EP0347700B1 - Lighting fixture - Google Patents

Lighting fixture Download PDF

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Publication number
EP0347700B1
EP0347700B1 EP89110584A EP89110584A EP0347700B1 EP 0347700 B1 EP0347700 B1 EP 0347700B1 EP 89110584 A EP89110584 A EP 89110584A EP 89110584 A EP89110584 A EP 89110584A EP 0347700 B1 EP0347700 B1 EP 0347700B1
Authority
EP
European Patent Office
Prior art keywords
lamp
light
reflector
wall
light outlet
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
EP89110584A
Other languages
German (de)
French (fr)
Other versions
EP0347700A3 (en
EP0347700A2 (en
Inventor
Rudolf Rieger
Bernard Cosnuau
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.)
Gebr LUDWIG GMBH
Original Assignee
Gebr LUDWIG GMBH
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Publication date
Application filed by Gebr LUDWIG GMBH filed Critical Gebr LUDWIG GMBH
Priority to AT89110584T priority Critical patent/ATE98352T1/en
Publication of EP0347700A2 publication Critical patent/EP0347700A2/en
Publication of EP0347700A3 publication Critical patent/EP0347700A3/en
Application granted granted Critical
Publication of EP0347700B1 publication Critical patent/EP0347700B1/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
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/02—Fastening of light sources or lamp holders with provision for adjustment, e.g. for focusing
    • 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
    • F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
    • F21V14/02—Controlling the distribution of the light emitted by adjustment of elements by movement of light sources
    • 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
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes

