EP0072303A1 - Projector with coloured screens on discs - Google Patents

Projector with coloured screens on discs Download PDF

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Publication number
EP0072303A1
EP0072303A1 EP82401433A EP82401433A EP0072303A1 EP 0072303 A1 EP0072303 A1 EP 0072303A1 EP 82401433 A EP82401433 A EP 82401433A EP 82401433 A EP82401433 A EP 82401433A EP 0072303 A1 EP0072303 A1 EP 0072303A1
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EP
European Patent Office
Prior art keywords
disc
motor
color
common
projector according
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EP82401433A
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German (de)
French (fr)
Inventor
Didier Jean-Pierre Leclercq
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Sarl CAMELEON
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Sarl CAMELEON
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Publication of EP0072303A1 publication Critical patent/EP0072303A1/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
    • F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
    • F21V9/40—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters with provision for controlling spectral properties, e.g. colour, or intensity
    • 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 relates to a projector with colored screens selectively interposed on the light beam of a light source and mounted on at least one rotating disc driven by a motor device.
  • each projector In order not to prohibitively multiply the number of projectors used, each projector must be able to selectively project several colors, including in general the color white. On the other hand, it is requested by users that the transition between two colors is done without letting appear "white” (or any other color deemed undesirable).
  • the object of the invention is to overcome the drawbacks encountered so far by proposing a projector of the type already mentioned, silent, and allowing a change of colors without intermediate "white".
  • each disc comprises exclusively three colored sectors, one color of which is common to all the discs, and that the drive device of each disc is associated with a control device so as to make turn the disc by an increment corresponding to the passage of the colored sector crossed by the light beam to the new colored sector chosen to be crossed by the light beam by the angular path the shorter, whereby the transition from a color different from the common color to another color, different from the common color, is done without going through the common color.
  • the number of discs of the projector depends on the number of colors desired for the projector.
  • the presence of a disc allows the projection of two colors in addition to white
  • the presence of two discs allows the projection of four pure colors, in addition to white plus four colors of combinations
  • n discs allow the projection of 2n pure colors in addition to white, without counting the 2 n colors of combinations.
  • each disc comprises three sectors and only three, and that the discs can rotate in one direction or the other so that the change of the sector interposed in the light beam to another sector , necessarily neighboring by construction, is done by the shortest path, one is sure to be able to pass from one color to another without going through the white color occupying one of the three sectors.
  • the invention resides in the fact that only three colors, including white, have been placed on each disc, generally in a regular manner (that is to say on three sectors of 120 °) although that it is not an obligation, and that, moreover, the rotation of the disc for the change of colors is done in increments of 120 ° (if the arrangement is regular) positively or negatively to reach the new color.
  • the drive motor of the disc and its associated control device consist of three electromagnetic coils distributed around a central core integral with the axis of the disc, the supply of these coils being done selectively using a keyboard.
  • the shorter angular path is always taken, inherently in the very design of the system.
  • the disk drive device can comprise a stepping motor and a peripheral drive roller for the disk, or else a motor coupled directly or indirectly to the axis of the disk.
  • the first solution is less bulky when the projector has several successive discs.
  • the control of the rotation (and / or the position) of the disc acting through suitable electronics on the control in one direction or the other of the motor, can be done by optical reading, by clock, by potentiometer or other.
  • FIG. 1 shows a disc 1 comprising three sectors 2, 3, 4 regularly distributed and entirely or partially occupied by colored screens 5, 6, 7 one of which, for example 5, is white in color (deemed undesirable for transitions).
  • a light beam not shown, crosses one of the three sectors.
  • the disc 1 can rotate freely on its axis 8.
  • Three electromagnetic coils 9, 10, 11 are arranged fixed around the axis 8, distributed at 120 °. These coils are connected, on the one hand to earth O and, on the other hand, to a common supply A through three conductors 12, 13, 14 interrupted by switches 15, 16, 17. These switches are controlled from conventionally by a selective keyboard, the closing of a switch automatically unlocking the previously closed switch.
  • the disc 1 pivots about its axis 8 under the action of a peripheral roller 18 driven by a motor 19.
  • the control of this motor 19 in one direction or the other is done through conventional electronics 20 in response to manual or programmed positioning instructions on the one hand, and to the result of a digital count indicating the position, carried out by means of a photoelectric cell 21 detecting the passage of a light beam in holes 22 distributed over the entire periphery 23 of the disc 1.
  • a clock 24 replaces the optical control for controlling the motor 19.
  • the axis 8 of the disc 1 is coupled on the one hand to the motor 19 supported by a chassis 25, and, on the other hand, to a feedback potentiometer 26, also supported by the chassis 25, whose disc position indications are transmitted to the electronics 20 for controlling the motor 19.
  • FIG. 5 shows several disks 1a, 1b and 1c mounted on axes 8a, 8b, 8c, aligned on the right 27 and coupled to feedback potentiometers 26a, 26b, 26c for the control of their rotation.
  • the potentiometers are supported by supports 27a, 27b, 27c which also carry the motors 19 with rollers 18.
  • a light beam 28 successively crosses the three discs la, Ib, lc, and the selective interposition of the colored filters allows obtaining, in addition to the white color that carries a filter of each disc, six pure colors and eight combination colors.
  • the projector of the invention is a compact projector, silent thanks to its design and that it avoids unwanted whites when switching from one color to another.
  • each motor requires a positive wire and a negative wire, a common neutral wire being able to be provided for all the discs.
  • the cabling of a device according to the invention comprises only seven wires (for the embodiment of FIG. 5), while that of a conventional device with six controlled filters by cylinders requires more.

