主要是看人家的操作步骤,想学命令的人请看，十分有用 p4-b D_
File > Open (locate saved Workshop 1 lens if it is not open already, digcam20_start.len) ]Y@ia]x&P
Display > View Lens (accept defaults, click OK, keep window open) #`9D,+2iB%
In LDM spreadsheet, select surfaces 1 to Image #aV2+ `d
Choose Edit > Default Variables, then click in any cell to unselect the range a;$'A[hq
Right click in each cell and choose Vary for @hE$x-TP0
Thickness of surfaces 1, 4, 6 y $K#M
Glass of surfaces 1, 4, 6 b#<@&0KE
File > Save Lens < BNCo5*
Using Quick Analysis tool bar, click… | p1 pa4%}
Quick Spot Diagram (note scale) KoPhPH
Quick Ray Aberration Plot (note scale) M)oJ06`K
Quick Field Plot (note scales and maximum distortion value) !@<>S>uGG
Analysis > Diffraction > MTF EL[N%M3
Freq/Calc Tab: Maximum 68, Increment 17 l *Iy:j(B
Graphics tab: Max plot freq 68 w/(hEF '
Click OK (keep window open, tear off starting MTF graph for later comparison) D9|?1+Kc
Optimization > Automatic Design + ^9;<>P
Output controls: Click Draw System button }m6j6uAR6)
General constraints: Min center thickness 0.8, Min edge thickness 0.5 (others default) "/-T{p;.
Specific constraints: v9[[T6t/'
Click Insert Specific Constraint bl)iji`]
Default display is Optical Definitions, Effective Focal Length (correct choice) K{)YnY_E;
Enter 8.25 for Constraint Target -gP4| r8&
Click OK. D|1pBn.b]'
File > Save Lens As (new name, digcam20_opt.len) #' =rv
Re-run View Lens window to see new lens picture. Fq<;-
Re-run each of the Quick Analysis windows and note scales. >
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Re-run the MTF window, compare to tear-off of starting point 'h6Vj6
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以下直接复制到命令行即可出最终结果 }m~2[5q%/
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! Command inputs for Workshop 2-2 (for reference) :%?\Wj5HW
!Restore 20 Degree Digital Camera Lens Setup ;S FmbZ%~
!FILE > OPEN D* oJz3[
RES digcam20_start.len 9x~qcH%
!Vary all radii curvature by right clicking in LDM and selecting VARY W~1MeAI
!HINT: for curvatures highlight all and select vary. Then go back and
W*xz 0
!freeze stop surface radius. /Nh:O
CCY S1 0 ; CCY S2 0 ; CCY S4 0 ; CCY S5 0 ; CCY S6 0 ; CCY S7 0 kXq*Jq
!Vary all thicknesses by same method. Do not select surface with solve since ms%Ot:uA
!varying this surface will delete solve. If mistake, use UNDO or go to 2_ x~y|<9
!LENS > SYSTEM DATA > SYSTEM SOLVES and reselect Paraxial Image Solve hk O)q|1
THC S1 0 ; THC S2 0 ; THC S3 0 ; THC S4 0 ; THC S5 0 ; THC S6 0 U-$ B"w &
THC S8 0 !Don't forget to vary the image distance which calculates best % DQ.f*%
!best real-ray focus from paraxial image plane GMZj@q
!Vary glass by highlighting, right clicking, and selecting Vary h%Nbx:vKk
GC1 S1 0 ; GC1 S4 0 ; GC1 S6 0 K_J o^BZ
!Optimize OPTIMIZATION > AUTOMATIC DESIGN S|8O$9{x9q
AUT ^%v<I"<Uq5
EFL Z1 = 8.25 !Effective Focal Length Constraint GA {Q6]B
MNT 0.8 !Minimum Center Thickness General Constraint |xTf:@hgHf
MNE 0.5 !Minimum Edge Thickness General Constraint 7]q $ sQ
DRA S1..I YES !Draw a picture of lens system at each cycle %EuXL% B
GO p1=sDsLL
!Reanalyze the system. Make sure to "Tear Off" original analysis before ql%>)k /x
!re-executing to compare optimized system eTc0u;{V
!Re-execute Drawing r"a4 ;&mf
VIE 2
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GO Xf.w( -
!Re-execute MTF (YjY=F
MTF z/7H/~d
MFR 68 iaR^] |7_
IFR 17 _ "ysJ&
GO k!]Tg"]JAh
!Re-execute Field (Distortion) Analysis urHQb5| T}
FIE m6bI<C3^5
GO W39R)sra
!Save Lens FILE > SAVE LENS AS... #]ii/Et#x
SAV digcam20_opt
