Custom built spherical lenses. Wavelengths: UV thru Far-IR. All glasses and most IR Materials. Including: Germanium, Silicon, BaF2, MgF2, CaF2, ZnSe, ZnS MS. Diameters from 0.20" - 13.0". Coatings and Fabrication performed in-house. 100% ITAR Compliant. For more info, contact Sales: [email protected].