Diameter Available
2mm--220mm
Diameter Tolerance
±0.05mm
Thickness Tolerance
Focal Length Tolerance
±1%
Surface Accuracy
L/4
Surface Quality
40-20 S/D
Centration
＜1 arc min
Clear Aperture
＞90%
Bevel
Protective bevel
Material
BK7,Fused silica, and other optical glass
Coating
AR coating
Copy right from NJSC OPTICS