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  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Projection Apparatus (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

In this projector with coloured screens which are interposed selectively on the light beam from a light source and are mounted on at least one rotary disc moved by a drive device, each disc (1) comprises exclusively three coloured sectors (2, 3, 4), in which one colour (generally white) is common to all the discs; the drive device of each disc is associated with a control device so as to rotate the disc by an increment corresponding to the passage of the coloured sector traversed by the light beam to the new coloured sector selected to be traversed by the light beam, through the shortest angular path, by virtue of which the passage from one common different colour to another colour, different from the common colour, takes place without going via the common colour. <IMAGE>

Description

La présente invention concerne un projecteur à écrans colorés interposés sélectivement sur le faisceau lumineux d'une source lumineuse et montés sur au moins un disque rotatif mû par un dispositif moteur.The present invention relates to a projector with colored screens selectively interposed on the light beam of a light source and mounted on at least one rotating disc driven by a motor device.

On connaît dans le domaine de l'éclairage de scène ou analogue, différents types de projecteurs à écrans colorés interposés.Various types of projectors with interposed colored screens are known in the field of stage lighting or the like.

Pour ne pas multiplier de façon prohibitive le nombre de projecteurs utilisés, chaque projecteur doit pouvoir projeter sélectivement plusieurs couleurs, dont en général la couleur blanche. D'autre part, il est demandé par les utilisateurs que le passage entre deux couleurs se fasse sans laisser apparaître de "blanc" (ou tout autre couleur jugée indésirable).In order not to prohibitively multiply the number of projectors used, each projector must be able to selectively project several colors, including in general the color white. On the other hand, it is requested by users that the transition between two colors is done without letting appear "white" (or any other color deemed undesirable).

Cela a pu être réalisé dans le cadre de projecteurs dont les filtres colorés sont interposés sélectivement, au moyen d'un vérin, sur le trajet du faisceau lumineux. Malheureusement, ce type de projecteur s'est avéré bruyant et n'a pu, de ce fait, donner entièrement satisfaction aux utilisateurs.This has been possible in the context of projectors, the colored filters of which are selectively interposed, by means of a jack, on the path of the light beam. Unfortunately, this type of projector proved to be noisy and could not, therefore, give full satisfaction to the users.

Le but de l'invention est de pallier les inconvénients rencontrés jusque là en proposant un projecteur du type déjà cité, silencieux, et autorisant un changement de couleurs sans "blanc" intermédiaire.The object of the invention is to overcome the drawbacks encountered so far by proposing a projector of the type already mentioned, silent, and allowing a change of colors without intermediate "white".

