WO1987001823A1 - Device for the projection of video images on a screen with daylight and/or artificial so-called make-up light - Google Patents

Device for the projection of video images on a screen with daylight and/or artificial so-called make-up light Download PDF

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Publication number
WO1987001823A1
WO1987001823A1 PCT/FR1986/000316 FR8600316W WO8701823A1 WO 1987001823 A1 WO1987001823 A1 WO 1987001823A1 FR 8600316 W FR8600316 W FR 8600316W WO 8701823 A1 WO8701823 A1 WO 8701823A1
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WO
WIPO (PCT)
Prior art keywords
projector
screen
optical mirror
cage
mirror
Prior art date
Application number
PCT/FR1986/000316
Other languages
French (fr)
Inventor
Bernard Bouteille
Original Assignee
Bernard Bouteille
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Bernard Bouteille filed Critical Bernard Bouteille
Publication of WO1987001823A1 publication Critical patent/WO1987001823A1/en

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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/54—Accessories
    • G03B21/56—Projection screens
    • G03B21/60—Projection screens characterised by the nature of the surface
    • G03B21/62—Translucent screens
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/10—Projectors with built-in or built-on screen

Definitions

  • the present application relates to a device for projecting video images on a screen in daylight or / and in so-called artificial light, and its implementation method.
  • the second side, arranged on the spectator side, is treated with anti-reflective gray tint.
  • the quality of the image obtained was still perfectible.
  • the devices according to the prior art consisted of a closed cage hermetic to outside light, of large dimension, thus constituting projection devices which are difficult to accommodate and transport.
  • the object of the present invention is to provide improvements with regard to the quality of projection, as well as to very substantially reduce the volume of the assembly.
  • the device will be described in accordance with the accompanying drawings:
  • FIG. 1 Figure No 10 the frame (12) of the black cage seen from above with location of the roller device (10) and cap support rail.
  • the screen (1) of rigid plastic material is flat in figures 1-3-4 of constant thickness, this thickness being able to vary from 3 to 6 m / m depending on the size of the screen (1).
  • the characteristics on the one hand. to be of very dark gray color, on the other hand to be granite according to a particular process.
  • This granitation is deposited by spraying paint with a very dark gray color so that the granitation carried out with a pistol is deposited in the so-called diamond point shape ( Figure 4), that is to say so that the density of the granitation is decreasing towards the center ( Figure 4) thickness varying from 1.5 m / m to 0.5 m / m in the center.
  • the granitation of the inner face (8) of the screen (1) has the particular function of amplifying and unifying over the entire surface of the screen (1) the light power generated by the video projector (2).
  • the purpose of the external granitation (9) of the screen (1) on the spectator side is to obtain, at the top, at the bottom and on the sides, on the one hand a coloration of the solid image without deformation, on the other hand sharper in ambient light, the name of this amplification and polarization is called gain.
  • This mirror has a forward tilt of 4 degrees from a vertical plane in Figures 2-5-7.
  • the position of the video projector (2) is calculated according to the angle of 8 o with respect to a horizontal plane, but also so that the three projection tubes are vertical to the screen (1) ( Figures 2/5).
  • the optical mirror (3) having an angle of 4 o with respect to a vertical plane, the radiation from the three tubes of the projector (2) arrives perpendicularly in incidence on the optical mirror (3).
  • This projection in this frontal case is called projection ground version.
  • the frame (4) supporting the video projector (2) and the mirror (3) consists of three integral parts which during transport can be folded up.
  • the part of the frame (4) supporting the video projector (2) is mounted on a sliding rail towards the front, which allows the video projector (2) to be brought inside the closed cage (7) ensuring protection , against theft or malice, of the video projector.
  • chassis (4) is characterized by the fact that the commissioning of the projector (2) output version, as well as the positioning of the optical mirror (3) automatically adjusts the distance between the central tube of the video projector and the axis of the optical mirror (3) is 1.50m precise.
  • the projection technique ensures the reduction of the length of the closed cage (7) by the use of an optical mirror (3) carried by the chassis on articulation whose distance from the central tube of the video projector (2) is 1.50 m.
  • the mirror (3) said optical mirror, consists of a perfectly flat annealed glass support.
  • This optical mirror (3) has the property of being anti-reflective, has no diffraction effect, the reproduction of the image is in all respects faithful.
  • the closed cage (7) is characterized by its new dimensions: length 1.50 m, width 2 m, height 2 m and provided with a cap (5) which is mounted on a notched rail in figure 5/6 allowing adjustments to be made. based on ambient stray light "above, side"
  • the dimensions of the cap (5) are for the advancement of Om to 1 m, and a width of 2 m, the sides of this cap (5) come in a triangle up to the level of the projector (2).
  • the closed cage panels (7) are made up of two aluminum plates. Between these plates an extruded polystyrene panel is sandwiched. These panels are classified at fire M 1.
  • the aluminum panels are lacquered internally in black color externally in light color or as required.
  • the removable panels are assembled together with lockable handles (14) Figure 9 fitting into brackets ensuring the rigidity of the assembly. Sealing between the panels is ensured by flexible rubber seals.
  • two panels (6) can support sound equipment consisting of four "2 tweeters 2 bocmers" speakers.
  • an identification plate On the right side at the bottom an identification plate bears the name of the company, the patent number, the name of the patentee, the serial number and the year of manufacture.
  • a technical table comprising a video input, a video output, a sound input, a sound output, an electrical energy input.
  • the panel will be offered as an option, as well as the panels (6) fitted with speakers.
  • the present invention presents a very appreciable progress since it allows the permanent use in any circumstance of the video image at night under normal conditions, also during the day, object of the invention.

