[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 >taT V_,  
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基本條件是 PClwGO8'&  
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主鏡必須是拋物面 '@^<c#h]=  
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副鏡必須是球面 ~}YgZ/U7T  
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系統包含一組校正鏡 bxz6 >>  
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口徑200mm以上 az:lG(ZGw  
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焦比不限制 1eqFMf  
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視角0.5度以上 h" YA>_1  

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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. 6l?KX  
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Surf     Type         Radius      Thickness                Glass      Diameter          Conic kZ_5R#xK  
OBJ STANDARD       Infinity       Infinity                                  0              0 cMt , 80  
   1 STANDARD       Infinity            480                                220              0 e3&.RrA  
STO STANDARD          -1500           -450               MIRROR           204             -1 $/i;UUd  
   3 STANDARD      -1313.861       279.4093               MIRROR      88.07552              0 +>h'^/rAE  
   4 STANDARD       167.5149              6                N-BK7            56              0 +QrbW  
   5 STANDARD       123.4956       4.762038                                 56              0 8J7<7Sx  
   6 STANDARD      -262.7873              4                N-BK7            56              0 R75np^  
   7 STANDARD      -173.5643       263.0681                                 56              0 {wfe!f  
   8 STANDARD       Infinity              0                           24.26983              0 *j= whdw%J  
IMA STANDARD       Infinity                                          24.26983              0

經過不斷的努力,做了一些改進. #yk m  
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Surf     Type         Radius      Thickness                Glass      Diameter          Conic w#5^A(NR  
 OBJ STANDARD       Infinity       Infinity                                  0              0 M38QA  
   1 STANDARD       Infinity            600                                170              0 ^U.8grA  
   2 STANDARD          -2000           -580               MIRROR           420             -1 <o";?
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 STO STANDARD      -1884.757       397.7682               MIRROR      168.9907              0 (JHL0Z/  
   4 STANDARD       559.8055              4                N-BK7           100              0 Og?]y ^y  
   5 STANDARD       237.0107       6.225114                                100              0 r-+.Ax4L"  
   6 STANDARD      -1486.626              6                N-BK7           100              0 >?q()>l  
   7 STANDARD      -319.3041       350.9258                                100              0 &C+pen)Z  
   8 STANDARD       Infinity     0.04561954                           44.12979              0 e
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 IMA STANDARD       Infinity                                          44.12228              0 7W6tz\Y  

波像差真小啊！