[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 i;^lh]u  
lg-_[!4Z  
基本條件是 yk?bz  
HC$%"peN1b  
主鏡必須是拋物面 aJ(/r.1G  
C;m"
W5+  
副鏡必須是球面 r 1r@TG\  
ny13+Q`^  
系統包含一組校正鏡 E42)93~C  
i0{\c}r:4b  
口徑200mm以上 rk1,LsZVS  
b=lJ`|  
焦比不限制 xS1n,gTA  
&B(z**+9  
視角0.5度以上 JGHj(0j  
x>EL|Q=?  
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. -8qCCV&1i  
>1!u]R<3  
b VEJ  
9{;L7`<  
Surf     Type         Radius      Thickness                Glass      Diameter          Conic #b;?:.m\=  
OBJ STANDARD       Infinity       Infinity                                  0              0 y`n?f|nf  
   1 STANDARD       Infinity            480                                220              0 %J-0%-/_S:  
STO STANDARD          -1500           -450               MIRROR           204             -1 sr;&/l#7h  
   3 STANDARD      -1313.861       279.4093               MIRROR      88.07552              0 s>6h]H  
   4 STANDARD       167.5149              6                N-BK7            56              0 Vhv'Z\  
   5 STANDARD       123.4956       4.762038                                 56              0 }2;P`s  
   6 STANDARD      -262.7873              4                N-BK7            56              0 0R)x"4Ww  
   7 STANDARD      -173.5643       263.0681                                 56              0 G7&TMg7i  
   8 STANDARD       Infinity              0                           24.26983              0 7!AyLw  
IMA STANDARD       Infinity                                          24.26983              0

經過不斷的努力,做了一些改進. !+3&%vQ)  
`C: 7N=9  
fd *XK/h  
Surf     Type         Radius      Thickness                Glass      Diameter          Conic t>"`rcg  
 OBJ STANDARD       Infinity       Infinity                                  0              0 OD~Q|I(j  
   1 STANDARD       Infinity            600                                170              0 3=n6NTL  
   2 STANDARD          -2000           -580               MIRROR           420             -1 0+iRgnd9?  
 STO STANDARD      -1884.757       397.7682               MIRROR      168.9907              0 "mBM<rEn*  
   4 STANDARD       559.8055              4                N-BK7           100              0 d;dT4vx$[M  
   5 STANDARD       237.0107       6.225114                                100              0 wY ItG"+6  
   6 STANDARD      -1486.626              6                N-BK7           100              0 q<3La(^/  
   7 STANDARD      -319.3041       350.9258                                100              0 [
w<_Wj  
   8 STANDARD       Infinity     0.04561954                           44.12979              0 S~:uOm2t\  
 IMA STANDARD       Infinity                                          44.12228              0 g "Du]_,  

波像差真小啊！