EP1584861A2 - Ergonomic ceiling luminaire - Google Patents

Ergonomic ceiling luminaire Download PDF

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Publication number
EP1584861A2
EP1584861A2 EP05007578A EP05007578A EP1584861A2 EP 1584861 A2 EP1584861 A2 EP 1584861A2 EP 05007578 A EP05007578 A EP 05007578A EP 05007578 A EP05007578 A EP 05007578A EP 1584861 A2 EP1584861 A2 EP 1584861A2
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EP
European Patent Office
Prior art keywords
light
luminaire according
fluorescent tubes
luminaire
fluorescent
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP05007578A
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German (de)
French (fr)
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EP1584861B1 (en
EP1584861A3 (en
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Trilux GmbH and Co KG
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Trilux Lenze GmbH and Co KG
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Publication of EP1584861A2 publication Critical patent/EP1584861A2/en
Publication of EP1584861A3 publication Critical patent/EP1584861A3/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • 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
    • 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
    • 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
    • F21V13/02—Combinations of only two 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
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/02—Arrangement of electric circuit elements in or on lighting devices the elements being transformers, impedances or power supply units, e.g. a transformer with a rectifier
    • 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
    • F21V23/02—Arrangement of electric circuit elements in or on lighting devices the elements being transformers, impedances or power supply units, e.g. a transformer with a rectifier
    • F21V23/026—Fastening of transformers or ballasts
    • 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
    • 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 an ergonomic ceiling light, which in particular for the illumination of offices with Computer workstations is suitable.
  • Such lights usually have as bulbs Gas discharge lamps or fluorescent tubes on, below derer so-called photometric raster elements, as they For example, from DE 34 12 162 C1 are known arranged are by means of which emitted by the fluorescent tube Directed light and emitted glare-free down becomes. Although such lights are excellent for Worktop lighting worry, the room lighting conditions as unpleasant, because diffused light missing, the ceilings and walls lit up. For ceiling pendant lights This type is therefore provided that the fluorescent tubes also shine undirected up against the ceiling and the room diffused by the ceiling Light up the light.
  • the object of the invention is to provide such a ceiling light with fluorescent tubes, grid and lateral light distribution chambers to provide that low construction height having.
  • the object of the invention is also a lamp without additional bulbs in the lateral Lichtverteilhuntn for a sufficient luminance of the radiating surfaces the light distribution chambers to provide.
  • the object is according to a luminaire, the two arranged in parallel Fluorescent tubes and laterally on both sides spreading light distribution chambers and one below the Fluorescent tubes arranged photometric grid element contains, wherein between the fluorescent tubes an outside designed as a reflector elongated trough to record the electronic controls for the Fluorescent tubes is arranged.
  • the trough has a substantially rectangular Cross-section with an upward opening.
  • each one of the fluorescent tubes is arranged on both sides of the trough.
  • Below the trough and the fluorescent tubes extends the grid.
  • the fluorescent tubes projecting part of the side walls of the Trough diagonally bent outward and extends further horizontally above the fluorescent tubes further outside, leaving a substantial part of that of the neighboring Fluorescent tube in the direction of the lamp center plane emitted light from the fluorescent tube facing reflective side of the trough and his likewise reflective horizontal extension towards the lateral light distribution chamber is deflected. This will achieved an increased light input into the Lichtverteilsch.
  • the trough is associated with the further technical advantage that this increases the longitudinal stiffness in flat lights and consequently the luminaire housing is made correspondingly filigree can be.
  • the Lichtverteilhuntn consist of a substantially vertical boundary wall adjacent to the respective fluorescent tube made of transparent, diffuse light-scattering material, through which light enters the light distribution chamber, a laterally extending lower boundary wall also transparent, diffuse light-scattering material, diffused by the light from the light distribution chamber and an upper opaque cover, reflecting towards the inside of the light distribution chamber is and e.g. Made of polished aluminum sheet can. Cost-effective is a training as white powdered Sheet steel.
  • the radiating surface and the upper converge translucent cover in the course of their lateral Extension, so that they are in a common, to the Fluorescent tubes meet parallel outer edge, the light distribution chamber So a substantially triangular cross-section having.
  • the ratio of the lateral extent a light distribution chamber and its vertical extent at least 3: 1, more preferably at least 4.5: 1.
  • Suitable as a transparent light-scattering material Glass or translucent plastics with light scattering roughened surface, preferably roughened on both sides Surface, or plastics with light-scattering inclusions.
