[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 l
ph_cY3p  
M!@[lJ  
基本條件是 {'C74s  
|9M y>8k(  
主鏡必須是拋物面 H-lRgJdc  
.<hv&t  
副鏡必須是球面 xSZw,  
X/"H+l  
系統包含一組校正鏡 Id1[}B-T  
VlvDodV  
口徑200mm以上 '-{jn+,
 
2Z|kf9  
焦比不限制 aS2 Y6  
=wc[r?7  
視角0.5度以上 $R4\jIewV  
S_=uv)%a  
以下是我的結果,目前覺得副鏡的口徑太大,不知道有無改進的可能. x$sQ .aT  
I`1=VC]^8  
](pD<FfS]'  
~o$=(EC  
Surf     Type         Radius      Thickness                Glass      Diameter          Conic cd#TKmh7re  
OBJ STANDARD       Infinity       Infinity                                  0              0 E"!
*ASN  
   1 STANDARD       Infinity            480                                220              0 Stpho4+/y  
STO STANDARD          -1500           -450               MIRROR           204             -1 |R;=P(0it  
   3 STANDARD      -1313.861       279.4093               MIRROR      88.07552              0 h#9)M  
   4 STANDARD       167.5149              6                N-BK7            56              0 H*IoJL6
 
   5 STANDARD       123.4956       4.762038                                 56              0 Zx0c6d!B  
   6 STANDARD      -262.7873              4                N-BK7            56              0 A 78{b^0
*  
   7 STANDARD      -173.5643       263.0681                                 56              0 2{\Y<%.  
   8 STANDARD       Infinity              0                           24.26983              0 %yVZ|d*Q  
IMA STANDARD       Infinity                                          24.26983              0

經過不斷的努力,做了一些改進. c-,/qn/  
T-MLW=Vu  
J_,y?}.e3  
Surf     Type         Radius      Thickness                Glass      Diameter          Conic >9DgsA`'  
 OBJ STANDARD       Infinity       Infinity                                  0              0 CH2o[&  
   1 STANDARD       Infinity            600                                170              0 {`:!=  
   2 STANDARD          -2000           -580               MIRROR           420             -1 1/z1~:Il  
 STO STANDARD      -1884.757       397.7682               MIRROR      168.9907              0 X qh+  
   4 STANDARD       559.8055              4                N-BK7           100              0 2Y,s58F  
   5 STANDARD       237.0107       6.225114                                100              0 qxq ~9\My  
   6 STANDARD      -1486.626              6                N-BK7           100              0 h*Ej}_  
   7 STANDARD      -319.3041       350.9258                                100              0 7]Z*]GRX  
   8 STANDARD       Infinity     0.04561954                           44.12979              0 q+z,{K  
 IMA STANDARD       Infinity                                          44.12228              0 22GtTENd1h  

波像差真小啊！