JPH01171299A - Hue control type electromagnetic wave shielding transparent body - Google Patents

Abstract

PURPOSE:To provide color degree, reflection performance matched to the plan, intention of a building by making a body by superposing a transparent body and an electromagnetic wave shielding layer, and providing a hue/reflection- performance adjusting layer. CONSTITUTION:An electromagnetic wave shielding film 2 and a hue/reflecting- performance adjusting layer 3 are provided on a glass 1. The layer 3 is formed of a metal film of Ni, Cr or the like, or a metal oxide film of titanium oxide, aluminum oxide, etc., and exposed outside. When a heat absorbing glass made by adding small amount of metal oxide of Ni, Cr, Co, iron, etc., selenium of the like to soda lime silicate glass, instead of the glass 1, is employed, the radiation energy of the sun is absorbed by several tens % by the heat wave absorption of the added metal. Accordingly, cooling load can be absorbed. When for the glass 1, heat wave reflecting glass made of glass 7 and a reflecting layer 8 is used, the layer 8 is formed by coating the surface of the glass 7, for example, with a thin metal oxide film. When the layer 3 is provided on the outer side of an electromagnetic wave shielding transparent body, an arbitrary hue different from that of the shielding layer can be imparted.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a hue-controlled electromagnetic shielding transparent body that can have a hue different from that of an electromagnetic shielding layer.

[Conventional technology]

Intelligent buildings are representative of modern office buildings. In intelligent buildings, information and communication equipment such as complex electronic exchanges and computers are shared,
Information is communicated within the building and with the outside world, but as the sense of value for information increases and needs for information become more diverse and individualized, providing faster and more accurate information has become a major issue in large buildings. There is. To address these issues in intelligent buildings, information networks based on data highway methods using optical fiber cables and coaxial cables have been studied and proposed.

However, with the data highway method that uses optical fiber cables and coaxial cables, the optical fiber cables and coaxial cables must be stretched to every corner of an intelligent building, which requires extra labor costs and construction time to lay the cables. It will take a while.

In addition, if radio waves are used for information communication within a building, there is no need to lay cables, but in this case, on the other hand, noise radio waves are emitted to the outside, so frequencies within a certain range are subject to regulations under the Radio Law. Become.

On the other hand, there is a problem in that the system malfunctions due to external radio waves, internal television intermediate frequency waves, radio waves from wireless microphones, and the like.

The demand for wireless communication is expected to grow significantly in the future.In order to prevent mutual interference, there is technology that does not allow electromagnetic noise to be introduced into one's own building, and conversely, does not emit electromagnetic waves so as not to affect other buildings. Desired. Furthermore, technology that prevents electromagnetic waves from emitting or entering is also required in computer centers, hospitals, and AV conference rooms that handle precision electronic equipment. especially,
Recently, it has been discovered that radio waves emitted from computers and displays can be easily detected using relatively simple equipment, so the eavesdropping of radio waves leaked from electronic devices that handle information, such as computers, has become a problem.

As mentioned above, noise caused by magnetic waves has become a major social problem in recent years. Society needs technology that does not emit or let in electromagnetic waves, and those that do not emit electromagnetic waves are
The term MI (electro-magnetic interference alliance) was coined, and technological development is progressing.

Furthermore, in the area where 1i magnetic waves are not allowed to enter, the term "immiunity" (equipment is damaged by external electromagnetic noise) has been coined, and technological development is underway to prevent external electromagnetic waves from entering the building. External noise sources include trains, high-voltage lines, vehicle radios, etc. In places with poor electromagnetic environments near trains and high-voltage lines, build buildings that do not allow electromagnetic waves from these sources (
Electromagnetic wave shielding buildings) are required.

An application has already been filed for an intelligent building that uses electromagnetic wave shielding members to configure the frame and openings such as windows and doorways, making the entire building an electromagnetic wave shielding structure that enables communication within the building using electromagnetic waves. In this intelligent building, electromagnetic waves are shielded throughout the building by using mesh-filled glass or glass covered with conductive film for the windows and entrances and exits of the building. An example of ensuring the electromagnetic wave shielding performance of a window by using mesh-filled glass, glass with a conductive film attached, etc. (Japanese Patent Laid-Open No. 112886/1986) will be described below.

FIGS. 4 and 5 are diagrams for explaining an example of a method of shielding electromagnetic waves from a glass window. In the figure, 41 and 46 are window glasses, 42 and 47 are electromagnetic shielding layers, 43 is conductive paint, and 44
45 is a conductive rubber, and 45 is a sash.

