Request InfoMeller Optics Inc.PROVIDENCE, R.I., June 25, 2010 — For military guidance and imaging systems, Meller Optics Inc. offers custom fabricated sapphire and polycrystalline spinel optics for use as viewports and front surface protection in weapons guidance systems. The company’s military optics can be custom fabricated as planoconvex, -concave and meniscus windows and domes from ½- up to 4-in. diameter with ±0.001-in. tolerances and precise edges, steps, profiles and coatings. They can be made from sapphire, which features Moh 9 hardness, high abrasion and pressure resistance to 1000 °C, and from polycrystalline spinel...See full productRelated content from Photonics MediaPRODUCTSPhotonics.com 3/1/2024Optical Polishing AbrasivesThe Microlux Powders from Meller Optics are high purity, petroleum-free alumina abrasive powders for use with all hard and soft optical materials. 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