JP3841917B2 - Reflective glass transparency adjustment structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a structure for controlling the transparency of reflective glass having a mirror effect such as heat reflective glass.
[0002]
[Prior art]
For the windows of buildings such as buildings, heat ray reflective glass that adjusts the indoor environment such as room temperature by reflecting and absorbing solar radiant heat and reduces the load on the air conditioner is generally used.
[0003]
The heat ray reflective glass has a high radiation heat blocking efficiency and has an energy saving effect. On the other hand, since the visible light transmittance is high, the room can be kept bright. In addition, the visible light reflectivity is high, so it has a mirror effect and gives a new aesthetic to the building, making it indispensable in the design of modern buildings.
[0004]
[Problems to be solved by the invention]
The mirror function of the heat-reflecting glass is that in the daytime when the outdoors are bright, the sunlight is reflected so that the inside of the room is not seen through and the outside can be seen through. However, the interior is brighter, so it cannot be seen, but the interior is completely visible from the outside and privacy cannot be protected.
[0005]
[Means for Solving the Problems]
A light source (5) for irradiating light on the surface of the reflective glass (2) is installed at the opening of a window or the like where the reflective glass (2) on which the metal thin film (3) is formed as a glass panel (4). To construct a transparency adjusting structure of the reflecting glass.
[0006]
Even at night when the indoor side becomes bright with such a configuration, the brightness of the outside of the reflective glass (2) can be ensured, and thus transparency from the outside is suppressed.
[0007]
As a unitized configuration, the two glass panels (4) are bonded to each other by a sealing material (13) with a spacer (11) interposed between the two glass panels (4, 4 '). In this way, one of the two glass panels (4, 4 ') is a reflecting glass (2) having a metal thin film (3) formed on the surface thereof. Part of the spacer (11) is composed of a prism body (1), a sash frame (12) attached to the periphery of the multilayer glass, and the reflective glass (2) through the prism body (1). And a light source (5) installed in the sash frame (12).
[0008]
With this configuration, the present invention can be configured as a window frame unit.
[0009]
In addition to the above configuration, the prism body (1) is configured as a spacer (11) interposed on at least one side of the multilayer glass, and the light source (5) is approximately the same scale as the prism body (1). It is configured as a rod-shaped light source (5). Such a configuration is intended to allow light to reach a wider reflective glass (2) surface.
[0010]
The prism body (1) has a shape to irradiate light at a wide angle, and forms a plurality of inclined surfaces on one end surface in the width direction, and forms the other end surface as a flat surface, thereby reflecting glass (2). The surface can be illuminated efficiently.
[0011]
Further, the prism body (1) is composed of a transparent long thin plate (7) having one end face in the width direction as an inclined surface (9), and the thin plate (7) laminated in the thickness direction. (1) and a reflective film (8) interposed between the thin plates (7).
[0012]
The prism body (1) can effectively guide the irradiation light to the surface of the reflection glass (2). That is, since the reflective film (8) is interposed between the thin plates (7), the variation in the incident angle of light from the light source (5) is corrected, and the thin plate (7) is irradiated with the inclined surface (9). Therefore, the transmitted light is refracted, and the light can be effectively guided to the reflecting glass (2) surface by setting in a desired direction.
[0013]
Further, in addition to the above configuration, the reflector (10) installed in the intermediate air layer (6) on the side of the side of the multilayer glass on which the light source (5) is installed, and the reflector (10 The reflective surface of the reflective glass (2) is slightly inclined to the reflective glass (2) surface side. 2) The surface can also be irradiated.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
The gist of the present invention is that the reflection glass (2) is provided with a means for irradiating light on the reflection glass (2) having a mirror effect formed by a metal thin film (3) on the glass panel (4). There is to configure.
[0015]
As such a configuration, it is possible to simply install a light source (5) such as a light that irradiates the reflective glass (2) surface from the outside, but in the present embodiment, a unit composed of a multilayer glass and a sash frame (12) The structure is suitable for buildings. Specific examples are described below.
[0016]
A metal thin film (3) is formed on one side of one glass panel (4), and constitutes a reflective glass (2). The metal thin film (3) is formed of a metal such as Au, Ag, Al, Cu, Ni, Cr, Fe, Ti, or Zr on the glass surface as a simple substance or a metal oxide thin film. As a forming method, a vacuum vapor deposition method or a sputtering method is mainly used. Since the reflective glass (2) has a function of shielding solar heat and the like, and has a high visible light reflectivity, the appearance is excellent due to the mirror effect.
[0017]
An intermediate air layer (6) is formed by adhering a spacer (11) to the entire periphery between the reflective glass (2) and the other glass panel (4 ′) to form a multilayer glass.
[0018]
Adhesion between the spacer (11) and the reflective glass (2) and the glass panel (4) usually uses a butyl-based sealing material (13), and bonds between both glass panels (4) and the spacer (11), Further, the outer periphery of the formed multilayer glass is sealed. Thereby, the sealed state of the intermediate air layer (6) is maintained.
