Spherical Lens
Material: Ge, Si, CaF, ZnS, ZnSe, Infrared Glass, CaF2
Spherical Type: Plano-Convex, Plano-Concave, Double-Convex, Double-Concave
Diameter:f4~f200 mm
Diameter tolerance: +0.0/-0.015mm
Surface figure: <1 Lambda
Surface IRR: < Lambda/4
Surface Quality: better than 60/40
Coating: Broadband AR coating or upon request