Material
K9 ,JGS1,N-BK7,fused silica,corning 7980
Diameter Tolerance
±0.01mm
Thickness Tolerance
±0.05mm
Surface Quality
10/5,20/10,40/20,60/40,80/50
Surface Accuracy
lambda/2~lambda/10
Parallelism
1 arc ninute or customized
Coating
According to the customer's demand