bauteile innerhalb des Leuchtengehäuses ermöglicht werden.The present invention is therefore based on the object; to provide a lamp of the type described above, with the same lighting effects as in the known lamp can be achieved, but the aforementioned disadvantages are avoided. It should still be a simple Assembly of the various components within the luminaire housing are made possible.

Die Aufgabe wird durch eine Leuchte, welche die Merkmale des Anspruchs 1 aufweist, bzw. durch ein Montageelement gemäß Anspruch 19 gelöst.The object is achieved by a luminaire, which has the features of claim 1, or by a mounting element according to claim 19.

Die erfindungsgemäße Leuchte besitzt zunächst eine in einem Leuchtengehäuse angeordnete rohrförmige Gasentladungslampe, einen die Lampe übergreifenden und mit seinen Seitenbereichen - von dem zu beleuchtenden Bereich aus gesehen - zu beiden Seiten neben der Lampe angeordneten konkav gekrümmten Reflektor sowie ebenfalls zu beiden Seiten neben der Lampe aber vor dem Reflektor angeordnete Lichtbeeinflussungselemente. Erfindungsgemäß sind der Reflektor und die Lichtbeeinflussungselemente mit Hilfe mindestens eines Montageelements zu einer Einheit zusammengefügt, welche als Gesamtheit in dem Leuchtengehäuse montierbar bzw. demontierbar ist.The lamp according to the invention initially has a arranged in a lamp housing tubular gas discharge lamp, the lamp cross and with its side areas - seen from the area to be illuminated - arranged on both sides of the lamp concave reflector and also on both sides next to the lamp but before the reflector arranged light influencing elements. According to the invention, the reflector and the light influencing elements are joined together by means of at least one mounting element to form a unit which can be mounted or dismounted as a whole in the luminaire housing.

Gemäß der vorliegenden Erfindung wird somit durch die Verwendung des neuartigen Montageelements eine Baueinheit geschaffen, deren zentrale Elemente der Reflektor sowie die beiden seitlichen Lichtbeeinflussungselemente - bei denen es sich insbesondere um Diffusoren handeln kann - sind und die im Ganzen aus dem Leuchtengehäuse entfernt bzw. in dieses eingesetzt werden kann. Die Montage der Leuchte insgesamt ist somit sehr einfach.According to the present invention, a structural unit is thus created by the use of the novel mounting element, the central elements of the reflector and the two lateral light influencing elements - which may be in particular diffusers - are and the whole removed from the luminaire housing or in this can be used. The installation of the lamp as a whole is thus very simple.

Die Verwendung des erfindungsgemäßen Montageelements gestattet es dabei, den Diffusor - im Gegensatz zu der bekannten Leuchte - aus zwei getrennten Bauelementen zu bilden. Es ist also nicht mehr erforderlich, ein einstückiges, komplexes Kunststoffteil zu verwenden, weshalb der Aufwand zur Herstellung der Leuchte extrem reduziert wird. Insbesondere besteht die Möglichkeit, den zu beiden Seiten neben der Lampe angeordneten Diffusor aus ebenen Platten zu bilden. Die neuartige Ausgestaltung der Leuchte ermöglichst es nunmehr allerdings auch, anstelle von Diffusorscheiben andere Lichtbeeinflussungsmittel - beispielsweise Lochbleche oder Prismenscheiben - als Abstrahlelemente für die beiden Lichtkammern zu verwenden. Es bestehen damit zusätzliche Möglichkeiten zur Ausgestaltung der Leuchte, wodurch weitere Anwendungsgebiete erschlossen werden.The use of the mounting element according to the invention makes it possible to form the diffuser - in contrast to the known lamp - from two separate components. It is therefore no longer necessary to use a one-piece, complex plastic part, which is why the cost of producing the lamp is extremely reduced. In particular, it is possible to form the arranged on both sides of the lamp diffuser of flat plates. However, the novel design of the luminaire now also makes it possible to use other light influencing means, for example perforated plates or prismatic panes, instead of diffuser panes, as radiating elements for the two light chambers. There are thus additional possibilities for the design of the luminaire, which opens up further fields of application.

