技术规格:

材料..............................................氟化钙单晶

外径公差....................................+0.0, -0.1mm

厚度公差............................................±0.1mm

有效孔径..............................................>90%

平行度.......................................................<1'

光洁度...................................................60-40

面形..........................λ/2 per 25mm @632.8nm

倒角...........................................0.25mm×45°

镀膜....................................................不镀膜