尺寸公差................................................................+0.00, -0.05mm
定向................................................................ 0.1°
波前畸變..................................................................λ/10 @632.8nm
相位延遲..................................................................λ/2, λ/4, 延遲.................................................................< λ/500
平行度....................................................................< 1 arc second
孔徑...................................................................> 90%
光潔度.....................................................................20-10
崩邊.......................................................................< 0.02mm | 
