[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 o8X_uKEI  
].s;Yxz  
基本條件是 /0}Z>iK  
\ ku5%y  
主鏡必須是拋物面 r#OPW7mhE  
V8/4:Va7s  
副鏡必須是球面 M{ncWq*_j  
=803rNe  
系統包含一組校正鏡 x*H#?.E  
m[eqTh4*  
口徑200mm以上 9s<4`oa  
~vz%I^xW  
焦比不限制 oMN<jAU.  
PIU@}:}  
視角0.5度以上 Po58@g  
MsXw 8D  
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. ( unmf,y  
`,'/Sdr  
P<IDb%W  
c:m=9>3  
Surf     Type         Radius      Thickness                Glass      Diameter          Conic SE\?8cs]-  
OBJ STANDARD       Infinity       Infinity                                  0              0 o MJ`_  
   1 STANDARD       Infinity            480                                220              0 l Xa/5QKC  
STO STANDARD          -1500           -450               MIRROR           204             -1 +%YBa'Lk  
   3 STANDARD      -1313.861       279.4093               MIRROR      88.07552              0 n5=U.r  
   4 STANDARD       167.5149              6                N-BK7            56              0 9^F3r]bH  
   5 STANDARD       123.4956       4.762038                                 56              0 &jqylX  
   6 STANDARD      -262.7873              4                N-BK7            56              0 O[VY|.MEk  
   7 STANDARD      -173.5643       263.0681                                 56              0 _Z(t**Zh6y  
   8 STANDARD       Infinity              0                           24.26983              0 Dizz?O  
IMA STANDARD       Infinity                                          24.26983              0

波像差真小啊！

經過不斷的努力,做了一些改進. Qx4)'
n  
:dt[ #  
b11I$b #  
Surf     Type         Radius      Thickness                Glass      Diameter          Conic s-IE}I?;  
 OBJ STANDARD       Infinity       Infinity                                  0              0 ~Y/A]N86,  
   1 STANDARD       Infinity            600                                170              0 OV]xo8a;  
   2 STANDARD          -2000           -580               MIRROR           420             -1 fi HE`]0
 
 STO STANDARD      -1884.757       397.7682               MIRROR      168.9907              0 ,4H? +|!  
   4 STANDARD       559.8055              4                N-BK7           100              0 ? uYO]!VC  
   5 STANDARD       237.0107       6.225114                                100              0 4

"2%mx:  
   6 STANDARD      -1486.626              6                N-BK7           100              0 sYS 8]JU  
   7 STANDARD      -319.3041       350.9258                                100              0 \( s `=(t  
   8 STANDARD       Infinity     0.04561954                           44.12979              0 @l CG)Ix<  
 IMA STANDARD       Infinity                                          44.12228              0 4fKvB@O@.