Ein sich aus der erfindungsgemäßen Ausgestaltung ergebener weiterer Vorteil besteht darin, dass die in Figur 3 mit den Bezugszeichen 105 versehenen Lichteintrittsflächen nicht mehr abgedeckt sind, d.h. die neben der Lampe angeordneten Lichtkammern sind zu der rohrförmigen Gasentladungslampe hin offen. Zum Einen wird hierdurch der Anteil an Licht, der in die Lichtkammern eingekoppelt wird, erhöht, zum Anderen kann ein Wärmestau im Bereich der Lampe und damit ein Wirkungsverlust und eine geringere Lichtausbeute vermieden werden.A further advantage deriving from the design according to the invention consists in the fact that the light entry surfaces provided with the reference symbol 105 in FIG. 3 are no longer covered, that is to say in addition to the lamp arranged light chambers are open to the tubular gas discharge lamp. On the one hand, this increases the proportion of light which is coupled into the light chambers, and on the other hand, heat accumulation in the region of the lamp and thus a loss of efficiency and a lower light output can be avoided.

Das erfindungsgemäße Montageelement, von dem vorzugsweise zwei zur Bildung der Baueinheit verwendet werden, ist vorzugsweise bügelartig ausgestaltet und besteht aus zwei seitlich abstehenden Seitenarmen zum Halten des Reflektors sowie aus einem die Seitenarme miteinander verbindenden Mittelbereich. Die Seitenarme können dabei jeweils konkav gekrümmt sein und den Reflektor in der gewünschten Form halten bzw. die Krümmung des Reflektors bestimmen. Der Mittelbereich kann zwei senkrecht zur Erstreckungsrichtung der Seitenarme angeordnete Füße aufweisen, welche im montierten Zustand zu beiden Seiten neben der Gasentladungslampe angeordnet sind und Haltemittel zur Halterung weiterer Lichtbeeinflussungselemente aufweisen. Diese Haltemittel können in Form von Schlitzen realisiert werden, in welche die weiteren Lichtbeeinflussungselemente eingeschoben werden können. Beispielsweise besteht hierdurch die Möglichkeit, in den beiden Übergangsbereichen zu den Lichtkammern Farbfilter anzuordnen und hiermit dem über die Lichtkammern abgestrahlten Licht einen anderen Farbton zu verleihen.The mounting element according to the invention, preferably two of which are used to form the structural unit, is preferably designed bow-shaped and consists of two laterally projecting side arms for holding the reflector and a middle region connecting the side arms together. The side arms can each be concavely curved and hold the reflector in the desired shape or determine the curvature of the reflector. The middle region may have two feet arranged perpendicular to the extension direction of the side arms, which in the assembled state are arranged on both sides next to the gas discharge lamp and have holding means for holding further light-influencing elements. These holding means can be realized in the form of slots, in which the other light influencing elements can be inserted. For example, this makes it possible to arrange color filters in the two transitional regions to the light chambers and to thereby give the light emitted via the light chambers a different hue.

Die Füße des bügelartigen Montageelements weisen ferner vorzugsweise Vorsprünge auf, in welche die neben der Lampe angeordneten Lichtbeeinflussungselemente eingehängt werden können. In ihren der Lampe abgewandten Endbereichen sind die Lichtbeeinflussungselemente dann vorzugsweise mit dem Reflektor verklemmt, so dass die angestrebte Baueinheit aus Reflektor, Diffusoren und Montageelementen erzielt wird.The feet of the bow-shaped mounting member further preferably have projections into which the light influencing elements arranged next to the lamp can be suspended. In their end regions facing away from the lamp, the light-influencing elements are then preferably clamped to the reflector, so that the desired assembly of reflector, diffusers and mounting elements is achieved.

