ES2341408B1 - LIGHTING DEVICE. - Google Patents

LIGHTING DEVICE. Download PDF

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Publication number
ES2341408B1
ES2341408B1 ES200702538A ES200702538A ES2341408B1 ES 2341408 B1 ES2341408 B1 ES 2341408B1 ES 200702538 A ES200702538 A ES 200702538A ES 200702538 A ES200702538 A ES 200702538A ES 2341408 B1 ES2341408 B1 ES 2341408B1
Authority
ES
Spain
Prior art keywords
light
lighting device
emitting diodes
light emitting
face
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.)
Expired - Fee Related
Application number
ES200702538A
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Spanish (es)
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ES2341408A1 (en
Inventor
Elias Segui Boneta
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Industrias Ramon Soler SA
Original Assignee
Industrias Ramon Soler SA
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 Industrias Ramon Soler SA filed Critical Industrias Ramon Soler SA
Priority to ES200702538A priority Critical patent/ES2341408B1/en
Priority to PCT/EP2008/061607 priority patent/WO2009037109A1/en
Publication of ES2341408A1 publication Critical patent/ES2341408A1/en
Application granted granted Critical
Publication of ES2341408B1 publication Critical patent/ES2341408B1/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21KNON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K99/00Subject matter not provided for in other groups of this subclass
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00Illuminated signs; Luminous advertising
    • G09F13/18Edge-illuminated signs
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0066Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form characterised by the light source being coupled to the light guide
    • G02B6/0068Arrangements of plural sources, e.g. multi-colour light sources
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00Light-generating elements of semiconductor light sources
    • F21Y2115/10Light-emitting diodes [LED]
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033Means for improving the coupling-out of light from the light guide
    • G02B6/005Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G02B6/0055Reflecting element, sheet or layer
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0066Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form characterised by the light source being coupled to the light guide
    • G02B6/0073Light emitting diode [LED]

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Optics & Photonics (AREA)
  • General Engineering & Computer Science (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

Dispositivo de iluminación.Lighting device.

El dispositivo de iluminación comprende una pluralidad de diodos emisores de luz (2) como fuente luminosa, y se caracteriza por el hecho de que comprende una placa transparente (1) que es iluminada por dichos diodos emisores de luz (2), definiendo dicha placa (1) una cara frontal (3), una cara trasera, y cuatro caras menores, dos laterales, una superior y una inferior, y por el hecho de que la cara trasera y tres de dichas caras menores están recubiertas por un material opaco que refleja la luz, estando situados dichos diodos emisores (2) de luz frente a la cara menor (4) libre del material opaco que refleja la luz.The lighting device comprises a plurality of light emitting diodes (2) as a light source, and characterized by the fact that it comprises a transparent plate (1) which is illuminated by said light emitting diodes (2), defining said plate (1) a front face (3), a rear face, and four minor faces, two lateral, one superior and one inferior, and for the fact that the back face and three of said minor faces are covered by an opaque material that reflects light, being said light emitting diodes (2) located in front of the smaller face (4) free of the opaque material that reflects the light.

Permite crear aparatos de iluminación sin producción de calor, agradables a la percepción directa a corta distancia y con un rendimiento lumínico aceptable.Create lighting fixtures without heat production, pleasant to direct short perception distance and with an acceptable light output.

Description

Dispositivo de iluminación.Lighting device.

La presente invención se refiere a un dispositivo de iluminación, que comprende una pluralidad de diodos emisores de luz como fuentes luminosas.The present invention relates to a lighting device, comprising a plurality of diodes light emitters as light sources.

Antecedentes de la invenciónBackground of the invention

La iluminación producida por diodos emisores de luz (LEDS) se caracteriza a nivel perceptivo por una intensa luminosidad concentrada en un punto muy pequeño. De hecho, a medida que avanza esta tecnología, se tiende a incrementar esta relación (más intensidad y más pequeño el punto emisor). Esta característica conlleva que su utilización tenga que ir acompañada de elementos accesorios que protejan la percepción directa del foco emisor.The lighting produced by emitting diodes of Light (LEDS) is characterized on a perceptual level by an intense luminosity concentrated in a very small point. In fact, custom that advances this technology, this relationship tends to increase (more intensity and smaller the emitter point). This feature It implies that its use must be accompanied by elements accessories that protect the direct perception of the emitting bulb.