  • the inner surface of the radiating surfaces of the Lichtverteilwaitn are preferably with a fluorescent tube provided parallel stepped structure, which approximates as possible vertical incidence of light ensured.
  • At least one of the upper and lower boundary surfaces is preferred the Lichtverteilhuntn seen from the outside convex designed so that a good lateral luminance distribution the emission surface is achieved.
  • the Lichtverteilhuntn seen from the outside convex designed so that a good lateral luminance distribution the emission surface is achieved.
  • the radiating surface is convex and the Reflector flat and parallel to the ceiling.
  • the radiating surface level and after installation with the ceiling underside be aligned and the reflector convex.
  • an embodiment of the lamp is such, that only a part of the height of the lamp sunk in the ceiling and the luminaire is in the rest of the ceiling underside extends into the room, with the radiating surfaces the lateral light distribution chambers are convex of the ceiling underside approach. This will be a particularly pleasing Aesthetics of the lamp produced. Furthermore, this can be a required Installation depth can be achieved, the thickness of usual ceiling paneling does not exceed.
  • the grid is integrated into the luminaire body, so that the underside of the grid with the underside of the radiating surfaces the light distribution chambers are aligned. This is the case Risk that the edges of the adjacent edges of the grid Radiating surface of the light distribution chambers through the outer Sidebars of the grid is shadowed.
  • the preferred Embodiment therefore becomes the vertical light entrance wall the Lichtverteilhunt formed so that they formed at its lower edge with a lateral recess and this return from the mirror above the fluorescent tube is illuminated reflected light.
  • luminaires of the generic type succeed To manufacture a kind whose overall height is less than 4 times, preferably less than 3.5 times the fluorescent tube diameter is. Furthermore, more than 60% succeed of the light generated by the fluorescent tubes in the Direct light distribution chambers, so that the average luminance the emitting surfaces of Lichtverteilhuntn more than 25% of the average luminance of the grid at a radiating surface ratio from Lichtverteilhuntn to the grid of 6: 1.
  • the elements of the invention were substantially in shape elongated, parallel to the fluorescent tubes Profiles described.
  • the skilled person is able on both sides of the longitudinal extent of the fluorescent tubes in planes provide terminating elements transverse to their axis.
  • the figures each show a half of respect to the Center plane M symmetrical luminaire 1 in cross section.
  • the Luminaire 1 consists in principle of the fluorescent tube 2, the light distribution chamber 3, the grid 4, and optionally the housing 5 with only partially indicated fasteners 51 for the delivery of the lamp to the ceiling construction 7.
  • the fluorescent tubes 2 are electronic operating elements 21 required according to the invention inside a mirror formed outside elongated trough 6 disposed between the fluorescent tubes are.
  • the Lichtverteilhuntn 3 consist in principle of a formed inside as a mirror or diffuser reflector upper boundary wall 31, one to the fluorescent tube. 2 adjacent vertical boundary wall 33 of transparent, diffused light scattering material through which light from the fluorescent tube enters the Lichtverteilhunt, as well a lower, serving as a radiating surface boundary wall 32 made of transparent, diffused light-scattering material.
  • the reflector may be formed on the upper side of the housing so that this is not an integral part of Light distribution chamber 3 is.
  • the grid 4 consists in a known manner of two sidebars 42, between which there are a variety of cross blades 43 extend; on the middle of the cross blades 43 is upper side a V-reflector 41 attached.
  • Fig. 1 shows a recessed luminaire 1 with a flat radiating surface 32 of the Lichtverteilhunt, with the ceiling lower edge 71st flees.
  • the reflector 31 is designed as a convex mirror.
  • the fluorescent tube 2 is located in one down open housing, consisting of the vertical side wall 62 the trough 6, an upper mirror 64 and the vertical Light entrance boundary wall 33 of the light distribution chamber 3 is formed.
  • By the arrows 8 is indicated that of the fluorescent tube in the direction of the trough 6 radiated Light over the mirror surfaces 62 and 64 into the light distribution chamber 3 is steered.
  • FIG. 2 shows a surface-mounted luminaire 1 with a planar reflector 31 and a convexly outwardly curved radiating surface 32.
  • the trough 6 was provided with a conical widening 63 with an opening angle of 15 to 40 °.
  • Arrows 8 indicate the deflection of the light from the back of the fluorescent tube in the Lichtverteilhunt.
  • the grid 4 was included in the lamp body, so that the lower edge 44 of the grid 4 is aligned with the radiating surface 32.
  • Fig. 3 shows an embodiment of the invention, in which only a part of the height of the lamp 1 sunk in the ceiling 7 is.
  • the reflector 31 is designed as a convex mirror.
  • the Radiating surface 32 is also curved convexly outwards. To avoid shading at the adjacent to the grid 4 Edge of the radiating surface 32 through the side longitudinal lamella 42 has the vertical light entrance wall 33 the Lichtverteilhunt a return 34.
  • the arrows 9 indicate that the return 34 through from the fluorescent tube 2 obliquely upwardly emitted light by reflection is illuminated on the mirror surface 64, so that shadowing is avoided.
  • Fig. 4 shows an embodiment of the invention as shown in Fig. 3, wherein the upper boundary wall 31 of the Lichtverteilhunt is designed as a planar reflector.

