EP0347867B1 - Lighting system - Google Patents

Lighting system Download PDF

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Publication number
EP0347867B1
EP0347867B1 EP89111250A EP89111250A EP0347867B1 EP 0347867 B1 EP0347867 B1 EP 0347867B1 EP 89111250 A EP89111250 A EP 89111250A EP 89111250 A EP89111250 A EP 89111250A EP 0347867 B1 EP0347867 B1 EP 0347867B1
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EP
European Patent Office
Prior art keywords
lighting system
accordance
light source
large area
vertical support
Prior art date
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Expired - Lifetime
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EP89111250A
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German (de)
French (fr)
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EP0347867A3 (en
EP0347867A2 (en
Inventor
Hartmut S. Engel
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Individual
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Individual
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Publication of EP0347867A3 publication Critical patent/EP0347867A3/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/0008—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
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
    • 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
    • F21S6/003—Table lamps, e.g. for ambient lighting for task lighting, e.g. for reading or desk work, e.g. angle poise lamps
    • 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
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/06—Bases for movable standing lamps; Fixing standards to the bases
    • 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
    • F21V23/02—Arrangement of electric circuit elements in or on lighting devices the elements being transformers, impedances or power supply units, e.g. a transformer with a rectifier
    • 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

Definitions

  • the invention relates to a lighting system, in particular for uniformly illuminating limited work surfaces, consisting of at least one light source and an associated large surface reflector, which at least partially spans the respective work surface and is held on at least one vertical support, and at least one arranged in the area between the work surface and large surface reflector the large area reflector radiating light source.
  • a lighting system of the type mentioned is known. This includes a vertical support, at the head end of which a reflector is provided. As is customary with conventional desk lamps, two light sources are arranged directly on this, ie the sockets for receiving these lamps are integrated in the reflector.
  • the known lighting system has a heat radiation source which is on the work surface, i.e. is arranged in the foot area of the vertical support.
  • the heat radiation source is surrounded by a screen, by means of which the heat radiation emitted by the heat radiation source is directed onto the reflector, where it is directed together with the light radiation against the work surface.
  • the known lighting system is problematic in that it does not allow individual adaptation of the lighting to the respective workplace and is critical in terms of the anti-glare required in computer workplaces. In addition, it does not allow the position of the workplaces to be changed without impairing the lighting quality of the workstation in question.
  • the object of the present invention is to provide a lighting system of the type specified in the preamble of claim 1 in such a way that an optimal, glare-free illumination of the respective workplace is achieved without the need for light planning which encompasses the respective entire space and thereby does not impair the usable area of the Work surface must be accepted.
  • the lighting system should also be suitable for the individualization of the individual workplace and its effectiveness should not be impaired even if changes have to be made in the respective position of the workplace.
  • This object is achieved according to the invention essentially in that the light source is held at a distance from the work surface on the vertical support and the large area reflector on the vertical support is adjustable with respect to the distance and / or the inclination to the work surface.
  • the individual conditions and wishes with regard to workplace lighting can be taken into account by the given setting options of the large area reflector in relation to the work surface, since this enables the lighting system to be adapted to the respective workplace and uniform illumination is ensured if the relative positions and inclinations are set in the respectively required manner are.
  • the large-area reflector is advantageously adjustable in a self-curvature, as a result of which the desired uniformity of the work area lighting and also the desired brightness can be achieved individually for the respective workplace.
  • the vertical support advantageously consists of individual sections which can be coupled and mutually fixed, these individual sections comprising support sections and supporting functional sections for light sources and ballasts can be combined as desired.
  • the couplings between the individual sections are designed both as mechanically stable plug-in, latching or screw connections, and are preferably provided with electrical coupling units which inevitably ensure the necessary electrical connections when the mechanical coupling is carried out.
  • the mechanical coupling can take place via conically interlocking elements, the electrical connection parts being arranged concentrically and the positive and non-positive connection between the two mechanical parts to be coupled being achieved via a screw sleeve.
  • the electrical connection elements can be used in pin-sleeve form or in the form of concentric contact elements.
  • a diagonal division can be provided in such a way that a mechanically stable triangular beam that absorbs all mechanical loads is combined with a likewise triangular receiving space for the electrical functional elements.
  • the light source assigned to the large area reflector is combined at the same time with at least one direct emitter, one direct light source or one light source delivering both direct light and indirect light via the large area reflector.
