EP2132478B1 - Light fixture, in particular a standard lamp or a table lamp, with an extendable light head - Google Patents

Light fixture, in particular a standard lamp or a table lamp, with an extendable light head Download PDF

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Publication number
EP2132478B1
EP2132478B1 EP08715839A EP08715839A EP2132478B1 EP 2132478 B1 EP2132478 B1 EP 2132478B1 EP 08715839 A EP08715839 A EP 08715839A EP 08715839 A EP08715839 A EP 08715839A EP 2132478 B1 EP2132478 B1 EP 2132478B1
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EP
European Patent Office
Prior art keywords
light
light head
light fixture
lamp
fixture according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP08715839A
Other languages
German (de)
French (fr)
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EP2132478A1 (en
Inventor
Jörg Tragatschnig
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZUMTOBEL LIGHTING GmbH
Original Assignee
Zumtobel Lighting GmbH Austria
Zumtobel Lighting GmbH Germany
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Filing date
Publication date
Application filed by Zumtobel Lighting GmbH Austria, Zumtobel Lighting GmbH Germany filed Critical Zumtobel Lighting GmbH Austria
Publication of EP2132478A1 publication Critical patent/EP2132478A1/en
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Publication of EP2132478B1 publication Critical patent/EP2132478B1/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S6/00—Lighting devices intended to be free-standing
    • F21S6/002—Table lamps, e.g. for ambient lighting
    • 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
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/14—Adjustable mountings
    • F21V21/22—Adjustable mountings telescopic
    • 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
    • F21V27/00—Cable-stowing arrangements structurally associated with lighting devices, e.g. reels 
    • 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
    • F21V14/04—Controlling the distribution of the light emitted by adjustment of elements by movement of reflectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the present invention relates to a lamp according to the preamble of claim 1, which has a relative to a support arm extendable light head for receiving the light source and extending to the light head power supply line.
  • the present invention relates to a floor or table lamp.
  • Table lamps are increasingly being used in office workplaces because they offer the possibility to illuminate individual workplaces individually.
  • illumination can be achieved in the desired manner by a suitable arrangement of the lamp on the work table, the lighting options can be further improved by the fact that certain settings for the lamp exist.
  • the light head arranged on a carrier arm is adjustable, for example, rotatable or pivotable in order to adapt the illumination to individual wishes.
  • lights are known from the prior art, which open a further adjustment possibility in that the light head is mounted extendable relative to a support arm. Such lights are, for example, in the DE 72 03 745 U or the DE 91 14 561 U described.
  • the first-mentioned utility model describes, for example, a luminaire in which the support arm can be telescopically pulled out with the light head arranged at the end in order to be able to adjust the overall length of the support arm.
  • an arcuate support arm is provided, in which an elongate lighthead is guided in such a way that it can be extended relative to the support arm.
  • a power supply line for powering the light sources is provided, which is guided on the outside of the support arms along.
  • a table lamp with a relative to a support arm extendable light head known.
  • a power supply line extends to the lighthead and is partially guided by the carrier arm.
  • a feed mechanism for receiving the power supply line is arranged.
  • the present invention has for its object to provide a novel lamp, which is improved in terms of their external appearance again compared to the known constructions and at the same time offers the opportunity to make various settings.
  • the solution according to the invention again relates to a luminaire in which a light head can be pulled out with respect to a support arm in order to enable adjustment of the luminaire.
  • This is inventively provided to guide the power supply line through the support arm to improve the appearance of the light.
  • a feed mechanism for defined recording of the power supply line is further arranged within the support arm and / or the light head.
  • a luminaire in particular a floor or table lamp with a pull-out towards a support arm light head for receiving a light source and extending to the light head power supply line
  • the lamp is characterized in that the power supply line at least partially, preferably completely, by the support arm is guided and in the support arm and / or the light head, a feed mechanism for the defined recording of the power supply line is arranged.
  • the inventive solution ensures that the power supply line no longer affects the appearance of the lamp.
  • the collection mechanism is responsible, which ensures that in all positions of the lighthead, the power supply line is recorded in a defined manner.
  • the light head is telescopically extendable relative to the support arm, wherein both a linear extension and a curved extension could be provided.
  • the feed mechanism which will be described in more detail below, preferably comprises a roller deflection, wherein the power supply line is designed as a ribbon cable.
  • the light source is preferably formed by one or more LEDs.
  • the lamp has an adjustable reflector assembly. This can be formed in particular by two arranged on both sides of the light source, pivotally mounted reflectors, in which case an adjustment device for adjusting the two reflectors is then still provided.
  • the light source and / or the reflectors are in this case preferably coupled to a heat sink
  • the operation of the lamp according to the invention can preferably be made by located on the light head controls, these controls are provided in particular for adjusting the light head relative to the support arm, but at the same time also enable switching on and off or adjusting the brightness.
  • an operating element is designed as a rotatable pin, which may additionally also have independent lighting to further improve the findability of the lamp.
  • inventive lamp is a so-called.
  • Table lamp which is intended in particular for the illumination of desk workstations It should be noted, however, that the invention is not limited to such table lamps. It can also be used, for example, in floor lamps. Even with wall or ceiling lights, in which a support arm is attached directly to a wall and / or ceiling and the light head is designed to be adjustable relative to the support arm, the invention could be used.
  • Table lamp 1 shown initially has a lamp base 2 with electrical connection means 3 and a extending from the lamp stand 2 upwards support arm 5, which is designed angled so that a first part 5a extends vertically from the lamp base 2 upwards and a second part 5b is aligned horizontally.
