EP0684421A1 - Variable colour projector - Google Patents

Variable colour projector Download PDF

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Publication number
EP0684421A1
EP0684421A1 EP95810321A EP95810321A EP0684421A1 EP 0684421 A1 EP0684421 A1 EP 0684421A1 EP 95810321 A EP95810321 A EP 95810321A EP 95810321 A EP95810321 A EP 95810321A EP 0684421 A1 EP0684421 A1 EP 0684421A1
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EP
European Patent Office
Prior art keywords
lamps
projector according
plate
projector
filters
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.)
Granted
Application number
EP95810321A
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German (de)
French (fr)
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EP0684421B1 (en
Inventor
James Rosset
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Individual
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Individual
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    • 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
    • F21S10/02—Lighting devices or systems producing a varying lighting effect changing colors
    • 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
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/16—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting
    • 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
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/16—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting
    • F21V17/162—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting the parts being subjected to traction or compression, e.g. coil springs
    • 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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/60—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air
    • F21V29/67—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air characterised by the arrangement of fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/40—Lighting for industrial, commercial, recreational or military use
    • F21W2131/406—Lighting for industrial, commercial, recreational or military use for theatres, stages or film studios

Definitions

  • the present invention is in the field of lighting and relates more particularly to a color-changing projector, used for example on a stage for shows.
  • Devices for variable lighting effects have been known for a long time and using color filters arranged in a beam of white light.
  • a disc comprising a series of filters arranged in a ring around an axis of rotation driven by a motor which makes it possible to position the filter of the desired color on the light beam emitted by a projector.
  • the choice of colors is limited in most cases to S or 6 filters.
  • Another drawback is that it is compulsory to go through the color or colors arranged between the successive filters chosen.
  • Another known device makes it possible to superimpose filters on the light beam, but it has the disadvantage of a significant loss of intensity.
  • a device comprising a set of filters and dichroic mirrors arranged on the light beam of three lamps mounted respectively one in the axis of the projector and the others radially with respect to this axis.
  • This device allows to instantly restore any desired color because it allows mixing.
  • it has the disadvantage of low light, due to the superimposition of filters and dichroic mirrors in the body of the device. Due to the high temperature reached by known devices, it is not possible to increase their intensity because the electronic parts do not withstand a temperature above 80 ° C.
  • an additional white lamp can be included, in front of which no filter is disposed.
  • the lighting device according to the invention is dimensioned to be placed inside a commercially available projector, so that it can easily be used to replace a conventional bulb in any known device, for example a pivoting stage spotlight fitted with a conventional motorized device.
  • Figure 1 is a block diagram of a projector equipped with a three-lamp device according to the invention, with its control console and a power supply.
  • FIG. 2 is a side view of a lighting device, seen partially in section, showing the arrangement of the main components in a variant with two times three white lamps provided with color filters.
  • Figure 3 is a top view of the filter attachment system, consisting of a protective plate and a spring disk.
  • Figures 4 to 8 are top views of the different stages arranged in the projector of Figure 2, seen on a greatly reduced scale.
  • Figure 4 shows the support piece of the device in the body of the projector.
  • Figure 5 is a view of the lamp positioning grid.
  • FIG. 6 represents the lower plate of the body of the device according to the invention.
  • Figure 7 shows the plate supporting the supply sockets, which is arranged inside the body of the device.
  • FIG. 8 represents the upper plate of the body, comprising on the one hand the power supply for the lamps and means for fixing a fan.
  • control desk 1 comprising three variators 2 allowing color dosages on scales of 0 to 100% intensity of each color. More precisely, the variators 2A, 2B and 2C correspond respectively to the colors A (for example green), B (red) and C (blue).
  • the commands are transferred, in a power variator 3 comprising at least three supply circuits 4A, 4B and 4C of the three lamps 5A, 5B and 5C of colors A, B and C respectively, arranged in a projector 6, provided so conventional means of guidance 7.
  • the lamps 5 are dichroic colored lamps: depending on the power supply arriving at each of these, the intensity and the color desired can be obtained at the output of the projector 6.
  • Figure 2 there is shown a preferred form of mounting of the device according to the invention, seen in profile, with partial section of the elements in the left part of the figure.
  • the device is generally cylindrical, so that it can be used in a conventional theater projector.
  • the main components of the device are an outer plate 10 for protecting a series of color filters A, B, C, held by a spring disc 20, the filters being arranged in the axis of lamps 30 from which they are separated by a plate 40 intended to hold the assembly inside a headlamp not shown.
  • a grid 50 holds in place the lamps 30 which pass through an external closure plate 60 of the main cylindrical body of the device according to the invention and are inserted into sockets fixed on a support plate 70.
  • the main body is closed at its end opposite by an inner closing plate 80.
  • the cylindrical body 90 contains the cooling fan 100 which is fixed by means of screws 110. Clamping means 120 ensure the fixing of the whole of the device which is supplied by a power outlet 130.
  • FIG. 3 there is shown in detail the outer protective plate 10 and - in half lower part of the drawing - the spring disc 20 for holding the color filters A, B, C, the latter being shown only in the right half of FIG. 3.
  • the plate 10 and the spring disc 20 each have a central opening 11 or 21 and six openings 12 or 22 equidistant from the center of the assembly, these openings being intended for the passage of light beams coming from the lamps 30.
  • Each disc 10 or 20 further comprises three passages 13 or 23 for the fixing means 120 of the 'together, as well as three openings 14 or 24 intended to receive the means for fixing the spring disc 20 to the outer plate 10.
  • the openings 12 are of a diameter smaller than the diameter of the color filters A, B or C.
  • the bands 25 and the tongues 26 are made elastic by virtue of the cutouts 28 and 29 extending these parts and make it possible to maintain the filters, as shown in the lower right part of FIG. 3.
  • the lamps 30 are visible in FIG. 2 where there is shown diagrammatically in section a faceted reflector 31, a bulb 32 and a base 33 for the passage of the contacts 34.
  • the plate 40 for fixing the assembly inside a conventional headlight casing is shown in detail in FIG. 4. It is a relatively thick plate comprising a central opening 41 surrounded by six openings 42 for the beams luminous and by three passages 43 for the fastening means 120.
  • the edge of the plate 40 further comprises a series of bosses 44 intended to bear on the internal wall of the headlight not shown.
  • the plate 40 will advantageously have a cutout 49 for locating its position relative to the body of the device, as will be seen below. Note that the plate is very cut, to allow maximum air circulation and avoid overheating of the assembly.
  • the support plate 70 of FIG. 7 has, inside the central opening 71 (for the evacuation of the heated air), a solid part 72 on which the white lamp supply socket is fixed. central. Plate 70 also has three passages 73 for the means of fixing the assembly and four openings 75 for its fixing to the internal closing plate 80.
  • the support 70 makes it possible to fix, for example by means of screws not shown, sockets 76 for supplying the lamps .
  • the inner closing plate 80 shown in FIG. 8, has a central opening 81, of generally square shape, intended to receive the cooling fan 100, fixed in the passages 85 provided for this purpose.
  • the closure plate 80 also has three passages 83 for the fixing means 120 and a clearance 82 for fixing the electrical outlet 130 supplying the assembly. It may also include means 87 for fixing a handle 88 visible in FIG. 2.
  • a cylindrical wall 90 is disposed between the outer 60 and inner 80 closing plates to form a closed enclosure for receiving the electrical components.
  • Each lamp is supplied, independently or by pair of lamps of the same color, by conductors 131, 132 for connection to the contactors of the multiple socket 130.
  • the clamping means 120 ensuring the fixing of the entire device consist of three columns intended to pass freely through the passages 63, 73, and 83. Each comprises a knurled inner part 121 and an external tapped part 122, projecting from the outside of the closing plate 60. These columns are held inside the cylindrical body in a known manner.
  • the other elements form a removable assembly from the line L.
  • This assembly is assembled by means of three screws 123 passing successively through passages 13 and 23, spacers 124, passages 43 of the plate 40, before being screwed into studs 125 outside of which the screws 123 project to cooperate with the tapped part 122 of the columns 120.
  • this assembly must necessarily be separated from the rest of the device in order to change the bulbs. If one or more filters have to be changed, it is necessary to unscrew the three knobs 121, remove the components located below the line L, unscrew the screws 123 assembling the protective plate 10 on the plate holding 40, then separate the protective plate 10 from the spring disc 20, by acting on the bolts 126 arranged in the openings 13 and 23 of these components.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Projection Apparatus (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Eye Examination Apparatus (AREA)

