[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 Cf
s2tN  
S3oyx#R('O  
基本條件是 G.")Bg  
r+:]lO  
主鏡必須是拋物面 {=I:
K|&  
I-Q@
v`  
副鏡必須是球面 }_mVXjF  
A4uKE"WE  
系統包含一組校正鏡 FP=up#zl  
%plu]^Vy  
口徑200mm以上 |VX )S!  
#B2a?   
焦比不限制 I4XnJ[N%  
/O[<"Wcz  
視角0.5度以上 Yyx
sj9  
z`}z7e'>  
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. $-=xG&fSz  
PfR|\{(  
0 i'bo*  
yopC <k  
Surf     Type         Radius      Thickness                Glass      Diameter          Conic jFDVd;#CS  
OBJ STANDARD       Infinity       Infinity                                  0              0 |`|#-xu  
   1 STANDARD       Infinity            480                                220              0 HVdy!J  
STO STANDARD          -1500           -450               MIRROR           204             -1 m>{a<N  
   3 STANDARD      -1313.861       279.4093               MIRROR      88.07552              0 `.z"Q%uz  
   4 STANDARD       167.5149              6                N-BK7            56              0 X;bHlA-g  
   5 STANDARD       123.4956       4.762038                                 56              0 `- HI)-A97  
   6 STANDARD      -262.7873              4                N-BK7            56              0 ty8>(N(~  
   7 STANDARD      -173.5643       263.0681                                 56              0 &t~NR$@  
   8 STANDARD       Infinity              0                           24.26983              0 vX@TZet0  
IMA STANDARD       Infinity                                          24.26983              0

經過不斷的努力,做了一些改進. *8Su:=*b  
[p'A?-  
a~ RY 8s  
Surf     Type         Radius      Thickness                Glass      Diameter          Conic `ZZ3!$czR  
 OBJ STANDARD       Infinity       Infinity                                  0              0 dt@~8kS  
   1 STANDARD       Infinity            600                                170              0 dU*$V7  
   2 STANDARD          -2000           -580               MIRROR           420             -1 );T&pm:C>  
 STO STANDARD      -1884.757       397.7682               MIRROR      168.9907              0 H | C3{9  
   4 STANDARD       559.8055              4                N-BK7           100              0 H,W8JNPs  
   5 STANDARD       237.0107       6.225114                                100              0 nrA 4N1  
   6 STANDARD      -1486.626              6                N-BK7           100              0 |)v}\-\#  
   7 STANDARD      -319.3041       350.9258                                100              0 M3elog:M  
   8 STANDARD       Infinity     0.04561954                           44.12979              0 Rp;"]Q&b  
 IMA STANDARD       Infinity                                          44.12228              0 kL8E#  

波像差真小啊！