  • a separate additional light source which is also preferably held on the vertical support, can be used.
  • the brightness is preferably selected so that direct light and reflected light have the same brightness on the work surface, thus ensuring the typical softness of the indirect light and the required absence of shadows on the entire work surface.
  • Fig. 1 shows an example of a piece of work furniture a desk 1 with a work surface 2, which is illuminated by means of the individually adapted to this work surface 2 lighting system according to the invention in accordance with the respective requirements with indirect and direct light in an optimal way, since there are no disturbing structures and there is no shadow formation.
  • the lighting system comprises a vertical support 3, which can be provided with a stable base, but is preferably coupled directly to the desk 1 via an interface connection unit, as well as a large area reflector 4 and one attached to the vertical support 3 Light source 5, which radiates against the large area reflector 4 at predeterminable angles.
  • ballast 6 is required for the light source 5
  • this ballast 6 is preferably designed as a separate unit, likewise held on the vertical support 3. This has the essential advantage that the ballast is not affected by the heat development of the light source, which is of particular importance for electronic ballasts and increases their long-term functionality.
  • the large-area reflector 4 extends over a substantial part of the width of the working surface 2 and can be designed, for example, in the form of an acute-angled, curved sail, which is realized by means of a tensioning frame 10, which is covered with a suitable reflective material.
  • the large-area reflector 4 is preferably attached to the vertical column 3 via a lockable swivel or ball joint 7 and can be equipped with a suitable counterweight 8.
  • the lockable joint 7 can be telescopically extendable for the height adjustment of the large-area reflector 4, but it is also possible to make a height adjustment by inserting an intermediate piece, since the vertical support 3 preferably consists of modular sections that are to be connected to one another, in particular to be screwed together, both having only the support function possessing individual sections are provided, as well as carrier sections in the form of functional units, such a functional unit comprising, for example, a light source or a ballast.
  • the light source 5 can also be combined with a direct emitter 9, which is also optionally designed to be directional and enables additional small-area irradiation of the work surface with the brightness of the indirect light of corresponding brightness.
  • a direct emitter 9 which is also optionally designed to be directional and enables additional small-area irradiation of the work surface with the brightness of the indirect light of corresponding brightness.
  • Fig. 2 shows in a highly schematic manner a possible embodiment of a connection or interface unit 11, as it can be integrated in the manner of a standard unit in work furniture in the edge or corner area, so that a lighting system according to the invention can then be connected without difficulty and the required stability of the lighting system is ensured by the coupling with the work furniture.
  • the interface unit 11 is shown in FIG. 2 in the left part in a first embodiment provided with a flange 18 and in the right part in a second flange-free embodiment for a pipe coupling.
  • the tubular vertical support 3 is screwed to a coupling sleeve 12, and this coupling sleeve 12 has a conically tapering end which engages in a sleeve 20 which is complementary and either provided with a flange 18 or with an external screw thread and with respect to this sleeve 20 can be fixed by means of a clamping screw member 14.
  • This clamping member 14 engages over an annular shoulder of the coupling sleeve 12 and in this way allows an extremely stable clamping fixation to be achieved by a simple screwing operation.
  • the advantage of this construction is that the outer diameter of all visible cylindrical parts is the same, so that a harmonious connection of the respective vertical support 3 to the connection unit 11 results in the assembled state.
  • the embodiment variant according to FIG. 3 differs from the embodiment according to FIG. 1 essentially in that the large-area reflector 4 is assigned a light source 5 in the form of a tube lamp, which extends over a substantial part of the width of the working surface 2 and possibly downwards can be shielded from the working surface 2 by a preferably adjustable screen.
  • a light source 5 in the form of a tube lamp, which extends over a substantial part of the width of the working surface 2 and possibly downwards can be shielded from the working surface 2 by a preferably adjustable screen.
  • an additional light source 16 for example in the form of a spotlight, can also be attached to the vertical support above the large-area reflector 4 in order to obtain a defined room illumination independently of the individual workplace lighting guaranteed by the lighting system according to the invention.
  • FIG. 4 shows a further embodiment of the invention, in which the light source 5 assigned to the large-area reflector 4 is spaced apart from the vertical support 3 and is designed such that a direct light source 17 can be effective approximately in the region of the center of the work surface 2.
  • the direct light source 17 is preferably identical in terms of the light means used to the light source used to generate the indirect light, in which case a transparent area is provided on the work surface side, which is selected so that there is at least essentially at the work surface for the direct and indirect light gives the same brightness.
  • a direct light source 15 which is preferably designed to be horizontal and / or pivotable in a vertical plane, can optionally or alternatively be integrated in the structure of the vertical support 3 consisting of individual sections can be used optionally without affecting the usable work surface 2.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
  • Lasers (AREA)

