EP1361391A2 - Lamp for illuminating a workstation - Google Patents

Lamp for illuminating a workstation Download PDF

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Publication number
EP1361391A2
EP1361391A2 EP03004083A EP03004083A EP1361391A2 EP 1361391 A2 EP1361391 A2 EP 1361391A2 EP 03004083 A EP03004083 A EP 03004083A EP 03004083 A EP03004083 A EP 03004083A EP 1361391 A2 EP1361391 A2 EP 1361391A2
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EP
European Patent Office
Prior art keywords
light
lamp
illuminant
work surface
luminaire 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.)
Granted
Application number
EP03004083A
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German (de)
French (fr)
Other versions
EP1361391B1 (en
EP1361391A3 (en
Inventor
Katharina Keller
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ZUMTOBEL LIGHTING GmbH
Original Assignee
Zumtobel Staff GmbH
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Publication of EP1361391A2 publication Critical patent/EP1361391A2/en
Publication of EP1361391A3 publication Critical patent/EP1361391A3/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
    • F21V5/00—Refractors for light sources
    • F21V5/02—Refractors for light sources of prismatic shape
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/40—Lighting for industrial, commercial, recreational or military use
    • F21W2131/402—Lighting for industrial, commercial, recreational or military use for working places
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2105/00—Planar light sources
    • 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]
    • F21Y2115/15—Organic light-emitting diodes [OLED]

Definitions

  • the present invention relates to a lamp for illuminating a workplace with a flat lamp.
  • Ceiling lights are usually used to illuminate work areas in offices used, which illuminate the rooms as a whole. For working on individual Jobs, such as B. Desks, however, is such a general one Room lighting is often not sufficient. Rather, it is individual lighting of the workplace, which is obtained by additional lights.
  • luminaires which as Use a flat light source.
  • this lamp it can be for example an electroluminescent luminescent layer made of an inorganic or act an organic semiconductor material.
  • the layers of light from one inorganic semiconductor material represents a further development of the known punctiform LEDs, which consist of an organic semiconductor layer Illuminants are often referred to as so-called OLEDs (organic LEDs).
  • OLEDs organic LEDs
  • These OLEDs which are usually polymers, are available for example in the form of a thin flexible film.
  • Luminaires with such flat lamps are for example from the DE 198 26 548A1 or EP 0 756 132 A1.
  • Illuminate with flat lamps due to their shallow depth. Since both the Both organic and inorganic light sources are very flat, luminaires can be created that have a total depth of only 0.5 to 3 cm. On Another advantage of such lights is the comparatively very minor Heat.
  • the present invention has for its object a lamp with a to specify flat illuminants which are suitable for illuminating workplaces is.
  • a lamp which has the features of claim 1 has, solved.
  • This is characterized by the fact that the flat Bulb emitted light to a level of the illuminant essentially vertically arranged plane, which represents the work surface to be illuminated, is emitted.
  • the luminaire thus has an asymmetrical light emission that ensures that the light emitted by the illuminant is only for Illumination of the workplace is used and not to cause annoying glare for a user in the workplace.
  • the invention Luminaire can for example be arranged on the edge of a work table. Due to its very shallow depth, it takes up little space and has an effect therefore less annoying than conventional table lamps.
  • the desired asymmetrical radiation characteristic of the lamp according to the invention can be achieved, for example, in that a Light guide plate is arranged, which on the light emitted by the lamp the work surface to be illuminated directs.
  • the deflection of the light can, for example by a on the light exit surface or on the side facing away from the illuminant Light guide plate arranged prism structure can be obtained.
  • An alternative One possibility is to place the lamp on the one to be illuminated Bend the worktop away from the end towards the work surface.
  • both Variants can be an opaque back plate on the back of the lamp be provided, which an undesired emission of light to the back prevented.
  • the illuminant can, for example, be a layer made of an inorganic Semiconductor material or from an organic semiconductor material. In both cases there is the possibility of changing the color temperature of the emitted light to change the field strength applied to the semiconductor layer.
  • An advantageous one Further development of the lamp according to the invention then consists in a device for manual adjustment of the light color, for example a switch or rotary control use. As an alternative, however, the control of the optical fiber can also be done via a sensor.
  • the lamp 1 is for illumination a workplace 6 in the form of a desk 7 is provided.
  • the lamp 1 is in the illustrated example arranged on a long side of the desk 7 and has the Form a flat rectangular disc.
  • this could be a circular shape or have the shape of an ellipse.
  • the lamp 1 is perpendicular to the one to be illuminated Table top 8 of the desk 7 arranged.
  • the radiation from the lamp 1 emitted light is such that the light is directed only to the perpendicular to the Luminaire 1 arranged tabletop 8 falls, so that a trapezoidal area 9 is illuminated.
  • a radiation occurs perpendicular to the plane of the lamp 1 not, however, so that one on the opposite long side of the desk 7 seated person is not blinded.
  • Illuminant 2 shows the structural design of the luminaire 1 according to the invention.
  • the light is this creates a flat layer of a flat illuminant 2.
  • Illuminant 2 is an electroluminescent layer made of a inorganic or organic semiconductor material, for example around a thin one OLED film.
  • Electrode layers with the aid of which one is applied over the semiconductor layer 2 electric field is generated. This electric field is for the generation of light in the Semiconductor layer 2 responsible.
  • the color of the lamp 2 generated is influenced by the field strength of the electric field. It there is thus the possibility of changing the color temperature of the lamp 1 Adjust the light individually, for example, by manual control of the electrical field strength or automatically via an appropriate sensor can.
  • the deflection of the light emitted by the illuminant 2 in the direction of illuminating work surface is arranged in front of the illuminant 2 Lichtlenkplatte 4.
  • This consists of a transparent material, for example Plastic or glass and has a prism structure 5 on its light exit side.
  • the preferably in one piece with the plate-shaped core of the light guide plate 4th connected microprisms 5 have an asymmetrical structure, so that from the Microprisms 5 emerging light beams downwards or in the direction of illuminating work surface. In Fig. 2 this is an example represented using the light beam S1.
  • the whole Structure has a very shallow depth of, for example, 5mm to 3cm.
  • FIG. 3 A second exemplary embodiment of a luminaire according to the invention is shown in FIG. 3 shown.
  • the lamp 11 is on its from illuminating work surface 8 facing away from the work surface 8 curved.
  • the direction of the light emitted by the lamp 11 is on the Table top improved.
  • the radiation of the light emitted by the luminaire 1 is thereby better determined and the trapezoidal area 12 generated on the work surface 8 better can be specified.
  • the lamp has an identical structure on like the lamp shown in Figs. 1 and 2.
  • the present invention thus provides an extremely flat lamp Lighting of a workplace is available, which takes up little space and at the same time ensures optimal lighting.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)
  • Planar Illumination Modules (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

