[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 17rg!'+   
]{-ib:f
~  
基本條件是 -OQ6;A"#  
t-FrF</0  
主鏡必須是拋物面 %H"AHkge:a  
G!GGT?J  
副鏡必須是球面 uCFpH5>  
YZ0Q?7l7  
系統包含一組校正鏡 P; =,Q$e8  
:JxuaM8  
口徑200mm以上 A*{V%7hs&  
(Sj?BZjC  
焦比不限制 ()$tP3o  
U_0"1+j
bq  
視角0.5度以上 ~
R
M_c  
:EC[YAK+D  
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. ][Cg8  
j&?@:Zg v  
w##$SaT
I  
&W y9%  
Surf     Type         Radius      Thickness                Glass      Diameter          Conic cZ/VMQEr  
OBJ STANDARD       Infinity       Infinity                                  0              0 mVyF M -`  
   1 STANDARD       Infinity            480                                220              0 [{-;cpM\  
STO STANDARD          -1500           -450               MIRROR           204             -1 {Pi]i?  
   3 STANDARD      -1313.861       279.4093               MIRROR      88.07552              0 vP&JL~  
   4 STANDARD       167.5149              6                N-BK7            56              0 ^X?3e1om  
   5 STANDARD       123.4956       4.762038                                 56              0 JLxAk14lc  
   6 STANDARD      -262.7873              4                N-BK7            56              0  cCy*?P@  
   7 STANDARD      -173.5643       263.0681                                 56              0 rcMSso2  
   8 STANDARD       Infinity              0                           24.26983              0 o7@81QA!e  
IMA STANDARD       Infinity                                          24.26983              0

經過不斷的努力,做了一些改進. ;4ETqi9  
bs=x
>F  
8%D 2G i  
Surf     Type         Radius      Thickness                Glass      Diameter          Conic hMvLx>q3)  
 OBJ STANDARD       Infinity       Infinity                                  0              0 \_J;i[
  
   1 STANDARD       Infinity            600                                170              0 m3i+b  
   2 STANDARD          -2000           -580               MIRROR           420             -1 ij+)U`  
 STO STANDARD      -1884.757       397.7682               MIRROR      168.9907              0 G :JQ_w  
   4 STANDARD       559.8055              4                N-BK7           100              0 Y<0R5rO  
   5 STANDARD       237.0107       6.225114                                100              0 ' (1`iQ;  
   6 STANDARD      -1486.626              6                N-BK7           100              0 Doj>Irj?7  
   7 STANDARD      -319.3041       350.9258                                100              0 (TJ )Y7E  
   8 STANDARD       Infinity     0.04561954                           44.12979              0 ~y.t amNW  
 IMA STANDARD       Infinity                                          44.12228              0 ^TF71uo  

波像差真小啊！