  • the support arm 5, to be precise the horizontal part 5b thereof, serves to support a lighthead 10 which is described in more detail below and which has an oblong shape and at its front end the light sources on the one hand and an operating element 30 via which the luminaire 1 can be operated are. This is to be understood that both - as described below - the position of the light head 10 can be changed and the light sources can be switched on and off or adjusted in their brightness.
  • a first basic adjustment for the lamp 1 according to the invention is that the light head 10 as in Fig. 1 shown in the direction of arrow relative to the support arm 5 can be adjusted.
  • the horizontal portion 5b of the support arm 5 is designed as an upwardly open U-shaped rail, in which the light head 10 is accommodated telescopically.
  • a longitudinal adjustment of the light head 10 is now made possible by the fact that in the rear region of the light head 10 three laterally projecting beyond the housing 11 of the light head 10 rollers 12 are arranged. These rollers 12 engage in guideways 6, which are formed on the inner sides of the side walls 7 of the support arm 5.
  • the underside of the light head 10 is in Fig. 3 shown, wherein this representation is removable, that in the front region of the light head 10, the light sources are arranged.
  • the light emitted by the LEDs is preferably emitted asymmetrically, since such lights are usually placed on the opposite side of the table from the worker and should illuminate a particular work area of the table.
  • 15 channel reflectors 16 are arranged on both sides of the LEDs, which are pivotally mounted. Via a dial 17, both channel reflectors 16 can be selectively pivoted in different directions in order to influence the light output. This flexibility ensures that the lamp 1 can be placed either on different sides of the working surface to be illuminated.
  • FIG Fig. 4 shows the light head 10 without the outer casing 11.
  • the already mentioned guide rollers 12 are arranged, while located at the front end of the lighting module 18 with the LEDs and the reflectors.
  • a control device 19 coupled to the control element 30 is provided, via which the control of the lighting module 18 is performed.
  • Another essential component of the light head 10 is a generally designated by the reference numeral 20 feed mechanism, which serves for the defined guidance and receiving a power supply line, via which the power supply of the lighting module 18 takes place.
  • the object of this intake mechanism 20 is to receive or guide the power supply line in any position of the light head 10 such that no unwanted loops of the power supply cables result, which could lead to an impairment of either the appearance of the light 1 or the adjustability of the light head 10.
  • the structure and the special operation of the Einzugsmechanismusses 20 will be described below with reference to Fig. 4 and 5 be explained in more detail.
  • the power supply of the LED module 18 takes place in that first a power supply line is guided through the support arm 5 to its front end. Here takes place at the point A via an opening O (which in Fig. 3 It can be seen) in the bottom of the light head 10, a connection with a ribbon cable 21, which acts on the one hand on the front end of the support arm 5 and on the other hand connected to its front end with power supply wires 22, which lead to the lighting module 18.
  • the ribbon cable 21 has a length which ensures a connection from the support arm 5 to the cables 22 in any position of the light head 10.
  • the ribbon cable 12 is mounted on the feed mechanism 20 such that no loose loops occur as soon as the light head 10 is moved relative to the support arm 5.
  • This feed mechanism 20 has as central elements four guide rollers 22 to 25, around which the ribbon cable 21 is looped according to the representation. While the two rear guide rollers 22 and 23 are fixedly arranged in the housing of the light head 11, the two front guide rollers 24 and 25 are fastened together on a carriage-like holder 26, which holder can slide in the longitudinal direction of the light head 10. Via a tension spring 27, the guide member 26 is further connected to a bracket 28 for the cable 22.
  • the Fig. 4 and 5 show here the arrangement of the guide rollers 22 to 25 with the light head 10 pulled out.
  • the light head 10 is adjusted relative to the support arm 5, for example. Further inserted into the support arm 5, this has the consequence that the light head housing is pushed over the front contacting end 21 a of the ribbon cable 21 to the rear.
  • the cable 21 rolls over the various guide rollers 22 to 25 and through the lower opening in the light head 10 from such that it is guided along the underside of the light head 10 along.
  • the tracking of the ribbon cable 21 is thereby made possible that the carriage 26 is pulled with the two front guide rollers 24 and 25 in the direction of the rear guide rollers 22 and 23, whereby a length compensation is made possible.
  • the ribbon cable 21 is guided in a defined manner over the guide rollers 22 to 25, so that no unwanted loops occur.
  • the tension spring 27 that the ribbon cable 21 is basically put under train.
  • this special feed mechanism 20 can thus be an adjustment of the light head 10, while ensuring that the power supply line for the lamp is generally taken in a defined manner in the various housing parts of the lamp, so that the appearance of the lamp is not adversely affected.
  • Fig. 6 finally shows a sectional view of the front region of the light head 10, wherein on the one hand the LEDs 15 and on the other hand arranged on both sides of the LEDs 15 channel reflectors 16 can be seen. These can - as already mentioned - be adjusted or pivoted together via the adjusting wheel 17, so that a light output can be adjusted in the desired direction.
  • the lighting module is in this case coupled to a heat sink 31 in order to dissipate the heat.
  • the operation of the lamp 1 via the pin 30, which initially represents an attack element, with the aid of the light head 10 can be moved relative to the support arm 5.
  • the pin 30 is also an operating element for switching the lamp 1 on and off, which is done by rotating the pin 30.
  • the brightness of the LEDs 15 can be adjusted by means of a change in the rotational position of the pin 30.
  • the pivot pin 30 itself - for example, by means of another LED - is illuminated to allow locating the lamp.
  • the control electronics for the light sources is further preferably designed such that in a position of the light head 10, in which the light sources are covered by the support arm 5, a forced shutdown takes place.
  • a lamp which offers a variety of settings, while ensuring at the same time by an appropriate recording of the cable or power supply lines that in any state of the lamp whose appearance is not affected.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)

