EP1995512A2 - Lighting assembly, in particular for lighting a workplace with active noise control system - Google Patents

Lighting assembly, in particular for lighting a workplace with active noise control system Download PDF

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Publication number
EP1995512A2
EP1995512A2 EP08153721A EP08153721A EP1995512A2 EP 1995512 A2 EP1995512 A2 EP 1995512A2 EP 08153721 A EP08153721 A EP 08153721A EP 08153721 A EP08153721 A EP 08153721A EP 1995512 A2 EP1995512 A2 EP 1995512A2
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EP
European Patent Office
Prior art keywords
lamp
lighting
acoustic
lighting arrangement
signal
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.)
Withdrawn
Application number
EP08153721A
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German (de)
French (fr)
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EP1995512A3 (en
Inventor
Manfred Petschulat
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 Austria
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Zumtobel Lighting GmbH Austria
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Application filed by Zumtobel Lighting GmbH Austria filed Critical Zumtobel Lighting GmbH Austria
Publication of EP1995512A2 publication Critical patent/EP1995512A2/en
Publication of EP1995512A3 publication Critical patent/EP1995512A3/en
Withdrawn legal-status Critical Current

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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
    • F21S6/005—Lighting devices intended to be free-standing with a lamp housing maintained at a distance from the floor or ground via a support, e.g. standing lamp for ambient lighting
    • F21S6/006—Lighting devices intended to be free-standing with a lamp housing maintained at a distance from the floor or ground via a support, e.g. standing lamp for ambient lighting for direct lighting only, e.g. task 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
    • F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
    • F21V33/0004—Personal or domestic articles
    • F21V33/0052—Audio or video equipment, e.g. televisions, telephones, cameras or computers; Remote control devices therefor
    • F21V33/0056—Audio equipment, e.g. music instruments, radios or speakers
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
    • G10K11/1785—Methods, e.g. algorithms; Devices
    • G10K11/17857—Geometric disposition, e.g. placement of microphones
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
    • G10K11/1787—General system configurations
    • G10K11/17873—General system configurations using a reference signal without an error signal, e.g. pure feedforward
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
    • G10K11/1787—General system configurations
    • G10K11/17879—General system configurations using both a reference signal and an error signal
    • G10K11/17881—General system configurations using both a reference signal and an error signal the reference signal being an acoustic signal, e.g. recorded with a microphone
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
    • G10K2210/10—Applications
    • G10K2210/12—Rooms, e.g. ANC inside a room, office, concert hall or automobile cabin

