[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 0pK=o"^?@  
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基本條件是 -f3p U:G8  
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主鏡必須是拋物面 Tl%`P_J)-S  
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副鏡必須是球面 IshKH-  
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系統包含一組校正鏡 E-4b[xNj*+  
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口徑200mm以上 Ghu#XJB?  
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焦比不限制 !`k1:@NZ  
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視角0.5度以上 zpzK>DH(  
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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. 4qO+_!x{)  
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Surf     Type         Radius      Thickness                Glass      Diameter          Conic :yL] ;J  
OBJ STANDARD       Infinity       Infinity                                  0              0 \MsTB|Z  
   1 STANDARD       Infinity            480                                220              0 +Jlay1U&  
STO STANDARD          -1500           -450               MIRROR           204             -1 US+Q~GTA  
   3 STANDARD      -1313.861       279.4093               MIRROR      88.07552              0 X@'uy<tI-  
   4 STANDARD       167.5149              6                N-BK7            56              0 $I!XSz"/e  
   5 STANDARD       123.4956       4.762038                                 56              0 o@r7 n>G  
   6 STANDARD      -262.7873              4                N-BK7            56              0 5
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   7 STANDARD      -173.5643       263.0681                                 56              0 HD@$t)mn  
   8 STANDARD       Infinity              0                           24.26983              0 TcyNIx  
IMA STANDARD       Infinity                                          24.26983              0

經過不斷的努力,做了一些改進. w _u\pa  
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Surf     Type         Radius      Thickness                Glass      Diameter          Conic *zNYZ#  
 OBJ STANDARD       Infinity       Infinity                                  0              0 OBgkpx*Q  
   1 STANDARD       Infinity            600                                170              0 \/E>4)MDy  
   2 STANDARD          -2000           -580               MIRROR           420             -1 i}b${no  
 STO STANDARD      -1884.757       397.7682               MIRROR      168.9907              0 h-g+g#*  
   4 STANDARD       559.8055              4                N-BK7           100              0 sD<a+Lw}x  
   5 STANDARD       237.0107       6.225114                                100              0 3yANv?$a  
   6 STANDARD      -1486.626              6                N-BK7           100              0 C#QpQg2  
   7 STANDARD      -319.3041       350.9258                                100              0 3NZK*!@'  
   8 STANDARD       Infinity     0.04561954                           44.12979              0 kM!kD4&  
 IMA STANDARD       Infinity                                          44.12228              0 OL5v).Bb  

波像差真小啊！