Abstract

The device is characterized in that it is comprised of a screen (1) made of plasticized material treated according to a chemical process enabling the fixing of the projected image on the back of the screen. Said image is reflected by an optical mirror (3) which has itself been subjected to a specific treatment avoiding parasitic reflexions as well as the so-called diffraction phenomenon. Said mirror (3) is mounted on a self-adjustable frame (4). A projector (2) is placed before the closed cage (7). The self-adjustable projector (2) is itself placed on the frame (4) supporting the optical mirror (3). The projector (2) may be operated automatically without particular adjustment by positioning it under the screen (1). The screen (1) is placed before the closed cage (7), the mirror being inside said cage which is opaque to the outside light. The projector is external to the assembly only when it is in an operation position.

Description

DISPOSITIF DE PROJECTION D'IMAGES VIDEO SUR ECRAN A LA LUMIERE DU JOUR OU/ET A LA LUMIERE ARTIFICIELLE DITE D'APPOINT.DEVICE FOR PROJECTING VIDEO IMAGES ONTO A LIGHT OF DAY OR / AND IN ARTIFICIAL LIGHT, ADDITIONAL LIGHT.
La présente demande a pour objet un dispositif de projection d'images vidéo sur écran à la lumière du jour ou / et à la lumière artificielle dite d'appoint, et son procédé de mise en oeuvre.The present application relates to a device for projecting video images on a screen in daylight or / and in so-called artificial light, and its implementation method.
Dans L'état antérieur de la technique il est connu d'utiliser un écran en matière plastique rigide comportant deux faces dont l'une disposée côté projecteur est translucide semi opaque de couleur blanc mat.In the prior art, it is known to use a screen made of rigid plastic material comprising two faces, one of which disposed on the projector side is semi-opaque translucent in matt white color.
La seconde face disposée côté spectateur étant traitée anti-reflets de teinte grise. Cependant la σualiié de l'image obtenue était encore perfectible .The second side, arranged on the spectator side, is treated with anti-reflective gray tint. However, the quality of the image obtained was still perfectible.
D'autre part, les dispositifs selon l'art antérieur étaient constitués d'une cage close hermétique à la lumière extérieure, de grande dimension, constituant ainsi des dispositifs de projection difficilement logeables et transportables.On the other hand, the devices according to the prior art consisted of a closed cage hermetic to outside light, of large dimension, thus constituting projection devices which are difficult to accommodate and transport.
L'objet de la présente invention est d'apporter des améliorations en ce qui concerne la qualité de projection, ainsi que de réduire très sensiblement le volume de l'ensemble. Le dispositif sera décrit conformément aux dessins annexes :The object of the present invention is to provide improvements with regard to the quality of projection, as well as to very substantially reduce the volume of the assembly. The device will be described in accordance with the accompanying drawings:
- la figure Nº 1 représente le dispositif de projection vue de face,- Figure Nº 1 represents the projection device seen from the front,
- la figure Nº 2 représente la coupe de l'ensemble vue de côté,- figure Nº 2 represents the section of the assembly seen from the side,
- la figure Nº 3/4 représente l'écran vue de face et son agencement,- Figure Nº 3/4 represents the front view screen and its arrangement,
- la figure Nº 5/6 représente l'appareil vue de coupe en fonctionnement et au repos,- the figure Nº 5/6 represents the cut view of the device in operation and at rest,
- la figure Nº 7/8 représente le chassis (4) supportant le projecteur et le miroir optique en fonctionnement (7) et au repos (8),- Figure Nº 7/8 represents the chassis (4) supporting the projector and the optical mirror in operation (7) and at rest (8),
- la figure Nº 9/10 représente la coupe seule de la cage sans son agencement châssis (4) supportant le projecteur (2) le miroir optique (3),- Figure Nº 9/10 represents the single section of the cage without its chassis arrangement (4) supporting the projector (2) the optical mirror (3),