Definitions

  • the invention relates to a lamp which can be switched between direct lighting and indirect lighting, with a housing, with at least one socket arranged in the housing and connected to it for at least one lamp, and with an adjusting device for moving the socket with the lamp relative to the housing between a position for direct lighting and a position for indirect lighting.
  • Direct lighting is understood to mean lighting in which the luminous flux from a lamp reaches a room or area to be illuminated without being deflected.
  • Indirect lighting is understood to mean lighting in which the luminous flux only reaches the room or area to be illuminated via walls or reflectors that deflect it.
  • Such a lamp is known from DE-A-34 13 354.
  • the socket together with its lamp, is fastened to a support, which can also be referred to as part of a housing, so as to be rotatable about the lamp longitudinal axis.
  • the socket is provided with a reflector that covers half the side of the lamp. In the position for direct lighting, the reflector is located above the lamp, so that the light reaches the room to be illuminated directly from the lamp via the lower opening of a lampshade.
  • the lamp can be rotated about its longitudinal axis by hand or electrically by a motor.
  • a plurality of lamps which can be rotated about their longitudinal axis by 180 ° between the two positions can be rotated by hand or by motor using a common device.
  • a lamp is only known for direct lighting.
  • a lamp can be swiveled either behind one or the other of two housing openings.
  • the two housing openings are designed differently.
  • one housing opening can be used to generate "reading light” and the other housing opening can be provided with a lens for generating "examination light” for examining a patient in a hospital.
  • a luminaire for indirect lighting only shows FR-A-25 67 622 (registration no .: 85 10718), which contains a lamp which can be pivoted from a position for indirect lighting behind a reflector, thereby reducing the strength of the Luminaire emerging luminous flux from a maximum value to zero.
  • luminaires with a reflector screen which consists of a downwardly funnel-shaped screen part and a funnel-shaped adjoining at the upper end extended part of the screen.
  • a lamp arranged in the shade always emits light directly into the room to be illuminated through the lower part of the shade.
  • a luminaire with a fluorescent lamp which can be adjusted within an essentially semicircular reflector with respect to its location relative to the reflector in order to generate either a deep radiation or a wide radiation.
  • the luminous flux arrives directly in the room area to be illuminated.
  • a similar lamp is also known from AT-B-382 949.
  • Luminaires with lamps which can be pivoted in different directions are known from DE utility model specification 1,780,697 and US Pat. No. 4,712,167, the light flowing in all positions directly into the area to be illuminated.
  • DE-A-767 759 shows a lamp with a lamp arranged within an annular reflector.
  • the lamp can be moved around in the reflector, thereby changing the direction of the light reflected by the reflector.
  • DE-PS 411 679 shows a lampshade with a pivotable shade part, a socket for a lamp being attached to the shade part.
  • the lamp can be pivoted out of the screen together with the screen part, so that the lamp shines directly and undamped into the room to be illuminated when the screen part is pivoted out.
  • the pivotable shade part is swiveled in, the lamp is completely inside the lamp shade and its light in turn reaches it directly, but attenuated by the material of the Lampshade, in the room to be illuminated.
  • the object of the invention is to achieve a simpler and more versatile construction for the lamp of the type mentioned at the outset. Furthermore, the invention is to design the lamp so that it can be switched between direct lighting and indirect lighting not only when using incandescent lamps but also when using long fluorescent tubes. A low actuation force and short actuation distances should be required for switching between direct lighting and indirect lighting.
  • This object is achieved according to the invention in that two light outlets pointing in opposite directions are provided, that between the two light outlets a wall is provided with a wall surface located at a distance from the two light outlets, which is facing away from one light outlet and facing the other light outlet is that a light beam path is formed from one light outlet around one end of the wall and over its wall surface to the other light outlet, that the lamp is arranged in the light beam path, and that the lamp with its holder is movable between two different locations relative to the housing, the lamp being movable over one end of the wall, and the lamp passing through the one light outlet at one location in the position for direct lighting and through the other position between the wall surface and the other light outlet at the position for indirect lighting other li outlet is located.
  • the invention is described below with reference to the drawing.
  • the drawing shows a cross-sectional view of a preferred embodiment of a lamp according to the invention.
  • the lamp according to the invention can be a floor lamp, ceiling lamp or wall lamp.
  • the lamp according to the invention shown as an example in the drawing is a floor lamp. It contains a stand or support 2, a housing 4, first and second reflectors 6 and 8 for direct lighting of a room area 10 to be illuminated, and first, second and third reflectors 12, 14 and 16 for indirect lighting of the room area 10 to be illuminated.
  • the second reflector 8 for direct lighting and the reflectors 12, 14 and 16 for indirect lighting consist of a single piece.
  • the two reflectors 6 and 8 for direct lighting are arranged at a distance from one another and extend upwards from the lower surface 18 of the housing 4, whereby they converge in a parabolic shape and their reflecting surfaces 7 and 9 lie opposite one another.
  • the surfaces 13, 15 and 17 of the reflectors 12, 14 and 16 for indirect lighting are directed upwards to a light outlet 36 for indirect lighting.
  • the left end 19 of the left, first reflector 12 for indirect lighting in the drawing adjoins the upper end 21 of the right, second reflector 8 for direct lighting.
  • the two ends 19 and 21 form the apex of an angle between approximately 60 ° and 120 ° between the two reflectors 8 and 12.
  • the second reflector 14 for indirect lighting is located between the first reflector 12 and the third reflector 16 for indirect lighting. All reflectors are arcuate concave so that they reflect the light from lamps 20, 22 and 24 and focus.
  • the housing 4 has the area to be illuminated 10 opposite bottom 30 an opening 32 between the two reflectors 6 and 8 as a light outlet for direct lighting.
  • the housing 4 also has on the top 34 the opening 36 which extends as a light outlet for indirect lighting over all three upward-facing reflectors 12, 14 and 16 for indirect lighting.
  • the second reflector 8 for direct lighting extends from the lower opening 32 to one end 19 of the first reflector 12 for indirect lighting.
  • the first reflector 6 for direct lighting extends from the lower opening 32 upwards beyond the ends 19 and 21 of the two reflectors 8 and 12.
  • the housing 4 is connected to the carrier 2 via an electrical connection channel 38 for electrical lines.
  • electrical terminals 40 and a starter 42 for the lamps 20, 22 and 24 are attached.
  • the lamps 20, 22 and 24 are each U-shaped fluorescent tubes, the two ends of which lie parallel next to one another and are inserted into the associated holder 26, 28. Because of the cross-sectional representation, each lamp or tube 20, 22 and 24 is only visible in the form of two rings.
  • the socket 44 which carries the lamp 20 and supplies it with electricity, is not fixed directly to the housing 4, but is fixed in place on an adjusting element 46 by means of screws 48.
  • the adjusting element 46 has the shape of a leaf-like lever which is pivotally attached to an end wall 52 of the housing 4 via a bearing pin 50.
  • the adjusting element 46 has on its side of the bearing bolt 50 facing away from the socket 44 a manual actuating element 54 which protrudes from the underside 30 of the housing 4.
  • the position of the adjusting element 46 shown in the drawing with the solid lines and the holder 44 carried by it with the lamp 20 is the position for direct lighting, in which the light of this lamp 20 is radiated directly into the area 10 to be illuminated in accordance with the arrows 56 , reflected and bundled by reflectors 6 and 8 for direct lighting. Part of the luminous flux of this lamp 20 also reaches the room area 10 to be illuminated indirectly via the upper opening 36 of the housing 4, reflected and bundled by the reflector 12 directed upwards for indirect lighting.
  • the adjusting element 46 can be pivoted with its manual actuating element 54 into the position shown in broken lines in the drawing, in which the lamp 20 carried by the adjusting element 46 with the holder 44 is completely above that in the drawing
  • the first reflector 12 for indirect lighting shown on the left is located at a location between this first reflector 12 and the upper opening 36. In this position for indirect lighting, the light of the lamp 20 is directed only upward from the first reflector 12 for indirect lighting located below it through the opening 36 of the housing 4, and thus on an indirect light beam path around the housing 4, into the ones to be illuminated Room area 10 delivered.
  • the left end 19 of the first reflector 12 forms a corner or a step, around which the lamp 20 with its holder 44 can be pivoted between the two locations mentioned.
  • an electromagnetic drive 66 can be provided for adjusting the setting element 46, which is the holder 44 carries with the lamp 20.
  • the drawing shows as an electromagnetic drive 66 an electromagnet 68 fastened to the end wall 52 of the housing 4 with a plunger 70 which is pivotally connected to the adjusting element 48 via a joint 72.
  • the electromagnet 68 By alternately energizing the electromagnet 68, the setting element 46 with the holder 44 and the lamp 20 can be adjusted via the plunger 70 either in the position for direct lighting (solid lines) or in the position for indirect lighting (dash-dotted lines).
  • the two reflectors 6 and 8 for direct lighting and the neighboring reflector 12 for indirect lighting form between them a light beam path 76, the ends of which are facing away from one another and are formed by the lower opening 32 and the upper opening 36 of the housing 4.
  • the lamp 20 can be adjusted with the socket 44 within the light beam path 76 between the two locations and thereby between the two positions for direct lighting and indirect lighting around the left end 19 of the first reflector 12.
  • the section 77 of the light beam path 76 which lies between the two reflectors 6 and 8 and the lower opening 32 for direct illumination, extends approximately at right angles to the section 79 of the light beam path 76, which is between the reflectors 12, 14 and 16 and the upper opening 36 for indirect lighting.
  • a luminaire can contain several lamps, which are selectively adjustable between a position for direct lighting and a position for indirect lighting.
  • the socket 44 for the adjustable lamp 20 can instead of a pivotable element 46 can also be carried by a rotatable adjusting element.
  • a preferred embodiment consists in that the socket 44 with the lamp 20 can be pivoted about an axis of rotation by a motor or a manually operated rotary knob which is arranged inside or outside a front wall of the housing 4. This axis of rotation can be formed by the bearing pin 50 or by an axis.
  • the socket 44 can be rotatably arranged on the axis of rotation relative to it or can be connected to it in a rotationally fixed manner.
  • Another possible embodiment is that the adjustment between the two locations and positions is not carried out by a pivoting or rotating movement, but by a linear displacement within the housing 4.
  • the light in the openings 32 and 36 can also contain panels or translucent covers.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Liquid Crystal Substances (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Storage Of Fruits Or Vegetables (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)
  • Lasers (AREA)

Abstract

Lighting fixture having a lampholder (44), which is attached on a housing (4) adjustable relative to said housing, and together with a lamp (20) that is carried by the lampholder (44) can be adjusted as desired into a position for direct illumination or a position for indirect illumination of an area of a room (10) to be illuminated between various sites. <IMAGE>

Description

Die Erfindung betrifft eine Leuchte, welche zwischen direkter Beleuchtung und indirekter Beleuchtung umschaltbar ist, mit einem Gehäuse, mit mindestens einer im Gehäuse angeordneten und mit ihm verbundenen Fassung für mindestens eine Lampe, und mit einer Einstellvorrichtung zur Bewegung der Fassung mit der Lampe relativ zum Gehäuse zwischen einer Position für direkte Beleuchtung und einer Position für indirekte Beleuchtung.The invention relates to a lamp which can be switched between direct lighting and indirect lighting, with a housing, with at least one socket arranged in the housing and connected to it for at least one lamp, and with an adjusting device for moving the socket with the lamp relative to the housing between a position for direct lighting and a position for indirect lighting.

