主要是看人家的操作步骤,想学命令的人请看，十分有用 {b8 Y-
File > Open (locate saved Workshop 1 lens if it is not open already, digcam20_start.len) ?VHwYD.B
Display > View Lens (accept defaults, click OK, keep window open) b|C,b"$N0
In LDM spreadsheet, select surfaces 1 to Image 0 GLB3I >
Choose Edit > Default Variables, then click in any cell to unselect the range J}` $WL:
Right click in each cell and choose Vary for 7'l{I'Z
Thickness of surfaces 1, 4, 6 [,V92-s;N
Glass of surfaces 1, 4, 6 EYj2h
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File > Save Lens nJ`a1 L{N
Using Quick Analysis tool bar, click… ?
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Quick Spot Diagram (note scale) 2nz'/G
Quick Ray Aberration Plot (note scale) lb XkZ ,
Quick Field Plot (note scales and maximum distortion value) p[+me o
Analysis > Diffraction > MTF Yoym5<xE
Freq/Calc Tab: Maximum 68, Increment 17 [[Eu?vQ9R
Graphics tab: Max plot freq 68 At_Y$N:
Click OK (keep window open, tear off starting MTF graph for later comparison) Bd]DhPhJ
Optimization > Automatic Design ~k_zMU-1
Output controls: Click Draw System button L,ey3i7a\
General constraints: Min center thickness 0.8, Min edge thickness 0.5 (others default) rnrx%Q
Specific constraints: #1l S\!
Click Insert Specific Constraint ~5?n& pF
Default display is Optical Definitions, Effective Focal Length (correct choice) vnOF$6n
Enter 8.25 for Constraint Target <'yC:HeAwD
Click OK. gKH"f% lK
File > Save Lens As (new name, digcam20_opt.len) %3B>1h9N
Re-run View Lens window to see new lens picture. _|#|mb4Fe
Re-run each of the Quick Analysis windows and note scales. * =N 6_
Re-run the MTF window, compare to tear-off of starting point 7)X&fV6<8
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以下直接复制到命令行即可出最终结果 ]cY'6'}Hz
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! Command inputs for Workshop 2-2 (for reference) " f$A0RL
!Restore 20 Degree Digital Camera Lens Setup ?ew]i' 9(
!FILE > OPEN B=xZkc
RES digcam20_start.len C jb p-
!Vary all radii curvature by right clicking in LDM and selecting VARY ]=$ ay0HC
!HINT: for curvatures highlight all and select vary. Then go back and ZQ8 Aak
!freeze stop surface radius. x \{jWR%
CCY S1 0 ; CCY S2 0 ; CCY S4 0 ; CCY S5 0 ; CCY S6 0 ; CCY S7 0 EjCs
!Vary all thicknesses by same method. Do not select surface with solve since QU;C*}0Zl
!varying this surface will delete solve. If mistake, use UNDO or go to fmyS#
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!LENS > SYSTEM DATA > SYSTEM SOLVES and reselect Paraxial Image Solve ]$*_2V3VA$
THC S1 0 ; THC S2 0 ; THC S3 0 ; THC S4 0 ; THC S5 0 ; THC S6 0 .-*nD8b
THC S8 0 !Don't forget to vary the image distance which calculates best +*~3"ww<
!best real-ray focus from paraxial image plane >R0j<:p :
!Vary glass by highlighting, right clicking, and selecting Vary ^IZ0M1&W;
GC1 S1 0 ; GC1 S4 0 ; GC1 S6 0 mT$tAwzTC{
!Optimize OPTIMIZATION > AUTOMATIC DESIGN #FM 'S|
AUT 90I 3_[Ii
EFL Z1 = 8.25 !Effective Focal Length Constraint 7oSuLo=
MNT 0.8 !Minimum Center Thickness General Constraint akoKx)(<
MNE 0.5 !Minimum Edge Thickness General Constraint "qp _*Y
DRA S1..I YES !Draw a picture of lens system at each cycle ,6)y4=8 L
GO ?5M2DLh~
!Reanalyze the system. Make sure to "Tear Off" original analysis before d$
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!re-executing to compare optimized system b%$C!Tq'
!Re-execute Drawing he6)
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VIE : \`MrI^
GO L{ Zy7O]"d
!Re-execute MTF O&%T_Zk@@
MTF :
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MFR 68 2}#PDh n
IFR 17 j<5R$^?U
GO #&gy@!a~
!Re-execute Field (Distortion) Analysis L zy|<:K+$
FIE K 6Ua~N ^
GO ,g.=vQm: ?
!Save Lens FILE > SAVE LENS AS... ]<_+uciP5[
SAV digcam20_opt
