DE280509C

DE280509C -

Info

Publication number: DE280509C
Application number: DENDAT280509D
Authority: DE

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

PATENTSCHRIFTPATENT LETTERING

JVl 280509 KLASSE 4 b. GRUPPEJVl 280509 CLASS 4 b. GROUP

Bühnenbeleuchtung. Patentiert im Deutschen Reiche vom 24.Oktober 1913 ab. Stage lighting. Patented in the German Empire on October 24, 1913.

Gegenstand der Erfindung ist ein für Bühnenzwecke bestimmtes Beleuchtungsverfahren mittels diffusen Lichtes, das durch zweckmäßig aus elektrischen Glühlampen bestehende Lichtquellen erzeugt wird, die in gleichmäßiger Verteilung zwischen einer diffus verteilenden und einer reflektierenden Wand angeordnet sind, wobei die diffus verteilende Wand dem zu beleuchtenden Raum zugewandt ist.The subject of the invention is a lighting method intended for stage purposes by means of diffuse light, the light sources expediently consisting of electric light bulbs is generated that is evenly distributed between a diffuse and distributing a reflective wall are arranged, the diffusely distributing wall to be illuminated Facing the room.

ίο Derartige Einrichtungen sind an sich nicht neu. Es ist zum Beispiel für die Zwecke der diffusen Raumbeleuchtung bereits vorgeschlagen worden, die Lichtquellen hinter Marmorplatten anzuordnen, die in gewissem Abstande vor den Wänden des betreffenden Raumes angebracht sind. Es ist ferner bekannt, in photographischen Ateliers und für ähnliche Zwecke diffuses Licht unter Benutzung von Gewebestoffen zu erzeugen, die zum 'Reflektieren und Verteilen des Lichtes dienen.ίο Such facilities are not in themselves New. It has already been proposed for the purposes of diffuse room lighting, for example been to arrange the light sources behind marble slabs, which are at a certain distance in front of the Walls of the room in question are attached. It is also known in photographic Ateliers and for similar purposes to generate diffuse light using fabrics, which serve to 'reflect and distribute the light.

Die Erfindung macht nun von diesen bekannten Einrichtungen in der Weise Gebrauch, daß die zur Beleuchtung dienenden Einzellichtquellen zweckmäßig in Form von Glühlampen genau in der Mitte zwischen den in heller Farbe gehaltenen oder noch besser mit weißem Stoff bespannten Wänden des Bühnenraumes und einer zweiten vor den Wänden angeordneten, aus weißen Stoffbahnen bestehenden Fläche angeordnet sind. Es hat sich ergeben, daß bei dieser Anordnung die vorderen Stoffbahnen das Licht der Glühlampen völlig gleichmäßig verteilen und zerstreuen, so daß weder Lichthöfe entstehen, noch Schatten zwischen den einzelnen Lichtquellen zu erkennen sind, die betreffenden Flächen vielmehr in einem diffusen, dem Tageslicht ähnlichen, völlig gleichförmigen Lichte erstrahlen, das den Eindruck einer künstlichen Lichtquelle kaum aufkommen läßt. Es ist auf diese Weise möglich, den teuren und für Bühnenzwecke schon seines großen Gewichtes und seiner Schwerfälligkeit wegen gar nicht in Betracht kommenden Marmor durch die wesentlich billigere und beweglichere Stoffbespannung zu ersetzen, die sich allen Raum-Verhältnissen bequem anpassen läßt und die im übrigen in sich bedeutend weniger Licht absorbiert und daher auch in bezug auf den Lichtverbrauch wesentliche Vorzüge bietet. Ein weiterer Vorteil der Verwendung von Stoffbahnen als lichtverteilende Flächen liegt in der Möglichkeit der Erzielung eigenartiger farbiger Lichtwirkungen durch Mischung des Lichtes von in verschiedenen Farben diffus leuchtenden Flächen dieser Art. 'The invention now makes use of these known devices in the manner that the individual light sources used for lighting are expediently in the form of incandescent lamps exactly in the middle between the light colored or even better with white fabric covered walls of the stage area and a second one in front of the walls, surface consisting of white strips of fabric are arranged. It turned out that at In this arrangement, the front panels of the light from the incandescent lamps are completely uniform distribute and disperse so that neither halos nor shadows arise between the individual light sources can be seen, the surfaces in question rather in a diffuse, Completely uniform light similar to daylight shine, which gives the impression of a artificial light source can hardly arise. It is possible in this way, the expensive and even for stage purposes because of its great weight and clumsiness marble out of consideration due to the much cheaper and more flexible fabric covering to replace, which can be easily adapted to all room conditions and which incidentally in itself significantly less light absorbed and therefore also offers significant advantages in terms of light consumption. Another advantage of using webs of fabric as light-distributing surfaces is in the possibility of achieving peculiar colored light effects by mixing the Light from surfaces of this kind that are diffusely shining in different colors. '