Los medios utilizados normalmente para paliar estos efectos desagradables a la visión directa es la interposición de materiales difusores de la luz entre el LED y el espectador, o simplemente ubicar los aparatos de iluminación de manera que no sean susceptibles de contemplarlos directamente, como por ejemplo en techos.The means normally used to alleviate these unpleasant effects to direct vision is the interposition of light diffusing materials between the LED and the viewer, or simply place the lighting fixtures so that they are not likely to contemplate them directly, such as in roofs

Desde un punto de vista funcional, podemos dividir la iluminación producida por LEDS en dos grandes grupos.From a functional point of view, we can Divide the lighting produced by LEDS into two large groups.

El primer grupo es el formado por LEDS que producen luz sin "iluminar", es decir, sólo se iluminan ellos mismos. Esta característica los hace especialmente útiles a efectos de señalización, hasta el punto que actualmente su aplicación con este destino abarca todos los ámbitos de nuestra vida cotidiana en multitud de aparatos.The first group is formed by LEDS that they produce light without "lighting up", that is, they only light up same. This feature makes them especially useful for purposes. signaling, to the point that currently your application with This destination covers all areas of our daily lives in multitude of devices

El segundo grupo son los LEDS cuyas características de potencia y configuración permiten iluminar con mayor o menor intensidad, pero, como hemos apuntado anteriormente, debemos tomar ciertas precauciones en su aplicación a fin de no producir efectos no deseados.The second group are the LEDS whose power and configuration features allow lighting with greater or lesser intensity, but, as we have noted previously, we must take certain precautions in its application so as not to produce unwanted effects.

Algunos de los sistemas más comunes para paliar estos efectos nocivos y sus consecuencias son los siguientes:Some of the most common systems to alleviate These harmful effects and their consequences are as follows:

- interposición de pantalla difusora traslucida, que presenta el inconveniente de disminución de la eficacia luminosa y que se continúan viendo los puntos de los LEDS;- interposition of translucent diffuser screen, which has the disadvantage of decreasing light efficiency and that the points of the LEDS continue to be seen;

interposición de pantalla prismática de efectos difusores, que presenta una buena eficacia lumínica pero no es apto para visión directa;prismatic display of effects diffusers, which has a good light efficiency but is not suitable for direct vision;

- iluminación por reflexión de la luz de los LEDS sobre una pantalla opaca, que disminuye muy sensiblemente el rendimiento lumínico;- lighting by reflection of the light of the LEDS on an opaque screen, which significantly decreases the light output;

- cono parabólico alrededor del LED emisor, que presenta una iluminación eficaz, pero no es apto para visión directa;- parabolic cone around the emitting LED, which it has effective lighting, but it is not suitable for vision direct;

- aumento del numero de LEDS emisores de baja potencia en lugar de pocos de potencia alta, que aumenta sensiblemente la superficie emisora).- increase in the number of low emitting LEDS power instead of few high power, which increases significantly the emitting surface).

Descripción de la invenciónDescription of the invention

Con el dispositivo de iluminación de la invención se consiguen resolver los inconvenientes citados, presentando otras ventajas que se describirán.With the lighting device of the invention manages to solve the aforementioned drawbacks, presenting other advantages that will be described.

El dispositivo de iluminación de la presente invención comprende una pluralidad de diodos emisores de luz como fuente luminosa, y se caracteriza por el hecho de que comprende una placa transparente que es iluminada por dichos diodos emisores de luz, definiendo dicha placa una cara frontal y una cara trasera, y cuatro caras menores, dos laterales, una superior y una inferior, y por el hecho de que la cara trasera y tres de dichas caras menores están recubiertas por un material opaco que refleja la luz, estando colocados dichos diodos emisores de luz frente a la cara menor libre del material opaco que refleja la luz.The lighting device of the present invention comprises a plurality of light emitting diodes as light source, and is characterized by the fact that it comprises a transparent plate that is illuminated by said emitting diodes of light, said plate defining a front face and a rear face, and four minor faces, two lateral, one superior and one inferior, and by the fact that the back face and three of said minor faces they are covered by an opaque material that reflects the light, being said light emitting diodes placed in front of the free minor face of the opaque material that reflects the light.