Landscapes

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

Abstract

The aim of the invention is a ceiling luminaire (1) with a low installation height. The luminaire (1) accommodates two fluorescent lamps (2), from which light diffusers (3) extend to both sides. Arranged underneath the fluorescent lamp (2) is a louver element (4) to limit the angle of the reflected light beam downwards. Between the two florescent lights (2) is a hutch designed as a reflector, which contains all the electronic elements (21) of the luminaire (1).

Description

Die vorliegende Erfindung betrifft eine ergonomische Deckenleuchte, die insbesondere für die Ausleuchtung von Büros mit Bildschirmarbeitsplätzen geeignet ist.The present invention relates to an ergonomic ceiling light, which in particular for the illumination of offices with Computer workstations is suitable.

Derartige Leuchten weisen üblicherweise als Leuchtmittel Gasentladungslampen oder Leuchtstoffröhren auf, unterhalb derer sogenannte lichttechnische Rasterelemente, wie sie beispielsweise aus der DE 34 12 162 C1 bekannt sind, angeordnet sind, mittels derer das von der Leuchtstoffröhre abgegebene Licht gerichtet und blendfrei nach unten abgestrahlt wird. Obwohl derartige Leuchten für eine hervorragende Arbeitsplatzbeleuchtung sorgen, werden die Raumlichtverhältnisse als unangenehm empfunden, da diffuses Licht fehlt, das Decken und wände erhellt. Bei Deckenpendelleuchten dieser Art ist daher vorgesehen, dass die Leuchtstoffröhren auch ungerichtet nach oben gegen die Decke strahlen und den Raum durch von der Decke reflektiertes diffuses Licht erhellen.Such lights usually have as bulbs Gas discharge lamps or fluorescent tubes on, below derer so-called photometric raster elements, as they For example, from DE 34 12 162 C1 are known arranged are by means of which emitted by the fluorescent tube Directed light and emitted glare-free down becomes. Although such lights are excellent for Worktop lighting worry, the room lighting conditions as unpleasant, because diffused light missing, the ceilings and walls lit up. For ceiling pendant lights This type is therefore provided that the fluorescent tubes also shine undirected up against the ceiling and the room diffused by the ceiling Light up the light.

Bei Deckeneinbauleuchten ist es üblich, seitlich der Leuchtstoffröhren sogenannte Lichtverteilkammern vorzusehen, in die das seitlich von den Leuchtstoffröhren abgestrahlte Licht eintritt und über vergleichsweise großflächige, im wesentlichen horizontal ausgedehnte diffus-transparente Abstrahlflächen diffus abgestrahlt wird, siehe z. B. WO 98/29683, DE 279 12 314 U1, DE 100 06 410 A1 und DE 101 12 055 A1. Aufgrund der vergleichsweise großen vertikalen Ausdehnung derartiger Leuchten sind diese im Wesentlichen nur in Räumen mit abgehängter Decke einsetzbar, bei denen oberhalb der sichtbaren Decke noch ein ausreichender Luftraum zur Verfügung steht. Ferner ist es für eine ausreichende Leuchtdichte der seitlichen Lichtverteilkammern erforderlich, innerhalb der Lichtverteilkammern zusätzliche Leuchtmittel vorzusehen oder deren Abstrahlfläche entsprechend zu beschränken.For recessed ceiling luminaires, it is common to side of the fluorescent tubes to provide so-called Lichtverteilkammern, in the one emitted laterally from the fluorescent tubes Light enters and over comparatively large area, essentially horizontally extended diffuse-transparent radiating surfaces diffused, see, for. For example WO 98/29683, DE 279 12 314 U1, DE 100 06 410 A1 and DE 101 12 055 A1. Due to the comparatively large vertical extent Such lights are essentially only these Can be used in rooms with suspended ceiling, where above the visible ceiling still a sufficient airspace is available. Furthermore, it is sufficient for a Luminance of the lateral light distribution chambers required within the Lichtverteilkammern additional bulbs to provide or the emission area accordingly restrict.

Aufgabe der Erfindung ist es, eine derartige Deckenleuchte mit Leuchtstoffröhren, Raster und seitlichen Lichtverteilkammern zur Verfügung zu stellen, die eine geringe Bauhöhe aufweist. Aufgabe der Erfindung ist es ferner, eine Leuchte ohne zusätzliche Leuchtmittel in den seitlichen Lichtverteilkammern für eine ausreichende Leuchtdichte der Abstrahlflächen der Lichtverteilkammern zur Verfügung zu stellen. Schließlich ist es Aufgabe der Erfindung, eine Leuchte mit möglichst gleichmäßiger Leuchtdichte der Abstrahlflächen der seitlichen Lichtverteilkammern bereit zu stellen, insbesondere auch unter Vermeidung von Schattenbildungen, insbesondere im Bereich benachbart zu dem Raster.The object of the invention is to provide such a ceiling light with fluorescent tubes, grid and lateral light distribution chambers to provide that low construction height having. The object of the invention is also a lamp without additional bulbs in the lateral Lichtverteilkammern for a sufficient luminance of the radiating surfaces the light distribution chambers to provide. Finally, it is an object of the invention to provide a luminaire as uniform as possible luminance of the radiating surfaces of provide lateral light distribution chambers, in particular even while avoiding shadowing, in particular in the area adjacent to the grid.

Gegenstand ist dem gemäß eine Leuchte, die zwei parallel angeordnete Leuchtstoffröhren und beidseitig seitlich davon sich ausbreitende Lichtverteilkammern und ein unterhalb der Leuchtstoffröhren angeordnetes lichttechnisches Rasterelement enthält, wobei zwischen den Leuchtstoffröhren ein außenseitig als Reflektor ausgebildeter langgestreckter Trog zur Aufnahme der elektronischen Steuerelemente für die Leuchtstoffröhren angeordnet ist.The object is according to a luminaire, the two arranged in parallel Fluorescent tubes and laterally on both sides spreading light distribution chambers and one below the Fluorescent tubes arranged photometric grid element contains, wherein between the fluorescent tubes an outside designed as a reflector elongated trough to record the electronic controls for the Fluorescent tubes is arranged.

