EP1628070B1 - Illumination device - Google Patents

Illumination device Download PDF

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Publication number
EP1628070B1
EP1628070B1 EP05010931A EP05010931A EP1628070B1 EP 1628070 B1 EP1628070 B1 EP 1628070B1 EP 05010931 A EP05010931 A EP 05010931A EP 05010931 A EP05010931 A EP 05010931A EP 1628070 B1 EP1628070 B1 EP 1628070B1
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EP
European Patent Office
Prior art keywords
reflector
illumination device
lighting means
primary reflector
primary
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
EP05010931A
Other languages
German (de)
French (fr)
Other versions
EP1628070A3 (en
EP1628070A2 (en
Inventor
Peter Ernst
Robert Ochsenschläger
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.)
Aldi Einkauf GmbH and Co OHG
Original Assignee
Aldi Einkauf GmbH and Co OHG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Aldi Einkauf GmbH and Co OHG filed Critical Aldi Einkauf GmbH and Co OHG
Priority to SI200530067T priority Critical patent/SI1628070T1/en
Publication of EP1628070A2 publication Critical patent/EP1628070A2/en
Publication of EP1628070A3 publication Critical patent/EP1628070A3/en
Application granted granted Critical
Publication of EP1628070B1 publication Critical patent/EP1628070B1/en
Priority to CY20071101339T priority patent/CY1106937T1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F21S8/02—Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters
    • F21S8/026—Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters intended to be recessed in a ceiling or like overhead structure, e.g. suspended ceiling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F21S41/36—Combinations of two or more separate reflectors
    • 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
    • F21V11/02—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using parallel laminae or strips, e.g. of Venetian-blind type
    • 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
    • F21V13/10—Combinations of only two kinds of elements the elements being reflectors and screens
    • 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
    • F21V7/0025—Combination of two or more reflectors for a single light source
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/04—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures
    • F21S8/06—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures by suspension
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • 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
    • F21W2131/405—Lighting for industrial, commercial, recreational or military use for shop-windows or displays
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • F21Y2103/10—Elongate light sources, e.g. fluorescent tubes comprising a linear array of point-like light-generating elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the invention relates to a lighting device, in particular ceiling recessed or suspended luminaire, with a housing and a lamp arranged therein, and with a reflector for the lamp, which reflector is at least two parts with primary reflector and secondary reflector, with both reflectors with respect to the between arranged bulbs are opposite, and wherein a blend grid for the bulb carries the primary reflector.
  • a primary reflector which is integrated as it were in the associated Blendraster.
  • the aggregate of glare grid and primary reflector is connected at the edge to the secondary reflector, which also forms the housing. This is in need of improvement in view of any changes to the reflectors and / or retrofitting.
  • the invention is based on the technical problem of further developing a lighting device of the type described above, that in particular lateral areas with goods located there experience better illumination, and this should be achieved with a simplified structure.
  • a generic lighting device in the context of the invention is characterized in that the primary reflector is designed to be interchangeable and pushed with respective transverse slots on the blend grid and is held thereon.
  • This glare grid is usually found in such lighting devices mandatory, below the light source to cover the free view of the bulb or to avoid dazzling effects emanating from it.
  • the relevant screen grid is equipped with a plurality of lamellae, which are arranged perpendicular to the longitudinal extent compared to the regular rod-shaped light source. Since the light leaves such a rod-shaped light source mostly in the radial direction, the slats find themselves in parallel radial planes and thus hinder the light emission in the radial direction practically not or only insignificantly. In contrast, obliquely radiated light and the resulting glare is effectively prevented in comparison to these radial planes.
  • such a blind grid with its slats now serves to support the primary reflector.
  • the primary reflector is designed to be interchangeable and equipped with respective transverse slots and pushed onto the blind grid or its slats and is held on the blind grid. D. h., The frictional forces built up between the said transverse slots and the slats are sufficient not only to properly hold the primary reflector in the desired position, but also to do so permanently. At the same time allows such
  • the two reflectors preferably surround the illuminant except for lateral free areas, wherein the primary reflector additionally ensures that the illuminant is covered in a plan view of the illumination device as a whole.
  • the light bulb is thus completely covered, accordingly unwanted glare can not occur.
  • the reflectors are usually equipped with mutually facing convex surfaces.
  • the direct emission is thus largely obtuse
  • the two leaving the illuminant and passing through the lateral free areas beam cone include an angle between about 90 ° and 150 ° to 160 °, with preferably an obtuse angle of 120 ° to 130 ° is observed. Of course this is not mandatory.
  • the lighting device is placed regularly in the middle of the longitudinal extent over a corridor between two shelves, so that the emphasis of the invention on the lateral radiation ensures a particularly effective illumination of the shelves and the goods placed there.
  • the optimum height position of the illumination device described can be found with the help of simple trigonometric calculations to still depend on the side shelves proper illumination and the particularly far to reach the top placed goods.
  • the lighting device described convinces by a particularly balanced lighting of the lateral edge areas such as the floor, which positively influence the buying behavior.
  • the primary reflector and the secondary reflector are largely mirror-symmetrical in comparison to a longitudinal plane of symmetry of the housing of the illumination device. It likes the bulb located on the longitudinal plane of symmetry.
  • This is preferably a neon-based fluorescent tube, for example, or else an LED strip which carries a multiplicity of LEDs (Light Emitting Diodes) in longitudinal extension.
  • LEDs Light Emitting Diodes
  • white light LEDs and preferably those which emulate a black body with a temperature of about 4000 Kelvin, so produce a particularly warm white light. This can be achieved by mixing individual colored LEDs in the basic colors green, blue and red.
  • the triangular tip or V-tip may have a flattening adapted to the transverse extent of the luminous means.
  • the invention takes into account the fact that the light source or at this point mostly used arc tube is designed in cross-section circular with finite extent.
  • the flattening may correspond approximately to the radius of this arc tube, so that mainly at an acute angle emitted by the light source downward light thrown directly onto the reflector legs of the primary reflector and exits from there under increased skew angle from the housing.
