Multi-Point IIa Shielded Windows

Shielded windows provide protection from EMI/RFI radiation. They are recommended for use in electronic equipment that may be susceptible to EMI/RFI radiation via indicative performing or viewing devices, such as digital readouts or displays. Multi-Point IIa shielded windows come in two constructions: woven screen laminated between polycarbonate or glass and wire mesh homogeneously imbedded in molded acrylic. Each provides up to 95% optical transmissivity in viewing of characters and displays while, at the same time, dramatically attenuating EMI/RFI.

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:

  1. Windows are constructed using a full-lamination process that results in the wire mesh being completely encased. This permits operation under severe environmental conditions.
  2. Different wire mesh patterns and metal alloys allow for a selection of performance characteristics most suitable to the customer's needs.
  3. The molded plastic window substrate can be supplied in several preferred colors for improved viewing.
  4. Windows may be mounted directly to the equipment interface via a conductive gasket and fasteners, or mounted within a metallic bezel.




  14 Khz H-Field 20db
  1.0 Mhz H-Field
  1.0 Ghz Plane Wave 60db

Note: Shielding effectiveness will vary slightly depending upon wire diameter, metal alloy, and openings per inch (OPI).



Thickness of Window:

.062" to .250"
  Knitted Wire Screen: 0.0012 - 0.0022 dia. wire, 50 - 145 OPI (Std) Woven Copper or Stainless Steel, Blackened.
  Color: Clear (STD) or contrast enhancement
  Optical Finish: Anti-reflection coatings; Non-glare, various gloss levels available; Chemical and scratch resistant
  Terminations: Silver filled bus; Extended wire mesh; Compression gaskets
  Environmental: MIL-STD-202A Thermal, Vibration, Moisture,
and Temperature Cycling.
  Optical Medium: Cast Acrylic per Federal Specification L-P-391, Type 1, Grade C (Std) Glass and Polarizers (Optional).

Typical Edge Termination:

Available materials; glass, ploycarbonate, acrylic, and polarizer.

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10 Major Product Categories Multi-Point - I through IXA
I Elastomer Gasketing with Suspended Wires | II Shielded Windows/Optical Windows
III Expanded Screen & Composite Screen Gasketing | IV Aluminum Combination Gasketing
V Thermally Conductive Materials | VI Particle Filled Conductive Silicone Gasketing
VII Knitted Wire Mesh Strip & Protective Cover Gasketing | VIII Composite Shielding Strip & Gasketing
IX Shielded Air Ventilation & Air filter Panels | IXA Conductive Caulking & Adhesives

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Conductive Systems Inc.
31 Mozzone Blvd. • Taunton, MA 02780 USA
Tel: (508) 880-3880 • Fax: (508) 880-1950