[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 .5ingB3%  
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基本條件是 ^[qmELW#7  
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主鏡必須是拋物面 hV=)T^Q  
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副鏡必須是球面 @Vb-BC,  
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系統包含一組校正鏡
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口徑200mm以上 lIOLR-:4j  
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焦比不限制 -ud!j  
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視角0.5度以上 a&y%|Gs^f  
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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. 4'X^YBm  
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Surf     Type         Radius      Thickness                Glass      Diameter          Conic (c[|k  
OBJ STANDARD       Infinity       Infinity                                  0              0 nwV\[E  
   1 STANDARD       Infinity            480                                220              0 N^`F_R1Z  
STO STANDARD          -1500           -450               MIRROR           204             -1 L4Kkbt<x  
   3 STANDARD      -1313.861       279.4093               MIRROR      88.07552              0 >i`'e~%  
   4 STANDARD       167.5149              6                N-BK7            56              0 A:;KU  
   5 STANDARD       123.4956       4.762038                                 56              0 NCl={O9<j  
   6 STANDARD      -262.7873              4                N-BK7            56              0 T.&^1qWWA  
   7 STANDARD      -173.5643       263.0681                                 56              0 4'_uN$${$  
   8 STANDARD       Infinity              0                           24.26983              0 f+gyJ#R`  
IMA STANDARD       Infinity                                          24.26983              0

經過不斷的努力,做了一些改進. f,PFvT$5e  
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Surf     Type         Radius      Thickness                Glass      Diameter          Conic /koNcpJ  
 OBJ STANDARD       Infinity       Infinity                                  0              0 #p*OLQ3~  
   1 STANDARD       Infinity            600                                170              0 y]M/oH  
   2 STANDARD          -2000           -580               MIRROR           420             -1 N.BD]_C  
 STO STANDARD      -1884.757       397.7682               MIRROR      168.9907              0 >l
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   4 STANDARD       559.8055              4                N-BK7           100              0 qFf'RgUtP  
   5 STANDARD       237.0107       6.225114                                100              0 j}S  
   6 STANDARD      -1486.626              6                N-BK7           100              0 C6O1ype  
   7 STANDARD      -319.3041       350.9258                                100              0  3]<$;[Q  
   8 STANDARD       Infinity     0.04561954                           44.12979              0 .ay K+6I  
 IMA STANDARD       Infinity                                          44.12228              0 jw#'f%*  

波像差真小啊！