  • the reflector legs of the primary reflector can extend in vertical direction to below the side edge of the secondary reflector, by a predetermined amount. In this way, a lateral Lichtaustrittshorizontalspalt is defined, ie a gap that allows horizontal light emission.
  • a lateral Lichtausbergshorizontalspalt is defined, ie a gap that allows horizontal light emission.
  • the reflector legs of the primary reflector in the horizontal direction and foot side have a predetermined distance from the side edge of the secondary reflector, so that in each case a lateral Lichtauslingersvertikalspalt is defined. This additionally favors a vertical light emission.
  • the secondary reflector may have a cross-sectionally arcuate, double-arched, semicircular, parabolic or comparable design.
  • one or more openings are conceivable to realize a light emission not only down, but also up out of the housing, so that the ceiling undergoes illumination.
  • the invention also proposes to make the primary reflector interchangeable and variable.
  • the primary reflector is designed as a cross-sectionally substantially V-shaped and optionally coated sheet, which is held, for example, on end plates of the housing, so that the exchange is easy and quick.
  • the primary reflector can also be attached to an optional blind grid, which further simplifies the exchange.
  • a lighting device which is designed in the context of the example and not restrictive as recessed ceiling light.
  • the lighting device has a housing 1, which is equipped with optional head-side spring legs 2, which engage in not shown grooves in a ceiling construction.
  • a lighting means 3 is arranged, which act in neon-based fluorescent tube or neon tube. Alternatively, a light bar with LEDs could be used.
  • a reflector 4, 5 ensures that the (white) light radiated radially in radial cross section by the rod-shaped luminous means 3 experiences a desired deflection.
  • the reflector 4, 5 is constructed in two parts with primary reflector 4 and secondary reflector 5. Both reflectors 4, 5 face each other with respect to the largely arranged therebetween bulbs 3.
  • the primary reflector 4 is designed to be interchangeable and is in the context of the variant of FIGS. 1 a, 1 b pushed and held with respective transverse slots on a blind raster R. In fact, individual lamellae of this blend screen R dip into the respective transverse slots, the frictional forces built up thereby keeping the primary reflector 4 in the desired position.
  • a measure M is defined, which expresses how far associated reflector legs 4a, 4b of the primary reflector 4 in the vertical direction V extend to a side edge of the secondary reflector 5, as will be explained in detail below.
  • this embodiment ensures a problem-free retrofitting of existing lighting devices with only secondary reflector 5 by attaching the additional primary reflector. 4
  • the primary reflector 4 covers the illuminant 3 in plan view of the illumination device (arrow A in FIG. 1b), so that the fluorescent tube 3 realized at this point can not be seen from below when the illumination device is installed in the ceiling , The same applies if the lighting device is designed as a pendant lamp. Likewise, when the lighting device is used as wall lighting use. Both reflectors 4, 5 are equipped with mutually facing convex surfaces F.
  • the two reflectors 4, 5 enclose the illuminant 3 almost completely taking into account lateral free areas 6. Through these free areas 6, the light emanating from the light source 3 can leave the housing 1 directly.
  • two directly emitting light cone 7, 8 are defined in each case, which are indicated by solid lines in Figs. 1 b and 2b.
  • these two light cones 7, 8 form an obtuse or almost right angle ⁇ within which no direct radiation is emitted.
  • the area swept by the two light cones 7, 8 (angle ⁇ ) is approximately 160 °. Consequently, the two light cones 7, 8 include opening angles ⁇ of approximately 35 ° to 40 °, which is not mandatory, however.
  • the illumination device is generally arranged in comparison with merely indicated bilateral shelves 9, 10 above a corridor illuminated therewith such that the respective shelves 9, 10 are illuminated from the floor to the head mainly by means of the directly emitted light from the respective light cones 7, 8 become.
  • the floor area experiences only a practically indirect illumination by radiation reflected from the primary reflector 4 to the secondary reflector 5 almost vertically leaves the secondary reflector 5 and here provides the desired lighting conditions (see the illustration in Fig. 2b). Due to this multiple reflection, however, a slightly smaller light intensity compared to the light cones 7, 8 is to be expected here, which, however, is virtually impossible because of the smaller area compared to the laterally illuminated surface of the shelves 9 and 10, which must be illuminated Weight drops.
  • the primary reflector 4 and the secondary reflector 5 are mirror-symmetrical in comparison to a longitudinal plane of symmetry S of the housing 1 and consequently of the illumination device as a whole. On this Lssenssymmetrieebene S is also the bulb 3.
  • the primary reflector 4 is mostly V-shaped or triangular with reflector legs 4a, 4b executed, which intersect in a triangle tip or V-tip 11, which comes closest to the light source 3. It can do this Triangle tip or V-tip 11 also be executed flattened, as can be seen in Fig. 2b and here have a flat 12.
  • the flattening 12 is arranged horizontally in the embodiment and has a length which substantially corresponds to the radius of the luminous means 3 in cross section, but this is not mandatory.
  • the reflector legs 4a, 4b of the primary reflector 4 extend in the vertical direction V by a predetermined amount M to below the side edge of the secondary reflector 5, so that a lateral light exit horizontal gap in the form of a vertical component 6a of the lateral free area 6 is present.
  • a light exit vertical gap 6b may also be realized as a horizontal component of the lateral free area 6 (cf., FIG. 1b). This is explained by the fact that the reflector legs 4a, 4b additionally in the horizontal direction H foot side have a predetermined distance B to the side edge of the secondary reflector 5.
  • the secondary reflector 5 has an approximately semicircular shape in cross-section, with the illuminant 3 largely being arranged in the center of this semicircle or its convex surfaces F.
  • a double-arcuate embodiment according to FIG. 2b may also be realized.
  • Other designs, such as purely arched or parabolic are conceivable and are encompassed by the spirit of the invention.
  • the luminous means 3 is arranged predominantly close to the center in comparison to the secondary reflector 5, the reflected light is radiated mainly vertically out of the housing 1, while the non-reflected directly emerging light - as described - largely obliquely leaves the housing 1.
  • the luminous means 3 is a fluorescent tube 3, although of course it is also possible to realize a light strip with a multiplicity of LEDs, which can advantageously be arranged on the longitudinal symmetry plane S and / or on both sides thereof.
  • the convex surfaces F of the primary reflector 4 are indicated in accordance with the indicated beam guidance according to FIG. 2 b in such a way that the light impinging on them mainly strikes the secondary reflector 5. This is achieved by placing the center of the luminous means above the V-tip 11 or in the middle of the flattening 12 and the reflector legs 4a, 4b increasingly open in vertical projection of the luminous means 3 onto the primary reflector 4.

