ES2253046B1 - MULTI-PAPER SCREEN FOR PROJECTION AND REARPROJECTION AND VISION FOR BOTH FACES. - Google Patents

MULTI-PAPER SCREEN FOR PROJECTION AND REARPROJECTION AND VISION FOR BOTH FACES. Download PDF

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Publication number
ES2253046B1
ES2253046B1 ES200302814A ES200302814A ES2253046B1 ES 2253046 B1 ES2253046 B1 ES 2253046B1 ES 200302814 A ES200302814 A ES 200302814A ES 200302814 A ES200302814 A ES 200302814A ES 2253046 B1 ES2253046 B1 ES 2253046B1
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Prior art keywords
layer
screen according
screen
constituted
adhesive
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Withdrawn - After Issue
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ES200302814A
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Spanish (es)
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ES2253046A1 (en
Inventor
Israel Muñoz Jandra
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MU OZ JANDRA ISRAEL
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MU OZ JANDRA ISRAEL
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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

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Overhead Projectors And Projection Screens (AREA)

Abstract

Pantalla multicapa para proyección y retroproyección y visión por ambas caras que está constituida por una capa de material translúcido antirreflejos con alta ganancia de contraste, brillo y definición, que se fija mediante una capa intermedia de adhesivo matizador con alto grado de transparencia a un filtro laminar plástico, reflectante selectivamente de un bajo porcentaje de la luz proyectada de longitud de onda más corta, y que es transparente por el resto del espectro proyectado.Multilayer screen for projection and rear projection and vision on both sides that is constituted by a layer of translucent anti-reflective material with high gain of contrast, brightness and definition, which is fixed by an intermediate layer of matting adhesive with high degree of transparency to a laminar filter plastic, selectively reflective of a low percentage of the projected light of shorter wavelength, and that is transparent for the rest of the projected spectrum.

Description

Pantalla multicapa para proyección y retroproyección y visión por ambas caras.Multilayer screen for projection and overhead projection and vision on both sides.

Objeto de la invenciónObject of the invention

La presente invención se refiere a una pantalla para proyección y retroproyección y visión por ambas caras.The present invention relates to a screen for projection and rear projection and vision on both sides.

Antecedentes de la invenciónBackground of the invention

En la actualidad se utilizan pantallas para proyectores que, ya sean rígidas, flexibles, tensionadas o de cualquier otro tipo, sólo sirven para recibir el haz proyectado por una de sus caras, e igualmente solamente se visualiza la imagen proyectada por una de sus caras.Currently, screens are used to projectors that, whether rigid, flexible, tensioned or any other type, only serve to receive the beam projected by one of its faces, and also only the image is displayed projected by one of its faces.

Además, el ángulo de visión conseguido con estas pantallas, especialmente con las retroproyectadas, es reducido y con una gran variación de la luminosidad según se va abriendo lateralmente.In addition, the angle of vision achieved with these  screens, especially with overhead projections, is reduced and with a great variation in brightness as it opens sideways.

Esto supone un inconveniente y una desventaja en comparación con la utilización de la pantalla de la invención.This is an inconvenience and a disadvantage in  comparison with the use of the screen of the invention.

Descripción de la invenciónDescription of the invention

La pantalla del invención tiene una constitución versátil, ya que permite tanto la proyección como la retroproyección por ambas caras, visualizándose la imagen por ambas caras, a diferencia de las pantallas actuales.The screen of the invention has a constitution  versatile, as it allows both projection and rear projection on both sides, the image being visualized on both sides faces, unlike current screens.

De acuerdo con la invención, la pantalla está constituida por los siguientes elementos:According to the invention, the screen is constituted by the following elements:

- una capa de material traslúcido antirreflejos, que mejora el contraste de la imagen proyectada. Esta capa puede ser flexible o tener cierta rigidez, aportando en este caso el cuerpo que necesita el propio armado de la pantalla.- a layer of anti-glare translucent material, which improves the contrast of the projected image. This layer can be flexible or have some rigidity, contributing in this case the body that needs the screen's own assembly.

- una capa de material adhesivo matizador con un alto grado de transparencia, preferentemente de densidad elevada.- a layer of matting adhesive material with a high degree of transparency, preferably of density high.

