EP0191264B1 - Non-blinding device for large-area lighting fixtures - Google Patents

Non-blinding device for large-area lighting fixtures Download PDF

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Publication number
EP0191264B1
EP0191264B1 EP85730137A EP85730137A EP0191264B1 EP 0191264 B1 EP0191264 B1 EP 0191264B1 EP 85730137 A EP85730137 A EP 85730137A EP 85730137 A EP85730137 A EP 85730137A EP 0191264 B1 EP0191264 B1 EP 0191264B1
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EP
European Patent Office
Prior art keywords
prisms
prism
glare
lighting means
side face
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EP85730137A
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German (de)
French (fr)
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EP0191264A2 (en
EP0191264A3 (en
EP0191264B2 (en
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Armin Bansbach
Dieter Albert
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Semperlux GmbH
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Semperlux GmbH
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Priority to AT85730137T priority Critical patent/ATE56804T1/en
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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
    • F21V5/00—Refractors for light sources
    • F21V5/02—Refractors for light sources of prismatic shape

Definitions

  • the present invention relates to a device for removing glare from large-area lamps of the type specified in the preamble of the main claim.
  • the lamps used which have a high intrinsic luminance, must therefore be glare-free. This is particularly the case with large-area lamps such as frosted incandescent lamps, high pressure mercury lamps or fluorescent lamps.
  • Known anti-glare measures are the arrangement of simple screens, mirror systems and prism systems. Mirror systems and prism systems generally have the advantage that the light is not destroyed by absorption, but can be directed in the desired directions.
  • a disadvantage of conventional prism systems has been that the light sources are very close to the prisms due to their construction, which makes it inevitable that the light rays not only shine onto the prisms from a wide variety of angles, but that they can also radiate in an uncontrolled manner, which results in the intended effect is badly deteriorated.
  • the invention has for its object to provide a prism system in which, despite the arrangement of large-area lamps or large-area illuminants close to a prism, a controlled beam path is made possible, which in particular allows lateral light rays to emerge without glare in the range up to approximately 30 ° relative to the horizontal.
  • the three-sided prism 1 shown in Fig. 1 shows a cross section in which the one side surface 2 is arranged vertically and the other side surface 3 horizontally, the side surfaces 2 and 3 forming an angle of 90 ° with each other and the horizontal side surface 3 with the Base 4 forms a wedge angle of 40 °. Glare control and light guidance is achieved by total reflection inside the prism and by refraction of the light rays. From the large-area illuminant 5, which is indicated by a dash-dotted vertical line, the light rays 6 impinge on the prism 1 from a wide variety of angles. A strong radiation 7 then takes place from the prism 1 in the lower region and a weak radiation 8 in the upper region, while a lateral region 9 extends in between, from which no radiation takes place at all without light being destroyed by absorption.
  • the glare effect achieved is, as has been shown in detailed test series, the best in the wedge angle range around 40 °, a slight scatter in the efficiency depending on the respective refractive index of the material used.
  • the material for the prisms is crystal-clear plastics or mineral glass.
  • a large-area illuminant can also be fully glare-free in this way. It would of course be possible in principle to get by with a prism, which would have to be the size of the illuminant. Theoretically, such a prism would cause the smallest possible interference due to rounding radii of the prism edges that are unavoidable in practice, but for reasons of material savings and manufacturing possibilities, prism rings or squares, rectangles and the like will be used. use composite prism poles.
  • the stacked prisms enclose the standing or lying lamp preferably symmetrically.
  • 3 shows a standing ellipsoidal illuminant 5 in a system of prism rings 1 stacked one above the other.
  • the ellipsoid lamp 5 is fastened in a socket 10 and this is connected to the prisms in the usual way by fastening means 11.
  • Such an ellipsoidal lamp 5 can, of course, also be placed horizontally in a rectangular prism system (FIGS. 4a and 4b).
  • the rectangular prism system is composed of prism poles 1.
  • Fluorescent lamps 12 can also be glare-free in the same way, as can be seen from FIGS. 5a and 5b.
  • the prism system has the same structure as the horizontal ellipsoid lamp in FIGS. 4a and 4b.
  • the same glare control advantages also result in the recessed ceiling spotlight shown in FIG. 6.
  • an ellipsoid lamp 5 with socket 10 is arranged in the ceiling such that part of the lamp protrudes below a ceiling plate 13.
  • This protruding part is in turn surrounded by annular prisms 1 stacked one on top of the other.
  • annular prisms 1 stacked one on top of the other.
  • Fig. 7 shows a pendulum heater that hangs from a ceiling 13.
  • the large-area illuminant 5 is surrounded in a cylinder shape by a prism system consisting of stacked prisms, wherein the stacked prisms can also be made in one piece. No side radiation occurs with this anti-glare variant either.
  • an undesired effect can occur at high luminous intensities, which is indicated in FIG.
  • the rays 14 originating from the illuminant can strike the base surface 4 of the prism in such a way that a small proportion of surface reflection 15 reflects off the base surface 4 and passes through the horizontal side surface 3 of the prism located above it to its base surface and then through the vertical side surface 2 in radiation 16 exit.
  • Such an unwanted risk of glare is countered either by roughening or blackening the horizontal side surfaces of the prisms, so that the reflection portion 15 cannot enter the prism above.
  • an opaque intermediate ring 17 can be attached below the horizontal side surface 3. In this way, complete lateral glare reduction is achieved even at high light intensities.
  • the stacked prisms can e.g. be manufactured as a one-piece cylinder. Better results are achieved, however, if the stacked prism rings or rods 1 are connected by threaded rods in a manner known per se, because in this way the unavoidable rounding radii at the prism edges which are caused by production can be obtained with greater precision, i.e. turn out smaller than with a one-piece cylinder.
  • 10 shows details of such an arrangement, again with the illuminant 5 in a socket 10 and fastening means 11, the prism rings 1 being connected by threaded rods 19. However, Fig. 10 also shows that additional top covers can be attached by means of head mirrors or heat shields 20. This is recommended if you illuminate the bulbs with the prism systems in clear plastic moldings, e.g. used as spherical lights.
  • the diameter of the prism rings 1 can be variable, so that the view of the prism system from the side no longer has a cylindrical shape.
  • Such embodiments are also interesting anti-glare variants, particularly for spherical lights.