Definitions

  • the present invention relates to a lighting arrangement, in particular in the form of a floor lamp, a table lamp or a suspended workstation lamp for illuminating a workplace.
  • Luminaires of this type are used, for example, in open-plan offices, since they offer the possibility of individually illuminating the individual workstations in accordance with the wishes of the users in addition to the general illumination of the room. Such individual illumination would be difficult to realize with the general lighting of a large office, so that the working comfort is significantly improved by these special table or floor lamps or general workplace lights.
  • the present invention is based on the object of specifying a novel solution which contributes to the creation of optimal working conditions, especially in open-plan offices.
  • the lighting should be optimized and on the other hand the noise pollution should be reduced.
  • the solution according to the invention is based on the concept of so-called active sound insulation.
  • this concept of active sound insulation is that by emitting acoustic signals, attempts are made to reduce the noise level present at a specific workstation or, more generally, in a specific area. This is achieved in that a phase-shifted, actively transmitted via loudspeaker counter-noise for extinction or at least a reduction of the natural noise signal provides. In any case, this at least a masking of the intelligibility of originating from the environment speech noise is achieved, which means that the general noise in the open-plan offices significantly more disturbing effect on the individual work situation.
  • the means for lighting, the means for delivering the acoustic counter-signal and the control unit in a lamp, eg. A floor lamp, a table lamp or a workstation light integrated.
  • the acoustic detection to take place by means of a microphone separate from the luminaire, which is then preferably connected to the control unit via a wireless communication connection, for example a radio connection or a connection according to the known Bluetooth standard.
  • the output of the acoustic counter signal is preferably via one or more speakers. These can be arranged in particular immediately after a Lichtabstrahlelement the light for light output. In this way it is achieved that both the light emitted by the light and the sound counter signal are directed to the same area, namely the work area.
  • Fig. 1 shows the generally provided with the reference numeral 1 inventive system which is used to illuminate a workstation 100.
  • This workstation 100 is shown in the present case as a desktop workstation, wherein on the desk 101, a PC 102 is positioned.
  • a work area 103 is defined, which serves, for example, for creating or reading documents or documents.
  • this work area 103 in particular should be a particularly optimal lighting.
  • a lamp 5 which is designed in the present case as a floor lamp.
  • a table lamp positioned directly on the table top or a so-called suspended workstation lamp could also be used.
  • Shine the in Fig. 1 shown type are known in a variety of variants. They offer the opportunity to illuminate a smaller area individually in order to create optimal working conditions in this area.
  • Light 5 shown therein also illuminate the work area 103. It is thus directed via a light source 5 arranged in the light source - possibly by means of appropriate light emitting elements - light in the desired manner to the work area 103.
  • a further function of the illumination arrangement 1 according to the invention is now to ensure optimum working conditions within this working area 103, also with regard to the acoustic conditions.
  • the present noise level has a disruptive effect on the work activity.
  • Particularly problematic is the voice noise from neighboring workplaces, as this can affect the concentration particularly.
  • the lighting arrangement 1 causes an active noise reduction at the workstation 100.
  • This active noise reduction is based on the well-known concept of cancellation of wave signals due to superposition effects.
  • the active transmission of antiphase signals ensures that the original shutter signal and the counter signal are superimposed in such a way that ultimately an overall reduction of the sound or noise level is achieved. Accordingly, it is therefore provided that not only light but also a sound signal is emitted by the lamp 5, with the help of which the noise pollution is reduced.
  • the lamp 5 in addition to a - in the illustrated embodiment - large-area Lichtabstrahlelement 6 for light output additional speakers 7, via which the sound counter signal is to be delivered.
  • the speakers 7 are preferably arranged adjacent to the light emitting element 6, wherein it is provided that both the light and the counter sound signal are emitted in the same direction, that is to be directed onto the working area 103.
  • the concept of active noise reduction is based on the fact that a phase-shifted counter signal is intentionally emitted to the ambient noise. For this purpose, it is therefore first necessary for the noise originating in the working area 103 to be detected.
  • a corresponding microphone 8 is arranged on the lamp 5, which in turn selectively to the work area 103rd is directed.
  • the signals detected by the microton 8 are transmitted to a control unit 9 integrated in the light 5, which performs a corresponding control of the loudspeakers 7.
  • the sound counter signal emitted via the loudspeakers 7 then ensures at least partial cancellation of the ambient noise. At least it is achieved in this way that the particularly annoying speech noise is modified / attenuated so that the intelligibility is lowered.
  • the concentration of a person staying in the workplace 100 is significantly less affected.
  • the active noise reduction can be activated separately from the light output by the light 5. Accordingly, it is possible for a user to optionally determine whether a sound reduction should be made or not. Alternatively, however, it would also be conceivable that, in principle, when the light source of the luminaire 5 is activated, a sound counter signal is emitted via the loudspeaker 7.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • General Engineering & Computer Science (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)

Abstract

The device has a unit for lighting an illumination area, a microphone (8) for acoustic detection of sound signals available in the illumination area, and a loudspeaker (7) for issuing acoustic counter signals in the illumination area. A control unit (9) is provided for regulating an acoustic counter signals issuing unit in such a manner that the sound is reduced by the acoustic counter signals inside an illumination region. The lighting unit, loudspeaker and control unit are integrated in a lamp (5).

Description

Die vorliegende Erfindung betrifft eine Beleuchtungsanordnung, insbesondere in Form einer Stehleuchte, einer Tischleuchte oder einer abgependelten Arbeitsplatzleuchte zum Beleuchten eines Arbeitsplatzes.The present invention relates to a lighting arrangement, in particular in the form of a floor lamp, a table lamp or a suspended workstation lamp for illuminating a workplace.