The light (1) has a flat light source and is designed so that the light emitted by the light source is radiated onto the working position (6), which is essentially perpendicular to the plane of the light source. A light deflection plate of transparent material is arranged in front of the light source deflects the light from the source onto the working surface (8) to be illuminated.

Description

Die vorliegende Erfindung betrifft eine Leuchte zur Beleuchtung eines Arbeitsplatzes mit einem flächigen Leuchtmittel.The present invention relates to a lamp for illuminating a workplace with a flat lamp.

Zur Beleuchtung von Arbeitsbereichen in Büros werden in der Regel Deckenleuchten verwendet, welche die Räume insgesamt ausleuchten. Für die Arbeit an individuellen Arbeitsplätzen, wie z. B. Schreibtischen ist allerdings eine derartige allgemeine Raumbeleuchtung oftmals nicht ausreichend. Vielmehr ist eine individuelle Beleuchtung des Arbeitsplatzes erforderlich, welche durch zusätzliche Leuchten erhalten wird.Ceiling lights are usually used to illuminate work areas in offices used, which illuminate the rooms as a whole. For working on individual Jobs, such as B. Desks, however, is such a general one Room lighting is often not sufficient. Rather, it is individual lighting of the workplace, which is obtained by additional lights.

Zu einer individuellen Beleuchtung eines Schreibtisches werden beispielsweise Tischleuchten verwendet, welche einen verstellbaren Leuchtenarm aufweisen, an dessen Ende sich eine in einem Reflektor angeordnete Lichtquelle befindet. Dieser Leuchtenarm wirkt sich insofern störend aus, als er einen gewissen Platz an dem Schreibtisch beansprucht. Ferner stellt die Lichtquelle eine sich in etwa in Kopfhöhe befindende zusätzliche Wärmequelle dar, welche die Arbeit an dem Arbeitsplatz beeinträchtigt.Individual lighting for a desk, for example Table lamps used, which have an adjustable lamp arm, on the At the end there is a light source arranged in a reflector. This Luminaire arm has a disturbing effect in that it has a certain place in the Desk claimed. Furthermore, the light source is approximately at head height located additional heat source, which is the work in the workplace impaired.