Vorzugsweise weist der Trog einen im Wesentlichen rechteckigen Querschnitt mit einer nach oben gerichteter Öffnung auf. Beidseitig des Troges ist je eine der Leuchtstoffröhren angeordnet. Unterhalb des Troges und der Leuchtstoffröhren erstreckt sich das Raster. Vorzugsweise ist der die Oberkante der Leuchtstoffröhren überragende Teil der Seitenwände des Troges schräg nach außen abgeknickt und erstreckt sich weiter horizontal oberhalb der Leuchtstoffröhren weiter nach außen, so dass ein wesentlicher Teil des von der benachbarten Leuchtstoffröhre in Richtung der Leuchtenmittelebene ausgesandten Lichtes von der der Leuchtstoffröhre zugewandten reflektierenden Seite des Troges und seiner ebenfalls reflektierenden horizontalen Erstreckung in Richtung auf die seitliche Lichtverteilkammer umgelenkt wird. Hierdurch wird ein erhöhter Lichteintrag in die Lichtverteilkammern erreicht.Preferably, the trough has a substantially rectangular Cross-section with an upward opening. On both sides of the trough each one of the fluorescent tubes is arranged. Below the trough and the fluorescent tubes extends the grid. Preferably, this is the top edge The fluorescent tubes projecting part of the side walls of the Trough diagonally bent outward and extends further horizontally above the fluorescent tubes further outside, leaving a substantial part of that of the neighboring Fluorescent tube in the direction of the lamp center plane emitted light from the fluorescent tube facing reflective side of the trough and his likewise reflective horizontal extension towards the lateral light distribution chamber is deflected. This will achieved an increased light input into the Lichtverteilkammern.

Der Trog ist mit dem weiteren technischen Vorteil verbunden, dass dieser bei flachen Leuchten die Längssteifigkeit erhöht und mithin das Leuchtengehäuse entsprechend filigraner ausgebildet werden kann.The trough is associated with the further technical advantage that this increases the longitudinal stiffness in flat lights and consequently the luminaire housing is made correspondingly filigree can be.

Die Lichtverteilkammern bestehen aus einer im Wesentlichen vertikalen, zur jeweiligen Leuchtstoffröhre benachbarten Begrenzungswand aus transparentem, diffus lichtstreuenden Material, durch die Licht in die Lichtverteilkammer eintritt, einer sich seitlich erstreckenden unteren Begrenzungswand aus ebenfalls transparentem, diffus lichtstreuenden Material, durch die Licht aus der Lichtverteilkammer diffus abgestrahlt wird, sowie einer oberen lichtundurchlässigen Abdeckung, die zur Innenseite der Lichtverteilkammer hin reflektierend ist und z.B. aus poliertem Aluminiumblech bestehen kann. Kostengünstig ist eine Ausbildung als weiß gepulvertes Stahlblech.The Lichtverteilkammern consist of a substantially vertical boundary wall adjacent to the respective fluorescent tube made of transparent, diffuse light-scattering material, through which light enters the light distribution chamber, a laterally extending lower boundary wall also transparent, diffuse light-scattering material, diffused by the light from the light distribution chamber and an upper opaque cover, reflecting towards the inside of the light distribution chamber is and e.g. Made of polished aluminum sheet can. Cost-effective is a training as white powdered Sheet steel.

Vorzugsweise konvergieren die Abstrahlfläche und die obere lichtdurchlässige Abdeckung im Verlauf ihrer seitlichen Erstreckung, so dass sie sich in einer gemeinsamen, zu den Leuchtstoffröhren parallelen Außenkante treffen, die Lichtverteilkammer also einem im wesentlichen dreieckigen Querschnitt aufweist. Preferably, the radiating surface and the upper converge translucent cover in the course of their lateral Extension, so that they are in a common, to the Fluorescent tubes meet parallel outer edge, the light distribution chamber So a substantially triangular cross-section having.

Vorzugsweise beträgt das Verhältnis der seitlichen Ausdehnung einer Lichtverteilkammer und ihrer vertikalen Ausdehnung mindestens 3:1, besonders bevorzugt mindesten 4,5:1.Preferably, the ratio of the lateral extent a light distribution chamber and its vertical extent at least 3: 1, more preferably at least 4.5: 1.

Als transparentes lichtstreuendes Material geeignet sind Glas oder lichtdurchlässige Kunststoffe mit lichtstreuend aufgerauter Oberfläche, vorzugsweise beidseitig aufgerauter Oberfläche, oder Kunststoffe mit lichtstreuenden Einschlüssen. Die innere Oberfläche der Abstrahlflächen der Lichtverteilkammern sind vorzugsweise mit einer zur Leuchtstoffröhre parallelen Stufenstruktur versehen, die einen möglichst angenähert senkrechten Lichteinfall gewährleistet.Suitable as a transparent light-scattering material Glass or translucent plastics with light scattering roughened surface, preferably roughened on both sides Surface, or plastics with light-scattering inclusions. The inner surface of the radiating surfaces of the Lichtverteilkammern are preferably with a fluorescent tube provided parallel stepped structure, which approximates as possible vertical incidence of light ensured.

