[讨论]一個雙反系統的改進 [复制链接]

這是我最近在想的一個設計 vb 1@yQ  
^D^4 YJz  
基本條件是 YjF|XPv+ l  
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主鏡必須是拋物面 2sN
K  
NN0$}acp  
副鏡必須是球面 YprHwL  
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系統包含一組校正鏡 WW+l'6.  
"mL++>ZSQ  
口徑200mm以上 2!&&|Mh}  
UYk>'\%H0  
焦比不限制 p4IZ   
$aHAv/&(5  
視角0.5度以上 4'$g(+z  
mk7&<M  
以下是我的結果,目前覺得副鏡的口徑太大,不知道有無改進的可能. [7(-T?_  
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Surf     Type         Radius      Thickness                Glass      Diameter          Conic H&r,FmI@  
OBJ STANDARD       Infinity       Infinity                                  0              0 3lV^B[$  
   1 STANDARD       Infinity            480                                220              0  +`7KSwa  
STO STANDARD          -1500           -450               MIRROR           204             -1 EbeI{-'aF  
   3 STANDARD      -1313.861       279.4093               MIRROR      88.07552              0 DG4d"Jy  
   4 STANDARD       167.5149              6                N-BK7            56              0 -a*K$rnB  
   5 STANDARD       123.4956       4.762038                                 56              0 4Mk-2 Dx  
   6 STANDARD      -262.7873              4                N-BK7            56              0 ]yjl~3  
   7 STANDARD      -173.5643       263.0681                                 56              0 syU9O&<  
   8 STANDARD       Infinity              0                           24.26983              0 m}>F<;hQ  
IMA STANDARD       Infinity                                          24.26983              0

波像差真小啊！

經過不斷的努力,做了一些改進. xeGb?DPu  
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%kgkXc~6|x  
Surf     Type         Radius      Thickness                Glass      Diameter          Conic F[
ewn/]n  
 OBJ STANDARD       Infinity       Infinity                                  0              0 Ytg
j|@jsp  
   1 STANDARD       Infinity            600                                170              0 Y2'cs~~$Ce  
   2 STANDARD          -2000           -580               MIRROR           420             -1 }B~If}7  
 STO STANDARD      -1884.757       397.7682               MIRROR      168.9907              0 imiR/V>N  
   4 STANDARD       559.8055              4                N-BK7           100              0 N>>uCkC  
   5 STANDARD       237.0107       6.225114                                100              0 O#Wh TDF"  
   6 STANDARD      -1486.626              6                N-BK7           100              0 F
v<`AU  
   7 STANDARD      -319.3041       350.9258                                100              0 ]r_;dYa  
   8 STANDARD       Infinity     0.04561954                           44.12979              0 -\#0]F:-  
 IMA STANDARD       Infinity                                          44.12228              0 GKcv<G208