[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|yGx)'^P  
Title: A SIMPLE COOKE TRIPLET.
Units are Millimeters.
Wavelength: 0.550000 μm <(ubZ  
Type: Double Bounces .Lp Nm'=R  
The '****' denotes a possible internal focus U5-zB)V  
RMS is the RMS spot radius on axis at the primary wavelength. v^57j:sD  
RMS values of 0.00 indicate that an accurate RMS L)j]~^P$-  
could not be computed, usually due to ray errors.
This analysis may be inaccurate if the system is `mWQWx$V!  
non-rotationally symmetric or uses non-standard surfaces.
Ghost reflection off surface 2 then 1. (GH002001.ZMX) vC s6#PR$  
Surf     Marginal          F/#          RMS oa?!50d  
   1  5.0000E+000     5.737068  3.5355E+000 qb 46EZu  
   2  4.7160E+000     4.595701  3.3570E+000 ktdz@f  
   1  4.3614E+000     0.990012  3.1277E+000 9 #.<E5:  
   2  2.7155E+000     0.607262  1.9876E+000 U=_~{[/  
   3 -2.2309E+000     0.916280  2.6065E+000 lsN/$M|}  
   4 -2.7766E+000     0.514753  0.0000E+000 LJ:mJ#  
   5 -7.3909E+000     0.888038  0.0000E+000 o x03c  
   6 -9.0530E+000     0.823473  0.0000E+000 o$^O<zL  
   7 -3.4681E+001     0.823473  0.0000E+000 h,Y{t?Of  
Marginal ray height    :       -34.6809 y_;]=hEL  
Chief ray height       :       -24.8107 j P{:A9T\  
Distance to ghost pupil:       -50.9613 #%9oQ6nO  
Distance to ghost focus:       -57.1176 &T5fH!?4  
Effective focal length :         8.2347