EP0994294B1 - Lighting apparatus to be mounted to a first wall defining a light emitting window - Google Patents

Lighting apparatus to be mounted to a first wall defining a light emitting window Download PDF

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Publication number
EP0994294B1
EP0994294B1 EP99119819A EP99119819A EP0994294B1 EP 0994294 B1 EP0994294 B1 EP 0994294B1 EP 99119819 A EP99119819 A EP 99119819A EP 99119819 A EP99119819 A EP 99119819A EP 0994294 B1 EP0994294 B1 EP 0994294B1
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EP
European Patent Office
Prior art keywords
reflector
lighting fixture
fixture according
spot
wall
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.)
Expired - Lifetime
Application number
EP99119819A
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German (de)
French (fr)
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EP0994294A3 (en
EP0994294A2 (en
Inventor
Leonard Klose
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Erco Leuchten GmbH
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Erco Leuchten GmbH
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Publication date
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Priority to DK99119819T priority Critical patent/DK0994294T3/en
Publication of EP0994294A2 publication Critical patent/EP0994294A2/en
Publication of EP0994294A3 publication Critical patent/EP0994294A3/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
    • F21V7/04—Optical design
    • F21V7/09—Optical design with a combination of different curvatures
    • 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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/71—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks using a combination of separate elements interconnected by heat-conducting means, e.g. with heat pipes or thermally conductive bars between separate heat-sink elements
    • 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
    • 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
    • F21V13/04—Combinations of only two kinds of elements the elements being reflectors and refractors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/02—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages with provision for adjustment
    • 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
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/0005—Fastening of light sources or lamp holders of sources having contact pins, wires or blades, e.g. pinch sealed lamp
    • 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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • F21V29/76—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section
    • 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

Definitions

  • the invention relates to a lighting device for attachment to a first, a light exit plane defining wall, in particular at one Ceiling, as well as for uniform illumination of a large-scale and at an angle, in particular to a 90 ° angle, standing to the first wall second Wall, comprising a light source, in the field the first focus of a substantially ellipsoidal Reflector element is arranged, a Lens arrangement, one with respect to the light exit plane includes inclined lens, and a light exit opening, in the second focus of the Reflector element is arranged.
  • Such a lighting device is in the catalog of the applicant "luminaire program", issue 1998/99, on page 228 under the article number 81661 shown.
  • a light source one PAR 56 500 watt / 120 V lamp provided at one ceiling-mounted a room height of up to 12 m illuminates evenly. Larger room heights are with such a lighting device in principle no longer satisfactorily illuminable.
  • the high-voltage halogen lamp Spot reflector provided by the high-voltage halogen lamp partially surrounds.
  • the high-voltage halogen lamp is at the focal point of the parabolic spot reflector arranged.
  • the arrangement of the high-voltage halogen lamp allows such that its longitudinal axis is vertical to the central axis of the spot reflector, so under an angle between 0 and 45 ° to the Lichtaustrittsebene stands, the use of a high-voltage halogen lamp with a very big performance.
  • the Heat can namely in such a selected arrangement be directed outside the spot reflector, so that there is enough volume for cooling Available. It is crucial in the hit Arrangement of the high-voltage halogen lamp but also that now the light center of the light source is very concentrated in the region of the first focal point of the reflector element is placed. This can be a light pipe take place such that this focal point in the light exit opening of the lighting device, So in the light exit plane, concentrated is shown.
  • the lighting device according to the invention allows an excellent glare limitation, so Virtually glare-free, has good efficiency on and illuminates the wall absolutely evenly.
  • halogen bulbs As a light source, as for example from the above-mentioned catalog of Applicant on page 221, under the article number 81 533.
  • the halogen lamp is arranged so that their Longitudinal axis substantially perpendicular to the light exit plane stands.
  • wallwashers With such wallwashers, however, are only small wall surfaces, evenly illuminable up to 3 m at low room heights. These used halogen bulbs have maximum power from 150 W up.
  • the selected arrangement according to the invention has moreover the advantage that now a change of the lamp can be done easily can. Since the light exit opening is much larger than the used high-voltage halogen lamp, a user can use the lamp easily move through the light exit opening. At the The prior art was the replacement of a relatively large PAR Lamp more complicated because the light exit opening in relation to it was relatively small.
  • a lighting device is used Attachment to a first, defining a light exit plane Wall and for uniform illumination of a large and at an angle to the first wall standing second wall out.
  • a light source provided in the area a first focal point of an ellipsoidal reflector element is arranged.
  • a second focal point of the reflector element is located outside the light exit opening.
  • a lens assembly having a relative to the light exit plane inclined spreading lens is not apparent from this document.
  • a parabolic-shaped spot reflector within which a free-radiating High-voltage halogen lamp is arranged, the longitudinal axis of the Lamp substantially perpendicular to the central axis of the spot reflector is not apparent from this document.
  • the longitudinal axis of the Lamp in a plane parallel to the second wall. This allows spreading of the luminous flux such that a relatively wide wall area of the second wall evenly can be illuminated. For a majority along a line arranged lighting devices can therefore on advantageous way the individual distances the lighting devices from each other low to get voted.
  • the lamp base protrudes at least partially from the Spot reflector out. This allows for a special efficient cooling of the lamp because of the high Performance big heaters, especially in the area of the lamp base, occur. Because the lamp base at least partially protruding from the spot reflector, is immediately adjacent to the lamp base Free space available, the heat energy can record.
  • the invention is the spot reflector in the field of his Center flattened.
  • This is the spot reflector particularly advantageous to the position of the lamp adapted and can thus a particularly high efficiency, i.e. allow a maximum amount of light leakage.
  • the figures in the figures in their entirety with 10 designated lighting device is usually attached to a ceiling 11.
  • the lighting device 10 is intended to denote a in Fig. 1 with 12 Side wall to be illuminated evenly. in this connection these are in particular side walls of a Room with a height H between about 5 and 40 m.
  • Desired is a high efficiency of Luminaire, an absolutely uniform illumination of the Side wall 12 and a user 13 a nearly complete glare limitation or glare-free.
  • the lighting device comprises 10 essentially the following elements:
  • a Holding device 15 is arranged, which in principle any way a spot reflector 16 holds.
  • a free-radiating High-voltage halogen lamp 17 is arranged, whose Socket 18 partially through an opening 19 in the wall of the spot reflector 16 from the interior 20 of the Spot reflector 16 protrudes.
  • the longitudinal axis L of High-voltage halogen lamp 17 is thus under one right angle to the center axis M of the spot reflector 16.
  • the center axis M of the spot reflector 16 is with respect to a through the light exit opening 21st defined light exit plane E at an angle ⁇ inclined.
  • the longitudinal axis L of High-voltage halogen lamp 17 at an acute angle ⁇ (as shown in Fig. 2) with respect to the light exit plane E of the lighting device 10 is.
  • the angle ⁇ is dependent on the room height H to choose. In the embodiment shown in FIGS the angle ⁇ is about 17 °.
  • the angle ⁇ is about 6 °.
  • the parabolic-shaped spot reflector 16 has in Area of its light exit opening 22 a direction neutral, clear, hardly structured dispersion lens 23 on.
  • the scattering lens essentially serves a reduced amount of light on a like a Wallwasher scoop formed elipsoidförmiges To throw reflector element 24. That on his hollow side 25 mirrored reflector element 24 serves the upper portion 12a of the wall 12 soft and streak free illuminate.
  • the scattering lens 23 serves as it were as a link between the direct light component and the amount of scattered light.
  • the scattered light component is over the reflector element 24 in the upper wall area 12a thrown out.
  • the lighting device 10 emitted light
  • a direct light component one Light component is called, which is essentially either directly from the light source 17 without any Reflection through the light exit opening 21 of Lighting device 10 exits, as well as the one Proportion of light, only from the spot reflector 16 is reflected and then by the Light exit opening 21 emerges.
  • the scattered light component is called the light that comes from the high-voltage halogen lamp 17 coming from the scattered lens 23 and deflected is thrown onto the reflector element 24.
  • This Light can then from the reflector element 24 and of the mirrored hollow side 25 through the light exit opening 21 of the lighting device 10 ejected and especially the upper wall area 12a of the wall 12 to be illuminated.
  • the high-voltage halogen lamp 17 is arranged such that the light center of the high-voltage halogen lamp 17 in the region of an upper focal point (about at Pos. P1) of the reflector element 24 is located.
  • the Arrangement is made such that the lower, second focus P2 in the light exit opening 21 the lighting device, in particular in the light exit plane E, is located.
  • the high-voltage halogen lamp 17 is a essentially M-shaped coil, not shown arranged.
  • the arrangement of this filament can be For example, from the aforementioned catalog of Applicant, page 372 in the last column.
  • the actual light volume which is also called Highlighted light, is thus spatially very limited and thus focused around the first focus Pl of the reflector element 24 around.
  • the spot reflector 16 is relative to the reflector element 24 arranged such that the focal point of the parabolic spot reflector 16 with the first Focus P1 of the ellipsoidal reflector element 24 coincides. In an advantageous way is about it.
  • the spot reflector 16 in the region of its center Z flattened. This allows for a special high efficiency of the lighting device according to the invention.
  • a lens assembly 26 is provided which on the one hand can have an expansion lens 27, which essentially serves the exiting Light oval (with reference to FIG. 2 out of the plane of the paper) spread open to the widest possible wall area to illuminate, or the distance of several, along a line arranged lighting device 10 to keep each other low. on the other hand may be below the expansion lens 27, a darklight reflector assembly 28, the glare-free ensures, as in the direction of the wall 12 a high dimming takes place.
  • the base 18 of the high voltage halogen lamp 17 is releasably secured to a socket body 29, which in heat-conducting connection with a heat sink 30 stands.
  • the example of die-cast aluminum existing heatsink 30 can over a variety of Cooling fins 31 have. That's how it works even with high-performance high-voltage halogen lamps 17 with powers of 500 watts sufficient cooling to ensure.
  • the high-voltage halogen lamp is 17 arranged such that the longitudinal axis L of the high-voltage halogen lamp 17 in a plane parallel to the second Wall 12 is located. Accordingly, correct drawings would have to in a sectional view according to FIG. 2 a spot reflector 16 show that in the field of illustrated opening 19 throughout (ie without opening) would be formed as well as a high-voltage halogen lamp 17 in a cross-sectional view across her Longitudinal axis L, as shown in Fig. 3.
  • a light source is advantageously a High-voltage halogen lamp 17 of type QT 15, 500 watts, 230 V or QT 22, 500 watts, 230 V used, so that be accessed in a widely used lamp type can.
  • the spot reflector 16 itself can advantageously from several circumferentially adjacent Segments exist.