Definition: Unter "direkter Beleuchtung" wird eine Beleuchtung verstanden, bei welcher der Lichtstrom von einer Lampe ohne Umlenkung in einen zu beleuchtenden Raum oder Raumbereich gelangt. Unter "indirekter Beleuchtung" wird eine Beleuchtung verstanden, bei welcher der Lichtstrom nur über ihn umlenkende Wände oder Reflektoren in den zu beleuchtenden Raum oder Raumbereich gelangt.Definition: "Direct lighting" is understood to mean lighting in which the luminous flux from a lamp reaches a room or area to be illuminated without being deflected. “Indirect lighting” is understood to mean lighting in which the luminous flux only reaches the room or area to be illuminated via walls or reflectors that deflect it.

Eine solche Leuchte ist aus der DE-A-34 13 354 bekannt. Bei der bekannten Leuchte ist die Fassung zusammen mit ihrer Lampe um die Lampenlängsachse drehbar an einem Träger befestigt, der auch als Teil eines Gehäuses bezeichnet werden kann. Die Fassung ist mit einem Reflektor versehen, welcher die halbe Seite der Lampe abdeckt. In der Position für direkte Beleuchtung befindet sich der Reflektor über der Lampe, so daß das Licht direkt von der Lampe über die untere Öffnung eines Lampenschirms in den zu beleuchtenden Raum gelangt. Durch Drehung der Lampe mit ihrer Fassung und ihrem Reflektor um 180° um die Lampenlängsachse gelangt der Reflektor auf die Unterseite der Lampe, so daß kein Licht mehr nach unten, sondern nur nach oben durch den Lampenschirm hindurch gegen die Zimmerdecke gelangen kann, welche den Lichtstrom in den zu beleuchtenden Raum reflektiert. Diese Dreh-Position der Lampe und ihres Reflektors ist also die Position für indirekte Beleuchtung. Das Drehen der Lampe um ihre Längsachse kann von Hand oder durch einen Motor elektrisch bewirkt werden. Mehrere um ihre Längsachse um 180° zwischen den beiden Positionen drehbare Lampen können von einer gemeinsamen Vorrichtung von Hand oder motorisch gedreht werden.Such a lamp is known from DE-A-34 13 354. In the known luminaire, the socket, together with its lamp, is fastened to a support, which can also be referred to as part of a housing, so as to be rotatable about the lamp longitudinal axis. The socket is provided with a reflector that covers half the side of the lamp. In the position for direct lighting, the reflector is located above the lamp, so that the light reaches the room to be illuminated directly from the lamp via the lower opening of a lampshade. By rotating the lamp with its socket and its reflector at 180 ° around the longitudinal axis of the lamp reaches the bottom of the lamp, so that no more light can go down, but only up through the lampshade against the ceiling, which reflects the luminous flux into the room to be illuminated. This rotating position of the lamp and its reflector is therefore the position for indirect lighting. The lamp can be rotated about its longitudinal axis by hand or electrically by a motor. A plurality of lamps which can be rotated about their longitudinal axis by 180 ° between the two positions can be rotated by hand or by motor using a common device.

Aus der US-A-3 829 679 ist eine Leuchte nur für direkte Beleuchtung bekannt. In einem Gehäuse ist eine Lampe wahlweise je hinter die eine oder die andere von zwei Gehäuse-Öffnungen schwenkbar. Die beiden Gehäuseöffnungen sind verschieden ausgebildet. Beispielsweise kann eine Gehäuse-Öffnung zur Erzeugung von "Leselicht" dienen und die andere Gehäuse-Öffnung mit einer Linse zur Erzeugung von "Untersuchungslicht" zur Untersuchung eines Patienten in einem Krankenhaus versehen sein.From US-A-3 829 679 a lamp is only known for direct lighting. In a housing, a lamp can be swiveled either behind one or the other of two housing openings. The two housing openings are designed differently. For example, one housing opening can be used to generate "reading light" and the other housing opening can be provided with a lens for generating "examination light" for examining a patient in a hospital.

