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General:
In many instances electronic
equipment with various indicative type performance or viewing devices, such as
digital read-outs or displays (including touch-screens), require protection
from radiated electrical energy (EMI/RFI).
CSI has developed a wide
range of shielded optical windows which consist of both woven screen laminated
between polycarbonate or glass and knitted wire-mesh homogeneously imbedded in
a clear or colored acrylic substrate. These unique windows are designed to
allow up to 95% clarity in viewing characters or displays while, at the same
time, introducing a high degree of shielding, thus preventing equipment damage
due to impinging radiated electrical energy.
Key Features:
- Windows are
constructed using a full-lamination process that results in the wire mesh being
completely encased. This permits operation under severe environmental
conditions.
- Different wire mesh
patterns and metal alloys allow for a selection of performance characteristics
most suitable to the customer's needs.
- The molded plastic
window substrate can be supplied in several preferred colors for improved
viewing.
- Windows may be mounted
directly to the equipment interface via a conductive gasket and fasteners, or
mounted within a metallic bezel.
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Performance: |
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Electrical: |
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14 Khz |
H-Field |
20db |
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1.0 Mhz |
H-Field
E-Field |
25dB
80db |
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1.0 Ghz |
Plane
Wave |
60db |
Note: Shielding
effectiveness will vary slightly depending upon wire diameter, metal alloy, and
openings per inch (OPI).
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Mechanical: |
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Thickness of
Window: |
.062"
to .250" |
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Knitted
Wire Screen: |
0.0012
- 0.0022 dia. wire, 50 - 145 OPI (Std) Woven Copper or Stainless Steel,
Blackened. |
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Color: |
Clear
(STD) or contrast enhancement |
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Optical
Finish: |
Anti-reflection coatings; Non-glare, various gloss levels
available; Chemical and scratch resistant |
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Terminations: |
Silver
filled bus; Extended wire mesh; Compression gaskets |
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Environmental: |
MIL-STD-202A Thermal, Vibration, Moisture,
and Temperature
Cycling. |
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Optical
Medium: |
Cast
Acrylic per Federal Specification L-P-391, Type 1, Grade C (Std) Glass and
Polarizers (Optional). |
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Typical Edge
Termination:
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Available materials;
glass, ploycarbonate, acrylic, and polarizer.
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