EP0346324B1 - Device for producing light effects - Google Patents

Device for producing light effects Download PDF

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Publication number
EP0346324B1
EP0346324B1 EP87905563A EP87905563A EP0346324B1 EP 0346324 B1 EP0346324 B1 EP 0346324B1 EP 87905563 A EP87905563 A EP 87905563A EP 87905563 A EP87905563 A EP 87905563A EP 0346324 B1 EP0346324 B1 EP 0346324B1
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EP
European Patent Office
Prior art keywords
diaphragm
rotating disc
light
loudspeaker
rotating
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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
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EP87905563A
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German (de)
French (fr)
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EP0346324A1 (en
Inventor
Erich Stastny
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STASTNY, ERICH
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Individual
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    • 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
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63J—DEVICES FOR THEATRES, CIRCUSES, OR THE LIKE; CONJURING APPLIANCES OR THE LIKE
    • A63J17/00—Apparatus for performing colour-music
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S10/00—Lighting devices or systems producing a varying lighting effect
    • F21S10/007—Lighting devices or systems producing a varying lighting effect using rotating transparent or colored disks, e.g. gobo wheels
    • 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

Definitions

  • the invention relates to a device for producing light effects, with two coaxially arranged disks, one of which is driven to rotate by means of sound vibration actuated means, and at least one of which is illuminated by a light source.
  • a light source is arranged behind a plurality of disks which can be rotated relative to one another, the disks being either transparent or provided with openings. With such a device, a flowing light effect can be generated.
  • the rotary movement of the two disks is dependent on sound vibrations, but to achieve these rotary movements not only a separate vibration system is required, regardless of the loudspeakers that reproduce the sound vibrations, but also complex construction elements are necessary to convert the vibratory movements into rotating movements.
  • the invention proposes that the two, having openings, disks are arranged at the opening of the diaphragm of a loudspeaker and that the means have at least one driver which is attached to the rotating disc or to the diaphragm and with its free End rests frictionally on the membrane or on the rotating disc, so that a rotation of the disc is caused by the vibrations of the membrane.
  • acoustic vibrations are used to drive the rotating disk, but the drive is derived directly from the vibrations of the diaphragm of a loudspeaker and is carried out by drivers which cause the vibrations of the diaphragm of the loudspeaker by frictional engagement on the disc. It has been shown that, with a suitable design of such drivers, the desired rotary movement of the rotating disk takes place by frictional driving, in particular in the frequency range of the loudspeaker between 60 and 120 Hz.
  • the combination between the device for generating light effects and a loudspeaker has the advantage that it can be accommodated in a common housing, an enlargement of the housing accommodating the loudspeaker not being necessary.
  • the device according to the invention can be used wherever loudspeaker transmissions are to take place and lighting effects are to be achieved, for example when singers or musicians appear, where a microphone transmission takes place, in discotheques or at similar events.
  • the rotating disk covers the opening of the diaphragm of the loudspeaker, which results in the greatest possible effects.
  • the driver can consist of a wire bent in the form of a helical section.
  • the free end of the wire is tangential to or surface of the rotating disc, so that the conversion of the swinging movement of the loudspeaker diaphragm into a rotary movement of the rotating disc is ensured.
  • the rotating disk on the side facing the membrane expediently has a ring on which the driver bears. This ring reinforces the disk in the area where the driver acts on the disk, so that deformations of the disk are avoided there, and ensures a completely flat contact surface for the driver, which is necessary for the device according to the invention to function properly.
  • the driver can be glued to the membrane, preferably by means of an epoxy adhesive.
  • the driver which consists, for example, of a metal wire
  • the membrane is ensured.
  • the free end of the driver, which rests against the rotating disk is provided with a cap made of sound-absorbing material, for example made of rubber or rubber-like material. This avoids disturbing noises that may otherwise occur when the driver moves the rotating disc.
  • the driver can consist of a fiber bundle, preferably of carbon fibers, which is arranged obliquely to the axis of the membrane.
  • This fiber bundle is preferably fastened to the rotating disk and rests with its free end on an outer ring of the membrane.
  • Such a fiber bundle reliably transmits the vibrations of the membrane to the rotating disk, without disturbing noises or mechanical stress on the membrane or the disk.
  • the light source can be arranged within the diaphragm of the loudspeaker, the diaphragm preferably being provided with a light-reflecting coating.
  • Such an embodiment has the advantage that no additional space is required for accommodating the light source, since in the large loudspeakers used in practice there is sufficient space within the membrane for accommodating the light source.
  • the membrane can also serve as a reflector.
  • the light emitted by the light source emerges through the translucent openings in the disks, the desired lighting effects being brought about by the changing coverage of the two disks during the rotational movement of the rotating disk.
  • the light source can also be arranged outside the membrane or the housing receiving the loudspeaker, so that the side of one of the panes facing the viewer is illuminated by a light source, for example a headlight.
  • a light source for example a headlight.
  • the other, rotating disk must be provided with a light-reflecting coating on its side facing the viewer.
  • the rotating movement of the rotating disk causes a different reflection of the light, as a result of which the desired light effects occur. Additional effects can be brought about by the fact that the rotating disk has at its edge a bend provided with openings and / or cutouts, to which light from at least one light source is directed.
  • the device according to FIGS. 1 to 3 has a loudspeaker 1 with a membrane 2.
  • the edge 3 of the loudspeaker 1 and the outer ring 16 of the diaphragm 2 are fastened to a frame 4 which can form part of the housing 25 of the device.
  • the membrane 2 is covered by a rotating disc 5 and by a fixed disc 6. Both disks 5 are provided with openings 18 and 19, respectively, this disk is expediently designed as perforated disks or as a speaker grille.
  • the fixed disc 6 is supported with a flange 7 on the frame 4 and has a bearing pin 8 on which a bearing 8 of the rotating disc 5 is mounted, which rotates about the axis 17 of the loudspeaker 1 or the device.
  • Light sources 10 are arranged within the membrane 2. During the rotating movement of the rotating disk 5, the alternating coverage of the opening 18, 19 in the two disks 5, 6 results in light effects to the outside. The openings in these panes also serve to allow the sound to emerge from the loudspeaker 1.
  • each driver 11 consists of a wire which is bent in the form of a helical section and at 12 on an annular part 13 protruding from the frustoconical part of the membrane 2 by gluing, for example by means of a Epoxy adhesive is attached.
  • the free end of each driver 11 has a cap 14 made of a sound-absorbing material, which abuts a ring 15 which is arranged on the rotating disk 5 and projects in the direction of the membrane 2.
  • the drivers 11 move, which is transmitted via the caps 14 by frictional engagement to the ring 15 and thus to the disk 5, that this disc 5 rotates about the axis 17 without an electric motor or similar drive being required for this.
  • drivers 21 also serve as a rotary drive for the disk 5, but are formed by brush-like carbon fiber bundles. Each of these carbon fiber bundles is fastened to the disk 5 with a holder 22, the axis of the respective carbon fiber bundle being arranged obliquely to the axis 17.
  • the free ends of the drivers 21 formed by the carbon fiber bundles lie on an outer ring 16 of the membrane 2 at.
  • This outer ring 16 can be relatively rigid, but transmits the vibrations of the diaphragm 2 to the drivers 21, of which three or four are expediently arranged at regular intervals around the circumference of the outer ring 16.
  • light-emitting diodes which are arranged outside the membrane 2 and are expediently in different colors. These LEDs are so inclined on the circumference of the housing 25 that they radiate in the direction of the axis 17 or the journal 8.
  • the rotating disk 5 is provided on its circumference with a bend 23 and is formed in this area with openings and or or cutouts 24, as a result of which an alternating light incidence of the light emitted by the light sources 10 is achieved toward the inside of the disk 5.
  • the light sources 10 are covered and thereby protected by the outer pane 6, which is firmly but detachably connected to the housing 25.
  • no light sources 10 are provided within the membrane 2, but the device is illuminated from the outside, for example by means of at least one headlight 20 (FIG. 1), the light of which thus falls on the outside of the pane 6.
  • the surface of the rotating disc 5 facing the disc 6 is then provided with a light-reflecting coating through which the light emitted by the headlights 20 is reflected, so that light effects also result.
  • the membrane 2 can also be provided with a light-reflecting coating for better utilization of the light emitted by the light sources 10.

