EP0538727A1 - Reflector for a lighting device - Google Patents

Reflector for a lighting device Download PDF

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Publication number
EP0538727A1
EP0538727A1 EP92117550A EP92117550A EP0538727A1 EP 0538727 A1 EP0538727 A1 EP 0538727A1 EP 92117550 A EP92117550 A EP 92117550A EP 92117550 A EP92117550 A EP 92117550A EP 0538727 A1 EP0538727 A1 EP 0538727A1
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EP
European Patent Office
Prior art keywords
reflector
film
perforated plate
lamp
reflector according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP92117550A
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German (de)
French (fr)
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EP0538727B1 (en
Inventor
Fasser Heinz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zumtobel Lighting GmbH Austria
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Zumtobel Lighting GmbH Austria
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Publication of EP0538727A1 publication Critical patent/EP0538727A1/en
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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
    • 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
    • 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
    • F21V7/00—Reflectors for light sources
    • F21V7/0008—Reflectors for light sources providing for indirect lighting
    • F21V7/0016—Reflectors for light sources providing for indirect lighting on lighting devices that also provide for direct lighting, e.g. by means of independent light sources, by splitting of the light beam, by switching between both lighting modes
    • 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
    • F21V7/005—Reflectors for light sources with an elongated shape to cooperate with linear light sources
    • 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
    • F21S8/02—Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters

Definitions

  • the invention relates to a reflector for a lamp with at least one elongated lamp or at least one lamp, such as fluorescent lamps or halogen rods, etc.
  • Such reflectors are usually arranged with respect to the lamp, they are basket-shaped or arcuate and made of perforated sheet metal.
  • Such reflectors at least partially cover the lamp of the lamp and thus prevent an observer from seeing the lamp directly and being blinded thereby.
  • the perforated plate alone does not guarantee complete glare protection. Under unfavorable circumstances, the viewer can partially see the lamp through the openings in the perforated plate. That is why a translucent, opal or milky white half-shell is inserted on the inside of the basket.
  • the reflector just described is often used in combination with other reflectors mounted above the lamp. These reflectors are usually painted white. In order to achieve the most pleasant lighting effect of the lamp, efforts are made to make the luminance on all light-emitting surfaces of the lamp approximately the same.
  • the half-shell must be about 3 mm thick for manufacturing reasons, the losses are so high that none are so high Luminance as can be achieved with the other reflectors.
  • the production of the half-shells is very complex.
  • the half-shells are manufactured using blow molding machines by hot forming.
  • the side edges have to be reworked after the deformation.
  • the half-shells are extruded for large quantities.
  • the side edges do not have to be reworked during extrusion, but this type of production requires high tool investments.
  • the invention according to claim 1 solves the problem of designing a reflector of the type described above in such a way that it can be manufactured much more easily without having to accept any loss in quality in the case of glare control.
  • different reflector sizes should be easy to manufacture.
  • the film is advantageously held in bends of the perforated plate or by holding elements which ensure that the film rests on the inside and / or outside of the perforated plate. It is also possible to glue the film to the perforated plate (claims 2 and 3).
  • the transparency of the reflector is increased by using a film while the number and size of the holes in the perforated plate remain the same. It is thereby achieved that the luminance on all light-emitting surfaces of the lamp can be chosen to be approximately the same size. This creates a particularly friendly indoor climate, the light effect of the lamp is perceived by the viewer as pleasant.
  • the invention is described by way of example with reference to FIGS. 1 to 4 on a recessed ceiling light, the reflector according to the invention of course also being able to be used in other lights.
  • Fig. 1 shows a lamp with a reflector according to the invention, arcuate in cross section in the installed state with an inserted lamp.
  • Fig. 2 shows the same lamp, with the reflectors being highlighted.
  • FIG. 3 shows a reflector according to the invention.
  • FIG. 4 shows a reflector according to the invention which is configured differently from FIG. 3, the film having been bent.
  • FIG. 1 shows how a lamp 1 is installed in a conventional grid ceiling.
  • the luminaire 1 is held by mounting rails 9 just like ceiling elements 8.
  • a lamp 5 is inserted into a socket 7, electrical connection lines and operating devices not being shown for the sake of simplicity were.
  • the lamp 5 is covered by a partially translucent reflector 4.
  • This reflector 4 is shown partly in section.
  • the reflector 4 consists of a perforated plate 10 and an inner film 11. This film 11 is preferably 0.5 mm thick, translucent and milky white.
  • the lamp 1 is shown without electrical components.
  • the reflector 4 is connected via holding elements 3, 3 'with screw bolts 13 to a lamp housing 6. Instead of screw connections, riveted, welded or adhesive connections can also be selected.
  • the lamp housing 6 there are two further reflectors 2, 2 '. These reflectors are painted white and have the task of emitting light that comes directly from the lamp or indirectly from the reflector from the lamp.
  • the film 11 can also be attached outside the perforated plate 10.
  • the holding of the film then preferably take over the holding elements 3, 3 '.
  • the film 11 can be glued to the perforated plate 10.
  • FIG. 3 shows a preferred embodiment of the reflector 4 with perforated sheet and foil, the illustration not being to scale and the perforation only being indicated.
  • the film 11 is held by the perforated plate 10 with bends 12, 12 '.
  • the film is installed in a simple manner. It only needs to be inserted under the bend 12 or 12 'on one side and then pressed down. The film is then snapped under the opposite bend 12 'or 12. It is also possible to insert the film laterally. As a result of the internal stress, the film lies fully against the perforated plate over the entire area. No further fastenings are necessary.
  • the thickness of the film must be chosen so that the desired luminance can be achieved, whereby the film must not be too thick so that it lies exactly against the perforated plate.
  • UV-resistant PMMA polymethyl methacrylate
  • the film must be UV-resistant, because discharge lamps emit a small amount of UV light and plastics can become brittle when exposed to UV.
  • the number and size of the holes in the perforated plate 10 are of course also responsible for the height of the luminance on the reflector 4.
  • a perforated plate with holes whose area is 0.7 to 1.8 mm 2 and which are arranged at a distance from the center of one hole to the center of an adjacent hole of approximately 1.5 to 3.5 mm is preferably used.
  • the light that does not leave the lamp through the openings in the perforated plate 10 of the reflector 4 is reflected from the perforated plate 10, which is usually painted white, to the reflectors 2, 2 'and is emitted from there.
  • FIG. 4 shows a basket-like reflector, the illustration not to scale and the holes - as in FIG. 3 - only being indicated. So that the film lies against the perforated plate over the entire area, the film was kinked in the area of the edges 14, 14 ', it being pointed out that it is not absolutely necessary that the film always lies against the perforated plate. If the film is not kinked, then this rests on the perforated plate in the manner of the dashed line 15.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)

Abstract

The invention relates to a reflector for a lighting device with at least one elongate lighting means, such as e.g. fluorescent lamps or halogen rods, the reflector covering the lighting means at least partially and being made from a perforated sheet (10). According to the invention, a light-permeable foil (11) bears against the perforated sheet (10) on the inside and/or on the outside or is arranged on the perforated sheet (10) in order to form an antiglare device. Conventional opal or milky half shells as antiglare device can thus be forgone. <IMAGE>

Description

Die Erfindung betrifft einen Reflektor für eine Leuchte mit wenigstens einem langgestreckten Leuchtmittel bzw. wenigstens einer Lampe, wie zum Beispiel Leuchtstofflampen oder Halogenstäbe usw.The invention relates to a reflector for a lamp with at least one elongated lamp or at least one lamp, such as fluorescent lamps or halogen rods, etc.

Derartige Reflektoren sind meist bezüglich der Lampe unter dieser angeordnet, sie sind korbartig bzw. bogenförmig ausgebildet und aus Lochblech gefertigt.Such reflectors are usually arranged with respect to the lamp, they are basket-shaped or arcuate and made of perforated sheet metal.