In FIG. 4, a window glass 41 has an electromagnetic wave shielding layer 42 made of a conductive material such as a mesh or a film therein, and a conductive paint is applied to the ends thereof. The conductive rubber 44 compresses and fixes the window glass 41 to the conductive sash 45, and the conductive paint 43 and the conductive rubber 44 improve the conductivity between the electromagnetic wave shielding N42 of the window glass 41 and the sash 45. is ensured. In particular, conductive rubber 4
By compressing and fixing the window glass 41 with 4, the conductive paint 4 is electrically connected to the electromagnetic wave shielding 1542.
The contact pressure between 3 and the conductive rubber 44 becomes sufficiently large,
Similarly, the contact pressure between the sash 45 and the conductive rubber 44 is sufficiently large (so that the contact resistance is small and sufficient conductivity can be obtained).

The example shown in FIG. 5 is an example in which a metal is vacuum-deposited on the window glass 46 using sputtering or other techniques, or a conductive film is attached to form an electromagnetic wave shielding layer 47. In this case, since the electromagnetic wave 'aGN47 is present on the surface of the window glass 46, the electromagnetic wave shielding layer 47 can be directly applied without applying the conductive paint 43 to the edge as shown in FIG.
The conductivity between the conductive rubber 44 and the conductive rubber 44 can be ensured.

FIG. 6 is a diagram for explaining one embodiment of the method of grounding the sash frame, in which 51 shows the sash frame, 52 shows the sash anchor, 53 shows the embedded anchor, 54 shows the reinforcing bar, 55 shows the mortar, and 56 shows the frame. .

In FIG. 6, reinforcing bars 54 are used to reinforce the concrete of the frame 56, and are ultimately grounded through these reinforcing bars 54. Therefore, the embedded anchor 53 is embedded in the concrete of the frame 56 by integral casting, and an earth bond is established with the reinforcing bar 54 to the embedded anchor 53. Therefore, by welding the embedded anchor 53 from the sash frame 51 at one or more locations, the conductivity from the sash frame 51 to the reinforcing bars can be improved, and the electromagnetic wave shielding performance of the entire window can be improved.

[Problem that the invention seeks to solve]

By the way, electromagnetic shielding transparent bodies made of transparent bodies such as glass with a metal coating on their surfaces have various hues and reflective colors depending on the type, amount, thickness, stabilization treatment, etc. of the metal coated. The original transparency,
The transmittance and reflectance of light are different. If used as a building window in this state, the function as an electromagnetic wave shielding building will be maintained, but the indoor living environment may deteriorate and the building may not meet the original design intention.

The present invention solves the above-mentioned problems, and aims to provide a hue-controlled electromagnetic wave shielding transparent body that can have a color tone and reflective performance that match the plan and intention of the building. be.

[Means for solving problems]

To this end, the hue control type electromagnetic wave shielding transparent body of the present invention is characterized in that the electromagnetic wave shielding transparent body is constituted by stacking a transparent body and an electromagnetic wave shielding layer, and has a hue/reflection performance adjusting layer.

[Effect]

In the hue control type electromagnetic wave shielding transparent body of the present invention, an arbitrary hue different from the color layer obtained by the electromagnetic wave shielding layer can be imparted by the hue/reflection performance adjusting layer, so that the color matches the plan and intention of the building. Depending on the situation, it can have reflective properties.

〔Example〕

Examples will be described below with reference to the drawings.

FIG. 1 shows one of the hue control type electromagnetic wave shielding transparent bodies according to the present invention.
1 is a diagram showing an example, 1 is transparent glass, 2.5 and 9 are electromagnetic wave shielding films, 3.6 and 10 are tint/reflection performance adjustment layers,
4 is a heat ray absorbing glass, 7 is a glass, and 8 is a reflective layer.

Figure 1+al shows a case in which a tint/reflection performance adjusting layer 3 is placed on an electromagnetic shielding transparent body consisting of a transparent glass 1 and an electromagnetic shielding film 2;・This is an example in which the reflective performance adjustment layer 3 is arranged.
The reflection performance adjusting layer 3 is formed of a metal film such as nickel or chromium, or a metal oxide film such as titanium oxide or aluminum oxide, and is disposed on the outside.

Figure 1 (C1, (dl is the transparent glass 1 shown in the same figure (al)
This is an example in which a heat ray absorbing glass 4 is used instead of the glass. Because it absorbs several tens of percent of the sun's radiant energy by absorbing heat rays, it can absorb the cooling load. In addition, since direct sunlight from the window is moderately reduced, the room temperature can be uniformized and the indoor environment can be improved.

