product: sapphire hole

material:sapphire

diameter tolerance:±0.05mm

inner diameter tolerance: ±0.02mm

thickness tolerance:±0.05mm

roughness: S/D: 80/50 60/40 40/20

wave-front error:@632.8nm:λ~λ/20 per25mm

effective optical aperture: 80%~99%

break edges: 0.20±0.05*45°

coating: customized