Abstract

The projection lamp includes a set of at least three different lamps (5A, 5B, 5C) supplied by three separate circuits (4A, 4B, 4C). These are controlled from a common control desk (2) by three switches (2A, 2B, 2C). The lamps may be dichroic lamps of different colours, or may be white lamps with different coloured filters attached. Each switch may be controlled over a range of 0-100%, so that any chosen combination of colour may be achieved. <IMAGE>

Description

La présente invention est du domaine de l'éclairage et concerne plus particulièrement un projecteur changeur de couleur, utilisé par exemple sur une scène de spectacles.The present invention is in the field of lighting and relates more particularly to a color-changing projector, used for example on a stage for shows.

On connaît depuis longtemps des dispositifs permettant des effets d'éclairage variable et utilisant des filtres colorés disposés dans un faisceau de lumière blanche. On a par exemple proposé d'utiliser un disque comportant une série de filtres disposés en couronne autour d'un axe de rotation entraîné par un moteur qui permet de positionner le filtre de la couleur désirée sur le faisceau lumineux émis par un projecteur. Le choix des couleurs est limité dans la plupart des cas à S ou 6 filtres. Un autre inconvénient est qu'il faut passer obligatoirement par la ou les couleurs disposées entre les filtres successifs choisis.Devices for variable lighting effects have been known for a long time and using color filters arranged in a beam of white light. For example, it has been proposed to use a disc comprising a series of filters arranged in a ring around an axis of rotation driven by a motor which makes it possible to position the filter of the desired color on the light beam emitted by a projector. The choice of colors is limited in most cases to S or 6 filters. Another drawback is that it is compulsory to go through the color or colors arranged between the successive filters chosen.

Un autre dispositif connu permet de superposer des filtres sur le faisceau lumineux, mais il a pour inconvénient une perte d'intensité importante.Another known device makes it possible to superimpose filters on the light beam, but it has the disadvantage of a significant loss of intensity.