In den letzten Jahren wurden neuartige Leuchtentypen entwickelt, welche als Lichtquelle ein flächiges Leuchtmittel verwenden. Bei diesem Leuchtmittel kann es sich beispielsweise um eine Elektrolumineszenz-Leuchtschicht aus einem anorganischen oder einem organischen Halbleitermaterial handeln. Die Leuchtschichten aus einem anorganischen Halbleitermaterial stellen eine Weiterentwicklung der bekannten punktförmigen LED's dar, die aus einer organischen Halbleiterschicht bestehenden Leuchtmittel werden oftmals auch als sog. OLED's (organische LED's) bezeichnet. Diese OLED's, bei denen es sich in der Regel um Polymere handelt, stehen beispielsweise in Form einer dünnen flexiblen Folie zur Verfügung.In recent years, new types of luminaires have been developed, which as Use a flat light source. With this lamp it can be for example an electroluminescent luminescent layer made of an inorganic or act an organic semiconductor material. The layers of light from one inorganic semiconductor material represents a further development of the known punctiform LEDs, which consist of an organic semiconductor layer Illuminants are often referred to as so-called OLEDs (organic LEDs). These OLEDs, which are usually polymers, are available for example in the form of a thin flexible film.

Leuchten mit derartigen flächigen Leuchtmitteln sind beispielsweise aus der DE 198 26 548A1 oder der EP 0 756 132 A1 bekannt. Gegenüber den herkömmlichen Leuchten mit Glühbirnen oder Leuchtstoffröhren als Lichtquellen zeichnen sich diese Leuchten mit flächigen Leuchtmitteln durch ihre geringe Tiefe aus. Da sowohl die organischen als auch die anorganischen Leuchtmittel sehr flach sind, können Leuchten erstellt werden, die insgesamt lediglich eine Tiefe von 0,5 bis 3 cm aufweisen. Ein weiterer Vorteil derartiger Leuchten ist die vergleichsweise sehr geringfügige Wärmeentwicklung. Luminaires with such flat lamps are for example from the DE 198 26 548A1 or EP 0 756 132 A1. Compared to the conventional Luminaires with light bulbs or fluorescent tubes as light sources stand out Illuminate with flat lamps due to their shallow depth. Since both the Both organic and inorganic light sources are very flat, luminaires can can be created that have a total depth of only 0.5 to 3 cm. On Another advantage of such lights is the comparatively very minor Heat.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, eine Leuchte mit einem flächigen Leuchtmittel anzugeben, welche zur Beleuchtung von Arbeitsplätzen geeignet ist.The present invention has for its object a lamp with a to specify flat illuminants which are suitable for illuminating workplaces is.

Die Aufgabe wird durch eine Leuchte, welche die Merkmale des Anspruches 1 aufweist, gelöst. Diese zeichnet sich dadurch aus, dass das von dem flächigen Leuchtmittel abgegebene Licht auf eine zur Ebene des Leuchtmittels im wesentlichen senkrecht angeordnete Ebene, welche die zu beleuchtende Arbeitsfläche darstellt, abgestrahlt wird. Die Leuchte weist somit eine asymmetrische Lichtabstrahlung auf, die sicherstellt, dass das von dem Leuchtmittel abgegebene Licht lediglich zur Ausleuchtung des Arbeitsplatzes verwendet wird und nicht zu störenden Blendeffekten für einen an dem Arbeitsplatz befindlichen Benutzer führt. Die erfindungsgemäße Leuchte kann beispielsweise an der Kante eines Arbeitstisches angeordnet werden. Aufgrund ihrer nur sehr geringen Tiefe beansprucht sie wenig Platz und wirkt sich daher weniger störend aus als herkömmliche Tischleuchten.The object is achieved by a lamp which has the features of claim 1 has, solved. This is characterized by the fact that the flat Bulb emitted light to a level of the illuminant essentially vertically arranged plane, which represents the work surface to be illuminated, is emitted. The luminaire thus has an asymmetrical light emission that ensures that the light emitted by the illuminant is only for Illumination of the workplace is used and not to cause annoying glare for a user in the workplace. The invention Luminaire can for example be arranged on the edge of a work table. Due to its very shallow depth, it takes up little space and has an effect therefore less annoying than conventional table lamps.