- la figure Nº 10 le châssis (12) de la cage noire vue de dessus avec emplacement du dispositif de roulettes (10) et rail support casquette. L'écran (1) de matière plastifiée rigide est plat figures 1-3-4 d'épaisseur constante, cette épaisseur pouvant varier de 3 à 6 m/m selon la grandeur de l'écran (1).- Figure Nº 10 the frame (12) of the black cage seen from above with location of the roller device (10) and cap support rail. The screen (1) of rigid plastic material is flat in figures 1-3-4 of constant thickness, this thickness being able to vary from 3 to 6 m / m depending on the size of the screen (1).
Présentant sur sa face intérieure (8) côté projecteur (2) la caractéristique d'être légèrement uniformément granité. Ce granitage est obtenu par pulvérisation de peinture à l'aide d'un pistolet. Cette peinture est de la couleur de la plaque mate et transparente.Having the characteristic of being slightly uniformly granular on its inner face (8) on the projector side (2). This granitation is obtained by spraying paint using a spray gun. This paint is the color of the matt and transparent plate.
Sur la surface extérieure (9) de l'écran (1) côté spectateur, les caractéristiques d'une part. d'être de couleur gris très sombre, d'autre part d'être granité selon un procédé particulier. Ce granitage est déposé par projection de peinture de couleur gris très sombre de manière à ce que le granitage effectué au pistoletsoit déposé en forme dite pointe de diamant (figure 4), c'est-à-dire de manière à ce que la densité du granitage soit dégressive vers le centre (figure 4) épaisseur variant de 1,5 m/m à 0,5 m/m au centre . Le granitage de la face intérieure (8) de l'écran (1) a pour fonction particulière d'amplifier et unifier sur toute la surface de l'écran(1) la puissance lumineuse générée par le vidéo-projecteur (2).On the outside surface (9) of the screen (1) on the spectator side, the characteristics on the one hand. to be of very dark gray color, on the other hand to be granite according to a particular process. This granitation is deposited by spraying paint with a very dark gray color so that the granitation carried out with a pistol is deposited in the so-called diamond point shape (Figure 4), that is to say so that the density of the granitation is decreasing towards the center (Figure 4) thickness varying from 1.5 m / m to 0.5 m / m in the center. The granitation of the inner face (8) of the screen (1) has the particular function of amplifying and unifying over the entire surface of the screen (1) the light power generated by the video projector (2).
Le granitage extérieur (9) de l'écran (1) côté spectateur a pour but d'obtenir en haut, en bas et sur les côtés d'une part une coloration de l'image unie sans déformation, d'autre part une polarisation plus nette à la lumière ambiante, la dénomination de cette amplification et polarisation s'appelle le gain.The purpose of the external granitation (9) of the screen (1) on the spectator side is to obtain, at the top, at the bottom and on the sides, on the one hand a coloration of the solid image without deformation, on the other hand sharper in ambient light, the name of this amplification and polarization is called gain.
Le projecteur (2) placé hors de la cage vidéo (7) à l'avant selon un angle précis de 8 degrés par rapport au plan horizontal, est fixé sur un châssis d'aluminium rigide (4) supportant également un miroir optique (3). Ce miroir a une inclinaison vers l'avant de 4 degrés par rapport à un pian vertical figures 2-5-7.The projector (2) placed outside the video cage (7) at the front at a precise angle of 8 degrees relative to the horizontal plane, is fixed to a rigid aluminum frame (4) also supporting an optical mirror (3 ). This mirror has a forward tilt of 4 degrees from a vertical plane in Figures 2-5-7.