Abstract

The lighting device has a housing (1) containing a light source (3). The reflector (4, 5) is made in at least two parts: a primary reflector (4) and a secondary reflector (5). The two reflectors are arranged with the light source between them. The light source has a louver (R), which carries the primary reflector, so that this reflector can be more easily changed.

Description

Die Erfindung betrifft eine Beleuchtungseinrichtung, insbesondere Deckeneinbau- oder Hänge-Leuchte, mit einem Gehäuse und einem darin angeordneten Leuchtmittel, und mit einem Reflektor für das Leuchtmittel, welcher Reflektor wenigstens zweiteilig mit Primärreflektor und Sekundärreflektor aufgebaut ist, wobei sich beide Reflektoren mit Bezug zum dazwischen angeordneten Leuchtmittel gegenüber liegen, und wobei ein Blendraster für das Leuchtmittel den Primärreflektor trägt.The invention relates to a lighting device, in particular ceiling recessed or suspended luminaire, with a housing and a lamp arranged therein, and with a reflector for the lamp, which reflector is at least two parts with primary reflector and secondary reflector, with both reflectors with respect to the between arranged bulbs are opposite, and wherein a blend grid for the bulb carries the primary reflector.

Im gattungsbildenden Stand der Technik nach der GB 1 527 274 A ist ein Primärreflektor realisiert, welcher gleichsam in das zugehörige Blendraster integriert ist. Das Aggregat aus Blendraster und Primärreflektor wird jeweils randseitig mit dem Sekundärreflektor verbunden, der zugleich das Gehäuse bildet. Das ist im Hinblick auf etwaige Veränderungen an den Reflektoren und/oder eine Nachrüstung verbesserungsbedürftig.In the generic state of the art according to the GB 1 527 274 A is realized a primary reflector, which is integrated as it were in the associated Blendraster. The aggregate of glare grid and primary reflector is connected at the edge to the secondary reflector, which also forms the housing. This is in need of improvement in view of any changes to the reflectors and / or retrofitting.

Darüber hinaus arbeitet der Stand der Technik nach der US-PS 3 009 054 oder auch entsprechend der FR 604 343 A ebenfalls mit zweiteiligen Reflektoren aus Primärreflektor und Sekundärreflektor.In addition, the state of the art works according to the U.S. Patent 3,009,054 or according to the FR 604 343 A also with two-part reflectors of primary reflector and secondary reflector.

Der Erfindung liegt das technische Problem zugrunde, eine Beleuchtungseinrichtung der eingangs beschriebenen Gestaltung so weiter zu entwickeln, dass insbesondere seitliche Bereiche mit dort befindlichen Waren eine bessere Ausleuchtung erfahren, wobei dies mit vereinfachtem Aufbau erreicht werden soll.The invention is based on the technical problem of further developing a lighting device of the type described above, that in particular lateral areas with goods located there experience better illumination, and this should be achieved with a simplified structure.

Zur Lösung dieser technischen Problemstellung ist eine gattungsgemäße Beleuchtungseinrichtung im Rahmen der Erfindung dadurch gekennzeichnet, dass der Primärreflektor austauschbar gestaltet ist und mit jeweiligen Querschlitzen auf das Blendraster aufgeschoben und hierauf gehalten wird. Dieses Blendraster findet sich an solchen Beleuchtungseinrichtungen meistens obligatorisch, und zwar unterhalb des Leuchtmittels, um den freien Blick auf das Leuchtmittel abzudecken bzw. von ihm ausgehende Blendwirkungen zu vermeiden.To solve this technical problem, a generic lighting device in the context of the invention is characterized in that the primary reflector is designed to be interchangeable and pushed with respective transverse slots on the blend grid and is held thereon. This glare grid is usually found in such lighting devices mandatory, below the light source to cover the free view of the bulb or to avoid dazzling effects emanating from it.

Meistens ist das betreffende Blendraster mit einer Vielzahl von Lamellen ausgerüstet, die im Vergleich zum regelmäßig stabförmigen Leuchtmittel senkrecht zu dessen Längserstreckung angeordnet sind. Da das Licht ein solches stabförmiges Leuchtmittel zumeist in Radialrichtung verlässt, finden sich die Lamellen in parallel zueinander angeordneten Radialebenen und behindern somit den Lichtaustritt in Radialrichtung praktisch nicht oder nur unwesentlich. Dagegen wird im Vergleich zu diesen Radialebenen schräg abgestrahltes Licht und daraus resultierende Blendwirkung wirkungsvoll verhindert.In most cases, the relevant screen grid is equipped with a plurality of lamellae, which are arranged perpendicular to the longitudinal extent compared to the regular rod-shaped light source. Since the light leaves such a rod-shaped light source mostly in the radial direction, the slats find themselves in parallel radial planes and thus hinder the light emission in the radial direction practically not or only insignificantly. In contrast, obliquely radiated light and the resulting glare is effectively prevented in comparison to these radial planes.

Im Rahmen der Erfindung dient nun ein solches Blendraster mit seinen Lamellen dazu, den Primärreflektor zu tragen. In diesem Zusammenhang ist der Primärreflektor austauschbar gestaltet und mit jeweiligen Querschlitzen ausgerüstet sowie auf das Blendraster bzw. dessen Lamellen aufgeschoben und wird auf dem Blendraster gehalten. D. h., die zwischen den besagten Querschlitzen und den Lamellen aufgebauten Reibungskräfte reichen aus, um den Primärreflektor nicht nur einwandfrei in der gewünschten Position zu halten, sondern dies auch dauerhaft zu tun. Gleichzeitig ermöglicht eine solcheIn the context of the invention, such a blind grid with its slats now serves to support the primary reflector. In this context, the primary reflector is designed to be interchangeable and equipped with respective transverse slots and pushed onto the blind grid or its slats and is held on the blind grid. D. h., The frictional forces built up between the said transverse slots and the slats are sufficient not only to properly hold the primary reflector in the desired position, but also to do so permanently. At the same time allows such

Ausgestaltung den Austausch des Primärreflektors sowie die Nachrüstung von Beleuchtungsvorrichtungen mit einem solchen Primärreflektor, die bisher nur mit einem Reflektor ausgerüstet sind.Design the replacement of the primary reflector and the retrofitting of lighting devices with such a primary reflector, which are previously equipped only with a reflector.

Dieser ursprünglich vorhandene Reflektor übernimmt in Verbindung mit dem nachgerüsteten Primärreflektor nun die Funktion als Sekundärreflektor. Dabei umschließen die beiden Reflektoren das Leuchtmittel bevorzugt bis auf seitliche Freibereiche, wobei der Primärreflektor ergänzend dafür sorgt, dass das Leuchtmittel in Aufsicht auf die Beleuchtungseinrichtung im Ganzen abgedeckt wird. In Verbindung mit den Lamellen des Blendrasters wird das Leuchtmittel folglich vollständig abgedeckt, können dementsprechend unerwünschte Blendwirkungen nicht auftreten. Im Übrigen sind die Reflektoren meistens mit zueinander weisenden konvexen Flächen ausgerüstet.This originally existing reflector, in conjunction with the retrofitted primary reflector, now functions as a secondary reflector. In this case, the two reflectors preferably surround the illuminant except for lateral free areas, wherein the primary reflector additionally ensures that the illuminant is covered in a plan view of the illumination device as a whole. In conjunction with the lamellae of the blend screen, the light bulb is thus completely covered, accordingly unwanted glare can not occur. Incidentally, the reflectors are usually equipped with mutually facing convex surfaces.