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

Abstract

The light fitting (10) has a HV halogen lamp (17) enclosed by a spot reflector (19), positioned at one focal point (P1) of a elliptical reflector (24), a light output opening (21) positioned at the other focal point (P2) of the elliptical reflector and a lens (27) extending at an angle to the light output opening.

Description

Die Erfindung betrifft eine Beleuchtungsvorrichtung zur Anbringung an einer ersten, eine Lichtaustrittsebene definierenden Wand, insbesondere an einer Decke, sowie zur gleichmäßigen Ausleuchtung einer großflächigen und unter einem Winkel, insbesondere an einem 90°-Winkel, zu der ersten Wand stehenden zweiten Wand, umfassend eine Lichtquelle, die im Bereich des ersten Brennpunktes eines im wesentlichen elipsoidförmigen Reflektorelementes angeordnet ist, eine Linsenanordnung, die eine bezüglich der Lichtaustrittsebene geneigte Linse umfaßt, und eine Lichtaustrittsöffnung, in der der zweite Brennpunkt des Reflektorelementes angeordnet ist.The invention relates to a lighting device for attachment to a first, a light exit plane defining wall, in particular at one Ceiling, as well as for uniform illumination of a large-scale and at an angle, in particular to a 90 ° angle, standing to the first wall second Wall, comprising a light source, in the field the first focus of a substantially ellipsoidal Reflector element is arranged, a Lens arrangement, one with respect to the light exit plane includes inclined lens, and a light exit opening, in the second focus of the Reflector element is arranged.