Die gewünschte asymmetrische Abstrahlcharakteristik der erfindungsgemäßen Leuchte kann beispielsweise dadurch erreicht werden, dass vor dem flächigen Leuchtmittel eine Lichtlenkplatte vorgeordnet ist, welche das von dem Leuchtmittel abgegebene Licht auf die zu beleuchtende Arbeitsfläche lenkt. Die Umlenkung des Lichts kann beispielsweise durch eine an der Lichtaustrittsfläche bzw. der dem Leuchtmittel abgewandten Seite der Lichtlenkplatte angeordnete Prismenstruktur erhalten werden. Eine alternative Möglichkeit besteht darin, das Leuchtmittel an seinem der zu beleuchtenden Arbeitsplatte abgewandten Ende zur Arbeitsfläche hin zu krümmen. Bei beiden Varianten kann an der Rückseite des Leuchtmittels eine lichtundurchlässige Rückplatte vorgesehen sein, welche ein ungewünschtes Abstrahlen von Licht zur Rückseite hin verhindert.The desired asymmetrical radiation characteristic of the lamp according to the invention can be achieved, for example, in that a Light guide plate is arranged, which on the light emitted by the lamp the work surface to be illuminated directs. The deflection of the light can, for example by a on the light exit surface or on the side facing away from the illuminant Light guide plate arranged prism structure can be obtained. An alternative One possibility is to place the lamp on the one to be illuminated Bend the worktop away from the end towards the work surface. By both Variants can be an opaque back plate on the back of the lamp be provided, which an undesired emission of light to the back prevented.

Das Leuchtmittel kann beispielsweise eine Schicht aus einem anorganischen Halbleitermaterial oder aus einem organischen Halbleitermaterial sein. In beiden Fällen besteht die Möglichkeit, die Farbtemperatur des abgegebenen Lichts durch Veränderung der an die Halbleiterschicht angelegten Feldstärke zu verändern. Eine vorteilhafte Weiterbildung der erfindungsgemäßen Leuchte besteht dann darin, eine Vorrichtung zur manuellen Einstellung der Lichtfarbe, beispielsweise einen Schalter oder Drehregler zu verwenden. Alternativ dazu kann die Steuerung der Lichtfaser allerdings auch über einen Sensor erfolgen.The illuminant can, for example, be a layer made of an inorganic Semiconductor material or from an organic semiconductor material. In both cases there is the possibility of changing the color temperature of the emitted light to change the field strength applied to the semiconductor layer. An advantageous one Further development of the lamp according to the invention then consists in a device for manual adjustment of the light color, for example a switch or rotary control use. As an alternative, however, the control of the optical fiber can also be done via a sensor.

Die Erfindung soll nachfolgend anhand der beiliegenden Zeichnung näher erläutert werden. Es zeigen:

Fig. 1
ein erstes Ausführungsbeispiel einer erfindungsgemäßen Leuchte zur Arbeitsplatzbeleuchtung;
Fig. 2
die in Fig. 1 dargestellte Leuchte im Schnitt; und
Fig. 3
ein zweites Ausführungsbeispiel einer erfindungsgemäßen Leuchte.
The invention will be explained below with reference to the accompanying drawings. Show it:
Fig. 1
a first embodiment of a lamp according to the invention for workplace lighting;
Fig. 2
the lamp shown in Figure 1 in section. and
Fig. 3
a second embodiment of a lamp according to the invention.

Bei dem in Fig. 1 dargestellten Ausführungsbeispiel ist die Leuchte 1 zur Ausleuchtung eines Arbeitsplatzes 6 in Form eines Schreibtisches 7 vorgesehen. Die Leuchte 1 ist im dargestellten Beispiel an einer Längsseite des Schreibtisches 7 angeordnet und weist die Form einer flachen rechteckigen Scheibe auf. Selbstverständlich wären allerdings auch andere Formen für die Leuchte 1 denkbar. Beispielsweise könnte diese eine Kreisform oder die Form einer Ellipse aufweisen.In the embodiment shown in Fig. 1, the lamp 1 is for illumination a workplace 6 in the form of a desk 7 is provided. The lamp 1 is in the illustrated example arranged on a long side of the desk 7 and has the Form a flat rectangular disc. Of course, would also be other shapes for the lamp 1 conceivable. For example, this could be a circular shape or have the shape of an ellipse.