Abstract

A lighting system is described for the uniform illumination of restricted working surfaces in which a large area reflector is used which partially spans the working surface and which is for example positioned above the head height of a standing person. This large area reflector is mounted on a vertical support which simultaneously carries the light source required to irradiate this large area reflector.

Description

Die Erfindung betrifft ein Beleuchtungssystem, insbesondere zur gleichmäßigen Ausleuchtung begrenzter Arbeitsflächen, bestehend aus zumindest einer Lichtquelle und einem dieser zugeordneten, die jeweilige Arbeitsfläche zumindest teilweise überspannenden, an wenigstens einem Vertikalträger ge-halterten Großflächenreflektor und zumindest einer im Bereich zwischen Arbeitsfläche und Großflächenreflektor angeordneten, gegen den Großflächenreflektor strahlenden Lichtquelle.The invention relates to a lighting system, in particular for uniformly illuminating limited work surfaces, consisting of at least one light source and an associated large surface reflector, which at least partially spans the respective work surface and is held on at least one vertical support, and at least one arranged in the area between the work surface and large surface reflector the large area reflector radiating light source.

Die Beleuchtung von Arbeitsflächen, insbesondere die Beleuchtung individueller Arbeitsflächen in Form von Schreibtischen, Computerarbeitsplätzen und dergleichen, stellt an die jeweilige Lichtplanung erhebliche Anforderungen, die aufgrund baulicher Gegebenheiten, unzureichender elektrischer Grundinstallation sowie der häufig geforderten Variationsmöglichkeit hinsichtlich der Arbeitsplatzanordnungen nur schwer und häufig nicht optimal zu erfüllen sind.The lighting of work surfaces, in particular the lighting of individual work surfaces in the form of desks, computer workstations and the like, places considerable demands on the respective lighting design, which is difficult and often not optimal due to structural conditions, inadequate basic electrical installation and the frequently required variation in terms of work station arrangements are fulfilled.

Aus der FR-A-1 299 310 ist beispielsweise ein Beleuchtungssystem der eingangs genannten Art bekannt. Zu diesem gehört ein Vertikalträger, an dessen kopfseitigem Ende ein Reflektor vorgesehen ist. An diesem sind, wie dies bei herkömmlichen Schreibtischleuchten üblich ist, zwei Lichtquellen direkt angeordnet, d.h. in den Reflektor sind die Fassungen zur Aufnahme dieser Lampen integriert.From FR-A-1 299 310, for example, a lighting system of the type mentioned is known. This includes a vertical support, at the head end of which a reflector is provided. As is customary with conventional desk lamps, two light sources are arranged directly on this, ie the sockets for receiving these lamps are integrated in the reflector.

Neben den Lichtquellen besitzt das bekannte Beleuchtungssystem eine Wärmestrahlungsquelle, die arbeitsflächenseitig, d.h. im Fußbereich des Vertikalträgers angeordnet ist. Die Wärmestrahlungsquelle ist durch einen Schirm umgeben, mittels dessen die von der Wärmestrahlungsquelle abgegebene Wärmestrahlung auf den Reflektor gerichtet wird, wo sie zusammen mit der Lichtstrahlung gegen die Arbeitsfläche gerichtet wird.In addition to the light sources, the known lighting system has a heat radiation source which is on the work surface, i.e. is arranged in the foot area of the vertical support. The heat radiation source is surrounded by a screen, by means of which the heat radiation emitted by the heat radiation source is directed onto the reflector, where it is directed together with the light radiation against the work surface.

Das bekannte Beleuchtungssystem ist insofern problematisch, als es keine individuelle Anpassung der Beleuchtung an den jeweiligen Arbeitsplatz gestattet und insofern hinsichtlich der bei Computerarbeitsplätzen geforderten Blendfreiheit kritisch ist. Außerdem läßt es keine Veränderung der Position der Arbeitsplätze ohne Beeinträchtigung der Beleuchtungsqualität des betreffenden Arbeitsplatzes zu.The known lighting system is problematic in that it does not allow individual adaptation of the lighting to the respective workplace and is critical in terms of the anti-glare required in computer workplaces. In addition, it does not allow the position of the workplaces to be changed without impairing the lighting quality of the workstation in question.

Aufgabe der vorliegenden Erfindung ist es, ein Beleuchtungssystem der im Oberbegriff des Anspruchs 1 angegebenen Art in der Weise auszubilden, daß ohne das Erfordernis einer den jeweiligen Gesamtraum umfassenden Lichtplanung eine optimale, blendfreie Ausleuchtung des jeweiligen Arbeitsplatzes erzielt wird und dabei keine Beeinträchtigung des nutzbaren Bereichs der Arbeitsfläche in Kauf genommen werden muß. Das Beleuchtungssystem soll außerdem zur Individualisierung des einzelnen Arbeitsplatzes geeignet sein und in seiner Wirksamkeit auch dann nicht beeinträchtigt werden, wenn Änderungen in der jewieligen Position der Arbeitsplätze vorgenommen werden müssen.The object of the present invention is to provide a lighting system of the type specified in the preamble of claim 1 in such a way that an optimal, glare-free illumination of the respective workplace is achieved without the need for light planning which encompasses the respective entire space and thereby does not impair the usable area of the Work surface must be accepted. The lighting system should also be suitable for the individualization of the individual workplace and its effectiveness should not be impaired even if changes have to be made in the respective position of the workplace.

Gelöst wird diese Aufgabe nach der Erfindung im wesentlichen dadurch, daß die Lichtquelle bezüglich der Arbeitsfläche beabstandet am Vertikalträger gehaltert und der Großflächenreflektor am Vertikalträger bezüglich des Abstandes und/oder der Neigung zur Arbeitsfläche verstellbar ist.This object is achieved according to the invention essentially in that the light source is held at a distance from the work surface on the vertical support and the large area reflector on the vertical support is adjustable with respect to the distance and / or the inclination to the work surface.

Aufgrund der Ausnutzung des Vertikalträgers zur Halterung der den Großflächenreflektor zugeordneten Lichtquelle ist es möglich, den Anstrahlwinkel so zu wählen, daß einerseits keinerlei Blendeffekte auftreten und andererseits eine bestmögliche Lichtausbeute über die Reflexion erzielt wird, wobei die Arbeitsfläche selbst in ihrer nutzbaren Größe durch das Beleuchtungssystem in keiner Weise beeinträchtigt wird.Due to the use of the vertical support to hold the light source assigned to the large-area reflector, it is possible to choose the angle of incidence so that on the one hand no glare effects occur and on the other hand the best possible light yield is achieved by reflection, the working surface itself being usable in size by the lighting system in is not affected in any way.