Vor der Lampe kann ferner ein weiteres Lichtbeeinflussungselement angeordnet werden, bei dem es sich insbesondere um ein Leuchtenraster oder um ein Lochblech handeln kann. Auch dieses Element wird vorzugsweise an die Unterseite des Montageelements angeklippst, so dass keine weiteren Befestigungsmittel erforderlich sind.In front of the lamp, a further light-influencing element can also be arranged, which may in particular be a luminaire grid or a perforated plate. Also, this element is preferably clipped to the underside of the mounting member, so that no further fastening means are required.

Insgesamt gesehen wird somit eine Leuchte geschaffen, welche hinsichtlich ihrer lichttechnischen Eigenschaften zumindest die gleichen Möglichkeiten wie die in Figur 3 dargestellte bekannte Leuchte eröffnet, wobei jedoch die vorliegende Leuchte einfacher und kostengünstiger hergestellt werden kann. Gleichzeitig wird eine Möglichkeit geschaffen, die wesentlichen Bestandteile der Leuchte auf einfache Weise in einem Gehäuse zu montieren.Overall, therefore, a lamp is created, which opens at least the same possibilities as the known light shown in Figure 3 in terms of their lighting properties, but the present lamp can be made easier and cheaper. At the same time created a way to easily mount the essential components of the lamp in a housing.

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

Fig. 1
ein erfindungsgemäßes Montageelement;
Fig. 2
die erfindungsgemäße Leuchte im Schnitt; und
Fig. 3
eine aus dem Stand der Technik bekannte Leuchte.
The invention will be explained in more detail with reference to the accompanying drawings. Show it:
Fig. 1
an inventive mounting element;
Fig. 2
the luminaire according to the invention in section; and
Fig. 3
a known from the prior art lamp.

Bevor die erfindungsgemäße Leuchte in ihrer Gesamtheit besprochen wird, soll zunächst anhand von Figur 1 das zentrale Element der vorliegenden Erfindung, nämlich das für die Bildung der Baueinheit verantwortliche Montageelement erläutert werden.Before the luminaire according to the invention is discussed in its entirety, the central element of the present invention, namely the assembly element responsible for the formation of the structural unit, will first of all be explained with reference to FIG.

Das in Figur 1 dargestellte bügelartige und vorzugsweise aus Metall bestehende Montageelement 10 besteht aus einem Mittelbereich 11, von dem sich zwei Seitenarme 12 seitlich erstrecken. Die Seitenarme 12 sind leicht konkav gekrümmt und weisen an ihren Enden jeweils verdrehbare Rastflügel 13 auf, die zur Verrastung mit dem Reflektor vorgesehen sind.The bow-shaped and preferably made of metal mounting element 10 shown in Figure 1 consists of a central region 11 from which two side arms 12 extend laterally. The side arms 12 are slightly concave curved and have at their ends in each case rotatable latching wings 13, which are provided for latching with the reflector.

Der Mittelbereich 11 besteht aus zwei senkrecht zur Erstreckungsrichtung der Seitenarme 12 angeordneten Füße 14, die an ihren unteren Endbereichen Rasthaken oder Vorsprünge 16 zur Halterung der die Lichtkammern abschließenden Lichtbeeinflussungselemente aufweisen. Die Füße 14 sind im montierten Zustand der Baueinheit zu beiden Seiten neben der Lampe bzw. den Lampen angeordnet und weisen ferner zwei sich in Längsrichtung der Füße erstreckende Schlitzte 15 auf, in welche zusätzliche Lichtbeeinflussungselemente eingeschoben werden können. Diese eingeschobenen Lichtbeeinflussungselemente befinden sich dann im montierten Zustand in dem Übergangsbereich von den Lichtquellen zu den Lichtkammern und beeinflussen somit das über die Lichtkammern abgegebene Licht. Vorzugsweise werden in die Schlitze 15 Farbfilter eingeschoben, wodurch die beiden Lichtkammern in einem im Vergleich zu dem direkt abgestrahlten Licht der Lampen veränderten Farbton erscheinen.The middle region 11 consists of two feet 14 which are arranged perpendicular to the extension direction of the side arms 12 and which have latching hooks or projections 16 for holding the light influencing elements terminating the light chambers at their lower end regions. The feet 14 are arranged in the assembled state of the assembly on both sides next to the lamp or the lamps and also have two extending in the longitudinal direction of the feet slit 15, in which additional light influencing elements can be inserted. These inserted light influencing elements are then in the assembled state in the transition region from the light sources to the light chambers and thus influence the light emitted via the light chambers. Preferably, 15 color filters are inserted into the slots, whereby the two light chambers appear in a changed compared to the directly emitted light of the lamps hue.

