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1/5/2012  Sapphire Windows Clear as Glass in Large Sizes 
 
Custom fabricated sapphire windows and lenses that transmit from the UV to the IR and are impervious to most chemicals, water, and fast moving dirt and sand are available from Meller Optics, Inc. of Providence, Rhode Island.

Meller Sapphire Optics can be produced in sizes up to 10 dia., depending upon the diameter to thickness aspect ratio, and are impervious to most chemicals, water, and fast moving particles. Featuring transmission from the UV to IR (270 nm to 4.7 microns), they are clear as glass and second only to diamond in hardness (Moh 9), and can withstand up to 1,000C.

Suitable for use as protective front surface optics and as viewports, Meller Sapphire Optics provide flatness to 1/10th wave in the visible and < 2 arc sec. in./in. parallelism with finishes from 60-40 to 40-20 scratch-dig, depending upon size and construction. Applications include viewing optics in cameras, weapons, and refractometers, and as machine inspection windows.

Meller Sapphire Optics are priced according to configuration and quantity. Literature and price quotations are available upon request.
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