[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 uB#B\i  
xfF&$K"  
基本條件是 L8-[:1
  
-z~ V  
主鏡必須是拋物面 V]S06>P  
~bWWu`h  
副鏡必須是球面 id[>!fQ=Y  
@2Y]p.$q  
系統包含一組校正鏡 X#NeB>~  
B| 0s4E  
口徑200mm以上 $>rfAs!  
'N5r2JL[w  
焦比不限制 d&R\7)0  
hb8@br  
視角0.5度以上 \z2hXT@D  
s:Ql](/B#  
以下是我的結果,目前覺得副鏡的口徑太大,不知道有無改進的可能. d# ?*62  
}${ZI  
2
T2#HP  
-_f0AfU/a  
Surf     Type         Radius      Thickness                Glass      Diameter          Conic \,IDLXqp  
OBJ STANDARD       Infinity       Infinity                                  0              0 rM~IF+f0XD  
   1 STANDARD       Infinity            480                                220              0 aFc'_FrQ  
STO STANDARD          -1500           -450               MIRROR           204             -1 /a/uS3&  
   3 STANDARD      -1313.861       279.4093               MIRROR      88.07552              0 ~x^+OXf!^g  
   4 STANDARD       167.5149              6                N-BK7            56              0 GC#95  
   5 STANDARD       123.4956       4.762038                                 56              0 Ko1?jPE  
   6 STANDARD      -262.7873              4                N-BK7            56              0 :tDGNz*zG  
   7 STANDARD      -173.5643       263.0681                                 56              0 :IKp7BS  
   8 STANDARD       Infinity              0                           24.26983              0 kC#B7*[RM  
IMA STANDARD       Infinity                                          24.26983              0

經過不斷的努力,做了一些改進. ! \Kh\  
#gT^hl5/  
J}u1\Id%  
Surf     Type         Radius      Thickness                Glass      Diameter          Conic Mo=-P2)>lt  
 OBJ STANDARD       Infinity       Infinity                                  0              0 a2FIFWvW  
   1 STANDARD       Infinity            600                                170              0 fYPU'"hzG  
   2 STANDARD          -2000           -580               MIRROR           420             -1 wZb@VG}%  
 STO STANDARD      -1884.757       397.7682               MIRROR      168.9907              0 hfc!M2/w  
   4 STANDARD       559.8055              4                N-BK7           100              0 k&;L(D  
   5 STANDARD       237.0107       6.225114                                100              0 R;ug+N  
   6 STANDARD      -1486.626              6                N-BK7           100              0 ];]EK6dzG  
   7 STANDARD      -319.3041       350.9258                                100              0 / /rWc,c  
   8 STANDARD       Infinity     0.04561954                           44.12979              0 !XC7FUO  
 IMA STANDARD       Infinity                                          44.12228              0 m1;jS|  

波像差真小啊！