Abstract

A non-glare screen is assembled of prismatic rings stacked one on the other and coaxially enclosing a light emitting surface. Each ring has a cross-section of a right triangle. One leg of the triangle is perpendicular to the axis of the light emitting surface and the hypoteruse forms with the one leg an angle between 35 DEG to 45 DEG , preferably 40 DEG .

Description

Die vorliegenden Erfindung betrifft eine Einrichtung zum Entblenden von großflächigen Leuchtmitteln der im Oberbegriff des Hauptanspruchs angegebenen Art.The present invention relates to a device for removing glare from large-area lamps of the type specified in the preamble of the main claim.

Bei der Innen- und Außenbeleuchtung ist man bestrebt, einen hohen Beleuchtungskomfort bzw. Sehkomfort zu erreichen. Deshalb müssen die verwendeten Lampen, die eine hohe Eigenleuchtdichte aufweisen, entblendet werden. Dies ist insbesondere der Fall bei großflächigen Leuchtmitteln wie z.B. mattierten Glühlampen, Quecksilberdampf-Hochdrucklampen oder Leuchtstofflampen. Bekannte Entblendungmaßnahmen sind die Anordnung von einfachen Schirmen, Spiegelsystemen und Prismensystemen. Spiegelsysteme und Prismensysteme haben allgemein den Vorteil, daß das Licht nicht durch Absorption vernichtet wird, sondern in die gewünschten Richtungen gelenkt werden kann. Nachteilig hat sich bei üblichen Prismensystemen ausgewirkt, daß die Leuchtmittel konstruktionsbedingt sehr dicht an den Prismen liegen, wodurch es unvermeidbar wird, daß die Lichtstrahlen nicht nur aus den unterschiedlichsten Winkeln auf die Prismen einstrahlen, sondern daß sie auch unkontrolliert abstrahlen können, wodurch die beabsichtigte Wirkung stark verschlechtert wird.When it comes to indoor and outdoor lighting, the aim is to achieve a high level of lighting comfort and visual comfort. The lamps used, which have a high intrinsic luminance, must therefore be glare-free. This is particularly the case with large-area lamps such as frosted incandescent lamps, high pressure mercury lamps or fluorescent lamps. Known anti-glare measures are the arrangement of simple screens, mirror systems and prism systems. Mirror systems and prism systems generally have the advantage that the light is not destroyed by absorption, but can be directed in the desired directions. A disadvantage of conventional prism systems has been that the light sources are very close to the prisms due to their construction, which makes it inevitable that the light rays not only shine onto the prisms from a wide variety of angles, but that they can also radiate in an uncontrolled manner, which results in the intended effect is badly deteriorated.

