Production Capabilities:
Diameter(Φ): 3.00-150.00 mm
Material: Glasses,Crystals......
Surface Accuracy: 1-3.0 fringes power
Surface Irregularity : ≤0.3 fringes power(0.15λ)
Surface Quality: 10-5 scratch-dig
Center Thickness(Tc): ≥0.5mm
Center Thickness Accuracy: ± 0.01 mm
Centration Accuracy : 0.5- 3 arc minutes
Clear Aperture: ≥ 90% of diameter