[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 5`p>BJ+n  
LZ<^b6Dxk  
基本條件是 V?&P).5)  
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主鏡必須是拋物面 ]'5 G/H5?;  
Er@OmNT  
副鏡必須是球面 17F<vo>l%  
"WZ|  
系統包含一組校正鏡 7mtX/w9  
!q5qA*  
口徑200mm以上 p,7, tx  
z4{:X Da  
焦比不限制 2sH1),\  
5&TH\2u  
視角0.5度以上 j9~lf  
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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. JasA w7  
4Be\5Byr  
FA!!S`{\  
tR(nD UHV5  
Surf     Type         Radius      Thickness                Glass      Diameter          Conic ~DP_1V?  
OBJ STANDARD       Infinity       Infinity                                  0              0 vW4n>h}]  
   1 STANDARD       Infinity            480                                220              0 KvXFzx|A  
STO STANDARD          -1500           -450               MIRROR           204             -1 3@\J#mR  
   3 STANDARD      -1313.861       279.4093               MIRROR      88.07552              0 R*DQLBWc  
   4 STANDARD       167.5149              6                N-BK7            56              0 hGJANA  
   5 STANDARD       123.4956       4.762038                                 56              0 .FC|~Z1T<F  
   6 STANDARD      -262.7873              4                N-BK7            56              0 uYC1}Y5N  
   7 STANDARD      -173.5643       263.0681                                 56              0 pT/z`o$#V  
   8 STANDARD       Infinity              0                           24.26983              0 .I.B,wH8  
IMA STANDARD       Infinity                                          24.26983              0

經過不斷的努力,做了一些改進. F?[1m2  
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V>/,&~0  
Surf     Type         Radius      Thickness                Glass      Diameter          Conic x"!`JDsS  
 OBJ STANDARD       Infinity       Infinity                                  0              0 YmOj.Q&  
   1 STANDARD       Infinity            600                                170              0 m'QG{f  
   2 STANDARD          -2000           -580               MIRROR           420             -1 .+kg1=s  
 STO STANDARD      -1884.757       397.7682               MIRROR      168.9907              0 NfnPXsad  
   4 STANDARD       559.8055              4                N-BK7           100              0 V0BT./ B\<  
   5 STANDARD       237.0107       6.225114                                100              0 p]ujip  
   6 STANDARD      -1486.626              6                N-BK7           100              0 ==Xy'n9'  
   7 STANDARD      -319.3041       350.9258                                100              0 N`?|~g3  
   8 STANDARD       Infinity     0.04561954                           44.12979              0 zw+RDo  
 IMA STANDARD       Infinity                                          44.12228              0 v>j,8E  

波像差真小啊！