[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 M^MdRu  
e`@ # *}A  
基本條件是 -mC0+}h  
h"Xg;(K  
主鏡必須是拋物面 7q?9Tj3  
nnCGg+l  
副鏡必須是球面 QBtnx[  
`D>S;[~S7  
系統包含一組校正鏡 ZZWD8AX  
0T@Zb={  
口徑200mm以上 ]P#XVDn+;  
H]Cy=Zi"  
焦比不限制 U3 */v4/  
BsBK@+ZyI  
視角0.5度以上 ML:Q5 ^`  
4
S,`bnmB  
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. 0F@"b{&0  
]Nj
X?XdX<  
wkP#Z"A0~  
6Ca(U'  
Surf     Type         Radius      Thickness                Glass      Diameter          Conic t/ +=|*  
OBJ STANDARD       Infinity       Infinity                                  0              0 HKF H/eV  
   1 STANDARD       Infinity            480                                220              0 F4
It/  
STO STANDARD          -1500           -450               MIRROR           204             -1 anI
AM  
   3 STANDARD      -1313.861       279.4093               MIRROR      88.07552              0 Ks=>K(V6  
   4 STANDARD       167.5149              6                N-BK7            56              0 2}YOcnB  
   5 STANDARD       123.4956       4.762038                                 56              0 SPN5dE.@  
   6 STANDARD      -262.7873              4                N-BK7            56              0 ipQLK{]t  
   7 STANDARD      -173.5643       263.0681                                 56              0 -9"['-WH,  
   8 STANDARD       Infinity              0                           24.26983              0 A{UULVp  
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. Vm(1G8 a  
JL\w_v  

M&NB/  
Surf     Type         Radius      Thickness                Glass      Diameter          Conic w4W_iaU  
 OBJ STANDARD       Infinity       Infinity                                  0              0 (S xR`QP?,  
   1 STANDARD       Infinity            600                                170              0 I4i2+ *l}  
   2 STANDARD          -2000           -580               MIRROR           420             -1 Gp4A.\7  
 STO STANDARD      -1884.757       397.7682               MIRROR      168.9907              0 58%#DX34M  
   4 STANDARD       559.8055              4                N-BK7           100              0 u}!@ ,/)  
   5 STANDARD       237.0107       6.225114                                100              0 si&S%4(  
   6 STANDARD      -1486.626              6                N-BK7           100              0 Zm=(+ f  
   7 STANDARD      -319.3041       350.9258                                100              0 COTp  
   8 STANDARD       Infinity     0.04561954                           44.12979              0 356>QW'm  
 IMA STANDARD       Infinity                                          44.12228              0 {]E+~%Va