Ce but est atteint, conformément à l'invention, du fait que chaque disque comprend exclusivement trois secteurs colorés dont une couleur est commune à tous les disques, et que le dispositif moteur de chaque disque est associé à un dispositif de commande de façon à faire tourner le disque d'un incrément correspondant au passage du secteur coloré traversé par le faisceau lumineux au nouveau secteur coloré choisi pour être traversé par le faisceau lumineux par le chemin angulaire le plus court, moyennant quoi le passage d'une couleur différente de la couleur commune à une autre couleur, différente de la couleur commune, se fait sans passer par la couleur commune.This object is achieved, in accordance with the invention, in that each disc comprises exclusively three colored sectors, one color of which is common to all the discs, and that the drive device of each disc is associated with a control device so as to make turn the disc by an increment corresponding to the passage of the colored sector crossed by the light beam to the new colored sector chosen to be crossed by the light beam by the angular path the shorter, whereby the transition from a color different from the common color to another color, different from the common color, is done without going through the common color.

Cette couleur commune à tous les disques est, de façon générale, la couleur blanche, et c'est cette couleur dont on veut éviter l'apparition entre deux autres couleurs. Cependant, on peut juger qu'une autre couleur est indésirable pour les transitions.This color common to all discs is, generally, the white color, and it is this color which we want to avoid the appearance between two other colors. However, you may find that another color is undesirable for transitions.

Le nombre de disques du projecteur, disques placés soit complètement les uns derrière les autres, soit de façon à simplement superposer au moins un secteur de chaque disque à hauteur du faisceau lumineux, dépend du nombre de couleurs désirées pour le projecteur. Ainsi, pour un projecteur devant pouvoir projeter une lumière blanche, la présence d'un disque permet la projection de deux couleurs en plus du blanc, la présence de deux disques permet la projection de quatre couleurs pures, en plus du blanc plus quatre couleurs de combinaisons,et, d'une façon générale, n disques autorisent la projection de 2n couleurs pures en plus du blanc, sans compter les 2n couleurs de combinaisons.The number of discs of the projector, discs placed either completely one behind the other, or so as to simply superimpose at least one sector of each disc at the height of the light beam, depends on the number of colors desired for the projector. Thus, for a projector that must be able to project white light, the presence of a disc allows the projection of two colors in addition to white, the presence of two discs allows the projection of four pure colors, in addition to white plus four colors of combinations, and, in general, n discs allow the projection of 2n pure colors in addition to white, without counting the 2 n colors of combinations.

Par ailleurs, le fait qu'on ait choisi un dispositif à mouvement rotatif entraîne un fonctionnement silencieux contrairement aux dispositifs à mouvement linéaire (par vérins pneumatiques ou autres).Furthermore, the fact that a device with rotary movement has been chosen results in silent operation unlike linear movement devices (by pneumatic cylinders or the like).

Ainsi, selon l'invention, grâce au fait que chaque disque comprend trois secteurs et trois seulement, et que les disques peuvent tourner dans un sens ou dans l'autre de manière que le changement du secteur interposé dans le faisceau lumineux à un secteur autre, nécessairement voisin par construction, se fasse par le chemin le plus court, on est sûr de pouvoir passer d'une couleur à une autre sans passer par la couleur blanche occupant l'un des trois secteurs.Thus, according to the invention, thanks to the fact that each disc comprises three sectors and only three, and that the discs can rotate in one direction or the other so that the change of the sector interposed in the light beam to another sector , necessarily neighboring by construction, is done by the shortest path, one is sure to be able to pass from one color to another without going through the white color occupying one of the three sectors.

En d'autres termes, l'invention réside dans le fait qu'on a placé exclusivement trois couleurs, dont la blanche, sur chaque disque, généralement de façon régulière (c'est-à-dire sur trois secteurs de 120°) quoique que ce ne soit pas une obligation, et que, par ailleurs, la rotation du disque pour le changement de couleurs se fait par incrément de 120° (si la disposition est régulière) positivement ou négativement pour attein- dre la nouvelle couleur.In other words, the invention resides in the fact that only three colors, including white, have been placed on each disc, generally in a regular manner (that is to say on three sectors of 120 °) although that it is not an obligation, and that, moreover, the rotation of the disc for the change of colors is done in increments of 120 ° (if the arrangement is regular) positively or negatively to reach the new color.

Les systèmes permettant de commander le système moteur de chaque disque de manière qu'il entraîne la rotation la plus courte en mesure angulaire destinée à mettre en place le nouvel écran choisi (c'est-à-dire en fait, à choisir le sens de rotation du disque) sont nombreux et connus en eux-mêmes.The systems enabling the motor system of each disc to be controlled so that it causes the shortest rotation in angular measurement intended to set up the new screen chosen (that is to say, in fact to choose the direction of disc rotation) are numerous and known in themselves.