On a développé plus récemment un système utilisant des gélatines de couleurs, de forme carrée, qui forment une bande dont chaque extrémité est fixée à un rouleau motorisé. En faisant défiler la bande, de gauche à droite ou inversement, on obtient la couleur voulue. On est donc obligé de passer par toutes les couleurs intermédiaires pour obtenir celle qui se trouve en fin de bande. Tous les dispositifs décrits jusqu'ici ont en outre pour inconvénient d'être plus ou moins bruyants en raison des mécanismes moteurs de défilement des couleurs.More recently, a system has been developed using colored gelatins, of square shape, which form a strip, each end of which is fixed to a motorized roller. By scrolling the strip, from left to right or vice versa, we obtain the desired color. So we have to go through all the intermediate colors to get the one at the end of the strip. All the devices described so far have the further disadvantage of being more or less noisy due to the motor mechanisms of color scrolling.

Finalement, on connaît un dispositif comportant un ensemble de filtres et de miroirs dichroïques disposés sur le faisceau lumineux de trois lampes montées respectivement l'une dans l'axe du projecteur et les autres radialement par rapport à cet axe. Cet appareil permet de restituer instantanément n'importe quelle couleur désirée car il permet des mélanges. Il a toutefois pour inconvénient une faible luminosité, en raison de la superposition des filtres et des miroirs dichroïques dans le corps même de l'appareil. En raison de la température élevée qu'atteignent les dispositifs connus, il n'est pas possible d'augmenter leur intensité car les parties électroniques ne supportent pas une température au-dessus de 80°C.Finally, a device is known comprising a set of filters and dichroic mirrors arranged on the light beam of three lamps mounted respectively one in the axis of the projector and the others radially with respect to this axis. This device allows to instantly restore any desired color because it allows mixing. However, it has the disadvantage of low light, due to the superimposition of filters and dichroic mirrors in the body of the device. Due to the high temperature reached by known devices, it is not possible to increase their intensity because the electronic parts do not withstand a temperature above 80 ° C.

La présente invention vise à pallier les inconvénients cités plus haut. Elle a pour objet un projecteur changeur de couleur, caractérisé en ce qu'il comporte au moins :

  • une série de trois lampes (dichroïques), dont les faisceaux lumineux sont sensiblement parallèles,
  • trois circuits d'alimentation desdites lampes,
  • trois dispositifs de commande desdits circuits d'alimentation.
The present invention aims to overcome the drawbacks mentioned above. Its purpose is a color-changing projector, characterized in that it comprises at least:
  • a series of three (dichroic) lamps, the light beams of which are substantially parallel,
  • three supply circuits for said lamps,
  • three devices for controlling said supply circuits.

Au lieu d'utiliser des lampes de couleurs différentes, on peut associer à une série de trois lampes blanches une série de trois filtres de couleurs.Instead of using lamps of different colors, you can combine a series of three white lamps with a series of three color filters.

Sans sortir du cadre de la présente invention, on peut inclure une lampe blanche supplémentaire, devant laquelle aucun filtre n'est disposé.Without departing from the scope of the present invention, an additional white lamp can be included, in front of which no filter is disposed.

Dans la forme d'exécution préférentielle qui sera décrite en détail plus loin, on dispose deux jeux de trois filtres devant les six lampes correspondantes. On pourra avantageusement choisir deux jeux de filtres de couleur bleu, vert et rouge dont l'un des jeux est plus foncé que l'autre, ou deux jeux de trois couleurs identiques.In the preferred embodiment which will be described in detail below, there are two sets of three filters in front of the six corresponding lamps. We can advantageously choose two sets of filters color blue, green and red, one of the sets is darker than the other, or two sets of three identical colors.

Il est en outre à noter que le dispositif d'éclairage selon l'invention est dimensionné pour être disposé à l'intérieur d'un projecteur du commerce, de telle sorte qu'il peut aisément être utilisé en remplacement d'une ampoule conventionnelle dans tout dispositif connu, par exemple un projecteur de scène pivotant équipé d'un dispositif motorisé conventionnel.It should also be noted that the lighting device according to the invention is dimensioned to be placed inside a commercially available projector, so that it can easily be used to replace a conventional bulb in any known device, for example a pivoting stage spotlight fitted with a conventional motorized device.

Le dessin annexé représente à titre d'exemple non limitatif une forme d'exécution de l'objet de la présente l'invention.The accompanying drawing shows by way of nonlimiting example an embodiment of the object of the present invention.

La figure 1 est un schéma de principe d'un projecteur équipé d'un dispositif à trois lampes selon l'invention, avec son pupitre de commande et un boîtier d'alimentation.Figure 1 is a block diagram of a projector equipped with a three-lamp device according to the invention, with its control console and a power supply.

La figure 2 est une vue latérale d'un dispositif d'éclairage, vu partiellement en coupe, montrant la disposition des composants principaux dans une variante à deux fois trois lampes blanches munies de filtres de couleur.FIG. 2 is a side view of a lighting device, seen partially in section, showing the arrangement of the main components in a variant with two times three white lamps provided with color filters.

La figure 3 est une vue de dessus du système de fixation des filtres, composé d'une plaque de protection et d'un disque faisant ressort.Figure 3 is a top view of the filter attachment system, consisting of a protective plate and a spring disk.

Les figures 4 à 8 sont des vues de dessus des différents étages disposés dans le projecteur de la figure 2, vus à une échelle fortement réduite.Figures 4 to 8 are top views of the different stages arranged in the projector of Figure 2, seen on a greatly reduced scale.

Plus précisément la figure 4 représente la pièce de soutien du dispositif dans le corps du projecteur.More specifically Figure 4 shows the support piece of the device in the body of the projector.

