[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 A]Q4f
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基本條件是 I\`:
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主鏡必須是拋物面 v>7tJ[s  
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副鏡必須是球面 7q$9\RR5  
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系統包含一組校正鏡 AY,6Ddw  
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口徑200mm以上 ]:m*7p\uk  
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焦比不限制 >Py;6K  
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視角0.5度以上 g)u2  
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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. B>YrDJUN  
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Surf     Type         Radius      Thickness                Glass      Diameter          Conic 3_vggK%  
OBJ STANDARD       Infinity       Infinity                                  0              0 U>ob)-tl  
   1 STANDARD       Infinity            480                                220              0 h`&mW w  
STO STANDARD          -1500           -450               MIRROR           204             -1 ;(VJZ_
 
   3 STANDARD      -1313.861       279.4093               MIRROR      88.07552              0 ++Az~{W7  
   4 STANDARD       167.5149              6                N-BK7            56              0 6;[iX`LL  
   5 STANDARD       123.4956       4.762038                                 56              0 @*A(#U8p3  
   6 STANDARD      -262.7873              4                N-BK7            56              0 E2!;W8M  
   7 STANDARD      -173.5643       263.0681                                 56              0 >SSF:hI"J  
   8 STANDARD       Infinity              0                           24.26983              0 Ca?pK_Y  
IMA STANDARD       Infinity                                          24.26983              0

經過不斷的努力,做了一些改進. )P\ec  
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Surf     Type         Radius      Thickness                Glass      Diameter          Conic cKF 8(  
 OBJ STANDARD       Infinity       Infinity                                  0              0 sq&$  
   1 STANDARD       Infinity            600                                170              0 ix*n<lCoC  
   2 STANDARD          -2000           -580               MIRROR           420             -1 L[Tr"BW  
 STO STANDARD      -1884.757       397.7682               MIRROR      168.9907              0 uK3,V0 yz  
   4 STANDARD       559.8055              4                N-BK7           100              0 n#bC,  
   5 STANDARD       237.0107       6.225114                                100              0 u@[D*c1!H  
   6 STANDARD      -1486.626              6                N-BK7           100              0 0alm/or  
   7 STANDARD      -319.3041       350.9258                                100              0 ndW??wiM  
   8 STANDARD       Infinity     0.04561954                           44.12979              0 &kYg >X  
 IMA STANDARD       Infinity                                          44.12228              0 a:v&pj+|<  

波像差真小啊！