Eine derartige Beleuchtungsvorrichtung ist in dem Katalog der Anmelderin "Leuchtenprogramm", Ausgabe 1998/99, auf Seite 228 unter der Artikelnummer 81661 dargestellt. Hier ist als Lichtquelle eine PAR 56 500 Watt/120 V Lampe vorgesehen, die bei einer deckenseitigen Anbringung eine Raumhöhe von bis zu 12 m gleichmäßig ausleuchtet. Größere Raumhöhen sind mit einer derartigen Beleuchtungsvorrichtung prinzipiell nicht mehr zufriedenstellend ausleuchtbar.Such a lighting device is in the catalog of the applicant "luminaire program", issue 1998/99, on page 228 under the article number 81661 shown. Here is as a light source one PAR 56 500 watt / 120 V lamp provided at one ceiling-mounted a room height of up to 12 m illuminates evenly. Larger room heights are with such a lighting device in principle no longer satisfactorily illuminable.

Es ist Aufgabe der Erfindung, eine Beleuchtungsvorrichtung gemäß dem Oberbegriff des Anspruchs 1 zur Verfügung zu stellen, die eine gleichmäßige Ausleuchtung größerer Wandflächen, insbesondere bei Raumhöhen über 12 m ermöglicht.It is an object of the invention to provide a lighting device according to the preamble of claim 1 to To provide a uniform illumination larger wall surfaces, especially at room heights over 12 m.

Die Erfindung löst diese Aufgabe mit den Merkmalen des Anspruchs 1, insbesondere mit denen des Kennzeichenteils, und ist demgemäß dadurch gekennzeichnet,

  • daß die Lichtquelle eine freistrahlende Hochvolt-Halogen Lampe ist, die innerhalb eines parabolförmigen Spotreflektors angeordnet ist, wobei die Längsachse der Lampe im wesentlichen senkrecht zu der Mittelachse des Spotreflektors steht,
  • daß der erste Brennpunkt des Reflektorelementes mit dem Brennpunkt des Spotreflektors zusammenfällt, und
  • daß der Spotreflektor eine von der Lampe zumindest teilweise durchgriffene Öffnung aufweist.
The invention achieves this object with the features of claim 1, in particular with those of the characterizing part, and is accordingly characterized
  • that the light source is a free-radiating high-voltage halogen lamp which is arranged within a parabolic spot reflector, wherein the longitudinal axis of the lamp is substantially perpendicular to the central axis of the spot reflector,
  • that the first focal point of the reflector element coincides with the focal point of the spot reflector, and
  • the spot reflector has an opening which is at least partially penetrated by the lamp.

Das Prinzip der Erfindung besteht zunächst darin, anstelle einer PAR-Lampe als Lichtquelle eine freistrahlende Hochvolt-Halogenlampe zu verwenden. Dies ist wesentlich, da PAR-Lampen nie absolut schlierenfrei sind, wodurch die gleichmäßige Ausleuchtung einer Wand nur durch erhöhte Ausblendung in der Skulpturenlinse erreichbar ist. The principle of the invention initially in it, instead of a PAR lamp as a light source one to use free-radiating high-voltage halogen lamp. This is essential because PAR lamps are never absolute are streak-free, ensuring uniform illumination a wall only by increased suppression in the sculpture lens is reachable.

Weiterhin ist für die Hochvolt-Halogenlampe ein Spotreflektor vorgesehen, der die Hochvolt-Halogenlampe teilweise umgibt. Die Hochvolt-Halogenlampe ist dabei im Brennpunkt des parabolförmigen Spotreflektors angeordnet.Furthermore, for the high-voltage halogen lamp Spot reflector provided by the high-voltage halogen lamp partially surrounds. The high-voltage halogen lamp is at the focal point of the parabolic spot reflector arranged.

Andererseits ermöglicht die Anordnung der Hochvolt-Halogenlampe derart, daß deren Längsachse senkrecht zur Mittelachse des Spotreflektors, also unter einem Winkel zwischen 0 und 45° zu der Lichtaustrittsebene steht, die Verwendung einer Hochvolt-Halogenlampe mit einer sehr großen Leistung. Die Wärme kann nämlich bei einer derart gewählten Anordnung nach außerhalb des Spotreflektors geleitet werden, so daß dort genügend Volumen zur Kühlung zur Verfügung steht. Entscheidend ist bei der getroffenen Anordnung der Hochvolt-Halogenlampe aber auch, daß nun der Lichtschwerpunkt der Lichtquelle sehr konzentriert im Bereich des ersten Brennpunktes des Reflektorelementes plaziert ist. Damit kann eine Lichtleitung derart stattfinden, daß dieser Lichtschwerpunkt in der Lichtaustrittsöffnung der Beleuchtungsvorrichtung, also in der Lichtaustrittsebene, konzentriert abgebildet wird.On the other hand, the arrangement of the high-voltage halogen lamp allows such that its longitudinal axis is vertical to the central axis of the spot reflector, so under an angle between 0 and 45 ° to the Lichtaustrittsebene stands, the use of a high-voltage halogen lamp with a very big performance. The Heat can namely in such a selected arrangement be directed outside the spot reflector, so that there is enough volume for cooling Available. It is crucial in the hit Arrangement of the high-voltage halogen lamp but also that now the light center of the light source is very concentrated in the region of the first focal point of the reflector element is placed. This can be a light pipe take place such that this focal point in the light exit opening of the lighting device, So in the light exit plane, concentrated is shown.

Die erfindungsgemäße Beleuchtungsvorrichtung ermöglicht eine hervorragende Blendbegrenzung, also nahezu Blendfreiheit, weist einen guten Wirkungsgrad auf und leuchtet die Wand absolut gleichmäßig aus.The lighting device according to the invention allows an excellent glare limitation, so Virtually glare-free, has good efficiency on and illuminates the wall absolutely evenly.

Zwar ist es im Stand der Technik bereits bekannt, bei als Wandflutern verwendeten Beleuchtungsvorrichtungen Halogenglühlampen als Lichtquelle einzusetzen, wie dies beispielsweise aus dem oben genannten Katalog der Anmelderin auf Seite 221 unter der Artikelnummer 81 533 hervorgeht. Hier ist jedoch die Halogenlampe so angeordnet, daß ihre Längsachse im wesentlichen senkrecht zu der Lichtaustrittsebene steht. Mit derartigen Wandflutern sind jedoch nur kleine Wandflächen, bei geringen Raumhöhen bis 3 m gleichmäßig ausleuchtbar. Die dort verwendeten Halogen-Glühlampen weisen eine maximale Leistung von 150 W auf.Although it is already in the art known in lighting devices used as wallwashers To use halogen bulbs as a light source, as for example from the above-mentioned catalog of Applicant on page 221, under the article number 81 533. Here, however, the halogen lamp is arranged so that their Longitudinal axis substantially perpendicular to the light exit plane stands. With such wallwashers, however, are only small wall surfaces, evenly illuminable up to 3 m at low room heights. These used halogen bulbs have maximum power from 150 W up.