La figure 5 est une vue de la grille de positionnement des lampes.Figure 5 is a view of the lamp positioning grid.

La figure 6 représente la plaque inférieure du corps du dispositif selon l'invention.FIG. 6 represents the lower plate of the body of the device according to the invention.

La figure 7 montre la plaque supportant les douilles d'alimentation, qui est disposée à l'intérieur du corps même de l'appareil.Figure 7 shows the plate supporting the supply sockets, which is arranged inside the body of the device.

La figure 8 représente la plaque supérieure du corps, comportant d'une part la prise d'alimentation des lampes et des moyens de fixation d'un ventilateur.FIG. 8 represents the upper plate of the body, comprising on the one hand the power supply for the lamps and means for fixing a fan.

Dans le schéma de principe donné à la figure 1, on a représenté un pupitre de commande 1 comportant trois variateurs 2 permettant des dosages de couleurs sur des échelles de 0 à 100% d'intensité de chaque couleur. Plus précisément les variateurs 2A, 2B et 2C correspondent respectivement aux couleurs A (par exemple vert), B (rouge) et C (bleu).In the block diagram given in Figure 1, there is shown a control desk 1 comprising three variators 2 allowing color dosages on scales of 0 to 100% intensity of each color. More precisely, the variators 2A, 2B and 2C correspond respectively to the colors A (for example green), B (red) and C (blue).

Les commandes sont transférées, dans un variateur de puissance 3 comportant au moins trois circuits d'alimentation 4A, 4B et 4C des trois lampes 5A, 5B et 5C de couleurs A, B et C respectivement, disposées dans un projecteur 6, muni de manière conventionnelle de moyens d'orientation 7.The commands are transferred, in a power variator 3 comprising at least three supply circuits 4A, 4B and 4C of the three lamps 5A, 5B and 5C of colors A, B and C respectively, arranged in a projector 6, provided so conventional means of guidance 7.

Les lampes 5 sont des lampes dichroïques de couleur : selon la puissance d'alimentation arrivant à chacune de celles-ci, on peut obtenir l'intensité et la couleur désirées à la sortie du projecteur 6.The lamps 5 are dichroic colored lamps: depending on the power supply arriving at each of these, the intensity and the color desired can be obtained at the output of the projector 6.

Dans le schéma de principe de la figure 1 on a schématisé un pupitre de commande classique, mais il est bien sûr possible d'effectuer toutes ces commandes par ordinateur, et de mémoriser des cycles successifs ou des séquences prédéterminées, de manière connue de l'homme du métier, pour varier les couleurs en fonction d'une séquence préétablie.In the block diagram of FIG. 1, a conventional control panel has been diagrammed, but it is of course possible to carry out all of these commands by computer, and to store successive cycles or predetermined sequences, in a manner known from skilled in the art, to vary the colors according to a predetermined sequence.

A la figure 2 on a représenté une forme préférentielle de montage du dispositif selon l'invention, vue de profil, avec coupe partielle des éléments dans la partie gauche de la figure. Le dispositif est de forme générale cylindrique, de manière à pouvoir être utilisé dans un projecteur de théâtre conventionnel.In Figure 2 there is shown a preferred form of mounting of the device according to the invention, seen in profile, with partial section of the elements in the left part of the figure. The device is generally cylindrical, so that it can be used in a conventional theater projector.

Cette forme d'exécution diffère du schéma proposé plus haut en ce que :

  • on utilise deux groupes de trois ampoules,
  • les lampes sont blanches et sont associées à des filtres dichroïques de couleur A, B et C respectivement,
  • on ajoute une lampe blanche, dont le faisceau lumineux n'est pas filtré.
This embodiment differs from the scheme proposed above in that:
  • we use two groups of three bulbs,
  • the lamps are white and are associated with dichroic filters of color A, B and C respectively,
  • a white lamp is added, the light beam of which is not filtered.

Les composants principaux du dispositif sont une plaque extérieure 10 de protection d'une série de filtres de couleur A, B, C, maintenus par un disque ressort 20, les filtres étant disposés dans l'axe de lampes 30 dont ils sont séparés par une plaque 40 destinée à maintenir l'ensemble à l'intérieur d'un projecteur non représenté. Une grille 50 maintient en place les lampes 30 qui traversent une plaque de fermeture extérieure 60 du corps cylindrique principal du dispositif selon l'invention et s'insèrent dans des douilles fixées sur une plaque de support 70. Le corps principal est fermé à son extrémité opposée par une plaque de fermeture intérieure 80. Le corps cylindrique 90 renferme le ventilateur 100 de refroidissement qui est fixé au moyen de vis 110. Des moyens de serrage 120 assurent la fixation de l'ensemble du dispositif qui est alimenté par une prise de courant 130.The main components of the device are an outer plate 10 for protecting a series of color filters A, B, C, held by a spring disc 20, the filters being arranged in the axis of lamps 30 from which they are separated by a plate 40 intended to hold the assembly inside a headlamp not shown. A grid 50 holds in place the lamps 30 which pass through an external closure plate 60 of the main cylindrical body of the device according to the invention and are inserted into sockets fixed on a support plate 70. The main body is closed at its end opposite by an inner closing plate 80. The cylindrical body 90 contains the cooling fan 100 which is fixed by means of screws 110. Clamping means 120 ensure the fixing of the whole of the device which is supplied by a power outlet 130.