Wie in Fig. 1 dargestellt ist, ist die Leuchte 1 senkrecht zu der zu beleuchtenden Tischplatte 8 des Schreibtisches 7 angeordnet. Die Abstrahlung des von der Leuchte 1 abgegebenen Lichts ist derart, dass das Licht ausschließlich auf die senkrecht zu der Leuchte 1 angeordnete Tischplatte 8 fällt, so dass auf diesem ein trapezartiger Bereich 9 ausgeleuchtet wird. Eine Abstrahlung senkrecht zur Ebene der Leuchte 1 erfolgt hingegen nicht, so dass eine an der gegenüberliegenden Längsseite des Schreibtisches 7 sitzende Person nicht geblendet wird.As shown in Fig. 1, the lamp 1 is perpendicular to the one to be illuminated Table top 8 of the desk 7 arranged. The radiation from the lamp 1 emitted light is such that the light is directed only to the perpendicular to the Luminaire 1 arranged tabletop 8 falls, so that a trapezoidal area 9 is illuminated. A radiation occurs perpendicular to the plane of the lamp 1 not, however, so that one on the opposite long side of the desk 7 seated person is not blinded.

Fig. 2 zeigt den strukturellen Aufbau der erfindungsgemäßen Leuchte 1. Das Licht wird dabei eine flache Schicht eines flächigen Leuchtmittels 2 erzeugt. Bei diesem Leuchtmittel 2 handelt es sich um eine elektrolumineszierende Schicht aus einem anorganischen oder organischen Halbleitermaterial, beispielsweise um eine dünne OLED-Folie. Zu beiden Seiten dieser Schicht 2 befinden sich (nicht dargestellte) Elektrodenschichten, mit deren Hilfe ein über die Halbleiterschicht 2 anliegendes elektrisches Feld erzeugt wird. Dieses elektrische Feld ist für die Lichterzeugung in der Halbleiterschicht 2 verantwortlich. Die Farbe des von dem Leuchtmittel 2 erzeugten Lichts wird dabei u.a. durch die Feldstärke des elektrischen Feldes beeinflusst. Es besteht somit die Möglichkeit, die Farbtemperatur des von der Leuchte 1 abgegebenen Lichts individuell einzustellen, was beispielsweise durch eine manuelle Steuerung der elektrischen Feldstärke oder automatisch über einen entsprechenden Sensor erfolgen kann.2 shows the structural design of the luminaire 1 according to the invention. The light is this creates a flat layer of a flat illuminant 2. With this Illuminant 2 is an electroluminescent layer made of a inorganic or organic semiconductor material, for example around a thin one OLED film. On both sides of this layer 2 there are (not shown) Electrode layers with the aid of which one is applied over the semiconductor layer 2 electric field is generated. This electric field is for the generation of light in the Semiconductor layer 2 responsible. The color of the lamp 2 generated Among other things, light is influenced by the field strength of the electric field. It there is thus the possibility of changing the color temperature of the lamp 1 Adjust the light individually, for example, by manual control of the electrical field strength or automatically via an appropriate sensor can.

Die Umlenkung des von dem Leuchtmittel 2 abgegebenen Lichts in Richtung der zu beleuchtenden Arbeitsfläche erfolgt über eine vor dem Leuchtmittel 2 angeordnete Lichtlenkplatte 4. Diese besteht aus einem transparenten Material, beispielsweise Kunststoff oder Glas und weist an ihrer Lichtaustrittsseite eine Prismenstruktur 5 auf. Die vorzugsweise einstückig mit dem plattenförmigen Kern der Lichtlenkplatte 4 verbundenen Mikroprismen 5 weisen eine asymmetrische Struktur auf, so dass aus den Mikroprismen 5 austretende Lichtstrahlen nach unten bzw. in Richtung der zu beleuchtenden Arbeitsfläche hin gebrochen werden. In Fig. 2 ist dies beispielhaft anhand des Lichtstrahls S1 dargestellt.The deflection of the light emitted by the illuminant 2 in the direction of illuminating work surface is arranged in front of the illuminant 2 Lichtlenkplatte 4. This consists of a transparent material, for example Plastic or glass and has a prism structure 5 on its light exit side. The preferably in one piece with the plate-shaped core of the light guide plate 4th connected microprisms 5 have an asymmetrical structure, so that from the Microprisms 5 emerging light beams downwards or in the direction of illuminating work surface. In Fig. 2 this is an example represented using the light beam S1.