Abstract

A device for a loudspeaker (1) used at the same time to produce light effects has a membrane (2) and light sources (10). The opening of the membrane (2) is covered by a rotating perforated disk (5) and by a stationary perforated disk (6). The rotation of the rotating disk (5) produces the desired light effects by covering in a changeable manner the holes of both disks (5, 6). The rotation is effected by entrainment elements (11) secured to the membrane (2) and the free extremity of which lies on the rotating disk (4). The vibrations produced when the loudspeaker (1) is in operation cause said elements (11) to slide, their movement being transferred by frictional engagement to the disk (5), rotating the same.

Description

Die Erfindung betrifft eine Vorrichtung zur Erzeugung von Lichteffekten, mit zwei koaxial angeordneten Scheiben, von welchen eine durch von Schallschwingungen betätigte Mittel zu einer Rotationsbewegung angetrieben ist, und von welchen wenigstens eine durch eine Lichtquelle beleuchtet ist.The invention relates to a device for producing light effects, with two coaxially arranged disks, one of which is driven to rotate by means of sound vibration actuated means, and at least one of which is illuminated by a light source.

Es sind Einrichtungen zur Erzeugung von Lichteffekten bekannt, bei welchen hinter mehreren relativ zueinander verdrehbaren Scheiben eine Lichtquelle angeordnet ist, wobei die Scheiben entweder transparent oder mit Öffnungen versehen sind. Mit einer solchen Einrichtung läßt sich ein fließender Lichteffekt erzeugen.Devices for producing light effects are known in which a light source is arranged behind a plurality of disks which can be rotated relative to one another, the disks being either transparent or provided with openings. With such a device, a flowing light effect can be generated.

