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11/19/2013  Sapphire Optical Domes Resist Corrosion and Fast Moving Particles 
Custom fabricated sapphire domes that feature a superior combination of optical and mechanical properties for protecting guidance systems, sensors, and other devices in harsh airborne and subsea environments are available from Meller Optics, Inc. of Providence, Rhode Island.

Meller Sapphire Optical Domes feature Moh 9 hardness which is second only to diamond in terms of hardness and provide up to 85% transmission uncoated in the UV and IR, and up to 99% when anti-reflective coated on two sides. Ideally suited for protecting guidance systems in military and commercial applications, they can withstand pressure to 10,000 psi, temps. to 1000C, and are unaffected by fast moving dirt, sand, saltwater, and chemicals.

Fabricated to specification, Meller Sapphire Optical Domes are available in sizes up to 6 O.D. and can incorporate steps and profiles for mounting purposes. Offering 160 degree maximum included angles to extend the viewing angle of missile guidance systems, they exhibit surface accuracy to < 1 fringe @ 633nm and finishes to 20-10 scratch-dig per MIL-PRF-13830.

Meller Sapphire Optical Domes are priced depending upon configuration and quantity. Price quotations are provided upon request.
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