Die gewählte erfindungsgemäße Anordnung hat darüber hinaus den Vorteil, daß nunmehr ein Wechsel der Lampe mühelos erfolgen kann. Da die Lichtaustrittsöffnung wesentlich größer ist als die verwendete Hochvolt-Halogenlampe, kann ein Benutzer die Lampe problemlos durch die Lichtaustrittsöffnung hindurch bewegen. Beim Stand der Technik war das Auswechseln einer relativ großen PAR Lampe komplizierter, da die Lichtaustrittsöffnung im Verhältnis dazu relativ klein war.The selected arrangement according to the invention has moreover the advantage that now a change of the lamp can be done easily can. Since the light exit opening is much larger than the used high-voltage halogen lamp, a user can use the lamp easily move through the light exit opening. At the The prior art was the replacement of a relatively large PAR Lamp more complicated because the light exit opening in relation to it was relatively small.

Aus der US-A-3 643 089 geht eine Beleuchtungsvorrichtung zur Anbringung an einer ersten, eine Lichtaustrittsebene definierenden Wand sowie zur gleichmäßigen Ausleuchtung einer großflächigen und unter einem Winkel zu der ersten Wand stehenden zweiten Wand hervor. Hier ist bereits eine Lichtquelle vorgesehen, die im Bereich eines ersten Brennpunktes eines ellipsoidförmigen Reflektorelementes angeordnet ist. Ein zweiter Brennpunkt des Reflektorelementes befindet sich außerhalb der Lichtaustrittsöffnung.From US-A-3 643 089 a lighting device is used Attachment to a first, defining a light exit plane Wall and for uniform illumination of a large and at an angle to the first wall standing second wall out. Here is already a light source provided in the area a first focal point of an ellipsoidal reflector element is arranged. A second focal point of the reflector element is located outside the light exit opening.

Eine Linsenanordnung mit einer bezüglich der Lichtaustrittsebene geneigten Spreizlinse geht aus diesem Dokument nicht hervor. Auch ein parabolförmiger Spot-Reflektor, innerhalb dem eine freistrahlende Hochvolt-Halogenlampe angeordnet ist, wobei die Längsachse der Lampe im wesentlichen senkrecht zu der Mittelachse des Spot-Reflektors steht, ist dieser Druckschrift nicht zu entnehmen. A lens assembly having a relative to the light exit plane inclined spreading lens is not apparent from this document. Also a parabolic-shaped spot reflector, within which a free-radiating High-voltage halogen lamp is arranged, the longitudinal axis of the Lamp substantially perpendicular to the central axis of the spot reflector is not apparent from this document.

In weiterer Ausgestaltung der Erfindung liegt die Längsachse der Lampe in einer zu der zweiten Wand parallelen Ebene. Dies ermöglicht ein Aufspreizen des Lichtstroms derart, daß ein verhältnismäßig breiter Wandbereich der zweiten Wand gleichmäßig ausgeleuchtet werden kann. Für eine Mehrzahl entlang einer Linie angeordneter Beleuchtungsvorrichtungen können daher auf vorteilhafte Weise die einzelnen Abstände der Beleuchtungsvorrichtungen voneinander gering gewählt werden.In a further embodiment of the invention, the longitudinal axis of the Lamp in a plane parallel to the second wall. This allows spreading of the luminous flux such that a relatively wide wall area of the second wall evenly can be illuminated. For a majority along a line arranged lighting devices can therefore on advantageous way the individual distances the lighting devices from each other low to get voted.

Gemäß einer weiteren Ausgestaltung der Erfindung ragt der Lampensockel zumindest teilweise aus dem Spotreflektor heraus. Dies ermöglicht eine besonders effiziente Kühlung der Lampe, da aufgrund der hohen Leistung große Aufheizungen, insbesondere im Bereich des Lampensockels, auftreten. Dadurch daß der Lampensockel zumindest teilweise aus dem Spotreflektor herausragt, steht unmittelbar benachbart dem Lampensockel Freiraum zur Verfügung, der die Wärmeenergie aufnehmen kann.According to a further embodiment of the invention the lamp base protrudes at least partially from the Spot reflector out. This allows for a special efficient cooling of the lamp because of the high Performance big heaters, especially in the area of the lamp base, occur. Because the lamp base at least partially protruding from the spot reflector, is immediately adjacent to the lamp base Free space available, the heat energy can record.

Gemäß einer weiteren vorteilhaften Ausgestaltung der Erfindung ist der Spotreflektor im Bereich seines Zentrums abgeplattet. Auf diese Weise ist der Spotreflektor besonders vorteilhaft an die Lage der Lampe angepaßt und kann so einen besonders hohen Wirkungsgrad, d.h. eine maximal austretende Lichtmenge ermöglichen.According to a further advantageous embodiment the invention is the spot reflector in the field of his Center flattened. This is the spot reflector particularly advantageous to the position of the lamp adapted and can thus a particularly high efficiency, i.e. allow a maximum amount of light leakage.

In den Zeichnungen ist ein bevorzugtes Ausführungsbeispiel der Erfindung beschrieben. Darin zeigen

  • Fig. 1 in schematischer Seitenansicht den Bereich eines Raumes, in dessen Deckenwand eine erfindungsgemäße Beleuchtungsvorrichtung angeordnet ist, die eine hohe Seitenwand des Raumes gleichmäßig ausleuchtet,
  • Fig. 2 in teilgeschnittener Ansicht die Beleuchtungsvorrichtung aus Fig. 1 in Detaildarstellung, und
  • Fig. 3 in teilgeschnittener Ansicht eine Hälfte der um 90° um ihre Längsachse gedrehte Beleuchtungsvorrichtung aus Fig. 2.
    • In the drawings, a preferred embodiment of the invention is described. Show in it
  • 1 is a schematic side view of the area of a room in the ceiling wall of a lighting device according to the invention is arranged, which evenly illuminates a high side wall of the room,
  • Fig. 2 in a partially sectioned view of the lighting device of Fig. 1 in detail, and
  • 3 is a partially sectioned view of a half of the rotated by 90 ° about its longitudinal axis lighting device of FIG. 2nd

    • Die in den Fig. in ihrer Gesamtheit mit 10 bezeichnete Beleuchtungsvorrichtung wird in der Regel an einer Decke 11 befestigt. Mit der Beleuchtungsvorrichtung 10 soll eine in Fig. 1 mit 12 bezeichnete Seitenwand gleichmäßig ausgeleuchtet werden. Hierbei handelt es sich insbesondere um Seitenwände eines Raumes mit einer Höhe H etwa zwischen 5 und 40 m.The figures in the figures in their entirety with 10 designated lighting device is usually attached to a ceiling 11. With the lighting device 10 is intended to denote a in Fig. 1 with 12 Side wall to be illuminated evenly. in this connection these are in particular side walls of a Room with a height H between about 5 and 40 m.