A la figure 3, on a représenté en détail la plaque extérieure 10 de protection et - dans la moitié inférieure du dessin - le disque ressort 20 de maintien des filtres de couleurs A, B, C, ces derniers étant représentés uniquement dans la moitié droite de la figure 3. La plaque 10 et le disque ressort 20 comportent chacun respectivement une ouverture centrale 11 ou 21 et six ouvertures 12 ou 22 équidistantes du centre de l'ensemble, ces ouvertures étant destinées au passage des faisceaux lumineux issus des lampes 30. Chaque disque 10 ou 20 comporte en outre trois passages 13 ou 23 pour les moyens de fixation 120 de l'ensemble, ainsi que trois ouvertures 14 ou 24 destinées à recevoir les moyens de fixation du disque ressort 20 sur la plaque extérieure 10.In Figure 3, there is shown in detail the outer protective plate 10 and - in half lower part of the drawing - the spring disc 20 for holding the color filters A, B, C, the latter being shown only in the right half of FIG. 3. The plate 10 and the spring disc 20 each have a central opening 11 or 21 and six openings 12 or 22 equidistant from the center of the assembly, these openings being intended for the passage of light beams coming from the lamps 30. Each disc 10 or 20 further comprises three passages 13 or 23 for the fixing means 120 of the 'together, as well as three openings 14 or 24 intended to receive the means for fixing the spring disc 20 to the outer plate 10.

Il va de soi que les ouvertures 12 sont d'un diamètre inférieur au diamètre des filtres de couleur A, B ou C. On notera à la figure 3 la forme particulière des six ouvertures 22 bordées par une bande radiale 25 et une languette extérieure 26 qui sont reliées par une partie circulaire 27 de dimension correspondant sensiblement à celle des filtres. Les bandes 25 et les languettes 26 sont rendues élastiques grâce aux découpures 28 et 29 prolongeant ces parties et permettent de maintenir les filtres, comme représenté dans la partie inférieure droite de la figure 3.It goes without saying that the openings 12 are of a diameter smaller than the diameter of the color filters A, B or C. Note in FIG. 3 the particular shape of the six openings 22 bordered by a radial strip 25 and an external tongue 26 which are connected by a circular part 27 of dimension corresponding substantially to that of the filters. The bands 25 and the tongues 26 are made elastic by virtue of the cutouts 28 and 29 extending these parts and make it possible to maintain the filters, as shown in the lower right part of FIG. 3.

Les lampes 30 sont visibles à la figure 2 où l'on a schématisé en coupe un réflecteur 31 à facettes, une ampoule 32 et un culot 33 pour le passage des contacts 34.The lamps 30 are visible in FIG. 2 where there is shown diagrammatically in section a faceted reflector 31, a bulb 32 and a base 33 for the passage of the contacts 34.

La plaque 40 de fixation de l'ensemble à l'intérieur d'une enveloppe de projecteur conventionnelle est représentée en détail à la figure 4. Il s'agit d'une plaque relativement épaisse comportant une ouverture centrale 41 entourée par six ouvertures 42 pour les faisceaux lumineux et par trois passages 43 pour les moyens de fixation 120. Le bord de la plaque 40 comporte en outre une série de bossages 44 destinés à s'appuyer sur la paroi interne du projecteur non représenté. La plaque 40 présentera avantageusement une découpe 49 de repérage de sa position par rapport au corps de l'appareil, comme on le verra plus loin. On notera que la plaque est très découpée, pour permettre une circulation d'air maximale et éviter une surchauffe de l'ensemble.The plate 40 for fixing the assembly inside a conventional headlight casing is shown in detail in FIG. 4. It is a relatively thick plate comprising a central opening 41 surrounded by six openings 42 for the beams luminous and by three passages 43 for the fastening means 120. The edge of the plate 40 further comprises a series of bosses 44 intended to bear on the internal wall of the headlight not shown. The plate 40 will advantageously have a cutout 49 for locating its position relative to the body of the device, as will be seen below. Note that the plate is very cut, to allow maximum air circulation and avoid overheating of the assembly.

La grille 50 de maintien des lampes et la plaque de fermeture 60 des figures 5 et 6 comportent toutes deux une ouverture centrale 51, 61, six ouvertures 52, 62 pour le passage des lampes 30, trois passages 53, 63 pour les moyens 120 de fixation de l'ensemble et trois passages 54, 64 pour la fixation élastique de la grille 50 par rapport à la plaque de fermeture 60, comme on le verra plus loin. On notera que l'ouverture centrale 61 est d'un diamètre important pour permettre une meilleure évacuation de l'air chauffé dans l'enceinte cylindrique 90. En outre, elle peut présenter des trous d'aération supplémentaires, non représentés au dessin. Dans la forme d'exécution proposée, la plaque de fermeture 60 comporte encore quatre passages 65 permettant le serrage du corps cylindrique 90 sur la plaque intérieure 80. On notera que les ouvertures 52 et 62 pour le passage des lampes sont respectivement :

  • rondes, d'un diamètre correspondant au réflecteur 31
  • ovales, d'une dimension correspondant au culot 33.
The grid 50 for holding the lamps and the closing plate 60 of Figures 5 and 6 both have a central opening 51, 61, six openings 52, 62 for the passage of the lamps 30, three passages 53, 63 for the means 120 fixing the assembly and three passages 54, 64 for the elastic fixing of the grid 50 relative to the closure plate 60, as will be seen below. It will be noted that the central opening 61 is of a large diameter to allow better evacuation of the heated air in the cylindrical enclosure 90. In addition, it may have additional ventilation holes, not shown in the drawing. In the proposed embodiment, the closure plate 60 also has four passages 65 allowing the cylindrical body 90 to be clamped on the interior plate 80. It will be noted that the openings 52 and 62 for the passage of the lamps are respectively:
  • round, with a diameter corresponding to reflector 31
  • oval, of a size corresponding to base 33.