Leuchten dieser Art kommen beispielsweise in Großraumbüros zum Einsatz, da Sie die Möglichkeit bieten, zusätzlich zu der allgemeinen Beleuchtung des Raums die einzelnen Arbeitsplätze entsprechend den Wünschen der Benutzer individuell auszuleuchten. Eine derartige individuelle Ausleuchtung wäre mit der allgemeinen Beleuchtung eines Großraumbüros nur schwer zu realisieren, so dass der Arbeitskomfort durch diese speziellen Tisch- oder Stehleuchten bzw. allgemein Arbeitsplatzleuchten deutlich verbessert wird.Luminaires of this type are used, for example, in open-plan offices, since they offer the possibility of individually illuminating the individual workstations in accordance with the wishes of the users in addition to the general illumination of the room. Such individual illumination would be difficult to realize with the general lighting of a large office, so that the working comfort is significantly improved by these special table or floor lamps or general workplace lights.

Neben den lichttechnischen Problemen, die sich bei der Ausleuchtung von Großraumbüros mit einer Vielzahl von Arbeitsplätzen stellen, besteht ein weiteres Problem in der akustischen Situation. Aufgrund der vielen Personen, die gleichzeitig in einem entsprechenden Raum arbeiten, liegt generell ein verhältnismäßig hoher Geräuschpegel vor, der ein konzentriertes Arbeiten verhindert bzw. zumindest erschwert. Um dieses Problem zu reduzieren, wurden derartige Räume in der Vergangenheit mit akustisch dämmenden Flächen, insbesondere speziell ausgestalteten Decken ausgestattet. Aufgrund der Veränderung der Raumsituation sowie der zunehmenden Tendenz, Energie zu sparen, sind allerdings derartige Lösungen immer weniger anwendbar, da z.B. eine akustisch wirksame Decke die thermisch aktivierte Rohdecke abisolieren und dementsprechend unwirksam machen würde. Dementsprechend wird nunmehr oftmals versucht, das akustische Problem dadurch zu lösen, dass soviel Dämmung wie möglich über andere Elemente, wie z.B. Möbel und dgl. erfolgt. Auch diese Vorgehensweise ist allerdings in entsprechenden Großraumbüros oftmals nicht anwendbar.In addition to the lighting problems that arise in the illumination of open-plan offices with a variety of jobs, there is another problem in the acoustic situation. Due to the many people who work simultaneously in a corresponding room, there is generally a relatively high noise level, which prevents concentrated work or at least makes it difficult. In order to reduce this problem, such rooms have in the past been provided with acoustically insulating surfaces, in particular specially designed ceilings. However, due to the change in the room situation and the increasing tendency to save energy, such solutions are becoming less and less applicable, as e.g. an acoustically effective ceiling would strip the thermally activated raw ceiling and render it ineffective accordingly. Accordingly, it is now often attempted to solve the acoustic problem by providing as much insulation as possible over other elements, such as e.g. Furniture and the like. Is done. However, this procedure is often not applicable in corresponding open-plan offices.

Der vorliegenden Erfindung liegt nunmehr die Aufgabe zugrunde, eine neuartige Lösung anzugeben, welche zur Schaffung optimaler Arbeitsbedingungen insbesondere in Großraumbüros beiträgt. Hierbei soll einerseits die Beleuchtung optimiert und andererseits die Geräuschbelastung reduziert werden.The present invention is based on the object of specifying a novel solution which contributes to the creation of optimal working conditions, especially in open-plan offices. On the one hand the lighting should be optimized and on the other hand the noise pollution should be reduced.

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

Die erfindungsgemäße Lösung beruht auf dem Konzept der sog. aktiven Schalldämmung. Grundsätzlich besteht dieses Konzept der aktiven Schalldämmung darin, dass durch Ausstrahlen akustischer Signale versucht wird, den an einem bestimmten Arbeitsplatz bzw. allgemein in einem bestimmten Bereich vorliegenden Geräuschpegel zu reduzieren. Dies wird dadurch erreicht, dass ein phasenverschobenes, aktiv über Lautsprecher ausgestrahltes Gegengeräusch für eine Auslöschung bzw. zumindest eine Reduktion des natürlichen Geräuschsignals sorgt. In jedem Fall wird hierdurch zumindest eine Maskierung der Verständlichkeit des aus der Umgebung stammenden Sprachlärms erzielt, was dazu führt, dass das allgemeine Geräusch in den Großraumbüros sich deutlich störender auf die individuelle Arbeitssituation auswirkt.The solution according to the invention is based on the concept of so-called active sound insulation. Basically, this concept of active sound insulation is that by emitting acoustic signals, attempts are made to reduce the noise level present at a specific workstation or, more generally, in a specific area. This is achieved in that a phase-shifted, actively transmitted via loudspeaker counter-noise for extinction or at least a reduction of the natural noise signal provides. In any case, this at least a masking of the intelligibility of originating from the environment speech noise is achieved, which means that the general noise in the open-plan offices significantly more disturbing effect on the individual work situation.

