[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 ng1E'c]0@  
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基本條件是 C;BO6$*_e  
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主鏡必須是拋物面 $S6(V}yh  
LRJX>+@  
副鏡必須是球面 `Skvqo(5:  
pzF_g-B  
系統包含一組校正鏡 (}A$4?  
f1'ByV'2  
口徑200mm以上 !sT>]e  
<5zR-UA>  
焦比不限制 ;z:Rj}l  
ti5fsc  
視角0.5度以上 BtJkvg(2]  
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以下是我的結果,目前覺得副鏡的口徑太大,不知道有無改進的可能. lu#a.41  
CsR[@&n'  
MK#   
IFLphm
5  
Surf     Type         Radius      Thickness                Glass      Diameter          Conic H
Sruue8  
OBJ STANDARD       Infinity       Infinity                                  0              0 {cdICWy(F3  
   1 STANDARD       Infinity            480                                220              0 :5kDc" =Z|  
STO STANDARD          -1500           -450               MIRROR           204             -1 (hc!!:N~q  
   3 STANDARD      -1313.861       279.4093               MIRROR      88.07552              0 b_+o1Zy`  
   4 STANDARD       167.5149              6                N-BK7            56              0 NEBhVh  
   5 STANDARD       123.4956       4.762038                                 56              0 Q2fxsa[  
   6 STANDARD      -262.7873              4                N-BK7            56              0 rZUTBLZ`j  
   7 STANDARD      -173.5643       263.0681                                 56              0 re/-Yu$'  
   8 STANDARD       Infinity              0                           24.26983              0 &8VH m?h  
IMA STANDARD       Infinity                                          24.26983              0

經過不斷的努力,做了一些改進. 'e:4  
<.`i,|?MHS  
WX Fm'5Vr  
Surf     Type         Radius      Thickness                Glass      Diameter          Conic .*NPoW4Kv  
 OBJ STANDARD       Infinity       Infinity                                  0              0 p;4
FZ$  
   1 STANDARD       Infinity            600                                170              0 $2FU<w$5  
   2 STANDARD          -2000           -580               MIRROR           420             -1 x|Uwk=;X|s  
 STO STANDARD      -1884.757       397.7682               MIRROR      168.9907              0 Km
x4bp4  
   4 STANDARD       559.8055              4                N-BK7           100              0 ]Mq-67  
   5 STANDARD       237.0107       6.225114                                100              0 {X?Aj >l  
   6 STANDARD      -1486.626              6                N-BK7           100              0 39^+;Mev  
   7 STANDARD      -319.3041       350.9258                                100              0 shB3[W{}!)  
   8 STANDARD       Infinity     0.04561954                           44.12979              0 f['I4 /o  
 IMA STANDARD       Infinity                                          44.12228              0 WG,
Il/  

波像差真小啊！