Bei Veranstaltungen, bei welchen Gesang oder Musik über Lautsprecher übertragen wird, ist es häufig gewünscht, auch Lichteffekte zu erzeugen. Bisher erfolgte dies mittels einzelner, zumeist verscheidenfärbiger Lichtquellen, die gesondert von den Lautsprechern angeordnet sind und deren Stromzufur dauernd geändert wird. Hiezu ist eine komplizierte elektronische Steuerung erforderlich.At events where singing or music is transmitted via loudspeakers, it is often desirable to also create lighting effects. So far, this has been done by means of individual, mostly different colored light sources, which are arranged separately from the speakers and whose power supply is constantly changed. This requires a complicated electronic control.

Aus der US-A-4 232 304 ist eine Vorrichtung zur Erzeugung von Lichteffekten bekannt geworden, die zwei durch eine Lichtquelle beleuchtete, zu einer gegensinnigen Rotationsbewegung angetriebene Scheiben aufweist. Der Antrieb der Scheiben erfolgt über ein Klinkenschaltwerk mittels einer vibrierenden Lagerachse, die mit einer elektrischen Spule verbunden ist, welche im Feld eines Permanentmagneten angeordnet ist. Werden der Spule elektrische Signale beispielsweise vom Ausgang eines Rundfunkgerätes, eines Plattenspielers oder eines Tonbandgerätes zugeführt, so entsteht durch die Schwingbewegung der Spule eine axial Vibrationsbewegung der Lagerachse und damit eine Drehbewegung der beiden Scheiben. Nachteilig ist bei dieser bekannten Anordnung die hinsichtlich des konstruktiven Aufbaues und des erforderlichen Platzbedarfes aufwendige Ausgestaltung. Die Drehbewegung der beiden Scheiben erfolgt zwar in Abhängigkeit von Schallschwingungen, jedoch ist zur Erzielung dieser Drehbewegungen nicht nur ein gesondertes Schwingungsystem, unabhängig von den die Schallschwingungen wiedergebenden Lautsprechern, erforderlich, sondern es sind auch aufwendige Konstruktionselemente zur Umsetzung der Schwingbewegungen in rotierende Bewegungen notwendig.From US-A-4 232 304 a device for producing light effects has become known which has two disks illuminated by a light source and driven to rotate in opposite directions. The disks are driven by a ratchet mechanism by means of a vibrating bearing shaft which is connected to an electrical coil which is arranged in the field of a permanent magnet. If electrical signals are fed to the coil, for example from the output of a radio, a record player or a tape recorder, the oscillating movement of the coil produces an axial vibration movement of the bearing axis and thus a rotary movement of the two disks. A disadvantage of this known arrangement is the complex design with regard to the structural design and the required space. The rotary movement of the two disks is dependent on sound vibrations, but to achieve these rotary movements not only a separate vibration system is required, regardless of the loudspeakers that reproduce the sound vibrations, but also complex construction elements are necessary to convert the vibratory movements into rotating movements.

Es ist Aufgabe der vorliegenden Erfindung, eine Vorrichtung zur Erzeugung von Lichteffekten der eingangs beschriebenen Art derart zu verbessern, daß der Antrieb der rotierenden Scheibe vereinfacht wird und die Vorrichtung mit einem Lautsprecher kombiniert werden kann, ohne daß hiebei der für den Lautsprecher erforderliche Platzbedarf wesentlich vergrößert wird. Zur Lösung dieser Aufgabe schlägt die Erfindung vor, daß die beiden, Öffnungen aufweisenden, Scheiben an der Öffnung der Membrane eines Lautsprechers angeordnet sind und daß die Mittel wenigstens einen Mitnehmer aufweisen, der an der rotierenden Scheibe oder an der Membrane befestigt ist und mit seinem freien Ende an der Membrane oder an der rotierenden Scheibe reibungsschlüssig anliegt, so daß durch die Schwingungen der Membrane eine Rotationsbewegung der Scheibe bewirkt wird.It is an object of the present invention to improve a device for generating light effects of the type described in the introduction in such a way that the drive of the rotating disk is simplified and the device can be combined with a loudspeaker without the space required for the loudspeaker being significantly increased becomes. To achieve this object, the invention proposes that the two, having openings, disks are arranged at the opening of the diaphragm of a loudspeaker and that the means have at least one driver which is attached to the rotating disc or to the diaphragm and with its free End rests frictionally on the membrane or on the rotating disc, so that a rotation of the disc is caused by the vibrations of the membrane.

