[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 k{<,\J  
Title: A SIMPLE COOKE TRIPLET.
Units are Millimeters.
Wavelength: 0.550000 μm V14B[|YM<  
Type: Double Bounces po}F6m8bX  
The '****' denotes a possible internal focus 8dlw-Q'S  
RMS is the RMS spot radius on axis at the primary wavelength. E(i[o?  
RMS values of 0.00 indicate that an accurate RMS "t0kAG  
could not be computed, usually due to ray errors.
This analysis may be inaccurate if the system is R9!Uo  
non-rotationally symmetric or uses non-standard surfaces.
Ghost reflection off surface 2 then 1. (GH002001.ZMX) _fwb!T}$  
Surf     Marginal          F/#          RMS -!\fpl{  
   1  5.0000E+000     5.737068  3.5355E+000 X7g3  
   2  4.7160E+000     4.595701  3.3570E+000 /By)"  
   1  4.3614E+000     0.990012  3.1277E+000 QL$S4 J"  
   2  2.7155E+000     0.607262  1.9876E+000 C-?!S  
   3 -2.2309E+000     0.916280  2.6065E+000 aceZ3U>W  
   4 -2.7766E+000     0.514753  0.0000E+000 GAc{l=vT'  
   5 -7.3909E+000     0.888038  0.0000E+000 leCVK.  
   6 -9.0530E+000     0.823473  0.0000E+000
GTJ{h  
   7 -3.4681E+001     0.823473  0.0000E+000 z~\t|Z]G,|  
Marginal ray height    :       -34.6809 ]0r|_)s  
Chief ray height       :       -24.8107 |~ _'V "  
Distance to ghost pupil:       -50.9613 O,
.!2wVrN  
Distance to ghost focus:       -57.1176 SAY f'[|w  
Effective focal length :         8.2347