[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 MI^@p`s  
Title: A SIMPLE COOKE TRIPLET.
Units are Millimeters.
Wavelength: 0.550000 μm {)V!wSi  
Type: Double Bounces :1>h,NKC>  
The '****' denotes a possible internal focus yx
0wR  
RMS is the RMS spot radius on axis at the primary wavelength. 52X[{  
RMS values of 0.00 indicate that an accurate RMS kYbqb?  
could not be computed, usually due to ray errors.
This analysis may be inaccurate if the system is " pg5w  
non-rotationally symmetric or uses non-standard surfaces.
Ghost reflection off surface 2 then 1. (GH002001.ZMX) PHQ7  
Surf     Marginal          F/#          RMS RT+pB{Y  
   1  5.0000E+000     5.737068  3.5355E+000 /g/]Q^  
   2  4.7160E+000     4.595701  3.3570E+000 pco:]3BF6  
   1  4.3614E+000     0.990012  3.1277E+000 6,wi81F,}  
   2  2.7155E+000     0.607262  1.9876E+000 p.wed%O.  
   3 -2.2309E+000     0.916280  2.6065E+000 ~Up5+7k@  
   4 -2.7766E+000     0.514753  0.0000E+000 %y96]e1  
   5 -7.3909E+000     0.888038  0.0000E+000 s#Os?Q?  
   6 -9.0530E+000     0.823473  0.0000E+000 dC'8orFG+  
   7 -3.4681E+001     0.823473  0.0000E+000 #VM+.75o1  
Marginal ray height    :       -34.6809 zR@4Z>6   
Chief ray height       :       -24.8107 v11Uw?CM  
Distance to ghost pupil:       -50.9613 %C[#:>'+  
Distance to ghost focus:       -57.1176 + d?p? v  
Effective focal length :         8.2347