JP2009140745A - Light-emitting glass device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve such problems that a conventional dimming glass enabling light permeability adjustable is extremely expensive because any of them uses liquid crystal as a dimming means, and the liquid crystal has to be installed at the whole face of a glass plate. <P>SOLUTION: A light-emitting glass device which forms a transparent plate glass wherein a phosphor particulate such as a rare earth oxide is dispersed in a glass base material, and in which a light-emitting source for excitation such as an ultraviolet ray light emitting diode is installed at the end edge is proposed. In this light-emitting glass device, a substantial light shielding effect can be obtained by making the phosphor emit light, a new aesthetic factor is generated by color forming of the whole plate glass, and a new added value can be created. In the case a photochromic agent and a light diffusion agent are dispersed in the transparent plate glass 1 in addition to the phosphor, in addition to the effect by the light forming of light emission of the phosphor, since a photochromic effect by the photochromic agent and a light diffusion effect by the light diffusion agent are added synergistically, the dimming effect is improved, and a visual line can be blocked superbly. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a light-emitting glass device used for a daylighting window, a partition panel, an electric signboard, a POP display, a showcase and the like of a building.

  For example, transparent glass plates used for daylight windows in buildings use the function of taking in light from the outside and the function of obtaining the view of the outside from the inside of the room, but they do not block the line of sight from outside in the summer or at night. There is a drawback that curtains, blinds, etc. are necessary to block the screen. On the other hand, frosted glass can be daylighted while blocking the line of sight, but has a drawback that a field of view cannot be obtained.

  In order to solve such a difficulty, for example, as shown in Patent Document 1 and Patent Document 2, a light control glass capable of adjusting the translucency has been proposed.

  Patent Document 1 relates to a lighting part of a building, and among the plurality of plate glasses arranged in parallel in the thickness direction, the first plate glass arranged on the outdoor side is formed of heat ray reflective glass, and from the first plate glass. The second glass plate disposed on the indoor side is composed of a light control glass that is provided with a liquid crystal film attached to the plate glass main body and can be switched between a transparent state and an opaque state.

  Patent Document 2 relates to a laminated glass having a dimming function, and forms a transparent conductive film by an ITO film on each opposing surface of a pair of substrates made of a PET film, and between the pair of transparent conductive films. In this configuration, a light control body with a liquid crystal layer interposed is sandwiched between a pair of plate glasses.

Patent Document 3 describes a light control window in which an intermediate film and a liquid crystal light control element are sandwiched between two glass plates, and heat ray shielding fine particles are contained in the intermediate film.
Japanese Patent Laid-Open No. 7-119362 Japanese Patent Laid-Open No. 2004-182484 Japanese Patent Laid-Open No. 2004-131335

In any of the above conventional techniques, liquid crystal is used as the light control means, and the liquid crystal must be provided on the entire surface of the glass plate, which is very expensive.
The present invention aims to solve this problem.

  In order to achieve the above-mentioned object, the present invention proposes a light-emitting glass device in which a transparent plate glass in which phosphor fine particles are dispersed is formed in a glass substrate, and an excitation light-emitting source is installed on the edge thereof.

  Further, in the present invention, in order to solve the above-described problems, a transparent plate glass in which fine particles of a phosphor, a photochromic agent, and a light diffusing agent are dispersed is formed in a glass substrate, and an excitation light-emitting source is formed at the edge thereof. We propose a light-emitting glass device equipped with the.

  In the present invention, it is proposed that the phosphor is a rare earth oxide in the above configuration.

  Moreover, in this invention, it is proposed that a photochromic agent shall contain silver in said structure.

  Furthermore, the present invention proposes that the light diffusing agent be calcium carbonate or kaolin in the above-described configuration.

  The present invention proposes that, in the above-described configuration, the excitation light source is an ultraviolet light emitting diode or a laser diode.

  Further, the present invention proposes that, in the above configuration, the excitation light source is a black light fluorescent lamp.

  In the light emitting glass device of the present invention, when the excitation light source is OFF, the phosphor dispersed in the plate glass does not emit light, and thus functions as a transparent glass.

  When the excitation light source is turned on, the light from the excitation light source enters the plate glass from the edge and excites the phosphors dispersed in the plate glass, so that the phosphors emit light.

  In this way, the phosphor dispersed in the transparent plate glass emits light and uniformly develops color as a whole, so that the front visibility through the plate glass deteriorates due to color development, and the line of sight can be substantially blocked, New aesthetic elements are generated by the color development.

  When the photochromic agent and the light diffusing agent are dispersed in the transparent plate glass in addition to the phosphor, in addition to the above-described effect due to the light emission of the phosphor, the photochromic effect by the photochromic agent and the light diffusing agent Since the light diffusion effect is added synergistically, the light control effect is improved and the line of sight can be blocked well.

