[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 ~NMa
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基本條件是 r}+U1l3#2  
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主鏡必須是拋物面 !/BXMj,=  
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副鏡必須是球面 !dv  
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系統包含一組校正鏡 )K4 |-<i  
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口徑200mm以上 >u4%s7v  
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焦比不限制 `u3to{  
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視角0.5度以上 tT ~}lW)Y  
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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. weEmUw Z  
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Surf     Type         Radius      Thickness                Glass      Diameter          Conic D ?1$I0=  
OBJ STANDARD       Infinity       Infinity                                  0              0 XnHcU=~q  
   1 STANDARD       Infinity            480                                220              0 \`Db|D?oy  
STO STANDARD          -1500           -450               MIRROR           204             -1 7q<I7Wt  
   3 STANDARD      -1313.861       279.4093               MIRROR      88.07552              0 }:5AB93(  
   4 STANDARD       167.5149              6                N-BK7            56              0 I!%T!B540  
   5 STANDARD       123.4956       4.762038                                 56              0 !=;^Grv>  
   6 STANDARD      -262.7873              4                N-BK7            56              0 )Fe-C  
   7 STANDARD      -173.5643       263.0681                                 56              0 %fGS< W;  
   8 STANDARD       Infinity              0                           24.26983              0 %K@D{)r_^  
IMA STANDARD       Infinity                                          24.26983              0

經過不斷的努力,做了一些改進. -K hXb  
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Surf     Type         Radius      Thickness                Glass      Diameter          Conic -&I%=0q  
 OBJ STANDARD       Infinity       Infinity                                  0              0 p(in.Xz  
   1 STANDARD       Infinity            600                                170              0 {|= 8wB  
   2 STANDARD          -2000           -580               MIRROR           420             -1 Wly-z$\  
 STO STANDARD      -1884.757       397.7682               MIRROR      168.9907              0 1A"h!;0  
   4 STANDARD       559.8055              4                N-BK7           100              0 KoZ" yD  
   5 STANDARD       237.0107       6.225114                                100              0 Z[<rz6%cB  
   6 STANDARD      -1486.626              6                N-BK7           100              0 gVjI1{WTK  
   7 STANDARD      -319.3041       350.9258                                100              0 q[`)A?Ae  
   8 STANDARD       Infinity     0.04561954                           44.12979              0 iK8aj)%Q@  
 IMA STANDARD       Infinity                                          44.12228              0 [ &RZ&  

波像差真小啊！