In addition, this is an example in which the transparent glass 1 shown in FIGS. It is formed by coating the surface of

If the hue caused by the electromagnetic wave shielding layer does not harmonize with the design of the building or the surroundings, by providing the hue/reflection performance adjustment layer 3 on the outside of the electromagnetic wave shielding transparent body as described above, it is possible to create a color that is different from the hue caused by the electromagnetic wave g cocoon layer. can be given a hue of

By the way, when imparting electromagnetic wave shielding performance to glass, it has been conventional to sandwich a cloth-like fabric woven from thin wires that has electromagnetic wave shielding performance between two pieces of glass, or to use a film with a certain degree of thickness. A metal film is attached to the glass surface. In order to improve the electromagnetic wave shielding performance of a window opening using such glass, it is generally necessary to increase the thickness of the electromagnetic wave shielding layer. However, the electromagnetic wave shielding performance is inversely proportional to the resistance value of the electromagnetic wave shielding surface. Therefore, when the film thickness is increased, the electromagnetic wave shielding performance increases, but the sunlight transmission performance decreases. Therefore, in order to improve the electromagnetic wave shielding performance, the sunlight transmission performance must be sacrificed, and there is a problem in that if the sunlight transmission performance is to be ensured, sufficient electromagnetic wave shielding performance cannot be obtained.

Therefore, an example of an electromagnetic wave shielding layer that can ensure sufficient electromagnetic wave shielding performance and sunlight transmission performance even if the electromagnetic wave shielding layer is composed of a thin film will be described.

FIG. 2 is a diagram showing one embodiment of the electromagnetic wave shielding layer, and 11
is an electromagnetic wave shielding film, 12 and 15 are conductive wires, 13.14.16
and 17 indicate electrodes.

In the example shown in FIG. 2 (al), the thickness of the electromagnetic shielding film 11 is made thin to ensure transmission performance, and the conductor 12 made of an edible conductive wire material such as copper or silver is divided into the electromagnetic shielding film surfaces. established,
Each of the conductive wires 12 is connected to an electrode 13,14. In this way, the surface resistance of the electromagnetic shielding layer is
Since it depends on the distance to the nearest conducting wire 12, the resistance can be further lowered and the magnetic wave shielding performance can be improved.

The example shown in FIG. 2 (bl) is one in which the surface of the electromagnetic wave shielding film is divided into mesh canes by providing not only vertically divided conductors 15 but also horizontally divided conductors 15. In this case, the conductors 12.15 are
Unlike electromagnetic wave shielding mesh, it does not itself play the role of shielding electromagnetic waves (it is intended to reduce the resistance of the surface. Therefore, unlike electromagnetic wave shielding mesh, it does not need to be densely arranged, so the surface material itself It is possible to improve the electromagnetic wave shielding performance without reducing the sunlight transmission performance of the material.

FIG. 3 is a diagram showing an example of an electromagnetic wave shielding transparent body with a multilayer structure, in which 2123.25.27.30 and 33 are electromagnetic wave shielding films, 22.24.26.28.29 and 34 are glass,
31 is a sealing member, and 32 is a sealing space.

As shown in FIG. 3, if an electromagnetic wave shielding transparent body having a multilayer structure is constructed instead of a single layer electromagnetic wave shielding layer, the electromagnetic wave shielding performance can be further improved. In the example shown in FIG. 3 (al), electromagnetic wave shielding films 21.2
3, the electromagnetic wave shielding films 21 and 23 are separated by the thickness of the glass 22.
In this case, a glass 24 is further placed on top of the electromagnetic wave shielding film 23 via an interlayer film or an adhesive layer (not shown), and the electromagnetic wave shielding film 23 is sandwiched between the glasses 22 and 24. By doing so, the electromagnetic wave shielding film 21 and 23 are separated by at least the thickness of the glass 22, and the electric current transmitted through one of the electromagnetic wave shielding films is prevented.
By absorbing/reflecting the fi waves between the electromagnetic wave shielding films 21 and 23 and attenuating the resonance, the electromagnetic wave shielding performance can be further improved than in the case of only one electromagnetic wave shielding film. Same figure (
C1 shows a cross section of a laminated glass structure having an electromagnetic wave shielding film 25, 27, a glass 26, 28, and a laminated interlayer or adhesive layer as required, as shown in the same figure (bl). The example shown is two pieces of glass 29.3
A sealing space 32 is provided by adhering the space between each glass 29 .
It is of a double-glazed type with electromagnetic wave shielding films 30 and 33 provided on the inner surface of the glass.

Therefore, in this example, the distance between the electromagnetic wave shielding films 30 and 33 can be set by the sealing member 31 regardless of the thickness of the glasses 29 and 34.

