parameter:
Material: BK7,Fused silica
Dimension Tolerance: ±0.10mm
Surface Flatness: λ/8@633nm over clear aperture
Surface quality:20/10
Angle Tolerance: ±10arc sec---±3arc min
Perpendicularity: ±2arc min
Clear Aperture: 90% of central circular dimension
Bevel: 0.3mmx45°






Welcome to inquire us we will make fast reply and service for you!