Durch diese Maßnahmen gelangt von dem Leuchtmittel ausgehendes Licht zwar unverändert direkt in den zu beleuchtenden Raum, aber nur durch die zumeist zwei seitlichen Freibereiche in schräger Richtung. Die Direktabstrahlung erfolgt also größtenteils stumpfwinklig, wobei die beiden das Leuchtmittel verlassenden und durch die seitlichen Freibereiche hindurchtretenden Strahlkegel einen Winkel zwischen ca. 90° und 150° bis 160° einschließen, wobei bevorzugt ein stumpfer Winkel von 120° bis 130° beobachtet wird. Das ist natürlich nicht zwingend.Through these measures, light emanating from the illuminant passes, unchanged, directly into the room to be illuminated, but only through the mostly two lateral free areas in an oblique direction. The direct emission is thus largely obtuse, the two leaving the illuminant and passing through the lateral free areas beam cone include an angle between about 90 ° and 150 ° to 160 °, with preferably an obtuse angle of 120 ° to 130 ° is observed. Of course this is not mandatory.

Sämtliche übrige Strahlung von dem Leuchtmittel wird dagegen entweder von dem Primärreflektor oder von dem Sekundärreflektor oder von beiden in den Raum abgegeben. Dadurch kommt es bereits zu einer lichttechnisch bedeutend besseren und gewollten Ausleuchtung der Seitenbereiche im Vergleich zum direkt unter der Beleuchtungseinrichtung vorhandenen Boden.On the other hand, all the remaining radiation from the light source is emitted either from the primary reflector or from the secondary reflector or from both into the room. As a result, the illumination of the side areas is significantly better and more deliberate compared to the floor directly under the illumination device.

In diesem Zusammenhang wird die Beleuchtungseinrichtung regelmäßig mittig in Längserstreckung über einem Gang zwischen zwei Regalen platziert, so dass die erfindungsgemäße Betonung der seitlichen Abstrahlung für eine besonders effektive Ausleuchtung der Regale und der dort platzierten Waren sorgt. Das gilt sowohl für den Fall, dass die beschriebene Beleuchtungseinrichtung als Deckeneinbauleuchte ausgeführt ist als auch dann, wenn eine Hängeleuchte präferiert wird. Unter Berücksichtigung des zuvor angegebenen bevorzugten maximalen Schrägwinkels für die direkte Abstrahlung von ca. 150° bis 160° kann die optimale Höhenposition der beschriebenen Beleuchtungseinrichtung mit Hilfe einfacher trigonometrischer Berechnungen gefunden werden, um in Abhängigkeit von den seitlichen Regalen dennoch eine einwandfreie Ausleuchtung auch der besonders weit oben platzierten Waren zu erreichen.In this context, the lighting device is placed regularly in the middle of the longitudinal extent over a corridor between two shelves, so that the emphasis of the invention on the lateral radiation ensures a particularly effective illumination of the shelves and the goods placed there. This applies both in the event that the described lighting device is designed as a recessed ceiling light as well as when a pendant light is preferred. Taking into account the above-mentioned preferred maximum skew angle for the direct radiation of about 150 ° to 160 °, the optimum height position of the illumination device described can be found with the help of simple trigonometric calculations to still depend on the side shelves proper illumination and the particularly far to reach the top placed goods.

Im Ergebnis überzeugt die beschriebene Beleuchtungseinrichtung durch eine besonders ausgewogene Beleuchtung der seitlichen Randbereiche wie des Bodens, die das Kaufverhalten positiv beeinflussen.As a result, the lighting device described convinces by a particularly balanced lighting of the lateral edge areas such as the floor, which positively influence the buying behavior.

Zu diesem Zweck sind der Primärreflektor und der Sekundärreflektor größtenteils spiegelsymmetrisch im Vergleich zu einer Längssymmetrieebene des Gehäuses der Beleuchtungseinrichtung ausgebildet. Dabei mag sich das Leuchtmittel auf der Längssymmetrieebene befinden. Hierbei handelt es sich bevorzugt um eine Leuchtstoffröhre auf beispielsweise Neonbasis oder auch eine LED-Leiste, die eine Vielzahl von LED's (Light Emitting Diodes) in Längserstreckung trägt. Für diesen Fall wird man sogenannte Weißlicht-LED's einsetzen, und zwar bevorzugt solche, die einen schwarzen Strahler mit einer Temperatur von ca. 4000 Kelvin nachempfinden, also ein besonders warmes weißes Licht erzeugen. Das erreicht man durch entsprechende Mischung einzelner farbiger LED's in den Grundfarben grün, blau und rot.For this purpose, the primary reflector and the secondary reflector are largely mirror-symmetrical in comparison to a longitudinal plane of symmetry of the housing of the illumination device. It likes the bulb located on the longitudinal plane of symmetry. This is preferably a neon-based fluorescent tube, for example, or else an LED strip which carries a multiplicity of LEDs (Light Emitting Diodes) in longitudinal extension. For this case, one will use so-called white light LEDs, and preferably those which emulate a black body with a temperature of about 4000 Kelvin, so produce a particularly warm white light. This can be achieved by mixing individual colored LEDs in the basic colors green, blue and red.

Es hat sich bewährt, den Primärreflektor größtenteils dreieckförmig mit Reflektorschenkeln auszubilden, die sich in einer dem Leuchtmittel nächstkommenden Dreieckspitze schneiden. Folgerichtig kann man auch von einer V-Form des Primärreflektors mit den beiden Reflektorschenkeln und dementsprechend einer V-Spitze sprechen.It has proven useful to form the primary reflector for the most part in a triangular shape with reflector legs that intersect in a triangular tip closest to the illuminant. Consequently, one can also speak of a V-shape of the primary reflector with the two reflector legs and accordingly a V-tip.

Darüber hinaus mag die Dreieckspitze bzw. V-Spitze eine an die Querausdehnung des Leuchtmittels angepasste Abflachung aufweisen. Hier trägt die Erfindung dem Umstand Rechnung, dass das Leuchtmittel bzw. die an dieser Stelle zumeist eingesetzte Leuchtröhre im Querschnitt kreisförmig mit endlicher Ausdehnung ausgeführt ist. Dabei mag die Abflachung in etwa dem Radius dieser Leuchtröhre entsprechen, so dass hauptsächlich unter einem spitzen Winkel vom Leuchtmittel nach unten abgestrahltes Licht unmittelbar auf die Reflektorschenkel des Primärreflektors geworfen und von dort unter vergrößertem Schrägwinkel aus dem Gehäuse austritt.In addition, the triangular tip or V-tip may have a flattening adapted to the transverse extent of the luminous means. Here, the invention takes into account the fact that the light source or at this point mostly used arc tube is designed in cross-section circular with finite extent. In this case, the flattening may correspond approximately to the radius of this arc tube, so that mainly at an acute angle emitted by the light source downward light thrown directly onto the reflector legs of the primary reflector and exits from there under increased skew angle from the housing.