Den individuellen Gegebenheiten und Wünschen hinsichtlich der Arbeitsplatzbeleuchtung kann durch die gegebenen Einstellmöglichkeiten des Großflächenreflektors gegenüber der Arbeitsfläche Rechnung getragen werden, da hierdurch das Beleuchtungssystem dem jeweiligen Arbeitsplatz angepaßt werden kann und eine gleichmäßige Ausleuchtung gewährleistet ist, wenn die Relativlagen und Neigungen in der jeweils erforderlichen Weise eingestellt sind.The individual conditions and wishes with regard to workplace lighting can be taken into account by the given setting options of the large area reflector in relation to the work surface, since this enables the lighting system to be adapted to the respective workplace and uniform illumination is ensured if the relative positions and inclinations are set in the respectively required manner are.

In vorteilhafter Weise ist bei einer weiteren Ausführungsform der Großflächenreflektor in einer Eigenwölbung verstellbar, wodurch in jedem Falle die gewünschte Gleichmäßigkeit der Arbeitsflächenbeleuchtung und auch die gewünschte Helligkeit individuell für den jeweiligen Arbeitsplatz erzielt werden kann.In a further embodiment, the large-area reflector is advantageously adjustable in a self-curvature, as a result of which the desired uniformity of the work area lighting and also the desired brightness can be achieved individually for the respective workplace.

Vorteilhafterweise besteht der Vertikalträger aus miteinander kuppel- und gegenseitig fixierbaren Einzelabschnitten, wobei diese Einzelabschnitte aus Trägerabschnitten und tragenden Funktionsabschnitten für Lichtquellen und Vorschaltgeräte beliebig kombinierbar sind. Die Kupplungen zwischen den Einzelabschnitten sind sowohl als mechanisch stabile Steck-, Rast- oder Schraubverbindungen ausgebildet, und sind vorzugsweise mit elektrischen Kuppeleinheiten versehen, die bei Vornahme der mechanischen Kopplung die notwendigen elektrischen Verbindungen zwangsläufig gewährleisten.The vertical support advantageously consists of individual sections which can be coupled and mutually fixed, these individual sections comprising support sections and supporting functional sections for light sources and ballasts can be combined as desired. The couplings between the individual sections are designed both as mechanically stable plug-in, latching or screw connections, and are preferably provided with electrical coupling units which inevitably ensure the necessary electrical connections when the mechanical coupling is carried out.

Besonders vorteilhaft ist es, in einem Eck- oder Randbereich des jeweiligen Arbeitsmöbels, insbesondere Arbeitstisches, eine mechanisch/elektrische Schnittstelle vorzusehen, mit der der Vertikalträger gekuppelt werden kann. Dabei ist sicherzustellen, daß einerseits die notwendige mechanische Festigkeit erzielt und andererseits unter Beachtung der bestehenden Sicherheitsvorschriften eine einwandfreie elektrische Kontaktgabe gewährleistet ist. Beispielsweise kann die mechanische Kopplung über konisch ineinandergreifende Elemente erfolgen, wobei die elektrischen Verbindungsteile konzentrisch angeordnet sind und die form- und kraftschlüssige Verbindung zwischen den beiden zu koppelnden mechanischen Teilen über eine Schraubhülse erzielt wird. Die elektrischen Anschlußelemente können dabei in Stift-Hülsenform oder auch in Form konzentrischer Kontaktelemente Verwendung finden.It is particularly advantageous to provide a mechanical / electrical interface with which the vertical support can be coupled in a corner or edge area of the respective work furniture, in particular a work table. It must be ensured that, on the one hand, the necessary mechanical strength is achieved and, on the other hand, proper electrical contacting is ensured in compliance with the existing safety regulations. For example, the mechanical coupling can take place via conically interlocking elements, the electrical connection parts being arranged concentrically and the positive and non-positive connection between the two mechanical parts to be coupled being achieved via a screw sleeve. The electrical connection elements can be used in pin-sleeve form or in the form of concentric contact elements.

Im Falle der Verwendung von im Querschnitt rechteckigen Vertikalträgern und entsprechend ausgebildeter Schnittstellen kann eine Diagonalunterteilung in der Weise vorgesehen werden, daß dann ein mechanisch stabiler und alle mechanischen Belastungen aufnehmender Dreieckträger mit einem ebenfalls dreieckigen Aufnahmeraum für die elektrischen Funktionselemente kombiniert wird.In the case of the use of vertical beams with a rectangular cross-section and correspondingly designed interfaces, a diagonal division can be provided in such a way that a mechanically stable triangular beam that absorbs all mechanical loads is combined with a likewise triangular receiving space for the electrical functional elements.

Nach einer weiteren Ausgestaltung der Erfindung ist vorgesehen, daß die dem Großflächenreflektor zugeordnete Lichtquelle gleichzeitig mit wenigstens einem Direktstrahler, einer Direktlichtquelle oder einer sowohl Direktlicht als auch indirektes Licht über den Großflächenreflektor liefernden Lichtquelle kombiniert ist. Gegebenenfalls kann zusätzlich zu dieser Lichtquelle eine getrennte weitere, ebenfalls am Vertikalträger vorzugsweise gehalterte Zusatzlichtquelle verwendet werden. In allen Fällen wird dabei vorzugsweise die Helligkeit so gewählt, daß direktes Licht und reflektiertes Licht gleiche Helligkeit auf der Arbeitsfläche besitzen und somit die typische Weichheit des indirekten Lichts sowie die geforderte Schattenfreiheit auf der gesamten Arbeitsfläche gewährleistet ist.According to a further embodiment of the invention, it is provided that the light source assigned to the large area reflector is combined at the same time with at least one direct emitter, one direct light source or one light source delivering both direct light and indirect light via the large area reflector. If necessary, in addition to this light source, a separate additional light source, which is also preferably held on the vertical support, can be used. In all cases, the brightness is preferably selected so that direct light and reflected light have the same brightness on the work surface, thus ensuring the typical softness of the indirect light and the required absence of shadows on the entire work surface.

