[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 
6g)CpZU  
Title: A SIMPLE COOKE TRIPLET.
Units are Millimeters.
Wavelength: 0.550000 μm S4!B;,?AxN  
Type: Double Bounces `U>]*D68  
The '****' denotes a possible internal focus "rpP  
RMS is the RMS spot radius on axis at the primary wavelength. ;rXZ?"  
RMS values of 0.00 indicate that an accurate RMS <JW%h :\t  
could not be computed, usually due to ray errors.
This analysis may be inaccurate if the system is /5?tXH"  
non-rotationally symmetric or uses non-standard surfaces.
Ghost reflection off surface 2 then 1. (GH002001.ZMX) u\f QaQV  
Surf     Marginal          F/#          RMS `
/(9#E  
   1  5.0000E+000     5.737068  3.5355E+000 ZtpbKy!\$B  
   2  4.7160E+000     4.595701  3.3570E+000 OZe`>Q6  
   1  4.3614E+000     0.990012  3.1277E+000 ^[q/w<_j~  
   2  2.7155E+000     0.607262  1.9876E+000 {$C"yksr  
   3 -2.2309E+000     0.916280  2.6065E+000 T5_rPz  
   4 -2.7766E+000     0.514753  0.0000E+000 98CS|NEe  
   5 -7.3909E+000     0.888038  0.0000E+000 %~N| RSec  
   6 -9.0530E+000     0.823473  0.0000E+000 i,l$1g-i  
   7 -3.4681E+001     0.823473  0.0000E+000 }50s\H._C  
Marginal ray height    :       -34.6809 5+/XO>P1m|  
Chief ray height       :       -24.8107 0 R>!jw  
Distance to ghost pupil:       -50.9613 6Zv-kG  
Distance to ghost focus:       -57.1176 Yb'%
J@T}  
Effective focal length :         8.2347