Ainsi, selon un premier mode de réalisation, le dispositif moteur du disque et son dispositif de commande associé, se composent de trois bobines électromagnétiques réparties autour d'un noyau central solidaire de l'axe du disque, l'alimentation de ces bobines se faisant sélectivement au moyen d'un clavier. Selon ce système, le chemin angulaire plus court est toujours emprunté, de façon inhérente à la conception même du système.Thus, according to a first embodiment, the drive motor of the disc and its associated control device, consist of three electromagnetic coils distributed around a central core integral with the axis of the disc, the supply of these coils being done selectively using a keyboard. According to this system, the shorter angular path is always taken, inherently in the very design of the system.

Alors que, dans ce premier mode de réalisation, dispositif moteur et système de commande sont étroitement combinés, on peut concevoir des dispositifs moteurs plus classiques.While, in this first embodiment, the driving device and the control system are closely combined, more conventional driving devices can be designed.

C'est ainsi que le dispositif moteur du disque peut comporter un moteur pas à pas et un galet d'entraînement périphérique du disque, ou bien un moteur couplé directement ou indirectement à l'axe du disque. La première solution est moins encombrante quand le projecteur comporte plusieurs disques successifs.Thus, the disk drive device can comprise a stepping motor and a peripheral drive roller for the disk, or else a motor coupled directly or indirectly to the axis of the disk. The first solution is less bulky when the projector has several successive discs.

Le contrôle de la rotation (et/ou de la position) du disque, agissant au travers d'une électronique convenable sur la commande dans un sens ou dans l'autre du moteur, peut se faire par lecture optique, par horloge, par potentiomètre de recopie ou autre.The control of the rotation (and / or the position) of the disc, acting through suitable electronics on the control in one direction or the other of the motor, can be done by optical reading, by clock, by potentiometer or other.

L'invention et ses avantages seront mieux compris à la lecture de la description de quelques exemples de réalisation, faite en référence aux dessins annexés sur lesquels :

  • - la figure 1 représente, en vue schématique de face;un premier mode de réalisation ;
  • - la figure 2 représente, en vue schématique de face un deuxième mode de réalisation ;
  • - la figure 3 représente, en vue schématique de face, un troisième mode de réalisation ;
  • - la figure 4 représente, en vue schématique de côté un quatrième mode de réalisation ;
  • - la figure 5 représente, en vue schématique de côté un cinquième mode de réalisation.
The invention and its advantages will be better understood on reading the description of some exemplary embodiments, made with reference to the appended drawings in which:
  • - Figure 1 shows, in schematic front view; a first embodiment;
  • - Figure 2 shows, in schematic front view a second embodiment;
  • - Figure 3 shows, in schematic front view, a third embodiment;
  • - Figure 4 shows, in schematic side view a fourth embodiment;
  • - Figure 5 shows, in schematic side view a fifth embodiment.

La figure 1 montre un disque 1 comportant trois secteurs 2, 3, 4 régulièrement répartis et entièrement ou partiellement occupés par des écrans colorés 5, 6, 7 dont l'un, par exemple le 5, est de couleur blanche (jugée indésirable pour les transitions). Un faisceau lumineux, non représenté, traverse l'un des trois secteurs. Le disque 1 peut tourner librement sur son axe 8. Trois bobines électromagnétiques 9, 10, 11 sont disposées fixes autour de l'axe 8, réparties à 120°. Ces bobines sont reliées, d'une part à la masse O et, d'autre part, à une alimentation commune A au travers de trois conducteurs 12, 13, 14 interrompus par des interrupteurs 15, 16, 17. Ces interrupteurs sont commandés de façon classique par un clavier sélectif, la fermeture d'un interrupteur déverrouillant automatiquement l'interrupteur précédemment fermé. De la sorte, une seule bobine à la fois peut être alimentée, et le noyau que forme l'axe vient s'orienter par rapport à cette bobine, de manière à définir une des trois positions possibles du disque. La fermeture d'un autre interrupteur entraîne l'alimentation d'une autre bobine et donc le déplacement du noyau par rapport à cette bobine automatiquement par le chemin angulaire le plus court vers sa nouvelle position. La fermeture des interrupteurs peut être commandée manuellement ou par programme.FIG. 1 shows a disc 1 comprising three sectors 2, 3, 4 regularly distributed and entirely or partially occupied by colored screens 5, 6, 7 one of which, for example 5, is white in color (deemed undesirable for transitions). A light beam, not shown, crosses one of the three sectors. The disc 1 can rotate freely on its axis 8. Three electromagnetic coils 9, 10, 11 are arranged fixed around the axis 8, distributed at 120 °. These coils are connected, on the one hand to earth O and, on the other hand, to a common supply A through three conductors 12, 13, 14 interrupted by switches 15, 16, 17. These switches are controlled from conventionally by a selective keyboard, the closing of a switch automatically unlocking the previously closed switch. In this way, only one coil can be supplied at a time, and the core formed by the axis comes orient themselves relative to this coil, so as to define one of the three possible positions of the disc. The closing of another switch leads to the supply of another coil and therefore the displacement of the core with respect to this coil automatically by the shortest angular path to its new position. The closing of the switches can be controlled manually or by program.