Weitere besonders vorteilhafte Ausführungsformen der Erfindung sind in den Unteransprüchen angegeben.Further particularly advantageous embodiments of the invention are specified in the subclaims.

Die Erfindung wird nachfolgend unter Bezugnahme auf die Zeichnung anhand von Ausführungsbeispielen näher erläutert; in der Zeichnung zeigt:

Fig. 1
eine schematische Darstellung einer ersten Ausführungsform eines Beleuchtungssystems nach der Erfindung,
Fig. 2
eine schematische Darstellung einer Schnittstellen-Anschlußeinheit zur Integration in ein Arbeitsmöbel,
Fig. 3
eine Ausführungsvariante des Beleuchtungssystems nach Fig. 1, und
Fig. 4
eine weitere Ausführungsform mit kombinierter direkter und indirekter Beleuchtung einer Arbeitsfläche.
The invention is explained in more detail below with reference to the drawing using exemplary embodiments; in the drawing shows:
Fig. 1
1 shows a schematic illustration of a first embodiment of a lighting system according to the invention,
Fig. 2
1 shows a schematic representation of an interface connection unit for integration into work furniture,
Fig. 3
an embodiment of the lighting system of FIG. 1, and
Fig. 4
a further embodiment with combined direct and indirect lighting of a work surface.

Fig. 1 zeigt als Beispiel für ein Arbeitsmöbel einen Schreibtisch 1 mit einer Arbeitsfläche 2, die mittels des individuell dieser Arbeitsfläche 2 angepaßten Beleuchtungssystems nach der Erfindung entsprechend den jeweiligen Anforderungen mit indirektem und direktem Licht in optimaler Weise ausgeleuchtet wird, da keine störenden Strukturen vorhanden sind und keine Schattenbildung auftritt.Fig. 1 shows an example of a piece of work furniture a desk 1 with a work surface 2, which is illuminated by means of the individually adapted to this work surface 2 lighting system according to the invention in accordance with the respective requirements with indirect and direct light in an optimal way, since there are no disturbing structures and there is no shadow formation.

Das Beleuchtungssystem umfaßt dabei einen Vertikalträger 3, welcher mit einem stabilen Standfuß versehen sein kann, jedoch vorzugsweise über eine Schnittstellen-Anschlußeinheit direkt mit dem Schreibtisch 1 gekoppelt ist, sowie einen am Vertikalträger 3 befestigten Großflächenreflektor 4 und eine Lichtquelle 5, die unter vorgebbaren Winkeln gegen den Großflächenreflektor 4 strahlt.The lighting system comprises a vertical support 3, which can be provided with a stable base, but is preferably coupled directly to the desk 1 via an interface connection unit, as well as a large area reflector 4 and one attached to the vertical support 3 Light source 5, which radiates against the large area reflector 4 at predeterminable angles.

Ist für die Lichtquelle 5 ein Vorschaltgerät 6 erforderlich, so wird dieses Vorschaltgerät 6 vorzugsweise als separate, ebenfalls am Vertikalträger 3 gehalterte Einheit ausgebildet. Dies hat den wesentlichen Vorteil, daß das Vorschaltgerät nicht durch die Wärmeentwicklung der Lichtquelle beeinträchtigt wird, was für elektronische Vorschaltgeräte von besonderer Bedeutung ist und deren Dauerfunktionstüchtigkeit erhöht.If a ballast 6 is required for the light source 5, this ballast 6 is preferably designed as a separate unit, likewise held on the vertical support 3. This has the essential advantage that the ballast is not affected by the heat development of the light source, which is of particular importance for electronic ballasts and increases their long-term functionality.

Der Großflächenreflektor 4 erstreckt sich über einen wesentlichen Teil der Breite der Arbeitsfläche 2 und kann beispielsweise in Form eines spitzwinkligen, gekrümmten Segels ausgebildet sein, das mittels eines Spannrahmens 10 realisiert ist, welcher mit einem geeigneten reflektierenden Material bezogen ist.The large-area reflector 4 extends over a substantial part of the width of the working surface 2 and can be designed, for example, in the form of an acute-angled, curved sail, which is realized by means of a tensioning frame 10, which is covered with a suitable reflective material.

Der Großflächenreflektor 4 ist an der Vertikalsäule 3 vorzugsweise über ein feststellbares Schwenk- oder Kugelgelenk 7 befestigt und kann mit einem geeigneten Gegengewicht 8 ausgestattet sein.The large-area reflector 4 is preferably attached to the vertical column 3 via a lockable swivel or ball joint 7 and can be equipped with a suitable counterweight 8.

