[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 #&K}w0}k  
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基本條件是 bi-z%!Z  
a`C2:Z23(#  
主鏡必須是拋物面 0NvicZ7VR  
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副鏡必須是球面 bQ0+Y?,+/  
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系統包含一組校正鏡 a?W<<9]  
k$7Kz"  
口徑200mm以上 4a.8n!sys  
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焦比不限制 |NFDrm  
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視角0.5度以上 ~sWXd~\  
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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. >ca`0gu  
 [cfXcl  
73ABop  
%;GRR (K  
Surf     Type         Radius      Thickness                Glass      Diameter          Conic 2ryg3%+O  
OBJ STANDARD       Infinity       Infinity                                  0              0 bl|)/)6o  
   1 STANDARD       Infinity            480                                220              0 G{a_\'7  
STO STANDARD          -1500           -450               MIRROR           204             -1 PL3oV<\4s>  
   3 STANDARD      -1313.861       279.4093               MIRROR      88.07552              0 pWoeF=+y]W  
   4 STANDARD       167.5149              6                N-BK7            56              0  bWZzb&  
   5 STANDARD       123.4956       4.762038                                 56              0 dA(+02U/.  
   6 STANDARD      -262.7873              4                N-BK7            56              0 I]91{dq  
   7 STANDARD      -173.5643       263.0681                                 56              0 MBol_#H  
   8 STANDARD       Infinity              0                           24.26983              0 WBD"
d<>'  
IMA STANDARD       Infinity                                          24.26983              0

經過不斷的努力,做了一些改進. p{O@ts:  
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poS=8mN8;  
Surf     Type         Radius      Thickness                Glass      Diameter          Conic O|&SL03Z8  
 OBJ STANDARD       Infinity       Infinity                                  0              0 VVi3g
  
   1 STANDARD       Infinity            600                                170              0 jG/@kh*m  
   2 STANDARD          -2000           -580               MIRROR           420             -1 ua%j
}%G(  
 STO STANDARD      -1884.757       397.7682               MIRROR      168.9907              0 r]bG,?|  
   4 STANDARD       559.8055              4                N-BK7           100              0 7n'Ww=ttI  
   5 STANDARD       237.0107       6.225114                                100              0 ?#/~BZR!  
   6 STANDARD      -1486.626              6                N-BK7           100              0 f2i9UZ$=e!  
   7 STANDARD      -319.3041       350.9258                                100              0 Vx=tP.BO]  
   8 STANDARD       Infinity     0.04561954                           44.12979              0 T2ZN=)xZ1  
 IMA STANDARD       Infinity                                          44.12228              0 <e$%m(]  

波像差真小啊！