Im oberen Bereich des Mittelteils 11 ist ferner eine Befestigungslasche 17 vorgesehen, mit deren Hilfe das Montageelement 10 und damit die gesamte aus den Montageelementen, dem Reflektor und den Lichtbeeinflussungselementen bestehende Baueinheit in einem Leuchtengehäuse verankert werden kann.In the upper region of the central part 11, a fastening tab 17 is further provided, with the aid of the mounting member 10 and thus the entire of the Mounting elements, the reflector and the light influencing elements existing unit can be anchored in a light housing.

Die Funktionsweise des Montageelements 10 wird in Figur 2 deutlich, welche die erfindungsgemäße Leuchte 1 in ihrer Gesamtheit zeigt. Als Ausführungsbeispiel ist dabei eine Deckeneinbauleuchte dargestellt, deren Elemente in einem kastenförmigen Leuchtengehäuse 20 angeordnet sind, das mit Hilfe von - nicht dargestellten - Montagemitteln in der Decke eines zu beleuchtenden Raumes versenkt wird.The operation of the mounting member 10 is clear in Figure 2, which shows the lamp 1 according to the invention in its entirety. As an exemplary embodiment while a ceiling light is shown, the elements are arranged in a box-shaped lamp housing 20, which is sunk by means of - not shown - mounting means in the ceiling of a room to be illuminated.

Als Lichtquelle dient eine Gasentladungslampe 2, unter der ein aus Seitenreflektoren und Querlamellen bestehendes Leuchtenraster 6 angeordnet ist. Ebenso wie bei der in Figur 3 dargestellten bekannten Leuchte wird ein Großteil des von der Lampe 1 - bei der es sich vorzugsweise um eine Leuchtstofflampe handelt - abgegebenen Lichts über das Raster 6 nach unten abgestrahlt, wobei die Strukturen und Abmessungen der Reflektoren und Lamellen derart gewählt sind, dass dieses nach unten abgestrahlte Licht zu einem gewissem Grad querentblendet ist. Die erfindungsgemäße Leuchte ist damit insbesondere auch zur Beleuchtung von Räumen mit Bildschirmarbeitsplätzen geeignet, da Blendeffekte an Bildschirmoberflächen sowie für in dem Raum anwesende Personen weitestgehend vermieden werden.The light source is a gas discharge lamp 2, under which a consisting of side reflectors and cross blades light grid 6 is arranged. As in the case of the known luminaire shown in FIG. 3, a large part of the light emitted by the lamp 1, which is preferably a fluorescent lamp, is emitted downwards via the grid 6, the structures and dimensions of the reflectors and laminates being selected in such a way are that this downwardly emitted light is to some degree cross-faded. The luminaire according to the invention is therefore particularly suitable for illuminating rooms with VDU workstations, since dazzling effects on screen surfaces as well as persons present in the room are largely avoided.

Anstelle des dargestellten Rasters 6 könnten auch ein Lochblech, welches beispielsweise mit Folien hinterlegt ist, oder andere optische Elemente verwendet werden, beispielsweise Diffusoren oder Prismenstrukturen. Ferner besteht selbstverständlich auch die Möglichkeit, die Leuchte 1 mit mehreren Gasentladungslampen auszustatten.Instead of the illustrated grid 6, a perforated plate, which is deposited for example with foils, or other optical elements could be used, for example diffusers or prismatic structures. Furthermore, of course, it is also possible to equip the lamp 1 with a plurality of gas discharge lamps.

