产 品 说 明                                                                                                                    

Specifications:

Material

BK7 glass,UV grade fused silica,CaF2

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

Clear Aperture

Central 85% of diameter

Coating

Uncoated, AR, HR, PR Coating, etc.