Es wird nunmehr vorgeschlagen, diese Maßnahmen zur aktiven Schalldämmung in eine Beleuchtungsanordnung zu integrieren, so dass über eine einzige Vorrichtung die Beleuchtung individuell angepasst und die Arbeitsituation zusätzlich aufgrund einer reduzierten Lärmbelästigung optimiert wird.It is now proposed to integrate these measures for active sound insulation in a lighting arrangement, so that individually adapted via a single device, the lighting and the work situation is additionally optimized due to reduced noise pollution.

Dementsprechend wird gemäß der vorliegenden Erfindung eine Beleuchtungsanordnung, insbesondere in Form einer Stehleuchte, einer Tischleuchte oder einer abgependelten Arbeitsplatzleuchte zum Beleuchten eines Arbeitsplatzes vorgeschlagen, welche aufweist:

  • Mittel zum Beleuchten eines Beleuchtungsbereichs,
  • Mittel zum akustischen Erfassen eines in dem Beleuchtungsbereich vorliegenden Schallsignals,
  • Mittel zur Abgabe eines akustischen Gegen-Signals in den Beleuchtungsbereich sowie
  • eine Steuereinheit zur Ansteuerung der Mittel zur Abgabe des akustischen Gegen-Signals derart, dass durch das akustische Gegen-Signal innerhalb des Beleuchtungsbereichs der Schall reduziert wird.
Accordingly, according to the present invention, a lighting arrangement, in particular in the form of a floor lamp, a table lamp or a suspended workstation luminaire for illuminating a workstation is proposed which comprises:
  • Means for illuminating a lighting area,
  • Means for acoustically detecting a sound signal present in the illumination area,
  • Means for delivering an acoustic counter-signal in the lighting area and
  • a control unit for controlling the means for outputting the acoustic counter signal such that the sound is reduced by the acoustic counter signal within the illumination range.

Vorzugsweise sind die Mittel zum Beleuchten, die Mittel zur Abgabe des akustischen Gegen-Signals sowie die Steuereinheit in eine Leuchte, bspw. eine Stehleuchte, eine Tischleuchte oder eine Arbeitsplatzleuchte integriert. Ferner kann auch vorgesehen sein, dass die Erfassungsmittel in Form eines Mikrofons in die Leuchte integriert bzw. an der Leuchte angeordnet sind. Diese Losung bietet sich insbesondere dann an, wenn die Leuchte sehr nahe an dem Bereich, der beleuchtet werden und in dem die Lärmbelästigung reduziert werden soll, positioniert ist, also bspw. bei Tischleuchten. Alternativ hierzu wäre es allerdings auch möglich, dass die akustische Erfassung durch ein von der Leuchte getrenntes Mikrofon erfolgt, welches dann vorzugsweise mit der Steuereinheit über eine drahtlose Kommunikationsverbindung, bspw. eine Funkverbindung oder eine Verbindung gemäß dem bekannten Bluetooth-Standard in Verbindung steht.Preferably, the means for lighting, the means for delivering the acoustic counter-signal and the control unit in a lamp, eg. A floor lamp, a table lamp or a workstation light integrated. Furthermore, it can also be provided that the detection means in the form of a microphone integrated into the lamp or are arranged on the lamp. This solution is particularly useful when the lamp is positioned very close to the area to be illuminated and in which the noise pollution is to be reduced, ie, for example, in table lamps. Alternatively, however, it would also be possible for the acoustic detection to take place by means of a microphone separate from the luminaire, which is then preferably connected to the control unit via a wireless communication connection, for example a radio connection or a connection according to the known Bluetooth standard.

Die Ausgabe des akustischen Gegensignals erfolgt vorzugsweise über ein oder mehrere Lautsprecher. Diese können insbesondere unmittelbar anschließend an ein Lichtabstrahlelement der Leuchte zur Lichtabgabe angeordnet sein. Auf diesem Wege wird erreicht, dass sowohl das von der Leuchte abgegebene Licht als auch das Schall-Gegensignal auf den gleichen Bereich, nämlich den Arbeitsbereich gerichtet werden.The output of the acoustic counter signal is preferably via one or more speakers. These can be arranged in particular immediately after a Lichtabstrahlelement the light for light output. In this way it is achieved that both the light emitted by the light and the sound counter signal are directed to the same area, namely the work area.

