[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 -i| /JH  
Fm
y1nZ  
基本條件是 qb#V)  
F Bd+=bx,Z  
主鏡必須是拋物面 cL-6M^!a  
s0x@ u  
副鏡必須是球面 OJh+[bf"  
7{?lEQ&UE  
系統包含一組校正鏡 Y}eZPG.h  
>b[4  
口徑200mm以上 \ x>NB  
eh8<?(eK  
焦比不限制 |DdW<IT
`0  
Lh8#I&x  
視角0.5度以上 e7)>U!9c9  
Y- z~#;  
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. U"jUMOMZ;  
853]CK<  
s>[vT?  
/3xFd)|Ds  
Surf     Type         Radius      Thickness                Glass      Diameter          Conic ?h>(&HjWV  
OBJ STANDARD       Infinity       Infinity                                  0              0 V}3~7(  
   1 STANDARD       Infinity            480                                220              0 zIX}[l4EW~  
STO STANDARD          -1500           -450               MIRROR           204             -1 ?j},O=JFn  
   3 STANDARD      -1313.861       279.4093               MIRROR      88.07552              0 Y9lbf_51  
   4 STANDARD       167.5149              6                N-BK7            56              0 N^@%qU
vT]  
   5 STANDARD       123.4956       4.762038                                 56              0 *X"F:7  
   6 STANDARD      -262.7873              4                N-BK7            56              0 IJL^dXCu  
   7 STANDARD      -173.5643       263.0681                                 56              0 4AG&z,[  
   8 STANDARD       Infinity              0                           24.26983              0 3RY|l?n>  
IMA STANDARD       Infinity                                          24.26983              0

經過不斷的努力,做了一些改進. TBLk+AR  
u9[w~U#  
^9m^#"ZW`  
Surf     Type         Radius      Thickness                Glass      Diameter          Conic OYCFx2{  
 OBJ STANDARD       Infinity       Infinity                                  0              0 vU=k8  
   1 STANDARD       Infinity            600                                170              0 
f+(w(~O  
   2 STANDARD          -2000           -580               MIRROR           420             -1 U#^:f7-$.  
 STO STANDARD      -1884.757       397.7682               MIRROR      168.9907              0 aWi]
t'_  
   4 STANDARD       559.8055              4                N-BK7           100              0 %PNm7s4x2  
   5 STANDARD       237.0107       6.225114                                100              0 Z6HkQ=A64  
   6 STANDARD      -1486.626              6                N-BK7           100              0 N"Nd$4  
   7 STANDARD      -319.3041       350.9258                                100              0 -O
,O<tOm  
   8 STANDARD       Infinity     0.04561954                           44.12979              0 $y |6<  
 IMA STANDARD       Infinity                                          44.12228              0 0yEyt7 ~@  

波像差真小啊！