Abstract

The invention relates to a light fixture (1), in particular a standard lamp or a table lamp, with a light head (10) which can be extended with respect to a carrier arm (5) and which accommodates a light source (15), and with a power supply lead (21) which extends up to the light head (10), wherein the power supply lead (21) is passed at least partially through the carrier arm (5), and a retraction mechanism (20), for the defined accommodation of the power supply lead (21), is disposed in the carrier arm (5) and/or in the light head (10).

Description

Die vorliegende Erfindung betrifft eine Leuchte gemäß dem Oberbegriff des Anspruchs 1, welche einen gegenüber einem Trägerarm ausziehbaren Lichtkopf zur Aufnahme der Lichtquelle sowie eine sich bis zum Lichtkopf erstreckende Stromversorgungsleitung aufweist. Insbesondere betrifft die vorliegende Erfindung eine Steh- bzw. Tischleuchte.The present invention relates to a lamp according to the preamble of claim 1, which has a relative to a support arm extendable light head for receiving the light source and extending to the light head power supply line. In particular, the present invention relates to a floor or table lamp.

Tischleuchten finden bei Büroarbeitsplätzen zunehmend Verwendung, da sie die Möglichkeit bieten, einzelne Arbeitsplätze individuell auszuleuchten. Das sie verhältnismäßig wenig Platz beanspruchen, kann durch eine geeignete Anordnung der Leuchte auf dem Arbeitstisch eine Ausleuchtung in gewünschter Weise erzielt werden, wobei die Beleuchtungsmöglichkeiten zusätzlich dadurch verbessert werden können, dass gewisse Einstellmöglichkeiten für die Leuchte bestehen. So ist es bspw. bekannt, den an einem Trägerarm angeordneten Lichtkopf verstellbar, bspw. dreh- oder verschwenkbar auszugestalten, um die Ausleuchtung an individuelle Wünsche anzupassen.Table lamps are increasingly being used in office workplaces because they offer the possibility to illuminate individual workplaces individually. The fact that they require relatively little space, illumination can be achieved in the desired manner by a suitable arrangement of the lamp on the work table, the lighting options can be further improved by the fact that certain settings for the lamp exist. Thus, it is known, for example, that the light head arranged on a carrier arm is adjustable, for example, rotatable or pivotable in order to adapt the illumination to individual wishes.

Aus dem Stand der Technik sind ferner Leuchten bekannt, welche eine weitere Einstellmöglichkeit dadurch eröffnen, dass der Lichtkopf gegenüber einem Trägerarm ausziehbar gelagert ist. Derartige Leuchten sind bspw. in der DE 72 03 745 U oder der DE 91 14 561 U beschrieben. Die erstgenannte Gebrauchsmusterschrift beschreibt bspw. eine Leuchte, bei der der Trägerarm mit dem endseitig angeordneten Lichtkopf teleskopisch ausziehbar ist, um die Gesamtlänge des Trägerarms einstellen zu können. Bei der DE 91 14 561 U hingegen ist ein bogenförmiger Trägerarm vorgesehen, in dem ein länglicher Lichtkopf derart geführt ist, dass dieser gegenüber dem Trägerarm ausgezogen werden kann. In beiden Fällen ist eine Stromversorgungsleitung zur Stromversorgung der Lichtquellen vorgesehen, wobei diese an der Außenseite der Trägerarme entlang geführt ist.Furthermore, lights are known from the prior art, which open a further adjustment possibility in that the light head is mounted extendable relative to a support arm. Such lights are, for example, in the DE 72 03 745 U or the DE 91 14 561 U described. The first-mentioned utility model describes, for example, a luminaire in which the support arm can be telescopically pulled out with the light head arranged at the end in order to be able to adjust the overall length of the support arm. In the DE 91 14 561 U In contrast, an arcuate support arm is provided, in which an elongate lighthead is guided in such a way that it can be extended relative to the support arm. In both cases, a power supply line for powering the light sources is provided, which is guided on the outside of the support arms along.

Aus der US 2,345,393 ist eine Tischleuchte mit einem gegenüber einem Trägerarm ausziehbaren Lichtkopf bekannt. Eine Stromversorgungsleitung erstreckt sich bis zum Lichtkopf und ist teilweise durch den Trägerarm geführt. In dem Trägerarm ist ein Einzugmechanismus zur Aufnahme der Stromversorgungsleitung angeordnet.From the US 2,345,393 is a table lamp with a relative to a support arm extendable light head known. A power supply line extends to the lighthead and is partially guided by the carrier arm. In the support arm, a feed mechanism for receiving the power supply line is arranged.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, eine neuartige Leuchte anzugeben, welche hinsichtlich ihres äußeren Erscheinungsbildes nochmals gegenüber den bekannten Konstruktionen verbessert ist und gleichzeitig die Möglichkeit bietet, verschiedenste Einstellungen vorzunehmen.The present invention has for its object to provide a novel lamp, which is improved in terms of their external appearance again compared to the known constructions and at the same time offers the opportunity to make various settings.

Die Aufgabe wird durch eine Leuchte mit den Merkmalen des Anspruchs 1 gelöst. Vorteilhafte Weiterbildungen der Erfindung sind Gegenstand der abhängigen Ansprüche.The object is achieved by a luminaire with the features of claim 1. Advantageous developments of the invention are the subject of the dependent claims.

Die erfindungsgemäße Lösung betrifft wiederum eine Leuchte, bei der ein Lichtkopf gegenüber einem Trägerarm ausziehbar ist, um eine Einstellung der Leuchte zu ermöglichen. Hierbei ist erfindungsgemäß vorgesehen, die Stromversorgungsleitung durch den Trägerarm zu führen, um das Erscheinungsbild der Leuchte zu verbessern. Um dabei trotz allem die Möglichkeit der Verstellung des Lichtkopfs gegenüber dem Trägerarm zu bieten, ist ferner innerhalb des Trägerarms und/oder des Lichtkopf ein Einzugmechanismus zur definierten Aufnahme der Stromversorgungsleitung angeordnet.The solution according to the invention again relates to a luminaire in which a light head can be pulled out with respect to a support arm in order to enable adjustment of the luminaire. This is inventively provided to guide the power supply line through the support arm to improve the appearance of the light. In order to still offer the possibility of adjustment of the light head relative to the support arm, a feed mechanism for defined recording of the power supply line is further arranged within the support arm and / or the light head.

