[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 md`"zV  
V/,F6  
基本條件是 T9O3$1eqfo  
?'r=>'6D  
主鏡必須是拋物面 4n,>EA85  
ubQZTAx  
副鏡必須是球面 1;N5@0%p  
=^S1+B MY-  
系統包含一組校正鏡 z~O:w'(g  
!1cVg ls|  
口徑200mm以上 jK9#. 0  
Sk|DVV$  
焦比不限制 SK G!DKQ  
SdQ"S-H  
視角0.5度以上 cfA)Ui  
!f!HVna  
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. ~_Q1+ax}  
G[M{TS3&Ds  
B~t[Gy  
d\A!5/LG  
Surf     Type         Radius      Thickness                Glass      Diameter          Conic ;<)<4N"  
OBJ STANDARD       Infinity       Infinity                                  0              0 EHqcQx`K_  
   1 STANDARD       Infinity            480                                220              0 s2ixiv=  
STO STANDARD          -1500           -450               MIRROR           204             -1 Cqc5jx0)  
   3 STANDARD      -1313.861       279.4093               MIRROR      88.07552              0 -TU^*  
   4 STANDARD       167.5149              6                N-BK7            56              0 f15f)P  
   5 STANDARD       123.4956       4.762038                                 56              0 z*B-`i.  
   6 STANDARD      -262.7873              4                N-BK7            56              0 K \_JG$(9  
   7 STANDARD      -173.5643       263.0681                                 56              0 (nLT8{>0  
   8 STANDARD       Infinity              0                           24.26983              0 uKE?VNC]  
IMA STANDARD       Infinity                                          24.26983              0

波像差真小啊！

經過不斷的努力,做了一些改進. %(YU*Tf~  
xixdv{M<FF  
)
p!.V(,  
Surf     Type         Radius      Thickness                Glass      Diameter          Conic T;`2t;  
 OBJ STANDARD       Infinity       Infinity                                  0              0 4Mck/i2  
   1 STANDARD       Infinity            600                                170              0 Zc|V7+Yx  
   2 STANDARD          -2000           -580               MIRROR           420             -1 jL]Y;T8  
 STO STANDARD      -1884.757       397.7682               MIRROR      168.9907              0 /(jG9RM  
   4 STANDARD       559.8055              4                N-BK7           100              0 5 ^867  
   5 STANDARD       237.0107       6.225114                                100              0 ##r9/`A  
   6 STANDARD      -1486.626              6                N-BK7           100              0 XT`
2Z=  
   7 STANDARD      -319.3041       350.9258                                100              0 Xdl7'~k  
   8 STANDARD       Infinity     0.04561954                           44.12979              0 u0{R;)  
 IMA STANDARD       Infinity                                          44.12228              0 e gdbv