New custom fabricated sapphire lenses that resist scratching, high pressures, and high temperatures typical of environments in which robotics often function have been introduced by Meller Optics, Inc.

Meller Optics, Inc. has introduced custom fabricated sapphire lenses that resist scratching, high pressures, and high temperatures typical of environments in which robotics often function.

Meller Sapphire Lenses feature Mohs 9 hardness, which is second only to diamond, and are impervious to water, most acids and chemicals, abrasion caused by fast moving particulates, temperatures to 1,000°C, and pressures to 10,000 psi. Custom fabricated in sizes from 3/8" to 4" dia. and varying wall thicknesses with ±0.001" tolerances, they can be supplied in plano-convex, plano-concave, meniscus, and dome configurations.

Available with various coatings to meet specific transmission requirements,
Meller Sapphire Lenses have surface finishes from 60-40 to 40-20 scratch-dig, flatness held to 0.5 fringes of HeNe, and parallelism from 20 to 2 arc/secs., depending upon configuration. Beveled and polished edges, and other modifications to OEM specifications can be provided.