SAPPHIRE LENSES & WINDOWS FOR EXTREMELY DEMANDING ENVIRONMENTS

Custom fabricated sapphire optics for use as sight windows in high temperature furnaces, cryogenic processes, fluid-, powder-, and solids processing and as sensor protection in demanding environments have been introduced by Meller Optics, Inc. of Providence, Rhode Island.

Meller Sapphire Optics can be fabricated in various shapes, sizes, and opening styles which can incorporate stepped edges and elliptical edge shaping, holes, slots, and wedges for mounting, plus A/R coatings. Ideally suited for extremely demanding environments, they can withstand from UHV to 10,000 psi and cryogenic to 1,000°C, depending upon configuration.

Impervious to fast moving fluids, particles, and most chemicals including fluorine to 300°C, Meller Sapphire Optics feature Mohs 9 hardness which is second only to diamond. Surface finishes can range from 60-40 to 40-20 scratch-dig, flatness can be held to 0.5 fringes of HeNe, and parallelism from 20 to 2 arc/secs.

Meller Sapphire Sight Windows are priced according to configuration and customer requirements. Price quotations are available upon request.