La position du vidéo projecteur (2) est calculée en fonction de l'angle de 8 º par rapport à un plan horizontal, mais également de façon à ce que les trois tubes de projection soient à la verticale de l'écran (1) (figures 2/5). Le miroir optique (3) ayant un angle de 4 º par rapport à un plan vertical, le rayonnement issu des trois tubes du projecteur (2) arrive perpendiculairement en incidence sur le miroir optique (3).The position of the video projector (2) is calculated according to the angle of 8 º with respect to a horizontal plane, but also so that the three projection tubes are vertical to the screen (1) ( Figures 2/5). The optical mirror (3) having an angle of 4 º with respect to a vertical plane, the radiation from the three tubes of the projector (2) arrives perpendicularly in incidence on the optical mirror (3).
Cette projection dans ce cas frontal est dite projection version sol.This projection in this frontal case is called projection ground version.
Le châssis (4) supportant le vidéo projecteur (2) et le miroir (3) est constitué de trois parties solidaires qui lors du transport peuvent se replier. La partie du châssis (4) supportant le vidéo projecteur (2) est montée sur un rail coulissant vers l'avant, ce qui permet de rentrer le vidéo projecteur (2) à l'intérieur de la cage close (7) assurant la protection, contre le vol ou la malveillance, du vidéo projecteur.The frame (4) supporting the video projector (2) and the mirror (3) consists of three integral parts which during transport can be folded up. The part of the frame (4) supporting the video projector (2) is mounted on a sliding rail towards the front, which allows the video projector (2) to be brought inside the closed cage (7) ensuring protection , against theft or malice, of the video projector.
Lorsque le projecteur (2) est au repos donc dans la cage close (7) une trappe (11) qui est sous le projecteur (2) lors de son fonctionnement (figure 2/5) occupe la place du projecteur (2), cette trappe (11) est verrouillable assurant la protection de l'ensemble contre tout acte de malveillance (figure 6 ) .When the projector (2) is at rest therefore in the closed cage (7) a hatch (11) which is under the projector (2) during its operation (Figure 2/5) occupies the place of the projector (2), this hatch (11) is lockable ensuring protection of the assembly against any malicious act (Figure 6).
Il est à remarquer que le châssis (4) se caractérise par le fait que la mise en service du projecteur (2) version sortie, ainsi que le positionnement du miroir optique (3) règle automatiquement la distance comprise entre le tube central du vidéo projecteur et l'axe du miroir optique (3) est de 1,m 50 précis.It should be noted that the chassis (4) is characterized by the fact that the commissioning of the projector (2) output version, as well as the positioning of the optical mirror (3) automatically adjusts the distance between the central tube of the video projector and the axis of the optical mirror (3) is 1.50m precise.
Le positionnement en avant de la cage close (7) et extérieur du projecteur (2) (figures 2 - 7) permet l'accès aux réglages techniques du projecteur (2) le capot s Ouvrant d'avant en arrière.Positioning in front of the closed cage (7) and outside of the projector (2) (Figures 2 - 7) allows access to the technical settings of the projector (2), the cover opening from front to back.
La technique de projection, assure la réduction de la longueur de la cage close (7) par l'utilisation d'un miroir optique (3) porté par le châssis sur articulation dont la distance par rapport au tube central du vidéo projecteur (2) est de 1 m 50.The projection technique ensures the reduction of the length of the closed cage (7) by the use of an optical mirror (3) carried by the chassis on articulation whose distance from the central tube of the video projector (2) is 1.50 m.
Cette technique permet de respecter rigoureusement la distance de projection obligatoire (base d'écran multiplié par 1,5)projecteur (2) miroir (3) miroir (3) à écran (1). Le miroir (3) dit miroir optique est constitué par un support en verre recuit parfaitement plat.This technique makes it possible to strictly comply with the mandatory projection distance (screen base multiplied by 1.5) projector (2) mirror (3) mirror (3) with screen (1). The mirror (3), said optical mirror, consists of a perfectly flat annealed glass support.
Sur la face avant du support il est projeté en pression sous vide des particules d'aluminiumla couche de particule parfaitement et régulièrement répartie est de l'ordre de 2 à 3 microns, ce procédé SOVIS a pour formule SOVIS AL + SIO.On the front face of the support, aluminum particles are sprayed under vacuum pressure. The perfectly and evenly distributed particle layer is of the order of 2 to 3 microns, this SOVIS process has the formula SOVIS AL + SIO.
