[讨论]如何分析Ghost focus generator的结果 [复制链接]

Ghost Trace Data
File : C:\Program Files\ZEMAX - Beta\Samples\Sequential\Objectives\Cooke 40 degree field.zmx I-kWS4  
Title: A SIMPLE COOKE TRIPLET.
Units are Millimeters.
Wavelength: 0.550000 μm .XS9,/S  
Type: Double Bounces rQb7?O@-  
The '****' denotes a possible internal focus V%*b@zv  
RMS is the RMS spot radius on axis at the primary wavelength. -_em%o3XC  
RMS values of 0.00 indicate that an accurate RMS @}&_Dvf  
could not be computed, usually due to ray errors.
This analysis may be inaccurate if the system is eM2|c3/  
non-rotationally symmetric or uses non-standard surfaces.
Ghost reflection off surface 2 then 1. (GH002001.ZMX) BhkoSkr  
Surf     Marginal          F/#          RMS v7,$7@$:\  
   1  5.0000E+000     5.737068  3.5355E+000 iX"C/L|JN  
   2  4.7160E+000     4.595701  3.3570E+000 K\u_Ji]k  
   1  4.3614E+000     0.990012  3.1277E+000 Rko M~`CT  
   2  2.7155E+000     0.607262  1.9876E+000 g<wRN#B  
   3 -2.2309E+000     0.916280  2.6065E+000 pr&=n;_ n  
   4 -2.7766E+000     0.514753  0.0000E+000 |gx~gG<  
   5 -7.3909E+000     0.888038  0.0000E+000 02=lsV!U  
   6 -9.0530E+000     0.823473  0.0000E+000 ;wHCj$q  
   7 -3.4681E+001     0.823473  0.0000E+000 p*20-!{A  
Marginal ray height    :       -34.6809 M'L;N!1A  
Chief ray height       :       -24.8107 H,y4`p 0  
Distance to ghost pupil:       -50.9613 }Wh6zT)  
Distance to ghost focus:       -57.1176 =r9r~SR#  
Effective focal length :         8.2347