Bevorzugt ist zumindest eine der oberen und unteren Begrenzungsflächen der Lichtverteilkammern von außen gesehen konvex ausgebildet, so dass eine gute seitliche Leuchtdichteverteilung der Abstrahlfläche erzielt wird. Auf diese Weise ist es möglich, bei einem Verhältnis von seitlicher Ausdehnung der Lichtverteilkammern zu deren Vertikalausdehnung (Höhe der zur Leuchtstoffröhre benachbarten vertikalen Begrenzungswand) von 4:1 bis 7:1 eine für das Auge als gleichmäßig empfundene Leuchtdichte der Abstrahlfläche zu erreichen.At least one of the upper and lower boundary surfaces is preferred the Lichtverteilkammern seen from the outside convex designed so that a good lateral luminance distribution the emission surface is achieved. In this way it is possible at a ratio of lateral expansion the Lichtverteilkammern to the vertical extent (Height of the vertical boundary wall adjacent to the fluorescent tube) from 4: 1 to 7: 1 one for the eye as evenly perceived luminance of the radiating surface to achieve.

Im Falle der Ausführung der Leuchte als Anbauleuchte ist vorzugsweise die Abstrahlfläche konvex ausgebildet und der Reflektor eben und parallel zur Decke.In the case of the execution of the luminaire as a surface-mounted luminaire is Preferably, the radiating surface is convex and the Reflector flat and parallel to the ceiling.

Im Falle der Ausführung der Leuchte als Einbauleuchte kann die Abstrahlfläche eben und nach Einbau mit der Deckenunterseite fluchtend ausgebildet sein und der Reflektor konvex. Besonders bevorzugt ist eine Ausführung der Leuchte derart, dass nur ein Teil der Bauhöhe der Leuchte in der Decke versenkt ist und die Leuchte sich im übrigen von der Deckenunterseite in den Raum erstreckt, wobei die Abstrahlflächen der seitliche Lichtverteilkammern sich konvex der Deckenunterseite annähern. Hierdurch wird eine besonders gefällige Ästhetik der Leuchte erzeugt. Ferner kann hierdurch ein erforderliche Einbautiefe erzielt werden, die die Dicke von üblichen Deckenverkleidungspaneelen nicht überschreitet.In the case of the design of the luminaire as recessed luminaire can the radiating surface level and after installation with the ceiling underside be aligned and the reflector convex. Particularly preferred is an embodiment of the lamp is such, that only a part of the height of the lamp sunk in the ceiling and the luminaire is in the rest of the ceiling underside extends into the room, with the radiating surfaces the lateral light distribution chambers are convex of the ceiling underside approach. This will be a particularly pleasing Aesthetics of the lamp produced. Furthermore, this can be a required Installation depth can be achieved, the thickness of usual ceiling paneling does not exceed.

Nach einer weiter bevorzugten Ausführungsform der Erfindung wird das Raster in den Leuchtenkörper integriert, so dass die Unterseite des Rasters mit der Unterseite der Abstrahlflächen der Lichtverteilkammern fluchtet. Dabei besteht das Risiko, dass die zum Raster benachbarten Kantenbereiche der Abstrahlfläche der Lichtverteilkammern durch die äußeren Seitenleisten des Rasters abgeschattet wird. In der bevorzugten Ausführungsform wird daher die senkrechte Lichteintrittswand der Lichtverteilkammer so ausgebildet, dass sie an ihrer Unterkante mit einem seitlichen Rücksprung ausgebildet wird und dieser Rücksprung von dem Spiegel oberhalb der Leuchtstoffröhre reflektiertem Licht beleuchtet wird.According to a further preferred embodiment of the invention the grid is integrated into the luminaire body, so that the underside of the grid with the underside of the radiating surfaces the light distribution chambers are aligned. This is the case Risk that the edges of the adjacent edges of the grid Radiating surface of the light distribution chambers through the outer Sidebars of the grid is shadowed. In the preferred Embodiment therefore becomes the vertical light entrance wall the Lichtverteilkammer formed so that they formed at its lower edge with a lateral recess and this return from the mirror above the fluorescent tube is illuminated reflected light.

Erfindungsgemäß gelingt es, Leuchten der gattungsbildenden Art herzustellen, deren Bauhöhe weniger als das 4-fache, vorzugsweise weniger als das 3,5-fache des Leuchtstoffröhrendurchmessers beträgt. Weiterhin gelingt es, mehr als 60% des von den Leuchtstoffröhren erzeugten Lichtes in die Lichtverteilkammern zu leiten, so dass die mittlere Leuchtdichte der Abstrahlflächen der Lichtverteilkammern mehr als 25% der mittleren Leuchtdichte des Rasters bei einem Abstrahlflächenverhältnis von Lichtverteilkammern zu dem Raster von 6:1 beträgt.According to the invention, luminaires of the generic type succeed To manufacture a kind whose overall height is less than 4 times, preferably less than 3.5 times the fluorescent tube diameter is. Furthermore, more than 60% succeed of the light generated by the fluorescent tubes in the Direct light distribution chambers, so that the average luminance the emitting surfaces of Lichtverteilkammern more than 25% of the average luminance of the grid at a radiating surface ratio from Lichtverteilkammern to the grid of 6: 1.