    Gewünscht ist ein hoher Wirkungsgrad der Leuchte, eine absolut gleichmäßige Ausleuchtung der Seitenwand 12 sowie für einen Benutzer 13 eine nahezu vollständige Blendbegrenzung oder Blendfreiheit.Desired is a high efficiency of Luminaire, an absolutely uniform illumination of the Side wall 12 and a user 13 a nearly complete glare limitation or glare-free.

    Gemäß Fig. 2 umfaßt die Beleuchtungsvorrichtung 10 im wesentlichen folgende Elemente:According to Fig. 2, the lighting device comprises 10 essentially the following elements:

    Innerhalb eines Gehäuses 14, welches beispielsweise auch ein Betoneinbaugehäuse sein kann, ist eine Haltevorrichtung 15 angeordnet, welche auf prinzipiell beliebige Weise einen Spotreflektor 16 hält. Innerhalb des Spotreflektors 16 ist eine freistrahlende Hochvolt-Halogenlampe 17 angeordnet, deren Sockel 18 teilweise durch eine Öffnung 19 in der Wand des Spotreflektors 16 aus dem Innenraum 20 des Spotreflektors 16 herausragt. Die Längsachse L der Hochvolt-Halogenlampe 17 steht damit unter einem rechten Winkel zu der Mittelachse M des Spotreflektors 16. Die Mittelachse M des Spotreflektors 16 ist bezüglich einer durch die Lichtaustrittsöffnung 21 definierten Lichtaustrittsebene E unter einem Winkel β geneigt.Within a housing 14, which for example can also be a concrete housing, is a Holding device 15 is arranged, which in principle any way a spot reflector 16 holds. Within the spot reflector 16 is a free-radiating High-voltage halogen lamp 17 is arranged, whose Socket 18 partially through an opening 19 in the wall of the spot reflector 16 from the interior 20 of the Spot reflector 16 protrudes. The longitudinal axis L of High-voltage halogen lamp 17 is thus under one right angle to the center axis M of the spot reflector 16. The center axis M of the spot reflector 16 is with respect to a through the light exit opening 21st defined light exit plane E at an angle β inclined.

    Daraus ergibt sich, daß die Längsachse L der Hochvolt-Halogenlampe 17 unter einem spitzen Winkel α (gemäß Darstellung in Fig. 2) bezüglich der Lichtaustrittsebene E der Beleuchtungsvorrichtung 10 steht. Der Winkel α ist in Abhängigkeit von der Raumhöhe H zu wählen. Bei dem in den Fig. dargestellten Ausführungsbeispiel beträgt der Winkel α etwa 17°.It follows that the longitudinal axis L of High-voltage halogen lamp 17 at an acute angle α (as shown in Fig. 2) with respect to the light exit plane E of the lighting device 10 is. The angle α is dependent on the room height H to choose. In the embodiment shown in FIGS the angle α is about 17 °.

    Bei einer Raumhöhe H einer auszuleuchtenden Wand 12 von ca. 30 m beträgt der Winkel α etwa 6°.At a ceiling height H of a wall to be illuminated 12 of about 30 m, the angle α is about 6 °.

    Der parabolförmige Spotreflektor 16 weist im Bereich seiner Lichtaustrittsöffnung 22 eine richtungsneutrale, klare, kaum strukturierte Streulinse 23 auf. Die Streulinse dient im wesentlichen dazu, eine reduzierte Lichtmenge auf ein nach Art einer Wandfluterschaufel ausgebildetes elipsoidförmiges Reflektorelement 24 zu werfen. Das auf seiner Hohlseite 25 verspiegelte Reflektorelement 24 dient dazu, den oberen Bereich 12a der Wand 12 weich und schlierenfrei auszuleuchten.The parabolic-shaped spot reflector 16 has in Area of its light exit opening 22 a direction neutral, clear, hardly structured dispersion lens 23 on. The scattering lens essentially serves a reduced amount of light on a like a Wallwasher scoop formed elipsoidförmiges To throw reflector element 24. That on his hollow side 25 mirrored reflector element 24 serves the upper portion 12a of the wall 12 soft and streak free illuminate.

    Während der Direktlichtanteil (angedeutet in Fig. 2 durch die beiden Strahlen S1 und S2) im wesentlichen für die Ausleuchtung der unteren Wandbereiche 12b sorgt, dient die Streulinse 23 gewissermaßen als Bindeglied zwischen dem Direktlichtanteil und dem Streulichtanteil. Der Streulichtanteil wird über das Reflektorelement 24 in den oberen Wandbereich 12a hin geworfen.While the direct light component (indicated in Fig. 2 by the two beams S1 and S2) in essential for the illumination of the lower wall areas Provides 12b, the scattering lens 23 serves as it were as a link between the direct light component and the amount of scattered light. The scattered light component is over the reflector element 24 in the upper wall area 12a thrown out.

    Bezüglich des Unterschiedes zwischen Direktlichtanteil und Streulichtanteil des von der Lampe 17 der Beleuchtungsvorrichtung 10 ausgesandten Lichtes sei angemerkt, daß als Direktlichtanteil derjenige Lichtanteil bezeichnet wird, der im wesentlichen entweder unmittelbar von der Lichtquelle 17 ohne jegliche Reflektion durch die Lichtaustrittsöffnung 21 der Beleuchtungsvorrichtung 10 austritt, wie auch derjenige Lichtanteil, der lediglich von dem Spotreflektor 16 reflektiert wird und anschließend durch die Lichtaustrittsöffnung 21 austritt.Regarding the difference between direct light component and stray light component of the lamp 17 the lighting device 10 emitted light It should be noted that as a direct light component one Light component is called, which is essentially either directly from the light source 17 without any Reflection through the light exit opening 21 of Lighting device 10 exits, as well as the one Proportion of light, only from the spot reflector 16 is reflected and then by the Light exit opening 21 emerges.