Zu beiden Seiten neben der Lampe 2 befinden sich zwei Lichtkammern 5, über die ein weiterer Teil des von der Lampe 2 abgegebenen Lichts abgestrahlt wird. Die Lichtkammern 5 werden zunächst von einem Reflektor 3 gebildet, der den mittleren Bereich der Leuchte 1 mit der Lampe 2 übergreift und mit seinen beiden Seitenbereichen - von dem zu beleuchtenden Bereich aus gesehen - neben der Lampe 1 angeordnet ist. Vor den Seitenbereichen des Reflektors 3 ist jeweils eine Diffusorplatte 4 angeordnet, wobei der Reflektor 3 und die beiden Diffusorplatten 4 an den von der Lampe 2 entfernten Enden jeweils zusammenlaufen und somit die Lichtkammern 5 einschließen. Die Lichteintrittsflächen für die beiden Lichtkammern 5 werden jeweils von den Oberkanten des Rasters 6 und dem Reflektor 3 begrenzt. Da sich die Diffusorplatten 4 jeweils bis zur Oberkante der entsprechenden Seitenwand des Rasters 6 hin erstrecken, wird vermieden, dass die oberhalb des Rasters angeordnete Lampe 2 von der Seite her gesehen direkt betrachtet werden kann und damit Blendeffekte entstehen.On both sides next to the lamp 2 there are two light chambers 5, over which a further part of the light emitted by the lamp 2 is emitted. The light chambers 5 are first formed by a reflector 3, which engages over the central region of the lamp 1 with the lamp 2 and with its two side areas - seen from the area to be illuminated - next to the lamp 1 is arranged. A diffuser plate 4 is arranged in each case in front of the side areas of the reflector 3, wherein the reflector 3 and the two diffuser plates 4 converge at the ends remote from the lamp 2 and thus enclose the light chambers 5. The light entry surfaces for the two light chambers 5 are each bounded by the upper edges of the grid 6 and the reflector 3. Since the diffuser plates 4 each extend to the upper edge of the corresponding side wall of the grid 6, it is avoided that the above Grid arranged lamp 2 seen from the side can be viewed directly and thus dazzling effects arise.

Die Anordnung und Halterung des Reflektors 3 und der Diffusoren 4 in der dargestellten Weise erfolgt in erster Linie durch zwei in Längsrichtung der Lampe 2 verteilt angeordnete Montageelemente 10. Die Montageelemente 10 durchgreifen dabei jeweils zwei in dem Reflektor 3 angeordnete Schlitze derart, dass sie mit ihren Seitenarmen 12 oberhalb des Reflektors 3 und mit ihren Füßen 14 unterhalb des Reflektors 3 angeordnet sind. Eine Befestigung des Reflektors 3 an den Montageelementen 10 erfolgt mit Hilfe der Rastflügel 13, die zusätzliche Rastschlitze in dem Reflektor 3 durchgreifen und nach dem Verdrehen derselben mit diesem verrasten.The arrangement and mounting of the reflector 3 and the diffusers 4 in the manner shown takes place primarily by two distributed in the longitudinal direction of the lamp 2 arranged mounting elements 10. The mounting elements 10 thereby pass through two arranged in the reflector 3 slots such that they with their Side arms 12 are arranged above the reflector 3 and with their feet 14 below the reflector 3. An attachment of the reflector 3 to the mounting elements 10 takes place with the aid of the latching wings 13, which pass through additional latching slots in the reflector 3 and lock after twisting the same with this.

