如下程序，平面光源以一定角度發(fā)射光線至與其平行的探測器上，怎么計算得到的波前有84個波長啊？ n'w,n1z7  
8e:vWgQpL  
UNITS MM KX+ey8@[  
WAVELENGTHS 1.064 UM c
[(Pg%  
3(_!`0#F%  
SURFACE   s@@1 *VQ  
  PLANE Y -30 RECT 10 0.85 dk5|@?pe  
  SHIFT X 0 Wr%7~y*K  
  SHIFT Z 10 ;)/
@Xx  
  OBJECT 'DETECTOR' V|?WF&  
8C&x MA^  
BEAMS INCOHERENT GEOMETRIC     ohZx03  
FRESNEL TIR #uvJH8)D  
WAVELENGTHS 1.064 +<(a}6dt  
GRID RECT Y -34.50204 0 20 -0.8 0.8 10 10 \9m*(_Qf  
SOURCE DIR SIN[8.4089] COS[8.4089] 0   4O$2]D.\  
!!SOURCE DIR Y 81.5911 g:~+Pe  
f\o R:%  
WINDOW X Y #BJ\{"b_}z  
WINDOW 1.1 zJl_ t0  
!!PROFILES OVERLAY 'SINGLET (on-axis and 7 degrees off-axis beam)' otriif@+Z  
PLOT FACETS 3 3 OVERLAY EZj1jpL  
TRACE PLOT     9D_wG\g  
$VIEW     zG% |0