Aus der US-A-3 113 728 ist eine Leuchtenkonstruktion bekannt, die zur gleichzeitigen Verwendung bei Tageslicht und von künstlichem Licht bestimmt ist. Dabei sind Prismen mit der Innenseite einer die Lichtquelle umgebenden Gehäusewand einstückig verbunden, wobei die Grundfläche der Prismen nach unten gerichtet sind. Auf diese Weise treten die Strahlen durch die Gehäusewand unregelmäßig zur Seite und nach oben aus.From US-A-3 113 728 a luminaire construction is known which is intended for simultaneous use in daylight and artificial light. Prisms are integrally connected to the inside of a housing wall surrounding the light source, the base of the prisms being directed downward. In this way, the rays emerge irregularly to the side and up through the housing wall.

Der Erfindung liegt die Aufgabe zugrunde, ein Prismensystem zu schaffen, bei welchem trotz Anordnung großflächiger Lampen oder großflächiger Leuchtmittel dicht vor einem Prisma ein kontrollierter Strahlengang ermöglicht wird, der insbesondere seitliche Lichtstrahlen in dem Bereich bis zu etwa 30° gegen die Waagerechte blendungsfrei austreten läßt.The invention has for its object to provide a prism system in which, despite the arrangement of large-area lamps or large-area illuminants close to a prism, a controlled beam path is made possible, which in particular allows lateral light rays to emerge without glare in the range up to approximately 30 ° relative to the horizontal.

Diese Aufgabe wird bei einer Einrichtung der eingangs erwähnten Art erfindungsgemäß mit den im Kennzeichen des Hauptanspruchs angegebenen Mitteln gelöst.This object is achieved according to the invention in a device of the type mentioned at the outset with the means specified in the characterizing part of the main claim.

Weiterbildungen der Erfindung sind in den Unteransprüchen angegeben.Developments of the invention are specified in the subclaims.

Die Erfindung wird nachstehend anhand von in der Zeichnung dargestellten Ausführungsbeispielen des Erfindungsgegenstandes näher erläutert. Es zeigen

  • Fig. 1 einen Querschnitt durch ein Prisma, das erfindungsgemäß ausgebildet ist, mit von dem Leuchtmittel ausgehender Einstrahlung und vom Prisma verursachter Abstrahlung;
  • Fig. 2 eine schematische Ansicht eines großflächigen Leuchtmittels mit zugehörigem Prismensystem;
  • Fig. 3 ein stehendes ellipsoides Leuchtmittel in einem Prismenringsystem;
  • Fig. 4a und 4b Vorder- und Seitenansicht einer liegenden Ellipsoidlampe in einem rechteckigen Prismensystem;
  • Fig. 5a und 5b Vorder- und Seitenansicht einer Leuchtstofflampe in einem rechteckigen Prismensystem;
  • Fig. 6 einen Deckeneinbaustrahler in einem zylinderförmigen Prismensystem;
  • Fig. 7 einen Pendelstrahler in einem zylinderförmigen Prismensystem;
  • Fig. 8 eine schematische Strahlenführung mit Blendungsgefahr;
  • Fig. 9 die Wirkung von Zwischenringen bei der Strahlenführung in Fig. 8;
  • Fig. 10 bei einer Fig. 3 ähnlichen Anordnung die Verbindung der Prismenringe und die Verwendung von Kopfspiegeln;
  • Fig. 11 und 11b den Aufbau von ringförmigen Prismen verschiedenen Durchmessers.
The invention is explained in more detail below with reference to exemplary embodiments of the subject matter shown in the drawing. Show it
  • 1 shows a cross section through a prism, which is designed according to the invention, with radiation emanating from the illuminant and radiation caused by the prism;
  • 2 shows a schematic view of a large-area illuminant with an associated prism system;
  • 3 shows a standing ellipsoidal illuminant in a prism ring system;
  • 4a and 4b front and side view of a lying ellipsoid lamp in a rectangular prism system;
  • 5a and 5b front and side view of a fluorescent lamp in a rectangular prism system;
  • 6 shows a recessed ceiling spotlight in a cylindrical prism system;
  • 7 shows a pendulum emitter in a cylindrical prism system;
  • 8 shows a schematic radiation guide with risk of glare;
  • 9 shows the effect of intermediate rings in the beam guidance in FIG. 8;
  • 10 shows the connection of the prism rings and the use of head mirrors in an arrangement similar to FIG. 3;
  • 11 and 11b the structure of annular prisms of different diameters.

