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EP1122974B1 - Dispositif d'éclairage avec haut -parleur plat integré - Google Patents

Dispositif d'éclairage avec haut -parleur plat integré Download PDF

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Publication number
EP1122974B1
EP1122974B1 EP00102075A EP00102075A EP1122974B1 EP 1122974 B1 EP1122974 B1 EP 1122974B1 EP 00102075 A EP00102075 A EP 00102075A EP 00102075 A EP00102075 A EP 00102075A EP 1122974 B1 EP1122974 B1 EP 1122974B1
Authority
EP
European Patent Office
Prior art keywords
lighting arrangement
sound
lamp
emitting element
transformer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP00102075A
Other languages
German (de)
English (en)
Other versions
EP1122974A1 (fr
Inventor
Robert Boesnecker
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.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Siemens AG, Siemens Corp filed Critical Siemens AG
Priority to PT00102075T priority Critical patent/PT1122974E/pt
Priority to AT00102075T priority patent/ATE352968T1/de
Priority to ES00102075T priority patent/ES2281316T3/es
Priority to DK00102075T priority patent/DK1122974T3/da
Priority to DE50014004T priority patent/DE50014004D1/de
Priority to EP00102075A priority patent/EP1122974B1/fr
Publication of EP1122974A1 publication Critical patent/EP1122974A1/fr
Application granted granted Critical
Publication of EP1122974B1 publication Critical patent/EP1122974B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H04R1/028—Casings; Cabinets ; Supports therefor; Mountings therein associated with devices performing functions other than acoustics, e.g. electric candles
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/03—Lighting devices intended for fixed installation of surface-mounted type
    • F21S8/033—Lighting devices intended for fixed installation of surface-mounted type the surface being a wall or like vertical structure, e.g. building facade
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/04—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures
    • F21S8/06—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures by suspension
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/04—Plane diaphragms
    • H04R7/045—Plane diaphragms using the distributed mode principle, i.e. whereby the acoustic radiation is emanated from uniformly distributed free bending wave vibration induced in a stiff panel and not from pistonic motion