    Als Streulichtanteil hingegen bezeichnet man dasjenige Licht, welches von der Hochvolt-Halogenlampe 17 kommend von der Streulinse 23 abgelenkt und auf das Reflektorelement 24 geworfen wird. Dieses Licht kann dann von dem Reflektorelement 24 bzw. von dessen verspiegelter Hohlseite 25 durch die Lichtaustrittsöffnung 21 der Beleuchtungsvorrichtung 10 ausgeworfen werden und insbesondere den oberen Wandbereich 12a der auszuleuchtenden Wand 12 beleuchten.On the other hand, the scattered light component is called the light that comes from the high-voltage halogen lamp 17 coming from the scattered lens 23 and deflected is thrown onto the reflector element 24. This Light can then from the reflector element 24 and of the mirrored hollow side 25 through the light exit opening 21 of the lighting device 10 ejected and especially the upper wall area 12a of the wall 12 to be illuminated.

    Mit der erfindungsgemäßen Beleuchtungsvorrichtung 10 lassen sich keine Übergänge zwischen diesen beiden Sichtanteilen erkennen, wodurch die Wand 12 gleichmäßig ausgeleuchtet wird.With the lighting device according to the invention 10, there are no transitions between them recognize both viewing portions, causing the wall 12th is evenly lit.

    Die Hochvolt-Halogenlampe 17 ist derart angeordnet, daß der Lichtschwerpunkt der Hochvolt-Halogenlampe 17 im Bereich eines oberen Brennpunktes (etwa bei Pos. P1) des Reflektorelementes 24 liegt. Die Anordnung ist dabei so getroffen, daß der untere, zweite Brennpunkt P2 in der Lichtaustrittsöffnung 21 der Beleuchtungsvorrichtung, und zwar insbesondere in der Lichtaustrittsebene E, liegt.The high-voltage halogen lamp 17 is arranged such that the light center of the high-voltage halogen lamp 17 in the region of an upper focal point (about at Pos. P1) of the reflector element 24 is located. The Arrangement is made such that the lower, second focus P2 in the light exit opening 21 the lighting device, in particular in the light exit plane E, is located.

    Innerhalb der Hochvolt-Halogenlampe 17 ist eine im wesentlichen M-förmige, nicht dargestellte Wendel angeordnet. Die Anordnung dieser Glühwendel läßt sich beispielsweise aus dem eingangs genannten Katalog der Anmelderin, Seite 372 in der letzten Spalte erkennen.Within the high-voltage halogen lamp 17 is a essentially M-shaped coil, not shown arranged. The arrangement of this filament can be For example, from the aforementioned catalog of Applicant, page 372 in the last column.

    Das eigentliche Leuchtvolumen, das man auch als Lichtschwerpunkt bezeichnet, ist somit räumlich sehr begrenzt und damit konzentriert um den ersten Brennpunkt P1 des Reflektorelementes 24 herum angeordnet.The actual light volume, which is also called Highlighted light, is thus spatially very limited and thus focused around the first focus Pl of the reflector element 24 around.

    Der Spotreflektor 16 ist relativ zu dem Reflektorelement 24 derart angeordnet, daß der Brennpunkt des parabolischen Spotreflektors 16 mit dem ersten Brennpunkt P1 des elipsoidförmigen Reflektorelementes 24 zusammenfällt. In vorteilhafter Weise ist darüber hinaus der Spotreflektor 16 im Bereich seines Zentrums Z abgeplattet. Dies ermöglicht einen besonders hohen Wirkungsgrad der erfindungsgemäßen Beleuchtungsvorrichtung. The spot reflector 16 is relative to the reflector element 24 arranged such that the focal point of the parabolic spot reflector 16 with the first Focus P1 of the ellipsoidal reflector element 24 coincides. In an advantageous way is about it In addition, the spot reflector 16 in the region of its center Z flattened. This allows for a special high efficiency of the lighting device according to the invention.

    Im Lichtweg ist zwischen dem Spotreflektor 16 und der Lichtaustrittsöffnung 21 der Beleuchtungsvorrichtung 10 eine Linsenanordnung 26 vorgesehen, die einerseits über eine Spreizlinse 27 verfügen kann, welche im wesentlichen dazu dient, das austretende Licht oval (bezüglich Fig. 2 aus der Papierebene heraus) aufzuspreizen, um einen möglichst breiten Wandbereich auszuleuchten, oder den Abstand mehrerer, entlang einer Linie angeordneter Beleuchtungsvorrichtung 10 zueinander gering zu halten. Andererseits kann sich unterhalb der Spreizlinse 27 eine Darklight-Reflektoranordnung 28 befinden, die Blendfreiheit gewährleistet, da in Richtung der Wand 12 eine hohe Abblendung erfolgt.In the light path is between the spot reflector 16th and the light exit opening 21 of the lighting device 10, a lens assembly 26 is provided which on the one hand can have an expansion lens 27, which essentially serves the exiting Light oval (with reference to FIG. 2 out of the plane of the paper) spread open to the widest possible wall area to illuminate, or the distance of several, along a line arranged lighting device 10 to keep each other low. on the other hand may be below the expansion lens 27, a darklight reflector assembly 28, the glare-free ensures, as in the direction of the wall 12 a high dimming takes place.

    Der Sockel 18 der Hochvolt-Halogenlampe 17 ist lösbar an einem Fassungskörper 29 befestigt, welcher in wärmeleitender Verbindung mit einem Kühlkörper 30 steht. Der beispielsweise aus Aluminium-Druckguß bestehende Kühlkörper 30 kann über eine Vielzahl von Kühlrippen 31 verfügen. Auf diese Weise gelingt es auch bei leistungsstarken Hochvolt-Halogenlampen 17 mit Leistungen von 500 Watt eine ausreichende Kühlung zu gewährleisten.The base 18 of the high voltage halogen lamp 17 is releasably secured to a socket body 29, which in heat-conducting connection with a heat sink 30 stands. The example of die-cast aluminum existing heatsink 30 can over a variety of Cooling fins 31 have. That's how it works even with high-performance high-voltage halogen lamps 17 with powers of 500 watts sufficient cooling to ensure.