An der Rückseite des Leuchtmittels 2 ist eine lichtundurchlässige Rückplatte 3 angeordnet, die eine Abstrahlung von Licht nach hinten verhindert. Die gesamte Struktur weist eine sehr geringe Tiefe von beispielsweise 5mm bis 3cm auf. Den größten Anteil davon beansprucht die Lichtlenkplatte 4, an deren Rückseite das Leuchtmittel 2, die dazugehörigen Elektrodenschichten und die Rückplatte 3 in Form von dünnen Folien aufgebracht werden können.On the back of the illuminant 2 is an opaque back plate 3 arranged, which prevents radiation of light to the rear. The whole Structure has a very shallow depth of, for example, 5mm to 3cm. The The light guide plate 4, the rear of which claims the greatest proportion Illuminant 2, the associated electrode layers and the back plate 3 in shape of thin films can be applied.

Ein zweites Ausführungsbeispiel einer erfindungsgemäßen Leuchte ist in Fig. 3 dargestellt. In diesem Ausführungsbeispiel ist die Leuchte 11 an ihrem von der zu beleuchtenden Arbeitsfläche 8 abgewandten Ende zur Arbeitsfläche 8 hin gekrümmt. Hierdurch wird die Lenkung des von der Leuchte 11 abgegebenen Lichts auf die Tischplatte hin verbessert. Es besteht dann sogar die Möglichkeit, auf die zuvor erläuterte Lichtlenkplatte mit der Mikroprismenstruktur zu verzichten. Dennoch ist die Verwendung einer derartigen Lichtlenkplatte auch bei diesem Ausführungsbeispiel von Vorteil, da die Abstrahlung des von der Leuchte 1 abgegebenen Lichts hierdurch besser bestimmt und der auf der Arbeitsfläche 8 erzeugte trapezartige Bereich 12 besser vorgegeben werden kann. Die Leuchte weist in diesem Fall einen identischen Aufbau auf wie die in Fig. 1 und 2 dargestellte Leuchte.A second exemplary embodiment of a luminaire according to the invention is shown in FIG. 3 shown. In this embodiment, the lamp 11 is on its from illuminating work surface 8 facing away from the work surface 8 curved. As a result, the direction of the light emitted by the lamp 11 is on the Table top improved. There is then even the possibility of going to the previous one explained to dispense with the light guide plate with the micro prism structure. Nevertheless, it is Use of such a light guide plate also in this embodiment of Advantage, because the radiation of the light emitted by the luminaire 1 is thereby better determined and the trapezoidal area 12 generated on the work surface 8 better can be specified. In this case, the lamp has an identical structure on like the lamp shown in Figs. 1 and 2.

Insgesamt stellt somit die vorliegende Erfindung eine äußerst flache Leuchte zur Beleuchtung eines Arbeitsplatzes zur Verfügung, welche nur wenig Platz beansprucht und gleichzeitig für eine optimale Beleuchtung sorgt.Overall, the present invention thus provides an extremely flat lamp Lighting of a workplace is available, which takes up little space and at the same time ensures optimal lighting.

Claims (8)

