[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 (?vKe5  
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基本條件是 aYmN' POi  
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主鏡必須是拋物面 k:yrh:JhB  
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副鏡必須是球面 CkeqK  
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系統包含一組校正鏡 d%lwg~@&|5  
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口徑200mm以上 b8O }XB  
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焦比不限制 hmES@^n!_  
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視角0.5度以上 Y- tK  
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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. bBp('oEJ
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Surf     Type         Radius      Thickness                Glass      Diameter          Conic nK>D& S_!  
OBJ STANDARD       Infinity       Infinity                                  0              0 QG]*v=Z  
   1 STANDARD       Infinity            480                                220              0 IuOQX}  
STO STANDARD          -1500           -450               MIRROR           204             -1 Uv|^k8(  
   3 STANDARD      -1313.861       279.4093               MIRROR      88.07552              0
zz[[9Am!  
   4 STANDARD       167.5149              6                N-BK7            56              0 3BK_$Fy  
   5 STANDARD       123.4956       4.762038                                 56              0 r.10b]b  
   6 STANDARD      -262.7873              4                N-BK7            56              0 Y}hz UKJ  
   7 STANDARD      -173.5643       263.0681                                 56              0 'l41];_  
   8 STANDARD       Infinity              0                           24.26983              0 G&,2>qxKR  
IMA STANDARD       Infinity                                          24.26983              0

經過不斷的努力,做了一些改進. dk9nhS+faJ  
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Surf     Type         Radius      Thickness                Glass      Diameter          Conic r]vD]  
 OBJ STANDARD       Infinity       Infinity                                  0              0 rO`nS<G  
   1 STANDARD       Infinity            600                                170              0 3((53@s98  
   2 STANDARD          -2000           -580               MIRROR           420             -1 Oz1ou[8k  
 STO STANDARD      -1884.757       397.7682               MIRROR      168.9907              0 .5m^)hi  
   4 STANDARD       559.8055              4                N-BK7           100              0 fMFlY%@t  
   5 STANDARD       237.0107       6.225114                                100              0 07dUBoq  
   6 STANDARD      -1486.626              6                N-BK7           100              0 E~|`Q6&Y  
   7 STANDARD      -319.3041       350.9258                                100              0 'd@Vusq}2  
   8 STANDARD       Infinity     0.04561954                           44.12979              0 SY}iU@xo  
 IMA STANDARD       Infinity                                          44.12228              0 WsCzC_'j.  

波像差真小啊！