Selon la figure 2, le disque 1 pivote autour de son axe 8 sous l'action d'un galet périphérique 18 entraîné par un moteur 19. La commande de ce moteur 19 dans un sens ou dans l'autre se fait, au travers d'une électronique classique 20 en réponse à des instructions manuelles ou programmées de positionnement d'une part, et au résultat d'un comptage numérique indicateur de la position,effectué au moyen d'une cellule photo-électrique 21 détectant le passage d'un faisceau lumineux dans des trous 22 répartis sur toute la périphérie 23 du disque 1.According to Figure 2, the disc 1 pivots about its axis 8 under the action of a peripheral roller 18 driven by a motor 19. The control of this motor 19 in one direction or the other is done through conventional electronics 20 in response to manual or programmed positioning instructions on the one hand, and to the result of a digital count indicating the position, carried out by means of a photoelectric cell 21 detecting the passage of a light beam in holes 22 distributed over the entire periphery 23 of the disc 1.

Selon la figure 3, une horloge 24 remplace le contrôle optique pour la commande du moteur 19.According to FIG. 3, a clock 24 replaces the optical control for controlling the motor 19.

Selon la figure 4, l'axe 8 du disque 1 est couplé d'une part au moteur 19 supporté par un châssis 25, et, d'autre part, à un potentiomètre de recopie 26, également supporté par le châssis 25, dont les indications de position de disque sont transmises à l'électronique 20 en vue de la commande du moteur 19.According to FIG. 4, the axis 8 of the disc 1 is coupled on the one hand to the motor 19 supported by a chassis 25, and, on the other hand, to a feedback potentiometer 26, also supported by the chassis 25, whose disc position indications are transmitted to the electronics 20 for controlling the motor 19.

Le montage de la figure 5 montre plusieurs disques la, lb et lc montés sur des axes 8a, 8b, 8c, alignés sur la droite 27 et couplés à des potentiomètres de recopie 26a, 26b, 26c pour l'asservissement de leur rotation. Les potentiomètres sont supportés par des supports 27a, 27b, 27c qui portent également les moteurs 19 à galets 18. Un faisceau lumineux 28 traverse successivement les trois disques la, Ib, lc, et l'interposition sélective des filtres colorés autorise l'obtention, en plus de la couleur blanche que porte un filtre de chacun des disques, de six couleurs pures et de huit couleurs de combinaisons.The assembly of FIG. 5 shows several disks 1a, 1b and 1c mounted on axes 8a, 8b, 8c, aligned on the right 27 and coupled to feedback potentiometers 26a, 26b, 26c for the control of their rotation. The potentiometers are supported by supports 27a, 27b, 27c which also carry the motors 19 with rollers 18. A light beam 28 successively crosses the three discs la, Ib, lc, and the selective interposition of the colored filters allows obtaining, in addition to the white color that carries a filter of each disc, six pure colors and eight combination colors.

On voit donc que le projecteur de l'invention est un projecteur compact, silencieux grâce à sa conception et qu'il permet d'éviter les blancs indésirables au passage d'une couleur à l'autre.We therefore see that the projector of the invention is a compact projector, silent thanks to its design and that it avoids unwanted whites when switching from one color to another.

