[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 H&4~Uo.5  
WE6\dhJ<  
基本條件是 7:Ztuc]  
3[IJhR[  
主鏡必須是拋物面 bwiD$  
1;lmu]I>)  
副鏡必須是球面 #X`8dnQZ  
$t/rOo9cV  
系統包含一組校正鏡 |<qs  
?+2b(2&MXE  
口徑200mm以上 Ne6}oQy(S`  
!EBY@ Y1  
焦比不限制 +K~NV?c  
{1-V]h.<J  
視角0.5度以上 }-DE`c  
4n0xE[-  
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. }< 5F  
K#mOSY;}  
,Zf 9RM  
=!b6FjsiG  
Surf     Type         Radius      Thickness                Glass      Diameter          Conic G64Fx*`  
OBJ STANDARD       Infinity       Infinity                                  0              0 c EnkU]  
   1 STANDARD       Infinity            480                                220              0 9X}I>  
STO STANDARD          -1500           -450               MIRROR           204             -1 >mq,}!n  
   3 STANDARD      -1313.861       279.4093               MIRROR      88.07552              0 r[txlQI9  
   4 STANDARD       167.5149              6                N-BK7            56              0 F<&!b2)ML  
   5 STANDARD       123.4956       4.762038                                 56              0 $_;e>*+x  
   6 STANDARD      -262.7873              4                N-BK7            56              0 ,h]o>  
   7 STANDARD      -173.5643       263.0681                                 56              0 e Y$qV}  
   8 STANDARD       Infinity              0                           24.26983              0 oG oK,  
IMA STANDARD       Infinity                                          24.26983              0

經過不斷的努力,做了一些改進. f5*k7fg  
$``1PJoi  
{PP9$>4`l  
Surf     Type         Radius      Thickness                Glass      Diameter          Conic C@ZK~Y_g  
 OBJ STANDARD       Infinity       Infinity                                  0              0 "Mw[P [w*  
   1 STANDARD       Infinity            600                                170              0 Z%zj";C G  
   2 STANDARD          -2000           -580               MIRROR           420             -1 ia&AW  
 STO STANDARD      -1884.757       397.7682               MIRROR      168.9907              0 5@IB39
 
   4 STANDARD       559.8055              4                N-BK7           100              0 H(c72]@Vg  
   5 STANDARD       237.0107       6.225114                                100              0 1/1Xk,E  
   6 STANDARD      -1486.626              6                N-BK7           100              0 8 ;d$54 b  
   7 STANDARD      -319.3041       350.9258                                100              0 <#=N m0S$  
   8 STANDARD       Infinity     0.04561954                           44.12979              0 u-Ddq~;|  
 IMA STANDARD       Infinity                                          44.12228              0 ( 9!k#  

波像差真小啊！