Ein wesentliches Merkmal dieser Anordnung besteht darin, dass die Seitenflügel 12 der Montageelemente 10 auf der Oberseite des Reflektors 3 aufliegen und die Krümmung des Reflektors aufrechterhalten bzw. bestimmen. Hierdurch wird der Reflektor 3 unter Vorspannung gekrümmt wodurch er gleichzeitig auch in die Lage versetzt wird, die Diffusorplatten 4 an ihren Außenbereichen zu halten. Hierfür weist der Reflektor 3 in seinen Endbereichen Umkröpfungen 3a auf, in welche die Endbereiche der Diffusorplatten 4 eingreifen können. An ihren der Lampe 2 zugewandten Enden hingegen greifen die Diffusorplatten 4 mit ihren Randbereichen 4a in die Rastvorsprünge 16 des Montageelements 10 ein. Insgesamt wird hierdurch eine aus den beiden Montageelementen 10, dem Reflektor 3 und den beiden Diffusorplatten 4 bestehende Baueinheit gebildet, die als Gesamtheit in das Gehäuse 20 der Lampe 1 eingesetzt und montiert bzw. wieder demontiert werden kann. Die Verankerung dieser Baueinheit in dem Gehäuse 20 erfolgt dabei zum Einen durch die Montageelementen 10 bzw. deren Befestigungslaschen 17 sowie zum Anderen durch die beiden Randbereiche 3a des Reflektors 3, die in entsprechende Rastausnehmungen 21 des Gehäuses 20 eingreifen.An essential feature of this arrangement is that the side wings 12 of the mounting elements 10 rest on the top of the reflector 3 and maintain or determine the curvature of the reflector. As a result, the reflector 3 is curved under bias whereby it is also able to hold the diffuser plates 4 at their outer areas at the same time. For this purpose, the reflector 3 in its end regions Umkröpfungen 3a, in which the end portions of the diffuser plates 4 can engage. At their ends facing the lamp 2, however, the diffuser plates 4 engage with their edge regions 4a in the latching projections 16 of the mounting element 10. Overall, this one consisting of the two mounting elements 10, the reflector 3 and the two diffuser plates 4 assembly is formed, which can be used as a whole in the housing 20 of the lamp 1 and mounted or disassembled. The anchoring of this structural unit in the housing 20 takes place on the one hand by the mounting elements 10 and their mounting tabs 17 and on the other by the two edge portions 3a of the reflector 3, which engage in corresponding recesses 21 of the housing 20.

Durch die Bildung der Baueinheit wird somit eine sehr einfache Montage bzw. Demontage der Leuchte 1 ermöglicht. Nach Montage der Baueinheit in dem Leuchtengehäuse 20 werden die zu beiden Seiten neben der Lampe 2 angeordneten Lichtkammern 5 gebildet, über die ein Teil des von der Lampe 2 abgegebenen Lichts seitlich abgegeben wird. Der Übergang der Lichtstrahlen von dem Bereich mit der Lampe 2 in die seitlichen Lichtkammern 5 erfolgt dabei zunächst ungehindert, da - abgesehen von den Füßen 14 der Montageelemente 10 keine weiteren Elemente neben der Lampe 2 angeordnet sind. Allerdings besteht die Möglichkeit, in die Schlitze der Füße 14 der Montageelemente 10 längliche Farbfilter einzuschieben, so dass das in die Lichtkammern 5 übertretene Licht farblich verändert wird. Der das Leuchtenraster 6 umgebene Bereich erscheint damit in einem anderen Farbton, wodurch ansprechende Beleuchtungseffekte erzielt werden können. Selbst mit eingeschobenen Farbfiltern wird jedoch kein luftdichter Abschluss des die Lampe 2 umgebenen Bereichs erzielt, so dass nach wie vor im Vergleich zu der bekannten Leuchte in Figur 3 ein besserer Wärmeaustausch erzielt wird und somit Verluste in der Leuchtleistung reduziert werden.The formation of the unit thus a very simple assembly and disassembly of the lamp 1 is possible. After assembly of the assembly in the lamp housing 20 arranged on both sides of the lamp 2 light chambers 5 are formed over which a part of the light emitted by the lamp 2 is emitted laterally. The transition of the light beams from the area with the lamp 2 in the lateral light chambers 5 is initially unhindered, since - apart from the feet 14 of the mounting elements 10, no further elements next to the lamp 2 are arranged. However, it is possible to insert 10 elongated color filter in the slots of the feet 14 of the mounting elements, so the light passing into the light chambers 5 is changed in color. The area surrounding the light grid 6 thus appears in a different hue, whereby attractive lighting effects can be achieved. Even with inserted color filters, however, no airtight completion of the area surrounding the lamp 2 is achieved, so that a better heat exchange is still achieved in comparison to the known luminaire in FIG. 3 and thus losses in the luminous power are reduced.