Die Elemente der Erfindung wurden im wesentlichen in Form langgestreckter, zu den Leuchtstoffröhren parallel verlaufender Profile beschrieben. Der Fachmann ist in der Lage, beidseitig der Längsausdehnung der Leuchtstoffröhren in Ebenen quer zu ihrer Achse Abschlusselemente vorzusehen.The elements of the invention were substantially in shape elongated, parallel to the fluorescent tubes Profiles described. The skilled person is able on both sides of the longitudinal extent of the fluorescent tubes in planes provide terminating elements transverse to their axis.

Die Erfindung wird nachfolgend anhand schematischer Querschnittszeichnungen beispielhaft näher erläutert, wobei gleiche Elemente in den verschiedenen Figuren durch gleiche Bezugszeichen bezeichnet sind. Es zeigen:

Fig. 1
eine schematische erste Ausführungsform der Erfindung in Form eines Einbauleuchte;
Fig. 2
eine schematisch zweite Ausführungsform in Form einer Anbauleuchte; und
Fig. 3 und 4
zwei schematische Ausführungsformen von Einbauleuchten, bei denen nur ein Teil der Bauhöhe in der Decke versenkt wird.
The invention will now be described by way of example with reference to schematic cross-sectional drawings, wherein like elements in the various figures are designated by like reference numerals. Show it:
Fig. 1
a schematic first embodiment of the invention in the form of a recessed luminaire;
Fig. 2
a schematic second embodiment in the form of a surface-mounted luminaire; and
3 and 4
two schematic embodiments of recessed lighting, in which only a portion of the height is sunk in the ceiling.

Die Figuren zeigen jeweils eine Hälfte der bezüglich der Mittelebene M symmetrischen Leuchte 1 im Querschnitt. Die Leuchte 1 besteht prinzipiell aus der Leuchtstoffröhre 2, der Lichtverteilkammer 3, dem Raster 4, sowie gegebenenfalls dem Gehäuse 5 mit nur teilweise angedeuteten Befestigungselementen 51 zur Abbringung der Leuchte an der Deckenkonstruktion 7. Für den Betrieb der Leuchtstoffröhren 2 sind elektronische Betriebselemente 21 erforderlich, die erfindungsgemäß innerhalb eines außen als Spiegel ausgebildeten langgestreckten Troges 6 zwischen den Leuchtstoffröhren angeordnet sind.The figures each show a half of respect to the Center plane M symmetrical luminaire 1 in cross section. The Luminaire 1 consists in principle of the fluorescent tube 2, the light distribution chamber 3, the grid 4, and optionally the housing 5 with only partially indicated fasteners 51 for the delivery of the lamp to the ceiling construction 7. For the operation of the fluorescent tubes 2 are electronic operating elements 21 required according to the invention inside a mirror formed outside elongated trough 6 disposed between the fluorescent tubes are.

Die Lichtverteilkammern 3 bestehen prinzipiell aus einer nach innen als Spiegel oder diffuserer Reflektor ausgebildeten oberen Begrenzungswand 31, einer zur Leuchtstoffröhre 2 benachbarten vertikalen Begrenzungswand 33 aus transparentem, diffus lichtstreuendem Material, durch die Licht von der Leuchtstoffröhre in die Lichtverteilkammer eintritt, sowie einer unteren, als Abstrahlfläche dienenden Begrenzungswand 32 aus transparentem, diffus lichtstreuenden Material. Alternativ kann der Reflektor oberseitig am Gehäuse ausgebildet sein, so dass dieser nicht integraler Bestandteil der Lichtverteilkammer 3 ist.The Lichtverteilkammern 3 consist in principle of a formed inside as a mirror or diffuser reflector upper boundary wall 31, one to the fluorescent tube. 2 adjacent vertical boundary wall 33 of transparent, diffused light scattering material through which light from the fluorescent tube enters the Lichtverteilkammer, as well a lower, serving as a radiating surface boundary wall 32 made of transparent, diffused light-scattering material. Alternatively, the reflector may be formed on the upper side of the housing so that this is not an integral part of Light distribution chamber 3 is.

Das Raster 4 besteht in bekannter Weise aus zwei Seitenleisten 42, zwischen denen sich eine Vielzahl von Querlamellen 43 erstrecken; auf der Mitte der Querlamellen 43 ist oberseitig ein V-Reflektor 41 aufgesetzt.The grid 4 consists in a known manner of two sidebars 42, between which there are a variety of cross blades 43 extend; on the middle of the cross blades 43 is upper side a V-reflector 41 attached.