Das feststellbare Gelenk 7 kann zur Höhenverstellung des Großflächenreflektors 4 teleskopartig ausfahrbar angebracht sein, aber es ist auch möglich, eine Höhenverstellung durch Einfügen eines Zwischenstücks vorzunehmen, da der Vertikalträger 3 vorzugsweise aus baukastenartig miteinander zu verbindenden, insbesondere zu verschraubenden Einzelabschnitten besteht, wobei sowohl nur Trägerfunktion besitzende Einzelabschnitte vorgesehen sind, als auch Trägerabschnitte in Form von Funktionseinheiten, wobei eine solche Funktionseinheit beispielsweise eine Lichtquelle oder ein Vorschaltgerät umfaßt.The lockable joint 7 can be telescopically extendable for the height adjustment of the large-area reflector 4, but it is also possible to make a height adjustment by inserting an intermediate piece, since the vertical support 3 preferably consists of modular sections that are to be connected to one another, in particular to be screwed together, both having only the support function possessing individual sections are provided, as well as carrier sections in the form of functional units, such a functional unit comprising, for example, a light source or a ballast.

Gegebenenfalls kann die Lichtquelle 5 auch noch mit einem Direktstrahler 9 kombiniert sein, der ggf. auch richtbar ausgebildet ist und eine zusätzliche Kleinflächenbestrahlung der Arbeitsfläche mit der Helligkeit des indirekten Lichts entsprechender Helligkeit ermöglicht.Optionally, the light source 5 can also be combined with a direct emitter 9, which is also optionally designed to be directional and enables additional small-area irradiation of the work surface with the brightness of the indirect light of corresponding brightness.

Fig. 2 zeigt in stark schematisierter Weise eine mögliche Ausführungsform einer Anschluß- bzw. Schnittstelleneinheit 11, wie sie nach Art einer Standardeinheit in ein Arbeitsmöbel im Rand- oder Eckbereich integriert werden kann, so daß dann ohne Schwierigkeiten ein Beleuchtungssystem nach der Erfindung angeschlossen werden kann und die erforderliche Stabilität des Beleuchtungssystems durch die Kopplung mit dem Arbeitsmöbel gewährleistet ist.Fig. 2 shows in a highly schematic manner a possible embodiment of a connection or interface unit 11, as it can be integrated in the manner of a standard unit in work furniture in the edge or corner area, so that a lighting system according to the invention can then be connected without difficulty and the required stability of the lighting system is ensured by the coupling with the work furniture.

Die Schnittstelleneinheit 11 ist in Fig. 2 im linken Teil in einer ersten, mit einem Flansch 18 versehenen Ausführungsform und im rechten Teil in einer zweiten, flanschfreien Ausführungsform für eine Rohrkopplung gezeigt.The interface unit 11 is shown in FIG. 2 in the left part in a first embodiment provided with a flange 18 and in the right part in a second flange-free embodiment for a pipe coupling.

In beiden Ausführungsvarianten wird der rohrförmige Vertikalträger 3 mit einer Kuppelhülse 12 verschraubt, und diese Kuppelhülse 12 besitzt ein sich konisch verjüngendes Ende, das in eine komplementär ausgebildete, entweder mit einem Flansch 18 oder einem Außen- Schraubgewinde versehene Hülse 20 eingreift und bezüglich dieser Hülse 20 mittels eines Spann-Schrauborgans 14 fixierbar ist. Dieses Spannorgan 14 übergreift einen Ringansatz der Kuppelhülse 12 und gestattet es auf diese Weise, durch einen einfachen Schraubvorgang eine äußerst stabile Klemmfixierung zu erzielen. Von Vorteil ist bei dieser Konstruktion, daß der Außendurchmesser aller sichtbaren zylindrischen Teile gleich ist, so daß sich im montierten Zustand ein harmonischer Anschluß des jeweiligen Vertikalträgers 3 an der Anschlußeinheit 11 ergibt.In both variants, the tubular vertical support 3 is screwed to a coupling sleeve 12, and this coupling sleeve 12 has a conically tapering end which engages in a sleeve 20 which is complementary and either provided with a flange 18 or with an external screw thread and with respect to this sleeve 20 can be fixed by means of a clamping screw member 14. This clamping member 14 engages over an annular shoulder of the coupling sleeve 12 and in this way allows an extremely stable clamping fixation to be achieved by a simple screwing operation. The advantage of this construction is that the outer diameter of all visible cylindrical parts is the same, so that a harmonious connection of the respective vertical support 3 to the connection unit 11 results in the assembled state.

Die Ausführungsvariante nach Fig. 3 unterscheidet sich von der Ausführungsform nach Fig. 1 im wesentlichen dadurch, daß dem Großflächenreflektor 4 eine Lichtquelle 5 in Form einer Röhrenleuchte zugeordnet ist, die sich über einen wesentlichen Teil der Breite der Arbeitsfläche 2 erstreckt und ggf. nach unten zur Arbeitsfläche 2 hin durch eine vorzugsweise verstellbare Blende abgeschirmt sein kann.The embodiment variant according to FIG. 3 differs from the embodiment according to FIG. 1 essentially in that the large-area reflector 4 is assigned a light source 5 in the form of a tube lamp, which extends over a substantial part of the width of the working surface 2 and possibly downwards can be shielded from the working surface 2 by a preferably adjustable screen.

