[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 G]l/L\{  
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基本條件是 f[zKA{R  
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主鏡必須是拋物面 \ bNDeA&l  
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副鏡必須是球面 [9EL[}  
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系統包含一組校正鏡 o)\EfPT  
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口徑200mm以上 g3n>}\xG>  
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焦比不限制 bAY>o
 
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視角0.5度以上 cL%eP.  
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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. mznE Cy  
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Surf     Type         Radius      Thickness                Glass      Diameter          Conic g[2[ zIB=  
OBJ STANDARD       Infinity       Infinity                                  0              0 C/"Wh=h6  
   1 STANDARD       Infinity            480                                220              0 I~ SFY>s  
STO STANDARD          -1500           -450               MIRROR           204             -1 Y0'~u+KS`5  
   3 STANDARD      -1313.861       279.4093               MIRROR      88.07552              0 b4^a zY  
   4 STANDARD       167.5149              6                N-BK7            56              0 1 xrmmK  
   5 STANDARD       123.4956       4.762038                                 56              0 pv|D{39Hs  
   6 STANDARD      -262.7873              4                N-BK7            56              0 ZCuh^  
   7 STANDARD      -173.5643       263.0681                                 56              0 (>D{"}  
   8 STANDARD       Infinity              0                           24.26983              0 &)Wm rF  
IMA STANDARD       Infinity                                          24.26983              0

經過不斷的努力,做了一些改進. 1~q|
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Surf     Type         Radius      Thickness                Glass      Diameter          Conic Ey;uaqt  
 OBJ STANDARD       Infinity       Infinity                                  0              0 @(A[H^E  
   1 STANDARD       Infinity            600                                170              0 `=3:*.T*  
   2 STANDARD          -2000           -580               MIRROR           420             -1 ',p`B-dw  
 STO STANDARD      -1884.757       397.7682               MIRROR      168.9907              0 F&lvofy23  
   4 STANDARD       559.8055              4                N-BK7           100              0 ebS>_jD  
   5 STANDARD       237.0107       6.225114                                100              0 &De&ZypU  
   6 STANDARD      -1486.626              6                N-BK7           100              0 oUBn:Ir@  
   7 STANDARD      -319.3041       350.9258                                100              0 e[7n`ka '  
   8 STANDARD       Infinity     0.04561954                           44.12979              0 +H~})PeQ  
 IMA STANDARD       Infinity                                          44.12228              0 LN?W~^gsR  

波像差真小啊！