Sapphire Windows feature transmitted wavefront to 1/8 wave.
October 21, 2002 - Custom Ultraflat Large Sapphire Windows offer parallelism to 2 arc sec, 20:1 aspect ratios, and surface finishes to 40-20 scratch-dig. Manufactured in sizes up to 6 in. OD ±.010 in., windows exhibit Moh 9 surface hardness for abrasion resistance. Impervious to water, most acids, alkalis, and harsh chemicals to approximately 350°C, they are suitable for use as viewports, laser windows requiring large viewing diameter, and as front surface optics.
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Original Press release
Meller Optics, Inc.
120 Corliss St.
Providence, RI, 02940
USA
Large Sapphire Windows Feature Transmitted Wavefront to 1/8 Wave
Custom fabricated sapphire windows that can now be precision polished in sizes up to 6" O.D. for use as viewports, laser windows requiring a large viewing diameter with minimum beam distortion, and as front surface optics are being introduced by Meller Optics, Inc. of Providence, Rhode Island.
Meller Ultraflat Large Sapphire Windows feature transmitted wavefront to 1/8 wave, parallelism to 2 arc-sec, 20:1 aspect ratios, and surface finishes to 40-20 scratch-dig. Manufactured to customer specifications in sizes up to 6" O.D. ±.010", these windows are being offered for the first time, with these specifications, claims the firm.
Available in prototype through production quantities, Meller Ultraflat Large Sapphire Windows exhibit Moh 9 surface hardness for abrasion resistance, which is second only to diamond. Impervious to water, most acids, alkalis, and harsh chemicals to approx. 350°C, they are ideal for hostile military and commercial environments.
Meller Ultraflat Large Sapphire Windows are priced according to size and quantity. Literature and price quotations are available upon request.
For more information contact:
Meller Optics, Inc.
Steve Lydon, Marketing
120 Corliss St. / P.O. Box 6001
Providence, RI 02940
(800) 821-0180 FAX (401) 331-0519
e-mail: sales@melleroptics.com
www.melleroptics.com
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