Solche Reflektoren überdecken zumindest teilweise die Lampe der Leuchte und verhindern damit, daß ein Betrachter direkt die Lampe sehen kann und dadurch geblendet wird. Das Lochblech allein gewährleistet noch keinen vollkommenen Blendschutz. Durch die Öffnungen im Lochblech kann der Betrachter unter ungünstigen Umständen teilweise die Lampe sehen. Darum ist an der Innenseite des Korbes eine lichtdurchlässige, opale od. milchig weiße Halbschale eingelegt.Such reflectors at least partially cover the lamp of the lamp and thus prevent an observer from seeing the lamp directly and being blinded thereby. The perforated plate alone does not guarantee complete glare protection. Under unfavorable circumstances, the viewer can partially see the lamp through the openings in the perforated plate. That is why a translucent, opal or milky white half-shell is inserted on the inside of the basket.

Der gerade beschriebene Reflektor wird häufig in Kombination mit bezüglich der Lampe über dieser montierten, weiteren Reflektoren verwendet. Diese Reflektoren sind meist weiß lackiert. Um eine möglichst angenehme Lichtwirkung der Leuchte zu erzielen, ist man bestrebt, die Leuchtdichte an allen lichtabstrahlenden Flächen der Leuchte etwa gleich groß zu machen.The reflector just described is often used in combination with other reflectors mounted above the lamp. These reflectors are usually painted white. In order to achieve the most pleasant lighting effect of the lamp, efforts are made to make the luminance on all light-emitting surfaces of the lamp approximately the same.

Da aus fertigungstechnischen Gründen die Halbschale etwa 3 mm dick sein muß, sind die Verluste so hoch, daß keine so hohe Leuchtdichte wie bei den weiteren Reflektoren erreicht werden kann.Since the half-shell must be about 3 mm thick for manufacturing reasons, the losses are so high that none are so high Luminance as can be achieved with the other reflectors.

Die Herstellung der Halbschalen ist sehr aufwendig. Für kleinere Stückzahlen erfolgt die Fertigung der Halbschalen mit Blasformmaschinen durch Warmverformen. Hierbei müssen nach erfolgter Verformung die Seitenkanten nachbearbeitet werden. Bei hohen Stückzahlen werden die Halbschalen extrudiert. Die Seitenkanten müssen beim Extrudieren zwar nicht nachbearbeitet werden, aber diese Art der Fertigung bedingt hohe Werkzeuginvestitionen.The production of the half-shells is very complex. For smaller quantities, the half-shells are manufactured using blow molding machines by hot forming. Here the side edges have to be reworked after the deformation. The half-shells are extruded for large quantities. The side edges do not have to be reworked during extrusion, but this type of production requires high tool investments.

Wird die Größe des Reflektors geändert, so müssen die Werkzeuge und Formen unabhängig von der Art der Herstellung geändert werden, was sehr kostenintensiv ist.If the size of the reflector is changed, the tools and shapes must be changed regardless of the type of manufacture, which is very expensive.

Die Erfindung gemäß Anspruch 1 löst die Aufgabe, einen Reflektor der vorher beschriebenen Art so auszubilden, daß er wesentlich einfacher gefertigt werden kann, ohne dabei Qualitätseinbußen bei der Entblendung hinnehmen zu müssen. Außerdem sollen verschiedene Reflektorgrößen einfach hergestellt werden können.The invention according to claim 1 solves the problem of designing a reflector of the type described above in such a way that it can be manufactured much more easily without having to accept any loss in quality in the case of glare control. In addition, different reflector sizes should be easy to manufacture.

Dies wird erreicht durch die Ausgestaltung eines Reflektors gemäß dem kennzeichnenden Teil des Anspruchs 1.This is achieved by the configuration of a reflector according to the characterizing part of claim 1.

Dadurch wird vorteilhafterweise erreicht, daß die Herstellung eines derartigen Reflektors verbilligt wird.This advantageously ensures that the manufacture of such a reflector is cheaper.