Preferentemente, dichos diodos emisores de luz son de colores diferentes, rojos, verdes y azules alternados entre si. De esta manera se consigue que el dispositivo de la presente invención emita luz de cualquier color, combinando estos colores básicos.Preferably, said light emitting diodes they are different colors, red, green and blue alternated between yes. In this way it is achieved that the device of the present invention emits light of any color, combining these colors basic.

Ventajosamente, dichos diodos emisores de luz están colocados alineados frente a una de las caras laterales de la placa transparente.Advantageously, said light emitting diodes they are placed aligned in front of one of the side faces of the transparent plate

Además, la cara frontal de dicha placa transparente puede comprender un margen también recubierto con un material opaco que refleja la luz, siendo dicho margen más ancho en el lado de dicha cara frontal adyacente a la cara lateral frente a la cual están colocados dichos diodos emisores de luz.In addition, the front face of said plate transparent can comprise a margin also coated with a opaque material that reflects the light, said margin being wider in the side of said front face adjacent to the side face facing which are placed said light emitting diodes.

Según una realización preferida, dicho material opaco que refleja la luz es pintura blanca y dicha placa transparente es de metacrilato.According to a preferred embodiment, said material opaque that reflects the light is white paint and said plate transparent is methacrylate.

El objetivo del dispositivo de iluminación de la presente invención es encontrar un sistema de iluminación fría por medio de LEDS que produzca una intensidad suficiente, equilibrada, con una óptima percepción directa del foco emisor.The purpose of the lighting device of the present invention is to find a cold lighting system by LEDS medium that produces a sufficient, balanced intensity, with an optimal direct perception of the emitting focus.

Gracias al dispositivo de la presente invención se consiguen crear aparatos de iluminación sin producción de calor, agradables a la percepción directa a corta distancia (20 cm) y con un rendimiento lumínico aceptable.Thanks to the device of the present invention you can create lighting devices without heat production, pleasant to direct perception at close range (20 cm) and with an acceptable light output.

Por lo tanto, las ventajas que presenta la presente invención son las siguientes:Therefore, the advantages of the Present invention are as follows:

- se consigue una difusión uniforme de la luz sin que se observen los LEDS emisores;- a uniform diffusion of light is achieved without observing the emitting LEDS;

- se consigue un sistema compacto, modulable y versátil; y- a compact, modular system is achieved and versatile; Y

- su calidad de iluminación es aceptable a una distancia de hasta 2 metros aproximadamente.- its lighting quality is acceptable at distance of up to 2 meters approximately.

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Breve descripción de los dibujosBrief description of the drawings

Para mejor comprensión de cuanto se ha expuesto se acompañan unos dibujos en los que, esquemáticamente y tan sólo a titulo de ejemplo no limitativo, se representa un caso práctico de realización.For a better understanding of how much has been exposed Some drawings are accompanied in which, schematically and only to title of non-limiting example, a practical case of realization.

La figura 1 es una vista en perspectiva del dispositivo de iluminación de la presente invención; yFigure 1 is a perspective view of the lighting device of the present invention; Y

La figura 2 es una vista lateral de una tira de LEDs que forman parte del dispositivo de iluminación de la presente invención.Figure 2 is a side view of a strip of LEDs that are part of the lighting device of the present invention.

       \vskip1.000000\baselineskip\ vskip1.000000 \ baselineskip
    
Descripción de una realización preferidaDescription of a preferred embodiment

Tal como se puede apreciar en la figura 1, el dispositivo de iluminación de la presente invención está formado por una placa transparente, indicada en general mediante la referencia numérica 1, la cual es iluminada por una pluralidad de diodos emisores de luz o LEDs 2.As can be seen in Figure 1, the lighting device of the present invention is formed by a transparent plate, indicated in general by reference number 1, which is illuminated by a plurality of diodes light emitters or LEDs 2.