Die Reflektorschenkel des Primärreflektors können in Vertikalrichtung bis unterhalb des Seitenrandes des Sekundärreflektors reichen, und zwar um ein vorgegebenes Maß. Auf diese Weise wird ein seitlicher Lichtaustrittshorizontalspalt definiert, also ein Spalt, der einen horizontalen Lichtaustritt ermöglicht. Darüber hinaus mögen die Reflektorschenkel des Primärreflektors in Horizontalrichtung und fußseitig einen vorgegebenen Abstand vom Seitenrand des Sekundärreflektors besitzen, so dass hierdurch jeweils ein seitlicher Lichtaustrittsvertikalspalt definiert wird. Dadurch wird ergänzend ein vertikaler Lichtaustritt begünstigt.The reflector legs of the primary reflector can extend in vertical direction to below the side edge of the secondary reflector, by a predetermined amount. In this way, a lateral Lichtaustrittshorizontalspalt is defined, ie a gap that allows horizontal light emission. In addition, like the reflector legs of the primary reflector in the horizontal direction and foot side have a predetermined distance from the side edge of the secondary reflector, so that in each case a lateral Lichtaustrittsvertikalspalt is defined. This additionally favors a vertical light emission.

Es ist aber auch möglich, lediglich mit einem bzw. zwei beidseitig des Primärreflektors definierten Lichtaustrittsvertikalspalten oder nur Lichtaustrittshorizontalspalten zu arbeiten. So oder so treten hauptsächlich zwei Lichtkegel auf direktem Weg aus der beschriebenen Beleuchtungseinrichtung aus, die im Wesentlichen einen stumpfen Winkel einschließen und folglich hauptsächlich seitliche Vertikalbereiche und die dort zumeist vorgesehenen Regale beleuchten.But it is also possible to work only with one or two on both sides of the primary reflector defined Lichtaustrittsvertikalspalten or only Lichtaustrittshorizontalspalten. Either way, two light beams exit directly from the described illumination device, which essentially enclose an obtuse angle and consequently illuminate mainly lateral vertical areas and the shelves provided there for the most part.

Der Sekundärreflektor mag über eine im Querschnitt bogenförmige, doppeltbogenförmige, halbkreisförmige, parabole oder vergleichbare Gestaltung verfügen. Außerdem sind ein oder mehrere Durchbrechungen denkbar, um auch einen Lichtaustritt nicht nur nach unten, sondern auch nach oben aus dem Gehäuse heraus zu realisieren, damit die Decke eine Beleuchtung erfährt.The secondary reflector may have a cross-sectionally arcuate, double-arched, semicircular, parabolic or comparable design. In addition, one or more openings are conceivable to realize a light emission not only down, but also up out of the housing, so that the ceiling undergoes illumination.

Da sich mit Hilfe des Primärreflektors letztlich die beiden hauptsächlich abgestrahlten Strahlkegel und ihr Winkel zueinander definieren lassen, schlägt die Erfindung weiter vor, den Primärreflektor austauschbar und variabel zu gestalten. Hierdurch kann unterschiedlichen Anforderungen Rechnung getragen werden. Denn im einfachsten Fall ist der Primärreflektor als im Querschnitt im Wesentlichen V-förmiges und gegebenenfalls beschichtetes Blech ausgebildet, welches beispielsweise an Stirnblechen des Gehäuses gehalten wird, so dass der Austausch einfach und schnell gelingt. Ebenso kann der Primärreflektor auch an einem optionalen Blendraster befestigt werden, was den Austausch nochmals vereinfacht.Since it is ultimately possible to define the two mainly radiated beam cones and their angle to one another with the aid of the primary reflector, the invention also proposes to make the primary reflector interchangeable and variable. As a result, different requirements can be taken into account. For in the simplest case, the primary reflector is designed as a cross-sectionally substantially V-shaped and optionally coated sheet, which is held, for example, on end plates of the housing, so that the exchange is easy and quick. Likewise, the primary reflector can also be attached to an optional blind grid, which further simplifies the exchange.

Im Folgenden wird die Erfindung anhand einer lediglich ein Ausführungsbeispiel darstellenden Zeichnung näher erläutert; es zeigen:

Fig.1a und 1b
die erfindungsgemäße Beleuchtungseinrichtung perspektivisch und im schematischen Querschnitt in einer ersten Variante und
Fig. 2a und 2b
die Beleuchtungseinrichtung perspektivisch und im schematischen Schnitt in einer zweiten Ausgestaltung.
In the following the invention will be explained in more detail with reference to a drawing showing only one exemplary embodiment; show it:
1a and 1b
the illumination device according to the invention in perspective and in schematic cross-section in a first variant and
Fig. 2a and 2b
the illumination device in perspective and in schematic section in a second embodiment.

In den Figuren ist eine Beleuchtungseinrichtung dargestellt, die im Rahmen des Beispiels und nicht einschränkend als Deckeneinbau-Leuchte ausgeführt ist. Zu diesem Zweck besitzt die Beleuchtungseinrichtung ein Gehäuse 1, welches mit optionalen kopfseitigen Federschenkeln 2 ausgerüstet ist, die in nicht gezeigte Nuten in einer Deckenkonstruktion eingreifen. In dem Gehäuse 1 ist ein Leuchtmittel 3 angeordnet, bei dem es sich um eine Leuchtröhre bzw. Leuchtstoffröhre auf Neonbasis handeln. Alternativ könnte auch eine Lichtleiste mit LED's zum Einsatz kommen.In the figures, a lighting device is shown, which is designed in the context of the example and not restrictive as recessed ceiling light. For this purpose, the lighting device has a housing 1, which is equipped with optional head-side spring legs 2, which engage in not shown grooves in a ceiling construction. In the housing 1, a lighting means 3 is arranged, which act in neon-based fluorescent tube or neon tube. Alternatively, a light bar with LEDs could be used.

Ein Reflektor 4, 5 sorgt dafür, dass das von dem stabförmigen Leuchtmittel 3 im Querschnitt radial abgestrahlte (weiße) Licht eine gewünschte Ablenkung erfährt. Dazu ist der Reflektor 4, 5 zweiteilig mit Primärreflektor 4 und Sekundärreflektor 5 aufgebaut. Beide Reflektoren 4, 5 liegen sich mit Bezug zum größtenteils dazwischen angeordnetem Leuchtmittel 3 gegenüber. Der Primärreflektor 4 ist austauschbar gestaltet und wird im Rahmen der Variante nach den Fig. 1 a, 1b mit jeweiligen Querschlitzen auf ein Blendraster R aufgeschoben und gehalten. Tatsächlich tauchen einzelne Lamellen dieses Blendrasters R in die jeweiligen Querschlitze ein, wobei die hierdurch aufgebauten Reibungskräfte den Primärreflektor 4 in der gewünschten Position halten.A reflector 4, 5 ensures that the (white) light radiated radially in radial cross section by the rod-shaped luminous means 3 experiences a desired deflection. For this purpose, the reflector 4, 5 is constructed in two parts with primary reflector 4 and secondary reflector 5. Both reflectors 4, 5 face each other with respect to the largely arranged therebetween bulbs 3. The primary reflector 4 is designed to be interchangeable and is in the context of the variant of FIGS. 1 a, 1 b pushed and held with respective transverse slots on a blind raster R. In fact, individual lamellae of this blend screen R dip into the respective transverse slots, the frictional forces built up thereby keeping the primary reflector 4 in the desired position.