Definitions

  • the invention relates to a lighting arrangement with a speaker.
  • a voice loudspeaker operating according to the electrodynamic principle is used in a flat-panel loudspeaker, which is mechanically coupled to a surface of an initially undefined size and thickness and of a selected material. If the voice coil is electrically excited by a sound generator, then their vibrations are transmitted to the surface acting as a membrane, whereby this itself forms a sound-emitting element.
  • this speaker type is not a spotlight, as it is commonly used conventionally, but a large-area radiator. In the perception of a listener, this large-area sound source is much more natural than a point-source sound source. It is therefore immediately apparent that a stereophonic effect can be achieved much more simply with a flat-panel loudspeaker than with the conventionally used more or less punctiform radiating loudspeaker types.
  • the sound emitting element of the flat loudspeaker can form a component of a housing of a turntable, radio or television set or also as part of a wall or ceiling of a room could be designed.
  • Further applications for a flat-panel loudspeaker have recently become known, for example, from EP-B-0 847 663 and EP-B-0 847 670.
  • a surface loudspeaker for sonicating a passenger compartment in a vehicle.
  • a display screen consisting of a panel having a light-reflecting or light-emitting surface in which the panel is used as the sound-emitting element of a flat-panel loudspeaker is described.
  • the CD player has a pair of opposing panel-shaped speakers.
  • the CD player includes a main body with a turntable and a lid to cover the turntable.
  • the loudspeakers are mounted on the lid, which have a stiff, lightweight sandwich-type panel with a plastic foam core and two facing layers surrounding the plastic core.
  • the panel is set over a soft storage in a surrounding frame.
  • a transducer is mounted, which drives driven by a signal amplifier the panel bending waves. By stimulating the panel to resonate, the panel emits an audible sound.
  • the present invention has for its object to provide for a flat panel speaker a further embodiment in which its operating principle as well as its design options are used with particular advantage.
  • the design and material selection of the sound emitting element of the flat-panel loudspeaker certainly have certain boundary conditions, they can also comply with a variety of design forms and materials that the luminaire designer and designer enough free space leave open for individual embodiments.
  • it is advantageous that the sound-emitting element is not initially determined in its shape in the flat-panel loudspeaker. Probably it should have a relatively high stiffness at low mass, since it is relatively large area, it follows that it is relatively thin compared to its surface.
  • the sound-emitting element of the flat-panel loudspeaker can easily be used in the dual function as an optically effective component of the lamp.
  • the sound-emitting element can also be readily equipped with a directionally or optionally diffusely reflecting surface without significantly influencing the acoustic properties.
  • the sound-emitting element of the flat-panel loudspeaker is also readily to be designed as an optically effective component of a lighting arrangement.
  • a mains voltage supply in addition, more often control lines must be available when the lighting arrangement is to be operated regulated according to predetermined parameters.
  • the transformer of the flat-panel loudspeaker is preceded by an electronic signal processing unit for compensating non-linearities in the acoustic transmission characteristic of the sound-emitting element.
  • an electronic signal processing unit for compensating non-linearities in the acoustic transmission characteristic of the sound-emitting element.
  • a wall lamp 1 is shown schematically in a three-dimensional view.
  • the wall lamp 1 has a substantially frame-shaped lamp housing 2, at the bottom of a light source 3, which is exemplified here as a compact saving lamp is set.
  • a preferably opaque diaphragm is elastically clamped, which forms the sound-emitting element 4 of a flat-panel loudspeaker.
  • FIG. 2 is further exemplified that in this space between the rear wall of the lamp housing 2 and the preceding sound emitting element 4, the transformer 6 adjacent, optionally a transformer 6 upstream this power amplifier 7 may be provided.
  • this final stage 7 her supplied audio signals are in particular amplified and then delivered to the transformer 6.
  • Conventional transducers for flat-panel loudspeakers have a permanent magnet system and a voice coil to be excited via transverse electrical oscillations, the oscillations of which are transmitted to the mechanically coupled sound-emitting element 4 in the present case. As a result, it is excited to vibrate, which propagate in it as transverse bending waves.
  • the so mechanically excited aperture of the wall lamp 1 gives its vibrational energy in the form of sound waves areal to the environment.
  • This nonlinear transfer function can be detected by measurement for each specific combination of a lighting arrangement with a flat-panel loudspeaker.
  • the particular caused by the sound-emitting element 4 transmission error is known and can be used to correct the function of the area speaker.
  • FIG. 3 schematically shows in a block diagram how this correction of the function of the area loudspeaker is achieved.
  • a generator for the audio signals by way of example, a tape recorder or cassette player 8 is shown, to which a signal processing unit 9 is connected, which in particular represents an electrical filter whose transfer function is formed inversely to the frequency response of the transmission characteristic of the area loudspeaker. Since the transmission characteristic of the sound-emitting element 4 may well have considerable nonlinearities even in this application, it will depend on the requirements of the transmission quality, how well the frequency response of the signal processing unit 9 to the actual Frequency response of the sound emitting element 4 adapts.
  • the signal processing unit 9 has as an input circuit a sample / hold element 10, which is often referred to as a "sample and hold" circuit.
  • a sample / hold element 10 which is often referred to as a "sample and hold" circuit.
  • the audio signal supplied from the tape recorder 8 as an analog signal is sampled according to a predetermined sampling theorem.
  • the respective sampled instantaneous value is buffered and offered to an analog-to-digital converter 11. This converts the serially offered instantaneous values of the audio signal into binary digital signals.
  • the digital signals are fed to a digital signal processor 12, in which purely computationally required for correcting the frequency response signal shaping is performed.
  • a digital-to-analog converter 13 is connected, with which the binary output signal of the signal processor 12 is converted back into an analog signal.
  • This analogue signal is fed via the already mentioned in Figure 2, in particular designed as an output amplifier output stage 7 to the transformer 6 and optionally also more than a transformer 6, in the latter case then in parallel.
