Diamond Monolithic RFI Shielded Custom Optical Filters

Diamond monolithic RFI shielded filters are custom optical filters produced by deposition of thin transparent conductive coatings onto diverse substrates.

Diamond monolithic RFI shielded filters are custom optical filters produced by direct deposition of thin transparent and electrically conductive coatings onto a diversity of flat or profiled substrates. Here’s everything you need to know about these RFI shielded optical filters.

Diamond Monolithic RFI Shielded Filter Properties

Measured by use of independent (MIL-STD-285 compliant) test methods, our monolithic filters’ RFI/EMI shielding effectiveness ranges between 58dB and 26dB at 1MHz and 1GHz respectively.

In terms of spectral properties, light transmission rates depend on both the type of substrate used and the surface finish thereof.

Typical peak light transmission rates (at wavelengths ranging between 525 nm and 600nm) for 20 ohms/sq. coatings on glass with standard and index-matched Diamox coatings, for example, are 87% and 92% respectively.

For 50 ohms/sq. coatings on transparent hard-coated polycarbonate substrates, the respective typical peak light transmission rates for the standard and index-matched Diamox coatings at the same wavelength range are 85% and 89%.

Monolithic Optical Filter Applications

Combining these properties with improved mechanical and environmental stability (in comparison to laminated or edge-bonded filters), Diamond Coating’s RFI shielded optical filters are perfect for electronic display/communications applications in industries including, for example:

  • IT, Medical and Avionics
  • Radio, Telecommunications and TV
  • Automotive, Science/Research & Development and Military/Defence
  • Retail/Commercial, Industrial and more

Diamond Custom Optical Filters

Using purpose-designed, state-of-the-art coating technology/facilities, Diamond Coatings can produce both flat and profiled monolithic filters on a broad range of substrates including polycarbonates, acrylic and glass with varying surface finishes:

  • In sizes up to a maximum of 1,000 mm x 1,000 mm, and
  • With coating sheet resistances starting at 10 ohms/sq.

 

Surface finishes depend on requirements and may, for instance, consist of etched glass, hard (non-glare) coatings on polycarbonates and/or Diamox+ AR (anti-reflective) coatings.

Monolithic Filter Termination

Diamond RFI/EMI shielded monolithic filters may be terminated with silver bus bars or copper tapes, which may be carried around to front surfaces. Use of fabric over foam and conductive silicone gaskets is also possible.

Contact Us

Contact us by telephone: +44 (0) 121 550 9430/+44 (0) 8451 360 603; email or via our contact form now to learn more about our custom optical filters and/or discuss the most viable substrate, surface finish, sheet resistance & termination options for your specific application with one of our helpful technical experts.

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Talk to an Expert Today

If you are interested in any of our products or services, please use the contact form or  give us a call, we will be happy to discuss how we may be able to help you.

Diamond Coatings operate a state-of-the-art magnetron sputtering plant, equipped with clean rooms, from modern factory premises located in the heart of England, the Midlands. We provide a variety of products, namely Indium Tin Oxide (ITO), Anti-reflection (AR) coatings on plastic or glass, monolithic RFI shielding filters on plastic or glass, Touchscreens, capacitive or resistive, glass supply, mesh windows.
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