[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 ar R)]gk 7  
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基本條件是 ~G,n>  
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主鏡必須是拋物面 I9TOBn|6  
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副鏡必須是球面 e~jp< 4  
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系統包含一組校正鏡 SkVW8n*s  
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口徑200mm以上 {'EQ%H$q  
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焦比不限制 Y[@$1{YS  
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視角0.5度以上 `G6Nk@9.  
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以下是我的結果,目前覺得副鏡的口徑太大,不知道有無改進的可能. NkA|T1w7  
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Surf     Type         Radius      Thickness                Glass      Diameter          Conic T^%$  
OBJ STANDARD       Infinity       Infinity                                  0              0 #|xK>;  
   1 STANDARD       Infinity            480                                220              0 d%\en&:la  
STO STANDARD          -1500           -450               MIRROR           204             -1 cea%M3  
   3 STANDARD      -1313.861       279.4093               MIRROR      88.07552              0 ){ArZjG>  
   4 STANDARD       167.5149              6                N-BK7            56              0 Z[[@O  
   5 STANDARD       123.4956       4.762038                                 56              0 `gSqwN<x%  
   6 STANDARD      -262.7873              4                N-BK7            56              0 ="JLUq*]s  
   7 STANDARD      -173.5643       263.0681                                 56              0 CZuV{Oh}?  
   8 STANDARD       Infinity              0                           24.26983              0 X70G@-w  
IMA STANDARD       Infinity                                          24.26983              0

經過不斷的努力,做了一些改進. z%Pbs[*C  
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Surf     Type         Radius      Thickness                Glass      Diameter          Conic U bUl]  
 OBJ STANDARD       Infinity       Infinity                                  0              0 ;-Fr^|do y  
   1 STANDARD       Infinity            600                                170              0 ]A+q:kP  
   2 STANDARD          -2000           -580               MIRROR           420             -1 zkHwoAD;t8  
 STO STANDARD      -1884.757       397.7682               MIRROR      168.9907              0 5Arx"=c  
   4 STANDARD       559.8055              4                N-BK7           100              0 TY6 D.ikA  
   5 STANDARD       237.0107       6.225114                                100              0 0n` 1GU)W  
   6 STANDARD      -1486.626              6                N-BK7           100              0 Y??
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   7 STANDARD      -319.3041       350.9258                                100              0  ;j|T#-.  
   8 STANDARD       Infinity     0.04561954                           44.12979              0 ?nN3K   
 IMA STANDARD       Infinity                                          44.12228              0 x;w&JS1V  

波像差真小啊！