主要是看人家的操作步骤,想学命令的人请看，十分有用 Ig{0Z">
File > Open (locate saved Workshop 1 lens if it is not open already, digcam20_start.len) j#4kY R{
Display > View Lens (accept defaults, click OK, keep window open) c 7H^$_^ =
In LDM spreadsheet, select surfaces 1 to Image U]rRQ
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Choose Edit > Default Variables, then click in any cell to unselect the range `Urhy# LC
Right click in each cell and choose Vary for t%8BK>AHvw
Thickness of surfaces 1, 4, 6 wUJc mM;
Glass of surfaces 1, 4, 6 d&>^&>?$zh
File > Save Lens V !~wj
Using Quick Analysis tool bar, click… 6_B] MN!(
Quick Spot Diagram (note scale) $%f&a3#
Quick Ray Aberration Plot (note scale) 2&cT~ZX&'
Quick Field Plot (note scales and maximum distortion value) o)/ 0a
Analysis > Diffraction > MTF j1<Yg,_ .p
Freq/Calc Tab: Maximum 68, Increment 17 Wx#;E9=Im
Graphics tab: Max plot freq 68 ~wdGd+ez
Click OK (keep window open, tear off starting MTF graph for later comparison) gjlx~.0d
Optimization > Automatic Design {{!-Gr
Output controls: Click Draw System button :Zlwy -[
General constraints: Min center thickness 0.8, Min edge thickness 0.5 (others default) Q/Rqa5LI:
Specific constraints: 1xvu<|F
Click Insert Specific Constraint eyxW 0}[
Default display is Optical Definitions, Effective Focal Length (correct choice) x4O~q0>:Le
Enter 8.25 for Constraint Target gRzxLf`K
Click OK. ! 8 b ^,
File > Save Lens As (new name, digcam20_opt.len) DHRlWQox
Re-run View Lens window to see new lens picture. *m (=V1"
Re-run each of the Quick Analysis windows and note scales. @2#lI
Re-run the MTF window, compare to tear-off of starting point .6J$,.Ig
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以下直接复制到命令行即可出最终结果 mR)w X 6
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! Command inputs for Workshop 2-2 (for reference) -'Mf\h 8
!Restore 20 Degree Digital Camera Lens Setup NxI LRKwO
!FILE > OPEN -G=]=f/'
RES digcam20_start.len ?V=CB,^
!Vary all radii curvature by right clicking in LDM and selecting VARY 9-
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!HINT: for curvatures highlight all and select vary. Then go back and Dt1jW
!freeze stop surface radius. W*Y/l~ x}
CCY S1 0 ; CCY S2 0 ; CCY S4 0 ; CCY S5 0 ; CCY S6 0 ; CCY S7 0 cz$2R
!Vary all thicknesses by same method. Do not select surface with solve since 7j{?aza
!varying this surface will delete solve. If mistake, use UNDO or go to w! XD/j N
!LENS > SYSTEM DATA > SYSTEM SOLVES and reselect Paraxial Image Solve !<h)w#>en
THC S1 0 ; THC S2 0 ; THC S3 0 ; THC S4 0 ; THC S5 0 ; THC S6 0 |':{lH6+1
THC S8 0 !Don't forget to vary the image distance which calculates best qg$ <oL@~~
!best real-ray focus from paraxial image plane |vC~HJpuv'
!Vary glass by highlighting, right clicking, and selecting Vary 9tnD=A<PS
GC1 S1 0 ; GC1 S4 0 ; GC1 S6 0 'c~4+o4co
!Optimize OPTIMIZATION > AUTOMATIC DESIGN %l%HHT
AUT 1.>m@Slr>
EFL Z1 = 8.25 !Effective Focal Length Constraint Alq(QDs
MNT 0.8 !Minimum Center Thickness General Constraint A=>u
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MNE 0.5 !Minimum Edge Thickness General Constraint uw8f ~:LT
DRA S1..I YES !Draw a picture of lens system at each cycle p
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GO v` r:=K
!Reanalyze the system. Make sure to "Tear Off" original analysis before 5IG-~jzCLb
!re-executing to compare optimized system 5-A\9UC*@
!Re-execute Drawing 'hf8ZEW9'
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GO I`#JwMU;m
!Re-execute MTF o !7va "
MTF e:W{OIz:
MFR 68 t`QENXA}
IFR 17 %jM,W}2
GO *lb<$E]="!
!Re-execute Field (Distortion) Analysis }PpUAt~ g
FIE 6H|S ;K+
GO )pn3~t<e d
!Save Lens FILE > SAVE LENS AS... fXB0j;A
SAV digcam20_opt