Bei der erfindungsgemäßen Vorrichtung werden ebenso wie bei der aus der US-A-4 232 304 Schallschwingungen für den Antrieb der rotierenden Scheibe herangezogen, der Antrieb wird jedoch unmittelbar von den Schwingungen der Membrane eines Lautsprechers abgeleitet und erfolgt über Mitnehmer, die die Schwingungen der Membrane des Lautsprechers durch Reibungsschluß auf die Scheibe übertragen. Es hat sich gezeigt, daß sich bei geeigneter Ausbildung solcher Mitnehmer die gewünschte Drehbewegung der rotierenden Scheibe durch reibungsschlüssige Mitnahme erfolgt, insbesondere im Frequenzbereich des Lautsprechers zwischen 60 und 120 Hz.In the device according to the invention, as in that from US Pat. No. 4,232,304, acoustic vibrations are used to drive the rotating disk, but the drive is derived directly from the vibrations of the diaphragm of a loudspeaker and is carried out by drivers which cause the vibrations of the diaphragm of the loudspeaker by frictional engagement on the disc. It has been shown that, with a suitable design of such drivers, the desired rotary movement of the rotating disk takes place by frictional driving, in particular in the frequency range of the loudspeaker between 60 and 120 Hz.

Die Kombination zwischen der Vorrichtung zur Erzeugung von Lichteffekten und einem Lautsprecher bringt den Vorteil mit sich, daß die Unterbringung in einem gemeinsamen Gehäuse möglich ist, wobei eine Vergrößerung des den Lautsprecher aufnehmenden Gehäuses nicht erforderlich ist. Die erfindungsgemäße Vorrichtung ist überall dort anwendbar, wo sowohl Lautsprecher- übertragungen stattfinden als auch Lichteffekte erzielt werden sollen, also beispielsweise bei einem Auftreten von Sängern oder Musikern, wo eine Mikrophonübertragung stattfindet, in Diskotheken oder bei ähnlichen Veranstaltungen.The combination between the device for generating light effects and a loudspeaker has the advantage that it can be accommodated in a common housing, an enlargement of the housing accommodating the loudspeaker not being necessary. The device according to the invention can be used wherever loudspeaker transmissions are to take place and lighting effects are to be achieved, for example when singers or musicians appear, where a microphone transmission takes place, in discotheques or at similar events.

Gemäß einer bevorzugten Ausführungsform der Erfindung deckt die rotierende Scheibe die Öffnung der Membrane des Lautsprechers ab, wodurch sich die größtmöglichsten Effekte ergeben.According to a preferred embodiment of the invention, the rotating disk covers the opening of the diaphragm of the loudspeaker, which results in the greatest possible effects.

Im Rahmen der Erfindung kann der Mitnehmer aus einem in Form eines Schraubenlinienabschnittes gebogenen Draht bestehen. Bei dieser Ausführungsform liegt das freie Ende des Drahtes tangential an oder Oberfläche der rotierenden Scheibe an, so daß die Umsetzung der Schwingbewegung der Lautsprechermembrane in eine Drehbewegung der rotierenden Scheibe sichergestellt ist. Zweckmäßig weist hiezu die rotierende Scheibe an jener Seite, welche der Membrane zugewendet ist, einen Ring auf, an welchem der Mitnehmer anliegt. Dieser Ring bewirkt eine Verstärkung der Scheibe in jenem Bereich, an dem der Mitnehmer auf die Scheibe einwirkt, so daß dort Deformationen der Scheibe vermieden werden, und gewährleistet eine völlig plane Auflagefläche für den Mitnehmer, welche für eine einwandfreie Funktion der erfindungsgemäßen Vorrichtung erforderlich ist. Der Mitnehmer kann an der Membrane, vorzugsweise mittels eines Epoxyklebers, angeklebt sein. Auf diese Weise wird eine sichere Verbindung zwischen dem beispielsweise aus einem Metalldraht bestehenden Mitnehmer und der Membrane gewährleistet. Gemäß einem weiteren Merkmal der Erfindung ist das freie, an der rotierenden Scheibe anliegende Ende des Mitnehmers mit einer Kappe aus schallschluckendem Material, z.B. aus Gummi oder aus gummiähnlichem Material, versehen. Dadurch werden störende Geräusche, die sonst bei der Vorschubbewegung der rotierenden Scheibe durch den Mitnehmer auftreten können, vermieden.In the context of the invention, the driver can consist of a wire bent in the form of a helical section. In this embodiment, the free end of the wire is tangential to or surface of the rotating disc, so that the conversion of the swinging movement of the loudspeaker diaphragm into a rotary movement of the rotating disc is ensured. For this purpose, the rotating disk on the side facing the membrane expediently has a ring on which the driver bears. This ring reinforces the disk in the area where the driver acts on the disk, so that deformations of the disk are avoided there, and ensures a completely flat contact surface for the driver, which is necessary for the device according to the invention to function properly. The driver can be glued to the membrane, preferably by means of an epoxy adhesive. In this way, a secure connection between the driver, which consists, for example, of a metal wire, and the membrane is ensured. According to a further feature of the invention the free end of the driver, which rests against the rotating disk, is provided with a cap made of sound-absorbing material, for example made of rubber or rubber-like material. This avoids disturbing noises that may otherwise occur when the driver moves the rotating disc.