Durch die Verwendung einer Folie anstelle einer Halbschale vereinfacht sich die Herstellung eines derartigen Reflektors ganz wesentlich. Die vorzugsweise 0,5 mm dicke Folie wird auf die gewünschte Länge und Breite zugeschnitten und braucht dann nur noch am Lochblech fixiert werden. Die Herstellung verschieden großer Reflektoren ist ohne großen Aufwand möglich - es müssen nur die Abmessungen des Zuschnitts geändert werden. Wird anstelle eines bogenförmigen Reflektors ein korbartiger verwendet, dann kann es unter Umständen notwendig sein, daß die Folie geknickt werden muß.The use of a film instead of a half-shell simplifies the manufacture of such a reflector considerably. The preferably 0.5 mm thick film is cut to the desired length and width and then only needs to be fixed to the perforated plate. The production of reflectors of different sizes is possible without great effort - only the dimensions of the cut need to be changed. If a basket-like reflector is used instead of an arcuate reflector, it may be necessary under certain circumstances that the film has to be bent.

Vorteilhaft wird die Folie in Umbiegungen des Lochblechs oder von Halteelementen gehalten, die dafür sorgen, daß die Folie innen und/oder außen am Lochblech anliegt. Ebenso ist es möglich, die Folie auf das Lochblech zu kleben (Anspruch 2 und 3).The film is advantageously held in bends of the perforated plate or by holding elements which ensure that the film rests on the inside and / or outside of the perforated plate. It is also possible to glue the film to the perforated plate (claims 2 and 3).

Außerdem wird durch Verwendung einer Folie die Lichtdurchlässigkeit des Reflektors bei gleichbleibender Anzahl und Größe der Löcher im Lochblech erhöht. Dadurch wird erreicht, daß die Leuchtdichte an allen lichtabstrahlenden Flächen der Leuchte etwa gleich groß gewählt werden kann. Dies schafft ein besonders freundliches Raumklima, die Lichtwirkung der Leuchte wird vom Betrachter als angenehm empfunden.In addition, the transparency of the reflector is increased by using a film while the number and size of the holes in the perforated plate remain the same. It is thereby achieved that the luminance on all light-emitting surfaces of the lamp can be chosen to be approximately the same size. This creates a particularly friendly indoor climate, the light effect of the lamp is perceived by the viewer as pleasant.

Die Ansprüche 4 bis 6 beschreiben vorteilhafte Ausgestaltungen der Folie, die Ansprüche 7 bis 9 lehren, wie eine Leuchte mit dem erfindungsgemäßen Reflektor ausgeführt werden muß, um eine angenehme Lichtwirkung zu erzielen.The claims 4 to 6 describe advantageous embodiments of the film, which teach claims 7 to 9, how a lamp with the reflector according to the invention must be designed to achieve a pleasant lighting effect.

Die Erfindung wird anhand der Figuren 1 bis 4 beispielhaft an einer Deckeneinbauleuchte beschrieben, wobei der erfindungsgemäße Reflektor natürlich auch in anderen Leuchten eingesetzt werden kann.The invention is described by way of example with reference to FIGS. 1 to 4 on a recessed ceiling light, the reflector according to the invention of course also being able to be used in other lights.

Fig. 1 zeigt eine Leuchte mit einem erfindungsgemäßen, im Querschnitt bogenförmigen Reflektor in eingebautem Zustand mit eingesetzter Lampe.Fig. 1 shows a lamp with a reflector according to the invention, arcuate in cross section in the installed state with an inserted lamp.

Fig. 2 zeigt die selbe Leuchte, wobei die Reflektoren besonders hervorgehoben wurden.Fig. 2 shows the same lamp, with the reflectors being highlighted.

Fig. 3 zeigt einen erfindungsgemäßen Reflektor.3 shows a reflector according to the invention.

Fig. 4 zeigt einen gegenüber Fig. 3 anders gestalteten erfindungsgemäßen Reflektor, wobei die Folie geknickt wurde.FIG. 4 shows a reflector according to the invention which is configured differently from FIG. 3, the film having been bent.

