[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 !1 8clL  
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基本條件是 Xe:jAkDp  
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主鏡必須是拋物面 A5R<p+t6  
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副鏡必須是球面 Zxs|%bQ  
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系統包含一組校正鏡 jun_QiU:2  
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口徑200mm以上 "ZsOd>[/  
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焦比不限制 ,J^b0@S  
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視角0.5度以上 .e=:RkI,  
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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. 6NM:DI\%  
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Surf     Type         Radius      Thickness                Glass      Diameter          Conic Y^7
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OBJ STANDARD       Infinity       Infinity                                  0              0 !1DKLQ  
   1 STANDARD       Infinity            480                                220              0 b#toM';T  
STO STANDARD          -1500           -450               MIRROR           204             -1 jW3!6*93  
   3 STANDARD      -1313.861       279.4093               MIRROR      88.07552              0 9c#+qH  
   4 STANDARD       167.5149              6                N-BK7            56              0 S^>,~R.TX  
   5 STANDARD       123.4956       4.762038                                 56              0 MmnOHN@.  
   6 STANDARD      -262.7873              4                N-BK7            56              0 wq(7|!Eix  
   7 STANDARD      -173.5643       263.0681                                 56              0 LO khjHR  
   8 STANDARD       Infinity              0                           24.26983              0 4@n1Uk  
IMA STANDARD       Infinity                                          24.26983              0

波像差真小啊！

經過不斷的努力,做了一些改進. T G{k0cdOT  
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Surf     Type         Radius      Thickness                Glass      Diameter          Conic _ozg_E  
 OBJ STANDARD       Infinity       Infinity                                  0              0 YoLx>8  
   1 STANDARD       Infinity            600                                170              0 (85Fv&a  
   2 STANDARD          -2000           -580               MIRROR           420             -1 <Ib[82PU  
 STO STANDARD      -1884.757       397.7682               MIRROR      168.9907              0 [],1lRYI9_  
   4 STANDARD       559.8055              4                N-BK7           100              0 C,NxE5?h  
   5 STANDARD       237.0107       6.225114                                100              0 w'fT=v
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   6 STANDARD      -1486.626              6                N-BK7           100              0 S.Ma$KL~'^  
   7 STANDARD      -319.3041       350.9258                                100              0 EV^~eTz  
   8 STANDARD       Infinity     0.04561954                           44.12979              0 \nB8WSvk2W  
 IMA STANDARD       Infinity                                          44.12228              0 FwY&/\J7V