Außerdem ist in Fig. 3 gezeigt, daß an dem Vertikalträger auch oberhalb des Großflächenreflektors 4 noch eine Zusatzlichtquelle 16, beispielsweise in Form eines Strahlers angebracht werden kann, um unabhängig von der durch das erfindungsgemäße Beleuchtungssystem gewährleisteten individuellen Arbeitsplatzbeleuchtung eine definierte Raumausleuchtung zu erhalten.In addition, it is shown in FIG. 3 that an additional light source 16, for example in the form of a spotlight, can also be attached to the vertical support above the large-area reflector 4 in order to obtain a defined room illumination independently of the individual workplace lighting guaranteed by the lighting system according to the invention.

Fig. 4 zeigt eine weitere Ausführungsform der Erfindung, bei der die dem Großflächenreflektor 4 zugeordnete Lichtquelle 5 bezüglich des Vertikalträgers 3 beabstandet und so ausgebildet ist, daß etwa im Bereich der Mitte der Arbeitsfläche 2 eine Direktlichtquelle 17 wirksam werden kann.FIG. 4 shows a further embodiment of the invention, in which the light source 5 assigned to the large-area reflector 4 is spaced apart from the vertical support 3 and is designed such that a direct light source 17 can be effective approximately in the region of the center of the work surface 2.

Die Direktlichtquelle 17 ist vorzugsweise hinsichtlich der verwendeten Lichtmittel identisch mit der zur Erzeugung des indirekten Lichtes verwendeten Lichtquelle, wobei in diesem Falle arbeitsflächenseitig ein Transparentbereich vorgesehen ist, der so gewählt wird, daß sich auf der Arbeitsfläche für das direkte und das indirekte Licht zumindest im wesentlichen gleiche Helligkeit ergibt.The direct light source 17 is preferably identical in terms of the light means used to the light source used to generate the indirect light, in which case a transparent area is provided on the work surface side, which is selected so that there is at least essentially at the work surface for the direct and indirect light gives the same brightness.

Außerdem ist in dieser Darstellung gezeigt, daß in dem aus Einzelabschnitten bestehenden Aufbau des Vertikalträgers 3 ggf. alternativ oder zusätzlich eine Direktlichtquelle 15 integriert werden kann, die vorzugweise horizontal und/oder in einer Vertikalebene verschwenkbar ausgebildet ist und somit ohne Beeinträchtigung der nutzbaren Arbeitsfläche 2 wahlweise zum Einsatz gebracht werden kann.In addition, it is shown in this illustration that a direct light source 15, which is preferably designed to be horizontal and / or pivotable in a vertical plane, can optionally or alternatively be integrated in the structure of the vertical support 3 consisting of individual sections can be used optionally without affecting the usable work surface 2.

Claims (19)

  1. Lighting system, in particular for the uniform illumination of restricted working areas,
    comprising at least one light source and a large area reflector (4) associated with the light source and which at least partly spans the respective working surface (2) and which is held on at least one vertical support (3), and at least one light source (5) which radiates towards the large area reflector (4) and which is arranged in the region between the working surface (2) and the large area reflector (4),
    characterised in that
    the light source (5) is mounted on the vertical support (3) at a spacing with respect to the working surface (2), and in that the large area reflector (4) is adjustable on the vertical support (3) with respect to the spacing from and/or the inclination to the working surface (2).
  2. Lighting system in accordance with claim 1,
    characterised in that
    the inherent curvature of the large area reflector (4) is adjustable.
  3. Lighting system in accordance with one of the preceding claims,
    characterised in that
    the large area reflector (4) comprises a frame (10) which is covered with a reflecting material under tension.
  4. Lighting system in accordance with one of the preceding claims,
    characterised in that
    the large area reflector (4) is formed in the manner of a triangular sail and is secured to the vertical support (3) in the region of its pointedly converging end by means of
    a fixing hinge (7) .
  5. Lighting system in accordance with claim 4,
    characterised in that
    the fixing hinge (7) is formed in the manner of a fixable pivot joint or ball joint.
  6. Lighting system in accordance with one of the preceding claims,
    characterised in that
    the large area reflector (4) is provided with a counterweight (8) which is preferably adjustable relative to the fixing hinge (7).
  7. Lighting system in accordance with one of the preceding claims,
    characterised in that
    the light source (5) is vertically adjustably and/or pivotally mounted and fixable on the vertical support (3).
  8. Lighting system in accordance with one of the preceding claims,
    characterised in that
    a ballast device (6) necessary for the particular light source (5) is formed as a separate unit which is likewise mounted on the vertical support (3).
  9. Lighting system in accordance with one or more of the preceding claims,
    characterised in that
    the vertical support (3) comprises individual sections which can be coupled together and mutually fixed, and in that support sections and supporting functional sections for the light sources (5) and ballast devices (6) are selectively combinable as individual sections.
  10. Lighting system in accordance with one or more of the preceding claims,
    characterised in that
    the vertical support (3) is at least capable of being mechanically coupled with a connection unit (11) provided in an edge region of the working surface or in a corner region of the working surface.
  11. Lighting system in accordance with claim 10,
    characterised in that
    the connection unit (11) is formed as a mechanical/electrical interface.
  12. Lighting system in accordance with one of the preceding claims,
    characterised in that
    a direct light source (15), in particular a direct light source which is horizontally and/or vertically pivotable is mounted on the vertical support (3) in the region between the working surface (2) and the light source (5) associated with the large area reflector (4).
  13. Lighting system in accordance with one of the claims 1 to 11,
    characterised in that
    the light source (5) associated with the large area reflector (4) simultaneously has a direct spot light (9) or a direct light source (17).
  14. Lighting system in accordance with one or more of the preceding claims,
    characterised in that
    the light source associated with the large area reflector (4) is adjustable in its distance to the vertical support (3) by displacement and/or by pivoting.
  15. Lighting system in accordance with one of the preceding claims,
    characterised in that
    the light source (5) associated with the large area reflector (4) is of tubular construction and extends, starting from the region of the vertical support (3) arranged to the side of the working surface (2) over at least half of the width of the working surface.
  16. Lighting system in accordance with one of the preceding claims,
    characterised in that
    the large area reflector (4) extends at least substantially over approximately 2/3 of the width of the working surface (2).
  17. Lighting system in accordance with one or more of the preceding claims,
    characterised in that
    the brightness of the indirect light directed towards the working surface (2) via the large area reflector (4) is at least substantially the same as the brightness of the light coming from a direct light source.
  18. Lighting system in accordance with one of the preceding claims,
    characterised in that
    the connection unit (11) for the interface installation is provided with a sleeve having a flange (18), with the sleeve having a conical mount for a coupling sleeve (12) which is fixable by means of a threaded tensioning element and which has an external thread at its free end which can be screwed to the vertical support (3).
  19. Lighting system in accordance with claim 18,
    characterised in that
    for coupling of the vertical support (3) onto a tube mount, the sleeve has an external thread for the screw connection with the corresponding tube mount in place of a connection flange.
EP89111250A 1988-06-21 1989-06-20 Lighting system Expired - Lifetime EP0347867B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3820926A DE3820926A1 (en) 1988-06-21 1988-06-21 LIGHTING SYSTEM
DE3820926 1988-06-21

