Substratum,hemi-spherical !h>aP4ofT
Flatness L/2 @633 nm on flat surface or better(specify). %Wa. 2s
Figure irregularity L/10@633nm. -op(26:W<
no chips exceeding `J-&Y2_/k
Thickness specified at the edge, all types. :y^%I xs{1
Substratum BK7 D20×5 PCX f+ 300 mm )<vuv9=k\%
有哪位哥哥姐姐懂的,帮忙翻译一下,诚谢!!