[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 )u)=@@k21  
wSTulo:9  
基本條件是 pN%&`]Wev  
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主鏡必須是拋物面 .V?:&_}_I6  
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副鏡必須是球面 =Ph8&l7~sp  
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系統包含一組校正鏡 *U?O4E9  
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口徑200mm以上 V2YK T,5  
200yN+ec  
焦比不限制 "ZuuSi  
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視角0.5度以上 2@&r!Q|1vR  
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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. E7fx4kV  
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Surf     Type         Radius      Thickness                Glass      Diameter          Conic #WpkL]g2+%  
OBJ STANDARD       Infinity       Infinity                                  0              0 =l,P'E  
   1 STANDARD       Infinity            480                                220              0 Mqf Ns<2  
STO STANDARD          -1500           -450               MIRROR           204             -1 VM"cpC_8  
   3 STANDARD      -1313.861       279.4093               MIRROR      88.07552              0 &NE e-cb
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   4 STANDARD       167.5149              6                N-BK7            56              0 4q$~3C[  
   5 STANDARD       123.4956       4.762038                                 56              0 /Rp]"S vt  
   6 STANDARD      -262.7873              4                N-BK7            56              0 b'H'QY   
   7 STANDARD      -173.5643       263.0681                                 56              0 d2 ^}ooE  
   8 STANDARD       Infinity              0                           24.26983              0 RgE`Hr  
IMA STANDARD       Infinity                                          24.26983              0

經過不斷的努力,做了一些改進. CU$khz"  
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Surf     Type         Radius      Thickness                Glass      Diameter          Conic qZoDeN-CC  
 OBJ STANDARD       Infinity       Infinity                                  0              0 b
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   1 STANDARD       Infinity            600                                170              0 Er~17$b  
   2 STANDARD          -2000           -580               MIRROR           420             -1 ^S#;  
 STO STANDARD      -1884.757       397.7682               MIRROR      168.9907              0 &}ZmT>q`$  
   4 STANDARD       559.8055              4                N-BK7           100              0 IS C.~q2  
   5 STANDARD       237.0107       6.225114                                100              0 f49kf**  
   6 STANDARD      -1486.626              6                N-BK7           100              0 T}~TW26v  
   7 STANDARD      -319.3041       350.9258                                100              0 ~{c ?-qb  
   8 STANDARD       Infinity     0.04561954                           44.12979              0 VFT@Ic#]  
 IMA STANDARD       Infinity                                          44.12228              0 wZrFu(_  

波像差真小啊！