Achromatic Lens
Diameter Available 3mm – 70.80mm
Diameter |Tolerance 0/0.05mm
Thickness Tolerance /0.05mm
Focal Length Tolerance /-2%
Surface Accuracy L/4 irregularity @632.8nm
Surface Quality 40-20 SD
Centration <3 arc min
Clear Aperture >90%
Bevel Protective bevel
Material BK7, SF11 other optical glass
AR coating and BBAR