Spherical lens

Material: BK7 glass,UV grade fused silica,CaF2 etc.
Diameter: 5mm to 300mm
Diameter Tolerance: +0.0,-0.1mm
Center Thickness: +/-0.2mm  
Bevle <0.25mm
Paraxial Focal Length: +/-1% (EFL<1m)+/-2%（EFL>1m)
Surface Quality 60-40 scrath and dig or better
Clear Aperture: 90% of diameter
Coating: Uncoated, AR, HR, PR Coating, etc.
We could offer concave or convex lenses according to custom design.