Gemäß einer anderen, besonders günstigen Ausführungsform der Erfindung kann der Mitnehmer aus einem Faserbündel, vorzugsweise aus Kohlefasern, bestehen, das schräg zur Achse der Membrane angeordnet ist. Vorzugsweise ist dieses Faserbündel an der rotierenden Scheibe befestigt und liegt mit seinem freien Ende an einem Außenring der Membrane an. Ein solches Faserbündel überträgt die Schwingungen der Membrane verläßlich auf die rotierenden Scheibe, ohne störende Geräusche oder eine mechanische Beanspruchung der Membrane oder der Scheibe.According to another, particularly favorable embodiment of the invention, the driver can consist of a fiber bundle, preferably of carbon fibers, which is arranged obliquely to the axis of the membrane. This fiber bundle is preferably fastened to the rotating disk and rests with its free end on an outer ring of the membrane. Such a fiber bundle reliably transmits the vibrations of the membrane to the rotating disk, without disturbing noises or mechanical stress on the membrane or the disk.

Die Lichtquelle kann innerhalb der Membrane des Lautsprechers angeordnet sein, wobei vorzugweise die Membrane mit einem lichtreflektierenden Belag versehen ist. Eine solche Ausführung bringt den Vorteil mit sich, daß für die Unterbringung der Lichtquelle kein zusätzlicher Platz erforderlich ist, da bei den in der Praxis verwendeten großen Lautsprechern innerhalb der Membrane hinreichend Platz für die Unterbringung der Lichtquelle zur Verfügung steht. Außerdem kann in einem solchen Fall die Membrane gleichzeitig als Reflektor dienen. Das von der Lichtquelle ausgesandte Licht tritt in diesem Fall durch die lichtdurchlässigen Öffnungen in der Scheiben nach außen, wobei die gewünschten Lichteffekte durch die sich ändernde Überdeckung der beiden Scheiben während der Drehbewegung der rotierenden Scheibe hervorgerufen werden. Es kann aber auch die Lichtquelle außerhalb der Membrane bzw. des den Lautsprecher aufnehmenden Gehäuse angeordnet sein, so daß die dem Betrachter zugewendete Seite einer der Scheiben durch eine Lichtquelle, beispielsweise einen Scheinwerfer, beleuchtet ist. In diesem Fall muß die anderen, rotierende Scheibe an ihrer den Betrachter zugewendeten Seite mit einem lichtreflektierenden Belag versehen sein. Auch in diesem Fall wird durch die Drehbewegung der rotierenden Scheibe eine unterschiedliche Reflexion des Lichtes hervorgerufen, wodurch die gewünschten Lichteffekte auftreten. Zusätzliche Effekte können dadurch hervorgerufen werden, daß die rotierende Scheibe an ihrem Rand eine mit Öffnungen und bzw. oder Ausschnitten versehene Umbiegung hat, auf die Licht aus zumindest einer Lichtquelle gerichtet ist.The light source can be arranged within the diaphragm of the loudspeaker, the diaphragm preferably being provided with a light-reflecting coating. Such an embodiment has the advantage that no additional space is required for accommodating the light source, since in the large loudspeakers used in practice there is sufficient space within the membrane for accommodating the light source. In such a case, the membrane can also serve as a reflector. In this case, the light emitted by the light source emerges through the translucent openings in the disks, the desired lighting effects being brought about by the changing coverage of the two disks during the rotational movement of the rotating disk. However, the light source can also be arranged outside the membrane or the housing receiving the loudspeaker, so that the side of one of the panes facing the viewer is illuminated by a light source, for example a headlight. In this case, the other, rotating disk must be provided with a light-reflecting coating on its side facing the viewer. In this case too, the rotating movement of the rotating disk causes a different reflection of the light, as a result of which the desired light effects occur. Additional effects can be brought about by the fact that the rotating disk has at its edge a bend provided with openings and / or cutouts, to which light from at least one light source is directed.

In der Zeichnung ist die Erfindung an Hand eines Ausführungsbeispieles schematisch veranschaulicht.

  • Fig. 1 zeigt einen Schnitt durch eine erste Ausführungsform der erfindungsgemäßen Vorrichtung nach der Linie I-I in Fig. 2.
  • Fig. 2 stellt eine Draufsicht auf die erfindungsgemäße Vorrichtung dar, wobei jedoch die äußere Scheibe weggelassen und die innere Scheibe teilweise weggebrochen ist.
  • Fig. 3 zeigt einen Schnitt nach der Linie 111-111 in Fig. 2.
  • Fig. 4 zeigt eine zweite Ausführungsform der erfindungsgemäßen Vorrichtung in einem Schnitt ähnlich Fig. 1.
In the drawing, the invention is illustrated schematically using an exemplary embodiment.
  • FIG. 1 shows a section through a first embodiment of the device according to the invention along the line II in FIG. 2.
  • FIG. 2 shows a top view of the device according to the invention, but with the outer pane omitted and the inner pane partially broken away.
  • FIG. 3 shows a section along the line 111-111 in FIG. 2.
  • FIG. 4 shows a second embodiment of the device according to the invention in a section similar to FIG. 1.

