[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 KGWyJ  
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基本條件是 ^.hoLwp.  
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主鏡必須是拋物面 jWY$5Vq<H  
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副鏡必須是球面 dpFVN[\oK  
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系統包含一組校正鏡 i-'9AYyw  
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口徑200mm以上 ph_4q@  
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焦比不限制 Ai/b\:V9S  
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視角0.5度以上 zt<WXw(  
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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. Ga^Zb^y  
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Surf     Type         Radius      Thickness                Glass      Diameter          Conic #."Hh<C  
OBJ STANDARD       Infinity       Infinity                                  0              0 (C\hVy2X?N  
   1 STANDARD       Infinity            480                                220              0 :Mcu  
STO STANDARD          -1500           -450               MIRROR           204             -1 Hsihytdj  
   3 STANDARD      -1313.861       279.4093               MIRROR      88.07552              0 p<&Xd}]"^W  
   4 STANDARD       167.5149              6                N-BK7            56              0 \/SQ,*O  
   5 STANDARD       123.4956       4.762038                                 56              0 J8"[6vId~  
   6 STANDARD      -262.7873              4                N-BK7            56              0 qBQ`~4s  
   7 STANDARD      -173.5643       263.0681                                 56              0 eh,~F  
   8 STANDARD       Infinity              0                           24.26983              0 9Li%KOY  
IMA STANDARD       Infinity                                          24.26983              0

經過不斷的努力,做了一些改進. E"|4Y(G  
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Surf     Type         Radius      Thickness                Glass      Diameter          Conic kL90&nP  
 OBJ STANDARD       Infinity       Infinity                                  0              0 e/8z+H^H  
   1 STANDARD       Infinity            600                                170              0 SMf+qiM-E  
   2 STANDARD          -2000           -580               MIRROR           420             -1 5y} v{Ijt  
 STO STANDARD      -1884.757       397.7682               MIRROR      168.9907              0 J RPSvP\  
   4 STANDARD       559.8055              4                N-BK7           100              0 gFPi7 o1  
   5 STANDARD       237.0107       6.225114                                100              0 }K(o9$V ^!  
   6 STANDARD      -1486.626              6                N-BK7           100              0 Y e+Ay  
   7 STANDARD      -319.3041       350.9258                                100              0 MDRe(rF=  
   8 STANDARD       Infinity     0.04561954                           44.12979              0 [Qdq}FYr  
 IMA STANDARD       Infinity                                          44.12228              0 70B)|<$  

波像差真小啊！