Leuchte (1, 11) zur Beleuchtung einer Arbeitsfläche (8) mit einem flächigen Leuchtmittel (2),
dadurch gekennzeichnet, dass die Leuchte (1, 11) derart ausgestaltet ist, dass das von dem Leuchtmittel (2) abgegebene Licht (S1) auf die zur Ebene des Leuchtmittels (2) im wesentlichen senkrecht angeordnete Arbeitsfläche (8) abgestrahlt wird.Luminaire (1, 11) for illuminating a work surface (8) with a flat lamp (2),
characterized in that the lamp (1, 11) is designed such that the light (S1) emitted by the illuminant (2) is emitted onto the work surface (8) which is essentially perpendicular to the plane of the illuminant (2). Leuchte nach Anspruch 1,
dadurch gekennzeichnet, dass dem Leuchtmittel (2) eine aus einem transparentem Material bestehende Lichtlenkplatte (4) vorgeordnet ist, welche das von dem Leuchtmittel (2) abgegebene Licht (S1) auf die zu beleuchtende Arbeitsfläche (8) lenkt.Luminaire according to claim 1,
characterized in that the illuminant (2) is preceded by a light guide plate (4) made of a transparent material, which directs the light (S1) emitted by the illuminant (2) onto the work surface (8) to be illuminated. Leuchte nach Anspruch 2,
dadurch gekennzeichnet, dass die Lichtlenkplatte (4) an ihrer dem Leuchtmittel (2) abgewandten Seite eine Prismenstruktur (4) aufweist.Luminaire according to claim 2,
characterized in that the light guide plate (4) has a prism structure (4) on its side facing away from the illuminant (2). Leuchte nach Anspruch 3,
dadurch gekennzeichnet, dass die Prismenstruktur (4) einstückig mit dem plattenförmigen Kern der Lichtlenkplatte (4) verbunden ist.Luminaire according to claim 3,
characterized in that the prism structure (4) is integrally connected to the plate-shaped core of the light guide plate (4). Leuchte nach einem der vorherigen Ansprüche,
dadurch gekennzeichnet, dass das Leuchtmittel (2) an seinem der zu beleuchtenden Arbeitsfläche (8) abgewandten Ende zur Arbeitsfläche (8) hin gekrümmt ist.Luminaire according to one of the preceding claims,
characterized in that the lamp (2) is curved towards the work surface (8) at its end facing away from the work surface (8) to be illuminated. Leuchte nach einem der vorherigen Ansprüche,
dadurch gekennzeichnet, dass diese an der Rückseite der Leuchtmittel (2) eine lichtundurchlässige Rückplatte (3) aufweist.Luminaire according to one of the preceding claims,
characterized in that it has an opaque rear plate (3) on the back of the lamps (2). Leuchte nach einem der vorherigen Ansprüche,
dadurch gekennzeichnet, dass es sich bei dem Leuchtmittel (2) um eine Schicht aus einem anorganischen Halbleitermaterial handelt.Luminaire according to one of the preceding claims,
characterized in that the illuminant (2) is a layer made of an inorganic semiconductor material. Leuchte nach einem der Ansprüche 1 bis 5,
dadurch gekennzeichnet, dass es sich bei dem Leuchtmittel (2) um eine Folie aus einem organischen Halbleitermaterial handelt.Luminaire according to one of claims 1 to 5,
characterized in that the illuminant (2) is a film made of an organic semiconductor material.
EP03004083A 2002-05-08 2003-02-25 Lamp for illuminating a workstation Expired - Lifetime EP1361391B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10220588 2002-05-08
DE10220588A DE10220588A1 (en) 2002-05-08 2002-05-08 Luminaire for workplace lighting

Publications (3)

Publication Number Publication Date
EP1361391A2 true EP1361391A2 (en) 2003-11-12
EP1361391A3 EP1361391A3 (en) 2006-04-12
EP1361391B1 EP1361391B1 (en) 2010-04-28

Family

ID=7714504

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03004083A Expired - Lifetime EP1361391B1 (en) 2002-05-08 2003-02-25 Lamp for illuminating a workstation

Country Status (4)

Country Link
EP (1) EP1361391B1 (en)
AT (1) ATE466230T1 (en)
DE (2) DE10220588A1 (en)
NO (1) NO334160B1 (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2363632A1 (en) * 2010-03-05 2011-09-07 Pöllet, Wilfried Device for lighting a work board
EP2428826A1 (en) * 2010-09-10 2012-03-14 Young Lighting Technology Corporation Light source apparatus and method of using light source appartus
WO2013007744A1 (en) * 2011-07-12 2013-01-17 Ledon Oled Lighting Gmbh & Co. Kg Light module with controllable light guidance
WO2014193830A1 (en) * 2013-05-31 2014-12-04 3M Innovative Properties Company Luminaire for crosswalk
EP2573455A3 (en) * 2011-09-22 2014-12-31 Flos S.P.A. Lamp with asymmetric luminous intensity
WO2014172147A3 (en) * 2013-04-17 2015-02-05 Pixi Lighting, Inc. Lighting assembly
US9335036B2 (en) 2011-05-17 2016-05-10 Pixi Lighting, Inc. Flat panel lighting device and driving circuitry
US9476552B2 (en) 2013-04-17 2016-10-25 Pixi Lighting, Inc. LED light fixture and assembly method therefor
US9546781B2 (en) 2013-04-17 2017-01-17 Ever Venture Solutions, Inc. Field-serviceable flat panel lighting device
US9557022B2 (en) 2015-04-30 2017-01-31 Ever Venture Solutions, Inc. Non-round retrofit recessed LED lighting fixture