Erfindungsgemäß wird dementsprechend eine Leuchte, insbesondere eine Steh- oder Tischleuchte mit einem gegenüber einem Trägerarm ausziehbaren Lichtkopf zur Aufnahme einer Lichtquelle sowie einer sich bis zum Lichtkopf erstreckenden Stromversorgungsleitung vorgeschlagen, wobei die Leuchte dadurch gekennzeichnet ist, dass die Stromversorgungsleitung zumindest teilweise, vorzugsweise vollständig, durch den Trägerarm geführt ist und in dem Trägerarm und/oder dem Lichtkopf ein Einzugsmechanismus zur definierten Aufnahme der Stromversorgungsleitung angeordnet ist.According to the invention, a luminaire, in particular a floor or table lamp with a pull-out towards a support arm light head for receiving a light source and extending to the light head power supply line is proposed, wherein the lamp is characterized in that the power supply line at least partially, preferably completely, by the support arm is guided and in the support arm and / or the light head, a feed mechanism for the defined recording of the power supply line is arranged.

Durch die erfindungsgemäße Lösung wird erreicht, dass die Stromversorgungsleitung nicht mehr das Erscheinungsbild der Leuchte beeinträchtigt. Insbesondere bilden sich unabhängig von der Einstellung des Lichtkopfs gegenüber dem Trägerarm an der Außenseite der Leuchte keine Kabelschlingen, welche bei bislang bekannten Konstruktionen auftreten können. Hierfür ist insbesondere der Einzugsmechanismus verantwortlich, der sicherstellt, dass in sämtlichen Positionen des Lichtkopfs die Stromversorgungsleitung definiert aufgenommen wird.The inventive solution ensures that the power supply line no longer affects the appearance of the lamp. In particular, regardless of the setting of the light head relative to the support arm on the outside of the lamp no cable loops, which may occur in previously known constructions. For this purpose, in particular the collection mechanism is responsible, which ensures that in all positions of the lighthead, the power supply line is recorded in a defined manner.

Vorzugsweise ist der Lichtkopf gegenüber dem Trägerarm teleskopisch ausziehbar, wobei sowohl ein lineares Ausziehen als auch ein bogenförmiges Ausziehen vorgesehen sein könnte. Der Einzugsmechanismus, der nachfolgend noch näher beschrieben wird, umfasst vorzugsweise eine Rollenumlenkung, wobei die Stromversorgungsleitung als Flachbandkabel ausgeführt ist.Preferably, the light head is telescopically extendable relative to the support arm, wherein both a linear extension and a curved extension could be provided. The feed mechanism, which will be described in more detail below, preferably comprises a roller deflection, wherein the power supply line is designed as a ribbon cable.

Im Falle der Verwendung der erfindungsgemäßen Leuchte als Tischleuchte ist die Lichtquelle vorzugsweise durch eine oder mehrere LEDs gebildet. Um in diesem Fall weitere Verstellmöglichkeiten zur individuellen Ausleuchtung zu ermöglichen, kann ferner vorgesehen sein, dass die Leuchte eine verstellbare Reflektoranordnung aufweist. Diese kann insbesondere durch zwei zu beiden Seiten der Lichtquelle angeordnete, schwenkbar gelagerte Reflektoren gebildet sein, wobei dann weiterhin eine Einstellvorrichtung zur Verstellung der beiden Reflektoren vorgesehen ist. Die Lichtquelle und/oder die Reflektoren sind hierbei vorzugsweise mit einem Kühlkörper gekoppeltIn the case of using the lamp according to the invention as a table lamp, the light source is preferably formed by one or more LEDs. To allow in this case further adjustment options for individual illumination, can be further provided that the lamp has an adjustable reflector assembly. This can be formed in particular by two arranged on both sides of the light source, pivotally mounted reflectors, in which case an adjustment device for adjusting the two reflectors is then still provided. The light source and / or the reflectors are in this case preferably coupled to a heat sink

Die Bedienung der erfindungsgemäßen Leuchte kann vorzugsweise durch am Lichtkopf befindliche Bedienelemente vorgenommen werden, wobei diese Bedienelemente insbesondere zum Verstellen des Lichtkopfs gegenüber dem Trägerarm vorgesehen sind, gleichzeitig allerdings auch ein Ein- und Ausschalten bzw. ein Einstellen der Helligkeit ermöglichen können. Erfindungsgemäß ist ein Bedienelement als drehbarer Stift ausgeführt, der zusätzlich auch eine eigenständige Beleuchtung aufweisen kann, um die Auffindbarkeit der Leuchte weiter zu verbessern.The operation of the lamp according to the invention can preferably be made by located on the light head controls, these controls are provided in particular for adjusting the light head relative to the support arm, but at the same time also enable switching on and off or adjusting the brightness. According to the invention an operating element is designed as a rotatable pin, which may additionally also have independent lighting to further improve the findability of the lamp.

Nachfolgend soll die Erfindung anhand der beiliegenden Zeichnung näher erläutert werden. Es zeigen:

Fig. 1
eine perspektivische Ansicht einer erfindungsgemäßen Leuchte;
Fig. 2
eine Ansicht des von dem Trägerarm abgenommenen Lichtkopfs;
Fig. 3
die Unterseite des Lichtkopfs;
Fig. 4
die Anordnung des Einzugsmechanismusses in dem Lichtkopf;
Fig. 5
eine Längs-Schnittdarstellung von Fig. 4 zur Verdeutlichung der Funktionsweise des Einzugsmechanismusses und
Fig. 6
eine weitere Schnittdarstellung des vorderen Endbereichs des Lichtkopfs.
The invention will be explained in more detail with reference to the accompanying drawings. Show it:
Fig. 1
a perspective view of a lamp according to the invention;
Fig. 2
a view of the light arm removed from the support arm;
Fig. 3
the bottom of the lighthead;
Fig. 4
the arrangement of the Einzugsmechanismusseses in the lighthead;
Fig. 5
a longitudinal sectional view of Fig. 4 to clarify the operation of the Einzugsmechanismusses and
Fig. 6
a further sectional view of the front end portion of the lighthead.

