如果採用 Code V 軟體,那麼可以用 SAGF 函數計算面深(Sag)量: /&u<TJ4
SAGF(surface_num, zoom_pos, x_coord, y_coord) - Sag of the designated surface at x_coord, y_coord 0JgL2ayIVI
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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: *Ype>x{
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(1) 使用 Zygo 干涉儀 mcz+P |
函數 @VFA(zoom #, surface #, height) ,+qVu,
Surface is testable for @VFA < 1.0 *Nyev]8
Surface is not testable for @VFA > 1.0 7'wS\/e4a
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(2)使用 QED 干涉儀 wU#F_De)R:
函數 @SSIa(surface #, zoom #, height) <<D$+@wxm
0 <= @SSIa < 0.5 - surface is readily testable T081G`li
0.5 <= @SSIa < 1 - surface is marginally testable L=2y57&Y
@SSIa >= 1 - surface is difficult to test