[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 r029E-  
()n2 KT  
基本條件是 41Ab,  
6!;D],,"#.  
主鏡必須是拋物面 b?,=|H  
R+=wSG]  
副鏡必須是球面 `}FZ;q3DP  
[81q 0@  
系統包含一組校正鏡 nV8iYBBym  
!HP=Rgh  
口徑200mm以上 I%B\Wy/j^  
x`2du/ C  
焦比不限制 I\Cg-&e  
^f,%dM=i=  
視角0.5度以上 l|;]"&|_]c  
1qm*#4x  
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. r$x;
rL4  
T#[#w*w/  
dx$+,R~y  
!!cN4X  
Surf     Type         Radius      Thickness                Glass      Diameter          Conic ,"YTG*ky  
OBJ STANDARD       Infinity       Infinity                                  0              0 [N<rPHT  
   1 STANDARD       Infinity            480                                220              0 H6/gRv@  
STO STANDARD          -1500           -450               MIRROR           204             -1 =j{Kxnv  
   3 STANDARD      -1313.861       279.4093               MIRROR      88.07552              0 >t%@)]*N  
   4 STANDARD       167.5149              6                N-BK7            56              0 YgjN*8w\  
   5 STANDARD       123.4956       4.762038                                 56              0 )HX(-"c  
   6 STANDARD      -262.7873              4                N-BK7            56              0 l 3 jlKB  
   7 STANDARD      -173.5643       263.0681                                 56              0 Y_~otoSoY  
   8 STANDARD       Infinity              0                           24.26983              0 8PWEQ<ev7>  
IMA STANDARD       Infinity                                          24.26983              0

經過不斷的努力,做了一些改進. %.onO0})  
''3I0X*!  
g!9|1z  
Surf     Type         Radius      Thickness                Glass      Diameter          Conic \N$)Q.M  
 OBJ STANDARD       Infinity       Infinity                                  0              0 qB&Je$_uh  
   1 STANDARD       Infinity            600                                170              0 e+MQmWA'F  
   2 STANDARD          -2000           -580               MIRROR           420             -1 LWhPd\  
 STO STANDARD      -1884.757       397.7682               MIRROR      168.9907              0 i4nFjz  
   4 STANDARD       559.8055              4                N-BK7           100              0 NCl@C$W
9q  
   5 STANDARD       237.0107       6.225114                                100              0 (t@:dW  
   6 STANDARD      -1486.626              6                N-BK7           100              0 d[XMQX  
   7 STANDARD      -319.3041       350.9258                                100              0 c] t@3m  
   8 STANDARD       Infinity     0.04561954                           44.12979              0 W+$G{XSr5C  
 IMA STANDARD       Infinity                                          44.12228              0 ,]]*
}4[r  

波像差真小啊！