These shields leverage the Mohs 9 hardness of sapphire to withstand extreme thermal shock and chemical exposure, common hazards in high-power fiber and CO2 laser environments. Unlike standard protective glass, the sapphire material offers low absorption at critical laser wavelengths, which prevents the rapid deterioration of focusing optics during prolonged shifts. The components are finished with an anti-reflective coating on both sides, ensuring transmission rates exceeding 99.5% at 1.06 microns.

Designed for versatility across steel, stainless, and aluminum cutting platforms, the shields are available in 0.5-inch and 2.0-inch diameters. Each unit features a 10-5 scratch-dig surface quality to ensure minimal interference with the laser path. The Providence-based company, a division of Meller Optics, currently manages pricing and procurement through direct custom quotations.