[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 q3mJ782p]  
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基本條件是 aT{_0m$G10  
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主鏡必須是拋物面 6^V=?~a&z  
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副鏡必須是球面 \MA+f~)9  
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系統包含一組校正鏡 !02`t4Zc-  
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口徑200mm以上 _G[g;$<  
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焦比不限制 Ghu#XJB?  
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視角0.5度以上 44gPCW,u  
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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. 35A|BD)q  
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Surf     Type         Radius      Thickness                Glass      Diameter          Conic 18|m)(W  
OBJ STANDARD       Infinity       Infinity                                  0              0 n
3T>QgK  
   1 STANDARD       Infinity            480                                220              0 &T+atL`N  
STO STANDARD          -1500           -450               MIRROR           204             -1 |v`AA?@{8  
   3 STANDARD      -1313.861       279.4093               MIRROR      88.07552              0 Cw iKi^m  
   4 STANDARD       167.5149              6                N-BK7            56              0 $~~Jw]   
   5 STANDARD       123.4956       4.762038                                 56              0 Za/-i"U  
   6 STANDARD      -262.7873              4                N-BK7            56              0 -Y1e8H ='  
   7 STANDARD      -173.5643       263.0681                                 56              0 JUsQ,ETn  
   8 STANDARD       Infinity              0                           24.26983              0 +M./@U*g  
IMA STANDARD       Infinity                                          24.26983              0

經過不斷的努力,做了一些改進. 'UkxS b  
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Surf     Type         Radius      Thickness                Glass      Diameter          Conic anuL1fXO  
 OBJ STANDARD       Infinity       Infinity                                  0              0  ^le<}  
   1 STANDARD       Infinity            600                                170              0 ZkgV_<M|  
   2 STANDARD          -2000           -580               MIRROR           420             -1 KMt`XaC9e  
 STO STANDARD      -1884.757       397.7682               MIRROR      168.9907              0 +~St !QV%  
   4 STANDARD       559.8055              4                N-BK7           100              0 F^l[GdUosK  
   5 STANDARD       237.0107       6.225114                                100              0 A_n7w  
   6 STANDARD      -1486.626              6                N-BK7           100              0 r~[Ia!U?  
   7 STANDARD      -319.3041       350.9258                                100              0 HPpR.  
   8 STANDARD       Infinity     0.04561954                           44.12979              0 uvg
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 IMA STANDARD       Infinity                                          44.12228              0 ~)*,S^k(C.  

波像差真小啊！