Sunstart polishes glass, ceramic, sapphire, and hard metal materials to industry leading optical surfaces. We offer optical polishing of both common and uncommon surface geometries. ID, OD, tapered rods, flat and stepped surface polishing to better than 5/10 scratch dig are some examples of our polishing capabilities. When laser quality finish is required, Sunstart offers single and double sided polishing exceeding 1/20th of a wavelength flatness.
Surface roughness less than 3nm Ra
Surface finish better than 5um/10um scratch/dig