La plaque de support 70 de la figure 7 comporte, à l'intérieur de l'ouverture centrale 71 (pour l'évacuation de l'air chauffé), une partie pleine 72 sur laquelle est fixée la douille d'alimentation de la lampe blanche centrale. La plaque 70 présente également trois passages 73 pour les moyens de fixation de l'ensemble et quatre ouvertures 75 pour sa fixation à la plaque de fermeture intérieure 80. Le support 70 permet de fixer, par exemple au moyen de vis non représentées, des douilles 76 d'alimentation des lampes.The support plate 70 of FIG. 7 has, inside the central opening 71 (for the evacuation of the heated air), a solid part 72 on which the white lamp supply socket is fixed. central. Plate 70 also has three passages 73 for the means of fixing the assembly and four openings 75 for its fixing to the internal closing plate 80. The support 70 makes it possible to fix, for example by means of screws not shown, sockets 76 for supplying the lamps .

La plaque de fermeture intérieure 80, représentée à la figure 8, comporte un ouverture centrale 81, de forme générale carrée, destinée à recevoir le ventilateur 100 de refroidissement, fixé dans les passages 85 prévus à cet effet. La plaque de fermeture 80 comporte encore trois passages 83 pour les moyens 120 de fixation et un dégagement 82 pour la fixation de la prise électrique 130 d'alimentation de l'ensemble. Elle peut en outre comporter des moyens 87 de fixation d'une poignée 88 visible à la fig.2.The inner closing plate 80, shown in FIG. 8, has a central opening 81, of generally square shape, intended to receive the cooling fan 100, fixed in the passages 85 provided for this purpose. The closure plate 80 also has three passages 83 for the fixing means 120 and a clearance 82 for fixing the electrical outlet 130 supplying the assembly. It may also include means 87 for fixing a handle 88 visible in FIG. 2.

Comme déjà mentionné, une paroi cylindrique 90 est disposée entre les plaques de fermeture extérieure 60 et intérieure 80 pour former une enceinte fermée de réception des constituants électriques. Chaque lampe est alimentée, indépendamment ou par paire de lampes d'une même couleur, par des conducteurs 131, 132 de liaison aux contacteurs de la prise multiple 130.As already mentioned, a cylindrical wall 90 is disposed between the outer 60 and inner 80 closing plates to form a closed enclosure for receiving the electrical components. Each lamp is supplied, independently or by pair of lamps of the same color, by conductors 131, 132 for connection to the contactors of the multiple socket 130.

Le ventilateur 100 est serré, sur la plaque de fermeture intérieure 80, au moyen de moyens de fixation 110. Plus précisément, en se référant à la partie ouverte de la figure 2, on peut décrire cette fixation 110 par :

  • quatre écrous 111 de fixation du ventilateur 100 dans les passages correspondants 85 de la plaque 80,
  • quatre colonnes 112 de liaison au support 70, plus précisément grâce aux ouvertures 75,
  • quatre vis 113 de fixation de la plaque de fermeture 60, traversant les ouvertures 65 de celle-ci.
The fan 100 is tightened, on the inner closing plate 80, by means of fixing means 110. More precisely, with reference to the open part of FIG. 2, this fixing 110 can be described by:
  • four nuts 111 for fixing the fan 100 in the corresponding passages 85 of the plate 80,
  • four columns 112 for connection to the support 70, more precisely thanks to the openings 75,
  • four screws 113 for fixing the closure plate 60, passing through the openings 65 thereof.

Ces différents composants sont montés dans l'enceinte cylindrique, comme représenté à la figure 2. Avant d'insérer les lampes 30, on montera la grille 50 destinée à les maintenir de manière élastique. A cet effet, on dispose trois ressorts 115 entre les butées extérieures 116 de trois colonnes 117 fixées de manière conventionnelle dans les ouvertures 64 de la plaque de fermeture 60. Après avoir monté ainsi la grille 50, on peut fixer les lampes 30.These various components are mounted in the cylindrical enclosure, as shown in FIG. 2. Before inserting the lamps 30, the grid 50 intended to hold them resiliently will be mounted. For this purpose, there are three springs 115 between the external stops 116 of three columns 117 fixed in a conventional manner in the openings 64 of the closure plate 60. After having thus mounted the grid 50, the lamps 30 can be fixed.

On peut prévoir de remplacer l'une des colonnes 117 par une colonne plus longue destinée à traverser la découpe 49 de la plaque 40, ce qui permet de positionner les filtres de couleur A, B et C en face des lampes correspondantes. Bien que cela ne soit pas représenté au dessin, cette colonne plus longue peut également traverser des passages pratiqués dans la plaque de protection 10 et le disque ressort 20.One can plan to replace one of the columns 117 by a longer column intended to pass through the cutout 49 of the plate 40, which makes it possible to position the color filters A, B and C in front of the corresponding lamps. Although this is not shown in the drawing, this longer column can also pass through passages made in the protective plate 10 and the spring disc 20.

