[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 5Z[D(z  
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基本條件是 GEA;9TU|V  
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主鏡必須是拋物面 LZVO9e]  
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副鏡必須是球面 m&q;.|W  
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系統包含一組校正鏡 =<05PB  
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口徑200mm以上 0- UeFy  
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焦比不限制 6!nb)auVi  
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視角0.5度以上 3EvA 5K.  
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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. 07|NPS  
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Surf     Type         Radius      Thickness                Glass      Diameter          Conic =;H'~  
OBJ STANDARD       Infinity       Infinity                                  0              0 v#|c.<].  
   1 STANDARD       Infinity            480                                220              0 N::;J  
STO STANDARD          -1500           -450               MIRROR           204             -1 1aE/_  
   3 STANDARD      -1313.861       279.4093               MIRROR      88.07552              0 XV>6;!=E  
   4 STANDARD       167.5149              6                N-BK7            56              0 /aqN`  
   5 STANDARD       123.4956       4.762038                                 56              0 pJz8e&wyLM  
   6 STANDARD      -262.7873              4                N-BK7            56              0 I[UA' ~f  
   7 STANDARD      -173.5643       263.0681                                 56              0 8ilbX)O  
   8 STANDARD       Infinity              0                           24.26983              0 fhmr*E'J  
IMA STANDARD       Infinity                                          24.26983              0

經過不斷的努力,做了一些改進. Kn#xY3W6  
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Surf     Type         Radius      Thickness                Glass      Diameter          Conic s.;KVy,=Bu  
 OBJ STANDARD       Infinity       Infinity                                  0              0 7G[ GHc>  
   1 STANDARD       Infinity            600                                170              0 ZqbM%(=z(`  
   2 STANDARD          -2000           -580               MIRROR           420             -1 {0vbC/?]  
 STO STANDARD      -1884.757       397.7682               MIRROR      168.9907              0 h0GdFWN  
   4 STANDARD       559.8055              4                N-BK7           100              0 $^=jPk]+  
   5 STANDARD       237.0107       6.225114                                100              0 :+ 9Ft>  
   6 STANDARD      -1486.626              6                N-BK7           100              0 y-<PsP-I  
   7 STANDARD      -319.3041       350.9258                                100              0 /-{O\7-D  
   8 STANDARD       Infinity     0.04561954                           44.12979              0 ]2\2/~l  
 IMA STANDARD       Infinity                                          44.12228              0 >9tkx/J  

波像差真小啊！