[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 v0Ai!#  
&@% b?~  
基本條件是 +%Lt".o  
j1puB  
主鏡必須是拋物面 {4: -
0itG  
?Ml%$z@b?  
副鏡必須是球面 cGE=.  
!8Z2X!$m{<  
系統包含一組校正鏡 U!c]_q  
,M)k7t:  
口徑200mm以上 wqlcLIJPR  
d/B'[Ur  
焦比不限制 aXdf>2c{JD  
i s L{9^  
視角0.5度以上 [dj5$l|  
X"[dQ_o  
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. E &7@#'l  
Mlv<r=E  
g4:VR:o
  
e=t<H"&  
Surf     Type         Radius      Thickness                Glass      Diameter          Conic 2wx!Lpr<i_  
OBJ STANDARD       Infinity       Infinity                                  0              0 B(j02<-  
   1 STANDARD       Infinity            480                                220              0 #>8T*B  
STO STANDARD          -1500           -450               MIRROR           204             -1 u12zRdn  
   3 STANDARD      -1313.861       279.4093               MIRROR      88.07552              0 )n7|?@5U  
   4 STANDARD       167.5149              6                N-BK7            56              0 8zdT9y|Ig  
   5 STANDARD       123.4956       4.762038                                 56              0 $ph0ag+  
   6 STANDARD      -262.7873              4                N-BK7            56              0 3{<R5wUo"  
   7 STANDARD      -173.5643       263.0681                                 56              0 oi2J:Y4  
   8 STANDARD       Infinity              0                           24.26983              0 |9>*$Fe"  
IMA STANDARD       Infinity                                          24.26983              0

波像差真小啊！

經過不斷的努力,做了一些改進. B oqJ   
ZHCr2^w6  
G+VD8]!K1  
Surf     Type         Radius      Thickness                Glass      Diameter          Conic <W*xsh
n  
 OBJ STANDARD       Infinity       Infinity                                  0              0 :6Pnie
  
   1 STANDARD       Infinity            600                                170              0 `}gdN};  
   2 STANDARD          -2000           -580               MIRROR           420             -1 zI^Da!r.  
 STO STANDARD      -1884.757       397.7682               MIRROR      168.9907              0 dv, C6t2  
   4 STANDARD       559.8055              4                N-BK7           100              0 e0 u,zg+m  
   5 STANDARD       237.0107       6.225114                                100              0 n_P3\Y|  
   6 STANDARD      -1486.626              6                N-BK7           100              0 b#/i.!:a  
   7 STANDARD      -319.3041       350.9258                                100              0 ^O)ve^P  
   8 STANDARD       Infinity     0.04561954                           44.12979              0 \gItZ}+c4}  
 IMA STANDARD       Infinity                                          44.12228              0 R"3 M[^