主要是看人家的操作步骤,想学命令的人请看，十分有用 KB*=a
File > Open (locate saved Workshop 1 lens if it is not open already, digcam20_start.len) RsfT Ub)<
Display > View Lens (accept defaults, click OK, keep window open) em !R9J.
In LDM spreadsheet, select surfaces 1 to Image ^X %4@,AE
Choose Edit > Default Variables, then click in any cell to unselect the range i bs "Iv34
Right click in each cell and choose Vary for Ec*7n6~9
Thickness of surfaces 1, 4, 6 Jjh!/pWZ4
Glass of surfaces 1, 4, 6 L6=RD<~C
File > Save Lens G%jJ>T4
Using Quick Analysis tool bar, click… VDjIs UUX
Quick Spot Diagram (note scale) Y'0? <_ fj
Quick Ray Aberration Plot (note scale) 3# 9r4;&
Quick Field Plot (note scales and maximum distortion value) Bl\kU8O-
Analysis > Diffraction > MTF aB6LAb2z;T
Freq/Calc Tab: Maximum 68, Increment 17 *"{Z?< 3
Graphics tab: Max plot freq 68 0a 6z "K}
Click OK (keep window open, tear off starting MTF graph for later comparison) C,vc
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Optimization > Automatic Design N: jiZ)
Output controls: Click Draw System button .r %|RWs6W
General constraints: Min center thickness 0.8, Min edge thickness 0.5 (others default) <?Izfl6
Specific constraints: ~.`r(
Click Insert Specific Constraint N/{Yi
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Default display is Optical Definitions, Effective Focal Length (correct choice) i=H>D
Enter 8.25 for Constraint Target Le:mMd= G
Click OK. L9?/ -@M
File > Save Lens As (new name, digcam20_opt.len) XfK.Fj~-
Re-run View Lens window to see new lens picture. )TG0m= *
Re-run each of the Quick Analysis windows and note scales. 7"NJr aQ6
Re-run the MTF window, compare to tear-off of starting point L8xprHgL
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以下直接复制到命令行即可出最终结果 M #=5u`h
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! Command inputs for Workshop 2-2 (for reference) C*6)Ut '
!Restore 20 Degree Digital Camera Lens Setup 8 E+C:"
!FILE > OPEN 4yZ+,hqJ<9
RES digcam20_start.len %R*vSRG/U
!Vary all radii curvature by right clicking in LDM and selecting VARY r5da/*G/O
!HINT: for curvatures highlight all and select vary. Then go back and L0 |hc
!freeze stop surface radius. J}_Dpb [L
CCY S1 0 ; CCY S2 0 ; CCY S4 0 ; CCY S5 0 ; CCY S6 0 ; CCY S7 0 g74z]Uj.B
!Vary all thicknesses by same method. Do not select surface with solve since rjQhU%zv
!varying this surface will delete solve. If mistake, use UNDO or go to Cm<j*Cnl
!LENS > SYSTEM DATA > SYSTEM SOLVES and reselect Paraxial Image Solve .C;_4jE
THC S1 0 ; THC S2 0 ; THC S3 0 ; THC S4 0 ; THC S5 0 ; THC S6 0 v; }`?@G
THC S8 0 !Don't forget to vary the image distance which calculates best C9Z\G 3
!best real-ray focus from paraxial image plane c[ RL Yu
!Vary glass by highlighting, right clicking, and selecting Vary UK_aqB
GC1 S1 0 ; GC1 S4 0 ; GC1 S6 0 CC(*zrOd-
!Optimize OPTIMIZATION > AUTOMATIC DESIGN rbuL@= S@*
AUT C"^hMsU8
EFL Z1 = 8.25 !Effective Focal Length Constraint :htq%gPex9
MNT 0.8 !Minimum Center Thickness General Constraint Z t+FRR=
MNE 0.5 !Minimum Edge Thickness General Constraint N| O]z
DRA S1..I YES !Draw a picture of lens system at each cycle ^N2M/B|0
GO Z*9]:dG:!
!Reanalyze the system. Make sure to "Tear Off" original analysis before P WN'.HQ
!re-executing to compare optimized system CL'X ip')T
!Re-execute Drawing CndgfOF
VIE L8]{ B
GO oSA*~ N:
!Re-execute MTF oBNX8%5w
MTF u !3]RGJ
MFR 68 DMcxa.Sd!
IFR 17 kAB+28A
GO |*c \6 :
!Re-execute Field (Distortion) Analysis 7kX$wQZ_
FIE 4,F3@m:<
GO ;y~{+{{Ow
!Save Lens FILE > SAVE LENS AS... )x8;.@U
SAV digcam20_opt