Bei der in Fig. 1 dargestellten und allgemein mit dem Bezugszeichen 1 versehenen erfindungsgemäßen Leuchte handelt es sich um eine sog. Tischleuchte, welche insbesondere zur Ausleuchtung von Schreibtischarbeitsplätzen vorgesehen ist Anzumerken ist allerdings, dass die Erfindung nicht auf derartige Tischleuchten beschränkt ist. Sie kann bspw. auch bei Stehleuchten zum Einsatz kommen. Auch bei Wand- oder Deckenleuchten, bei denen ein Trägerarm unmittelbar an einer Wand und/oder Decke befestigt ist und der Lichtkopf gegenüber dem Trägerarm verstellbar ausgestaltet sein soll, könnte die Erfindung verwendet werden.At the in Fig. 1 illustrated and generally provided with the reference numeral 1 inventive lamp is a so-called. Table lamp, which is intended in particular for the illumination of desk workstations It should be noted, however, that the invention is not limited to such table lamps. It can also be used, for example, in floor lamps. Even with wall or ceiling lights, in which a support arm is attached directly to a wall and / or ceiling and the light head is designed to be adjustable relative to the support arm, the invention could be used.

Die in Fig. 1 dargestellte Tischleuchte 1 weist zunächst einen Leuchtenfuß 2 mit elektrischen Anschlussmitteln 3 sowie einen sich von dem Leuchtenfuß 2 nach oben erstreckenden Trägerarm 5 auf, der abgewinkelt ausgestaltet ist derart, dass sich ein erster Teil 5a vertikal von dem Leuchtenfuß 2 nach oben erstreckt und ein zweiter Teil 5b horizontal ausgerichtet ist. Der Trägerarm 5, genaugenommen der horizontale Teil 5b hiervon dient zur Halterung eines nachfolgend noch näher beschriebenen Lichtkopfs 10, der eine längliche Gestalt aufweist und an dessen vorderen Ende einerseits die Lichtquellen und andererseits ein Bedienelement 30, über das die Leuchte 1 bedient werden kann, angeordnet sind. Hierunter ist zu verstehen, dass sowohl - wie nachfolgend beschrieben - die Stellung des Lichtkopfs 10 verändert werden kann als auch die Lichtquellen ein- und ausgeschaltet bzw. in ihrer Helligkeit eingestellt werden können.In the Fig. 1 Table lamp 1 shown initially has a lamp base 2 with electrical connection means 3 and a extending from the lamp stand 2 upwards support arm 5, which is designed angled so that a first part 5a extends vertically from the lamp base 2 upwards and a second part 5b is aligned horizontally. The support arm 5, to be precise the horizontal part 5b thereof, serves to support a lighthead 10 which is described in more detail below and which has an oblong shape and at its front end the light sources on the one hand and an operating element 30 via which the luminaire 1 can be operated are. This is to be understood that both - as described below - the position of the light head 10 can be changed and the light sources can be switched on and off or adjusted in their brightness.

Eine erste grundsätzliche Verstellmöglichkeit für die erfindungsgemäße Leuchte 1 besteht darin, dass der Lichtkopf 10 wie in Fig. 1 dargestellt in Pfeilrichtung gegenüber dem Trägerarm 5 verstellt werden kann. Wie die Darstellung in Fig. 2 zeigt, ist hierzu insbesondere der horizontale Bereich 5b des Trägerarms 5 als nach oben offene U-förmige Schiene ausgestaltet, in der der Lichtkopf 10 teleskopisch aufgenommen ist. Eine Längsverstellung des Lichtkopfs 10 wird nun dadurch ermöglicht, dass im rückwärtigen Bereich des Lichtkopfs 10 drei seitlich über das Gehäuse 11 des Lichtkopfs 10 hervorstehende Rollen 12 angeordnet sind. Diese Rollen 12 greifen in Führungsbahnen 6 ein, welche an den Innenseiten der Seitenwände 7 des Trägerarms 5 ausgebildet sind. Auf diese Weise wird ein leichtgängiges Verstellen des Lichtkopfs 10 ermöglicht, wobei gleichzeitig durch die Rollen 12 in den Schienen 6 eine definierte Führung gegeben ist. Über nicht näher dargestellte Begrenzungselemente kann ferner sichergestellt werden, dass der Verstellbereich für den Lichtkopf 10 auf einen bestimmten Bereich beschränkt ist. Insbesondere soll ein Herausziehen des Lichtkopfs 10 derart, dass die Führungsrollen 12 sichtbar sind, vermieden werden.A first basic adjustment for the lamp 1 according to the invention is that the light head 10 as in Fig. 1 shown in the direction of arrow relative to the support arm 5 can be adjusted. Like the illustration in Fig. 2 shows this, in particular the horizontal portion 5b of the support arm 5 is designed as an upwardly open U-shaped rail, in which the light head 10 is accommodated telescopically. A longitudinal adjustment of the light head 10 is now made possible by the fact that in the rear region of the light head 10 three laterally projecting beyond the housing 11 of the light head 10 rollers 12 are arranged. These rollers 12 engage in guideways 6, which are formed on the inner sides of the side walls 7 of the support arm 5. In this way, a smooth adjustment of the light head 10 is made possible, at the same time given by the rollers 12 in the rails 6 a defined leadership. It is also possible to ensure, via limiting elements not shown, that the adjustment range for the light head 10 is restricted to a certain range. In particular, a pulling out of the light head 10 is such that the guide rollers 12 are visible, can be avoided.

Die Unterseite des Lichtkopfs 10 ist in Fig. 3 gezeigt, wobei dieser Darstellung entnehmbar ist, dass im vorderen Bereich des Lichtkopfs 10 die Lichtquellen angeordnet sind. Es handelt sich hierbei um eine Reihenanordnung mehrerer LEDs 15, wobei selbstverständlich auch andere Lichtquellen zum Einsatz kommen könnten. Im Falle einer Tischleuchte wird das von den LEDs abgegebene Licht vorzugsweise asymmetrisch abgegeben, da derartige Leuchten in der Regel auf der von dem Arbeitenden aus gesehen gegenüberliegenden Seite des Tisches platziert werden und einen bestimmten Arbeitsbereich des Tisches ausleuchten sollen. Um diese asymmetrische Lichtverteilung zu ermöglichen, sind zu beiden Seiten der LEDs 15 Rinnenreflektoren 16 angeordnet, welche verschwenkbar gelagert sind. Über ein Einstellrad 17 können beide Rinnenreflektoren 16 wahlweise in verschiedene Richtungen verschwenkt werden, um die Lichtabgabe zu beeinflussen. Durch diese Flexibilität ist gewährleistet, dass die Leuchte 1 wahlweise an verschiedenen Seiten der zu beleuchtenden Arbeitsfläche aufgestellt werden kann.The underside of the light head 10 is in Fig. 3 shown, wherein this representation is removable, that in the front region of the light head 10, the light sources are arranged. This is a series arrangement of several LEDs 15, although of course other light sources could be used. In the case of a table lamp, the light emitted by the LEDs is preferably emitted asymmetrically, since such lights are usually placed on the opposite side of the table from the worker and should illuminate a particular work area of the table. Around To allow asymmetric light distribution, 15 channel reflectors 16 are arranged on both sides of the LEDs, which are pivotally mounted. Via a dial 17, both channel reflectors 16 can be selectively pivoted in different directions in order to influence the light output. This flexibility ensures that the lamp 1 can be placed either on different sides of the working surface to be illuminated.

