主要是看人家的操作步骤,想学命令的人请看，十分有用 h:" <x$F
File > Open (locate saved Workshop 1 lens if it is not open already, digcam20_start.len) -nN }8&l
Display > View Lens (accept defaults, click OK, keep window open) 8NPt[*
In LDM spreadsheet, select surfaces 1 to Image &D qg<U
Choose Edit > Default Variables, then click in any cell to unselect the range u` `FD
Right click in each cell and choose Vary for a[xEN7L~4D
Thickness of surfaces 1, 4, 6 oVb6,Pn
Glass of surfaces 1, 4, 6 fseHuL=~
File > Save Lens Jmf&&)p
Using Quick Analysis tool bar, click… Pf]6'?k Q
Quick Spot Diagram (note scale) V\PGk<VO
Quick Ray Aberration Plot (note scale) 6 jRF[N8
Quick Field Plot (note scales and maximum distortion value) MJ8z"SKnV
Analysis > Diffraction > MTF -HP [IJP
Freq/Calc Tab: Maximum 68, Increment 17 P ` Anf_
Graphics tab: Max plot freq 68 8> T
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Click OK (keep window open, tear off starting MTF graph for later comparison) syv6" 2Z'B
Optimization > Automatic Design @/`b:sv&*
Output controls: Click Draw System button kE UfQLbn
General constraints: Min center thickness 0.8, Min edge thickness 0.5 (others default) p/cVQ
Specific constraints: {#zJx(2yG
Click Insert Specific Constraint 9W 5vp:G
Default display is Optical Definitions, Effective Focal Length (correct choice) w \i#
Enter 8.25 for Constraint Target bxc#bl3
Click OK. L 2Os\
File > Save Lens As (new name, digcam20_opt.len) . AW Re1?
Re-run View Lens window to see new lens picture. $wdIOfaH
Re-run each of the Quick Analysis windows and note scales. k JlRdt2
Re-run the MTF window, compare to tear-off of starting point ].
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以下直接复制到命令行即可出最终结果 Av _1cvR:
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! Command inputs for Workshop 2-2 (for reference) en O5XsIc
!Restore 20 Degree Digital Camera Lens Setup *'QD!Tc
!FILE > OPEN ljlQ9 wb[s
RES digcam20_start.len 1$q SbQ
!Vary all radii curvature by right clicking in LDM and selecting VARY |TkMrj0
!HINT: for curvatures highlight all and select vary. Then go back and #QXB2x<*
!freeze stop surface radius. [9Q2/V;Uk%
CCY S1 0 ; CCY S2 0 ; CCY S4 0 ; CCY S5 0 ; CCY S6 0 ; CCY S7 0 [wjA8d.
!Vary all thicknesses by same method. Do not select surface with solve since oZmni9*SD
!varying this surface will delete solve. If mistake, use UNDO or go to JyjS#BWi
!LENS > SYSTEM DATA > SYSTEM SOLVES and reselect Paraxial Image Solve p3\F1]( Z
THC S1 0 ; THC S2 0 ; THC S3 0 ; THC S4 0 ; THC S5 0 ; THC S6 0 ^ bexXYh
THC S8 0 !Don't forget to vary the image distance which calculates best @2L+"=u#
!best real-ray focus from paraxial image plane mG1=8{o^
!Vary glass by highlighting, right clicking, and selecting Vary L
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GC1 S1 0 ; GC1 S4 0 ; GC1 S6 0 <FRYt-+
!Optimize OPTIMIZATION > AUTOMATIC DESIGN 3(}W=o I
AUT ?Sh]m/WZd[
EFL Z1 = 8.25 !Effective Focal Length Constraint u0A.I_
MNT 0.8 !Minimum Center Thickness General Constraint vc^qp Ok
MNE 0.5 !Minimum Edge Thickness General Constraint =CFO]9
DRA S1..I YES !Draw a picture of lens system at each cycle Oq|RMl
GO f]qP xRw
!Reanalyze the system. Make sure to "Tear Off" original analysis before ; xN 4L
!re-executing to compare optimized system *=$Jv1"Q
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!Re-execute Drawing 7Fh%jRHZ`
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GO O<
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!Re-execute MTF lOCMKaC D
MTF 'Wn'BRXq3
MFR 68 <2fZYt vt
IFR 17 ^{DXin 1O`
GO _<+!
!Re-execute Field (Distortion) Analysis ^r?ZrbSbz
FIE &j<B22t!
GO Xat>d>nJ]
!Save Lens FILE > SAVE LENS AS... %u, H2 *
SAV digcam20_opt