Dicha placa transparente 1 es preferiblemente de metacrilato y está recubierta con un material opaco que refleja la luz excepto en su cara frontal 3 y en una de sus caras laterales 4. Dicho material opaco que refleja la luz es preferiblemente pintura blanca.Said transparent plate 1 is preferably of methacrylate and is coated with an opaque material that reflects the light except on its front face 3 and on one of its side faces 4. Said opaque material that reflects the light is preferably paint white

Dichos LEDs 2 están dispuestos alineados y son de colores diferentes, en concreto son rojos, verdes y azules, y están alternados entre si, de manera que se puede iluminar con cualquier color deseado a partir de estos colores primarios.These LEDs 2 are arranged aligned and are of different colors, specifically they are red, green and blue, and are alternated with each other, so that it can be illuminated with Any desired color from these primary colors.

La cara frontal 3 también comprende material opaco que refleja la luz, formando un margen 5, el cual es más ancho en el lado situado adyacente a la cara lateral 4 iluminada por dichos LEDs 2.The front face 3 also comprises material opaque that reflects the light, forming a margin 5, which is wider on the side located adjacent to the side face 4 illuminated by said LEDs 2.

Si se desea, el dispositivo de iluminación de la presente invención puede ser modular, es decir, se pueden unir varias placas transparentes 1 entre si, formando un único dispositivo.If desired, the lighting device of the The present invention can be modular, that is, they can be attached several transparent plates 1 with each other, forming a single device.

A modo de ejemplo no limitativo se indican las dimensiones de dicha placa transparente 1.By way of non-limiting example, the dimensions of said transparent plate 1.

Dichas dimensiones son:These dimensions are:

- Altura: 660 mm.- Height: 660 mm.

- Anchura: 95 mm.- Width: 95 mm.

- Espesor: 8 mm.- Thickness: 8 mm.

- Anchura máxima del marco de la cara frontal: 18 mm.- Maximum width of the front face frame: 18 mm

Es evidente que las dimensiones de dicha placa transparente 1 pueden ser cualesquiera mientras se consiga el grado de iluminación deseado.It is evident that the dimensions of said plate transparent 1 can be any as long as the grade is achieved of desired lighting.

Tal como se ha indicado anteriormente, con el dispositivo de la presente invención se consigue una iluminación deseada en aproximadamente unos 2 metros, sin que el usuario vea los puntos de luz.As indicated above, with the device of the present invention illumination is achieved desired in about 2 meters, without the user seeing the points of light

Además, el dispositivo de la presente invención es extremadamente ligero, y puede adaptarse a otros elementos fácilmente. Por ejemplo, es un dispositivo idóneo para aplicaciones en apliques de pared, paneles modulares, plafones de techo, cromoterapia, e iluminación arquitectónica.In addition, the device of the present invention It is extremely light, and can adapt to other elements easily. For example, it is an ideal device for applications in wall sconces, modular panels, ceiling panels, chromotherapy, and architectural lighting.

A pesar de que se ha hecho referencia a una realización concreta de la invención, es evidente para un experto en la materia que el dispositivo de iluminación descrito es susceptible de numerosas variaciones y modificaciones, y que todos los detalles mencionados pueden ser substituidos por otros técnicamente equivalentes, sin apartarse del ámbito de protección definido por las reivindicaciones adjuntas.Although reference has been made to a Concrete embodiment of the invention is evident to an expert in the matter that the described lighting device is susceptible of numerous variations and modifications, and that all the details mentioned can be substituted by others technically equivalent, without departing from the scope of protection defined by the attached claims.

Claims (8)