Diese wird letztlich durch die Tiefe der Querschlitze vorgegeben, welche festlegt, wie weit der Primärreflektor 4 auf das Blendraster R bzw. die jeweiligen Lamellen aufgeschoben werden kann (vgl. Fig. 1b). Durch diese Maßnahme wird ein Maß M definiert, welches ausdrückt, wie weit zugehörige Reflektorschenkel 4a, 4b des Primärreflektors 4 in Vertikalrichtung V bis zu einem Seitenrand des Sekundärreflektors 5 reichen, wie nachfolgend noch im Detail erläutert wird. Jedenfalls gewährleistet diese Ausgestaltung eine problemlose Nachrüstung vorhandener Beleuchtungseinrichtungen mit lediglich Sekundärreflektor 5 durch Anbringung des zusätzlichen Primärreflektors 4.This is ultimately determined by the depth of the transverse slots, which determines how far the primary reflector 4 can be slid onto the blind raster R or the respective slats (cf., FIG. 1b). By this measure, a measure M is defined, which expresses how far associated reflector legs 4a, 4b of the primary reflector 4 in the vertical direction V extend to a side edge of the secondary reflector 5, as will be explained in detail below. In any case, this embodiment ensures a problem-free retrofitting of existing lighting devices with only secondary reflector 5 by attaching the additional primary reflector. 4

Man erkennt, dass der Primärreflektor 4 in Aufsicht auf die Beleuchtungseinrichtung (Pfeil A in Fig. 1b) das Leuchtmittel 3 abdeckt, so dass die an dieser Stelle realisierte Leuchtstoffröhre 3 von unten her nicht gesehen werden kann, wenn die Beleuchtungseinrichtung in die Decke eingebaut ist. Gleiches gilt, wenn die Beleuchtungseinrichtung als Hängeleuchte ausgeführt ist. Ebenso dann, wenn die Beleuchtungseinrichtung als Wandbeleuchtung Verwendung findet. Beide Reflektoren 4, 5 sind mit zueinander weisenden konvexen Flächen F ausgerüstet.It can be seen that the primary reflector 4 covers the illuminant 3 in plan view of the illumination device (arrow A in FIG. 1b), so that the fluorescent tube 3 realized at this point can not be seen from below when the illumination device is installed in the ceiling , The same applies if the lighting device is designed as a pendant lamp. Likewise, when the lighting device is used as wall lighting use. Both reflectors 4, 5 are equipped with mutually facing convex surfaces F.

Die beiden Reflektoren 4, 5 umschließen das Leuchtmittel 3 unter Berücksichtigung von jeweils seitlichen Freibereichen 6 nahezu vollständig. Durch diese Freibereiche 6 kann das vom Leuchtmittel 3 ausgehende Licht direkt das Gehäuse 1 verlassen. Hierdurch werden jeweils zwei direkt abstrahlende Lichtkegel 7, 8 definiert, die in den Fig. 1 b und 2b durchgezogen angedeutet sind. Im Rahmen des Ausführungsbeispiels schließen diese beiden Lichtkegel 7, 8 einen stumpfen bzw. nahezu rechten Winkel α ein, innerhalb dessen keine direkte Strahlung abgegeben wird. Der von den beiden Lichtkegeln 7, 8 überstrichene Bereich (Winkel β) bemisst sich zu ca. 160°. Folgerichtig gehören zu den beiden Lichtkegeln 7, 8 Öffnungswinkel γ von jeweils ca. 35° bis 40°, was jedoch nicht zwingend ist.The two reflectors 4, 5 enclose the illuminant 3 almost completely taking into account lateral free areas 6. Through these free areas 6, the light emanating from the light source 3 can leave the housing 1 directly. As a result, two directly emitting light cone 7, 8 are defined in each case, which are indicated by solid lines in Figs. 1 b and 2b. In the context of the exemplary embodiment, these two light cones 7, 8 form an obtuse or almost right angle α within which no direct radiation is emitted. The area swept by the two light cones 7, 8 (angle β) is approximately 160 °. Consequently, the two light cones 7, 8 include opening angles γ of approximately 35 ° to 40 °, which is not mandatory, however.

Die Beleuchtungseinrichtung wird im Allgemeinen im Vergleich zu lediglich angedeuteten beidseitigen Regalen 9, 10 oberhalb eines damit beleuchteten Ganges so angeordnet, dass die jeweiligen Regale 9, 10 vom Boden bis zum Kopf hauptsächlich mit Hilfe des direkt abgestrahlten Lichtes von den betreffenden Lichtkegeln 7, 8 beleuchtet werden. Dagegen erfährt der Bodenbereich nur eine praktisch indirekte Beleuchtung, indem vom Primärreflektor 4 auf den Sekundärreflektor 5 reflektierte Strahlung nahezu vertikal den Sekundärreflektor 5 verlässt und hier für die gewünschten Lichtverhältnisse sorgt (vgl. die Darstellung in Fig. 2b). Aufgrund dieser mehrfachen Reflexion ist jedoch hier mit einer geringfügig kleineren Lichtstärke im Vergleich zu den Lichtkegeln 7, 8 zu rechnen, was jedoch wegen der im Vergleich zu der seitlich angestrahlten Fläche der Regale 9 und 10 kleineren Bodenfläche, die ausgeleuchtet werden muss, praktisch nicht ins Gewicht fällt.The illumination device is generally arranged in comparison with merely indicated bilateral shelves 9, 10 above a corridor illuminated therewith such that the respective shelves 9, 10 are illuminated from the floor to the head mainly by means of the directly emitted light from the respective light cones 7, 8 become. In contrast, the floor area experiences only a practically indirect illumination by radiation reflected from the primary reflector 4 to the secondary reflector 5 almost vertically leaves the secondary reflector 5 and here provides the desired lighting conditions (see the illustration in Fig. 2b). Due to this multiple reflection, however, a slightly smaller light intensity compared to the light cones 7, 8 is to be expected here, which, however, is virtually impossible because of the smaller area compared to the laterally illuminated surface of the shelves 9 and 10, which must be illuminated Weight drops.