Die Vorrichtung nach den Fig. 1 bis 3 weist einen Lautsprecher 1 mit einer Membrane 2 auf. Der Rand 3 des Lautsprechers 1 und der Außenring 16 der Membrane 2 ist an einem Rahmen 4 befestigt, der einen Teil des Gehäuses 25 der Vorrichtung bilden kann. Die Membrane 2 ist durch eine rotierende Scheibe 5 und durch eine feststehende Scheibe 6 abgedeckt. Beide Scheiben 5, sind mit Öffnungen 18 bzw. 19 versehen, zweckmäßig sind diese Scheibe als Lochscheiben bzw. als Lautsprechergitter ausgebildet. Die feststehende Scheibe 6 stützt sich mit einem Flansch 7 am Rahmen 4 ab und weist einen Lagerzapfen 8 auf, an dem ein Lager 8 der rotierenden Scheibe 5 gelagert ist, die um die Achse 17 des Lautsprechers 1 bzw. der Vorrichtung rotiert. Innerhalb der Membrane 2 sind Lichtquellen 10 angeordnet. Bei der Drehbewegung der rotierenden Scheibe 5 ergeben sich durch die wechselnde Überdeckung der Öffnung 18, 19 in den beiden Scheiben 5, 6 Lichteffekte nach außen. Die Öffnungen in diese Scheiben dienen weiters dazu, den Schall aus dem Lautsprecher 1 austreten zu lassen.The device according to FIGS. 1 to 3 has a loudspeaker 1 with a membrane 2. The edge 3 of the loudspeaker 1 and the outer ring 16 of the diaphragm 2 are fastened to a frame 4 which can form part of the housing 25 of the device. The membrane 2 is covered by a rotating disc 5 and by a fixed disc 6. Both disks 5 are provided with openings 18 and 19, respectively, this disk is expediently designed as perforated disks or as a speaker grille. The fixed disc 6 is supported with a flange 7 on the frame 4 and has a bearing pin 8 on which a bearing 8 of the rotating disc 5 is mounted, which rotates about the axis 17 of the loudspeaker 1 or the device. Light sources 10 are arranged within the membrane 2. During the rotating movement of the rotating disk 5, the alternating coverage of the opening 18, 19 in the two disks 5, 6 results in light effects to the outside. The openings in these panes also serve to allow the sound to emerge from the loudspeaker 1.

Zur Erzielung der Drehbewegung der rotierenden Scheibe 5 sind mehrere Mitnehmer 11 vorgesehen, deren jeder aus einem Draht besteht, der in Form eines Schraubenlinienabschnittes gebogen ist und bei 12 an einem von kegelstumpfförmigen Teil der Membrane 2 nach außen abstehenden Ringteil 13 durch Kleben, beispielsweise mittels eines Epoxyklebers, befestigt ist. Das freie Ende jedes Mitnehmers 11 weist eine Kappe 14 aus einem schallschluckenden Material auf, die an einem an der rotierenden Scheibe 5 angeordneten, in Richtung zur Membrane 2 abstehenden Ring 15 anliegt. Durch die im Betrieb des Lautsprechers 1 auftretenden Schwingungen der Membrane 2 erfolgt, insbesondere bei Frequenzen zwischen 60 und 120 Hz, eine Bewegung der Mitnehmer 11, die über die Kappen 14 durch Reibungsschluß auf den Ring 15 und damit auf die Scheibe 5 derart übertragen wird, daß eine Drehbewegung dieser Scheibe 5 um die Achse 17 erfolgt, ohne daß hiefür ein Elektromotor oder ein ähnlicher Antrieb erforderlich ist.To achieve the rotational movement of the rotating disk 5, a plurality of drivers 11 are provided, each of which consists of a wire which is bent in the form of a helical section and at 12 on an annular part 13 protruding from the frustoconical part of the membrane 2 by gluing, for example by means of a Epoxy adhesive is attached. The free end of each driver 11 has a cap 14 made of a sound-absorbing material, which abuts a ring 15 which is arranged on the rotating disk 5 and projects in the direction of the membrane 2. Due to the vibrations of the diaphragm 2 occurring during operation of the loudspeaker 1, in particular at frequencies between 60 and 120 Hz, the drivers 11 move, which is transmitted via the caps 14 by frictional engagement to the ring 15 and thus to the disk 5, that this disc 5 rotates about the axis 17 without an electric motor or similar drive being required for this.

