Tag Archives: sapphire substrates

SAPPHIRE SUBSTRATES PRECISE FOR OPTICAL COATERS

Sapphire substrates in various configurations posed on a green table. There are colored lights in the background.

A full line of sapphire lenses, windows, and other shapes that feature highly precise tolerances for flatness, surface finish, and parallelism have been introduced by Meller Optics, Inc. of Providence, RI. Meller Sapphire Substrates for Optical Coaters feature 1/10th per wave flatness per inch, surface finishes to 10-5 scratch-dig, and parallelism to 2 arc-sec, per […]