|1/25/2010||Sapphire Optics Withstand Extreme Conditions|
|Custom fabricated sapphire optics for applications in harsh environments involving high pressure, chemicals, acids, strong alkalis, and blowing dirt and sand are available from Meller Optics, Inc. of Providence, Rhode Island.
Meller Sapphire Optics are ideal for applications requiring a clear, hard material that can withstand pressures to 10,000 psi and is impervious to water, most acids, alkalis, blowing dirt and sand, and chemicals to 1,000°C. Manufactured to specification, configurations include windows, lenses, and domes in a wide range of sizes with varying thicknesses, mounting holes, slots, wedges, edge treatments, elliptical edge shaping, and A/R coatings.
Available in sizes from 1/4” to 10” dia. and 1/2 mm to 1” thick, depending upon configuration, Meller Sapphire Optics feature Moh 9 hardness which is second only to diamond. Lenses can have focal lengths from 3/4” to 1,000 mm and greater and surface finishes from 60-40 to 40-20 scratch-dig, depending upon size and configuration. Windows can be fabricated with flatness held to 0.5 fringes of HeNe and parallelism from 20 to 2 arc/secs.
Meller Sapphire Optics are priced according to configuration, size, and quantity. Literature and price quotations are available upon request.