Das in Fig. 1 dargestellte dreiseitige Prisma 1 läßt einen Querschnitt erkennen, bei dem die eine Seitenfläche 2 senkrecht und die andere Seitenfläche 3 waagerecht angeordnet sind, wobei die Seitenflächen 2 und 3 einen Winkel von 90° miteinander bilden und die waagerechte Seitenfläche 3 mit der Grundfläche 4 einen Keilwinkel von 40° bildet. Die Entblendung und Lichtführung wird durch Totalreflexion im Inneren des Prismas und durch Brechung der Lichtstrahlen erreicht. Von dem großflächigen Leuchtmittel 5, welches durch eine strichpunktierte senkrechte Linie angedeutet ist, treffen die Lichtstrahlen 6 aus den unterschiedlichsten Winkeln auf das Prisma 1 auf. Vom Prisma 1 findet dann eine starke Abstrahlung 7 in den unteren Bereich sowie eine schwache Abstrahlung 8 in den oberen Bereich statt, während sich dazwischen ein seitlicher Bereich 9 erstreckt, aus welchem überhaupt keine Abstrahlung erfolgt, ohne daß Licht durch Absorption vernichtet wird.The three-sided prism 1 shown in Fig. 1 shows a cross section in which the one side surface 2 is arranged vertically and the other side surface 3 horizontally, the side surfaces 2 and 3 forming an angle of 90 ° with each other and the horizontal side surface 3 with the Base 4 forms a wedge angle of 40 °. Glare control and light guidance is achieved by total reflection inside the prism and by refraction of the light rays. From the large-area illuminant 5, which is indicated by a dash-dotted vertical line, the light rays 6 impinge on the prism 1 from a wide variety of angles. A strong radiation 7 then takes place from the prism 1 in the lower region and a weak radiation 8 in the upper region, while a lateral region 9 extends in between, from which no radiation takes place at all without light being destroyed by absorption.

Der erzielte Entblendungseffekt ist, wie sich in eingehenden Versuchsreihen herausgestellt hat, im Keilwinkelbereich um 40° am besten, wobei eine geringfügige Streuung des Wirkungsgrades von jeweiligen Brechungsindex des verwendeten Materials abhängt. Als Werkstoff für die Prismen bieten sich glasklare Kunststoffe oder auch Mineralglas an.The glare effect achieved is, as has been shown in detailed test series, the best in the wedge angle range around 40 °, a slight scatter in the efficiency depending on the respective refractive index of the material used. The material for the prisms is crystal-clear plastics or mineral glass.

Wenn die Prismen übereinander geschichtet werden (Fig. 2), kann auf diese Weise auch ein großflächiges Leuchtmittel voll entblendet werden. Es wäre natürlich möglich, im Prinzip mit einem Prisma auszukommen, das aber die Größe des Leuchtmittels haben müßte. Theoretisch würde ein solches Prisma den kleinstmöglichen Störeinfluß durch in der Praxis unvermeidbare Verrundungsradien der Prismenkanten entstehen lassen, doch wird man aus Gründen der Materialeinsparung und der Herstellungsmöglichkeiten Prismenringe oder zu Quadraten, Rechtecken u.dgl. zusammengesetzte Prismenstangen verwenden.If the prisms are stacked on top of one another (FIG. 2), a large-area illuminant can also be fully glare-free in this way. It would of course be possible in principle to get by with a prism, which would have to be the size of the illuminant. Theoretically, such a prism would cause the smallest possible interference due to rounding radii of the prism edges that are unavoidable in practice, but for reasons of material savings and manufacturing possibilities, prism rings or squares, rectangles and the like will be used. use composite prism poles.