Publications (3)

Publication Number Publication Date
EP0347867A2 EP0347867A2 (en) 1989-12-27
EP0347867A3 EP0347867A3 (en) 1990-06-13
EP0347867B1 true EP0347867B1 (en) 1994-10-12

Family

ID=6356921

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89111250A Expired - Lifetime EP0347867B1 (en) 1988-06-21 1989-06-20 Lighting system

Country Status (4)

Country Link
US (1) US4991065A (en)
EP (1) EP0347867B1 (en)
AT (1) ATE112837T1 (en)
DE (2) DE3820926A1 (en)

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DE9006883U1 (en) * 1990-06-19 1990-08-23 Siemens AG, 1000 Berlin und 8000 München Reflector arrangement
EP0583392B1 (en) * 1991-05-09 1998-03-04 Nu-Tech And Engineering, Inc. Instrument display panel for passenger vehicle
US5647661A (en) * 1992-01-14 1997-07-15 Musco Corporation High efficiency, highly controllable lighting apparatus and method
US5402327A (en) * 1992-01-14 1995-03-28 Musco Corporation Means and method for highly controllable lighting
US5595440A (en) * 1992-01-14 1997-01-21 Musco Corporation Means and method for highly controllable lighting of areas or objects
US5337221A (en) * 1992-01-14 1994-08-09 Musco Corporation Means and method for highly controllable lighting
US5519590A (en) * 1992-01-14 1996-05-21 Musco Corporation Means and method for highly controllable lighting
IT1269929B (en) * 1994-03-28 1997-04-16 Status Srl HIGH-QUALITY LIGHTING TABLE OR FLOOR LAMP
SE511449C2 (en) * 1997-04-08 1999-10-04 Gerhard Rehm Lighting fixtures for lighting large areas outdoors, in halls or the like
US6264342B1 (en) * 1999-07-27 2001-07-24 Vh Lichttechnische Spezialgerate Gmbh Illuminating device
DE19943480B4 (en) * 1999-09-10 2005-03-17 Manfred Kluth Luminaire for indirect lighting
US7686482B2 (en) * 2007-05-11 2010-03-30 Ructurelab GmbH Lamp with sail-like overhead element, preferably for improving acoustics, room formation, and indirect lighting of workplaces
US10422504B2 (en) * 2014-08-31 2019-09-24 Abl Ip Holding, Llc Luminaire for illuminating a task surface and providing additional diffuse proximity lighting
US10539278B2 (en) * 2014-08-31 2020-01-21 Abl Ip Holding, Llc Luminaire for creating effective proximity lighting in a low ambient lighting environment
CN105042478B (en) * 2015-08-04 2019-05-17 漳州立达信光电子科技有限公司 LED illumination lamp

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DE3416161A1 (en) * 1984-05-02 1985-11-07 Bitsch, Hans-Ulrich, Prof. Dipl.-Designer, 4000 Düsseldorf Device for indirect ambient lighting

Also Published As

Publication number Publication date
DE58908487D1 (en) 1994-11-17
EP0347867A3 (en) 1990-06-13
EP0347867A2 (en) 1989-12-27
DE3820926A1 (en) 1989-12-28
ATE112837T1 (en) 1994-10-15
US4991065A (en) 1991-02-05

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