[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 $z1W0  
!97U2L4  
基本條件是 *[XVkt`H  
Buxn!s  
主鏡必須是拋物面 cf\PG&S  
vP k\b 3E  
副鏡必須是球面 <HYK9{Q  
Oe#*-  
系統包含一組校正鏡 >.sdLA Si  
jVW .=FK  
口徑200mm以上 Z\1*g k  
o 8fB  
焦比不限制 R
\i8O^[  
[Eq7!_3  
視角0.5度以上 FE'|wf  
A(Tqf.,G  
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. zY11.!2  
YgiLfz iT  
LUPh!)8  
m!'moumL;  
Surf     Type         Radius      Thickness                Glass      Diameter          Conic V1yY>  
OBJ STANDARD       Infinity       Infinity                                  0              0 "pZvV0'  
   1 STANDARD       Infinity            480                                220              0 4O I''i  
STO STANDARD          -1500           -450               MIRROR           204             -1 Ai*R%#  
   3 STANDARD      -1313.861       279.4093               MIRROR      88.07552              0 HACY  
   4 STANDARD       167.5149              6                N-BK7            56              0 QaVxP1V#U  
   5 STANDARD       123.4956       4.762038                                 56              0 kdq<)>"  
   6 STANDARD      -262.7873              4                N-BK7            56              0 v d{`*|x  
   7 STANDARD      -173.5643       263.0681                                 56              0 hq[:U?!Tt  
   8 STANDARD       Infinity              0                           24.26983              0 ! .q,m>?+  
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. LDgGVl  
50R&;+b  
K9=f`JI9  
Surf     Type         Radius      Thickness                Glass      Diameter          Conic mM;5UPbZ  
 OBJ STANDARD       Infinity       Infinity                                  0              0 5<77o|  
   1 STANDARD       Infinity            600                                170              0 sMDHg
 
   2 STANDARD          -2000           -580               MIRROR           420             -1 hhr!FQ.+/  
 STO STANDARD      -1884.757       397.7682               MIRROR      168.9907              0 8r\;8all  
   4 STANDARD       559.8055              4                N-BK7           100              0 y3Q2d7G  
   5 STANDARD       237.0107       6.225114                                100              0 Ap)pOD7  
   6 STANDARD      -1486.626              6                N-BK7           100              0 %SC%#_7  
   7 STANDARD      -319.3041       350.9258                                100              0 -oMp@2\e  
   8 STANDARD       Infinity     0.04561954                           44.12979              0 EHlkt,h*  
 IMA STANDARD       Infinity                                          44.12228              0 TD^w|U.