[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 n1h+`nsf  
9,+LNZ'k  
基本條件是 k2;yl_7  
gO36tc:ce  
主鏡必須是拋物面 VF.S)='>Eu  
0nAS4Az  
副鏡必須是球面 m`aUz}Y>c  
E)bP}:4V  
系統包含一組校正鏡 Ye\%o[X  
Uz_{jAhW]  
口徑200mm以上 je\UfEo%  

`(<>`  
焦比不限制 9AaixI  
V,}cDT>  
視角0.5度以上 j^M@0o  
M:N>
{_1&  
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. .w&Z=
YM  
^+&}:9Ml  
$ a7
^3  
O^GTPYW  
Surf     Type         Radius      Thickness                Glass      Diameter          Conic x($1pAE   
OBJ STANDARD       Infinity       Infinity                                  0              0 xi0&"?7la  
   1 STANDARD       Infinity            480                                220              0 ezeGw?/  
STO STANDARD          -1500           -450               MIRROR           204             -1 fpUX @b  
   3 STANDARD      -1313.861       279.4093               MIRROR      88.07552              0 ~mU#u\r(*  
   4 STANDARD       167.5149              6                N-BK7            56              0 1Low[i  
   5 STANDARD       123.4956       4.762038                                 56              0 APya&TG  
   6 STANDARD      -262.7873              4                N-BK7            56              0 HU'}c*d]
 
   7 STANDARD      -173.5643       263.0681                                 56              0 ;2^=#7I?  
   8 STANDARD       Infinity              0                           24.26983              0 ;|c,  
IMA STANDARD       Infinity                                          24.26983              0

經過不斷的努力,做了一些改進. `w&|~xT  
{BgGG@e  
G|.>p<q  
Surf     Type         Radius      Thickness                Glass      Diameter          Conic 2mI=V.X[&  
 OBJ STANDARD       Infinity       Infinity                                  0              0 )t=Cj?5  
   1 STANDARD       Infinity            600                                170              0 /mvuSNk  
   2 STANDARD          -2000           -580               MIRROR           420             -1 \4mw>8wA  
 STO STANDARD      -1884.757       397.7682               MIRROR      168.9907              0 ppS,9e-  
   4 STANDARD       559.8055              4                N-BK7           100              0 >Efv?8$E\  
   5 STANDARD       237.0107       6.225114                                100              0 n pBpYtG  
   6 STANDARD      -1486.626              6                N-BK7           100              0 +oeO0  
   7 STANDARD      -319.3041       350.9258                                100              0 1S<V,9(  
   8 STANDARD       Infinity     0.04561954                           44.12979              0 u3Ua>A-  
 IMA STANDARD       Infinity                                          44.12228              0
kE=}
.  

波像差真小啊！