[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 Y(/VW&K&:  
E/_=0t  
基本條件是 NF0} eom  
qwA:o-q"  
主鏡必須是拋物面 z@&_3 Gl  
}mz4 3Sq<  
副鏡必須是球面 dOqwF iO  
q{c6DCc]\  
系統包含一組校正鏡 hvGb9  
0_Etm83Wq6  
口徑200mm以上 f&^K>Jt1@#  
l4u`R(!n5  
焦比不限制 av wU)6L  
qX:54$t  
視角0.5度以上 Oa7`Y`6  
k$o6~u 2&  
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. p=9G)VO  
Old5E&  
L<QqQ"`  
Yk<?HNf  
Surf     Type         Radius      Thickness                Glass      Diameter          Conic ^l_W9s  
OBJ STANDARD       Infinity       Infinity                                  0              0 yXrFH@3  
   1 STANDARD       Infinity            480                                220              0 'fcJ]%-=  
STO STANDARD          -1500           -450               MIRROR           204             -1 ^#exsXy  
   3 STANDARD      -1313.861       279.4093               MIRROR      88.07552              0 KWy4}7a@,s  
   4 STANDARD       167.5149              6                N-BK7            56              0 3,tKqR7g  
   5 STANDARD       123.4956       4.762038                                 56              0  UX2`x9  
   6 STANDARD      -262.7873              4                N-BK7            56              0 H*yX Iq:  
   7 STANDARD      -173.5643       263.0681                                 56              0 GC$Hp!H  
   8 STANDARD       Infinity              0                           24.26983              0 62%.ddM4  
IMA STANDARD       Infinity                                          24.26983              0

經過不斷的努力,做了一些改進. .1[K\t)
2  
m:)v>vu  
t]2~aK<]  
Surf     Type         Radius      Thickness                Glass      Diameter          Conic ^6Hfq^ejt  
 OBJ STANDARD       Infinity       Infinity                                  0              0 z6A
rSLlZ  
   1 STANDARD       Infinity            600                                170              0 q*mNVBy  
   2 STANDARD          -2000           -580               MIRROR           420             -1 2u*o/L+  
 STO STANDARD      -1884.757       397.7682               MIRROR      168.9907              0 *(PGLYK  
   4 STANDARD       559.8055              4                N-BK7           100              0 nRPy)L{  
   5 STANDARD       237.0107       6.225114                                100              0 @i$9c)D  
   6 STANDARD      -1486.626              6                N-BK7           100              0 k3}|^/bHJ  
   7 STANDARD      -319.3041       350.9258                                100              0 TmoODG
>@  
   8 STANDARD       Infinity     0.04561954                           44.12979              0 *y='0)[BD  
 IMA STANDARD       Infinity                                          44.12228              0 i~MCY.F  

波像差真小啊！