High quality and favroable price
Fast delivery time and great after-sales service

Specifications:
Material: N-BK7, Sapphire, or Fused Silica
Diameter:6mm
Dimensional Tolerance:±0.2mm
Effective Focal Length:24.00mm
Back Focal Length:22.94mm
Focal Length Tolerance:±3%
Radius:22.94mm
Edge Thickness:1.23mm
Center Thickness:1.60mm
Flatness:λ/4 @632.8nm
Surface Quality:60/40 or better
Chamfer:0.25×45°
Coating: Upon Requirement
For custom sizes and coating requirements, welcome to contact me!