[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 7DAP_C  
Title: A SIMPLE COOKE TRIPLET.
Units are Millimeters.
Wavelength: 0.550000 μm ^`cv6;)  
Type: Double Bounces ${T/b(NM  
The '****' denotes a possible internal focus QP\9#D~  
RMS is the RMS spot radius on axis at the primary wavelength. I Cc{2l  
RMS values of 0.00 indicate that an accurate RMS Ksx-Y"  
could not be computed, usually due to ray errors.
This analysis may be inaccurate if the system is 5_(\Cd<#  
non-rotationally symmetric or uses non-standard surfaces.
Ghost reflection off surface 2 then 1. (GH002001.ZMX) /S]$Hu|  
Surf     Marginal          F/#          RMS cKVFykwM  
   1  5.0000E+000     5.737068  3.5355E+000 Z!g6uV+.5  
   2  4.7160E+000     4.595701  3.3570E+000 Tri\5O0lPs  
   1  4.3614E+000     0.990012  3.1277E+000 0q5J)l:  
   2  2.7155E+000     0.607262  1.9876E+000 -lo?16w  
   3 -2.2309E+000     0.916280  2.6065E+000 Jj=qC{]  
   4 -2.7766E+000     0.514753  0.0000E+000 AqgY*"A7  
   5 -7.3909E+000     0.888038  0.0000E+000 w;,34qbf  
   6 -9.0530E+000     0.823473  0.0000E+000 i)x0]XF  
   7 -3.4681E+001     0.823473  0.0000E+000 ):K
%  
Marginal ray height    :       -34.6809 <D|&)/#  
Chief ray height       :       -24.8107 cy^=!EfA  
Distance to ghost pupil:       -50.9613 k-ZO/yPo  
Distance to ghost focus:       -57.1176 |.@!CqJ  
Effective focal length :         8.2347