    Bezüglich der Fig. 2 und 3 sei festgestellt, daß die Position der Hochvolt-Halogenlampe 17 und des Fassungskörpers 29 bzw. des Glühkörpers 30 aus Gründen der Übersichtlichkeit in einer um 90° um die Mittelachse M des Spotreflektors 16 gedrehten Position dargestellt ist. With reference to FIGS. 2 and 3, it should be noted that the position of the high-voltage halogen lamp 17 and the Socket body 29 and the mantle 30 for reasons the clarity in a 90 ° around the central axis M of the spot reflector 16 rotated position is shown.

    Tatsächlich ist die Hochvolt-Halogenlampe 17 derart angeordnet, daß die Längsachse L der Hochvolt-Halogenlampe 17 in einer Ebene parallel zur zweiten Wand 12 liegt. Dementsprechend müßten korrekte Zeichnungen bei einer Schnittdarstellung gemäß Fig. 2 einen Spotreflektor 16 zeigen, der im Bereich der dargestellten Öffnung 19 durchgehend (also ohne Öffnung) ausgebildet wäre sowie eine Hochvolt-Halogenlampe 17 in einer Schnittdarstellung quer zu ihrer Längsachse L, wie sie in Fig. 3 dargestellt ist.In fact, the high-voltage halogen lamp is 17 arranged such that the longitudinal axis L of the high-voltage halogen lamp 17 in a plane parallel to the second Wall 12 is located. Accordingly, correct drawings would have to in a sectional view according to FIG. 2 a spot reflector 16 show that in the field of illustrated opening 19 throughout (ie without opening) would be formed as well as a high-voltage halogen lamp 17 in a cross-sectional view across her Longitudinal axis L, as shown in Fig. 3.

    Analog muß man sich die Lage der Hochvolt-Halogenlampe 17 in Fig. 3 derart vorstellen, daß ihre Längsachse L tatsächlich in der Papierebene liegt, also parallel zur Lichtaustrittsebene E sowie senkrecht zur Mittelachse M des Spotreflektors 16 angeordnet ist. Demgemäß müßte der Spotreflektor 16 in einer richtigen Darstellung der Fig. 3 tatsächlich eine Öffnung 19 erkennen lassen.Analog you have to look at the location of the high-voltage halogen lamp 17 in Fig. 3 such that their Longitudinal axis L is actually in the plane of the paper, ie parallel to the light exit plane E and vertical arranged to the central axis M of the spot reflector 16 is. Accordingly, the spot reflector 16 would have to be in a correct representation of Fig. 3 actually to reveal an opening 19.

    Ein Auswechseln der Hochvolt-Halogenlampe 17 gestaltet sich bei der erfindungsgemäßen Beleuchtungsvorrichtung 10 besonders einfach, da die Lichtaustrittsöffnung 21 der Beleuchtungsvorrichtung 10 viel größer ist als die Lampe 17. Der Benutzer muß lediglich die mittels eines Sicherungsseiles 32 gehaltene Linsenanordnung 26 lösen und hat anschließend Zugriff auf eine Haltefeder 33 für die schwenkbar angeordnete Streulinse 23. Replacing the high-voltage halogen lamp 17 designed in the lighting device according to the invention 10 especially easy as the Light exit opening 21 of the lighting device 10 is much larger than the lamp 17. The user must only the means of a safety rope 32nd held lens assembly 26 and then has Access to a retaining spring 33 for the pivot arranged scattering lens 23.

    Durch Betätigung der Haltefeder 33 und Verschwenken der Streulinse 23 kann der Benutzer die Hochvolt-Halogenlampe 17 auf einfach Weise greifen und eine neue Lampe 17 einsetzen.By actuating the retaining spring 33 and pivoting the scattering lens 23, the user can High-voltage halogen lamp 17 in a simple way and insert a new lamp 17.

    Ein derartiger Auswechselvorgang ist am Stand der Technik mit einer PAR Lampe wesentlich aufwendiger, da PAR Lampen deutlich größer sind als Hochvolt-Halogenlampen 17.Such a replacement process is on the stand the technique with a PAR lamp much more expensive, because PAR lamps are significantly larger than high-voltage halogen lamps 17th

    Als Lichtquelle wird vorteilhafterweise eine Hochvolt-Halogenlampe 17 der Bauart QT 15, 500 Watt, 230 V bzw. QT 22, 500 Watt, 230 V verwendet, so daß auf eine weit verbreitete Lampenart zugegriffen werden kann.As a light source is advantageously a High-voltage halogen lamp 17 of type QT 15, 500 watts, 230 V or QT 22, 500 watts, 230 V used, so that be accessed in a widely used lamp type can.

    Der Spotreflektor 16 selbst kann vorteilhafterweise aus mehreren in Umfangsrichtung benachbarten Segmenten bestehen. The spot reflector 16 itself can advantageously from several circumferentially adjacent Segments exist.

    BezugszeichenlisteLIST OF REFERENCE NUMBERS

    HH
    Höheheight
    LL
    Längsachse von 17Longitudinal axis of 17
    MM
    Mittelachse von 16Central axis of 16
    Ee
    LichtaustrittsebeneLight exit plane
    αα
    Winkelangle
    ββ
    Winkelangle
    12a12a
    oberer Bereich von 12upper area of 12
    12b12b
    unterer Bereich von 12lower area of 12
    S1S1
    Strahlenradiate
    S2S2
    Strahlenradiate
    P1P1
    1. Brennpunkt von 241st focus of 24
    P2P2
    2. Brennpunkt von 242nd focal point of 24
    ZZ
    Zentrum von 16Center of 16
    1010
    Beleuchtungsvorrichtunglighting device
    1111
    Deckeblanket
    1212
    SeitenwandSide wall
    1313
    Benutzeruser
    1414
    Gehäusecasing
    1515
    Haltevorrichtungholder
    1616
    Spotreflektorspot reflector
    1717
    Hochvolt-HalogenlampeHigh-voltage halogen lamp
    1818
    Sockel von 17Socket of 17
    1919
    Öffnung von 16Opening of 16
    2020
    Innenrauminner space
    2121
    Lichtaustrittsöffnung von 10Light emission opening of 10
    2222
    Lichtaustrittsöffnung von 16Light exit opening of 16
    2323
    Streulinsediffusing lens
    2424
    Reflektorelementreflector element
    2525
    Hohlseite von 24Hollow side of 24
    2626
    Linsenanordnunglens assembly
    2727
    SpreizlinseSpreizlinse
    2828
    Darklight-ReflektorParabolic reflector
    2929
    Fassungskörpersocket body
    3030
    Kühlkörperheatsink
    3131
    Kühlrippencooling fins
    3232
    Seilrope
    3333
    Haltefederretaining spring

