[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 ?`rAO#1  
][v]Nk  
基本條件是 ChG7>4:\  
^zQI_ydG  
主鏡必須是拋物面 yvoz 3_!  
o5?Y   
副鏡必須是球面 !h7.xl OpN  
Gw$5<%sB  
系統包含一組校正鏡 cS9jGD92  
-"dt3$ju  
口徑200mm以上 /0XMQy  
pLtw|S'4  
焦比不限制 +)"Rv%.  
ji1vLu4|t  
視角0.5度以上 /z*Z+OT2  
4F6aPo2  
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. >- \bLr  
4A!]kj5T  
3wq<@dRv4  
Bso#+v5  
Surf     Type         Radius      Thickness                Glass      Diameter          Conic lnyf
Aq}w  
OBJ STANDARD       Infinity       Infinity                                  0              0 F9u?+y-xb  
   1 STANDARD       Infinity            480                                220              0 Fds 11 /c7  
STO STANDARD          -1500           -450               MIRROR           204             -1 6~x'~T  
   3 STANDARD      -1313.861       279.4093               MIRROR      88.07552              0 =#S.t:HQ*  
   4 STANDARD       167.5149              6                N-BK7            56              0 daI_@kY"  
   5 STANDARD       123.4956       4.762038                                 56              0 ~! -JN}H m  
   6 STANDARD      -262.7873              4                N-BK7            56              0 R;c9)>8L  
   7 STANDARD      -173.5643       263.0681                                 56              0 r_#
dh  
   8 STANDARD       Infinity              0                           24.26983              0 JUpV(p"-r  
IMA STANDARD       Infinity                                          24.26983              0

經過不斷的努力,做了一些改進. T }}2J/sj  
`<C<[JP:o  
hzqJ!  
Surf     Type         Radius      Thickness                Glass      Diameter          Conic 69g{oo  
 OBJ STANDARD       Infinity       Infinity                                  0              0 d#g))f;  
   1 STANDARD       Infinity            600                                170              0 "jFf}"  
   2 STANDARD          -2000           -580               MIRROR           420             -1 ]%' AZ`8  
 STO STANDARD      -1884.757       397.7682               MIRROR      168.9907              0 %c }V/v_h  
   4 STANDARD       559.8055              4                N-BK7           100              0 o$rjGa l  
   5 STANDARD       237.0107       6.225114                                100              0 }Y~Dk]*  
   6 STANDARD      -1486.626              6                N-BK7           100              0 7>JTQ CJ  
   7 STANDARD      -319.3041       350.9258                                100              0 NBYJ'nA%;f  
   8 STANDARD       Infinity     0.04561954                           44.12979              0 +xFn~b/  
 IMA STANDARD       Infinity                                          44.12228              0 .,bpFcQ  

波像差真小啊！