Bei der Ausführungsform nach Fig. 4 dienen als Rotationsantrieb für die Scheibe 5 ebenfalls Mitnehmer 21, die jedoch von pinseiartigen Kohlenfaserbündeln gebildet sind. Jedes dieser Kohlefaserbündel ist mit einer Fassung 22 an der Scheibe 5 befestigt, wobei die Achse des jeweiligen Kohlefaserbündels schräg zur Achse 17 angeordnet ist. Die freien Enden der von den Kohlefaserbündeln gebildeten Mitnehmer 21 liegen an einem Außenring 16 der Membrane 2 an. Dieser Außenring 16 kann verhältnismäßig starr sein, überträgt jedoch die Schwingungen der Membrane 2 auf die Mitnehmer 21, von welchen zweckmäßig drei oder vier in regelmäßigen Abständen verteilt um den Umfang des Außenringes 16 angeordnet sind. Als Lichtquelle 10 dienen im Gehäuse 25, jedoch außerhalb der Membrane 2 angeordnete Leuchtdioden hoher Leistung und zweckmäßig in verschiedenen Farben. Diese Leuchtdioden sind am Umfang des Gehäuses 25 so schräg angebracht, daß sie in Richtung zur Achse 17 bzw. zum Lagerzapfen 8 strahlen. Die rotierende Scheibe 5 ist an ihrem Umfang mit einer Umbiegung 23 versehen und in diesem Bereich mit Öffnungen und bzw. oder Ausschnitten 24 ausgebildet, wodurch ein alternierender Lichteinfall des von den Lichtquellen 10 ausgesandten Lichtes zur Innenseite der Scheibe 5 erzielt wird. Dadurch lassen sich weitere Effekte erzielen, insbesondere bei Verwendung verschiedenfarbiger Lichtquellen 10. Die Lichtquellen 10 sind durch die äußere Scheibe 6 abgedeckt und dadurch geschützt, welche fest, jedoch abnehmbar, mit dem Gehäuse 25 verbunden ist.In the embodiment according to FIG. 4, drivers 21 also serve as a rotary drive for the disk 5, but are formed by brush-like carbon fiber bundles. Each of these carbon fiber bundles is fastened to the disk 5 with a holder 22, the axis of the respective carbon fiber bundle being arranged obliquely to the axis 17. The free ends of the drivers 21 formed by the carbon fiber bundles lie on an outer ring 16 of the membrane 2 at. This outer ring 16 can be relatively rigid, but transmits the vibrations of the diaphragm 2 to the drivers 21, of which three or four are expediently arranged at regular intervals around the circumference of the outer ring 16. Serving as the light source 10 in the housing 25, however, light-emitting diodes which are arranged outside the membrane 2 and are expediently in different colors. These LEDs are so inclined on the circumference of the housing 25 that they radiate in the direction of the axis 17 or the journal 8. The rotating disk 5 is provided on its circumference with a bend 23 and is formed in this area with openings and or or cutouts 24, as a result of which an alternating light incidence of the light emitted by the light sources 10 is achieved toward the inside of the disk 5. As a result, further effects can be achieved, in particular when light sources 10 of different colors are used. The light sources 10 are covered and thereby protected by the outer pane 6, which is firmly but detachably connected to the housing 25.

Bei einer abgewandelten Ausführungsform sind innerhalb der Membrane 2 keine Lichtquellen 10 vorgesehen, sondern es wird die Vorrichtung von außen, beispielsweise mittels zumindest eines Scheinwerfers 20 (Fig. 1) angestrahlt, dessen Licht somit auf die Außenseite der Scheibe 6 fällt. Die der Scheibe 6 zugewendete Oberfläche der rotierenden Scheibe 5 ist dann mit einem lichtreflektierenden Belag versehen, durch den das von den Scheinwerfern 20 ausgesendete Licht reflektiert wird, so daß sich gleichfalls Lichteffekte ergeben.In a modified embodiment, no light sources 10 are provided within the membrane 2, but the device is illuminated from the outside, for example by means of at least one headlight 20 (FIG. 1), the light of which thus falls on the outside of the pane 6. The surface of the rotating disc 5 facing the disc 6 is then provided with a light-reflecting coating through which the light emitted by the headlights 20 is reflected, so that light effects also result.

Auch die Membrane 2 kann zur besseren Ausnützung des von den Lichtquellen 10 ausgesandten Lichtes mit einem lichtreflektierenden Belag versehen sein.The membrane 2 can also be provided with a light-reflecting coating for better utilization of the light emitted by the light sources 10.

Claims (11)

