[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 G9ra;.  
/E5>cqX4A  
基本條件是 >+ku:<Hw%.  
6tBe,'*  
主鏡必須是拋物面 ~|8-Mo1ce  
`z6I][Uf  
副鏡必須是球面 39Tlt~Psz  
OP\m~1  
系統包含一組校正鏡 qbD[<T  
D'\gy$9m1  
口徑200mm以上 m}sh(W5\  
pn aSOyR  
焦比不限制 Gxh1wqLR  
;0:[X+"(  
視角0.5度以上 X32{y973hT  
"|d# +C  
以下是我的結果,目前覺得副鏡的口徑太大,不知道有無改進的可能. ]R]%c*tA  
@*5(KIeeC>  
%bgUU|CdA  
~>>^7oq  
Surf     Type         Radius      Thickness                Glass      Diameter          Conic 3V0^v  
OBJ STANDARD       Infinity       Infinity                                  0              0 yey]#M[y  
   1 STANDARD       Infinity            480                                220              0  t'e5!Ma  
STO STANDARD          -1500           -450               MIRROR           204             -1 eDS,}Z'  
   3 STANDARD      -1313.861       279.4093               MIRROR      88.07552              0 (cm8x  
   4 STANDARD       167.5149              6                N-BK7            56              0 6[&x7"  
   5 STANDARD       123.4956       4.762038                                 56              0 4)E$. F^   
   6 STANDARD      -262.7873              4                N-BK7            56              0 9 kLA57  
   7 STANDARD      -173.5643       263.0681                                 56              0 ?4YLt|sn  
   8 STANDARD       Infinity              0                           24.26983              0 =r>u'wRQ  
IMA STANDARD       Infinity                                          24.26983              0

經過不斷的努力,做了一些改進. +P%k@w#<Z  
BRXD
E7vw  
)Bu#ln"  
Surf     Type         Radius      Thickness                Glass      Diameter          Conic cc0Tb  
 OBJ STANDARD       Infinity       Infinity                                  0              0 F(|XJN  
   1 STANDARD       Infinity            600                                170              0 DcN!u6sJ  
   2 STANDARD          -2000           -580               MIRROR           420             -1 'zOB!QqA`v  
 STO STANDARD      -1884.757       397.7682               MIRROR      168.9907              0 _RE;}1rb,  
   4 STANDARD       559.8055              4                N-BK7           100              0 zJov*^T-C  
   5 STANDARD       237.0107       6.225114                                100              0 (@V_47o  
   6 STANDARD      -1486.626              6                N-BK7           100              0 -`UOqjb]3  
   7 STANDARD      -319.3041       350.9258                                100              0 lN*beOj  
   8 STANDARD       Infinity     0.04561954                           44.12979              0 (#8B  
 IMA STANDARD       Infinity                                          44.12228              0 lcK4 Uq\q  

波像差真小啊！