[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 fYR*B0tu  
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基本條件是 :;S]jNy}j)  
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主鏡必須是拋物面 pzP~,cdf  
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副鏡必須是球面 s('<ms  
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系統包含一組校正鏡 pDO&I]S`q0  
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口徑200mm以上 %:2<'s2Si  
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焦比不限制 , [xDNl[Y|  
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視角0.5度以上 /ov&h;  
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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. gN|[n.W4  
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Surf     Type         Radius      Thickness                Glass      Diameter          Conic GtRc7,  
OBJ STANDARD       Infinity       Infinity                                  0              0 UGK4uK+I`  
   1 STANDARD       Infinity            480                                220              0 V8w!yc  
STO STANDARD          -1500           -450               MIRROR           204             -1 tY^MP5*  
   3 STANDARD      -1313.861       279.4093               MIRROR      88.07552              0 [!B($c|\  
   4 STANDARD       167.5149              6                N-BK7            56              0 R87-L*9B^0  
   5 STANDARD       123.4956       4.762038                                 56              0 p9ligs7V'  
   6 STANDARD      -262.7873              4                N-BK7            56              0 $bRakF1'S  
   7 STANDARD      -173.5643       263.0681                                 56              0 3>Ts7 wM  
   8 STANDARD       Infinity              0                           24.26983              0 *Y'@|xf*  
IMA STANDARD       Infinity                                          24.26983              0

經過不斷的努力,做了一些改進. EugQr<sM#  
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Surf     Type         Radius      Thickness                Glass      Diameter          Conic v0EF?$Wo  
 OBJ STANDARD       Infinity       Infinity                                  0              0 M{#  
   1 STANDARD       Infinity            600                                170              0 1<Fh aK  
   2 STANDARD          -2000           -580               MIRROR           420             -1 L'XX++2  
 STO STANDARD      -1884.757       397.7682               MIRROR      168.9907              0 *~b3FLzq  
   4 STANDARD       559.8055              4                N-BK7           100              0 6*3J3Lc_<  
   5 STANDARD       237.0107       6.225114                                100              0 Q"
UWh~  
   6 STANDARD      -1486.626              6                N-BK7           100              0 }1<_  
   7 STANDARD      -319.3041       350.9258                                100              0 H"hL+F^  
   8 STANDARD       Infinity     0.04561954                           44.12979              0 N<bNJD}  
 IMA STANDARD       Infinity                                          44.12228              0 Y{yN*9a79  

波像差真小啊！