[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 XI5q>cd\Sz  
K[9{]$(Z  
基本條件是 tZA%^Y  
b+THn'2  
主鏡必須是拋物面 `^ uX`M/  
2%@<A  
副鏡必須是球面 TL([hR _  
#mc6;TRZO  
系統包含一組校正鏡 X1GM\*BE  
uG4Q\,R  
口徑200mm以上 ./}W3  
RGLi#:0_.x  
焦比不限制 5}`e"X  
tN&X1  
視角0.5度以上 DZV U!J  
G4)X~.Fy  
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. .q9i10C  
 
X&.LX  
CR`}{?2H
 
,%,.c^-  
Surf     Type         Radius      Thickness                Glass      Diameter          Conic Xldz&&@  
OBJ STANDARD       Infinity       Infinity                                  0              0 4UnN~  
   1 STANDARD       Infinity            480                                220              0 @'FOM  
STO STANDARD          -1500           -450               MIRROR           204             -1 IJofbuzw:  
   3 STANDARD      -1313.861       279.4093               MIRROR      88.07552              0 q%k _C0  
   4 STANDARD       167.5149              6                N-BK7            56              0 XN~r d,MZ%  
   5 STANDARD       123.4956       4.762038                                 56              0 O:W4W=K  
   6 STANDARD      -262.7873              4                N-BK7            56              0 Vc|uQ8Mi  
   7 STANDARD      -173.5643       263.0681                                 56              0 gR8vF  
   8 STANDARD       Infinity              0                           24.26983              0 fnudu0k  
IMA STANDARD       Infinity                                          24.26983              0

經過不斷的努力,做了一些改進. 61{IXx_  
*;yn_z
g  
f!aE/e\  
Surf     Type         Radius      Thickness                Glass      Diameter          Conic %e'Z.vm  
 OBJ STANDARD       Infinity       Infinity                                  0              0 K5SP8<.  
   1 STANDARD       Infinity            600                                170              0 *oU-V#  
   2 STANDARD          -2000           -580               MIRROR           420             -1 `Aa*}1  
 STO STANDARD      -1884.757       397.7682               MIRROR      168.9907              0 j: /cJt  
   4 STANDARD       559.8055              4                N-BK7           100              0 eGh7,wngH  
   5 STANDARD       237.0107       6.225114                                100              0 1I -LGe[Q  
   6 STANDARD      -1486.626              6                N-BK7           100              0 \w+a Q?e_  
   7 STANDARD      -319.3041       350.9258                                100              0 JOm6Zc  
   8 STANDARD       Infinity     0.04561954                           44.12979              0 BbdJR]N/!h  
 IMA STANDARD       Infinity                                          44.12228              0 {f<\`  

波像差真小啊！