Material: Ge, Si, ZnS, ZnSe, Chalcogenide glass, CaF2, MgF2,Aluminum
Lens type: window, spherical, aspheric, dome, mirror
Diameter: 5-300mm
Dimension tolerance:+/-0.02
Surface quality: 40-20
Form error: PV 0.3um or irregularity 0.3 fringe.
Zygo interferometer, Profilemeter, and Zeiss CMM machine to test lens quality.
Irregularity shape is also available per drawing.