[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 @3VL _g:  
07/5RFmJ  
基本條件是 (O?z6g  
&hV;3";  
主鏡必須是拋物面 _QXo4z!a8  
Ta9;;B?$  
副鏡必須是球面 vaTXu*   
@o;m!CYB  
系統包含一組校正鏡 fK4laDBTO  
35&&*$Jm  
口徑200mm以上 6|_ S|N  
TuaT-Z~U{  
焦比不限制 Bu6t3  
v7&$(HJ>]L  
視角0.5度以上 azE>uEsE  
HnOF_Twq  
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. +XY}-  
1$xt=*.u|  
HF47Lc*c  
ghms-.:b8  
Surf     Type         Radius      Thickness                Glass      Diameter          Conic Ch7eUTqA@  
OBJ STANDARD       Infinity       Infinity                                  0              0 K"g[%O<  
   1 STANDARD       Infinity            480                                220              0 ]}'WNy6c&x  
STO STANDARD          -1500           -450               MIRROR           204             -1 !knYD}Rxd  
   3 STANDARD      -1313.861       279.4093               MIRROR      88.07552              0 NugJjd56x  
   4 STANDARD       167.5149              6                N-BK7            56              0 hp>me*vzr  
   5 STANDARD       123.4956       4.762038                                 56              0 L G=Q  
   6 STANDARD      -262.7873              4                N-BK7            56              0 4<LRa=XT$  
   7 STANDARD      -173.5643       263.0681                                 56              0 8,['q~z  
   8 STANDARD       Infinity              0                           24.26983              0 BA-n+WCWJ  
IMA STANDARD       Infinity                                          24.26983              0

經過不斷的努力,做了一些改進. #n0P'@d,r  
`cf&4Hn  
j@ =n|cq  
Surf     Type         Radius      Thickness                Glass      Diameter          Conic O":x$>'t  
 OBJ STANDARD       Infinity       Infinity                                  0              0 3+(Fq5I  
   1 STANDARD       Infinity            600                                170              0 W\X51DrEx  
   2 STANDARD          -2000           -580               MIRROR           420             -1 Z*kg= hs^  
 STO STANDARD      -1884.757       397.7682               MIRROR      168.9907              0 w3B*%x)  
   4 STANDARD       559.8055              4                N-BK7           100              0 f? ko%c_p  
   5 STANDARD       237.0107       6.225114                                100              0 M22^.,Z  
   6 STANDARD      -1486.626              6                N-BK7           100              0 tn:9
  
   7 STANDARD      -319.3041       350.9258                                100              0 0y6nMI  
   8 STANDARD       Infinity     0.04561954                           44.12979              0 
7gPk
g63  
 IMA STANDARD       Infinity                                          44.12228              0 KcY 2lTvx  

波像差真小啊！