Eine Leuchte nur für indirekte Beleuchtung zeigt die FR-A-25 67 622 (Anmelde-Nr.: 85 10718), welche eine Lampe enthält, welche aus einer Position für indirekte Beleuchtung hinter einen Reflektor schwenkbar ist, um dadurch die Stärke des aus der Leuchte austretenden Lichtstromes von einem Maximalwert auf den Wert Null zu reduzieren. Ferner sind aus dem DE-U 88 02 509.8 und der GB-A-510 448 Leuchten mit einem Reflektorschirm bekannt, welcher aus einem nach unten trichterförmig erweiterten Schirmteil und einem sich am oberen Ende anschließenden, nach oben trichterförmig erweiterten Schirmteil besteht. Eine im Schirm angeordnete Lampe gibt stets durch den unteren Schirmteil Licht auf direktem Wege in den zu beleuchtenden Raum. Je weiter die Lampe im Schirm relativ zu ihm nach oben verstellt wird, desto mehr gelangt ein Teil des Lichtstromes der Lampe auch über den oberen Schirmteil gegen die Zimmerdecke und damit auf indirektem Wege in das Zimmer oder den Raum. Aus der DE-Gebrauchsmusterschrift 1 641 917 ist eine Leuchte mit einer Leuchtstofflampe bekannt, welche innerhalb eines im wesentlichen halbkreisförmigen Reflektors bezüglich ihrer örtlichen Lage relativ zum Reflektor verstellt werden kann, um wahlweise eine Tiefenstrahlung oder eine Breitenstrahlung zu erzeugen. Der Lichtstrom gelangt jeweils auf direktem Wege in den zu beleuchtenden Raumbereich. Eine ähnliche Leuchte ist auch aus der AT-B-382 949 bekannt. Aus der DE-Gebrauchsmusterschrift 1 780 697 und der US-PS 4 712 167 sind Leuchten mit in verschiedene Richtung schwenkbaren Lampen bekannt, wobei das Licht in allen Positionen auf direktem Wege in den zu beleuchtenden Raumbereich strömt. Die DE-A-767 759 zeigt eine Leuchte mit einer innerhalb eines ringförmigen Reflektors angeordneten Lampe. Die Lampe kann im Reflektor herumbewegt werden, um dadurch die Richtung des vom Reflektor reflektierten Lichtes zu verändern. Die DE-PS 411 679 zeigt einen Lampenschirm mit einem ausschwenkbaren Schirmteil, wobei eine Fassung für eine Lampe an dem Schirmteil befestigt ist. Dadurch kann die Lampe zusammen mit dem Schirmteil aus dem Schirm herausgeschwenkt werden, so daß die Lampe bei herausgeschwenktem Schirmteil direkt und ungedämpft in den zu beleuchtenden Raum strahlt. Wenn der herausschwenkbare Schirmteil eingeschwenkt ist, befindet sich die Lampe vollständig innerhalb des Lampenschirmes und ihr Licht gelangt wiederum auf direktem Wege, jedoch gedämpft durch das Material des Lampenschirmes, in den zu beleuchtenden Raum.A luminaire for indirect lighting only shows FR-A-25 67 622 (registration no .: 85 10718), which contains a lamp which can be pivoted from a position for indirect lighting behind a reflector, thereby reducing the strength of the Luminaire emerging luminous flux from a maximum value to zero. Furthermore, from DE-U 88 02 509.8 and GB-A-510 448 luminaires with a reflector screen are known, which consists of a downwardly funnel-shaped screen part and a funnel-shaped adjoining at the upper end extended part of the screen. A lamp arranged in the shade always emits light directly into the room to be illuminated through the lower part of the shade. The further the lamp in the shade is moved upwards relative to it, the more a part of the luminous flux of the lamp also reaches the ceiling via the upper shade part and thus indirectly into the room or the room. From DE utility model document 1 641 917 a luminaire with a fluorescent lamp is known, which can be adjusted within an essentially semicircular reflector with respect to its location relative to the reflector in order to generate either a deep radiation or a wide radiation. The luminous flux arrives directly in the room area to be illuminated. A similar lamp is also known from AT-B-382 949. Luminaires with lamps which can be pivoted in different directions are known from DE utility model specification 1,780,697 and US Pat. No. 4,712,167, the light flowing in all positions directly into the area to be illuminated. DE-A-767 759 shows a lamp with a lamp arranged within an annular reflector. The lamp can be moved around in the reflector, thereby changing the direction of the light reflected by the reflector. DE-PS 411 679 shows a lampshade with a pivotable shade part, a socket for a lamp being attached to the shade part. As a result, the lamp can be pivoted out of the screen together with the screen part, so that the lamp shines directly and undamped into the room to be illuminated when the screen part is pivoted out. When the pivotable shade part is swiveled in, the lamp is completely inside the lamp shade and its light in turn reaches it directly, but attenuated by the material of the Lampshade, in the room to be illuminated.

Durch die Erfindung soll die Aufgabe gelöst werden, für die Leuchte der eingangs genannten Art eine einfachere und vielseitiger verwendbarere Konstruktion zu schaffen. Ferner soll durch die Erfindung die Lampe so gestaltet werden, daß sie nicht nur bei Verwendung von Glühlampen, sondern auch bei Verwendung von langen Leuchtstoffröhren zwischen direkter Beleuchtung und indirekter Beleuchtung umschaltbar ist. Dabei soll eine geringe Betätigungskraft und kurze Betätigungsstrecken für die Umschaltung zwischen direkter Beleuchtung und indirekter Beleuchtung erforderlich sein.The object of the invention is to achieve a simpler and more versatile construction for the lamp of the type mentioned at the outset. Furthermore, the invention is to design the lamp so that it can be switched between direct lighting and indirect lighting not only when using incandescent lamps but also when using long fluorescent tubes. A low actuation force and short actuation distances should be required for switching between direct lighting and indirect lighting.

Diese Aufgabe wird gemäß der Erfindung dadurch gelöst, daß zwei in entgegengesetzte Richtungen zeigende Lichtauslässe vorgesehen sind, daß zwischen den beiden Lichtauslässen eine Wand mit einer von den beiden Lichtauslässen je entfernt gelegenen Wandoberfläche vorgesehen ist, welche von dem einen Lichtauslaß abgewandt und dem anderen Lichtauslaß zugewandt ist, daß ein Lichtstrahlweg vom einen Lichtauslaß um ein Ende der Wand herum und über deren Wandoberfläche bis zum anderen Lichtauslaß gebildet ist, daß die Lampe im Lichtstrahlweg angeordnet ist, und daß die Lampe mit ihrer Fassung relativ zum Gehäuse zwischen zwei verschiedenen Orten bewegbar ist, wobei die Lampe über das eine Ende der Wand hinwegbewegbar ist, und wobei sich die Lampe am einen Ort in der Position für direkte Beleuchtung durch den einen Lichtauslaß hindurch und am anderen Ort zwischen der Wandoberfläche und dem anderen Lichtauslaß in der Position für indirekte Beleuchtung durch den anderen Lichtauslaß hindurch befindet.This object is achieved according to the invention in that two light outlets pointing in opposite directions are provided, that between the two light outlets a wall is provided with a wall surface located at a distance from the two light outlets, which is facing away from one light outlet and facing the other light outlet is that a light beam path is formed from one light outlet around one end of the wall and over its wall surface to the other light outlet, that the lamp is arranged in the light beam path, and that the lamp with its holder is movable between two different locations relative to the housing, the lamp being movable over one end of the wall, and the lamp passing through the one light outlet at one location in the position for direct lighting and through the other position between the wall surface and the other light outlet at the position for indirect lighting other li outlet is located.

Weitere Merkmale der Erfindung sind in den Unteransprüchen enthalten.Further features of the invention are contained in the subclaims.

Die Erfindung wird im folgenden mit Bezug auf die Zeichnung beschrieben. Die Zeichnung zeigt
   eine Querschnittsansicht einer bevorzugten Ausführungsform einer Leuchte nach der Erfindung.The invention is described below with reference to the drawing. The drawing shows
a cross-sectional view of a preferred embodiment of a lamp according to the invention.

