Spherical lens element

BK7visible

ZYGO's Optics business segment manufactures precision spheres and lenses ranging in diameter from 50 mm to 700 mm with radii from 12.7 mm to 8 meters. Our standard product line of transmission spheres is available in 100 and 150 mm clear apertures ranging in f-numbers from f/.65 to f/11 with wavefront errors of λ/10 or λ/20. Our new line of Ultrasphere™ transmission spheres is available at λ/40. Various convergers and divergers are also part of our standard product line. We are a qualified vendor for high laser fluence lenses. • Specializing in lenses up to 700 mm diameter. • Surfaces verified and radii measured using ZYGO interferometry. • Surface figure better than λ/20 available.