Der interne Aufbau des Lichtkopfs 10 kann der Darstellung in Fig. 4 entnommen werden, welche den Lichtkopf 10 ohne die äußere Umkleidung 11 zeigt. Im rückwärtigen Bereich des Lichtkopfs 10 sind hierbei die bereits angesprochenen Führungsrollen 12 angeordnet, während sich am vorderen Ende das Beleuchtungsmodul 18 mit den LEDs sowie den Reflektoren befindet. Ferner ist auch eine mit dem Bedienelement 30 gekoppelte Steuervorrichtung 19 vorgesehen, über welche die Ansteuerung des Beleuchtungsmoduls 18 vorgenommen wird.The internal structure of the light head 10 can be seen in FIG Fig. 4 which shows the light head 10 without the outer casing 11. In the rear region of the light head 10 in this case the already mentioned guide rollers 12 are arranged, while located at the front end of the lighting module 18 with the LEDs and the reflectors. Furthermore, a control device 19 coupled to the control element 30 is provided, via which the control of the lighting module 18 is performed.

Eine weitere wesentliche Komponente des Lichtkopfs 10 ist ein allgemein mit dem Bezugszeichen 20 versehener Einzugsmechanismus, der zur definierten Führung und Aufnahme einer Stromversorgungsleitung dient, über welche die Stromversorgung des Beleuchtungsmoduls 18 erfolgt. Aufgabe dieses Einzugsmechanismusses 20 ist es, die Stromversorgungsleitung in jeder Stellung des Lichtkopfs 10 derart aufzunehmen bzw. zu führen, dass sich keine ungewollten Schlingen der Stromversorgungskabel ergeben, welche zu einer Beeinträchtigung entweder des Aussehens der Leuchte 1 oder der Verstellbarkeit des Lichtkopfs 10 führen könnten. Der Aufbau und die spezielle Funktionsweise des Einzugsmechanismusses 20 soll nachfolgend anhand der Fig. 4 und 5 näher erläutert werden.Another essential component of the light head 10 is a generally designated by the reference numeral 20 feed mechanism, which serves for the defined guidance and receiving a power supply line, via which the power supply of the lighting module 18 takes place. The object of this intake mechanism 20 is to receive or guide the power supply line in any position of the light head 10 such that no unwanted loops of the power supply cables result, which could lead to an impairment of either the appearance of the light 1 or the adjustability of the light head 10. The structure and the special operation of the Einzugsmechanismusses 20 will be described below with reference to Fig. 4 and 5 be explained in more detail.

Generell erfolgt die Stromversorgung des LED-Moduls 18 dadurch, dass zunächst eine Stromversorgungsleitung durch den Trägerarm 5 bis zu dessen vorderen Ende geführt ist. Hier erfolgt an der Stelle A über eine Öffnung O (welche in Fig. 3 erkennbar ist) in der Unterseite des Lichtkopfs 10 eine Verbindung mit einem Flachbandkabel 21, welches einerseits an dem vorderen Ende des Trägerarms 5 angreift und andererseits mit seinem vorderen Ende mit Stromversorgungsdrähten 22 verbunden ist, welche zu dem Beleuchtungsmodul 18 führen. Das Flachbandkabel 21 weist eine Länge auf, welche in jeglicher Stellung des Lichtkopfs 10 eine Verbindung von dem Trägerarm 5 zu den Kabeln 22 sicherstellt. Gleichzeitig ist allerdings das Flachbandkabel 12 über den Einzugsmechanismus 20 derart gelagert, dass keine losen Schlingen auftreten, sobald der Lichtkopf 10 gegenüber dem Trägerarm 5 verschoben wird.In general, the power supply of the LED module 18 takes place in that first a power supply line is guided through the support arm 5 to its front end. Here takes place at the point A via an opening O (which in Fig. 3 It can be seen) in the bottom of the light head 10, a connection with a ribbon cable 21, which acts on the one hand on the front end of the support arm 5 and on the other hand connected to its front end with power supply wires 22, which lead to the lighting module 18. The ribbon cable 21 has a length which ensures a connection from the support arm 5 to the cables 22 in any position of the light head 10. At the same time, however, the ribbon cable 12 is mounted on the feed mechanism 20 such that no loose loops occur as soon as the light head 10 is moved relative to the support arm 5.

Diese Einzugsmechanismus 20 weist als zentrale Elemente vier Führungsrollen 22 bis 25, um die das Flachbandkabel 21 entsprechend der Darstellung schlingenförmig geführt ist. Während die beiden hinteren Führungsrollen 22 und 23 fest in dem Gehäuse des Lichtkopfs 11 angeordnet sind, sind die beiden vorderen Führungsrollen 24 und 25 gemeinsam an einer schlittenartigen Halterung 26 befestigt, wobei diese Halterung in Längsrichtung des Lichtkopfs 10 gleiten kann. Über eine Zugfeder 27 ist das Führungsteil 26 ferner mit einer Halterung 28 für die Kabel 22 verbunden. Die Fig. 4 und 5 zeigen hierbei die Anordnung der Führungsrollen 22 bis 25 bei ausgezogenem Lichtkopf 10.This feed mechanism 20 has as central elements four guide rollers 22 to 25, around which the ribbon cable 21 is looped according to the representation. While the two rear guide rollers 22 and 23 are fixedly arranged in the housing of the light head 11, the two front guide rollers 24 and 25 are fastened together on a carriage-like holder 26, which holder can slide in the longitudinal direction of the light head 10. Via a tension spring 27, the guide member 26 is further connected to a bracket 28 for the cable 22. The Fig. 4 and 5 show here the arrangement of the guide rollers 22 to 25 with the light head 10 pulled out.