Ce miroir optique (3) a la propriété d'être anti reflets, ne présente aucun effet de diffraction, la restitution de l'image est en tout point fidèle.This optical mirror (3) has the property of being anti-reflective, has no diffraction effect, the reproduction of the image is in all respects faithful.
La cage close (7) se caractérise par ses nouvelles dimensions : longueur 1 m50, largeur 2 m, hauteur 2 m et pourvue d'une casquette(5) qui est montée sur un rail cranté figure 5 /6 permettant de procéder à des réglages en fonction des lumières parasites ambiantes "dessus, côté"The closed cage (7) is characterized by its new dimensions: length 1.50 m, width 2 m, height 2 m and provided with a cap (5) which is mounted on a notched rail in figure 5/6 allowing adjustments to be made. based on ambient stray light "above, side"
Les dimensions de la casquette (5) sont pour l'avancée de Om à 1 m, et d'une largeur de 2 m, les côtés de cette casquette (5) viennent en triangle jusqu'au niveau du projecteur (2).The dimensions of the cap (5) are for the advancement of Om to 1 m, and a width of 2 m, the sides of this cap (5) come in a triangle up to the level of the projector (2).
Le chassis (12) supportant la cage noire (7) (ou close) sur lequel est fixé le châssis (4) supportant le projecteur (2) et le miroir optique (3) est monté sur quatre roues orientables (10). Ces roues (10) sont munies de freins.The chassis (12) supporting the black cage (7) (or closed) on which is fixed the chassis (4) supporting the projector (2) and the optical mirror (3) is mounted on four steerable wheels (10). These wheels (10) are provided with brakes.
Les panneaux de la cage close (7) sont composés de deux plaques aluminium. Entre ces plaques un panneau en polystyrène extrudé est pris en sandwich. Ces panneaux sont classés au feu M 1.The closed cage panels (7) are made up of two aluminum plates. Between these plates an extruded polystyrene panel is sandwiched. These panels are classified at fire M 1.
L'emploi de ce matériau les rendent légers et de maniement aisé.The use of this material makes them light and easy to handle.
Les panneaux d'aluminium sont laqués intérieurement de couleur noire extérieurement de couleur claire ou selon la demande . Les panneaux démontables sont assemblés entre eux avec poignées verrouillables (14) figure 9 s'insérant dans des équerres assurant la rigidité de l'ensemble. L'étanchéité entre les panneaux étant assurée par des joints en caoutchouc souple.The aluminum panels are lacquered internally in black color externally in light color or as required. The removable panels are assembled together with lockable handles (14) Figure 9 fitting into brackets ensuring the rigidity of the assembly. Sealing between the panels is ensured by flexible rubber seals.
A la base des panneaux sur l'avant de la cage vidéo (7) soins l'écran (1) figure 1 de part et d'autre du projecteur (2) deux panneaux (6) peuvent supporter un équipement de sonorisation composé de quatre hauts parleurs "2 tweeters 2 bocmers".At the base of the panels on the front of the video cage (7) care the screen (1) figure 1 on either side of the projector (2) two panels (6) can support sound equipment consisting of four "2 tweeters 2 bocmers" speakers.
Sur le côté droit en bas une plaque d'identification porte le nom de la société, le numéro du brevet, le nom du breveté, le numéro de série et l'année de fabrication.On the right side at the bottom an identification plate bears the name of the company, the patent number, the name of the patentee, the serial number and the year of manufacture.
Sur le panneau gauche un tableau technique comportant une entrée vidéo, une sortie vidéo, une entrée son, une sortie son, une entrée énergie électrique. Le panneau sera proposé en option, ainsi que les panneaux (6) équipés de hauts parleurs.On the left panel a technical table comprising a video input, a video output, a sound input, a sound output, an electrical energy input. The panel will be offered as an option, as well as the panels (6) fitted with speakers.
