主要是看人家的操作步骤,想学命令的人请看，十分有用 R ri`dmH
File > Open (locate saved Workshop 1 lens if it is not open already, digcam20_start.len) A- wRah.M
Display > View Lens (accept defaults, click OK, keep window open) mp\%M
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In LDM spreadsheet, select surfaces 1 to Image Y"!uU.=xJ
Choose Edit > Default Variables, then click in any cell to unselect the range | ^GyH$.
Right click in each cell and choose Vary for i:Y \`J
Thickness of surfaces 1, 4, 6 zOGR+Gq_Z
Glass of surfaces 1, 4, 6 U<Jt50O
File > Save Lens 6E|S
Using Quick Analysis tool bar, click… eH
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Quick Spot Diagram (note scale) kus}W J
Quick Ray Aberration Plot (note scale) ;6m;M63 z
Quick Field Plot (note scales and maximum distortion value) 4D"4zp7
Analysis > Diffraction > MTF r{[OJc!
Freq/Calc Tab: Maximum 68, Increment 17 oT&m4I
Graphics tab: Max plot freq 68 , 2`~ NPb
Click OK (keep window open, tear off starting MTF graph for later comparison) (C S8(C4[
Optimization > Automatic Design SDBt @=Nl
Output controls: Click Draw System button 8Xn!Kpa
General constraints: Min center thickness 0.8, Min edge thickness 0.5 (others default) ; 7rv
Specific constraints: 7=k^M, a
Click Insert Specific Constraint :a3 xvN-l
Default display is Optical Definitions, Effective Focal Length (correct choice) $}tjS3klr
Enter 8.25 for Constraint Target kuKa8c
Click OK. nQ=aLV +'
File > Save Lens As (new name, digcam20_opt.len) Do*n#=
Re-run View Lens window to see new lens picture. WRp yr
Re-run each of the Quick Analysis windows and note scales. AyV rk
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Re-run the MTF window, compare to tear-off of starting point 4tJ a-7
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以下直接复制到命令行即可出最终结果 9%!dNnUk
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! Command inputs for Workshop 2-2 (for reference) nPA@h
!Restore 20 Degree Digital Camera Lens Setup Q_O*oT(0
!FILE > OPEN nvyB/
RES digcam20_start.len T20VX 8gX
!Vary all radii curvature by right clicking in LDM and selecting VARY r:9gf?(&
!HINT: for curvatures highlight all and select vary. Then go back and $j*Qo/x d
!freeze stop surface radius. g1|w? pI1
CCY S1 0 ; CCY S2 0 ; CCY S4 0 ; CCY S5 0 ; CCY S6 0 ; CCY S7 0 N.hzKq][
!Vary all thicknesses by same method. Do not select surface with solve since DWf$X1M
!varying this surface will delete solve. If mistake, use UNDO or go to 5 DFZ ^~
!LENS > SYSTEM DATA > SYSTEM SOLVES and reselect Paraxial Image Solve <z) E (J\
THC S1 0 ; THC S2 0 ; THC S3 0 ; THC S4 0 ; THC S5 0 ; THC S6 0 W`L!N& fB
THC S8 0 !Don't forget to vary the image distance which calculates best `\b+[Nes
!best real-ray focus from paraxial image plane 3f&|h^\nD
!Vary glass by highlighting, right clicking, and selecting Vary NP_?f%(
GC1 S1 0 ; GC1 S4 0 ; GC1 S6 0 : F9|&q-W,
!Optimize OPTIMIZATION > AUTOMATIC DESIGN BSzkW}3q9
AUT =2 jhII
EFL Z1 = 8.25 !Effective Focal Length Constraint ~&g a1r2v?
MNT 0.8 !Minimum Center Thickness General Constraint P(ZQDTbM
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MNE 0.5 !Minimum Edge Thickness General Constraint edpW8eND
DRA S1..I YES !Draw a picture of lens system at each cycle ) Yj%#
GO <qeCso
!Reanalyze the system. Make sure to "Tear Off" original analysis before 3!#/k+,C
!re-executing to compare optimized system JwP:2-o
!Re-execute Drawing L P<<'(l`
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GO rFu ez$
!Re-execute MTF C}"@RHEu
MTF ZkWL_ H)
MFR 68 p^X^ 1X7
IFR 17 5H
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GO KoHGweKl#
!Re-execute Field (Distortion) Analysis F
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FIE CqoG.1jJS
GO -dRFA2 Y
!Save Lens FILE > SAVE LENS AS... bFGDgwe z
SAV digcam20_opt