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

Fig. 1
die Anordnung und Funktionsweise einer erfindungsgemäßen Beleuchtungsanordnung zur Ausleuchtung eines Schreibtisch-Arbeitsplatzes sowie
Fig. 2
die nähere Ausgestaltung einer erfindungsgemäßen Leuchte.
The invention will be explained in more detail with reference to the accompanying drawings. Show it:
Fig. 1
the arrangement and operation of a lighting arrangement according to the invention for the illumination of a desk-workstation and
Fig. 2
the detailed embodiment of a lamp according to the invention.

Fig. 1 zeigt das allgemein mit dem Bezugszeichen 1 versehene erfindungsgemäße System, welches zur Ausleuchtung eines Arbeitsplatzes 100 dient. Dieser Arbeitsplatz 100 ist im vorliegenden Fall als Schreibtisch-Arbeitsplatz dargestellt, wobei auf dem Schreibtisch 101 ein PC 102 positioniert ist. Vor diesem PC 102 bzw. seitlich daneben davon ist ein Arbeitsbereich 103 definiert, der bspw. zur Erstellung bzw. zum Lesen von Unterlagen oder Dokumenten dient. Innerhalb dieses Arbeitsbereichs 103 sollte insbesondere eine besonders optimale Beleuchtung vorliegen. Fig. 1 shows the generally provided with the reference numeral 1 inventive system which is used to illuminate a workstation 100. This workstation 100 is shown in the present case as a desktop workstation, wherein on the desk 101, a PC 102 is positioned. In front of this PC 102 or laterally therefrom, a work area 103 is defined, which serves, for example, for creating or reading documents or documents. Within this work area 103 in particular should be a particularly optimal lighting.

Die Beleuchtung dieses Arbeitsbereichs 103 erfolgt über eine Leuchte 5, die im vorliegenden Fall als Stehleuchte ausgeführt ist. In gleicher Weise könnte allerdings auch eine unmittelbar auf der Tischplatte positionierte Tischleuchte oder eine sog. abgependelte Arbeitsplatzleuchte zum Einsatz kommen. Leuchten der in Fig. 1 dargestellten Art sind in unterschiedlichsten Varianten bekannt. Sie bieten die Möglichkeit, einen kleineren Bereich individuell auszuleuchten, um in diesem Bereich optimale Arbeitsbedingungen zu schaffen.The lighting of this work area 103 via a lamp 5, which is designed in the present case as a floor lamp. In the same way, however, a table lamp positioned directly on the table top or a so-called suspended workstation lamp could also be used. Shine the in Fig. 1 shown type are known in a variety of variants. They offer the opportunity to illuminate a smaller area individually in order to create optimal working conditions in this area.

Dementsprechend besteht eine erste Funktion der in Fig. 1 dargestellten Leuchte 5 auch darin, den Arbeitsbereich 103 auszuleuchten. Es wird also über eine in der Leuchte 5 angeordnete Lichtquelle - ggf. mittels entsprechender Lichtabgabeelemente - Licht in gewünschter Weise auf den Arbeitsbereich 103 gerichtet.Accordingly, there is a first function of in Fig. 1 Light 5 shown therein also illuminate the work area 103. It is thus directed via a light source 5 arranged in the light source - possibly by means of appropriate light emitting elements - light in the desired manner to the work area 103.

Eine weitere Funktion der erfindungsgemäßen Beleuchtungsanordnung 1 besteht nunmehr darin, innerhalb dieses Arbeitsbereichs 103 auch im Hinblick auf die akustischen Verhältnisse für optimale Arbeitsbedingungen zu sorgen. Insbesondere in Großraumbüros wirkt sich hierbei der vorliegende Geräuschpegel störend auf die Arbeitstätigkeit aus. Besonders problematisch ist dabei der Sprachlärm von benachbarten Arbeitsplätzen, da dieser die Konzentration besonders beeinträchtigen kann.A further function of the illumination arrangement 1 according to the invention is now to ensure optimum working conditions within this working area 103, also with regard to the acoustic conditions. Particularly in open-plan offices, the present noise level has a disruptive effect on the work activity. Particularly problematic is the voice noise from neighboring workplaces, as this can affect the concentration particularly.

