主要是看人家的操作步骤,想学命令的人请看，十分有用 WI~%n
File > Open (locate saved Workshop 1 lens if it is not open already, digcam20_start.len) pF !vW
Display > View Lens (accept defaults, click OK, keep window open) 9=}/ t9k
In LDM spreadsheet, select surfaces 1 to Image G? _,(
Choose Edit > Default Variables, then click in any cell to unselect the range L"-&B$B:
Right click in each cell and choose Vary for ut,"[+ J
Thickness of surfaces 1, 4, 6 'Qfy+_0
Glass of surfaces 1, 4, 6 v4 .V%tg!
File > Save Lens QA 9vH'
Using Quick Analysis tool bar, click… ; yXnPAtJ
Quick Spot Diagram (note scale) u A,{C%?
Quick Ray Aberration Plot (note scale) nag to^5X
Quick Field Plot (note scales and maximum distortion value) ,Z^GN%Q7a
Analysis > Diffraction > MTF ?-Z:N`YP
Freq/Calc Tab: Maximum 68, Increment 17 [}Iq-sz;0
Graphics tab: Max plot freq 68 DtS{iH=s]
Click OK (keep window open, tear off starting MTF graph for later comparison) .KLuGb 3JJ
Optimization > Automatic Design N|)V/no 6
Output controls: Click Draw System button VA%i_P,
General constraints: Min center thickness 0.8, Min edge thickness 0.5 (others default) W P&zF$
Specific constraints: {2Ibd i
Click Insert Specific Constraint [aC9vEso!
Default display is Optical Definitions, Effective Focal Length (correct choice) & tOD
Enter 8.25 for Constraint Target NNdS:(
Click OK. dEp=;b s
File > Save Lens As (new name, digcam20_opt.len) v J'
93 h
Re-run View Lens window to see new lens picture. NEH$&%OV?
Re-run each of the Quick Analysis windows and note scales. xd. C&Dx5
Re-run the MTF window, compare to tear-off of starting point /Rz,2jfRx'
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以下直接复制到命令行即可出最终结果 cA\W|A)
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! Command inputs for Workshop 2-2 (for reference) 9|m L
!Restore 20 Degree Digital Camera Lens Setup Y|~> (
!FILE > OPEN D-!%L<<
RES digcam20_start.len E;Hjw0M'k
!Vary all radii curvature by right clicking in LDM and selecting VARY z~5'p(|@f
!HINT: for curvatures highlight all and select vary. Then go back and el%Qxak`"
!freeze stop surface radius. )1,&YJM*6l
CCY S1 0 ; CCY S2 0 ; CCY S4 0 ; CCY S5 0 ; CCY S6 0 ; CCY S7 0 I$LO0avvH2
!Vary all thicknesses by same method. Do not select surface with solve since !;a <E:
!varying this surface will delete solve. If mistake, use UNDO or go to 5b'S~Qj#r$
!LENS > SYSTEM DATA > SYSTEM SOLVES and reselect Paraxial Image Solve O5?Eb
THC S1 0 ; THC S2 0 ; THC S3 0 ; THC S4 0 ; THC S5 0 ; THC S6 0 |{K:.x#^
THC S8 0 !Don't forget to vary the image distance which calculates best *)1z-rH`
!best real-ray focus from paraxial image plane iE`aGoA
!Vary glass by highlighting, right clicking, and selecting Vary "lZ<bG
GC1 S1 0 ; GC1 S4 0 ; GC1 S6 0 2Qj)@&zKe#
!Optimize OPTIMIZATION > AUTOMATIC DESIGN ZB% ~>
AUT g < o ;\\
EFL Z1 = 8.25 !Effective Focal Length Constraint ~] 2R +
MNT 0.8 !Minimum Center Thickness General Constraint ( -@>
MNE 0.5 !Minimum Edge Thickness General Constraint M[{:o/]<
DRA S1..I YES !Draw a picture of lens system at each cycle J5T#}!f
GO AlxS?f2w
!Reanalyze the system. Make sure to "Tear Off" original analysis before {@%(0d{n}
!re-executing to compare optimized system pAuwS n#i
!Re-execute Drawing ?OyW|jL
VIE TbVL71c
GO eV0S:mit
!Re-execute MTF +GS=zNw#
MTF xn8B|axB
MFR 68 R2`g?5v
IFR 17 S/;Y4o
GO 1n"X?K5;A
!Re-execute Field (Distortion) Analysis Se8y-AL6x>
FIE E}=NZqOB!
GO #^ #i]{g
!Save Lens FILE > SAVE LENS AS... )M 0O=Cl1
SAV digcam20_opt