Il sera noté par ailleurs que la simplicité de conception du dispositif de l'invention s'accompagne d'une grande simplicité dans la câblerie : chaque moteur exige un fil positif et un fil négatif, un fil neutre commun pouvant être prévu pour tous les disques. Ainsi, pour six couleurs pures plus un blanc, la câblerie d'un dispositif conforme à l'invention ne comprend que sept fils (pour le mode de réalisation de la figure 5), alors que celle d'un dispositif classique à six filtres commandés par vérins en exige plus.It will also be noted that the simplicity of design of the device of the invention is accompanied by great simplicity in the wiring: each motor requires a positive wire and a negative wire, a common neutral wire being able to be provided for all the discs. . Thus, for six pure colors plus one white, the cabling of a device according to the invention comprises only seven wires (for the embodiment of FIG. 5), while that of a conventional device with six controlled filters by cylinders requires more.

Claims (8)

1. Projecteur à écrans colorés interposés sélectivement sur le faisceau lumineux d'une source lumineuse et montés sur au moins un disque rotatif mû par un dispositif moteur, caractérisé en ce que chaque disque (1) comprend exclusivement trois secteurs colorés (2,3,4) dont une couleur est commune à tous les disques, et en ce que le dispositif moteur de chaque disque est associé à un dispositif de commande, de façon à faire tourner le disque d'un incrément correspondant au passage du secteur coloré traversé par le faisceau lumineux (28) au nouveau secteur coloré choisi pour être traversé par le faisceau lumineux par le chemin angulaire le plus court, moyennant quoi le passage d'une couleur différente commune à une autre couleur, différente de la couleur commune, se fait sans passer par la couleur commune.1. Projector with colored screens selectively interposed on the light beam of a light source and mounted on at least one rotating disc driven by a motor device, characterized in that each disc (1) exclusively comprises three colored sectors (2,3, 4) a color of which is common to all the discs, and in that the driving device of each disc is associated with a control device, so as to rotate the disc by an increment corresponding to the passage of the colored sector traversed by the light beam (28) to the new colored sector chosen to be crossed by the light beam by the shortest angular path, whereby the passage from a different common color to another color, different from the common color, takes place without passing by the common color. 2. Projecteur selon la revendication L, caractérisé en ce que la couleur commune à tous les disques est la couleur blanche.2. Projector according to claim L, characterized in that the color common to all the discs is the color white. 3. Projecteur selon l'une quelconque des revendications 1 ou 2, caractérisé en ce que le dispositif moteur de disque et son dispositif de commande associé se composent de trois bobines électromagnétiques (9 ,10, 11) réparties autour d'un noyau central (8) solidaire de l'axe du disque (1), l'alimentation de ces bobines se faisant sélectivement au moyen d'un. clavier (15,16,17).3. Projector according to any one of claims 1 or 2, characterized in that the disc drive device and its associated control device consist of three electromagnetic coils ( 9 , 10, 1 1 ) distributed around a central core (8) integral with the axis of the disc (1), the supply of these coils being done selectively by means of a. keyboard (15,16,17). 4. Projecteur selon l'une quelconque des revendications 1 ou 2, caractérisé en ce que le dispositif moteur comporte un moteur (19) et un galet d'entraînement (18) périphérique du disque (1).4. Projector according to any one of claims 1 or 2, characterized in that the motor device comprises a motor (19) and a drive roller (18) peripheral of the disc (1). 5. Projecteur selon l'une quelconque des revendications 1 ou 2, caractérisé en ce que le dispositif comporte un moteur (19) couplé à l'axe (8) du disque (1).5. Projector according to any one of claims 1 or 2, characterized in that the device comprises a motor (19) coupled to the axis (8) of the disc (1). 6. Projecteur selon l'une quelconque des revendications 4 ou 5, caractérisé en ce que la rotation du disque est contrôlée au moyen d'une cellule photo-électrique (21) agissant au travers d'un dispositif électronique (20) sur la commande du moteur (19).6. Projector according to any one of claims 4 or 5, characterized in that the rotation of the disc is controlled by means of a photoelectric cell (21) acting through an electronic device (20) on the control of the motor (19). 7. Projecteur selon l'une quelconque des revendications 4 ou 5, caractérisé en ce que la rotation du disque 1 est contrôlée au moyen d'une horloge (24) commandant le moteur (19) au travers d'un dispositif électronique (20).7. Projector according to any one of claims 4 or 5, characterized in that the rotation of the disc 1 is controlled by means of a clock (24) controlling the motor (19) through an electronic device (20) . 8. Projecteur selon l'une quelconque des revendications 4 ou 5, caractérisé en ce que la rotation du disque (1) est contrôlée au moyen d'un potentiomètre de recopie (26) commandant le moteur au travers d'un dispositif électronique (20).8. Projector according to any one of claims 4 or 5, characterized in that the rotation of the disc (1) is controlled by means of a feedback potentiometer (26) controlling the motor through an electronic device (20 ).
EP82401433A 1981-08-03 1982-07-30 Projector with coloured screens on discs Withdrawn EP0072303A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8115053 1981-08-03
FR8115053A FR2510719A1 (en) 1981-08-03 1981-08-03 COLOR SCREEN PROJECTOR ON DISCS

