[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 \ov>?5  
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基本條件是 4_r8ynq{z  
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主鏡必須是拋物面 hn!$?Vo.  
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副鏡必須是球面 *p.ELI1IC  
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系統包含一組校正鏡 u!L8Sv  
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口徑200mm以上 UxzwgVT  
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焦比不限制 <!DOCvd
 
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視角0.5度以上 Dq2eX;c@  
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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. mjs*Z{_F^  
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Surf     Type         Radius      Thickness                Glass      Diameter          Conic |G%MiYd  
OBJ STANDARD       Infinity       Infinity                                  0              0 ~xvQ?c?-  
   1 STANDARD       Infinity            480                                220              0 kAy.o  
STO STANDARD          -1500           -450               MIRROR           204             -1 1egryp  
   3 STANDARD      -1313.861       279.4093               MIRROR      88.07552              0 .iew5.eB+  
   4 STANDARD       167.5149              6                N-BK7            56              0 ,FBF;zED  
   5 STANDARD       123.4956       4.762038                                 56              0 tQ2*kE  
   6 STANDARD      -262.7873              4                N-BK7            56              0 Z$WT ~V  
   7 STANDARD      -173.5643       263.0681                                 56              0 `5GJ,*{z  
   8 STANDARD       Infinity              0                           24.26983              0 xZ9y*Gv\=  
IMA STANDARD       Infinity                                          24.26983              0

經過不斷的努力,做了一些改進. y>~KeUC  
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Surf     Type         Radius      Thickness                Glass      Diameter          Conic Y%&6qt G  
 OBJ STANDARD       Infinity       Infinity                                  0              0 ;'<K}h
 
   1 STANDARD       Infinity            600                                170              0 5<#H=A~(  
   2 STANDARD          -2000           -580               MIRROR           420             -1 y*7ht{B  
 STO STANDARD      -1884.757       397.7682               MIRROR      168.9907              0 Y[x ^59  
   4 STANDARD       559.8055              4                N-BK7           100              0 ]j{S' cz  
   5 STANDARD       237.0107       6.225114                                100              0 <!w-op2@ir  
   6 STANDARD      -1486.626              6                N-BK7           100              0 \XB71DUF  
   7 STANDARD      -319.3041       350.9258                                100              0 ec]ksw6T+  
   8 STANDARD       Infinity     0.04561954                           44.12979              0  |u$AzI  
 IMA STANDARD       Infinity                                          44.12228              0 -rH3rKtf~  

波像差真小啊！