Utilisation possible de l'inventionPossible use of the invention
L'utilisation possible du procédé est multiple. Il est clair que l'image informe et est nécessaire aujourd'hui dans toutes les activités professionnelles, artistiques, commerciales, pédagogiques, sportives.The possible use of the process is multiple. It is clear that the image informs and is necessary today in all professional, artistic, commercial, educational, sporting activities.
professionnelles, formation, information, gestion, documentaires, conférences sur porduit, graphismes et données informatisées. information, projection d'images, actualité, de documentaires, ets... commerciales, publicités documentaires à caractère d'information sur produit destiné à la vente publique. artistiques, projection de films vidéo de variétés, reportages sportifs dans certains cas sur les stades, terrains de sport, les sportifs pourront revoir la séquence visuelle d'une action avec le ralenti de cette action, cas de sport où toute faute demande un arrêt de jeux, exemple : tennis, basket. pédagogique, la formation professionnelle dans les lycées, collèges, universités, facultés.professional, training, information, management, documentaries, conferences on porduit, graphics and computerized data. information, projection of images, news, documentaries, etc., commercial, documentary advertisements of a product information intended for public sale. artistic, projection of video films of varieties, sports reports in certain cases on the stadiums, sports grounds, the sportsmen will be able to review the visual sequence of an action with the slow motion of this action, case of sport where any fault requires a stop of games, example: tennis, basketball. educational, vocational training in high schools, colleges, universities, faculties.
Divers, l'utilisation dans des hôpitaux, hôtels, usines, campings, lieux de passage, gares, mairies, métro, aéroports, studios de télévision. Spécifiques, protection, information sur circulation routière, autoroutière, notamment pour informations provenant de PC routiers sur aires de repos ou stations restoroutes, moyens utilisés : le Minitel. Podiums radio où éventuellement la retransmission sur écran géant de débats, information.Miscellaneous, the use in hospitals, hotels, factories, campsites, places of passage, stations, town halls, metro, airports, television studios. Specific, protection, information on road traffic, motorway, in particular for information coming from road traffic control centers or rest areas, means used: the Minitel. Radio podiums where possibly the retransmission on a giant screen of debates, information.
Exemple : dans des salons internationaux la présentation sur ces écrans en condition de lumière ambiante normale de films vidéo présentant le savoir faire dans tous les domaines techniques, commerce, culture.Example: in international trade fairs the presentation on these screens in normal ambient light of video films presenting the know-how in all technical fields, trade, culture.
Résumé des utilisateurs potentiels de l'inventionSummary of potential users of the invention
- commerce : publicité, - route : information, aéroports, gares, métro,- trade: advertising, - road: information, airports, stations, metro,
- stades : circuits,- stadiums: circuits,
- écoles, collectivités locales, administrations, facultés, universités, lieux publics, hôpitaux, hôtels, campings. - radio télévision : studios reprise d'images sur émission,- schools, local authorities, administrations, faculties, universities, public places, hospitals, hotels, campsites. - radio and television: studios showing images on broadcast,
- expositions : forums, foires nationales, internationales, meetings.- exhibitions: forums, national, international fairs, meetings.
La présente invention présente un progrès très appréciable puisqu'elle permet l'utilisation permanente en toute circonstance de l'image vidéo de nuit en conditions normales, de jour également, objet de l'invention. The present invention presents a very appreciable progress since it allows the permanent use in any circumstance of the video image at night under normal conditions, also during the day, object of the invention.

