[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 :^J(%zy  
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基本條件是 OO53U=NU  
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主鏡必須是拋物面 :~U1JAs$  
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副鏡必須是球面  ,u
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系統包含一組校正鏡 C+-~Gmrb(7  
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口徑200mm以上 }_5z(7}3
 
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焦比不限制 ]<W1edr  
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視角0.5度以上 ^'v6 ,*:4  
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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. SZvw>=)a  
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Surf     Type         Radius      Thickness                Glass      Diameter          Conic BjOrQAO  
OBJ STANDARD       Infinity       Infinity                                  0              0 HmRwh  
   1 STANDARD       Infinity            480                                220              0 #@lr$^M  
STO STANDARD          -1500           -450               MIRROR           204             -1 _.Uz!2  
   3 STANDARD      -1313.861       279.4093               MIRROR      88.07552              0 .-c3f1i  
   4 STANDARD       167.5149              6                N-BK7            56              0 ?CL1^N%  
   5 STANDARD       123.4956       4.762038                                 56              0 +apIp(E+  
   6 STANDARD      -262.7873              4                N-BK7            56              0 *b7HtUA  
   7 STANDARD      -173.5643       263.0681                                 56              0 MeP U`M--  
   8 STANDARD       Infinity              0                           24.26983              0 k]; <PF  
IMA STANDARD       Infinity                                          24.26983              0

經過不斷的努力,做了一些改進. nV']^3b  
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Surf     Type         Radius      Thickness                Glass      Diameter          Conic y=
  
 OBJ STANDARD       Infinity       Infinity                                  0              0 2px5>4<  
   1 STANDARD       Infinity            600                                170              0 #/1A:ig  
   2 STANDARD          -2000           -580               MIRROR           420             -1 j#!J hi  
 STO STANDARD      -1884.757       397.7682               MIRROR      168.9907              0 P?]q*KViM  
   4 STANDARD       559.8055              4                N-BK7           100              0 }$AC0  
   5 STANDARD       237.0107       6.225114                                100              0 ?{{E/J:%  
   6 STANDARD      -1486.626              6                N-BK7           100              0 [ddEt  
   7 STANDARD      -319.3041       350.9258                                100              0 q &jW{  
   8 STANDARD       Infinity     0.04561954                           44.12979              0 HJg)c;u/2;  
 IMA STANDARD       Infinity                                          44.12228              0 cJE2z2uW0
 

波像差真小啊！