[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 GKk>;X-  
rnkq.  
基本條件是 [|vE*&:uO  
<[oPh(!V  
主鏡必須是拋物面 \{GBaMwG~  
'Nqa=_<WW  
副鏡必須是球面 tM% f#O  
lDWg%pI+  
系統包含一組校正鏡 I7S#vIMXR.  
34Fc oud);  
口徑200mm以上 *EB`~s  
mY'c<>6t  
焦比不限制 fr19C%{  
=*[98
%b   
視角0.5度以上 z_ 01*O  
x!i(M>P  
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. Ir,3' G  
(C&Lpt_  
4
PcsU HR  
fYt y7  
Surf     Type         Radius      Thickness                Glass      Diameter          Conic liuw!
  
OBJ STANDARD       Infinity       Infinity                                  0              0 )' hOW
*v  
   1 STANDARD       Infinity            480                                220              0 W ZAkp|R  
STO STANDARD          -1500           -450               MIRROR           204             -1 y8!#G-
d5  
   3 STANDARD      -1313.861       279.4093               MIRROR      88.07552              0 O} &%R:  
   4 STANDARD       167.5149              6                N-BK7            56              0 ,$,c<M  
   5 STANDARD       123.4956       4.762038                                 56              0 6^Q/D7U;s  
   6 STANDARD      -262.7873              4                N-BK7            56              0 FG6bKvEQm^  
   7 STANDARD      -173.5643       263.0681                                 56              0 K<g<xW*X  
   8 STANDARD       Infinity              0                           24.26983              0 ov9+6'zya  
IMA STANDARD       Infinity                                          24.26983              0

經過不斷的努力,做了一些改進. D00v"yp%%  
#JD:i%  
G
Lpl  
Surf     Type         Radius      Thickness                Glass      Diameter          Conic -KA Y  
 OBJ STANDARD       Infinity       Infinity                                  0              0 v&]k8Hc-  
   1 STANDARD       Infinity            600                                170              0 Gp.XTz#=  
   2 STANDARD          -2000           -580               MIRROR           420             -1 ~B704i  
 STO STANDARD      -1884.757       397.7682               MIRROR      168.9907              0 mFa%d8Y  
   4 STANDARD       559.8055              4                N-BK7           100              0 N0POyd/rL  
   5 STANDARD       237.0107       6.225114                                100              0 dR|*VT\  
   6 STANDARD      -1486.626              6                N-BK7           100              0 |3SM  
   7 STANDARD      -319.3041       350.9258                                100              0 d&x #9ka  
   8 STANDARD       Infinity     0.04561954                           44.12979              0 =K:)%
Qh  
 IMA STANDARD       Infinity                                          44.12228              0 ,g~Iup  

波像差真小啊！