主要是看人家的操作步骤,想学命令的人请看，十分有用 jQ_j#_Vle
File > Open (locate saved Workshop 1 lens if it is not open already, digcam20_start.len) .t0Q>:}&b
Display > View Lens (accept defaults, click OK, keep window open) #G^?4Z a
In LDM spreadsheet, select surfaces 1 to Image Ssr
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Choose Edit > Default Variables, then click in any cell to unselect the range vh+Ih Gi
Right click in each cell and choose Vary for }} l04kN_
Thickness of surfaces 1, 4, 6 ?
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Glass of surfaces 1, 4, 6 t8 #&bU X
File > Save Lens #IyxH$
Using Quick Analysis tool bar, click… rRL:]%POT
Quick Spot Diagram (note scale) &B7X LO[
Quick Ray Aberration Plot (note scale) HkEfBQmh
Quick Field Plot (note scales and maximum distortion value) {cKKTDN
Analysis > Diffraction > MTF
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Freq/Calc Tab: Maximum 68, Increment 17 4 ?,N;Q
Graphics tab: Max plot freq 68 }ruBbe Q
Click OK (keep window open, tear off starting MTF graph for later comparison) 9#.nNv*z3
Optimization > Automatic Design ep Eg 6
Output controls: Click Draw System button
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General constraints: Min center thickness 0.8, Min edge thickness 0.5 (others default) >ZuWsA0q
Specific constraints: N%:QaCZKw
Click Insert Specific Constraint PygaW&9Z|d
Default display is Optical Definitions, Effective Focal Length (correct choice) ](@Tbm8
Enter 8.25 for Constraint Target c:4M |t=
Click OK. c63 DuHA*C
File > Save Lens As (new name, digcam20_opt.len) ZPY#<^WOzr
Re-run View Lens window to see new lens picture. )avli@W-3j
Re-run each of the Quick Analysis windows and note scales. DnP>ed"M!
Re-run the MTF window, compare to tear-off of starting point J O`S
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以下直接复制到命令行即可出最终结果 &mKtW$K` q
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! Command inputs for Workshop 2-2 (for reference) P p6(7j
!Restore 20 Degree Digital Camera Lens Setup o4,W!^ n2
!FILE > OPEN B{lBUv(B
RES digcam20_start.len ~%B^`s
!Vary all radii curvature by right clicking in LDM and selecting VARY ! &Vp5]c
!HINT: for curvatures highlight all and select vary. Then go back and CYmwT>P+*4
!freeze stop surface radius. q<yp6Q3^
CCY S1 0 ; CCY S2 0 ; CCY S4 0 ; CCY S5 0 ; CCY S6 0 ; CCY S7 0 e-ILUzT
!Vary all thicknesses by same method. Do not select surface with solve since S
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!varying this surface will delete solve. If mistake, use UNDO or go to lW1Al>dW<
!LENS > SYSTEM DATA > SYSTEM SOLVES and reselect Paraxial Image Solve YgC J s;
THC S1 0 ; THC S2 0 ; THC S3 0 ; THC S4 0 ; THC S5 0 ; THC S6 0 lO9ML-8C1
THC S8 0 !Don't forget to vary the image distance which calculates best WrQ e'ny
!best real-ray focus from paraxial image plane DZ
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!Vary glass by highlighting, right clicking, and selecting Vary 9sifc<z a
GC1 S1 0 ; GC1 S4 0 ; GC1 S6 0 v{"$:Z
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!Optimize OPTIMIZATION > AUTOMATIC DESIGN U@!e&QPn
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EFL Z1 = 8.25 !Effective Focal Length Constraint h W6og)x
MNT 0.8 !Minimum Center Thickness General Constraint 0
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MNE 0.5 !Minimum Edge Thickness General Constraint +6-c<m|
DRA S1..I YES !Draw a picture of lens system at each cycle i<l_z&
GO 8<z+hWX=4
!Reanalyze the system. Make sure to "Tear Off" original analysis before U6e 0{n
!re-executing to compare optimized system ) RS*MEgA
!Re-execute Drawing '.r_6X$7Jt
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GO Pk !RgoWF
!Re-execute MTF D |kdk;Xv
MTF ]*| +06
MFR 68 ) gbns'Z<
IFR 17 gE]6]L
GO *]NG@ ^y
!Re-execute Field (Distortion) Analysis t<w jS|4
FIE ZgK[,<2
GO HjAhz
!Save Lens FILE > SAVE LENS AS... a, i
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SAV digcam20_opt
