[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 ]?lUe5F  
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基本條件是 E~`l/ W  
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主鏡必須是拋物面 "-R19SpJKh  
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副鏡必須是球面 K(}g!iT)~  
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系統包含一組校正鏡 SSysOeD+  
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口徑200mm以上 *u]aWx  
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焦比不限制 Dy|)u1?  
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視角0.5度以上 'q\[aKEX=  
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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. qyL!>kZr@  
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Surf     Type         Radius      Thickness                Glass      Diameter          Conic |vtj0,[  
OBJ STANDARD       Infinity       Infinity                                  0              0 p mUG`8SY  
   1 STANDARD       Infinity            480                                220              0 3GPGwzX |  
STO STANDARD          -1500           -450               MIRROR           204             -1 *9tRhRc  
   3 STANDARD      -1313.861       279.4093               MIRROR      88.07552              0 w@x||K=Z  
   4 STANDARD       167.5149              6                N-BK7            56              0 cf,^7,-`"  
   5 STANDARD       123.4956       4.762038                                 56              0 ]h%~'8g,  
   6 STANDARD      -262.7873              4                N-BK7            56              0 0SV4p.  
   7 STANDARD      -173.5643       263.0681                                 56              0 IsiBn(1Z  
   8 STANDARD       Infinity              0                           24.26983              0 X.eocy  
IMA STANDARD       Infinity                                          24.26983              0

經過不斷的努力,做了一些改進. 4e?MthJ>  
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Surf     Type         Radius      Thickness                Glass      Diameter          Conic FiKGB\_]  
 OBJ STANDARD       Infinity       Infinity                                  0              0 |eK^Yhy
m  
   1 STANDARD       Infinity            600                                170              0 vf-8DB  
   2 STANDARD          -2000           -580               MIRROR           420             -1 0zE(:K  
 STO STANDARD      -1884.757       397.7682               MIRROR      168.9907              0 h059DiH  
   4 STANDARD       559.8055              4                N-BK7           100              0 %[on.Q'1]2  
   5 STANDARD       237.0107       6.225114                                100              0 NmTo/5s  
   6 STANDARD      -1486.626              6                N-BK7           100              0 ?8YbTn1f)  
   7 STANDARD      -319.3041       350.9258                                100              0 L,
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   8 STANDARD       Infinity     0.04561954                           44.12979              0 ;N!opg))d<  
 IMA STANDARD       Infinity                                          44.12228              0 \hP.Q;"MtO  

波像差真小啊！