Die Figur 1 zeigt, wie eine Leuchte 1 in eine übliche bekannte Rasterdecke eingebaut wird. Die Leuchte 1 wird genauso wie Deckenelemente 8 von Tragschienen 9 gehaltert. In eine Fassung 7 wird eine Lampe 5 eingesetzt, wobei elektrische Verbindungsleitungen und Betriebsgeräte der Einfachheit halber nicht dargestellt wurden. Die Lampe 5 wird von einem teillichtdurchlässigen Reflektor 4 überdeckt. Dieser Reflektor 4 ist teilweise geschnitten dargestellt. Der Reflektor 4 besteht aus einem Lochblech 10 und aus einer innen liegenden Folie 11. Diese Folie 11 ist vorzugsweise 0,5 mm dick, lichtdurchlässig und milchig weiß.FIG. 1 shows how a lamp 1 is installed in a conventional grid ceiling. The luminaire 1 is held by mounting rails 9 just like ceiling elements 8. A lamp 5 is inserted into a socket 7, electrical connection lines and operating devices not being shown for the sake of simplicity were. The lamp 5 is covered by a partially translucent reflector 4. This reflector 4 is shown partly in section. The reflector 4 consists of a perforated plate 10 and an inner film 11. This film 11 is preferably 0.5 mm thick, translucent and milky white.

In Figur 2 ist die Leuchte 1 ohne elektrische Bauteile dargestellt. Der Reflektor 4 ist über Halteelemente 3,3' mit Schraubenbolzen 13 mit einem Leuchtengehäuse 6 verbunden. Anstelle von Schraubverbindungen können auch Niet-, Schweiß- oder Klebeverbindungen gewählt werden. Im Leuchtengehäuse 6 sind zwei weitere Reflektoren 2,2' vorhanden. Diese Reflektoren sind weiß lackiert und haben die Aufgabe, Licht, welches direkt von der Lampe oder indirekt vom Reflektor kommt, von der Leuchte abzustrahlen.In Figure 2, the lamp 1 is shown without electrical components. The reflector 4 is connected via holding elements 3, 3 'with screw bolts 13 to a lamp housing 6. Instead of screw connections, riveted, welded or adhesive connections can also be selected. In the lamp housing 6 there are two further reflectors 2, 2 '. These reflectors are painted white and have the task of emitting light that comes directly from the lamp or indirectly from the reflector from the lamp.

Die Folie 11 kann auch außerhalb des Lochblechs 10 angebracht werden. Die Halterung der Folie übernehmen dann vorzugsweise die Halteelemente 3,3'. Anstelle von Halteelementen kann die Folie 11 auf das Lochblech 10 geklebt werden.The film 11 can also be attached outside the perforated plate 10. The holding of the film then preferably take over the holding elements 3, 3 '. Instead of holding elements, the film 11 can be glued to the perforated plate 10.

Die Figur 3 zeigt eine bevorzugte Ausführungsform des Reflektors 4 mit Lochblech und Folie, wobei die Darstellung nicht maßstäblich und die Lochung nur angedeutet ist. Die Folie 11 wird vom Lochblech 10 mit Umbiegungen 12,12' gehaltert. Der Einbau der Folie erfolgt auf einfache Weise. Diese braucht nur auf einer Seite unter die Umbiegung 12 oder 12' gesteckt und dann nach unten gedrückt werden. Anschließend wird die Folie dann unter der gegenüberliegenden Umbiegung 12' bzw. 12 eingeschnappt. Ebenso ist es möglich, die Folie seitlich einzuschieben. Infolge der Eigenspannung liegt die Folie über den gesamten Bereich des Lochblechs voll an diesem an. Weitere Befestigungen sind nicht notwendig. Die Dicke der Folie muß so gewählt werden, daß die gewünschte Leuchtdichte erzielt werden kann, wobei die Folie nicht zu dick sein darf, damit sie sich exakt an das Lochblech anlegt.FIG. 3 shows a preferred embodiment of the reflector 4 with perforated sheet and foil, the illustration not being to scale and the perforation only being indicated. The film 11 is held by the perforated plate 10 with bends 12, 12 '. The film is installed in a simple manner. It only needs to be inserted under the bend 12 or 12 'on one side and then pressed down. The film is then snapped under the opposite bend 12 'or 12. It is also possible to insert the film laterally. As a result of the internal stress, the film lies fully against the perforated plate over the entire area. No further fastenings are necessary. The thickness of the film must be chosen so that the desired luminance can be achieved, whereby the film must not be too thick so that it lies exactly against the perforated plate.