[0019]
The spacer (11) is composed of a commonly used aluminum cylinder excluding the spacer (11) interposed at the upper edge of the multilayer glass, and is on the surface facing the intermediate layer of the cylinder. Has a slit, and a desiccant is contained in the spacer (11). With this configuration, the intermediate layer is kept dry.
[0020]
The spacer (11) interposed at the upper edge of the multilayer glass is a rod-shaped prism body (1). The prism body (1) uses acrylic, glass or the like. Hereinafter, various configurations of the prism body (1) will be described.
[0022]
Since this embodiment is a configuration in which the prism body (1) is formed on the upper edge of the multilayer glass, the cross-sectional shape of the prism body (1) shown in the figure is a shape assuming all downward irradiation. It is.
[0023]
As a second example of the prism body (1), the prism body (1) is constituted by a thin plate (7) having one end surface in the width direction as an inclined surface (9). The thin plate (7) uses glass, acrylic or the like. When light is introduced from the other end surface of the thin plate (7) that is not inclined, the transmitted light is refracted by the inclined one end surface (FIG. 3). A plurality of such thin plates (7) are stacked in the thickness direction, and a reflective film (8) is interposed between the thin plates (7) to constitute the prism body (1). The reflective film (8) is formed in the same manner as the metal thin film (3) used to construct the reflective glass (2). With such a configuration, the irradiation light can be effectively guided to the panel surface. Further, by changing the thickness of the thin plate (7) and the angle of the inclined surface (9), the amount of light and the angle can be adjusted to effectively irradiate far.
[0024]
As a third example of the prism body (1), a plurality of protrusions in the length direction are formed on the surface of the rod-shaped prism body (1) facing the intermediate air layer (6). With this configuration, although there is no reflective film (8), the same effect as in the second example can be obtained. In addition, changing the width of the protrusion and the angle of the inclined surface (9) to be formed is the same as in the second example.
[0025]
A sash frame (12) is attached to the periphery of the multi-layer glass constructed as described above. The sash frame (12) is a commonly used aluminum, wooden or the like.
[0026]
A light source (5) for irradiating light into the intermediate air layer (6) through the prism body (1) is disposed in a sash frame (12) attached to the upper edge of the multilayer glass. As the light source (5), a linear light source (5) (fluorescent lamp or the like) substantially the same scale as the rod-shaped prism body (1) is used. In addition, the structure etc. which arrange | position an electric light bulb etc. may be sufficient.
[0027]
A long reflector (10) is installed below the intermediate air layer (6), and the reflector (10) is inclined slightly toward the panel surface to be irradiated. With such a configuration, it is possible to effectively irradiate the surface of the reflective glass (2) farthest from the light source (5).
[0028]
In this embodiment, the prism body (1) and the light source (5) are arranged on the upper edge of the multi-layer glass, but the present invention is not limited to this, and the lower edge and the side edge may be used. It is configurable. Further, in addition to the configuration in which one side of the multi-layer glass is a prism body (1) as in this embodiment, it may be formed in a part or a plurality of locations.
[0030]
【The invention's effect】
According to the present invention, it is possible to protect privacy without seeing the room from the outside even at night when the room is brighter than the outside. In addition, a unitized sash frame suitable for buildings such as easy installation can be configured.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing an embodiment of the present invention.
FIG. 2 is a cross-sectional view of a prism body composed of a thin plate and a reflective film.
FIG. 3 shows a cross section of a thin plate and transmission of light.
FIG. 4 is a cross-sectional view of a prism body composed of thin plates having different thicknesses.
FIG. 5 is a cross-sectional view of another embodiment of the prism body.
FIG. 6 is a cross-sectional view showing an embodiment in which a prism body has a lens shape.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Prism body 2 Reflective glass 3 Metal thin film 4, 4 'Glass panel 5 Light source 6 Intermediate air layer 7 Thin plate 8 Reflective film 9 Inclined surface 10 Reflector 11 Spacer 12 Sash frame 13 Sealing material 14 Light

Claims (2)

Two glass panels, a multi-layer glass in which an intermediate air layer is formed by adhering with a sealing material with a spacer interposed between the peripheral edges of the two glass panels, and one of the two glass panels is an intermediate A reflective glass in which a metal thin film is formed over the entire surface on the air layer side, and a spacer interposed between at least one side of the multilayer glass among the spacers is constituted by a prism body, An attached sash frame, and a rod-shaped light source of approximately the same scale as the prism body installed in the sash frame above the multilayer glass to irradiate the reflective glass through the prism body, The prism body has a plurality of inclined surfaces on one end surface in the width direction, and the other end surface is formed as a flat surface. See-adjusting structure of the reflective glass, characterized in that formed in a shape to induce the. 2. The reflection according to claim 1, wherein the prism body is formed by laminating a thin plate formed with an inclined surface on one end surface in the width direction and a flat surface on the other end surface, and a reflection film. Glass transparency adjustment structure.

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