Claims

REVENDICATIONS
1. Le dispositif d'images vidéo sur écran à la lumière du jour caractérisé en ce qu'il est constitué; 1 - d'un écran en matière plastifié rigide (1) d'épaisseur constante de 3 à 6 m/m selon sa grandeur, dont la surface interne 48) côté projecteur (2) est légèrement granité de couleur blanc mat transparent, dont la surface externe (9) côté spectateur de couleur gris foncé est granité de sorte que la répartition de ce granitage soit en forme dite pointe de diamant selon une densité dégressive vers le centre1. The device for video images on a screen in daylight, characterized in that it is made up; 1 - a screen of rigid plastic material (1) with a constant thickness of 3 to 6 m / m depending on its size, whose internal surface 48) on the projector side (2) is slightly granite with a transparent matt white color, the external surface (9) on the spectator side of dark gray color is granite so that the distribution of this granitation is in the form known as diamond point according to a decreasing density towards the center
(de 1 m/m à 0,6 m/m environ).(from 1 m / m to 0.6 m / m approximately).
2 - d'un projecteur (2), d'un châssis (4), d'un miroir optique (3) et d'une cage noire close (7) 2. Dispositif selon la revendication nº 1 caractérisé en ce que le projecteur (2)est placé extérieurement à l'avant de la cage close (7) les tubes de projection à la verticale de l'écran (1) selon un angle précis de 8º par rapport à un plan horizontal en ce qu'il est fixé sur un châssis mobile en aluminium supportant un miroir optique (3).2 - a projector (2), a frame (4), an optical mirror (3) and a closed black cage (7) 2. Device according to claim 1 characterized in that the projector (2) is placed externally in front of the closed cage (7) the vertical projection tubes of the screen (1) at a precise angle of 8º with respect to a horizontal plane in that it is fixed on a mobile aluminum frame supporting an optical mirror (3).
3 - Dispositif selon la revendication 1 ou 2 caractérisé en ce que le châssis (4) supportant le projecteur (2) et le miroir optique (3) est composé de trois parties figure 7/8 repliables.3 - Device according to claim 1 or 2 characterized in that the frame (4) supporting the projector (2) and the optical mirror (3) is composed of three parts Figure 7/8 foldable.
4 - Dispositif selon la revendication 3 caractérisé en ce que la partie ( 4 ) possède un rail (13) permettant de rentrer le projecteur (2) à l'intérieur de la cage close (7) (figure 8).4 - Device according to claim 3 characterized in that the part (4) has a rail (13) for entering the projector (2) inside the closed cage (7) (Figure 8).
5 -Dispositif selon l'une quelconque des revendications précédentes caractérisé en ce que le miroir optique (3) fixé sur un panneau de contre plaqué est porté par le châssis (4) --— , et ce qu'il est placé à 1,m50 du tube central du vidéo projecteur (2). 6 - Dispositif selon une quelconque des revendications préalables caractérisé en ce que le miroir (3) est constitué par un support en verre recuit plat sur la surface duquel est projeté sous pression et sous vide des particules d'aluminium étalé en une surface égale ne dépassant pas deux à trois microns procédé Sovis - formule AL + SIO ce traitement se caractérise par la qualité de restitution de l'image qui ne subit ni réflection ni diffraction.5 -A device according to any one of the preceding claims, characterized in that the optical mirror (3) fixed on a plywood panel is carried by the chassis (4) --—, and that it is placed at 1, m50 of the central tube of the video projector (2). 6 - Device according to any one of the preceding claims characterized in that the mirror (3) is constituted by a flat annealed glass support on the surface of which is sprayed under pressure and under vacuum particles of aluminum spread out in an equal surface not exceeding not two to three microns Sovis process - formula AL + SIO this treatment is characterized by the quality of image reproduction which does not undergo any reflection or diffraction.
7 - Dispositif selon une quelconque des revendications précédentes caractérisé en ce que la cage close (7) a pour dimension 1,50 m de longueur, 2,00 m de largeur et 2,00 m de hauteur, et ce qu'elle comporte une casquette (5) montée sur un rail cranté, permettant son positionnement en fonction de la lumière extérieure ambiante.7 - Device according to any one of the preceding claims, characterized in that the closed cage (7) has the dimension 1.50 m in length, 2.00 m in width and 2.00 m in height, and that it comprises a cap (5) mounted on a notched rail, allowing its positioning as a function of the ambient outside light.
8 - Dispositif selon une quelconque des revendications précédentes caractérisé en ce que le châssis (12) supportant la cage close (7) et l'ensemble technique fixe sur le châssis (4) projecteur (2) miroir optique (3) est monté des roulettes (10) orientables et munies de freins.8 - Device according to any one of the preceding claims, characterized in that the chassis (12) supporting the closed cage (7) and the fixed technical assembly on the chassis (4) projector (2) optical mirror (3) is fitted with rollers (10) orientable and fitted with brakes.
En ce qu'elle est constituée de panneaux en polystyrène extrudé pris en sandwich entre desx plaques d'aluminium bicolores, intérieurement de couleur noir mat, extérieur laqué de couleur claire.In that it is made up of extruded polystyrene panels sandwiched between two bicolour aluminum plates, internally in matt black color, exterior lacquered in light color.
Les panneaux se caractérisent selon la revendication par leur technique de montage effectué à l'aide de clefs verrouillables (14), la rigidité de l'ensemble est assurée par des équerres.The panels are characterized according to the claim by their mounting technique carried out using lockable keys (14), the rigidity of the assembly is ensured by brackets.
L'étanchéité est assurée par des joints en caoutchouc souple. Sealing is ensured by flexible rubber seals.
PCT/FR1986/000316 1985-09-23 1986-09-18 Device for the projection of video images on a screen with daylight and/or artificial so-called make-up light WO1987001823A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8514160A FR2587811B1 (en) 1985-09-23 1985-09-23 DEVICE FOR PROJECTING VIDEO IMAGES ONTO LIGHT OF DAY OR / AND ARTIFICIAL LIGHT ADDITIONAL SCREEN
FR85/14160 1985-09-23