Die übereinander geschichteten Prismen umschließen das stehende oder liegende Leuchtmittel vorzugsweise symmetrisch. So zeigt Fig. 3 ein stehendes ellipsoides Leuchtmittel 5 in einem System aus übereinander geschichteten Prismenringen 1. Dabei ist die Ellipsoidlampe 5 in einer Fassung 10 befestigt und diese mit den Prismen in üblicher Weise durch Befestigungsmittel 11 verbunden.The stacked prisms enclose the standing or lying lamp preferably symmetrically. 3 shows a standing ellipsoidal illuminant 5 in a system of prism rings 1 stacked one above the other. The ellipsoid lamp 5 is fastened in a socket 10 and this is connected to the prisms in the usual way by fastening means 11.

Eine solche Ellipsoidlampe 5 kann natürlich auch liegend in einem rechteckigen Prismensystem angebracht werden (Fig. 4a und 4b). Das rechteckige Prismensystem ist aus Prismenstangen 1 zusammengesetzt.Such an ellipsoidal lamp 5 can, of course, also be placed horizontally in a rectangular prism system (FIGS. 4a and 4b). The rectangular prism system is composed of prism poles 1.

Auf die gleiche Weise können auch Leuchtstofflampen 12 entblendet werden, wie sich aus Fig. 5a und 5b ergibt. Das Prismensystem hat dabei den gleichen Aufbau wie bei der liegenden Ellipsoidlampe in Fig. 4a und 4b. Die gleichen Entblendungsvorteile ergeben sich auch bei dem in Fig. 6 dargestellten Deckeneinbaustrahler. Hier ist eine Ellipsoidlampe 5 mit Fassung 10 derart in der Decke angeordnet, daß ein Teil der Lampe unterhalb einer Deckenplatte 13 herausragt. Dieser herausragende Teil ist wiederum von übereinander geschichteten ringförmigen Prismen 1 umgeben. Auch hier ist deutlich erkennbar, daß keine Abstrahlung im Seitenbereich erfolgt, sondern lediglich die Hauptabstrahlung 7 nach unten und die Nebenabstrahlung 8 nach oben, wobei letztere zur Aufhellung der Decke 13 beiträgt.Fluorescent lamps 12 can also be glare-free in the same way, as can be seen from FIGS. 5a and 5b. The prism system has the same structure as the horizontal ellipsoid lamp in FIGS. 4a and 4b. The same glare control advantages also result in the recessed ceiling spotlight shown in FIG. 6. Here, an ellipsoid lamp 5 with socket 10 is arranged in the ceiling such that part of the lamp protrudes below a ceiling plate 13. This protruding part is in turn surrounded by annular prisms 1 stacked one on top of the other. Here, too, it can be clearly seen that there is no radiation in the side area, but only the main radiation 7 downwards and the secondary radiation 8 upwards, the latter contributing to brightening the ceiling 13.

Fig. 7 zeigt einen Pendelstrahler, der von einer Decke 13 herabhängt. Das großflächige Leuchtmittel 5 ist von einem aus übereinander geschichteten Prismen bestehenden Prismensystem zylinderförmig umgeben, wobei die übereinander geschichteten Prismen auch einstückig ausgeführt sein können. Auch bei dieser Entblendungsvariante tritt keine seitliche Abstrahlung auf.Fig. 7 shows a pendulum heater that hangs from a ceiling 13. The large-area illuminant 5 is surrounded in a cylinder shape by a prism system consisting of stacked prisms, wherein the stacked prisms can also be made in one piece. No side radiation occurs with this anti-glare variant either.