Vorteilhaft wird eine ca. 0,5 mm dicke Folie aus UV-beständigem PMMA (Polymethylmethacrylat) verwendet. Die Folie muß UV-beständig sein, weil Entladungslampen einen kleinen Anteil UV-Licht abstrahlen und Kunststoffe unter UV-Einwirkung spröde werden können.An approximately 0.5 mm thick film made of UV-resistant PMMA (polymethyl methacrylate) is advantageously used. The film must be UV-resistant, because discharge lamps emit a small amount of UV light and plastics can become brittle when exposed to UV.

Neben der Dicke der Folie ist natürlich auch die Anzahl und Größe der Löcher im Lochblech 10 für die Höhe der Leuchtdichte am Reflektor 4 verantwortlich.In addition to the thickness of the film, the number and size of the holes in the perforated plate 10 are of course also responsible for the height of the luminance on the reflector 4.

Bevorzugt wird ein Lochblech mit Löchern, deren Fläche 0,7 bis 1,8 mm² beträgt und in einem Abstand vom Mittelpunkt eines Loches zum Mittelpunkt eines benachbarten Loches von etwa 1,5 bis 3,5 mm angeordnet sind, verwendet.A perforated plate with holes whose area is 0.7 to 1.8 mm 2 and which are arranged at a distance from the center of one hole to the center of an adjacent hole of approximately 1.5 to 3.5 mm is preferably used.

Das Licht, welches nicht durch die Öffnungen im Lochblech 10 des Reflektors 4 die Leuchte verläßt, wird vom meist weiß lackierten Lochblech 10 zu den Reflektoren 2,2' reflektiert und von dort abgestrahlt.The light that does not leave the lamp through the openings in the perforated plate 10 of the reflector 4 is reflected from the perforated plate 10, which is usually painted white, to the reflectors 2, 2 'and is emitted from there.

Die Figur 4 zeigt einen korbartigen Reflektor, wobei die Darstellung nicht maßstäblich und die Löcher - wie in Fig. 3 - nur angedeutet sind. Damit die Folie über den ganzen Bereich am Lochblech anliegt, wurde die Folie im Bereich der Kanten 14,14' geknickt, wobei darauf hingewiesen wird, daß es nicht unbedingt notwendig ist, daß die Folie immer am Lochblech anliegt. Wird die Folie nicht geknickt, dann liegt diese in der Art der strichlierten Linie 15 am Lochblech an.FIG. 4 shows a basket-like reflector, the illustration not to scale and the holes - as in FIG. 3 - only being indicated. So that the film lies against the perforated plate over the entire area, the film was kinked in the area of the edges 14, 14 ', it being pointed out that it is not absolutely necessary that the film always lies against the perforated plate. If the film is not kinked, then this rests on the perforated plate in the manner of the dashed line 15.

Claims (9)