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EP0756132A1 (en) 1995-07-28 1997-01-29 MAGNETI MARELLI S.p.A. Reduced-thickness motor vehicle lamp
DE19826548A1 (en) 1998-02-05 1999-08-12 Zumtobel Staff Gmbh Lighting arrangement

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AUPM483294A0 (en) * 1994-03-31 1994-04-28 Chulalongkorn University Amorphous semiconductor thin film light emitting diode
DE29621619U1 (en) * 1996-12-12 1997-02-27 Siemens Ag Device for illuminating theater stages, TV studios or the like.
DE10042651C2 (en) * 2000-05-08 2002-10-02 Poellet Wilfried Workplace lighting
JP2001325805A (en) * 2000-05-15 2001-11-22 Matsushita Electric Works Ltd Stand-type lighting fixture
JP2001357978A (en) * 2000-06-16 2001-12-26 Kuraray Co Ltd Surface light source device

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EP0756132A1 (en) 1995-07-28 1997-01-29 MAGNETI MARELLI S.p.A. Reduced-thickness motor vehicle lamp
DE19826548A1 (en) 1998-02-05 1999-08-12 Zumtobel Staff Gmbh Lighting arrangement

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2363632A1 (en) * 2010-03-05 2011-09-07 Pöllet, Wilfried Device for lighting a work board
EP2428826A1 (en) * 2010-09-10 2012-03-14 Young Lighting Technology Corporation Light source apparatus and method of using light source appartus
US9562678B2 (en) 2011-05-17 2017-02-07 Pixi Lighting, Inc. Flat panel lighting device
US9664365B2 (en) 2011-05-17 2017-05-30 Pixi Lighting, Inc. Flat panel lighting device
US10422518B2 (en) 2011-05-17 2019-09-24 Unity Opto Technology Co., Ltd. Flat panel lighting device
US10364974B2 (en) 2011-05-17 2019-07-30 Unity Opto Technology Co., Ltd. Flat panel lighting device and driving circuitry
US9335036B2 (en) 2011-05-17 2016-05-10 Pixi Lighting, Inc. Flat panel lighting device and driving circuitry
US9423113B2 (en) 2011-05-17 2016-08-23 Pixi Lighting, Inc. Flat panel lighting device and driving circuitry
US9441801B1 (en) 2011-05-17 2016-09-13 Pixi Lighting, Inc. Flat panel lighting device and driving circuitry
US9447954B2 (en) 2011-05-17 2016-09-20 Pixi Lighting, Inc. Light fixture having a central wire-way
US9453616B2 (en) 2011-05-17 2016-09-27 Pixi Lighting, Inc. Flat panel lighting device
WO2013007744A1 (en) * 2011-07-12 2013-01-17 Ledon Oled Lighting Gmbh & Co. Kg Light module with controllable light guidance
EP2573455A3 (en) * 2011-09-22 2014-12-31 Flos S.P.A. Lamp with asymmetric luminous intensity
US9500328B2 (en) 2013-04-17 2016-11-22 Pixi Lighting, Inc. Lighting assembly
US9546781B2 (en) 2013-04-17 2017-01-17 Ever Venture Solutions, Inc. Field-serviceable flat panel lighting device
US9476552B2 (en) 2013-04-17 2016-10-25 Pixi Lighting, Inc. LED light fixture and assembly method therefor
US10352544B2 (en) 2013-04-17 2019-07-16 Unity Opto Technology Co., Ltd. Field-serviceable flat panel lighting device
WO2014172147A3 (en) * 2013-04-17 2015-02-05 Pixi Lighting, Inc. Lighting assembly
US10386023B2 (en) 2013-04-17 2019-08-20 Unity Opto Technology Co., Ltd. LED light fixture and assembly method therefor
WO2014193830A1 (en) * 2013-05-31 2014-12-04 3M Innovative Properties Company Luminaire for crosswalk
US9557022B2 (en) 2015-04-30 2017-01-31 Ever Venture Solutions, Inc. Non-round retrofit recessed LED lighting fixture

Also Published As

Publication number Publication date
NO20032047D0 (en) 2003-05-07
DE10220588A1 (en) 2003-11-20
NO334160B1 (en) 2013-12-23
EP1361391B1 (en) 2010-04-28
EP1361391A3 (en) 2006-04-12
DE50312651D1 (en) 2010-06-10
NO20032047L (en) 2003-11-10
ATE466230T1 (en) 2010-05-15

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