[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 ~bZ=]i  

,*iA38d.!  
基本條件是 M?lh1Yu"  
WrGA7&!+  
主鏡必須是拋物面 `sKyvPtG  
M,fL(b;2  
副鏡必須是球面 Oin9lg-jR  
=3
X>Ur  
系統包含一組校正鏡 :$"{-n  
I&+.IK_  
口徑200mm以上 JjS+'A$A5  
8vVE  
焦比不限制 ~`AB-0t.u  
/Q3>w-h  
視角0.5度以上 <}J!_$A  
'V7LL1K^>  
以下是我的結果,目前覺得副鏡的口徑太大,不知道有無改進的可能. -i8KJzPL f  
z&gmaYwq  
FY'0?CT$  

KdCrI@^  
Surf     Type         Radius      Thickness                Glass      Diameter          Conic Jb"FY:/Qv+  
OBJ STANDARD       Infinity       Infinity                                  0              0 {\(G^B*\  
   1 STANDARD       Infinity            480                                220              0 *|=D 0  
STO STANDARD          -1500           -450               MIRROR           204             -1 Q|)>9m!tt  
   3 STANDARD      -1313.861       279.4093               MIRROR      88.07552              0 !
}!KT(%%  
   4 STANDARD       167.5149              6                N-BK7            56              0 ceG\Q2  
   5 STANDARD       123.4956       4.762038                                 56              0 NwF"Zh5eMW  
   6 STANDARD      -262.7873              4                N-BK7            56              0 nNCR5&,q  
   7 STANDARD      -173.5643       263.0681                                 56              0 |Ml~Pmpp  
   8 STANDARD       Infinity              0                           24.26983              0 =c@hE'{
 
IMA STANDARD       Infinity                                          24.26983              0

經過不斷的努力,做了一些改進. V<WWtu;3  
)s>|;K{  
oL~1M=r  
Surf     Type         Radius      Thickness                Glass      Diameter          Conic ,IhQ%)l  
 OBJ STANDARD       Infinity       Infinity                                  0              0 M;XU"8  
   1 STANDARD       Infinity            600                                170              0 (72%au  
   2 STANDARD          -2000           -580               MIRROR           420             -1 ?xwi2<zz  
 STO STANDARD      -1884.757       397.7682               MIRROR      168.9907              0 0dwD ?GG2  
   4 STANDARD       559.8055              4                N-BK7           100              0 2(!W 9#]  
   5 STANDARD       237.0107       6.225114                                100              0 =EVB?k ,  
   6 STANDARD      -1486.626              6                N-BK7           100              0 (tA[]ne2  
   7 STANDARD      -319.3041       350.9258                                100              0 5:38}p9`
 
   8 STANDARD       Infinity     0.04561954                           44.12979              0 s
[7$%|~W  
 IMA STANDARD       Infinity                                          44.12228              0 pzRVX8  

波像差真小啊！