Meller Optics Sapphire Viewport Windows Fabricated for a Reliable Seal

PROVIDENCE, RI--(Marketwired - Jul 9, 2013) - Meller Optics, Inc. has introduced custom engineered and fabricated sapphire viewport windows that can be metalized, brazed and sealed into Kovar^® and stainless steel sleeves to assure a reliable seal.

Meller Sapphire Viewport Windows feature Moh 9 hardness, which is second only to diamond, and can operate from UHV to 10,000 psi at temperatures from cryogenic to 1,000°C, depending upon configuration. Custom fabricated to assure a reliable seal, they are manufactured to specification with stepped edges and elliptical edge shaping, holes, slots, and wedges for mounting.

Available in flat and spherical configurations from 1/4" to 10" dia. and 1/2 mm to 1" thick with A/R coatings, Meller Sapphire Viewport Windows feature flatness of 0.5 fringes HeNe and parallelism from 20 to 2 arc/secs. Resistant to chemicals (fluorine to 300°C) and most acids, these sapphire viewports are impervious to water, blowing dirt, and sand.

Meller Sapphire Viewport Windows are priced according to configuration, size, and quantity. Price quotations and complete material specifications are avail-able upon request.

About Meller Optics, Inc.

Founded in 1921, Meller Optics has been providing high quality optics to defense, medical, laser, and industrial markets for 90 years now. Specializing in the grinding and polishing of hard, durable materials such as sapphire and ruby, the company has also developed high-speed, low-cost finishing processes for a variety of optical materials such as laser glasses, fused silica, zinc selenide, germanium, silicon, fluorides, and ceramic materials. Configurations include windows, substrates, lenses, domes, and prisms.

Meller Optics is ISO 9001:2008 certified and in addition to providing standard, off-the-shelf products, they custom fabricate components that meet exacting specifications from delicate, difficult to work with optical materials. They also supply quality Microlux Alumina polishing abrasives and Gugolz optical polishing pitch.