Die Leuchte nach der Erfindung kann eine Standleuchte, Deckenleuchte oder Wandleuchte sein. Die in der Zeichnung als Beispiel dargestellte Leuchte nach der Erfindung ist eine Standleuchte. Sie enthält einen Ständer oder Träger 2, ein Gehäuse 4, erste und zweite Reflektoren 6 und 8 für direkte Beleuchtung eines zu beleuchtenden Raumbereiches 10, und erste, zweite und dritte Reflektoren 12, 14 und 16 für eine indirekte Beleuchtung des zu beleuchtenden Raumbereiches 10. Der zweite Reflektor 8 für direkte Beleuchtung und die Reflektoren 12, 14 und 16 für indirekte Beleuchtung bestehen zusammen aus einem einzigen Stück. Die beiden Reflektoren 6 und 8 für direkte Beleuchtung sind mit Abstand voneinander angeordnet und erstrecken sich von der Unterfläche 18 des Gehäuses 4 nach oben, wobei sie parabelförmig nach oben konvergierend verlaufen und ihre reflektierenden Oberflächen 7 und 9 einander gegenüberliegen. Die Oberflächen 13, 15 und 17 der Reflektoren 12, 14 und 16 für indirekte Beleuchtung sind nach oben zu einem Lichtauslaß 36 für indirekte Beleuchtung gerichtet. Das in der Zeichnung linke Ende 19 des linken, ersten Reflektors 12 für indirekte Beleuchtung schließt sich an das obere Ende 21 des rechten, zweiten Reflektors 8 für direkte Beleuchtung an. Die beiden Enden 19 und 21 bilden die Spitze eines Winkels zwischen etwa 60° und 120° zwischen den beiden Reflektoren 8 und 12. Der zweite Reflektor 14 für die indirekte Beleuchtung befindet sich zwischen dem ersten Reflektor 12 und dem dritten Reflektor 16 für indirekte Beleuchtung. Alle Reflektoren sind bogenförmig konkav so ausgebildet, daß sie das Licht von Lampen 20, 22 und 24 reflektieren und dabei bündeln. Oberhalb der beiden in der Zeichnung rechts dargestellten zweiten und dritten Reflektoren 14 und 16 für indirekte Beleuchtung befindet sich je eine der Lampen 22 und 24 in je einer im Gehäuse 4 ortsfest angeordneten Fassung 26 und 28. Das Gehäuse 4 hat auf der dem zu beleuchtenden Raumbereich 10 gegenüberliegenden Unterseite 30 eine Öffnung 32 zwischen den beiden Reflektoren 6 und 8 als Lichtauslaß für direkte Beleuchtung. Das Gehäuse 4 hat außerdem auf der Oberseite 34 die Öffnung 36, welche sich als Lichtauslaß für die indirekte Beleuchtung über alle drei nach oben weisenden Reflektoren 12, 14 und 16 für indirekte Beleuchtung erstreckt. Der zweite Reflektor 8 für direkte Beleuchtung erstreckt sich von der unteren Öffnung 32 bis zu dem einen Ende 19 des ersten Reflektors 12 für indirekte Beleuchtung. Der erste Reflektor 6 für direkte Beleuchtung erstreckt sich von der unteren Öffnung 32 nach oben bis über die Enden 19 und 21 der beiden Reflektoren 8 und 12 hinaus. Das Gehäuse 4 ist über einen elektrischen Anschlußkanal 38 für elektrische Leitungen mit dem Träger 2 verbunden. Im Gehäuse 4 sind elektrische Anschlußklemmen 40 und je ein Starter 42 für die Lampen 20, 22 und 24 befestigt. Die Lampen 20, 22 und 24 sind je U-förmig verlaufende Leuchtstoffröhren, deren beide Enden parallel nebeneinander liegen und in die zugehörige Fassung 26, 28 eingesteckt sind. Wegen der Darstellung im Querschnitt ist jede Lampe bzw. Röhre 20, 22 und 24 jeweils nur in Form von zwei Ringen sichtbar.The lamp according to the invention can be a floor lamp, ceiling lamp or wall lamp. The lamp according to the invention shown as an example in the drawing is a floor lamp. It contains a stand or support 2, a housing 4, first and second reflectors 6 and 8 for direct lighting of a room area 10 to be illuminated, and first, second and third reflectors 12, 14 and 16 for indirect lighting of the room area 10 to be illuminated. The second reflector 8 for direct lighting and the reflectors 12, 14 and 16 for indirect lighting consist of a single piece. The two reflectors 6 and 8 for direct lighting are arranged at a distance from one another and extend upwards from the lower surface 18 of the housing 4, whereby they converge in a parabolic shape and their reflecting surfaces 7 and 9 lie opposite one another. The surfaces 13, 15 and 17 of the reflectors 12, 14 and 16 for indirect lighting are directed upwards to a light outlet 36 for indirect lighting. The left end 19 of the left, first reflector 12 for indirect lighting in the drawing adjoins the upper end 21 of the right, second reflector 8 for direct lighting. The two ends 19 and 21 form the apex of an angle between approximately 60 ° and 120 ° between the two reflectors 8 and 12. The second reflector 14 for indirect lighting is located between the first reflector 12 and the third reflector 16 for indirect lighting. All reflectors are arcuate concave so that they reflect the light from lamps 20, 22 and 24 and focus. Above the two second and third reflectors 14 and 16 for indirect lighting shown on the right in the drawing, there is one of the lamps 22 and 24 in each case in a holder 26 and 28 arranged in a fixed manner in the housing 4. The housing 4 has the area to be illuminated 10 opposite bottom 30 an opening 32 between the two reflectors 6 and 8 as a light outlet for direct lighting. The housing 4 also has on the top 34 the opening 36 which extends as a light outlet for indirect lighting over all three upward-facing reflectors 12, 14 and 16 for indirect lighting. The second reflector 8 for direct lighting extends from the lower opening 32 to one end 19 of the first reflector 12 for indirect lighting. The first reflector 6 for direct lighting extends from the lower opening 32 upwards beyond the ends 19 and 21 of the two reflectors 8 and 12. The housing 4 is connected to the carrier 2 via an electrical connection channel 38 for electrical lines. In the housing 4 electrical terminals 40 and a starter 42 for the lamps 20, 22 and 24 are attached. The lamps 20, 22 and 24 are each U-shaped fluorescent tubes, the two ends of which lie parallel next to one another and are inserted into the associated holder 26, 28. Because of the cross-sectional representation, each lamp or tube 20, 22 and 24 is only visible in the form of two rings.