Fig. 1 zeigt eine Einbauleuchte 1 mit ebener Abstrahlfläche 32 der Lichtverteilkammer, die mit der Deckenunterkante 71 fluchtet. Der Reflektor 31 ist als Konvexspiegel ausgebildet. Die Leuchtstoffröhre 2 befindet sich in einem nach unten offenen Gehäuse, das aus der Senkrechten Seitenwand 62 der Troges 6, einem oberen Spiegel 64 und der senkrechten Lichteintrittsbegrenzungswand 33 der Lichtverteilkammer 3 gebildet wird. Durch die Pfeile 8 ist angedeutet, dass von der Leuchtstoffröhre in Richtung auf den Trog 6 abgestrahltes Licht über die Spiegelflächen 62 und 64 in die Lichtverteilkammer 3 gelenkt wird.Fig. 1 shows a recessed luminaire 1 with a flat radiating surface 32 of the Lichtverteilkammer, with the ceiling lower edge 71st flees. The reflector 31 is designed as a convex mirror. The fluorescent tube 2 is located in one down open housing, consisting of the vertical side wall 62 the trough 6, an upper mirror 64 and the vertical Light entrance boundary wall 33 of the light distribution chamber 3 is formed. By the arrows 8 is indicated that of the fluorescent tube in the direction of the trough 6 radiated Light over the mirror surfaces 62 and 64 into the light distribution chamber 3 is steered.

Fig. 2 zeigt eine Anbauleuchte 1 mit ebenem Reflektor 31 und konvex nach außen gekrümmter Abstrahlfläche 32. In der Darstellung der Fig. 2 wurde der Trog 6 mit einer konischen Erweiterung 63 mit einem Öffnungswinkel von 15 bis 40° versehen. Pfeile 8 deuten die Umlenkung des Lichtes von der Rückseite der Leuchtstoffröhre in die Lichtverteilkammer an.
Ferner wurde bei dieser Darstellung das Raster 4 in den Leuchtenkörper einbezogen, so dass die Unterkante 44 des Rasters 4 mit der Abstrahlfläche 32 fluchtet.2 shows a surface-mounted luminaire 1 with a planar reflector 31 and a convexly outwardly curved radiating surface 32. In the illustration of FIG. 2, the trough 6 was provided with a conical widening 63 with an opening angle of 15 to 40 °. Arrows 8 indicate the deflection of the light from the back of the fluorescent tube in the Lichtverteilkammer.
Furthermore, in this illustration, the grid 4 was included in the lamp body, so that the lower edge 44 of the grid 4 is aligned with the radiating surface 32.

Fig. 3 zeigt eine Ausführungsform der Erfindung, bei der nur ein Teil der Bauhöhe der Leuchte 1 in der Decke 7 versenkt ist. Der Reflektor 31 ist als Konvexspiegel ausgebildet. Die Abstrahlfläche 32 ist ebenfalls konvex nach außen gekrümmt. Zur Vermeidung einer Abschattung der an der zum Raster 4 benachbarten Kante der Abstrahlfläche 32 durch die Seitenlängslamelle 42 weist die senkrechte Lichteintrittswand 33 der Lichtverteilkammer einen Rücksprung 34 auf. Die Pfeile 9 deuten an, dass der Rücksprung 34 durch von der Leuchtstoffröhre 2 nach schräg oben abgestrahltes Licht durch Reflexion an der Spiegelfläche 64 beleuchtet wird, so dass Schattenbildung vermieden wird.Fig. 3 shows an embodiment of the invention, in which only a part of the height of the lamp 1 sunk in the ceiling 7 is. The reflector 31 is designed as a convex mirror. The Radiating surface 32 is also curved convexly outwards. To avoid shading at the adjacent to the grid 4 Edge of the radiating surface 32 through the side longitudinal lamella 42 has the vertical light entrance wall 33 the Lichtverteilkammer a return 34. The arrows 9 indicate that the return 34 through from the fluorescent tube 2 obliquely upwardly emitted light by reflection is illuminated on the mirror surface 64, so that shadowing is avoided.

Schließlich zeigt Fig. 4 eine Ausführungsform der Erfindung wie Fig. 3, wobei die obere Begrenzungswand 31 der Lichtverteilkammer als ebener Reflektor ausgebildet ist.Finally, Fig. 4 shows an embodiment of the invention as shown in Fig. 3, wherein the upper boundary wall 31 of the Lichtverteilkammer is designed as a planar reflector.

Zur Vereinfachung der Darstellung wurden in den Figuren jeweils mehrere Elemente der Erfindung variiert. Hierdurch ist keine Beschränkung der Erfindung auf die Kombination bestimmter Elemente beabsichtigt. Vielmehr kann die bevorzugte Ausbildung des Rücksprungs 34 gemäß Fig. 3 und 4 bevorzugt auch bei einer Anbauleuchte gemäß Fig. 2 eingesetzt werden. Ferner kann es ästhetischen oder lichttechnischen Gründen wünschenswert sein, bei einer Leuchte mit nur teilweiser Versenkung der Bauhöhe in die Decke gemäß Fig. 3 oder 4 das Raster 4 nur teilweise oder gar nicht in den Leuchtekörper einzubeziehen, wie in Fig. 1 dargestellt.To simplify the illustration were in the figures, respectively Several elements of the invention vary. This is no Limitation of the invention to the combination of certain elements intended. Rather, the preferred training of the Return 34 according to FIGS. 3 and 4 preferably also in the case of a surface-mounted luminaire 2 are used according to FIG. Furthermore, it can be aesthetic or photometric reasons, be desirable in a luminaire with only partial sinking of the height in the ceiling of FIG. 3 or 4, the grid 4 only partially or not to be included in the luminaire body, as in FIG. 1 shown.