Um auch dieses Problem zu lösen bzw. zu reduzieren, ist dementsprechend vorgesehen, dass die Beleuchtungsanordnung 1 eine aktive Schallreduzierung an dem Arbeitsplatz 100 bewirkt. Diese aktive Schallreduzierung beruht auf dem bekannten Konzept der Auslöschung von Wellensignalen aufgrund von Überlagerungseffekten. Insbesondere wird durch die aktive Übermittlung von gegenphasigen Signalen erreicht, dass sich das ursprüngliche Schalsignal und das Gegensignal derart überlagern, dass letztendlich eine Gesamtreduktion des Schalls bzw. Geräuschpegels erzielt wird. Dementsprechend ist also vorgesehen, dass durch die Leuchte 5 nicht nur Licht sondern auch ein Schallsignal abgegeben wird, mit dessen Hilfe die Lärmbelästigung reduziert wird.In order to solve or reduce this problem, it is accordingly provided that the lighting arrangement 1 causes an active noise reduction at the workstation 100. This active noise reduction is based on the well-known concept of cancellation of wave signals due to superposition effects. In particular, the active transmission of antiphase signals ensures that the original shutter signal and the counter signal are superimposed in such a way that ultimately an overall reduction of the sound or noise level is achieved. Accordingly, it is therefore provided that not only light but also a sound signal is emitted by the lamp 5, with the help of which the noise pollution is reduced.

Wie hierzu die Darstellung in Fig. 2 zeigt, weist die Leuchte 5 neben einem - im dargestellten Ausführungsbeispiel - großflächigen Lichtabstrahlelement 6 zur Lichtabgabe zusätzliche Lautsprecher 7 auf, über welche das Schall-Gegensignal abgegeben werden soll. Wie dargestellt, sind die Lautsprecher 7 vorzugsweise benachbart zu dem Lichtabstrahlelement 6 angeordnet, wobei vorgesehen ist, dass sowohl das Licht als auch das Schall-Gegensignal in gleicher Richtung abgegeben, also auf den Arbeitsbereich 103 gerichtet werden.As the illustration in Fig. 2 shows, the lamp 5 in addition to a - in the illustrated embodiment - large-area Lichtabstrahlelement 6 for light output additional speakers 7, via which the sound counter signal is to be delivered. As shown, the speakers 7 are preferably arranged adjacent to the light emitting element 6, wherein it is provided that both the light and the counter sound signal are emitted in the same direction, that is to be directed onto the working area 103.

Wie zuvor erläutert wurde, beruht das Konzept der aktiven Schallreduzierung darauf, dass gezielt zu dem Umgebungslärm ein phasenverschobenes Gegensignal emmitiert wird. Hierzu ist also zunächst erforderlich, dass der im Arbeitsbereich 103 vorliegende, von der Umgebung stammende Lärm erfasst wird. Im dargestellten Ausführungsbeispiel ist hierzu vorgesehen, dass an der Leuchte 5 ein entsprechendes Mikrofon 8 angeordnet ist, welches gezielt wiederum auf den Arbeitsbereich 103 gerichtet ist. Die von dem Mikroton 8 erfassten Signale werden an eine in die Leuchte 5 integrierte Steuereinheit 9 übermittelt, welche eine entsprechende Ansteuerung der Lautsprecher 7 vornimmt. Das über die Lautsprecher 7 abgegebene Schall-Gegensignal sorgt dann zumindest für eine teilweise Auslöschung des Umgebungslärms. Zumindest wird auf diesem Wege erreicht, dass der besonders störende Sprachlärm derart modifiziert / gedämpft wird, dass die Verständlichkeit herab gesetzt wird. Bereits dies führt dazu, dass die Konzentration einer sich an dem Arbeitsplatz 100 aufhaltenden Person deutlich weniger beeinträchtigt wird.As explained above, the concept of active noise reduction is based on the fact that a phase-shifted counter signal is intentionally emitted to the ambient noise. For this purpose, it is therefore first necessary for the noise originating in the working area 103 to be detected. In the illustrated embodiment, it is provided for this purpose that a corresponding microphone 8 is arranged on the lamp 5, which in turn selectively to the work area 103rd is directed. The signals detected by the microton 8 are transmitted to a control unit 9 integrated in the light 5, which performs a corresponding control of the loudspeakers 7. The sound counter signal emitted via the loudspeakers 7 then ensures at least partial cancellation of the ambient noise. At least it is achieved in this way that the particularly annoying speech noise is modified / attenuated so that the intelligibility is lowered. Already this means that the concentration of a person staying in the workplace 100 is significantly less affected.

