Substratum,hemi-spherical yn%w'
Flatness L/2 @633 nm on flat surface or better(specify). tX)]ZuEi$
Figure irregularity L/10@633nm. xRaYm
no chips exceeding uO":\<1#
Thickness specified at the edge, all types. ]v9<^!
Substratum BK7 D20×5 PCX f+ 300 mm 71)HxC[6vA
有哪位哥哥姐姐懂的,幫忙翻譯一下,誠(chéng)謝。