[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 @Z+(J:Grm5  
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基本條件是 tNbL)  
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主鏡必須是拋物面 w]ihGh  
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副鏡必須是球面 ^X\{MW'>4  
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系統包含一組校正鏡 RCC~#b
b  
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口徑200mm以上 C@F3iwTtp  
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焦比不限制 h.t2;O,b  
^630%YO  
視角0.5度以上 B[IqLD'6  
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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. Y I?4e7Z+  
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Surf     Type         Radius      Thickness                Glass      Diameter          Conic _GtG8ebr  
OBJ STANDARD       Infinity       Infinity                                  0              0 5^0K5R6GQf  
   1 STANDARD       Infinity            480                                220              0 A5q%ytI  
STO STANDARD          -1500           -450               MIRROR           204             -1 `21$e  
   3 STANDARD      -1313.861       279.4093               MIRROR      88.07552              0 _/pdZM,V  
   4 STANDARD       167.5149              6                N-BK7            56              0 k2Dq~zn  
   5 STANDARD       123.4956       4.762038                                 56              0 gI5Fzk@:  
   6 STANDARD      -262.7873              4                N-BK7            56              0 *Q`y'6S  
   7 STANDARD      -173.5643       263.0681                                 56              0 .>^iU}  
   8 STANDARD       Infinity              0                           24.26983              0 "raC?H  
IMA STANDARD       Infinity                                          24.26983              0

波像差真小啊！

經過不斷的努力,做了一些改進. .7EZB  
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Surf     Type         Radius      Thickness                Glass      Diameter          Conic 7Yjxx+X9  
 OBJ STANDARD       Infinity       Infinity                                  0              0 T1}9^3T?{  
   1 STANDARD       Infinity            600                                170              0 S3(2.c~  
   2 STANDARD          -2000           -580               MIRROR           420             -1 *;I F^u1  
 STO STANDARD      -1884.757       397.7682               MIRROR      168.9907              0 WP-'gC6K=  
   4 STANDARD       559.8055              4                N-BK7           100              0 }:5>1FfX=  
   5 STANDARD       237.0107       6.225114                                100              0
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   6 STANDARD      -1486.626              6                N-BK7           100              0 Q, !b  
   7 STANDARD      -319.3041       350.9258                                100              0 Gr a(DGX  
   8 STANDARD       Infinity     0.04561954                           44.12979              0 ^"Nsb&  
 IMA STANDARD       Infinity                                          44.12228              0 rH<iUiA?O