Structure: Plano convex lens
Substrate Material: CAF2
Diameters Available: 2mm to 200mm
Diameter Tolerance: +0.00/-0.05mm or customer design
Surface Quality: 80-50,60-40,40-20,20-10,10-5
Surface Flatness: 1/4lambda or customer design
Surface Irregularity (Peak to Valley): λ/2 or customer design
Thickness tolerance: +0.00/-0.05mm
Focal length tolerance: +/-1%
Clear Aperture: >90% of Diameter
Chamfer: 0.05-0.5mmx45degree
Centration: 3 arcmin
Coating: AR,Mgf2 are on request
For more details, please visit http://www.betteroptics1.com