[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 M?49TOQA  
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基本條件是 rKc9b<Ir  
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主鏡必須是拋物面 %0?
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副鏡必須是球面 i"FtcP^  
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系統包含一組校正鏡 aKDKmHd  
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口徑200mm以上 2.y-48Nz  
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焦比不限制 ^CH=O|8j  
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視角0.5度以上 3
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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. zI uJ-8T"  
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Surf     Type         Radius      Thickness                Glass      Diameter          Conic VGN5<?PrN  
OBJ STANDARD       Infinity       Infinity                                  0              0 ]5cT cX;Z#  
   1 STANDARD       Infinity            480                                220              0 W*:.Gxv]  
STO STANDARD          -1500           -450               MIRROR           204             -1 Z\rwO>3  
   3 STANDARD      -1313.861       279.4093               MIRROR      88.07552              0 E&w7GZNt  
   4 STANDARD       167.5149              6                N-BK7            56              0 `(;m?<%  
   5 STANDARD       123.4956       4.762038                                 56              0 gJ+'W1$/  
   6 STANDARD      -262.7873              4                N-BK7            56              0 QIEJ6`  
   7 STANDARD      -173.5643       263.0681                                 56              0  K5 z<3+  
   8 STANDARD       Infinity              0                           24.26983              0 -i|}m++  
IMA STANDARD       Infinity                                          24.26983              0

經過不斷的努力,做了一些改進. WT=;:j  
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Surf     Type         Radius      Thickness                Glass      Diameter          Conic "+s++@ z  
 OBJ STANDARD       Infinity       Infinity                                  0              0 u#.2w)!D  
   1 STANDARD       Infinity            600                                170              0 oc`H}Wvn  
   2 STANDARD          -2000           -580               MIRROR           420             -1 Otuf]B^s  
 STO STANDARD      -1884.757       397.7682               MIRROR      168.9907              0 (A#^l=su  
   4 STANDARD       559.8055              4                N-BK7           100              0 ?a5!H*,  
   5 STANDARD       237.0107       6.225114                                100              0 ##*3bDf$-5  
   6 STANDARD      -1486.626              6                N-BK7           100              0 Y3b *a".X  
   7 STANDARD      -319.3041       350.9258                                100              0 @9s$4DS  
   8 STANDARD       Infinity     0.04561954                           44.12979              0 D,feF9  
 IMA STANDARD       Infinity                                          44.12228              0 7:1Lol-V  

波像差真小啊！