如果採用 Code V 軟體,那麼可以用 SAGF 函數計算面深(Sag)量: M>mk=-l
SAGF(surface_num, zoom_pos, x_coord, y_coord) - Sag of the designated surface at x_coord, y_coord H$:Z`CQt<
T:$zNX<f
如果想知道的是某一非球面的型狀是否能由干涉儀測量,那麼 Code V 提供兩個函數: blwdcdh
_.xT
:b36
(1) 使用 Zygo 干涉儀 I[~EQ{Iz
函數 @VFA(zoom #, surface #, height) iK*2 Z$`lw
Surface is testable for @VFA < 1.0 o@ ?3i+%}8
Surface is not testable for @VFA > 1.0 }),tk?\
[e2sUO0~r
(2)使用 QED 干涉儀 lWv3c!E`
函數 @SSIa(surface #, zoom #, height) >uok\sX
0 <= @SSIa < 0.5 - surface is readily testable dQ=mg#(
0.5 <= @SSIa < 1 - surface is marginally testable ~RQ6DG^
@SSIa >= 1 - surface is difficult to test