Reflektor für eine Leuchte mit wenigstens einem langgestreckten Leuchtmittel,
   wobei der Reflektor das oder die Leuchtmittel wenigstens teilweise überdeckt und aus einem Lochblech gefertigt ist,
   dadurch gekennzeichnet,
   daß am Lochblech (10) innen und/oder außen eine lichtdurchlässige Folie (11) anliegt oder aufgebracht ist.Reflector for a lamp with at least one elongated lamp,
wherein the reflector at least partially covers the lamp or lamps and is made from a perforated plate,
characterized,
that a translucent film (11) is applied or applied to the perforated plate (10) inside and / or outside. Reflektor nach Anspruch 1,
   dadurch gekennzeichnet,
   daß die Folie (11) in Umbiegungen (12,12') und/oder von Halteelementen (3,3') gehaltert ist.Reflector according to claim 1,
characterized,
that the film (11) is held in bends (12, 12 ') and / or by holding elements (3, 3'). Reflektor nach Anspruch 1,
   dadurch gekennzeichnet,
   daß die Folie (11) auf das Lochblech (10) geklebt ist.Reflector according to claim 1,
characterized,
that the film (11) is glued to the perforated plate (10). Reflektor nach Anspruch 1, 2 oder 3,
   dadurch gekennzeichnet,
   daß die Folie (11) aus UV-beständigem Material gefertigt ist und vorzugsweise milchig weiß ist.Reflector according to claim 1, 2 or 3,
characterized,
that the film (11) is made of UV-resistant material and is preferably milky white. Reflektor nach Anspruch 1 oder 4,
   dadurch gekennzeichnet,
   daß die Folie (11) 0,5 mm dick ist.Reflector according to claim 1 or 4,
characterized,
that the film (11) is 0.5 mm thick. Reflektor nach einem oder mehreren der vorigen Ansprüche,
   dadurch gekennzeichnet,
   daß die Folie (11) im Bereich von Kanten (14,14') des Lochblechs (10) geknickt ist.Reflector according to one or more of the preceding claims,
characterized,
that the film (11) is kinked in the region of edges (14, 14 ') of the perforated plate (10). Reflektor nach einem oder mehreren der vorigen Ansprüche,
   dadurch gekennzeichnet,
   daß das Lochblech (10) Löcher mit einer Fläche von 0,7 bis 1,8 mm² aufweist und die Mittelpunkte jeweils benachbarter Löcher einen Abstand von 1,5 bis 3,5 mm aufweisen.Reflector according to one or more of the preceding claims,
characterized,
that the perforated plate (10) holes with an area of 0.7 to 1.8 mm² and the centers of each adjacent hole have a distance of 1.5 to 3.5 mm. Reflektor nach einem oder mehreren der vorigen Ansprüche,
   dadurch gekennzeichnet,
   daß das Lochblech (10) weiß lackiert ist.Reflector according to one or more of the preceding claims,
characterized,
that the perforated plate (10) is painted white. Reflektor nach einem oder mehreren der vorigen Ansprüche,
   dadurch gekennzeichnet,
   daß die Leuchtdichte an dem mit einer Folie (11) versehenen Reflektor (4) etwa gleich groß ist wie bei weiteren Reflektoren (2,2').Reflector according to one or more of the preceding claims,
characterized,
that the luminance on the reflector (4) provided with a film (11) is approximately the same as that of other reflectors (2,2 ').
EP92117550A 1991-10-24 1992-10-14 Reflector for a lighting device Expired - Lifetime EP0538727B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9113266U 1991-10-24
DE9113266 1991-10-24

Publications (2)

Publication Number Publication Date
EP0538727A1 true EP0538727A1 (en) 1993-04-28
EP0538727B1 EP0538727B1 (en) 1995-05-31

Family

ID=6872593

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92117550A Expired - Lifetime EP0538727B1 (en) 1991-10-24 1992-10-14 Reflector for a lighting device

Country Status (3)

Country Link
EP (1) EP0538727B1 (en)
AT (1) ATE123335T1 (en)
DE (1) DE59202396D1 (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4443741A1 (en) * 1994-12-08 1996-06-13 Hartmut S Engel lamp
AT401966B (en) * 1994-11-17 1997-01-27 Photonic Optische Geraete Gmbh LIGHTING DEVICE
DE19648310A1 (en) * 1996-11-21 1998-05-28 Zumtobel Licht Lamp with at least one light-attenuation part
WO1999027296A1 (en) * 1997-11-24 1999-06-03 Nordisk Edb-Miljø Aps A light reflecting device and a method for improving the quality of illumination for a fluorescent tube lighting fixture
US6042246A (en) * 1998-05-18 2000-03-28 Herbert Waldmann Gmbh & Co. Wide-beam indirect lamp assembly
DE19923224A1 (en) * 1999-04-07 2000-10-12 Zumtobel Staff Gmbh Lighting arrangement for attachment to the ceiling or a wall of a room
EP1254764A2 (en) * 2001-05-04 2002-11-06 Sibu Design GmbH &amp; Co KG Decorative plate, especially as ceiling element
EP1359371A1 (en) * 2002-04-12 2003-11-05 Zumtobel Staff GmbH Luminaire with a diffuser
AT412993B (en) * 1996-05-22 2005-09-26 Zumtobel Licht LAMP
CN103119355A (en) * 2010-09-27 2013-05-22 宗拓贝尔照明器材有限公司 Arrangement for directed light emission