- un filtro laminar plástico reflectante selectivamente de un bajo porcentaje de la luz de longitud de onda más corta, y transparente al resto del espectro, que mejora el contraste y definición de la imagen proyectada.- a reflective plastic laminar filter selectively a low percentage of light wavelength shorter, and transparent to the rest of the spectrum, which improves the contrast and definition of the projected image.

- opcionalmente, una capa portante de material transparente rígido ligeramente flexible, que va a adherida al filtro mediante una capa de adhesivo matizador con alto grado de transparencia y densidad preferentemente elevada. Esta capa portante es utilizada idealmente cuando la capa exterior de material traslúcido es flexible para armar la pantalla, y puede tener dimensiones y formas diversas que mejore la estética de la pantalla, así como su sujeción o apoyo.- optionally, a carrier layer of material rigid transparent slightly flexible, which will adhere to the filter using a layer of matting adhesive with a high degree of transparency and preferably high density. This layer bearing is ideally used when the outer layer of Translucent material is flexible to arm the screen, and can have different dimensions and shapes that improve the aesthetics of the screen, as well as its support or support.

En caso de no existir la capa portante, y ser flexible la capa translúcida, la pantalla sería enrollable lo cual facilita su transporte.If there is no supporting layer, and be flexible the translucent layer, the screen would be roller which Easy transport.

Todas las capas tienen un grado de dilatación equivalente para evitar movimientos relativos entre las mismas que puedan originar su despegue mutuo y perjudicar la imagen.All layers have a degree of expansion equivalent to avoid relative movements between them that they can cause their mutual takeoff and damage the image.

Breve descripción de los dibujosBrief description of the drawings

La figura 1 muestra una vista de la pantalla de la invención.Figure 1 shows a view of the screen of the invention.

La figura 2 muestra una sección por II-II de la figura 1.Figure 2 shows a section by II-II of figure 1.

La figura 3 muestra una vista de una variante de realización de la pantalla de la invención.Figure 3 shows a view of a variant of  embodiment of the screen of the invention.

La figura 4 muestra una sección por IV-IV la figura 3.Figure 4 shows a section by IV-IV Figure 3.

Descripción de una realización práctica de la invenciónDescription of a practical embodiment of the invention

La pantalla 1 de la invención está constituida por las siguientes capas:Screen 1 of the invention is constituted by the following layers:

- una capa 2 exterior de material traslúcido antirreflejos que mejora los niveles de definición contraste y brillo. Puede ser flexible o tener una rigidez portante, y está constituida preferentemente en PVC mateado.- an outer layer 2 of translucent material anti-glare that improves contrast definition levels and brightness. It can be flexible or have a stiff bearing, and is preferably constituted in matt PVC.

- una capa 3 de adhesivo matizador del haz luminoso, con un alto grado de transparencia, a través de la cual se adhiere la capa 4 siguiente. El adhesivo es preferentemente compuesto de una base de caucho.- a layer 3 of beam matting adhesive bright, with a high degree of transparency, through which The next layer 4 is adhered. The adhesive is preferably Composed of a rubber base.

- la capa 4, constituida por un filtro laminar plástico (P.E.T.), de 12 micras de espesor, reflectante selectivamente de un bajo porcentaje de las ondas luminosas de longitud de onda más corta, siendo transparente para el resto del espectro.- layer 4, consisting of a laminar filter plastic (P.E.T.), 12 microns thick, reflective selectively of a low percentage of the light waves of shorter wavelength, being transparent to the rest of the spectrum.

- una capa 5 opcional de adhesivo análogo al de la capa 3, para fijar la capa 6.- an optional layer 5 of adhesive similar to that of layer 3, to fix layer 6.

- la capa 6, opcional, que es portante. Esta capa, como se ve en la figura 3, puede prolongarse y constituir un soporte 7 de apoyo en el suelo, o un soporte para colgar o similar, e incluso puede constituir el soporte para el proyector, no representado. Está constituida por cualquier material transparente y de rigidez suficiente, tal como metacrilato, etc.- layer 6, optional, which is bearing. This layer, as seen in figure 3, can be prolonged and constitute a floor support 7, or a hanging bracket or the like, and can even constitute the support for the projector, not represented. It consists of any transparent material and of sufficient rigidity, such as methacrylate, etc.

De este modo la pantalla tiene una constitución simple y óptima ya que refleja y visualiza la imagen por ambas caras, y con un alto ángulo de visualización, cercano a los 180º.In this way the screen has a constitution simple and optimal since it reflects and visualizes the image by both faces, and with a high viewing angle, close to 180º.

