主要是看人家的操作步骤,想学命令的人请看，十分有用 7
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File > Open (locate saved Workshop 1 lens if it is not open already, digcam20_start.len) DwZt.*
Display > View Lens (accept defaults, click OK, keep window open) *[7,@S/<F
In LDM spreadsheet, select surfaces 1 to Image m=S[Y^tR
Choose Edit > Default Variables, then click in any cell to unselect the range < P5;8
Right click in each cell and choose Vary for 0{Kl5>Z9M
Thickness of surfaces 1, 4, 6 dTaR 8i
Glass of surfaces 1, 4, 6 LZ G^\c$
File > Save Lens IR%a+;Xs
Using Quick Analysis tool bar, click… rA 9x T`
Quick Spot Diagram (note scale) E m@h 5V
Quick Ray Aberration Plot (note scale) h ;5
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Quick Field Plot (note scales and maximum distortion value) EBM\p+x&
Analysis > Diffraction > MTF FV$= l
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Freq/Calc Tab: Maximum 68, Increment 17 Wyt C c>oL
Graphics tab: Max plot freq 68 x[}e1sXXs
Click OK (keep window open, tear off starting MTF graph for later comparison) >UJ&noUD#:
Optimization > Automatic Design c)SSi@<
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Output controls: Click Draw System button @WEem(@
General constraints: Min center thickness 0.8, Min edge thickness 0.5 (others default) FzpWT-jnDd
Specific constraints: [`fq4Ky
Click Insert Specific Constraint i&>,aiH @
Default display is Optical Definitions, Effective Focal Length (correct choice) #fGb M!3p
Enter 8.25 for Constraint Target ^l^_ K)tw*
Click OK. %1VMwqC]E
File > Save Lens As (new name, digcam20_opt.len) !nj%n
Re-run View Lens window to see new lens picture. L238 l
Re-run each of the Quick Analysis windows and note scales. (4 {49b
Re-run the MTF window, compare to tear-off of starting point 9v
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以下直接复制到命令行即可出最终结果 Ti3BlWQH
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! Command inputs for Workshop 2-2 (for reference) Q '+N72=
!Restore 20 Degree Digital Camera Lens Setup p!ae L}g`
!FILE > OPEN X=\ #n-*
RES digcam20_start.len }h_Op7.5D
!Vary all radii curvature by right clicking in LDM and selecting VARY d<7J)zUm3
!HINT: for curvatures highlight all and select vary. Then go back and P>@ `hZ9
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!freeze stop surface radius. Xe+&/J5b
CCY S1 0 ; CCY S2 0 ; CCY S4 0 ; CCY S5 0 ; CCY S6 0 ; CCY S7 0 +X*`}-3
!Vary all thicknesses by same method. Do not select surface with solve since 1~ S Y
!varying this surface will delete solve. If mistake, use UNDO or go to Xq>e]#gR
!LENS > SYSTEM DATA > SYSTEM SOLVES and reselect Paraxial Image Solve ~#a 1]w
THC S1 0 ; THC S2 0 ; THC S3 0 ; THC S4 0 ; THC S5 0 ; THC S6 0 d B lOU.B
THC S8 0 !Don't forget to vary the image distance which calculates best ]Hd 0
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!best real-ray focus from paraxial image plane dWqFP
!Vary glass by highlighting, right clicking, and selecting Vary M?cKt.t
GC1 S1 0 ; GC1 S4 0 ; GC1 S6 0 Y6L+3*Qt
!Optimize OPTIMIZATION > AUTOMATIC DESIGN uAj GR
AUT BRD'5 1]|
EFL Z1 = 8.25 !Effective Focal Length Constraint [ V)sCAW
MNT 0.8 !Minimum Center Thickness General Constraint )E7A,ZW,
MNE 0.5 !Minimum Edge Thickness General Constraint ~M'\9
DRA S1..I YES !Draw a picture of lens system at each cycle P/I{q s
GO mzT} C&hfP
!Reanalyze the system. Make sure to "Tear Off" original analysis before !7xp<=
!re-executing to compare optimized system (J$ A
!Re-execute Drawing "}OFwes
VIE Y$ChMf
GO Oq[E\8Wn
!Re-execute MTF jujx3rnK?
MTF =` i 7?
MFR 68 S-rqrbr|AT
IFR 17 34oL l#q*
GO L\Jl'r|
!Re-execute Field (Distortion) Analysis @^` <iTK&p
FIE T?\CAk>
GO m|] ^f;7z
!Save Lens FILE > SAVE LENS AS... GcU/
SAV digcam20_opt
