[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 =MJRQV67  
2T%sHp~qt  
基本條件是 V*?QZ;hCP  
t?^!OJ:L  
主鏡必須是拋物面 ~f[;(?39xZ  
3J8>r|u;1'  
副鏡必須是球面 b'FTyi  
82)=#ye_P  
系統包含一組校正鏡 ])
v61B  
4uE)*1  
口徑200mm以上 LB.B w  
m' j1  
焦比不限制 SG~HzQ\%  
#CJET  
視角0.5度以上 ~T9QpL1OJ  
S+Ia2O)BA  
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. : maBec)  
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c|'$3dB*  
37IHn6r\  
Surf     Type         Radius      Thickness                Glass      Diameter          Conic (-;(wCEE  
OBJ STANDARD       Infinity       Infinity                                  0              0
| h"$  
   1 STANDARD       Infinity            480                                220              0 it>Bf;  
STO STANDARD          -1500           -450               MIRROR           204             -1 vG)B}`M  
   3 STANDARD      -1313.861       279.4093               MIRROR      88.07552              0 Gys-Im6>~@  
   4 STANDARD       167.5149              6                N-BK7            56              0 7[L%j;)bw  
   5 STANDARD       123.4956       4.762038                                 56              0 f;+.j/ +  
   6 STANDARD      -262.7873              4                N-BK7            56              0 3ohHBo  
   7 STANDARD      -173.5643       263.0681                                 56              0 v9TIEmZ  
   8 STANDARD       Infinity              0                           24.26983              0 Dbx zqd  
IMA STANDARD       Infinity                                          24.26983              0

經過不斷的努力,做了一些改進. Y{t}sO%A  
R$it`0D4o  
q}E'x/s2m  
Surf     Type         Radius      Thickness                Glass      Diameter          Conic :4\_upRE  
 OBJ STANDARD       Infinity       Infinity                                  0              0 ^Y8G}Z|  
   1 STANDARD       Infinity            600                                170              0 B>"-8#B[4  
   2 STANDARD          -2000           -580               MIRROR           420             -1 ,[_)BM  
 STO STANDARD      -1884.757       397.7682               MIRROR      168.9907              0 F"tM?V.|  
   4 STANDARD       559.8055              4                N-BK7           100              0 p-z!i+  
   5 STANDARD       237.0107       6.225114                                100              0 e)L!4Y44K  
   6 STANDARD      -1486.626              6                N-BK7           100              0 0'zjPE#  
   7 STANDARD      -319.3041       350.9258                                100              0 mndEB!b  
   8 STANDARD       Infinity     0.04561954                           44.12979              0 JvJ)}d$,&  
 IMA STANDARD       Infinity                                          44.12228              0 Ghe@m6|D  

波像差真小啊！