Von hoher Relevanz für die Funktionsfähigkeit des Konzepts der aktiven Schalldämmung ist, wie bereits angemerkt, dass die unmittelbar an dem Arbeitsbereich 103 vorliegenden akustischen Verhältnisse erfasst werden. Es wäre dementsprechend alternativ zu der dargestellten Ausführungsform auch denkbar, dass unmittelbar an diesem Bereich 103 ein separates Mikrofon angeordnet ist, welches dann mit der Steuereinheit 9 der Leuchte 5 in Verbindung steht. Denkbar wären hierbei insbesondere drahtlose Kommunikationsverbindungen, wie bspw. eine Funkverbindung oder eine Verbindung gemäß dem Bluetooth-Standard.Of high relevance for the functioning of the concept of active sound insulation is, as already noted, that the acoustic conditions present directly at the working area 103 are detected. Accordingly, as an alternative to the illustrated embodiment, it would also be conceivable for a separate microphone to be arranged directly on this region 103, which microphone is then connected to the control unit 9 of the luminaire 5. In particular, wireless communication connections, such as, for example, a radio connection or a connection according to the Bluetooth standard, would be conceivable.

Vorzugsweise kann vorgesehen sein, dass die aktive Schallreduzierung getrennt von der Lichtabgabe durch die Leuchte 5 aktiviert werden kann. Für einen Benutzer besteht dementsprechend die Möglichkeit, wahlweise festzulegen, ob eine Schallreduktion vorgenommen werden soll oder nicht. Alternativ hierzu wäre es allerdings auch denkbar, dass grundsätzlich dann, wenn die Lichtquelle der Leuchte 5 aktiviert wird, auch ein Schall-Gegensignal über die Lautsprecher 7 abgegeben wird.Preferably, it can be provided that the active noise reduction can be activated separately from the light output by the light 5. Accordingly, it is possible for a user to optionally determine whether a sound reduction should be made or not. Alternatively, however, it would also be conceivable that, in principle, when the light source of the luminaire 5 is activated, a sound counter signal is emitted via the loudspeaker 7.

Claims (7)

Beleuchtungsanordnung (1), insbesondere in Form einer Stehleuchte (5), einer Tischleuchte oder einer abgependelten Arbeitsplatzleuchte zum Beleuchten eines Arbeitsplatzes (100), aufweisend: • Mittel zum Beleuchten eines Beleuchtungsbereichs (103), • Mittel zum akustischen Erfassen eines in dem Beleuchtungsbereich (103) vorliegenden Schallsignals, • Mittel zur Abgabe eines akustischen Gegen-Signals in den Beleuchtungsbereich (103), sowie • eine Steuereinheit (9) zur Ansteuerung der Mittel zur Abgabe des akustischen Gegen-Signals derart, das durch das akustische Gegen-Signal innerhalb des Beleuchtungsbereichs (103) der Schall reduziert wird. Lighting arrangement (1), in particular in the form of a floor lamp (5), a table lamp or a suspended workstation lamp for illuminating a workstation (100), comprising: Means for illuminating an illumination area (103), Means for acoustically detecting a sound signal present in the illumination area (103), • means for delivering an acoustic counter-signal in the illumination area (103), as well A control unit (9) for controlling the means for emitting the counter-acoustic signal in such a way that is reduced by the acoustic counter signal within the illumination area (103) of the sound. Beleuchtungsanordnung nach Anspruch 1,
dadurch gekennzeichnet,
dass die Mittel zum Beleuchten, die Mittel zur Abgabe des akustischen Gegen-Signals sowie die Steuereinheit (9) in eine Leuchte (5) integriert sind.Lighting arrangement according to claim 1,
characterized,
that the means for illuminating the means for delivering the acoustic counterpart signal and the control unit (9) are integrated into a lamp (5). Beleuchtungsanordnung nach Anspruch 2,
dadurch gekennzeichnet,
dass die Mittel zum akustischen Erfassen durch ein von der Leuchte (5) getrenntes Mikrophon gebildet sind.Lighting arrangement according to claim 2,
characterized,
that the means for acoustic detection by a of the lamp (5) are formed separate microphone. Beleuchtungsanordnung nach Anspruch 3,
dadurch gekennzeichnet,
dass das Mikrophon mit der Steuereinheit (9) über eine drahtlose Kommunikationsverbindung verbunden ist.Lighting arrangement according to claim 3,
characterized,
in that the microphone is connected to the control unit (9) via a wireless communication link. Beleuchtungsanordnung nach Anspruch 4,
dadurch gekennzeichnet,
dass es sich bei der Kommunikationsverbindung um eine Funkverbindung handelt.Lighting arrangement according to claim 4,
characterized,
that the communication connection is a radio connection. Beleuchtungsanordnung nach Anspruch 4,
dadurch gekennzeichnet,
dass es sich bei der Kommunikationsverbindung um eine Verbindung entsprechend dem Bluetooth-Standard handelt.Lighting arrangement according to claim 4,
characterized,
that the communication connection is a connection according to the Bluetooth standard. Beleuchtungsanordnung nach Anspruch 2,
dadurch gekennzeichnet,
dass die Mittel zum akustischen Erfassen ebenfalls in die Leuchte (2) integriert sind.Lighting arrangement according to claim 2,
characterized,
that the means for acoustic detection are also integrated in the lamp (2).
EP08153721A 2007-05-21 2008-03-31 Lighting assembly, in particular for lighting a workplace with active noise control system Withdrawn EP1995512A3 (en)

