[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 P&9&/0r=_  
Title: A SIMPLE COOKE TRIPLET.
Units are Millimeters.
Wavelength: 0.550000 μm =_9grF-  
Type: Double Bounces iVf8M$!m  
The '****' denotes a possible internal focus q-d#bKIf  
RMS is the RMS spot radius on axis at the primary wavelength. qM0Df0$?x  
RMS values of 0.00 indicate that an accurate RMS 0D^c4[Y'l  
could not be computed, usually due to ray errors.
This analysis may be inaccurate if the system is ]dQ  
non-rotationally symmetric or uses non-standard surfaces.
Ghost reflection off surface 2 then 1. (GH002001.ZMX) } !RBH(m%  
Surf     Marginal          F/#          RMS iea7*]vW  
   1  5.0000E+000     5.737068  3.5355E+000 \PgMMc4'  
   2  4.7160E+000     4.595701  3.3570E+000 LE4P$%>H  
   1  4.3614E+000     0.990012  3.1277E+000 4lF?s\W:  
   2  2.7155E+000     0.607262  1.9876E+000 G}gmkp]
z  
   3 -2.2309E+000     0.916280  2.6065E+000 N#4"P:Sv  
   4 -2.7766E+000     0.514753  0.0000E+000 "|KD$CY  
   5 -7.3909E+000     0.888038  0.0000E+000 ,~qjL|9  
   6 -9.0530E+000     0.823473  0.0000E+000 Vi\kB
%  
   7 -3.4681E+001     0.823473  0.0000E+000 {t QZqqdn@  
Marginal ray height    :       -34.6809 oh^QW`#(  
Chief ray height       :       -24.8107 g.eMGwonTJ  
Distance to ghost pupil:       -50.9613 ]sV) '-  
Distance to ghost focus:       -57.1176 ];au! _o  
Effective focal length :         8.2347