[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 J7mT&U&Ru  
<Z#u_:5@  
基本條件是 8xL-j2w  
qjTz]'^BpM  
主鏡必須是拋物面 ! 4i  
N}s[0s  
副鏡必須是球面 r:YAn^Lg  
S0"OU0`N  
系統包含一組校正鏡 T@k&YJ  
ty/jTo}  
口徑200mm以上 \`4}h[  
m>UJ; F  
焦比不限制 l*%?C*  
r;S%BFMJS  
視角0.5度以上 [[TB.'k  
Sgr<z d'b  
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. x\t>|DB  
7b Gzun&  
2]Y (<PC  
tF`>.=  
Surf     Type         Radius      Thickness                Glass      Diameter          Conic (-"A5(X:/  
OBJ STANDARD       Infinity       Infinity                                  0              0 /\Q{i#v  
   1 STANDARD       Infinity            480                                220              0 Gb~q:&IUr  
STO STANDARD          -1500           -450               MIRROR           204             -1 62Jn8DwAT  
   3 STANDARD      -1313.861       279.4093               MIRROR      88.07552              0 IK}T.*[  
   4 STANDARD       167.5149              6                N-BK7            56              0 i?
|K+"=D  
   5 STANDARD       123.4956       4.762038                                 56              0 '8%aq8  
   6 STANDARD      -262.7873              4                N-BK7            56              0 (U-p&q>z  
   7 STANDARD      -173.5643       263.0681                                 56              0 !nykq}kPN\  
   8 STANDARD       Infinity              0                           24.26983              0 m<OxO\Mpf  
IMA STANDARD       Infinity                                          24.26983              0

經過不斷的努力,做了一些改進.
J(l6(+8  
{0QA+[Yd&!  
R6M@pO  
Surf     Type         Radius      Thickness                Glass      Diameter          Conic 0+S:2i/G  
 OBJ STANDARD       Infinity       Infinity                                  0              0 ,U<Ku*}B  
   1 STANDARD       Infinity            600                                170              0 K1eoZ8=!  
   2 STANDARD          -2000           -580               MIRROR           420             -1 wvq<5gy}  
 STO STANDARD      -1884.757       397.7682               MIRROR      168.9907              0 mCq*@1Lp9  
   4 STANDARD       559.8055              4                N-BK7           100              0 6 a$%  
   5 STANDARD       237.0107       6.225114                                100              0 c9ghR0WM  
   6 STANDARD      -1486.626              6                N-BK7           100              0 C-2n2OM.  
   7 STANDARD      -319.3041       350.9258                                100              0 Gn_v}31d%  
   8 STANDARD       Infinity     0.04561954                           44.12979              0 neZ_TT/
3K  
 IMA STANDARD       Infinity                                          44.12228              0 4/d#)6  

波像差真小啊！