  • the embodiment of the signal processing unit 8 shown in FIG. 3 advantageously makes use of advances in the development of digital signal processing.
  • High-performance digital signal processors have long been used extensively for "real-time” applications.
  • the handling of digital signal processors, their possible uses and designs for achieving individual functions can be assumed to be already known here.
  • the circuit configuration of the digital signal processor 12 is not specified in detail.
  • a signal processor in addition to a microcontroller, the actual control unit, a program, a data and an input / output memory, these units are interconnected via a bus system with parallel address, control and data lines.
  • the ability to store in the program memory a specific, tailored to the individual application program upgrades the signal processor to a universal electronic circuit.
  • the filter or filters in the form of FIR (Finite Impulse Response) filters with which complex transfer functions can also be realized in a known manner in the case of "real-time" requests.
  • the signal processing unit 9 may optionally also comprise a plurality of digital signal processors, which then operate in parallel operation, if very high demands are placed on the transmission quality of the area loudspeaker.
  • the connection between the output of the signal processing unit 9 and the output stage 7 need not necessarily be formed as a galvanic line.
  • a radio link for example an infrared link, as the connection between the signal processing unit 9 and the output stage 7.
  • a floor lamp is shown schematically, in which in a conventional manner to a wire frame 15 here a cross-sectionally oval trained lampshade is attached, the sound-emitting in this embodiment Element 4a forms.
  • the at least one transformer 6 is mechanically fixed to the wire frame 15 and on the other hand is under elastic bias on the sound emitting element 4a.
  • the power supply for the light source 3, for example, a light bulb is used here, with a cable line 17 via a lamp base 16 is supplied.
  • this cable line 17 and the line connection could be integrated, via which the transformer 6, the audio signals are supplied.
  • the output stage 7 shown in FIG. 2 in the lamp base 16 in this embodiment.
  • the power amplifier 7 upstream of the power amplifier 7 also comprises an optical receiver in addition to the power amplifier.
  • a designed as a pendant lamp ceiling light is shown as a further embodiment, in which a halogen lamp is used as the light source 3.
  • a halogen lamp is used as the light source 3.
  • this ceiling light has an annular disc which is arranged in the same plane as the light source 3. If this flat pane consists of a transparent material, then a part of the light emitted by the light source 3 is radiated into it and emitted again by it under the corresponding optical effect as stray light.
  • this annular disc forms a sound emitting element 4b of the ceiling light, therefore, the attached via an arm 18 to the pendulum of the ceiling light transformer 6 is placed from above on this the sound-emitting element 4b forming annular disc.
  • the output stage 7 (not shown in FIG. 5) in a pot-shaped cover box 19 provided near the ceiling at the upper end of the pendulum.
  • FIG. 6 is shown as a further embodiment of a combined with a flat panel lamp suspended on ropes suspended ceiling lamp in secondary technology.
  • this type of luminaire is already widely known, so that the chosen schematic representation is quite sufficient.
  • the light source 3 a fluorescent lamp is used in this case, around which a primary reflector 20 is arranged such that the light source 3 is shaded in the normal operation of the lamp in the viewing direction.
  • the primary reflector 20 is, as schematically indicated, mechanically fixed to an approximately box-shaped luminaire housing 2 '.
  • an approximately bird-wing-like trained secondary reflector 21 is provided, which is partly illuminated directly from the light source 3, but also receives reflected light from the primary reflector 20 and radiates these light components downwards.
  • the lamp housing 2 ' is attached via cables to a pair of Abdeckdosen 19, which are secured in the assembled state of the lamp via cable spirals 26 on a ceiling, not shown in Figure 6.
  • the mains power supply can be supplied via one of the two cable spirals 22 and the audio signals for the area loudspeaker can be supplied via the other.
  • a part of the lamp housing 2 ' is used as the sound emitting element 4c of the area speaker.
  • an upper cover surface of the luminaire housing 2 'facing away from the secondary reflector 21 offers, for example, this sound-emitting element 4c.
  • the secondary reflector 21 could be used as a sound-emitting element, if it is taken into account, this reflector elastically decoupled on the lamp housing 2 set '.
  • an operating device for example an electronic ballast 23, and at least the transformer 6 for the area loudspeaker are arranged within the luminaire housing 2 '.
  • FIG. 7 illustrates, as a further embodiment, an arrangement for room lighting, which is also particularly suitable for the integration of a flat-panel loudspeaker. It is an arrangement for zonal lighting also in secondary technology.
  • the light source 3 used for the illumination is arranged in a projector light 24. Equipped with a corresponding optics, the projector light 24 radiates the light generated by the light source 3 bundled in the upper solid angle directed against a schematically indicated ceiling.
  • a gimbal mounted on the ceiling ceiling reflector 25 is arranged in the beam of the projector light 24 a gimbal mounted on the ceiling ceiling reflector 25 is arranged.
  • the ceiling reflector 25 has a frame 26, via which a reflector element, which forms the sound-emitting element 4d in this case, is fixed to a cardan suspension.
  • This ceiling mounting the ceiling reflector 25 allows to adjust this relative to the ceiling individually. As indicated in FIG. 7 by arrows shown in broken lines, the light emitted by the projector light 24 can thus be directed by means of the ceiling reflector 25 in certain areas of the room in order, for example, to illuminate a workstation comfortably.
  • the in this illumination arrangement according to Figure 7 already existing launcher 24 can be readily used to accommodate in her also the control gear for the area speaker. As indicated schematically in FIG. 7, this applies above all to the digital signal processing unit 9. It would also be conceivable, however, to even accommodate a cassette or tape recorder 8 in the projector light 24.
  • the reflector element becomes of the ceiling reflector 25 is used as the sound emitting element 4d of the area speaker.
  • the required transformer 6 is mechanically fixed to the frame 26 of the ceiling reflector 25.
  • the connection between this transformer 6 and the output of the signal processing unit 9 arranged in the projector light 24 is produced via an infrared radio link.
  • an infrared transmitter 27 and an attached to the ceiling reflector 25 infrared receiver 28 is provided in the projector light 24. This is connected via the likewise arranged on the ceiling reflector 25 power amplifier 7 to the transformer 6.