Ein Vorteil der erfindungsgemäßen Ausstattung besteht insbesondere darin, dass die beiden Diffusoren 4 aus Kunststoffplatten gebildet werden können, die nun nicht mehr im Spritzgießverfahren hergestellt werden müssen. Hierdurch können ohne zusätzlichen Kostenaufwand Leuchten in verschiedenen Abmessungen realisiert werden, da das Ausschneiden von Kunststoffplatten in den gewünschten Größen deutlich einfacher durchzuführen ist. Darüber hinaus können die Diffusorplatten nunmehr wahlweise aus PMMA oder PC hergestellt werden. Alternativ dazu besteht jedoch auch die Möglichkeit, anstelle von Diffusorscheiben andere Lichtbeeinflussungselemente, beispielsweise Prismenscheiben oder Lochbleche zu verwenden.An advantage of the equipment according to the invention is, in particular, that the two diffusers 4 can be formed from plastic plates which no longer have to be produced by injection molding. As a result, luminaires in various dimensions can be realized without additional cost, since the cutting of plastic plates in the desired sizes is much easier to perform. In addition, the diffuser plates can now optionally be made of PMMA or PC. Alternatively, however, it is also possible to use other light influencing elements, for example prismatic disks or perforated sheets, instead of diffuser disks.

Insgesamt wird somit durch die vorliegende Erfindung eine Leuchte geschaffen, welche hinsichtlich ihrer lichttechnischen Eigenschaften vergleichbar mit der bisher bekannten Leuchte ist. Auch das Erscheinungsbild der vorliegenden Leuchte gleicht im Wesentlichen der bereits bekannten Leuchte, wobei jedoch durch die vorliegende Erfindung die Herstellung deutlich vereinfacht und kostengünstiger gestaltet wird. Darüber hinaus wird die Montage bzw. Demontage der Leuchte durch die erfindungsgemäße Baueinheit besonders einfach und elegant gestaltet.Overall, a luminaire is thus created by the present invention, which is comparable in terms of their lighting properties with the previously known lamp. Also, the appearance of the present lamp is substantially similar to the already known lamp, but the production is significantly simplified and made cheaper by the present invention. In addition, the assembly and disassembly of the lamp is made particularly simple and elegant by the assembly according to the invention.

Claims (19)