Publications (1)

Publication Number Publication Date
WO1987001823A1 true WO1987001823A1 (en) 1987-03-26

Family

ID=9323211

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR1986/000316 WO1987001823A1 (en) 1985-09-23 1986-09-18 Device for the projection of video images on a screen with daylight and/or artificial so-called make-up light

Country Status (3)

Country Link
EP (1) EP0238583A1 (en)
FR (1) FR2587811B1 (en)
WO (1) WO1987001823A1 (en)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
CN111208648A (en) * 2020-01-14 2020-05-29 嘉兴驭光光电科技有限公司 Diffraction-suppressing optical member, diffraction-suppressing display panel, and under-panel imaging device

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Publication number Priority date Publication date Assignee Title
US1381022A (en) * 1920-01-20 1921-06-07 Lichtbild Ges E V Deutsche Optical projection-screen
FR643277A (en) * 1927-11-02 1928-09-13 Improvements to projection devices
US2131039A (en) * 1936-06-09 1938-09-27 Rupert H Draeger Fine grain translucent screen
US2257999A (en) * 1938-08-20 1941-10-07 Bernard M Bodde Translucent picture projection screen and manufacture thereof
US3051040A (en) * 1959-04-03 1962-08-28 Hubert J Davis Projection cabinet
FR1553293A (en) * 1968-01-25 1969-01-10
US4394681A (en) * 1981-04-27 1983-07-19 Zenith Radio Corporation Optical system for projection television
GB2138160A (en) * 1983-03-11 1984-10-17 Jmc Compak Limited Rear projection display apparatus

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1381022A (en) * 1920-01-20 1921-06-07 Lichtbild Ges E V Deutsche Optical projection-screen
FR643277A (en) * 1927-11-02 1928-09-13 Improvements to projection devices
US2131039A (en) * 1936-06-09 1938-09-27 Rupert H Draeger Fine grain translucent screen
US2257999A (en) * 1938-08-20 1941-10-07 Bernard M Bodde Translucent picture projection screen and manufacture thereof
US3051040A (en) * 1959-04-03 1962-08-28 Hubert J Davis Projection cabinet
FR1553293A (en) * 1968-01-25 1969-01-10
US4394681A (en) * 1981-04-27 1983-07-19 Zenith Radio Corporation Optical system for projection television
GB2138160A (en) * 1983-03-11 1984-10-17 Jmc Compak Limited Rear projection display apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111208648A (en) * 2020-01-14 2020-05-29 嘉兴驭光光电科技有限公司 Diffraction-suppressing optical member, diffraction-suppressing display panel, and under-panel imaging device
CN111208648B (en) * 2020-01-14 2021-05-07 嘉兴驭光光电科技有限公司 Diffraction-suppressing optical member, diffraction-suppressing display panel, and under-panel imaging device

Also Published As

Publication number Publication date
EP0238583A1 (en) 1987-09-30
FR2587811B1 (en) 1988-01-15
FR2587811A1 (en) 1987-03-27

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