Bei der Übereinanderschichtung der Prismen 1 kann bei hohen auftretenden Lichtstärken ein unerwünschter Effekt entstehen, der in Fig. 8 angedeutet ist und insbesondere bei Außenleuchteinrichtungen eine gewisse Blendungsgefahr mit sich bringt. Die vom Leuchtmittel herrührenden Strahlen 14 können so auf die Grundfläche 4 des Prismas auftreffen, daß ein kleiner Oberflächenreflexionsanteil 15 von der Grundfläche 4 reflektiert und durch die waagerechte Seitenfläche 3 des darüber befindlichen Prismas an dessen Grundfläche gelangt und dann durch die senkrechte Seitenfläche 2 in Strahlung 16 austritt. Einer solchen ungewollten Blendungsgefahr begegnet man entweder dadurch, daß die waagerechten Seitenflächen der Prismen aufgerauht oder geschwärzt werden, so daß der Reflexionsanteil 15 nicht in das darüberliegende Prisma eintreten kann. Stattdessen kann man aber auch, wie in Fig. 9 gezeigt, einen lichtundurchlässigen Zwischenring 17 unterhalb der waagerechten Seitenfläche 3 anbringen. Auf diese Weise wird auch bei hohen auftretenden Lichtstärken eine vollkommene seitliche Entblendung erzielt.When the prisms 1 are layered one on top of the other, an undesired effect can occur at high luminous intensities, which is indicated in FIG. The rays 14 originating from the illuminant can strike the base surface 4 of the prism in such a way that a small proportion of surface reflection 15 reflects off the base surface 4 and passes through the horizontal side surface 3 of the prism located above it to its base surface and then through the vertical side surface 2 in radiation 16 exit. Such an unwanted risk of glare is countered either by roughening or blackening the horizontal side surfaces of the prisms, so that the reflection portion 15 cannot enter the prism above. Instead, however, as shown in FIG. 9, an opaque intermediate ring 17 can be attached below the horizontal side surface 3. In this way, complete lateral glare reduction is achieved even at high light intensities.

Es ist aber auch möglich, diese Entblendung etwa für Farbeffekte auszunutzen, indem man farbige transparente Zwischenlagen 17 verwendet, um eine Färbung der Prismen zu erreichen, obwohl in den eigentlichen Abstrahlbereichen 7 und 8 das Lampenlicht ohne Farbverschiebung das Prisma 1 verläßt. Ein solcher farbiger Lichtaustritt erfolgt in einem relativ kleinen Winkelbereich, wie in Fig. 9 bei 18 angedeutet. Die Zwischenlagen 17 können insbesondere im Außenbereich auch als dünne Dichtungsscheiben ohne weitere Schutzeinrichtung eingesetzt werden.However, it is also possible to use this glare reduction, for example for color effects, by using colored transparent intermediate layers 17 in order to achieve a coloring of the prisms, although in the actual radiation areas 7 and 8 the lamp light leaves the prism 1 without a color shift. Such colored light emission occurs in a relatively small angular range, as indicated at 18 in FIG. 9. The intermediate layers 17 can also be used in particular in the outside area as thin sealing disks without any further protective device.

Wie weiter oben erwähnt, können die übereinander geschichteten Prismen z.B. als einstückige Zylinder hergestellt werden. Bessere Ergebnisse erzielt man jedoch, wenn die übereinander geschichteten Prismenringe oder -stangen 1 durch Gewindestangen in an sich bekannter Weise verbunden werden, weil auf diese Weise die unvermeidbaren, herstellungsbedingten Verrundungsradien an den Prismenkanten mit größerer Präzision zu erhalten sind, d.h. kleiner ausfallen als bei einem einstückigen Zylinder. So zeigt Fig. 10 Einzelheiten einer solchen Anordnung, und zwar wiederum mit dem Leuchtmittel 5 in einer Fassung 10 und Befestigungsmitteln 11, wobei die Prismenringe 1 durch Gewindestangen 19 verbunden sind. Außerdem aber läßt Fig. 10 erkennen, daß man auch zusätzliche obere Abdeckungen durch Kopfspiegel oder Hitzeschilde 20 anbringen kann. Dies empfiehlt sich, wenn man die Leuchtmittel mit den Prismensystemen in klaren Kunststoff- Formkörpern, z.B. als Kugelleuchten, verwendet.As mentioned above, the stacked prisms can e.g. be manufactured as a one-piece cylinder. Better results are achieved, however, if the stacked prism rings or rods 1 are connected by threaded rods in a manner known per se, because in this way the unavoidable rounding radii at the prism edges which are caused by production can be obtained with greater precision, i.e. turn out smaller than with a one-piece cylinder. 10 shows details of such an arrangement, again with the illuminant 5 in a socket 10 and fastening means 11, the prism rings 1 being connected by threaded rods 19. However, Fig. 10 also shows that additional top covers can be attached by means of head mirrors or heat shields 20. This is recommended if you illuminate the bulbs with the prism systems in clear plastic moldings, e.g. used as spherical lights.