Claims (10)

Leuchte enthaltend zwei parallel angeordnete Leuchtstoffröhren und beidseitig seitlich davon sich ausbreitende Lichtverteilkammern und ein unterhalb der Leuchtstoffröhren angeordnetes lichttechnisches Rasterelement zur Begrenzung des Abstrahlwinkels der Leuchtstoffröhren nach unten wobei zwischen den Leuchtstoffröhren ein außenseitig als Reflektor ausgebildeter langgestreckter Trog zur Aufnahme der elektronischen Betriebselemente für die Leuchtstoffröhren angeordnet ist.Luminaire containing two parallel fluorescent tubes and bilaterally spreading from both sides Lichtverteilkammern and below the fluorescent tubes arranged photometric grid element for limiting the radiation angle of the fluorescent tubes down where between the fluorescent tubes on the outside as a reflector formed elongated Trough for holding the electronic operating elements is arranged for the fluorescent tubes. Leuchte nach Anspruch 1, wobei das Verhältnis der Horizontalausdehnung der Lichtverteilkammern quer zur Ausrichtung der Leuchtstoffröhren zur vertikalausdehnung mindestens 3:1, vorzugsweise mindestens 4,5:1 beträgt.Luminaire according to claim 1, wherein the ratio of the horizontal extent the Lichtverteilkammern across to the alignment the fluorescent tubes for vertical expansion at least 3: 1, preferably at least 4.5: 1. Leuchte nach Anspruch 1 oder 2, wobei die Oberseiten der Lichtkammern als Reflektoren ausgebildet sind und die Unterseiten aus einem lichtstreuenden transparenten Material bestehen.Luminaire according to claim 1 or 2, wherein the upper sides the light chambers are designed as reflectors and the undersides of a light-diffusing transparent Material exist. Leuchte nach einem der Ansprüche 1 bis 3, wobei Oberseite und Unterseite der Lichtkammern nach der der Leuchtstoffröhre abgewandten Seite hin konvergieren. Luminaire according to one of claims 1 to 3, wherein the upper side and bottom of the light chambers after the Converge on the fluorescent tube. Leuchte nach einem der Ansprüche 1 bis 4, wobei die Lichtkammern der jeweiligen Leuchtstoffröhre zugewandte im wesentlichen senkrechte Begrenzungsflächen aus einem lichtstreuenden transparenten Material aufweisen.Luminaire according to one of claims 1 to 4, wherein the Light chambers facing the respective fluorescent tube essentially vertical boundary surfaces of one have light-scattering transparent material. Leuchte nach einem der Ansprüche 1 bis 5, wobei die Unterseiten der Lichtkammern konvex nach außen gewölbt ausgebildet sind.Luminaire according to one of claims 1 to 5, wherein the undersides the light chambers convex convex outwards are formed. Leuchte nach einem der Ansprüche 1 bis 6, wobei die Unterseite des lichttechnischen Rasterelementes mit den benachbarten Unterkanten der Lichtkammern fluchtet.Luminaire according to one of claims 1 to 6, wherein the underside the photometric grid element with the adjacent lower edges of the light chambers is aligned. Leuchte nach einem der Ansprüche 1 bis 7, wobei die im wesentlichen senkrechte Begrenzungsfläche der Lichtkammern an der zum lichttechnischen Rasterelement benachbarten Kante einem Rücksprung von der Leuchtstoffröhre weg aufweist.Luminaire according to one of claims 1 to 7, wherein the im significant vertical boundary surface of the light chambers at the adjacent to the lighting grid element Edge of a return from the fluorescent tube away. Leuchte nach einem der Ansprüche 1 bis B, wobei der langgestreckte Trog einen im wesentlichen rechteckigen Querschnitt mit oben liegender Öffnung aufweist.Luminaire according to one of claims 1 to B, wherein the elongated trough a substantially rectangular Has cross section with overhead opening. Leuchte nach einem der Ansprüche 1 bis 9, wobei sich der langgestreckte Trog im oberen Bereich nach oben hin erweitert.Luminaire according to one of claims 1 to 9, wherein the elongated trough in the upper area towards the top extended.
EP05007578A 2004-04-10 2005-04-07 Ergonomic ceiling luminaire Not-in-force EP1584861B1 (en)

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DE102004017686A DE102004017686A1 (en) 2004-04-10 2004-04-10 Ergonomic ceiling light
DE102004017686 2004-04-10

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EP1584861A2 true EP1584861A2 (en) 2005-10-12
EP1584861A3 EP1584861A3 (en) 2007-11-14
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EP (1) EP1584861B1 (en)
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US20060139925A1 (en) 2006-06-29
DE102004017686A1 (en) 2005-11-03
EP1584861B1 (en) 2011-08-03
US7232239B2 (en) 2007-06-19
ATE519068T1 (en) 2011-08-15
EP1584861A3 (en) 2007-11-14

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