  1. Luminaire (1) having at least one tube-like gas discharge lamp (2) arranged in a luminaire housing (20), a concavely curved reflector (3) engaging over the lamp (2) and arranged with its side regions - seen from the region to be illuminated - to both sides neighboring the lamp (1), and having light influencing elements (4) likewise arranged to both sides neighboring the lamp (1) but in front of the reflector (3),
    characterized in that,
    the reflector (3) and the light influencing elements (4) are assembled to a unit with the aid of at least one assembly element (10), which unit as a whole can be mounted or dismounted in the housing (2).
  2. Luminaire according to claim 1,
    characterized in that,
    the assembly element (10) is configured bracket-like and has two side arms (12) standing out to the side, for holding the reflector (3), and a middle region (11) connecting the side arms (12) with one another.
  3. Luminaire according to claim 2,
    characterized in that,
    the side arms (12) are in each case concavely curved.
  4. Luminaire according to claim 2 or 3,
    characterized in that,
    the side arms (12) have in each case latch wings (13), which are provided for latching with the reflector (3).
  5. Luminaire according to claim 4,
    characterized in that,
    the latch wings (13) are rotatable.
  6. Luminaire according to any of claims 2 to 5,
    characterized in that,
    the middle region (11) has two feet (14) arranged perpendicularly to the direction of extension of the side arms (12), which feet are, in the mounted condition, arranged to both sides neighboring the gas discharge lamp (2).
  7. Luminaire according to claim 6,
    characterized in that,
    the feet (14) have at their lower ends in each case projections (16) for latching with the light influencing elements (4).
  8. Luminaire according to any preceding claim,
    characterized in that,
    the assembly element (10) has means for holding a further light influencing element to be arranged neighboring the gas discharge lamp (2).
  9. Luminaire according to claim 6 or 7 and claim 8,
    characterized in that,
    the means for holding the further light influencing element are slots (15) arranged in the feet (14).
  10. Luminaire according to claim 8 or 9,
    characterized in that,
    the further light influencing element is a color filter.
  11. Luminaire according to any preceding claim,
    characterized in that,
    that a luminaire raster (6) is arranged - seen in the direction of emission - in front of the gas discharge lamp (2).
  12. Luminaire according to any of claims 1 to 10,
    characterized in that,
    a perforated sheet is arranged - seen in the emission direction - in front of the gas discharge lamp (2).
  13. Luminaire according to claim 11 or 12,
    characterized in that,
    the luminaire raster (6) or the perforated sheet is suspended in the assembly element or elements (10).
  14. Luminaire according to any preceding claim,
    characterized in that,
    the reflector (3) has in its end region in each case a bent piece (3a) for holding the light influencing elements (4) at their outer sides.
  15. Luminaire according to any preceding claim,
    characterized in that,
    that the light influencing elements, arranged to the two sides neighboring the lamp (1) but in front of the reflector (3), are diffusers (4).
  16. Luminaire according to claim 15,
    characterized in that,
    the diffusers (14) are formed by means of plates of polymethylmethacrylate (PMMA).
  17. Luminaire according to claim 15,
    characterized in that,
    the diffusers (4) are formed by means of plates of polycarbonate (PC).
  18. Luminaire according to any preceding claim,
    characterized in that,
    the reflector (3) and the light influencing elements (4) are assembled to the unit via two assembly elements (10).
  19. Assembly element (10) for employment in a luminaire (1) having at least one tube-like gas discharge lamp (2) arranged in a luminaire housing (20), a concavely curved reflector (3) engaging over the lamp (2) and arranged with its side regions - seen from the region to be illuminated - to both sides neighboring the lamp (1), and having light influencing elements (4) likewise arranged to both sides neighboring the lamp (1) but in front of the reflector (3),
    characterized in that,
    the assembly element (20) is so configured that it holds together the reflector (3) and the light influencing elements (4) to a unit, which unit as a whole can be mounted or dismounted in the housing (2).
EP04022846A 2003-09-25 2004-09-24 Lamp with an elongated gas discharge lamp Active EP1519103B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10344618 2003-09-25
DE10344618A DE10344618A1 (en) 2003-09-25 2003-09-25 Luminaire with tubular gas discharge lamp

Publications (2)

Publication Number Publication Date
EP1519103A1 EP1519103A1 (en) 2005-03-30
EP1519103B1 true EP1519103B1 (en) 2006-11-15

Family

ID=34177958

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04022846A Active EP1519103B1 (en) 2003-09-25 2004-09-24 Lamp with an elongated gas discharge lamp

Country Status (3)

Country Link
EP (1) EP1519103B1 (en)
AT (1) ATE345468T1 (en)
DE (2) DE10344618A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2431656B1 (en) * 2010-09-16 2013-08-28 LG Innotek Co., Ltd. Lighting device
CN103649624A (en) * 2011-07-15 2014-03-19 Lg伊诺特有限公司 Lighting device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10006410A1 (en) 2000-02-14 2001-08-16 Zumtobel Staff Gmbh Recessed ceiling light fitting has concave reflector and light diffuser cooperating to provide divergent light chambers on either side of tubular gas discharge lamp
WO1998029683A1 (en) * 1996-12-26 1998-07-09 Heiko Hinrichs Lighting system for indoor use
US20050157498A1 (en) * 2002-02-21 2005-07-21 Norbert Dicken Luminaire and method for repairing a luminaire

Also Published As

Publication number Publication date
DE502004001993D1 (en) 2006-12-28
ATE345468T1 (en) 2006-12-15
DE10344618A1 (en) 2005-05-04
EP1519103A1 (en) 2005-03-30

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