[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 >/`cmNmb  
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基本條件是 }nY^T&?`  
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主鏡必須是拋物面 wukos5  
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副鏡必須是球面 ~q|e];tA  
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系統包含一組校正鏡 utl=O  
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口徑200mm以上 Hi" n GH  
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焦比不限制 8EEQV}4  
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視角0.5度以上 zUtf&Ih  
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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. ow$l!8  
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Surf     Type         Radius      Thickness                Glass      Diameter          Conic q[+:t   
OBJ STANDARD       Infinity       Infinity                                  0              0 I_I;.Ik  
   1 STANDARD       Infinity            480                                220              0 2/4x]i H*  
STO STANDARD          -1500           -450               MIRROR           204             -1 ;xtb2c8HT  
   3 STANDARD      -1313.861       279.4093               MIRROR      88.07552              0 &r5%WRzpYT  
   4 STANDARD       167.5149              6                N-BK7            56              0 3v>,c>b([  
   5 STANDARD       123.4956       4.762038                                 56              0 >upUY(3&  
   6 STANDARD      -262.7873              4                N-BK7            56              0 d?y\~<  
   7 STANDARD      -173.5643       263.0681                                 56              0 =LY^3TlDj  
   8 STANDARD       Infinity              0                           24.26983              0 AbI*/|sY  
IMA STANDARD       Infinity                                          24.26983              0

經過不斷的努力,做了一些改進. cty#@?"e  
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Surf     Type         Radius      Thickness                Glass      Diameter          Conic qZ1PC
>  
 OBJ STANDARD       Infinity       Infinity                                  0              0 yE{UV>ry  
   1 STANDARD       Infinity            600                                170              0 xl=|]8w  
   2 STANDARD          -2000           -580               MIRROR           420             -1 q`zR6  
 STO STANDARD      -1884.757       397.7682               MIRROR      168.9907              0 iPNsEQ0We  
   4 STANDARD       559.8055              4                N-BK7           100              0 }gaKO 5  
   5 STANDARD       237.0107       6.225114                                100              0 !`E2O*g
 
   6 STANDARD      -1486.626              6                N-BK7           100              0 Z9bPj8d  
   7 STANDARD      -319.3041       350.9258                                100              0 vG:,oB}  
   8 STANDARD       Infinity     0.04561954                           44.12979              0 u)>*U'bM  
 IMA STANDARD       Infinity                                          44.12228              0 B%;
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波像差真小啊！