[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 `Z0FQ( r_  
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基本條件是 l*":WzRGvF  
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主鏡必須是拋物面 lE'2\kxI?  
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副鏡必須是球面 6 -N 442  
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系統包含一組校正鏡 cY0NQKUk~  
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口徑200mm以上 ACctyGd  
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焦比不限制 WBK6U
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視角0.5度以上 wQEsq<  
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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. #p*D.We  
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Surf     Type         Radius      Thickness                Glass      Diameter          Conic u%!/-&?wF  
OBJ STANDARD       Infinity       Infinity                                  0              0 L7;8:^ v  
   1 STANDARD       Infinity            480                                220              0 @IhC:Yc  
STO STANDARD          -1500           -450               MIRROR           204             -1 #oW"3L{,  
   3 STANDARD      -1313.861       279.4093               MIRROR      88.07552              0 -Aaim`06bv  
   4 STANDARD       167.5149              6                N-BK7            56              0 VkdGGY  
   5 STANDARD       123.4956       4.762038                                 56              0 1o`zAJ8|2  
   6 STANDARD      -262.7873              4                N-BK7            56              0 ' Dcj\=8
 
   7 STANDARD      -173.5643       263.0681                                 56              0 q=(% ]BK  
   8 STANDARD       Infinity              0                           24.26983              0 \Kr8k`f  
IMA STANDARD       Infinity                                          24.26983              0

經過不斷的努力,做了一些改進. S=(<m%f  
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Surf     Type         Radius      Thickness                Glass      Diameter          Conic h%:rJ_#Zl  
 OBJ STANDARD       Infinity       Infinity                                  0              0 t%;w<1E  
   1 STANDARD       Infinity            600                                170              0 P0e-v0  
   2 STANDARD          -2000           -580               MIRROR           420             -1 U@M3.[jw  
 STO STANDARD      -1884.757       397.7682               MIRROR      168.9907              0 -QroT`gy  
   4 STANDARD       559.8055              4                N-BK7           100              0 H T|DT  
   5 STANDARD       237.0107       6.225114                                100              0 3w</B-|nQ  
   6 STANDARD      -1486.626              6                N-BK7           100              0 s'h;a5Q1'Q  
   7 STANDARD      -319.3041       350.9258                                100              0 /M_$
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   8 STANDARD       Infinity     0.04561954                           44.12979              0 TjyL])$  
 IMA STANDARD       Infinity                                          44.12228              0 4);_f  

波像差真小啊！