Die Fassung 44, welche die Lampe 20 trägt und mit Strom versorgt, ist nicht direkt am Gehäuse 4, sondern ortsfest an einem Einstellelement 46 mittels Schrauben 48 befestigt. Das Einstellelement 46 hat die Form eines blattartigen Hebels, der über einen Lagerbolzen 50 schwenkbar an einer Stirnwand 52 des Gehäuses 4 befestigt ist. Das Einstellelement 46 hat auf seiner von der Fassung 44 abgewandten Seite des Lagerbolzens 50 ein Handbetätigungselement 54, welches aus der Unterseite 30 des Gehäuses 4 herausragt. Die in der Zeichnung mit ausgezogenen Linien dargestellte Position des Einstellelementes 46 und der von ihm getragenen Fassung 44 mit der Lampe 20 ist die Position für direkte Beleuchtung, bei welcher das Licht dieser Lampe 20 entsprechend den Pfeilen 56 direkt in den zu beleuchtenden Raumbereich 10 gestrahlt wird, reflektiert und gebündelt durch die Reflektoren 6 und 8 für die direkte Beleuchtung. Ein Teil des Lichtstromes dieser Lampe 20 gelangt dabei über die obere Öffnung 36 des Gehäuses 4 auch auf indirektem Wege in den zu beleuchtenden Raumbereich 10, reflektiert und gebündelt durch den für die indirekte Beleuchtung nach oben gerichteten Reflektor 12. Dabei liegt ein Anschlag 58 des Handbetätigungselementes 54 an der Unterseite 30 des Gehäuses 4 an und hält das Einstellelement 46 mit seiner Fassung 44 in der in der Zeichnung in ausgezogenen Linien dargestellten Stellung für direkte Beleuchtung. Bei dieser Position für direkte Beleuchtung befindet sich die Lampe 20 und ihre Fassung 44 an einem Ort, der zwischen den beiden Lichtauslässen oder Öffnungen 32 und 36 liegt, wobei die Lampe 20 diesen Öffnungen 32 und 36 je mit Abstand gegenüberliegt, so daß ihr Licht direkt ohne Umlenkung zu diesen Öffnungen gelangt.The socket 44, which carries the lamp 20 and supplies it with electricity, is not fixed directly to the housing 4, but is fixed in place on an adjusting element 46 by means of screws 48. The adjusting element 46 has the shape of a leaf-like lever which is pivotally attached to an end wall 52 of the housing 4 via a bearing pin 50. The adjusting element 46 has on its side of the bearing bolt 50 facing away from the socket 44 a manual actuating element 54 which protrudes from the underside 30 of the housing 4. The position of the adjusting element 46 shown in the drawing with the solid lines and the holder 44 carried by it with the lamp 20 is the position for direct lighting, in which the light of this lamp 20 is radiated directly into the area 10 to be illuminated in accordance with the arrows 56 , reflected and bundled by reflectors 6 and 8 for direct lighting. Part of the luminous flux of this lamp 20 also reaches the room area 10 to be illuminated indirectly via the upper opening 36 of the housing 4, reflected and bundled by the reflector 12 directed upwards for indirect lighting. There is a stop 58 of the manual control element 54 on the underside 30 of the housing 4 and holds the setting element 46 with its holder 44 in the position shown in the drawing in solid lines for direct lighting. In this position for direct lighting, the lamp 20 and its socket 44 are located at a location between the two light outlets or openings 32 and 36, the lamp 20 being spaced from these openings 32 and 36 so that their light is direct reaches these openings without redirection.

Das Einstellelement 46 kann mit seinem Handbetätigungselement 54 in die in der Zeichnung strichpunktiert dargestellte Stellung geschwenkt werden, in welcher die vom Einstellelement 46 getragene Lampe 20 mit der Fassung 44 sich vollständig über dem in der Zeichnung links dargestellten ersten Reflektor 12 für indirekte Beleuchtung an einem Ort zwischen diesem ersten Reflektor 12 und der oberen Öffnung 36 befindet. In dieser Position für indirekte Beleuchtung wird das Licht der Lampe 20 nur von dem unter ihr befindlichen ersten Reflektor 12 für indirekte Beleuchtung nach oben über die Öffnung 36 des Gehäuses 4, und damit auf einem indirekten Lichtstrahlweg um das Gehäuse 4 herum, in den zu beleuchtenden Raumbereich 10 abgegeben. Bei dieser in strichpunktierten Linien dargestellten Position der Lampe 20 gelangt von ihr nur ein kleinerer Lichtanteil über den Reflektor 6 und dadurch ebenfalls in indirekter Weise durch die untere Öffnung 32 des Gehäuses 4 in den zu beleuchtenden Raumbereich 10. Bei dieser Position für indirekte Beleuchtung liegt ein anderer Anschlag 60 des Handbetätigungselementes 54 an der Unterseite 30 des Gehäuses 4 an und hält die Lampe 20 in dieser Position für indirekte Beleuchtung. Der Wegabschnitt für indirekte Beleuchtung ist in der Zeichnung durch Pfeile 62 schematisch dargetellt.The adjusting element 46 can be pivoted with its manual actuating element 54 into the position shown in broken lines in the drawing, in which the lamp 20 carried by the adjusting element 46 with the holder 44 is completely above that in the drawing The first reflector 12 for indirect lighting shown on the left is located at a location between this first reflector 12 and the upper opening 36. In this position for indirect lighting, the light of the lamp 20 is directed only upward from the first reflector 12 for indirect lighting located below it through the opening 36 of the housing 4, and thus on an indirect light beam path around the housing 4, into the ones to be illuminated Room area 10 delivered. In this position of the lamp 20, shown in dash-dotted lines, only a small proportion of the light passes from it via the reflector 6 and thus also indirectly through the lower opening 32 of the housing 4 into the room area 10 to be illuminated. This position for indirect lighting another stop 60 of the manual control element 54 on the underside 30 of the housing 4 and holds the lamp 20 in this position for indirect lighting. The path section for indirect lighting is shown schematically in the drawing by arrows 62.