Claims (9)

1. Pantalla multicapa para proyección y retroproyección y visión por ambas caras; caracterizada porque está constituida por una capa de material translúcido antirreflejos con alta ganancia de contraste, brillo y definición, que se fija mediante una capa intermedia de adhesivo matizador con alto grado de transparencia a un filtro laminar plástico, reflectante selectivamente de un bajo porcentaje de la luz proyectada de longitud de onda más corta, y que es transparente por el resto del espectro proyectado.1. Multilayer screen for projection and rear projection and vision on both sides; characterized in that it is constituted by a layer of translucent anti-reflective material with high contrast, brightness and definition gain, which is fixed by means of an intermediate layer of matting adhesive with a high degree of transparency to a plastic laminar filter, selectively reflecting a low percentage of the projected light of shorter wavelength, and that is transparent for the rest of the projected spectrum. 2. Pantalla según reivindicación 1 caracterizada porque opcionalmente se fija a la cara libre del filtro laminar, mediante una capa de adhesivo matizador de alto grado de transparencia, una capa portante transparente sensiblemente rígida, que se constituye en un soporte de apoyo y/o suspensión de la pantalla.2. Screen according to claim 1, characterized in that it is optionally fixed to the free face of the laminar filter, by means of a layer of high-transparency matting adhesive, a substantially rigid transparent bearing layer, which constitutes a support and / or suspension support from the screen. 3. Pantalla según reivindicación 1 caracterizada porque la capa de material traslúcido es flexible.3. Screen according to claim 1 characterized in that the translucent material layer is flexible. 4. Pantalla según reivindicación 1 caracterizada porque la capa de material traslúcido es rígida o semirrígida, y portante.4. Screen according to claim 1 characterized in that the layer of translucent material is rigid or semi-rigid, and bearing. 5. Pantalla según reivindicación 1 caracterizada porque todas las capas de la pantalla tienen igual o similar grado de dilatación.5. Screen according to claim 1 characterized in that all the layers of the screen have the same or similar degree of expansion. 6. Pantalla según reivindicación 1 caracterizada porque la capa de material traslúcido esta constituida en PVC mateado.6. Screen according to claim 1 characterized in that the layer of translucent material is constituted in matt PVC. 7. Pantalla según reivindicación 1 caracterizada porque el adhesivo matizador con alto grado de transparencia está constituido por adhesivo a base de caucho.7. Screen according to claim 1 characterized in that the matting adhesive with a high degree of transparency is constituted by a rubber-based adhesive. 8. Pantalla según reivindicación 1 caracterizada porque el filtro está constituido en PET, PVC o vinilo en brillo.8. Screen according to claim 1 characterized in that the filter is constituted in PET, PVC or gloss vinyl. 9. Pantalla según reivindicación 1 caracterizada porque la capa portante está constituida en metacrilato.9. Screen according to claim 1 characterized in that the carrier layer is made of methacrylate.
ES200302814A 2003-11-28 2003-11-28 MULTI-PAPER SCREEN FOR PROJECTION AND REARPROJECTION AND VISION FOR BOTH FACES. Withdrawn - After Issue ES2253046B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES200302814A ES2253046B1 (en) 2003-11-28 2003-11-28 MULTI-PAPER SCREEN FOR PROJECTION AND REARPROJECTION AND VISION FOR BOTH FACES.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES200302814A ES2253046B1 (en) 2003-11-28 2003-11-28 MULTI-PAPER SCREEN FOR PROJECTION AND REARPROJECTION AND VISION FOR BOTH FACES.

Publications (2)

Publication Number Publication Date
ES2253046A1 ES2253046A1 (en) 2006-05-16
ES2253046B1 true ES2253046B1 (en) 2007-07-16

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ES200302814A Withdrawn - After Issue ES2253046B1 (en) 2003-11-28 2003-11-28 MULTI-PAPER SCREEN FOR PROJECTION AND REARPROJECTION AND VISION FOR BOTH FACES.

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2370048B1 (en) * 2009-10-30 2012-10-18 François Richard Albert Cassaing RETROPROJECTION AND ASSEMBLY PROCEDURE DEVICE.

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3532337B2 (en) * 1996-02-08 2004-05-31 株式会社きもと Reflective screen for polarized projector
JP2003270725A (en) * 2002-03-14 2003-09-25 Sony Corp Screen for projection and method of manufacturing the same

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