1. Dispositivo de iluminación, que comprende una pluralidad de diodos emisores de luz (2) como fuente luminosa, caracterizado por el hecho de que comprende una placa transparente (1) que es iluminada por dichos diodos emisores de luz (2), definiendo dicha placa (1) una cara frontal (3), una cara trasera, y cuatro caras menores, dos laterales, una superior y una inferior, y por el hecho de que la cara trasera y tres de dichas caras menores están recubiertas por un material opaco que refleja la luz, estando situados dichos diodos emisores (2) de luz frente a la cara menor (4) libre del material opaco que refleja la luz.1. Lighting device, which comprises a plurality of light emitting diodes (2) as a light source, characterized in that it comprises a transparent plate (1) that is illuminated by said light emitting diodes (2), defining said plate (1) a front face (3), a rear face, and four minor faces, two lateral ones, a superior one and a lower one, and by the fact that the rear face and three of said minor faces are covered by an opaque material which reflects the light, said light emitting diodes (2) being located in front of the smaller face (4) free of the opaque material that reflects the light. 2. Dispositivo de iluminación según la reivindicación 1, caracterizado por el hecho de que dichos diodos emisores de luz (2) son de colores diferentes.2. Lighting device according to claim 1, characterized in that said light emitting diodes (2) are of different colors. 3. Dispositivo de iluminación según la reivindicación 2, caracterizado por el hecho de que dichos diodos emisores de luz (2) son rojos, verdes y azules alternados entre sí.3. Lighting device according to claim 2, characterized in that said light emitting diodes (2) are red, green and blue alternating with each other. 4. Dispositivo de iluminación según cualquiera de las reivindicaciones anteriores, caracterizado por el hecho de que dichos diodos emisores de luz (2) están colocados alineados frente a una de las caras laterales (4) de la placa transparente (1).4. Lighting device according to any of the preceding claims, characterized in that said light emitting diodes (2) are positioned aligned in front of one of the side faces (4) of the transparent plate (1). 5. Dispositivo de iluminación según la reivindicación 1, caracterizado por el hecho de que la cara frontal (3) comprende un margen (5) también recubierto con un material opaco que refleja la luz.5. Lighting device according to claim 1, characterized in that the front face (3) comprises a margin (5) also coated with an opaque material that reflects the light. 6. Dispositivo de iluminación según las reivindicaciones 4 y 5, caracterizado por el hecho de que dicho margen (5) es más ancho en el lado de dicha cara frontal (3) adyacente a dicha cara lateral (4) frente a la cual están colocados dichos diodos emisores de luz (2).6. Lighting device according to claims 4 and 5, characterized in that said margin (5) is wider on the side of said front face (3) adjacent to said side face (4) in front of which they are placed said light emitting diodes (2). 7. Dispositivo de iluminación según la reivindicación 1, caracterizado por el hecho de que dicho material opaco que refleja la luz es pintura blanca.7. Lighting device according to claim 1, characterized in that said opaque material that reflects the light is white paint. 8. Dispositivo de iluminación según la reivindicación 1, caracterizado por el hecho de dicha placa transparente (1) es de metacrilato.8. Lighting device according to claim 1, characterized in that said transparent plate (1) is made of methacrylate.
ES200702538A 2007-09-20 2007-09-28 LIGHTING DEVICE. Expired - Fee Related ES2341408B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
ES200702538A ES2341408B1 (en) 2007-09-28 2007-09-28 LIGHTING DEVICE.
PCT/EP2008/061607 WO2009037109A1 (en) 2007-09-20 2008-09-03 Led surface lighting device using edge-illuminated light-guide plate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES200702538A ES2341408B1 (en) 2007-09-28 2007-09-28 LIGHTING DEVICE.

Publications (2)

Publication Number Publication Date
ES2341408A1 ES2341408A1 (en) 2010-06-18
ES2341408B1 true ES2341408B1 (en) 2011-02-10

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ES200702538A Expired - Fee Related ES2341408B1 (en) 2007-09-20 2007-09-28 LIGHTING DEVICE.

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WO (1) WO2009037109A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2574755B1 (en) * 2016-03-16 2017-03-23 Vitrallart, S.L. Luminous panel

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4714983A (en) * 1985-06-10 1987-12-22 Motorola, Inc. Uniform emission backlight
JP3187280B2 (en) * 1995-05-23 2001-07-11 シャープ株式会社 Surface lighting device
SE512755C2 (en) * 1997-07-08 2000-05-08 Lisol Scandinavia Ab Illuminated display unit and method of manufacturing the same
TW500962B (en) * 1999-11-26 2002-09-01 Sanyo Electric Co Surface light source and method for adjusting its hue
JP4133663B2 (en) * 2003-07-30 2008-08-13 三菱電機株式会社 Planar light source device and display device including the device

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ES2341408A1 (en) 2010-06-18
WO2009037109A1 (en) 2009-03-26

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