1. A device for producing light effects, having two coaxially arranged discs (5, 6), of which one (5) is driven in a rotating motion by means actuated by sound vibrations, and of which at least one is illuminated by a light source (10), characterized in that the two discs (5, 6) having openings are arranged at the opening of the diaphragm (2) of a loudspeaker (1), and the means have at least one entrainment means (11) which is secured to the rotating disc (5) or to the diaphragm (2) and rests with its free end against the diaphragm (2) or against the rotating disc (5) in a friction-locking manner, so that a rotating motion of the disc (5) is produced by the vibrations of the diaphragm.
2. A device according to Claim 1, characterized in that the rotating disc (5) covers the opening of the diaphragm (2) of the loudspeaker (1).
3. A device according to Claim 1, characterized in that the entrainment means (11) comprises a wire bent into the shape of a helical section.
4. A device according to any one of Claims 1 to 3, characterized in that a ring (15), against which the free end of the entrainment means (11) rests, is secured on each side of the rotating disc (5), facing the diaphragm (2).
5. A device according to any one of Claims 1 to 4, characterized in that the entrainment means (11) is glued to the diaphragm (2), preferably by means of an epoxy adhesive.
6. A device according to any one of Claims 1 to 5, characterized in that the free end of the entrainment means (11) resting against the rotating disc (5) is provided with a cap (14) of sound-absorbing material, for example of rubber or a material similar to rubber.
7. A device according to Claim 1, characterized in that the entrainment means (21) comprises a bundle of fibres, preferably carbon fibres, arranged obliquely to the axis of the diaphragm (2).
8. A device according to Claim 7, characterized in that the fibre bundle is secured to the rotating disc (5) and rests with its free end against an outer ring (16) of the diaphragm (2).
9. A device according to any one of Claims 1 to 8, characterized in that the light source (10) is arranged inside the diaphragm (2) of the loudspeaker (1), the diaphragm (2) preferably being provided with a light-reflecting coating.
10. A device according to any one of Claims 1 to 8, characterized in that the side of one of the discs facing the observer is illuminated by the light source (20), and the other, rotating disc is provided on its side facing the observer with a light-reflecting coating.
11. A device according to any one of Claims 1 to 10, characterized in that the rotating disc (5) has on its edge a bent portion (23) which is provided with openings and/or recesses (24) and towards which light from at least one light source (10) is directed.
EP87905563A 1987-02-02 1987-08-27 Device for producing light effects Expired - Lifetime EP0346324B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0020587A AT385342B (en) 1987-02-02 1987-02-02 DEVICE FOR PRODUCING LIGHT EFFECTS
AT205/87 1987-02-02

Publications (2)

Publication Number Publication Date
EP0346324A1 EP0346324A1 (en) 1989-12-20
EP0346324B1 true EP0346324B1 (en) 1990-12-27

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EP87905563A Expired - Lifetime EP0346324B1 (en) 1987-02-02 1987-08-27 Device for producing light effects

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EP (1) EP0346324B1 (en)
JP (1) JPH02504111A (en)
KR (1) KR920010815B1 (en)
AT (1) AT385342B (en)
AU (1) AU610521B2 (en)
DE (1) DE3767166D1 (en)
WO (1) WO1988005685A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3922661A1 (en) * 1989-07-10 1991-01-24 Peter Bernhard Generation of moving coloured patterns - by passing beam of light through glass prism and then onto revolving mirrors
DE4440583C2 (en) * 1994-11-14 2002-02-28 Albert Baur Speaker Light Combination
DE10114048A1 (en) * 2001-03-15 2002-10-02 Johannes Rojahn Device for generating a light effect
DK2025193T3 (en) * 2006-05-17 2013-10-21 Francesco Pellisari Acoustic correction device
DE102009021144A1 (en) * 2009-05-13 2010-11-18 K+H Vertriebs- Und Entwicklungsgesellschaft Mbh Speaker device
DE102010062300B4 (en) 2010-12-01 2019-01-31 Sennheiser Electronic Gmbh & Co. Kg Speaker device
DE102012005706B4 (en) * 2012-03-20 2021-08-19 Daimler Ag Loudspeaker arrangement, in particular for a vehicle
KR101360062B1 (en) * 2012-12-12 2014-02-12 현대자동차 주식회사 Individual reading light for vehicle using its speaker
DE102016005453A1 (en) 2016-05-03 2017-02-16 Daimler Ag Method and device for lighting a loudspeaker, preferably in a vehicle
WO2020057819A1 (en) * 2018-09-17 2020-03-26 Arcelik Anonim Sirketi Illuminated speaker

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3473429A (en) * 1968-03-15 1969-10-21 William E Tandberg Sound to color transducer
US3603195A (en) * 1968-06-21 1971-09-07 Edmund Scient Co Music-responsive light display
GB1248821A (en) * 1969-07-21 1971-10-06 Edward Harold Phillips Entertainment device
US4085932A (en) * 1976-10-14 1978-04-25 Tomy Kogyo Co., Inc. Amusement device featuring variable lighting effects
US4232304A (en) * 1979-06-11 1980-11-04 Durley Iii Benton A Vibratory-rotary motion converters and display devices incorporating such converters
EP0099932A4 (en) * 1982-02-01 1984-07-05 Mitsubishi Electric Corp Speaker unit.

Also Published As

Publication number Publication date
DE3767166D1 (en) 1991-02-07
AU610521B2 (en) 1991-05-23
JPH02504111A (en) 1990-11-29
EP0346324A1 (en) 1989-12-20
AU7870287A (en) 1988-08-24
JPH0434918B2 (en) 1992-06-09
ATA20587A (en) 1987-08-15
AT385342B (en) 1988-03-25
KR920010815B1 (en) 1992-12-17
WO1988005685A1 (en) 1988-08-11
KR890700378A (en) 1989-04-24

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