Wird nunmehr der Lichtkopf 10 gegenüber dem Trägerarm 5 verstellt, bspw. weiter in den Trägerarm 5 eingeschoben, so hat dies zur Folge, dass das Lichtkopfgehäuse über das vordere Kontaktierungsende 21 a des Flachbandkabels 21 nach hinten geschoben wird. Hierzu rollt das Kabel 21 über die verschiedenen Führungsrollen 22 bis 25 und durch die untere Öffnung in dem Lichtkopf 10 derart ab, dass es an der Unterseite des Lichtkopfs 10 entlang geführt wird. Das Nachführen des Flachbandkabels 21 wird dabei dadurch ermöglicht, dass der Schlitten 26 mit den beiden vorderen Führungsrollen 24 und 25 in Richtung der hinteren Führungsrollen 22 und 23 gezogen wird, wodurch ein Längenausgleich ermöglicht wird. In jeglicher Stellung ist allerdings das Flachbandkabel 21 in definierter Weise über die Führungsrollen 22 bis 25 geführt, so dass keine unerwünschten Schlingen auftreten. Ferner wird durch die Zugfeder 27 sichergestellt, dass das Flachbandkabel 21 grundsätzlich unter Zug gesetzt ist.Now, if the light head 10 is adjusted relative to the support arm 5, for example. Further inserted into the support arm 5, this has the consequence that the light head housing is pushed over the front contacting end 21 a of the ribbon cable 21 to the rear. For this purpose, the cable 21 rolls over the various guide rollers 22 to 25 and through the lower opening in the light head 10 from such that it is guided along the underside of the light head 10 along. The tracking of the ribbon cable 21 is thereby made possible that the carriage 26 is pulled with the two front guide rollers 24 and 25 in the direction of the rear guide rollers 22 and 23, whereby a length compensation is made possible. In any position, however, the ribbon cable 21 is guided in a defined manner over the guide rollers 22 to 25, so that no unwanted loops occur. Furthermore, it is ensured by the tension spring 27 that the ribbon cable 21 is basically put under train.

Durch diesen speziellen Einzugsmechanismus 20 kann also eine Verstellung des Lichtkopfs 10 erfolgen, wobei gleichzeitig sichergestellt ist, dass die Stromversorgungsleitung für die Leuchte generell in definierter Weise in den verschiedenen Gehäuseteilen der Leuchte aufgenommen wird, so dass das Erscheinungsbild der Leuchte nicht negativ beeinflusst wird.By this special feed mechanism 20 can thus be an adjustment of the light head 10, while ensuring that the power supply line for the lamp is generally taken in a defined manner in the various housing parts of the lamp, so that the appearance of the lamp is not adversely affected.

Fig. 6 zeigt abschließend eine Schnittdarstellung des vorderen Bereichs des Lichtkopfs 10, wobei einerseits die LEDs 15 sowie andererseits die zu beiden Seiten der LEDs 15 angeordneten Rinnenreflektoren 16 erkennbar sind. Diese können - wie bereits erwähnt - gemeinsam über das Einstellrad 17 verstellt bzw. verschwenkt werden, so dass eine Lichtabgabe in gewünschter Richtung eingestellt werden kann. Das Beleuchtungsmodul ist hierbei mit einem Kühlkörper 31 gekoppelt, um die Wärme abzuführen. Fig. 6 finally shows a sectional view of the front region of the light head 10, wherein on the one hand the LEDs 15 and on the other hand arranged on both sides of the LEDs 15 channel reflectors 16 can be seen. These can - as already mentioned - be adjusted or pivoted together via the adjusting wheel 17, so that a light output can be adjusted in the desired direction. The lighting module is in this case coupled to a heat sink 31 in order to dissipate the heat.

Die Bedienung der Leuchte 1 erfolgt über den Stift 30, der zunächst einmal ein Angriffselement darstellt, mit dessen Hilfe der Lichtkopf 10 gegenüber dem Trägerarm 5 verschoben werden kann. Gleichzeitig ist der Stift 30 auch ein Bedienelement zum Ein- und Ausschalten der Leuchte 1, was durch ein Verdrehen des Stifts 30 erfolgt. Hierbei kann bspw. auch vorgesehen sein, dass die Helligkeit der LEDs 15 mit Hilfe einer Veränderung der Drehstellung des Stifts 30 eingestellt werden kann. Weiterhin kann vorgesehen sein, dass der Drehstift 30 selbst - bspw. mittels einer weiteren LED - beleuchtet wird, um ein Auffinden der Leuchte zu ermöglichen. Die Ansteuerelektronik für die Lichtquellen ist dabei ferner vorzugsweise derart ausgeführt, dass in einer Position des Lichtkopfs 10, in der die Lichtquellen durch den Trägerarm 5 verdeckt werden, eine Zwangsabschaltung erfolgt.The operation of the lamp 1 via the pin 30, which initially represents an attack element, with the aid of the light head 10 can be moved relative to the support arm 5. At the same time, the pin 30 is also an operating element for switching the lamp 1 on and off, which is done by rotating the pin 30. In this case, for example, it can also be provided that the brightness of the LEDs 15 can be adjusted by means of a change in the rotational position of the pin 30. Furthermore, it can be provided that the pivot pin 30 itself - for example, by means of another LED - is illuminated to allow locating the lamp. The control electronics for the light sources is further preferably designed such that in a position of the light head 10, in which the light sources are covered by the support arm 5, a forced shutdown takes place.