Aus Fig. 11a und 11b ist ersichtlich, daß die Durchmesser der Prismenringe 1 veränderlich sein können, so daß die Ansicht des Prismensystems von der Seite her nicht mehr Zylinderform aufweist. Auch solche Ausführungsformen sind interessante Entblendungsvarianten, insbesondere für Kugelleuchten.11a and 11b that the diameter of the prism rings 1 can be variable, so that the view of the prism system from the side no longer has a cylindrical shape. Such embodiments are also interesting anti-glare variants, particularly for spherical lights.

Claims (8)

1. An antiglare device for large area lighting means for interior and exterior lighting using superposed prisms surrounding the lighting means, characterized in that three-sided prisms (1) whose side faces (2, 3) form an angle of 90° are arranged vertically with one side face (2) and horizontally with their other side face (3), the edges lying opposite the vertical side faces facing the lighting means (5), and in that the horizontal side face (3) forms a prism angle of 35° to 45°, preferably 40°, with the base (4) facing upwards.
2. A device according to claim 1, characterized in that the prisms (1) are detachably or non- detachably interconnected.
3. A device according to claim 1 or 2, characterized in that the prisms (1) are designed as circular or oval rings.
4. A device according to claim 1 or 2, characterized in that the prisms (1) consist of rods arranged in squares, rectangles or other polygons.
5. A device according to claim 3 or 4, characterized in that the horizontal side faces (3) of the prisms (1) are roughened or darkened.
6. A device according to claim 3 or 4, characterized in that opaque foils (15) are arranged between the prisms (1).
7. A device according to claim 3 or 4, characterized in that coloured opaque foils are arranged between the prisms (1).
8. A device according to claim 3, characterized in that the diameters of the circular prisms (1) have different sizes.
EP85730137A 1985-02-13 1985-10-04 Non-blinding device for large-area lighting fixtures Expired - Lifetime EP0191264B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85730137T ATE56804T1 (en) 1985-02-13 1985-10-04 DEVICE FOR BLINDING LARGE-SCALE LAMPS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8504325U DE8504325U1 (en) 1985-02-13 1985-02-13 Device for glare control of large-area lamps
DE8504325U 1985-02-13

Publications (4)

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EP0191264A2 EP0191264A2 (en) 1986-08-20
EP0191264A3 EP0191264A3 (en) 1988-07-13
EP0191264B1 true EP0191264B1 (en) 1990-09-19
EP0191264B2 EP0191264B2 (en) 1993-10-06

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EP85730137A Expired - Lifetime EP0191264B2 (en) 1985-02-13 1985-10-04 Non-blinding device for large-area lighting fixtures