Publications (1)

Publication Number Publication Date
EP0072303A1 true EP0072303A1 (en) 1983-02-16

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EP82401433A Withdrawn EP0072303A1 (en) 1981-08-03 1982-07-30 Projector with coloured screens on discs

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EP (1) EP0072303A1 (en)
JP (1) JPS5846501A (en)
ES (1) ES514474A0 (en)
FR (1) FR2510719A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0260895A2 (en) * 1986-09-11 1988-03-23 Starlite Technology Limited An illumination lamp apparatus
EP0399496A1 (en) * 1989-05-24 1990-11-28 Morpheus Lights, Inc. Selectable mechanical and electronic pattern generating aperture module
GB2290133A (en) * 1994-06-07 1995-12-13 Robert James Clutterham Lighting effect producing device
EP0685681A3 (en) * 1994-05-31 1997-08-27 Sanyo Electric Co Solar lighting apparatus and controller for said apparatus.
GB2311172A (en) * 1996-02-20 1997-09-17 Mad Lighting Ltd Low-torque,interchangable-rotor electric motor

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2511454Y2 (en) * 1992-04-17 1996-09-25 オーデリック株式会社 Projection display device
ES2066654B1 (en) * 1992-06-04 1998-05-01 Llorente Burgueno Maria Angele SUBMERSIBLE MULTICOLOR LIGHTING PROJECTOR SYSTEM.

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1453240A (en) * 1964-08-31 1966-06-03 Improvement for adjustable lighting lamp
GB1036900A (en) * 1963-05-18 1966-07-20 Ivor David Martin Improvements in or relating to lamps for producing coloured light

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1036900A (en) * 1963-05-18 1966-07-20 Ivor David Martin Improvements in or relating to lamps for producing coloured light
FR1453240A (en) * 1964-08-31 1966-06-03 Improvement for adjustable lighting lamp

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0260895A2 (en) * 1986-09-11 1988-03-23 Starlite Technology Limited An illumination lamp apparatus
EP0260895A3 (en) * 1986-09-11 1989-07-26 Starlite Technology Limited An illumination lamp apparatus
EP0399496A1 (en) * 1989-05-24 1990-11-28 Morpheus Lights, Inc. Selectable mechanical and electronic pattern generating aperture module
US5113332A (en) * 1989-05-24 1992-05-12 Morpheus Lights, Inc. Selectable mechanical and electronic pattern generating aperture module
EP0685681A3 (en) * 1994-05-31 1997-08-27 Sanyo Electric Co Solar lighting apparatus and controller for said apparatus.
GB2290133A (en) * 1994-06-07 1995-12-13 Robert James Clutterham Lighting effect producing device
GB2311172A (en) * 1996-02-20 1997-09-17 Mad Lighting Ltd Low-torque,interchangable-rotor electric motor
GB2311172B (en) * 1996-02-20 2000-04-19 Mad Lighting Ltd Low-torque,interchangable-rotor electric motor

Also Published As

Publication number Publication date
FR2510719A1 (en) 1983-02-04
ES8305480A1 (en) 1983-04-16
JPS5846501A (en) 1983-03-18
ES514474A0 (en) 1983-04-16
FR2510719B1 (en) 1984-01-06

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