Les moyens de serrage 120 assurant la fixation de l'ensemble du dispositif sont constitués par trois colonnes destinées à traverser librement les passages 63, 73, et 83. Chacune comporte une partie intérieure moletée 121 et une partie extérieure 122 taraudée, faisant saillie à l'extérieur de la plaque de fermeture 60. Ces colonnes sont maintenues à l'intérieur du corps cylindrique de manière connue.The clamping means 120 ensuring the fixing of the entire device consist of three columns intended to pass freely through the passages 63, 73, and 83. Each comprises a knurled inner part 121 and an external tapped part 122, projecting from the outside of the closing plate 60. These columns are held inside the cylindrical body in a known manner.

Alors que les lampes 30 et la grille 50 restent fixées sur le corps cylindrique du dispositif, les autres éléments (plaque de protection 10 des filtres, disque ressort 20 et plaque de maintien 40) forment en ensemble amovible à partir de la ligne L. Cet ensemble est assemblé au moyen de trois vis 123 traversant successivement les passages 13 et 23, des entretoises 124, les passages 43 de la plaque 40, avant d'être vissées dans des plots 125 à l'extérieur desquels les vis 123 font saillie pour coopérer avec la partie taraudée 122 des colonnes 120.While the lamps 30 and the grid 50 remain fixed on the cylindrical body of the device, the other elements (protective plate 10 of the filters, spring disk 20 and retaining plate 40) form a removable assembly from the line L. This assembly is assembled by means of three screws 123 passing successively through passages 13 and 23, spacers 124, passages 43 of the plate 40, before being screwed into studs 125 outside of which the screws 123 project to cooperate with the tapped part 122 of the columns 120.

Dans la forme d'exécution représentée au dessin, on doit nécessairement séparer cet ensemble du reste de l'appareil pour procéder au changement des ampoules. Si l'on doit changer un ou plusieurs filtres, il est nécessaire de dévisser les trois molettes 121, de retirer les composants situés en deçà de la ligne L, de dévisser les vis 123 d'assemblage de la plaque de protection 10 sur la plaque de maintien 40, puis de séparer la plaque de protection 10 du disque ressort 20, en agissant sur les boulons 126 disposés dans les ouvertures 13 et 23 de ces composants.In the embodiment shown in the drawing, this assembly must necessarily be separated from the rest of the device in order to change the bulbs. If one or more filters have to be changed, it is necessary to unscrew the three knobs 121, remove the components located below the line L, unscrew the screws 123 assembling the protective plate 10 on the plate holding 40, then separate the protective plate 10 from the spring disc 20, by acting on the bolts 126 arranged in the openings 13 and 23 of these components.

En raison des températures élevées atteintes lors d'utilisations prolongées, en particulier lorsque le dispositif selon l'invention est introduit dans le corps d'un projecteur conventionnel, on utilisera avantageusement des composants métalliques. En outre il sera utile de protéger le ventilateur par des matières évitant la conduction de la chaleur.Due to the high temperatures reached during prolonged use, in particular when the device according to the invention is introduced into the body of a conventional headlamp, metallic components will advantageously be used. In addition, it will be useful to protect the fan with materials which prevent heat conduction.

La description qui vient d'être faite de la forme d'exécution représentée au dessin n'est pas limitative et des variantes de montage viendront aisément à l'esprit de l'homme de métier désireux de mettre en pratique l'objet de l'invention. A titre d'exemple, au lieu du dispositif décrit qui est dimensionné pour être inséré dans une carcasse de projecteur conventionnel, on peut construire un appareil directement dans un boîtier indépendant.The description which has just been made of the embodiment shown in the drawing is not limiting and mounting variants will easily come to mind of those skilled in the art wishing to put the object of the practice into practice. invention. By way of example, instead of the device described which is dimensioned to be inserted into a conventional headlight casing, an apparatus can be built directly in an independent housing.

Claims (11)