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)

Claims (10)

  1. Système d' éclairage comportant un haut-parleur, caractérisé en ce que le haut-parleur est un haut-parleur plat comportant un élément (4, 4a à 4d) émetteur de son qui est maintenu dans un support et auquel est associé un transmetteur (6) lequel convertit des signaux sonores qui lui sont acheminés comme signaux électriques d' entrée en vibrations mécaniques à l' aide desquelles l' élément (4, 4a à 4d) émetteur de son est excité pour obtenir des vibrations de flexion transversales et donc pour émettre un son, l'élément (4, 4a à 4d) émetteur de son étant en même temps un composant du système d' éclairage de sorte que le haut-parleur plat ainsi conçu est intégré dans le système d' éclairage .
  2. Système d' éclairage selon la revendication 1, caractérisé en ce que le système d' éclairage est conçu comme luminaire dont le boîtier (2) renferme le transmetteur (6) et que l' élément (4) émetteur de son forme un composant - du luminaire (1) - qui dirige la lumière et par lequel le flux lumineux produit par une source lumineuse (3)est émis dans l' atmosphère ambiante .
  3. Système d' éclairage selon l' une des revendications 1 ou 2 , caractérisé en ce qu' il est monté en amont du transmetteur (6) une unité électronique de traitement des signaux (9) destinée à compenser des non linéarités dans la caractéristique acoustique de transmission de l' élément (4, 4a à 4d) émetteur de son .
  4. Système d' éclairage selon la revendication 3, caractérisé en ce que l'unité électronique de traitement des signaux (9) comporte un processeur de signai (12) numérique dans lequel la fonction de transmission de l' élément (4, 4a à 4d) émetteur de son est conservée et qui corrige préalablement des signaux sonores qui lui sont acheminés dans la réponse de fréquences en fonction des valeurs inverses d' amplitude de cette fonction de transmission.
  5. Système d' éclairage selon l'une des revendications 3 ou 4, caractérisé en ce que le système d'éclairage est conçu comme luminaire (1) dont le boîtier (2) contient, outre le transmetteur (6), au au moins un étage final (7) monté en amont de celui-ci.
  6. Système d' éclairage selon la revendication 5, caractérisé en ce que le système d' éclairage est conçu comme luminaire monté au plafond ou intégré au plafond ou comme plafonnier suspendu de manière à osciller, dont le boîtier (2a) contient non seulement des équipements (23) électroniques pour faire fonctionner le luminaire, mais aussi le haut-parleur plat.
  7. Système d' éclairage selon la revendication 6, caractérisé en ce que le plafonnier est conçu comme luminaire secondaire comportant au moins une lampe fluorescente servant de source lumineuse (3), un réflecteur primaire (20) qui l' entoure en partie et qui fait écran en direction du regard et un réflecteur secondaire (21) placé sur le côté inférieur du bottier (2') du luminaire, une partie du bottier (2') du luminaire étant conçue comme élément (4c) émetteur de son .
  8. Système d' éclairage selon l' une des revendications 3 ou 4, caractérisé en ce que le système d' éclairage est conçu comme lampadaire muni d' un abat-jour qui est en même temps l' élément (4a) émetteur de son et d' un pied (17) dans lequel est placé au moins un étage final monté en amont du transmetteur (6) .
  9. Système d' éclairage selon l' une des revendications 3 ou 4, caractérisé en ce que le système d' éclairage est conçu comme système d' éclairage (24, 25) local d' après la technique secondaire et comporte un projecteur (24) qui émet de la lumière de préférence en faisceau et dans l' angle solide supérieur et une unité réfléchissante (25) placée dans son cône lumineux pour dévier la lumière, l' élément (4d) émetteur de son étant intégré dans cette unité réfléchissante (25) .
  10. Système d' éclairage selon l' une des revendications 5 à 9, caractérisé en ce qu' une section de transmission infrarouge ou radio (27,28) est prévue pour transmettre les signaux entre l' unité électronique de traitement des signaux (9) et l' étage final (7) en amont du transmetteur (6).
EP00102075A 2000-02-02 2000-02-02 Dispositif d'éclairage avec haut -parleur plat integré Expired - Lifetime EP1122974B1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
PT00102075T PT1122974E (pt) 2000-02-02 2000-02-02 Altifalante plano integrado num sistema de iluminação
AT00102075T ATE352968T1 (de) 2000-02-02 2000-02-02 Beleuchtungsanordnung mit einem integrierten flächenlautsprecher
ES00102075T ES2281316T3 (es) 2000-02-02 2000-02-02 Disposicion de iluminacion con un altavoz plano integrado.
DK00102075T DK1122974T3 (da) 2000-02-02 2000-02-02 Belysningsindretning med en integreret höjttaler
DE50014004T DE50014004D1 (de) 2000-02-02 2000-02-02 Beleuchtungsanordnung mit einem integrierten Flächenlautsprecher
EP00102075A EP1122974B1 (fr) 2000-02-02 2000-02-02 Dispositif d'éclairage avec haut -parleur plat integré

