We could manufacture kinds of optical infrared lenses, materical can be ZnS, ZnSe, CaF2, Si, Ge, MgF2, FS etc., windows, mirror, spherical lens, cylindrical lens can be produced by infrared material.
Normal specification of our infrared lenses as follow:
*Material ZnSe, Si, Ge, CaF2, MgF2, FS etc.
*Dimension tolerance +/-0.20mm
*Thickness tolerance +/-0.20mm
*Surface Quality 60-40
*Flatness λ/4 at 633nm
*Clear Aperture 80%
*Crystals directional precision 5 min
*Bevel 0.3+/-0.20mmx45 degree