Projecteur changeur de couleur, caractérisé en ce qu'il comporte au moins : - une série de trois lampes (5, 30), dont les faisceaux lumineux sont sensiblement parallèles, - trois circuits (4A, 4B, 4C) d'alimentation desdites lampes, - trois dispositifs de commande (2A, 2B, 2C) desdits circuits d'alimentation. Color-changing projector, characterized in that it comprises at least: - a series of three lamps (5, 30), the light beams of which are substantially parallel, - three circuits (4A, 4B, 4C) for supplying said lamps, - three control devices (2A, 2B, 2C) of said supply circuits. Projecteur selon la revendication 1, caractérisé en ce qu'il comporte en outre au moins une série de trois filtres de couleurs (A, B, C) disposés devant des lampes blanches.Projector according to claim 1, characterized in that it further comprises at least one series of three color filters (A, B, C) arranged in front of white lamps. Projecteur selon la revendication 1 ou 2, caractérisé en ce qu'il comporte en outre une lampe blanche supplémentaire, avec circuit d'alimentation et dispositif de commande indépendants.Projector according to claim 1 or 2, characterized in that it further comprises an additional white lamp, with independent supply circuit and control device. Projecteur selon la revendication 2, caractérisé en ce qu'il comporte deux jeux de trois filtres de couleurs bleue, verte et rouge dont l'un des jeux est plus foncé que l'autre.Projector according to claim 2, characterized in that it comprises two sets of three filters of blue, green and red colors, one of the sets is darker than the other. Projecteur selon l'une des revendications 1 à 4, caractérisé en ce qu'il comporte un corps cylindrique (90) fermé par deux plaques (60, 80) constituant une enceinte destinée à renfermer un ventilateur (100) de refroidissement et des composants électriques de liaison à une prise de courant (130) reliée aux dits circuits d'alimentation.Projector according to one of claims 1 to 4, characterized in that it comprises a cylindrical body (90) closed by two plates (60, 80) constituting an enclosure intended to contain a cooling fan (100) and electrical components connecting to a socket (130) connected to said supply circuits. Projecteur selon la revendication 5, caractérisé en ce que ladite enceinte (60, 80, 90) renferme une plaque (70) de support des douilles (76) d'alimentation des lampes (30).Projector according to claim 5, characterized in that the said enclosure (60, 80, 90) contains a plate (70) for supporting the lampholders (76) supplying the lamps (30). Projecteur selon la revendications 1, caractérisé par une plaque support (40) munie de bossages (44) destinés à s'appuyer sur la paroi interne de la carcasse d'un projecteur.Projector according to claim 1, characterized by a support plate (40) provided with bosses (44) intended to bear on the internal wall of the carcass of a projector. Projecteur selon la revendication 1, caractérisé par une grille (50) de maintien élastique des réflecteurs (31) desdites lampes (30).Projector according to claim 1, characterized by a grid (50) for elastic retention of the reflectors (31) of said lamps (30). Projecteur selon la revendication 2, caractérisé par une plaque (10) et un disque ressort (20) entre lesquels les filtres de couleur (A, B, C) sont serrés élastiquement.Projector according to claim 2, characterized by a plate (10) and a spring disc (20) between which the color filters (A, B, C) are resiliently clamped. Projecteur selon les revendications 5 à 9, caractérisé en ce que les plages (10, 20, 40, 50, 60, 70, 80) comportent des passages (13, 23, 43, 53, 73, 73, 83) pour les moyens de serrage (120) assurant la fixation de l'ensemble.Projector according to Claims 5 to 9, characterized in that the areas (10, 20, 40, 50, 60, 70, 80) have passages (13, 23, 43, 53, 73, 73, 83) for the means clamp (120) ensuring the attachment of the assembly. Projecteur selon les revendications 5 à 9, caractérisé en ce que les plaques (10, 20, 40, 50, 60) comportent des ouvertures (11, 21, 41, 51, 61; 12, 22, 42, 52, 62) pour le passages les lampes (30) et de leurs faisceaux lumineux.Projector according to Claims 5 to 9, characterized in that the plates (10, 20, 40, 50, 60) have openings (11, 21, 41, 51, 61; 12, 22, 42, 52, 62) for the passage the lamps (30) and their light beams.
EP95810321A 1994-05-24 1995-05-15 Variable colour projector Expired - Lifetime EP0684421B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH01595/94A CH687890C1 (en) 1994-05-24 1994-05-24 COLOR CHANGER PROJECTOR
CH159594 1994-05-24
CH1595/94 1994-05-24

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EP0684421A1 true EP0684421A1 (en) 1995-11-29
EP0684421B1 EP0684421B1 (en) 1999-09-22

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EP95810321A Expired - Lifetime EP0684421B1 (en) 1994-05-24 1995-05-15 Variable colour projector

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US (1) US5597231A (en)
EP (1) EP0684421B1 (en)
AT (1) ATE184974T1 (en)
CA (1) CA2149280C (en)
CH (1) CH687890C1 (en)
DE (1) DE69512314T2 (en)
ES (1) ES2139170T3 (en)
TW (1) TW369116U (en)

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EP0866263A3 (en) * 1997-03-20 1999-03-31 CLAY PAKY S.p.A. Light-beam projecting device
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US6595669B2 (en) 1998-11-02 2003-07-22 Code 3, Inc. Vehicular warning light having less apparent color when not energized
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EP0790457A2 (en) * 1996-02-14 1997-08-20 ARTEMIDE S.p.A. Polychrome lighting device, particularly for the decorative lighting of rooms and the like
EP0790457A3 (en) * 1996-02-14 1997-12-17 ARTEMIDE S.p.A. Polychrome lighting device, particularly for the decorative lighting of rooms and the like
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EP0866263A3 (en) * 1997-03-20 1999-03-31 CLAY PAKY S.p.A. Light-beam projecting device
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WO1999030077A1 (en) * 1997-12-10 1999-06-17 Charlton & Jenrick Limited Ornamental display unit
GB2346958A (en) * 1997-12-10 2000-08-23 Charlton & Jenrick Ltd Ornamental display unit
WO1999066257A1 (en) * 1998-06-17 1999-12-23 Isometrix Lighting & Design Limited Colour wash light
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Also Published As

Publication number Publication date
US5597231A (en) 1997-01-28
CA2149280C (en) 2006-07-25
CA2149280A1 (en) 1995-11-25
TW369116U (en) 1999-09-01
DE69512314D1 (en) 1999-10-28
ES2139170T3 (en) 2000-02-01
DE69512314T2 (en) 2000-07-20
CH687890A5 (en) 1997-03-14
CH687890C1 (en) 2001-05-31
ATE184974T1 (en) 1999-10-15
EP0684421B1 (en) 1999-09-22

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