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19615523C1 (en) * 1996-04-19 1997-11-20 Fraenkische Leuchten Gmbh Translucent light-cover
DE10241941B4 (en) * 2002-09-10 2015-07-02 Zumtobel Lighting Gmbh Lighting system, adaptation element and luminaire with it

Citations (3)

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Publication number Priority date Publication date Assignee Title
US3860903A (en) * 1974-03-26 1975-01-14 Westinghouse Electric Corp High output low brightness ventilated luminaire
DE8528116U1 (en) * 1985-10-02 1987-02-12 Thorn Emi Licht GmbH, 5760 Arnsberg lamp
EP0235652A2 (en) * 1986-02-19 1987-09-09 Daume &amp; Jordan GmbH &amp; Co KG Anti-dazzle light fitting with a strip-like screening reflector

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GB2215447B (en) * 1987-11-06 1991-05-29 Designed Architectural Lightin Lighting installation

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Publication number Priority date Publication date Assignee Title
US3860903A (en) * 1974-03-26 1975-01-14 Westinghouse Electric Corp High output low brightness ventilated luminaire
DE8528116U1 (en) * 1985-10-02 1987-02-12 Thorn Emi Licht GmbH, 5760 Arnsberg lamp
EP0235652A2 (en) * 1986-02-19 1987-09-09 Daume &amp; Jordan GmbH &amp; Co KG Anti-dazzle light fitting with a strip-like screening reflector

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT401966B (en) * 1994-11-17 1997-01-27 Photonic Optische Geraete Gmbh LIGHTING DEVICE
DE4443741A1 (en) * 1994-12-08 1996-06-13 Hartmut S Engel lamp
AT412993B (en) * 1996-05-22 2005-09-26 Zumtobel Licht LAMP
DE19648310A1 (en) * 1996-11-21 1998-05-28 Zumtobel Licht Lamp with at least one light-attenuation part
WO1999027296A1 (en) * 1997-11-24 1999-06-03 Nordisk Edb-Miljø Aps A light reflecting device and a method for improving the quality of illumination for a fluorescent tube lighting fixture
US6042246A (en) * 1998-05-18 2000-03-28 Herbert Waldmann Gmbh & Co. Wide-beam indirect lamp assembly
DE19923224A1 (en) * 1999-04-07 2000-10-12 Zumtobel Staff Gmbh Lighting arrangement for attachment to the ceiling or a wall of a room
EP1254764A2 (en) * 2001-05-04 2002-11-06 Sibu Design GmbH &amp; Co KG Decorative plate, especially as ceiling element
EP1254764A3 (en) * 2001-05-04 2004-02-11 Sibu Design GmbH &amp; Co KG Decorative plate, especially as ceiling element
EP1359371A1 (en) * 2002-04-12 2003-11-05 Zumtobel Staff GmbH Luminaire with a diffuser
CN103119355A (en) * 2010-09-27 2013-05-22 宗拓贝尔照明器材有限公司 Arrangement for directed light emission
CN103119355B (en) * 2010-09-27 2015-10-14 宗拓贝尔照明器材有限公司 Directional light output device

Also Published As

Publication number Publication date
ATE123335T1 (en) 1995-06-15
EP0538727B1 (en) 1995-05-31
DE59202396D1 (en) 1995-07-06

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