Auf der Zeichnung ist die Erfindung in einer Ausführungsform veranschaulicht, und zwar zeigtIn the drawing, the invention is illustrated in one embodiment, namely shows

Fig. ι ein Bühnenhaus im Grundriß, welches mit der zur Ausführung des neuen Verfahrens bestimmten Einrichtung ausgestattet ist, währendFig. Ι a stage in plan, which with the implementation of the new method certain facility is equipped while

Fig. 2 die Einrichtung zur Aufhängung und Verteilung der Lichtquellen hinter den leuchtenden Flächen in größerem Maßstabe veranschaulicht. 2 shows the device for suspending and distributing the light sources behind the illuminating ones Areas illustrated on a larger scale.

Die Seitenwände 1, 1 sowie der Hintergrund 2 des Bühnenraumes sind bei der dargestellten Ausführungsform mit hellen, zweckmäßig ganz weiß gehaltenen Stoffbahnen 3 bespannt. An Stelle dieser Stoffbespannung kann auch ein entsprechend heller Anstrich der Wände treten.The side walls 1, 1 and the background 2 of the stage area are in the illustrated embodiment with bright, expediently whole fabric strips held in white 3 covered. Instead of this fabric covering can also be a the walls should be painted accordingly.

Claims

Care must be taken that there are no pronounced reflex effects; A reflective oil paint, for example, should be avoided. Any window openings 4 are expediently first covered with a dark fabric, which is on the inner side with is covered with a sheet of white fabric.

At a distance of about one meter from the surfaces 3 are parallel to them further Arranged surfaces 5, which are also expediently made of hanging down from the ceiling individual There are panels of fabric. The color of these lengths of fabric depends on the desired one Light tint. In general, white fabrics are preferred.

Between . appropriately fireproof impregnated fabric webs 3 and 5, namely the individual light sources consisting of incandescent lamps 6 are arranged exactly in the middle. the Incandescent lamps are, as shown in FIG. 2, attached in rows on rods 7, which in large Number hang down next to each other from arranged in the vicinity of the ceiling rails 8. The rods 7 engage with hooks 9 loosely over the rails 8, so that they can be along the rail as desired can be moved. The supply lines for the incandescent lamps are accordingly designed to be movable.

Incandescent bulbs with colorless as well as any colored glass bulbs can of course be used Find use. The different colored pears can be grouped together in any order to create different mixed color effects to achieve. Facilities can also be made to switch off individual incandescent lamps or entire groups at will. and to switch on and to graduate in their lighting effect.

The impression created by the completely diffuse uniform light and at the same time with great Intensity shining wall surfaces is produced is a very peculiar one. By the change in intensity as well as in the color of the diffused radiating from the surfaces Light, very effective stage effects can be achieved, which are the result of the usual Types of lighting are considerably superior to the effects that can be achieved. It is also important that the light cones of the headlights and other projection apparatus, by means of their details on the stage or individual persons should be specially illuminated, do not have a disruptive effect with the new type of lighting, because they are in the atmosphere of light, which is uniformly filled by the diffused light of the luminous surfaces the stage disappear completely.

Pa τ ε ν τ claim:

Stage lighting in which the light sources are regularly distributed between a diffusely distributing front wall and one behind the light sources reflective wall, characterized in that the made of translucent Fabrics existing walls at such a distance from the light sources are arranged so that they are exactly in the middle between the lengths of fabric.

1 sheet of drawings.