Wie die Zeichnung zeigt, bildet das linke Ende 19 des ersten Reflektors 12 ein Eck oder eine Stufe, um welche herum die Lampe 20 mit ihrer Fassung 44 zischen den genannten beiden Orten schwenkbar ist.As the drawing shows, the left end 19 of the first reflector 12 forms a corner or a step, around which the lamp 20 with its holder 44 can be pivoted between the two locations mentioned.

Die in vorgenannter Weise verschwenkbaren Teile sind in beiden Positionen mit den gleichen Bezugszahlen versehen, haben jedoch in der strichpunktiert gezeigten Position für indirekte Beleuchtung die Zusatzzahl 2.The parts which can be pivoted in the aforementioned manner are provided with the same reference numbers in both positions, but have the additional number 2 in the position shown in dash-dotted lines for indirect lighting.

Zusätzlich oder anstelle des Handbetätigungselementes 54 kann ein elektromagnetischer Antrieb 66 zur Verstellung des Einstellelementes 46 vorgesehen sein, welches die Fassung 44 mit der Lampe 20 trägt. Als Beispiel zeigt die Zeichnung als elektromagnetischen Antrieb 66 einen an der Stirnwand 52 des Gehäuses 4 befestigten Elektromagneten 68 mit einem Stößel 70, der über ein Gelenk 72 schwenkbar mit dem Einstellelement 48 verbunden ist. Durch wechselweise Erregung des Elektromagnetn 68 kann über den Stößel 70 das Einstellelement 46 mit der Fassung 44 und der Lampe 20 wahlweise in die Position für direkte Beleuchtung (ausgezogene Linien) oder in die Position für indirekte Beleuchtung (strichpunktierte Linien) verstellt werden.In addition to or instead of the manual control element 54, an electromagnetic drive 66 can be provided for adjusting the setting element 46, which is the holder 44 carries with the lamp 20. As an example, the drawing shows as an electromagnetic drive 66 an electromagnet 68 fastened to the end wall 52 of the housing 4 with a plunger 70 which is pivotally connected to the adjusting element 48 via a joint 72. By alternately energizing the electromagnet 68, the setting element 46 with the holder 44 and the lamp 20 can be adjusted via the plunger 70 either in the position for direct lighting (solid lines) or in the position for indirect lighting (dash-dotted lines).

Die beiden Reflektoren 6 und 8 für direkte Beleuchtung und der benachbarte Reflektor 12 für indirekte Beleuchtung bilden zwischen sich einen Lichtstrahlweg 76, dessen voneinander abgewandte Enden durch die untere Öffnung 32 und die obere Öffnung 36 des Gehäuses 4 gebildet sind. Die Lampe 20 ist mit der Fassung 44 innerhalb des Lichtstrahlweges 76 zwischen den beiden Orten und dadurch zwischen den beiden Positionen für direkte Beleuchtung und indirekte Beleuchtung um das linke Ende 19 des ersten Reflektors 12 herum verstellbar. Der Abschnitt 77 des Lichtstrahlweges 76, welcher zwischen den beiden Reflektoren 6 und 8 und der unteren Öffnung 32 für direkte Beleuchtung liegt, erstreckt sich ungefähr rechtwinkelig zu dem Abschnitt 79 des Lichtstrahlweges 76, welcher zwischen den Reflektoren 12, 14 und 16 und der oberen Öffnung 36 für indirekte Beleuchtung liegt.The two reflectors 6 and 8 for direct lighting and the neighboring reflector 12 for indirect lighting form between them a light beam path 76, the ends of which are facing away from one another and are formed by the lower opening 32 and the upper opening 36 of the housing 4. The lamp 20 can be adjusted with the socket 44 within the light beam path 76 between the two locations and thereby between the two positions for direct lighting and indirect lighting around the left end 19 of the first reflector 12. The section 77 of the light beam path 76, which lies between the two reflectors 6 and 8 and the lower opening 32 for direct illumination, extends approximately at right angles to the section 79 of the light beam path 76, which is between the reflectors 12, 14 and 16 and the upper opening 36 for indirect lighting.

Die Erfindung kann auch in verschiedenen anderen Ausführungsformen ausgeführt werden. Beispielsweise kann eine Leuchte mehrere Lampen beinhalten, die wahlweise zwischen einer Position für direkte Beleuchtung und einer Position für indirekte Beleuchtung verstellbar sind. Die Fassung 44 für die verstellbare Lampe 20 kann statt von einem schwenkbaren Element 46 auch von einem drehbaren Einstellelement getragen werden. Eine bevorzugte Ausführungsform besteht darin, daß die Fassung 44 mit der Lampe 20 durch einen Motor oder einen von Hand betätigbaren Drehknopf, welcher innerhalb oder außerhalb einer stirnseitigen Wand des Gehäuses 4 angeordnet ist, um eine Drehachse schwenkbar ist. Diese Drehachse kann durch den Lagerbolzen 50 oder durch eine Achse gebildet sein. Die Fassung 44 kann auf der Drehachse relativ zu ihr drehbar angeordnet oder mit ihr drehfest verbunden sein. Eine andere mögliche Ausführungsform besteht darin, daß die Verstellung zwischen den beiden Orten und Positionen nicht durch eine Schwenk- oder Drehbewegung, sondern durch eine lineare Verschiebung innerhalb des Gehäuses 4 erfolgt. Selbstverständlich kann die Leuchte in den Öffnungen 32 und 36 auch Blenden oder lichtdurchlässige Abdeckungen enthalten.The invention can be carried out in various other embodiments. For example, a luminaire can contain several lamps, which are selectively adjustable between a position for direct lighting and a position for indirect lighting. The socket 44 for the adjustable lamp 20 can instead of a pivotable element 46 can also be carried by a rotatable adjusting element. A preferred embodiment consists in that the socket 44 with the lamp 20 can be pivoted about an axis of rotation by a motor or a manually operated rotary knob which is arranged inside or outside a front wall of the housing 4. This axis of rotation can be formed by the bearing pin 50 or by an axis. The socket 44 can be rotatably arranged on the axis of rotation relative to it or can be connected to it in a rotationally fixed manner. Another possible embodiment is that the adjustment between the two locations and positions is not carried out by a pivoting or rotating movement, but by a linear displacement within the housing 4. Of course, the light in the openings 32 and 36 can also contain panels or translucent covers.