    Claims (12)

    1. Lighting fixture (10) for mounting to a first wall (11) defining a light exit plane (E), in particular to a ceiling, and for uniformly illuminating a second wall (12) of large area and disposed at an angle, in particular an angle of 90°, to the first wall (11), comprising a light source (17) arranged in the region of the first focal point (P1) of a substantially ellipsoidal reflector element (24), a lens arrangement (26) including a spreading lens (27) inclined with respect to the light exit plane (E), and a light exit aperture (21) in which the second focal point (P2) of the reflector element (24) is arranged, characterised in that
      the light source (17) is a free-radiating high-voltage halogen bulb arranged inside a paraboloidal spot reflector (16), the longitudinal axis (L) of the bulb (17) being disposed substantially perpendicularly to the centre axis (M) of the spot reflector (16),
      the first focal point (P1) of the reflector element (24) coincides with the focus of the spot reflector (16), and
      the spot reflector (16) has an opening (19) through which the bulb (17) passes at least partially.
    2. Lighting fixture according to claim 1, characterised in that the longitudinal axis (L) of the bulb (17) is disposed in a plane parallel to the second wall (12).
    3. Lighting fixture according to claim 1 or 2, characterised in that the radius of curvature of the reflector element (24), or the distance between the two focal points (P1, P2) of the reflector element (24), is adapted to the height (H) of the second wall (12) to be illuminated.
    4. Lighting fixture according to any one of the preceding claims, characterised in that the bulb base (18) projects at least partially from the interior (20) of the spot reflector (16).
    5. Lighting fixture according to any one of the preceding claims, characterised in that the bulb base (18) is fixed detachably to a bulb holder (29) which is in heat-conducting communication with a cooling body (30).
    6. Lighting fixture according to claim 5, characterised in that the cooling body (30) is provided with cooling fins (31).
    7. Lighting fixture according to claim 5 or 6, characterised in that the cooling body (30) and the reflector (24) are fixed to a common retaining device (15) which is firmly connected to a housing (14) for the lighting fixture (10).
    8. Lighting fixture according to any one of the preceding claims, characterised in that the spot reflector (16) is flattened in the region of its centre (Z).
    9. Lighting fixture according to any one of the preceding claims, characterised in that the light source (17) is a bulb of type QT 15, 500 W, 230 V or QT 22, 500 W, 230 V.
    10. Lighting fixture according to any one of the preceding claims, characterised in that a directionally neutral, clear, barely structured scattering lens (23) is arranged in the region of a light exit aperture (22) of the spot reflector (16).
    11. Lighting fixture according to claim 10, characterised in that the scattering lens (23) is arranged swivellably relative to the spot reflector (16).
    12. Lighting fixture according to any one of the preceding claims, characterised in that the spot reflector (16) is segmented.
    EP99119819A 1998-10-12 1999-10-07 Lighting apparatus to be mounted to a first wall defining a light emitting window Expired - Lifetime EP0994294B1 (en)

    Priority Applications (1)

    Application Number Priority Date Filing Date Title
    DK99119819T DK0994294T3 (en) 1998-10-12 1999-10-07 Lighting device for mounting on a first, a light output plane defining wall

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    DE19846726 1998-10-12
    DE19846726A DE19846726A1 (en) 1998-10-12 1998-10-12 Lighting device for attachment to a first wall defining a light exit plane

    Publications (3)

    Publication Number Publication Date
    EP0994294A2 EP0994294A2 (en) 2000-04-19
    EP0994294A3 EP0994294A3 (en) 2003-01-22
    EP0994294B1 true EP0994294B1 (en) 2005-06-15

    Family

    ID=7884038

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP99119819A Expired - Lifetime EP0994294B1 (en) 1998-10-12 1999-10-07 Lighting apparatus to be mounted to a first wall defining a light emitting window

    Country Status (5)

    Country Link
    EP (1) EP0994294B1 (en)
    AT (1) ATE298065T1 (en)
    DE (2) DE19846726A1 (en)
    DK (1) DK0994294T3 (en)
    ES (1) ES2242339T3 (en)

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    DE10216248A1 (en) * 2002-04-12 2003-10-23 Zumtobel Staff Gmbh & Co Kg Recessed luminaire with front reflector
    EP2019255A3 (en) * 2007-07-26 2013-03-20 ERCO GmbH Lamp for illumination a surface in a building
    DE202013103270U1 (en) * 2013-07-22 2014-10-23 Zumtobel Lighting Gmbh Luminaire with a curved prismatic structure element
    DE102013021308B4 (en) * 2013-12-19 2017-08-31 Erco Gmbh lamp
    DE102022102722A1 (en) 2022-02-04 2023-08-10 Erco Gmbh Luminaire for illuminating a surface area

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    US2179161A (en) * 1938-03-24 1939-11-07 Rambusch Decorating Company Illuminating device
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    US3643089A (en) * 1969-07-15 1972-02-15 Century Lighting Inc Lighting fixture for illuminating planar surfaces
    DE2926934A1 (en) * 1979-07-04 1981-01-22 Eurolicht Lichtarchitektur Gmb Built-in lamp with double reflector - has air vent between rear reflector and end cap also screen inside outer end
    DE3249401A1 (en) * 1982-10-18 1984-10-04 Franz Sill Gmbh, 1000 Berlin Recessed ceiling luminaire
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    Also Published As

    Publication number Publication date
    EP0994294A3 (en) 2003-01-22
    ATE298065T1 (en) 2005-07-15
    DE59912178D1 (en) 2005-07-21
    ES2242339T3 (en) 2005-11-01
    DE19846726A1 (en) 2000-04-20
    EP0994294A2 (en) 2000-04-19
    DK0994294T3 (en) 2005-07-04

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