[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 _9r
{W65s  
d 4R+gIA  
基本條件是 IIiN1 Lu,5  
F-0PmO~3+W  
主鏡必須是拋物面 g<%-n,  
*pp1Wa7O  
副鏡必須是球面 89mre;v`  
eCD,[At/  
系統包含一組校正鏡 U{(07GNm#  
8 GN{*Hg  
口徑200mm以上 Ya 4$7|(  
^MV%\0o  
焦比不限制 V.:A'!$#  
dC#\ut%l  
視角0.5度以上 ;(6lN<iU  
4'&BpFDUb  
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. ZRGZ'+hw  
y/eX(l<{  
a=VT|CX[  
%nF\tVP3]  
Surf     Type         Radius      Thickness                Glass      Diameter          Conic !Jl0Eu  
OBJ STANDARD       Infinity       Infinity                                  0              0 7g+]  
   1 STANDARD       Infinity            480                                220              0 C
t+%  
STO STANDARD          -1500           -450               MIRROR           204             -1 [S+-ovl  
   3 STANDARD      -1313.861       279.4093               MIRROR      88.07552              0 uiA:(2AQ  
   4 STANDARD       167.5149              6                N-BK7            56              0 ',Pk>f]AB-  
   5 STANDARD       123.4956       4.762038                                 56              0 ^I?y\:.  
   6 STANDARD      -262.7873              4                N-BK7            56              0 Q}]
kw}b  
   7 STANDARD      -173.5643       263.0681                                 56              0 !5!$h`g  
   8 STANDARD       Infinity              0                           24.26983              0 {`CWz
k?  
IMA STANDARD       Infinity                                          24.26983              0

經過不斷的努力,做了一些改進. ]N <]  
b_gN?F7_  
wW! r}I#  
Surf     Type         Radius      Thickness                Glass      Diameter          Conic &
W<>^C2v  
 OBJ STANDARD       Infinity       Infinity                                  0              0 j*~dFGl)  
   1 STANDARD       Infinity            600                                170              0 + >gbZ-S  
   2 STANDARD          -2000           -580               MIRROR           420             -1 RR"WO  
 STO STANDARD      -1884.757       397.7682               MIRROR      168.9907              0 K0RYI69_  
   4 STANDARD       559.8055              4                N-BK7           100              0 ka)LK@p6  
   5 STANDARD       237.0107       6.225114                                100              0 X>Xp&o  
   6 STANDARD      -1486.626              6                N-BK7           100              0 Y!1^@;)^  
   7 STANDARD      -319.3041       350.9258                                100              0 UtBlP+bE?y  
   8 STANDARD       Infinity     0.04561954                           44.12979              0 ' raB  
 IMA STANDARD       Infinity                                          44.12228              0 G1;'nwf}  

波像差真小啊！