Windows & Substrates:

Our partner Phoenix Optical Technologies Ltd (POTL) produces polished and coated windows for military and commercial applications. We operate a variety of plano polishing machines and can produce sizes up to 480mm in diameter. Our chemical strengthening of a proprietary glass has resulted in the introduction of Armourdillo Glass for impact resistant applications in protecting invaluable lives
and costly optical systems.

Materials Polished (partial list)

  • Silicon
  • Germanium
  • Fused Silica & BK7
  • Optical and Float Glass
  • Zinc Selenide, Zinc Sulfide & Cleartran®
  • IR chalcogenide glass (GASIR®, AMTIR®, IG4, IG6)
  • CaF2 & BaF2


  • Numerous Speedfam and Lapmaster Double-Sided Polishers
  • FLOW Water-Jet Profiling
  • CNC Machining & Edging
  • Chemical Glass Strengthening

We have extensive metrology to ensure the quality of our windows.  Several phase-shifting interferometers are available for in-process and final testing up to 250mm in aperture.  Our Talysurf CCI 3000A white light interferometer provides non-contact measurement of surface quality and diffractive features.

The polishing facility is supported by the in-house capabilities of Phoenix Optical Technologies to generate blanks and produce custom tooling.  Phoenix is ISO 9001:2000 certified since 1997.

For additional information please visit

ITAR NOTE:Information provided to our UK partner is in accordance with and under the authority of 22 CFR 125.4 (b)(2). It is authorized under Technical Assistance Agreement TA 03481-13, as amended by the U.S. Government for export only to the United Kingdom for use by Naked Optics Corp (herein NOC) and Phoenix Optical Glass Ltd. (herein POGL). It is not transferred to any unapproved party or otherwise be disposed of in any other country, either in their original form or after being incorporated into other end items without the prior written approval of the U.S. Department of State.