[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 )M6w5g  
x8S7oO7  
基本條件是 z9FfU  
e/0
<[s*#Q  
主鏡必須是拋物面 ]QzGE8jp*  
[<DZ*|+  
副鏡必須是球面 ]E\n9X-{  
P"B0_EuR<T  
系統包含一組校正鏡 Ag{iq(X  
S S2FTb-m  
口徑200mm以上 ~HOy:1QhE=  
8GvJ0Jq}U  
焦比不限制 rE}%KsZ  
9E>xIJ@J2T  
視角0.5度以上 u%w`:v7Yo(  
=c/wplv*  
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. N[<\>Ps|u  
D6>HN
[D"  
$STaQ28C  
{ ^cV lC_  
Surf     Type         Radius      Thickness                Glass      Diameter          Conic >-H{Z{VDd  
OBJ STANDARD       Infinity       Infinity                                  0              0 `s\?w5[  
   1 STANDARD       Infinity            480                                220              0 87D*-Gw  
STO STANDARD          -1500           -450               MIRROR           204             -1 bbrXgQ`s+w  
   3 STANDARD      -1313.861       279.4093               MIRROR      88.07552              0 -$\+' \  
   4 STANDARD       167.5149              6                N-BK7            56              0 NR`C(^}  
   5 STANDARD       123.4956       4.762038                                 56              0 zuUW|r  
   6 STANDARD      -262.7873              4                N-BK7            56              0 W[Ls|<Q  
   7 STANDARD      -173.5643       263.0681                                 56              0 28 ?\  
   8 STANDARD       Infinity              0                           24.26983              0 q@[QjGj@  
IMA STANDARD       Infinity                                          24.26983              0

經過不斷的努力,做了一些改進. vS;RJg=  
Tp/6,EE  
,E S0NA  
Surf     Type         Radius      Thickness                Glass      Diameter          Conic -t!~%_WCv  
 OBJ STANDARD       Infinity       Infinity                                  0              0 Va"0>KX  
   1 STANDARD       Infinity            600                                170              0 J')o|5S1N  
   2 STANDARD          -2000           -580               MIRROR           420             -1 ag [ZW  
 STO STANDARD      -1884.757       397.7682               MIRROR      168.9907              0 Fs9!S a7v  
   4 STANDARD       559.8055              4                N-BK7           100              0 ]d$8f  
   5 STANDARD       237.0107       6.225114                                100              0 +$ 'Zf0U  
   6 STANDARD      -1486.626              6                N-BK7           100              0 hOjk3 k  
   7 STANDARD      -319.3041       350.9258                                100              0 lXW%FH6c+  
   8 STANDARD       Infinity     0.04561954                           44.12979              0 gb[5&>(#  
 IMA STANDARD       Infinity                                          44.12228              0 bRFLcM  

波像差真小啊！