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Cast/Mesh windows
For the highest shielding performance a woven microstructure of mesh is bonded between two layers of glass/plastic (stepped window) or a single layer of mesh foil is fixed onto one side of the window with self-adhesive (single window). This can be done by laminating or edge bonding. The windows can be provided with a silver bus bar, a gasket or be supplied with a frame for easy mounting. Windows can optionally be provided with water seal.
Licht transmission
Opacity of mesh windows is 64,5%. A lack of available light need not be a concern, since an average pair of sunglasses allows less than 9% light to come through.
Applications
- LCD displays;
- membrane switches,
- Touch screens
- Defence / Avionics etc.
Technical details and shielding performance of mesh window
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Material
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Stainless Steel
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Phosphor Bronze
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Copper
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Conductive coating |
| Type (wires/inch) |
70
|
80
|
100
|
250
|
100
|
250
|
70
|
100
|
- |
| Wire Diameter (mm) |
0.076
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0.050
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0.050
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0.035
|
0.097
|
0.035
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0.076
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0.050 |
- |
| Nominal Aaperture (mm) |
0.287
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0.267
|
0.204
|
0.067
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0.157
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0.067
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0.287
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0.204
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- |
| Light Transmission % |
62.6
|
71
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64.5
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43.5
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38.2
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43.5
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62.6
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64.5 |
65-95% |
| Attenuation |
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Field type
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Frequency
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dB
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dB
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dB
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dB
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dB
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dB
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dB
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dB
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dB |
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H
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10 kHz
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20
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21
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22
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22
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22
|
20
|
24
|
22
|
- |
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H
|
100 kHz
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21
|
23
|
23
|
22
|
42
|
24
|
39
|
35
|
- |
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H
|
1000 kHz
|
30
|
33
|
29
|
37
|
61
|
40
|
58
|
54
|
- |
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E
|
1 MHz
|
90
|
104
|
101
|
114
|
120
|
120
|
105
|
111
|
73 |
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E
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10 MHz
|
89
|
86
|
75
|
91
|
110
|
97
|
100
|
99
|
65 |
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E
|
100 MHz
|
69
|
75
|
68
|
78
|
96
|
91
|
86
|
95
|
64 |
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P
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1 GHz
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66
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60
|
64
|
75
|
79
|
87
|
66
|
72
|
20 |
|
P
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10 GHz
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33
|
32
|
35
|
-
|
46
|
60
|
34
|
45
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- |
| See garantee |
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Stepped window
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Single window
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Window with step, silver bus bar and protection foils
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Faraday cage windows
We also manufacture ready to install Faraday cage windows. These windows guarantee high shielding performance. Faraday cage windows can be manufactured in every dimension.
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Conductive coating window
For small areas a transparent polyester foil with a highly conductive coating is commonly used. The foil is available with self adhesive or can be laminated onto glass, acrylic, polycarbonate or any other flat surface. The light transmission is 65-95%, depending on electrical conductivity (20-5 Ohm/sq). For the best chemical and mechanical durability and transparency the transparent conductive coating is sputtered directly onto glass or polycarbonate. However, a mesh foil window provides higher shielding performance than a coated window.
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Shielding performance of conductive coating window
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Technical drawing of a conductive coating window
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We accept:
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