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