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Application Number Priority Date Filing Date Title
DE202007007229U DE202007007229U1 (en) 2007-05-21 2007-05-21 Illumination arrangement, in particular for illuminating a workstation

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EP1995512A2 true EP1995512A2 (en) 2008-11-26
EP1995512A3 EP1995512A3 (en) 2009-07-08

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT510641B1 (en) 2010-10-25 2012-12-15 Hierzer Andreas SOUND ABSORBENT LIGHT
FR3007881B1 (en) * 2013-06-28 2016-03-25 Devinant R&D ACOUSTIC MASKING SYSTEM

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2494016A1 (en) * 1980-11-07 1982-05-14 Miller Herman Inc Combination acoustic conditioner and light fixture - has reflector positioned to disperse light and sound waves due to concavity and internal undulations to mask external sounds
WO1994025835A1 (en) * 1993-04-29 1994-11-10 Kari Hannu Kallio Method for suppression of interferences and detector construction for measuring signals from the surface of solid substance
US20030083024A1 (en) * 2001-10-30 2003-05-01 Lawrence Richenstein Multiple channel wireless communication system
GB2388998A (en) * 2002-05-23 2003-11-26 David Charles Moss Actively reducing noise produced by dental equipment
WO2004009007A1 (en) * 2002-07-19 2004-01-29 The Penn State Research Foundation A linear independent method for noninvasive online secondary path modeling
US20060039569A1 (en) * 2004-08-19 2006-02-23 Antaki Patrick R Noise canceling toilet
WO2007132492A1 (en) * 2006-05-17 2007-11-22 Francesco Pellisari Acoustic correction device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2494016A1 (en) * 1980-11-07 1982-05-14 Miller Herman Inc Combination acoustic conditioner and light fixture - has reflector positioned to disperse light and sound waves due to concavity and internal undulations to mask external sounds
WO1994025835A1 (en) * 1993-04-29 1994-11-10 Kari Hannu Kallio Method for suppression of interferences and detector construction for measuring signals from the surface of solid substance
US20030083024A1 (en) * 2001-10-30 2003-05-01 Lawrence Richenstein Multiple channel wireless communication system
GB2388998A (en) * 2002-05-23 2003-11-26 David Charles Moss Actively reducing noise produced by dental equipment
WO2004009007A1 (en) * 2002-07-19 2004-01-29 The Penn State Research Foundation A linear independent method for noninvasive online secondary path modeling
US20060039569A1 (en) * 2004-08-19 2006-02-23 Antaki Patrick R Noise canceling toilet
WO2007132492A1 (en) * 2006-05-17 2007-11-22 Francesco Pellisari Acoustic correction device

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DE202007007229U1 (en) 2008-10-02

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