[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 IoJI|lP  
&l]F&-  
基本條件是 9-{+U,3)  
.hxFFk%5  
主鏡必須是拋物面 VT4>6u}  
H.XyNtJ  
副鏡必須是球面 K<::M3eQ  
k"gm;,`  
系統包含一組校正鏡 hy;V~J#  
eDP&W$s#  
口徑200mm以上 &F:.V$  
Hs8JJGXWB  
焦比不限制 tzd!r7  
ZDzG8E0Sq  
視角0.5度以上 H'udxPF  
A9@coP5  
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. 6l2O>V  
l3^'bp6HQ  
8$]SvfX  
x?B`p"ifS  
Surf     Type         Radius      Thickness                Glass      Diameter          Conic q:M'|5P  
OBJ STANDARD       Infinity       Infinity                                  0              0 %hBwc#^  
   1 STANDARD       Infinity            480                                220              0 h(AL\9{=}  
STO STANDARD          -1500           -450               MIRROR           204             -1 g
|| q 3  
   3 STANDARD      -1313.861       279.4093               MIRROR      88.07552              0 :d35?[  
   4 STANDARD       167.5149              6                N-BK7            56              0 eQ)*jeD  
   5 STANDARD       123.4956       4.762038                                 56              0 x2&5zp  
   6 STANDARD      -262.7873              4                N-BK7            56              0 _8y4U  
   7 STANDARD      -173.5643       263.0681                                 56              0 f ]_ki  
   8 STANDARD       Infinity              0                           24.26983              0 >r(`4
M:  
IMA STANDARD       Infinity                                          24.26983              0

經過不斷的努力,做了一些改進. 3'i(wI~
<[  
P4{~fh(  
e9/Mjq\  
Surf     Type         Radius      Thickness                Glass      Diameter          Conic 0!0o[3*  
 OBJ STANDARD       Infinity       Infinity                                  0              0 Sa@'?ApH  
   1 STANDARD       Infinity            600                                170              0 W?kJ+1"(  
   2 STANDARD          -2000           -580               MIRROR           420             -1 tEo-Mj5:  
 STO STANDARD      -1884.757       397.7682               MIRROR      168.9907              0 ]2|fc5G'  
   4 STANDARD       559.8055              4                N-BK7           100              0 &\cS{35  
   5 STANDARD       237.0107       6.225114                                100              0 A*/8j\{n  
   6 STANDARD      -1486.626              6                N-BK7           100              0 za 7+xF  
   7 STANDARD      -319.3041       350.9258                                100              0 I7=A
!C"  
   8 STANDARD       Infinity     0.04561954                           44.12979              0 \ %MsG  
 IMA STANDARD       Infinity                                          44.12228              0 8*#$3e  

波像差真小啊！