Insgesamt entsteht ein gleichförmiger und gewünschter Beleuchtungseindruck mit einer Betonung der beidseitigen Regale 9, 10. Dabei wird der Boden zwischen den beiden Regalen 9, 10 ergänzend durch Licht bestrahlt, welches von in den beidseitigen Regalen 9, 10 befindlicher Ware reflektiert wird. Es ist auch möglich, dass der Boden nur hierdurch eine Bestrahlung erfährt und nicht zusätzlich noch durch die skizzierte Mehrfachreflektion.Overall, a uniform and desired lighting impression with an emphasis on the two-sided shelves 9, 10. The floor between the two shelves 9, 10 is additionally irradiated by light, which is reflected by in the two-sided shelves 9, 10 goods. It is also possible that the ground only undergoes radiation through this and not additionally by the multiple reflection outlined.

Man erkennt, dass der Primärreflektor 4 und der Sekundärreflektor 5 spiegelsymmetrisch im Vergleich zu einer Längssymmetrieebene S des Gehäuses 1 und folglich der Beleuchtungseinrichtung im Ganzen ausgebildet sind. Auf dieser Längssymmetrieebene S befindet sich auch das Leuchtmittel 3.It can be seen that the primary reflector 4 and the secondary reflector 5 are mirror-symmetrical in comparison to a longitudinal plane of symmetry S of the housing 1 and consequently of the illumination device as a whole. On this Längssymmetrieebene S is also the bulb 3.

Der Primärreflektor 4 ist größtenteils V-förmig bzw. dreieckförmig mit Reflektorschenkeln 4a, 4b ausgeführt, die sich in einer Dreieckspitze bzw. V-Spitze 11 schneiden, die dem Leuchtmittel 3 am nächsten kommt. Dabei kann diese Dreieckspitze bzw. V-Spitze 11 auch abgeflacht ausgeführt sein, wie dies in der Fig. 2b zu erkennen ist und hier über eine Abflachung 12 verfügen. Die Abflachung 12 ist im Rahmen des Ausführungsbeispiels horizontal angeordnet und besitzt eine Länge, die im Wesentlichen dem Radius des Leuchtmittels 3 im Querschnitt entspricht, was jedoch nicht zwingend ist.The primary reflector 4 is mostly V-shaped or triangular with reflector legs 4a, 4b executed, which intersect in a triangle tip or V-tip 11, which comes closest to the light source 3. It can do this Triangle tip or V-tip 11 also be executed flattened, as can be seen in Fig. 2b and here have a flat 12. The flattening 12 is arranged horizontally in the embodiment and has a length which substantially corresponds to the radius of the luminous means 3 in cross section, but this is not mandatory.

Die Reflektorschenkel 4a, 4b des Primärreflektors 4 reichen in Vertikalrichtung V um ein vorgegebenes Maß M bis unterhalb des Seitenrandes des Sekundärreflektors 5, so dass ein seitlicher Lichtaustrittshorizontalspalt in Gestalt einer senkrechten Komponente 6a des seitlichen Freibereiches 6 vorliegt. Daneben mag noch ein Lichtaustrittsvertikalspalt 6b als horizontale Komponente des seitlichen Freibereiches 6 realisiert sein (vgl. Fig. 1b). Dieser erklärt sich dadurch, dass die Reflektorschenkel 4a, 4b ergänzend in Horizontalrichtung H fußseitig einen vorgegebenen Abstand B zum Seitenrand des Sekundärreflektors 5 aufweisen. Grundsätzlich kann auch nur mit einem Lichtaustrittsvertikalspalt 6b entsprechend der Variante nach Fig. 2b gearbeitet werden, so dass der seitliche Freibereich 6 an dieser Stelle nicht über einen Lichtaustrittshorizontalspalt 6a verfügt.The reflector legs 4a, 4b of the primary reflector 4 extend in the vertical direction V by a predetermined amount M to below the side edge of the secondary reflector 5, so that a lateral light exit horizontal gap in the form of a vertical component 6a of the lateral free area 6 is present. In addition, a light exit vertical gap 6b may also be realized as a horizontal component of the lateral free area 6 (cf., FIG. 1b). This is explained by the fact that the reflector legs 4a, 4b additionally in the horizontal direction H foot side have a predetermined distance B to the side edge of the secondary reflector 5. In principle, it is also possible to work only with a light exit vertical gap 6b corresponding to the variant according to FIG. 2b so that the lateral free area 6 does not have a light exit horizontal gap 6a at this point.

Der Sekundärreflektor 5 besitzt im Rahmen des Ausführungsbeispiels nach Fig. 1 b im Querschnitt eine angenähert halbkreisförmige Gestalt, wobei das Leuchtmittel 3 größtenteils im Zentrum dieses Halbkreises bzw. dessen könvexen Flächen F angeordnet ist. Daneben mag auch eine doppelt-bogenförmige Ausführung nach der Fig. 2b realisiert werden. Auch andere Gestaltungen, wie zum Beispiel rein bogenförmig oder parabol sind denkbar und werden vom Erfindungsgedanken umfasst.In the context of the exemplary embodiment according to FIG. 1 b, the secondary reflector 5 has an approximately semicircular shape in cross-section, with the illuminant 3 largely being arranged in the center of this semicircle or its convex surfaces F. In addition, a double-arcuate embodiment according to FIG. 2b may also be realized. Other designs, such as purely arched or parabolic are conceivable and are encompassed by the spirit of the invention.

Dadurch, dass das Leuchtmittel 3 überwiegend zentrumsnah im Vergleich zum Sekundärreflektor 5 angeordnet ist, wird das reflektierte Licht hauptsächlich vertikal aus dem Gehäuse 1 abgestrahlt, während das nicht reflektierte direkt austretende Licht - wie beschrieben - größtenteils schräg verlaufend das Gehäuse 1 verlässt.Because the luminous means 3 is arranged predominantly close to the center in comparison to the secondary reflector 5, the reflected light is radiated mainly vertically out of the housing 1, while the non-reflected directly emerging light - as described - largely obliquely leaves the housing 1.

Bei dem Leuchtmittel 3 handelt es sich um eine Leuchtstoffröhre 3, wenngleich selbstverständlich auch eine Lichtleiste mit einer Vielzahl an LED's realisiert werden kann, die vorteilhaft auf der Längssymmetrieebene S und/oder beidseitig hiervon angeordnet sein können. Die konvexen Flächen F des Primärreflektors 4 sind dabei entsprechend der angedeuteten Strahlführung nach Fig. 2b so angedeutet, dass das auf sie treffende Licht hauptsächlich auf den Sekundärreflektor 5 trifft. Das wird erreicht, indem das Zentrum des Leuchtmittels oberhalb der V-Spitze 11 bzw. mittig zur Abflachung 12 platziert wird und sich die Reflektorschenkel 4a, 4b in senkrechter Projektion des Leuchtmittels 3 auf den Primärreflektor 4 zunehmend öffnen.The luminous means 3 is a fluorescent tube 3, although of course it is also possible to realize a light strip with a multiplicity of LEDs, which can advantageously be arranged on the longitudinal symmetry plane S and / or on both sides thereof. The convex surfaces F of the primary reflector 4 are indicated in accordance with the indicated beam guidance according to FIG. 2 b in such a way that the light impinging on them mainly strikes the secondary reflector 5. This is achieved by placing the center of the luminous means above the V-tip 11 or in the middle of the flattening 12 and the reflector legs 4a, 4b increasingly open in vertical projection of the luminous means 3 onto the primary reflector 4.

