[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 AEY$@!8  
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基本條件是 |~WYEh  
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主鏡必須是拋物面 >c4/?
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副鏡必須是球面 Bq@zaMv  
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系統包含一組校正鏡 +L0w;wT  
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口徑200mm以上 $IVwA  
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焦比不限制 c pk^!@c  
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視角0.5度以上 ]N^*tO  
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以下是我的結果,目前覺得副鏡的口徑太大,不知道有無改進的可能. P`S@n/}  
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Surf     Type         Radius      Thickness                Glass      Diameter          Conic e4`uVq5  
OBJ STANDARD       Infinity       Infinity                                  0              0 i%-Ld Ka}"  
   1 STANDARD       Infinity            480                                220              0 (gwj)?:  
STO STANDARD          -1500           -450               MIRROR           204             -1 s =Umj'1k  
   3 STANDARD      -1313.861       279.4093               MIRROR      88.07552              0 #]E(N~  
   4 STANDARD       167.5149              6                N-BK7            56              0 ";x+1R.d  
   5 STANDARD       123.4956       4.762038                                 56              0 @%hCAm  
   6 STANDARD      -262.7873              4                N-BK7            56              0 JBC$Ku  
   7 STANDARD      -173.5643       263.0681                                 56              0 4nqoZk^R  
   8 STANDARD       Infinity              0                           24.26983              0 &
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IMA STANDARD       Infinity                                          24.26983              0

經過不斷的努力,做了一些改進. OZY,@c  
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:O<bA&:d  
Surf     Type         Radius      Thickness                Glass      Diameter          Conic l_tw<`Ep  
 OBJ STANDARD       Infinity       Infinity                                  0              0 DQ#H,\^<  
   1 STANDARD       Infinity            600                                170              0 YevyN\,}V!  
   2 STANDARD          -2000           -580               MIRROR           420             -1 YgUH'P-  
 STO STANDARD      -1884.757       397.7682               MIRROR      168.9907              0 gi/@j  
   4 STANDARD       559.8055              4                N-BK7           100              0 )d\j I  
   5 STANDARD       237.0107       6.225114                                100              0 "9EE1];NT  
   6 STANDARD      -1486.626              6                N-BK7           100              0 j%
u-dr  
   7 STANDARD      -319.3041       350.9258                                100              0 uMb>xxf  
   8 STANDARD       Infinity     0.04561954                           44.12979              0 qBV x6MI  
 IMA STANDARD       Infinity                                          44.12228              0 $''?HjB
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波像差真小啊！