Claims (9)

  1. A lighting fixture, which can be switched between direct illumination and indirect illumination, having a housing (4), having at least one lampholder (44), connected thereto, for at least one lamp (20), and having an adjusting device (46, 50) to move the lampholder (44) with the lamp (20) relative to the housing (4) between a position for direct illumination and a position for indirect illumination,
    characterized in that two light outlets (32, 36) pointing in opposite directions are provided,
    in that between the two light outlets (32, 36) is provided a wall (12) having a wall surface (13) positioned at a distance from the two light outlets respectively, which is turned away from one light outlet (32) and turned towards the other light outlet (36),
    in that a light beam path (76) from one light outlet (32) is formed around one end (19) of the wall (12) and over its wall surface (13) to the other light outlet (36),
    in that the lamp (20) is disposed in the light beam path (76),
    and in that the lamp (20) with its lampholder (44) can be moved relative to the housing (4) between two different locations, whereby the lamp (20) can be moved away over one end (19) of the wall (12), and whereby the lamp (20) is located at one location in the position for direct illumination through one light outlet (32) and at the other location between the wall surface (13) and the other light outlet (36) in the position for indirect illumination through the other light outlet (36).
  2. A lighting fixture according to Claim 1,
    characterized in that the lampholder (44) is swivellably (46, 50) attached to the housing (4).
  3. A lighting fixture according to Claim 1 or 2,
    characterized in that the wall (12) is formed by a reflector, the reflective surface (13) of which points towards the other light outlet (36) for indirect illumination.
  4. A lighting fixture according to one of Claims 1 to 3,
    characterized in that the section (77) of the light beam path (76), which extends from one end (19) of the wall (12) to a light outlet (32) for direct illumination, is limited by a reflector (6) on its side spaced opposite this end (19) of the wall (12).
  5. A lighting fixture according to one of Claims 1 to 4,
    characterized in that the section (77) of the light beam path (76), which extends from one end (19) of the wall (12) to the light outlet (32) for direct illumination, is limited by a reflector (8), which extends from one end (19) of the wall (12) to the light outlet (32) for direct illumination.
  6. A lighting fixture according to Claim 4 and 5,
    characterized in that the two reflectors (6, 8) are concavely curved and are disposed diverging away from one another to a light outlet (32) for direct illumination.
  7. A lighting fixture according to one of Claims 1 to 6,
    characterized in that the reflector forming the wall (12) is concavely curved.
  8. A lighting fixture according to one of Claims 3 to 7,
    characterized in that next to the reflector (12) forming the wall is disposed at least one further reflector (14, 16), the surface (15, 17) of which also points towards the other light outlet (36) for indirect illumination,
    and in that in front of the further reflector (14, 16) is disposed at least one lamp (22, 24) between this reflector and the light outlet (36) for indirect illumination, which is supported by a lampholder (26, 28) securely attached to the housing (4).
  9. A lighting fixture according to one of Claims 1 to 7,
    characterised in that the reflectors (8, 12, 14, 16) disposed on one side of the light beam path (76) together form a single-piece component.
EP89110584A 1988-06-23 1989-06-12 Lighting fixture Expired - Lifetime EP0347700B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89110584T ATE98352T1 (en) 1988-06-23 1989-06-12 LAMP.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3821260A DE3821260A1 (en) 1988-06-23 1988-06-23 LAMP
DE3821260 1988-06-23

Publications (3)

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EP0347700A2 EP0347700A2 (en) 1989-12-27
EP0347700A3 EP0347700A3 (en) 1990-05-30
EP0347700B1 true EP0347700B1 (en) 1993-12-08

Family

ID=6357115

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89110584A Expired - Lifetime EP0347700B1 (en) 1988-06-23 1989-06-12 Lighting fixture

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EP (1) EP0347700B1 (en)
AT (1) ATE98352T1 (en)
DE (2) DE3821260A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5848833A (en) * 1995-11-17 1998-12-15 Linear Lighting Corp. Bidirectional lighting system
DE29608354U1 (en) * 1996-05-08 1996-06-27 Trilux Lenze Gmbh & Co Kg Workplace lamp
DE10321282B4 (en) * 2003-05-13 2010-11-25 Trilux Gmbh & Co. Kg wall light

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE411679C (en) * 1925-03-30 Daniel Schmitz Lampshade for electric lamps
US1908131A (en) * 1931-05-11 1933-05-09 Miller Co Adjustable socket for lighting fixtures
GB510448A (en) * 1938-02-01 1939-08-01 Gerard De Witt Improvements in or relating to reading and working lamps
DE767759C (en) * 1938-05-25 1953-05-18 Siemens Schuckertwerke A G Electric mirror light
DE1641917U (en) * 1952-05-24 1952-08-07 Vulkan Ag FLUORESCENT LAMP LAMP WITH LIGHT POINT ADJUSTMENT DEVICE.
DE1780697U (en) * 1958-10-25 1959-01-08 Oculus Optikgeraete G M B H LAMP SOCKET FOR THE LIGHT BULBS OF OPTICAL DEVICES.
US3829679A (en) * 1973-08-06 1974-08-13 Chemetron Corp Lamp head assembly
DE3413354A1 (en) * 1983-04-08 1985-01-10 Esto Leuchtenfabrik Gesellschaft mbH, Velden, Kärnten Lumina
DE3524818A1 (en) * 1984-07-13 1986-01-16 Quartzcolor Ianiro S.p.A., Rom/Roma HEADLIGHT FOR DIFFUSE LIGHTING
AT382949B (en) * 1986-01-23 1987-04-27 Zumtobel Ag Fluorescent lamp luminaire
US4712167A (en) * 1986-06-30 1987-12-08 Mycro Group Co. Remote control, moveable lighting system
DE8802509U1 (en) * 1988-02-26 1988-04-07 Zumtobel Ag, Dornbirn, At

Also Published As

Publication number Publication date
EP0347700A3 (en) 1990-05-30
EP0347700A2 (en) 1989-12-27
DE3821260A1 (en) 1989-12-28
ATE98352T1 (en) 1993-12-15
DE58906346D1 (en) 1994-01-20

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