Letztendlich wird also eine Leuchte geschaffen, welche eine Vielzahl von Einstellmöglichkeiten bietet, wobei gleichzeitig durch eine entsprechende Aufnahme der Kabel bzw. Stromversorgungsleitungen sichergestellt ist, dass in jeglichem Zustand der Leuchte deren äußeres Erscheinungsbild nicht beeinträchtigt wird.Ultimately, therefore, a lamp is created which offers a variety of settings, while ensuring at the same time by an appropriate recording of the cable or power supply lines that in any state of the lamp whose appearance is not affected.

Claims (11)

  1. A light fixture (1), in particular a standard or table lamp having a light head (10), which can be extended in relation to a carrier arm (5), for receiving a light source (15) and also a power-supply line (21) which reaches as far as the light head (10), wherein the power-supply line (21) is guided at least in part through the carrier arm (5), and, arranged in the carrier arm (5) and/or the light head (10), there is a retracting mechanism (20) for receiving the power-supply line (21) in a defined manner,
    characterised in that
    arranged on the light head (10) there is an operating element (30) for adjusting the light head (10),
    wherein the operating element (30) is at the same time used to switch the light fixture (1) on and off, and wherein the operating element (30) is realized as a rotatable pin.
  2. A light fixture according to claim 1,
    characterised in that
    the light head (10) can be extended telescopically in relation to the carrier arm (5).
  3. A light fixture according to claim 1 or 2,
    characterised in that
    the light source is formed by a plurality of LEDs (15).
  4. A light fixture according to one of the previous claims,
    characterised in that
    it has an adjustable reflector arrangement.
  5. A light fixture according to claim 4,
    characterised in that
    the reflector arrangement is formed by two reflectors (16) that are arranged on both sides of the light source (15).
  6. A light fixture according to claim 5,
    characterised in that
    the reflectors (16) are pivoted.
  7. A light fixture according to claim 6,
    characterised by
    an adjusting device (17) for adjusting the two reflectors (16).
  8. A light fixture according to one of the previous claims,
    characterised in that
    the light source (15) and/or the reflectors (16) are coupled to a cooling body (31).
  9. A light fixture according to one of the previous claims,
    characterised in that
    the retracting mechanism (20) comprises a roller-type deflecting means.
  10. A light fixture according to one of the previous claims,
    characterised in that
    the power-supply line (21) is realized at least in part as a flat-ribbon cable.
  11. A light fixture according to one of the previous claims,
    characterised in that
    the operating element (30) is illuminated.
EP08715839A 2007-04-05 2008-02-18 Light fixture, in particular a standard lamp or a table lamp, with an extendable light head Not-in-force EP2132478B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202007005087U DE202007005087U1 (en) 2007-04-05 2007-04-05 Luminaire, in particular floor or table lamp with telescopic light head
PCT/EP2008/001242 WO2008122326A1 (en) 2007-04-05 2008-02-18 Light fixture, in particular a standard lamp or a table lamp, with an extendable light head

Publications (2)

Publication Number Publication Date
EP2132478A1 EP2132478A1 (en) 2009-12-16
EP2132478B1 true EP2132478B1 (en) 2011-07-06

Family

ID=39431195

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08715839A Not-in-force EP2132478B1 (en) 2007-04-05 2008-02-18 Light fixture, in particular a standard lamp or a table lamp, with an extendable light head

Country Status (4)

Country Link
EP (1) EP2132478B1 (en)
AT (1) ATE515664T1 (en)
DE (1) DE202007005087U1 (en)
WO (1) WO2008122326A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITNO20100001A1 (en) * 2010-01-28 2011-07-29 Michele Fiori PLEXIGLAS TABLE LAMP WITH DOUBLE LED LIGHTING FOR WORKING AND RELAXATION.
DE202011000020U1 (en) * 2011-01-05 2012-04-16 Zumtobel Lighting Gmbh Luminaire with carrier unit and disc-like luminaire module
CN109099362B (en) * 2018-08-23 2021-02-19 杭州容大智造科技有限公司 A hidden peripheral hardware lighting device for commodity circulation car unloading district
CN109506152A (en) * 2018-11-20 2019-03-22 江苏泓睿德智能科技有限公司 A kind of multi-functional LED desk lamp

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Publication number Priority date Publication date Assignee Title
US1663357A (en) * 1927-02-02 1928-03-20 Stefan Geza Lighting fixture
US2345393A (en) 1941-03-24 1944-03-28 Oliver Pell Control Ltd Adjustable lamp bracket and the like
DE821678C (en) * 1945-10-03 1951-11-19 Frants Heinrich Maack Extendable stand or arm intended for electrical organs
US2598310A (en) * 1950-03-08 1952-05-27 Schaser George Adjustable stand lamp with a switch and a handle to adjust the lamp and also actuate the switch
DE7203745U (en) 1972-02-02 1972-04-27 J Soelken & Co Kg TELESCOPIC LIGHT
US4706172A (en) * 1986-03-27 1987-11-10 Samuel Lebowitz Orientable lamp
DE3615206A1 (en) * 1986-05-05 1987-11-12 Guss Peter Luminaire
US5065299A (en) * 1991-03-22 1991-11-12 Cohen Dennis A Power extendable lamp
DE9114561U1 (en) 1991-11-22 1992-03-26 Dettmer, Uwe, 3000 Hannover Lamp, especially table or floor lamp
GB2296558B (en) * 1994-12-31 1999-05-12 Richard Martin Glover A lamp stand
DE19954134A1 (en) * 1999-11-11 2001-05-23 Andreas Toeteberg Electric lamp with adjustable light output uses synchronous or asynchronous adjustment of at least 2 reflectors for providing symmetrical or angled light beams
DE10036998A1 (en) * 2000-07-29 2002-02-21 Wutschik Mark Solar powered outdoor lighting unit on pole, includes LED array in which diode leads are connected directly to metallic casing supporting array
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Also Published As

Publication number Publication date
DE202007005087U1 (en) 2008-08-07
ATE515664T1 (en) 2011-07-15
EP2132478A1 (en) 2009-12-16
WO2008122326A1 (en) 2008-10-16

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