Claims (9)

  1. Illumination device, in particular a ceiling light, comprising a housing (1) and a lighting means (3) arranged therein, and comprising a reflector (4, 5) for the lighting means (3), wherein
    - the reflector (4, 5) is composed of at least two parts, with a primary reflector (4) and a secondary reflector (5), wherein furthermore
    - the two reflectors (4, 5) lie opposite one another with respect to the lighting means (3) arranged therebetween, and wherein
    - a louver (R) for the lighting means (3) bears the primary reflector (4),
    characterised in that
    the primary reflector (4) is designed in an exchangeable manner and is pushed onto the louver (R) and held thereon by means of respective transverse slots.
  2. Illumination device according to claim 1, characterised in that, looking towards the housing (1), the primary reflector (4) covers the lighting means (3).
  3. Illumination device according to one of claims 1 to 2, characterised in that the primary reflector (4) and the secondary reflector (5) enclose the lighting means (3) apart from lateral free areas (6) in each case.
  4. Illumination device according to one of claims 1 to 3, characterised in that the primary reflector (4) is largely V-shaped, with reflector legs (4a, 4b) which intersect at a V-tip (11) close to the lighting means (3).
  5. Illumination device according to one of claims 1 to 4, characterised in that the reflector legs (4a, 4b) of the primary reflector (4) extend in the vertical direction (V) until they are a predefined distance (M) below the lateral edge of the secondary reflector (5), so that a lateral light-emitting horizontal gap (6a) is defined in each case.
  6. Illumination device according to one of claims 1 to 5, characterised in that the lower ends of the reflector legs (4a, 4b) of the primary reflector (4) are at a predefined distance (B) in the horizontal direction (H) from the lateral edge of the secondary reflector (5), so as to define light-emitting vertical gaps (6b) in each case.
  7. Illumination device according to one of claims 1 to 6, characterised in that the secondary reflector (5) has a shape that is arched, double-arched, semi-circular, parabolic or the like in cross section.
  8. Illumination device according to one of claims 1 to 7, characterised in that the lighting means (3) is arranged predominantly close to the centre relative to the secondary reflector (5).
  9. Illumination device according to one of claims 1 to 8, characterised in that the lighting means (3) is designed as a rod-shaped fluorescent tube, for example based on neon, and/or an LED strip.
EP05010931A 2004-08-18 2005-05-20 Illumination device Active EP1628070B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SI200530067T SI1628070T1 (en) 2004-08-18 2005-05-20 Illumination device
CY20071101339T CY1106937T1 (en) 2004-08-18 2007-10-16 LIGHT BODY

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102004040130A DE102004040130A1 (en) 2004-08-18 2004-08-18 lighting device

Publications (3)

Publication Number Publication Date
EP1628070A2 EP1628070A2 (en) 2006-02-22
EP1628070A3 EP1628070A3 (en) 2006-09-20
EP1628070B1 true EP1628070B1 (en) 2007-07-18

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EP05010931A Active EP1628070B1 (en) 2004-08-18 2005-05-20 Illumination device

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EP (1) EP1628070B1 (en)
AT (1) ATE367555T1 (en)
AU (1) AU2005203135B2 (en)
CY (1) CY1106937T1 (en)
DE (2) DE102004040130A1 (en)
SI (1) SI1628070T1 (en)

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EP1985912B1 (en) * 2007-04-26 2017-06-07 Frowein EZH GmbH Operating light
EP2187113A1 (en) * 2008-11-18 2010-05-19 Toshiba Lighting & Technology Corporation Lighting device including translucent cover for diffusing light from light source
DE102008060874A1 (en) * 2008-12-09 2010-06-10 Manfred Grimm lamp
IT1396316B1 (en) * 2009-10-06 2012-11-16 Giovine Di PROJECTOR WITH WIDE SPREAD WITH PRELIMINARY LEDS SOURCES.
DE202009016793U1 (en) * 2009-12-11 2011-04-21 Zumtobel Lighting Gmbh Arrangement for emitting light
JP4786750B2 (en) * 2010-03-12 2011-10-05 シャープ株式会社 Lighting device
DE202011003062U1 (en) * 2011-02-22 2012-05-30 Ruco-Licht Gmbh lamp
EP2850358A1 (en) * 2012-05-17 2015-03-25 3M Innovative Properties Company Indirect luminaire
DE202012103452U1 (en) * 2012-09-11 2013-12-12 Zumtobel Lighting Gmbh Grid lamp with LED light sources
DE202012103840U1 (en) * 2012-10-08 2012-12-12 BÄ*RO GmbH & Co. KG reflector assembly
EP2743570A1 (en) * 2012-12-14 2014-06-18 Ansorg GmbH Electric light
DE202013104700U1 (en) 2013-10-18 2015-01-19 "Steinberg" Leuchtmittelwerke Gmbh Luminaire for illuminating areas for the presentation of goods
CN108302436B (en) * 2017-08-24 2023-11-03 华域视觉科技(上海)有限公司 Car light lighting device, car light assembly and car

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FR604343A (en) 1925-10-06 1926-05-03 Main Et Cie G Electric lighting fixture for public roads
US3009054A (en) 1957-06-21 1961-11-14 Prism Signs Inc Prismatic lighting fixture
DE1597992B2 (en) 1967-08-16 1976-10-21 Siemens AG, 1000 Berlin und 8000 München LONG EXTENDED LUMINAIRE FOR ONE OR MORE NON-ROD LIGHT SOURCES
AT354556B (en) * 1975-07-18 1979-01-10 Hoffmeister Leuchten Kg REFLECTOR ARRANGEMENT FOR AN ELECTRIC NARROW BEAM OR SPOT LUMINAIRE WITH A BULB HAVING A SOME POINT-SHAPED LIGHT SOURCE
DE19609262C2 (en) 1996-02-28 1999-10-14 Sill Franz Gmbh Ceiling light

Non-Patent Citations (1)

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Also Published As

Publication number Publication date
EP1628070A3 (en) 2006-09-20
CY1106937T1 (en) 2012-09-26
DE102004040130A1 (en) 2006-02-23
AU2005203135A1 (en) 2006-03-09
EP1628070A2 (en) 2006-02-22
DE502005001041D1 (en) 2007-08-30
ATE367555T1 (en) 2007-08-15
AU2005203135B2 (en) 2010-04-08
SI1628070T1 (en) 2007-12-31

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