[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 ouL/tt_~  
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基本條件是 mtSOygd  
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主鏡必須是拋物面 `xMmo8u4  
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副鏡必須是球面 7=(rk  
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系統包含一組校正鏡 qpjtF'  
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口徑200mm以上 e33j&:O  
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焦比不限制 0*^ J;QGE  
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視角0.5度以上 r2M Iw  
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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. A{3Aw|;  
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Surf     Type         Radius      Thickness                Glass      Diameter          Conic \n$s5i-  
OBJ STANDARD       Infinity       Infinity                                  0              0 #-*7<wN   
   1 STANDARD       Infinity            480                                220              0 . J[2\"W  
STO STANDARD          -1500           -450               MIRROR           204             -1 A(zF[\{]  
   3 STANDARD      -1313.861       279.4093               MIRROR      88.07552              0 ?0 93'lA  
   4 STANDARD       167.5149              6                N-BK7            56              0 uTTM%-DMHT  
   5 STANDARD       123.4956       4.762038                                 56              0 ]wFKXZeK  
   6 STANDARD      -262.7873              4                N-BK7            56              0 {5w'.Z]0v  
   7 STANDARD      -173.5643       263.0681                                 56              0 zea=vx>`  
   8 STANDARD       Infinity              0                           24.26983              0 C%_^0#8-0  
IMA STANDARD       Infinity                                          24.26983              0

經過不斷的努力,做了一些改進. J]uYXsC  
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Surf     Type         Radius      Thickness                Glass      Diameter          Conic etF?,^)h=g  
 OBJ STANDARD       Infinity       Infinity                                  0              0 K@xp
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   1 STANDARD       Infinity            600                                170              0 4eb<SNi  
   2 STANDARD          -2000           -580               MIRROR           420             -1 N{n}]Js1D-  
 STO STANDARD      -1884.757       397.7682               MIRROR      168.9907              0 Yh/-6wg  
   4 STANDARD       559.8055              4                N-BK7           100              0 it!i'lG  
   5 STANDARD       237.0107       6.225114                                100              0 /bA\O   
   6 STANDARD      -1486.626              6                N-BK7           100              0 Sd'Meebu  
   7 STANDARD      -319.3041       350.9258                                100              0 _DfI78`(  
   8 STANDARD       Infinity     0.04561954                           44.12979              0 9R.IYnq  
 IMA STANDARD       Infinity                                          44.12228              0 @~6A9Fr  

波像差真小啊！