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP00102075A EP1122974B1 (fr) 2000-02-02 2000-02-02 Dispositif d'éclairage avec haut -parleur plat integré

Publications (2)

Publication Number Publication Date
EP1122974A1 EP1122974A1 (fr) 2001-08-08
EP1122974B1 true EP1122974B1 (fr) 2007-01-24

Family

ID=8167758

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00102075A Expired - Lifetime EP1122974B1 (fr) 2000-02-02 2000-02-02 Dispositif d'éclairage avec haut -parleur plat integré

Country Status (6)

Country Link
EP (1) EP1122974B1 (fr)
AT (1) ATE352968T1 (fr)
DE (1) DE50014004D1 (fr)
DK (1) DK1122974T3 (fr)
ES (1) ES2281316T3 (fr)
PT (1) PT1122974E (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008012856A1 (de) 2008-03-06 2009-09-17 Siemens Aktiengesellschaft Akustische Anregereinheit
DE102008013612A1 (de) 2008-03-11 2009-10-08 Siemens Aktiengesellschaft Akustische Vorrichtung
DE102008063245A1 (de) * 2008-12-16 2010-06-17 Slg Kunststoff Gmbh Lautsprechereinheit

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20021806A1 (it) * 2002-08-08 2004-02-09 Artemide Group S P A Apparecchio di illuminazione multifunzione
DE102004026160B4 (de) * 2004-05-28 2015-10-22 Siteco Beleuchtungstechnik Gmbh Beleuchtungssystem zur Erzeugung einer variablen Lichtverteilung
DE102006003830B4 (de) * 2006-01-26 2013-07-25 Siemens Aktiengesellschaft Umgebungsbeleuchtungseinrichtung
DE102006056394B4 (de) * 2006-11-29 2010-05-20 Siemens Ag Beleuchtungseinrichtung
DE102006060723B4 (de) * 2006-12-21 2010-05-27 Xounts Ag Anordnung mit durch Schwingungen betriebenen Klangkörpern
DE102009043661B4 (de) 2009-09-29 2013-12-05 Robert Bösnecker Vorrichtung zur Visualisierung von Biegewellen-Schwingungen bei Schallgebern auf Biegewellenbasis

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Publication number Priority date Publication date Assignee Title
JPH04188998A (ja) * 1990-11-21 1992-07-07 Nippon Columbia Co Ltd 照明付きスピーカシステム
DE4440583C2 (de) * 1994-11-14 2002-02-28 Albert Baur Lautsprecher-Leuchten-Kombination
EA002018B1 (ru) * 1995-09-02 2001-12-24 Нью Трэнсдьюсерз Лимитед Портативный проигрыватель компакт-дисков
PL182618B1 (pl) * 1995-09-02 2002-02-28 New Transducers Ltd Płyta sufitu podwieszanego propagująca energię akustyczną
GB9811098D0 (en) * 1998-05-23 1998-07-22 New Transducers Ltd Panel-form loudspeaker

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008012856A1 (de) 2008-03-06 2009-09-17 Siemens Aktiengesellschaft Akustische Anregereinheit
DE102008013612A1 (de) 2008-03-11 2009-10-08 Siemens Aktiengesellschaft Akustische Vorrichtung
DE102008063245A1 (de) * 2008-12-16 2010-06-17 Slg Kunststoff Gmbh Lautsprechereinheit

Also Published As

Publication number Publication date
DE50014004D1 (de) 2007-03-15
PT1122974E (pt) 2007-04-30
ATE352968T1 (de) 2007-02-15
DK1122974T3 (da) 2007-05-21
ES2281316T3 (es) 2007-10-01
EP1122974A1 (fr) 2001-08-08

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