  As the phosphor, rare earth oxides such as samarium oxide, europium oxide, cerium oxide, and erbium oxide can be used alone or in combination.

  The photochromic agent may contain silver, such as silver nanoparticles, a photochromic agent containing silver and chlorine, bromine, copper oxide, or the like.

  The light diffusing agent can be calcium carbonate or kaolin.

  The excitation light source may be an ultraviolet light emitting diode, a laser diode, or a black light fluorescent lamp.

Next, embodiments of the present invention will be described with reference to the accompanying drawings.
FIG. 1 is a front view schematically showing a light emitting glass device of the present invention, and FIG. 2 is a cross-sectional view taken along line AA of FIG.
Reference numeral 1 denotes a plate glass formed by adding phosphor fine particles such as rare earth oxides such as samarium oxide, europium oxide, cerium oxide, and erbium oxide in a glass material. The body fine particles are dispersed.

  Reference numeral 2 denotes a holding device arranged at the edge of the plate glass 1, and the excitation light source 3 is installed along the edge of the plate glass 1 in the holding device 2. In this embodiment, the excitation light source 3 is installed along each edge of the plate glass 1, but depending on the size of the plate glass 1, it can be installed only at one edge.

  In this embodiment, the excitation light source 3 is provided with a linear light source such as a black light fluorescent lamp along the edge of the plate glass 1. However, the excitation light source 3 is a dot-like light emitting diode or laser diode. In the case of a light source, these may be arranged in a line and installed along the edge of the glass sheet 1. Further, in this embodiment, the reflecting member 4 is installed so that the light flux from the excitation light source 3 can be efficiently condensed on the edge of the plate glass 1.

  In the above configuration, in the light emitting glass device of the present invention, the phosphor dispersed in the plate glass 1 does not emit light when the excitation light source 3 is OFF, so that it functions as a transparent glass.

  When the excitation light source 3 is turned on, the light from the excitation light source 3 enters the plate glass 1 from the edge and excites the phosphors dispersed in the plate glass 1, so that the phosphors emit light. Is made.

  In this way, the phosphor dispersed in the transparent plate glass 1 emits light and uniformly develops color as a whole, so that the front visibility through the plate glass 1 is deteriorated due to color development, so that the line of sight can be substantially blocked. And the appearance of color creates new aesthetic elements.

  Further, in the light emitting glass device of the present invention, when the photochromic agent and the light diffusing agent are dispersed in the transparent plate glass 1 in addition to the phosphor, in addition to the above-described effect by the light emission of the phosphor, the photochromic agent is used. Since the photochromic effect and the light diffusion effect by the light diffusing agent are synergistically added, the light control effect is improved and the line of sight can be blocked well.

  For this reason, the light emitting glass device of the present invention can be used for a lighting window, a partition panel, an electric signboard, a general POP display, a showcase, and the like. Further, for example, when applied to the side wall of a box, the colored side wall suddenly becomes transparent so that an object such as an internal doll can be seen.

  As described above, the present invention emits phosphor fine particles dispersed in a plate glass to cause color development as a whole, thereby substantially blocking the line of sight and providing a light blocking effect. It is not necessary to arrange it over the entire surface, and the function equivalent to that of the light control glass can be exhibited at a very low cost.

  In the present invention, since the phosphor emits light in this manner, a substantial light shielding effect is brought about. Therefore, a new aesthetic element is generated by the color development of the entire plate glass, and a new added value can be created.

  Further, in the light emitting glass device of the present invention, when a photochromic agent and a light diffusing agent are dispersed in a transparent plate glass in addition to the phosphor, in addition to the above-described effect of the light emission of the phosphor, the photochromic agent photo Since the chromic effect and the light diffusion effect by the light diffusing agent are synergistically added, the light control effect is improved and the line of sight can be blocked well.

It is a front view which shows typically the light emission glass apparatus of this invention. It is the sectional view on the AA line of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Plate glass 2 Holding device 3 Excitation light source 4 Reflecting member

Claims (7)

A light-emitting glass device, wherein a transparent plate glass in which phosphor fine particles are dispersed is formed in a glass substrate, and an excitation light-emitting source is installed on an edge thereof. A light-emitting glass device, wherein a transparent plate glass in which fine particles of a phosphor, a photochromic agent, and a light diffusing agent are dispersed is formed in a glass substrate, and an excitation light-emitting source is installed on an edge thereof. The luminescent glass device according to claim 1, wherein the phosphor is a rare earth oxide. The luminescent glass device according to claim 2, wherein the photochromic agent contains silver. The light-emitting glass device according to claim 2, wherein the light diffusing agent is calcium carbonate or kaolin. 3. The light emitting glass device according to claim 1, wherein the excitation light source is an ultraviolet light emitting diode or a laser diode. The luminescent glass device according to claim 1 or 2, wherein the excitation light source is a black light fluorescent lamp.

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