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US (1) US4669034A (en)
EP (1) EP0191264B2 (en)
JP (1) JPS61188805A (en)
AT (1) ATE56804T1 (en)
AU (1) AU578326B2 (en)
DE (2) DE8504325U1 (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4972338A (en) * 1985-06-13 1990-11-20 Intel Corporation Memory management for microprocessor system
US4961622A (en) * 1988-02-25 1990-10-09 University Of Houston - University Park Optical coupler and refractive lamp
US4922394A (en) * 1988-10-20 1990-05-01 Liu C H Glass desk lamp
US4969075A (en) * 1989-05-05 1990-11-06 Steelcase Inc. Low-glare light
DE9104995U1 (en) * 1991-04-23 1991-06-27 Siemens Ag, 8000 Muenchen, De
SE503306C2 (en) * 1994-03-16 1996-05-13 Itab Ind Ab ILLUMINATOR
US5440467A (en) * 1994-04-22 1995-08-08 Steelcase Inc. Task light
US5636057A (en) * 1995-02-10 1997-06-03 Ecolux Inc. Prismatic toroidal lens and traffic signal light using this lens
JPH1097213A (en) * 1996-09-25 1998-04-14 Matsushita Electric Works Ltd Flash type calling chime
US6570505B1 (en) 1997-12-30 2003-05-27 Gelcore Llc LED lamp with a fault-indicating impedance-changing circuit
JP3104870B2 (en) * 1998-01-29 2000-10-30 スタンレー電気株式会社 Car lamp
US6915039B2 (en) * 2002-11-05 2005-07-05 Federal-Mogul World Wide, Inc. Light collectors with angled input surfaces for use in an illumination system
ATE352011T1 (en) * 2003-07-24 2007-02-15 Johannes Jungel-Schmid ROOM LIGHT DEVICE
DE102005047746A1 (en) 2005-09-28 2007-05-24 Semperlux Ag - Lichttechnische Werke - Arrangement for targeted de-glare of outdoor lights in the vertical and horizontal axis
US7527399B2 (en) * 2007-05-14 2009-05-05 Thomas Feiereisen Self-contained full light cut-off light pollution-free bulb
CN101800011B (en) * 2010-04-07 2014-04-30 海洋王照明科技股份有限公司 Gateway marking device
DE102019103855B4 (en) 2019-02-15 2021-09-30 Lisa Dräxlmaier GmbH Vehicle interior lighting device

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US616400A (en) * 1898-12-20 Eemy burger
US1596161A (en) * 1924-10-21 1926-08-17 Holophane Glass Company Luminaire
GB256197A (en) * 1925-07-29 1926-10-28 Charles Gaston Picard Improvements in headlights for automobiles and like vehicles
US2003804A (en) * 1932-07-21 1935-06-04 Gen Motors Corp Lens
GB429340A (en) * 1933-08-25 1935-05-27 Andries Carl Cilliers Optical device suitable for selectively transmitting non-parallel light rays
US2015235A (en) * 1933-11-03 1935-09-24 Holophane Co Inc Prismatic light controlling device and method of making the same
CH186375A (en) * 1935-05-03 1936-09-15 Foltzer Joseph Glass reflector on lamps.
US3113728A (en) * 1960-06-24 1963-12-10 Owens Illinois Glass Co Artificial light and daylighting structure
US3371201A (en) * 1964-12-16 1968-02-27 Joslyn Mfg & Supply Co Luminaire
GB1209377A (en) * 1968-07-31 1970-10-21 Ignacio Goytisolo Taltavull Lighting fitting
JPS4811754U (en) * 1971-06-21 1973-02-09
JPS5831391Y2 (en) * 1973-09-28 1983-07-12 シ−メンス アクチエンゲゼルシヤフト Coil Kenkaiyo Hojig
US3988609A (en) * 1975-03-14 1976-10-26 K-S-H, Inc. Lighting panel and luminaire using it
US4118763A (en) * 1976-04-12 1978-10-03 General Electric Company Variable transmission prismatic refractors
AU2183677A (en) * 1977-02-01 1978-08-10 Shemitz S R Lighting system
US4233651A (en) * 1978-03-30 1980-11-11 Keene Corporation Work area lighting system
US4462068A (en) * 1982-06-24 1984-07-24 Manville Service Corporation Luminaire with improved lens structure

Also Published As

Publication number Publication date
EP0191264A2 (en) 1986-08-20
EP0191264A3 (en) 1988-07-13
ATE56804T1 (en) 1990-10-15
AU5001785A (en) 1986-08-21
AU578326B2 (en) 1988-10-20
EP0191264B2 (en) 1993-10-06
DE3579806D1 (en) 1990-10-25
US4669034A (en) 1987-05-26
JPS61188805A (en) 1986-08-22
JPH0375963B2 (en) 1991-12-04
DE8504325U1 (en) 1985-07-04

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