In order to increase the reflectance, the tint/reflection performance adjusting layer in the present invention may be made of a film material that has a refractive index higher than that of a transparent plate and has high chemical and physical durability, such as TiO2, Zn
A high refractive index film such as O, Alt O:+, Zr0z is used, and when the reflectance is high and the color tone is adjusted by absorption color, for example, Ag, 5tJs, Ni, Cos.
A high refractive index/absorbing film such as Aus TiNx is used. When forming such a type of tint/reflection performance adjusting layer on a transparent plate to obtain an electromagnetic wave shielding transparent body, for example, the above-mentioned high refractive index film or high refractive index/absorption film is formed on the surface of the transparent plate, and then Either an electromagnetic wave shielding layer is formed on the surface of the transparent plate, or an electromagnetic wave shielding layer is formed on the surface of the transparent plate, and a high refractive index film or a high refractive index/absorbing film is formed thereon, or a high refractive index film is formed on the transparent plate. A film or a high refractive index/absorption film is formed, and StO
A low refractive index film having a refractive index lower than that of a transparent plate such as , etc. is formed, and an electromagnetic wave shielding layer is formed thereon. Furthermore, if necessary, the electromagnetic wave shielding transparent body of the present invention can be obtained by forming a high refractive index film on the electromagnetic wave shielding layer. Of course, the layer structure is not limited to the above example, and various other structures can also be used.

In addition, the electromagnetic wave shielding layer is provided with a ground wire connection end to drop the electromagnetic waves to the ground, or a ground contact member is provided, so if the tint/reflection performance adjustment layer is insulating, these can be easily done. The electromagnetic wave shielding layer is the top layer,
That is, it is preferable to use an exposed surface.

Further, the electromagnetic wave shielding layer in the present invention uses a transparent conductive film that has conductivity and transparency and has electromagnetic wave shielding performance, such as a transparent tin oxide conductive film, a transparent indium oxide conductive film, etc. Ag.

Transparent metals or films made of metals such as T tXCr, Au, AjL Crs N+, etc. can also be used. These electromagnetic wave shielding layers may be used as a single layer, or
Alternatively, it may be used as a multilayer. In addition, in the present invention, in addition to the 1i magnetic wave shielding layer and the tint/reflection performance adjustment layer, a layer having other functions, such as a protective layer for improving durability, may be combined. It can also be formed by

Note that the present invention is not limited to the above-mentioned embodiments, and various modifications are possible.For example, although glass is used as the transparent body, it is of course possible to use resin or other transparent materials. be. The heat ray absorbing glass 4 is made by adding trace amounts of metal oxides such as nickel, chromium, cobalt, iron, selenium, etc., and is colored glass, so it is colored as shown in Fig. 1 (C
1. The tint/reflection performance adjustment layer 6 may be omitted in +DL. Similarly, heat ray reflective glass is coated with a metal oxide film with excellent heat ray reflection performance on one side of the glass using a special method. Since a unique color tone can be obtained due to the mirror effect, the hue/reflection performance adjustment JlilO may be omitted in the figure tel and (rl).

〔Effect of the invention〕

As is clear from the above description, according to the present invention, since the tint/reflection performance adjusting layer is provided on the outside of the electromagnetic wave shielding transparent body having the electromagnetic wave shielding layer, the electromagnetic wave shielding transparent body has a hue different from that of the electromagnetic wave shielding layer. It is possible to select the hue of the windows to match the design and design of the building.

[Brief explanation of the drawing]

FIG. 1 shows one of the hue control type electromagnetic wave shielding transparent bodies according to the present invention.
Figure 2 is a diagram showing an example of an electromagnetic shielding layer, Figure 3 is a diagram showing an example of a multi-layer electromagnetic shielding transparent body, and Figures 4 and 5 are glass windows. FIG. 6 is a diagram for explaining an example of a method for grounding the sash frame. 1... Transparent glass, 2.5 and 9... Electromagnetic wave shielding film,
3.6 and 10...Tint/reflection performance adjustment layer, 4...Heat ray absorbing glass, 7...Glass, 8...Reflection layer. Applicant Asahi Glass Co., Ltd. Agent Patent Attorney Ryukichi Abe (3 others) 14
Hz4 Fig. 3 (oL) (shi) Fig. 4 Fig. 5

Claims (6)

[Claims] (1) A hue-controlled electromagnetic wave-shielding transparent body comprising a transparent body and an electromagnetic wave-shielding layer stacked on top of each other, the electromagnetic wave-shielding transparent body having a hue/reflection performance adjusting layer. (2) The hue control type electromagnetic wave shielding transparent body according to claim 1, characterized in that a hue/reflection performance adjusting layer is disposed overlying the electromagnetic wave shielding layer. (3) The hue control type electromagnetic wave shielding transparent body according to claim 1, wherein the hue/reflection performance adjusting layer is disposed on the opposite side of the electromagnetic wave shielding layer. (4) The hue control type electromagnetic wave shielding transparent body according to claim 1, characterized in that a glass having a tint and reflection performance is used. (5) The hue control type electromagnetic wave shielding transparent body according to claim 4, characterized in that a heat ray absorbing glass is used. (6) The hue control type electromagnetic wave shielding transparent body according to claim 4, characterized in that a heat ray reflective glass is used.