[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 gp4@6HuUd  
Title: A SIMPLE COOKE TRIPLET.
Units are Millimeters.
Wavelength: 0.550000 μm o)M<^b3KO  
Type: Double Bounces -*;JUSGh  
The '****' denotes a possible internal focus CK8!7=>}^  
RMS is the RMS spot radius on axis at the primary wavelength. Z`>m  
RMS values of 0.00 indicate that an accurate RMS Asli<L(?`  
could not be computed, usually due to ray errors.
This analysis may be inaccurate if the system is ]JlM/  
non-rotationally symmetric or uses non-standard surfaces.
Ghost reflection off surface 2 then 1. (GH002001.ZMX) zd3^k<  
Surf     Marginal          F/#          RMS ~T9wx  
   1  5.0000E+000     5.737068  3.5355E+000 LzD,]{CC5  
   2  4.7160E+000     4.595701  3.3570E+000 Q
1P=A:*]9  
   1  4.3614E+000     0.990012  3.1277E+000 @"n]v)[4  
   2  2.7155E+000     0.607262  1.9876E+000 I[P_j`aE  
   3 -2.2309E+000     0.916280  2.6065E+000 RP%FMb}nt  
   4 -2.7766E+000     0.514753  0.0000E+000 ]%+T+zg(Y  
   5 -7.3909E+000     0.888038  0.0000E+000 /|8/C40aY  
   6 -9.0530E+000     0.823473  0.0000E+000 bdHHOpXM  
   7 -3.4681E+001     0.823473  0.0000E+000
Tb!jIe  
Marginal ray height    :       -34.6809 {tUxRX  
Chief ray height       :       -24.8107 "f>`ZFp^  
Distance to ghost pupil:       -50.9613 r tH #j  
Distance to ghost focus:       -57.1176 dg4q+  
Effective focal length :         8.2347