主要是看人家的操作步骤,想学命令的人请看，十分有用 (I{rLS!o,L
File > Open (locate saved Workshop 1 lens if it is not open already, digcam20_start.len) v)t:|Q{I
Display > View Lens (accept defaults, click OK, keep window open) JJ2_h VU
In LDM spreadsheet, select surfaces 1 to Image cir$voL
Choose Edit > Default Variables, then click in any cell to unselect the range m\r@@!
Right click in each cell and choose Vary for {NFr]LGOp
Thickness of surfaces 1, 4, 6 6BbGA*%{
Glass of surfaces 1, 4, 6 +&( Mgbna
File > Save Lens yt=3sq
Using Quick Analysis tool bar, click… p,>5\Zre~
Quick Spot Diagram (note scale) >TnTnF WX
Quick Ray Aberration Plot (note scale) Zrk4*/
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Quick Field Plot (note scales and maximum distortion value) EGzzHIZ`!
Analysis > Diffraction > MTF ,<tX%n`v=
Freq/Calc Tab: Maximum 68, Increment 17 kG@@ot" n
Graphics tab: Max plot freq 68 =JbRu|/
Click OK (keep window open, tear off starting MTF graph for later comparison) X#TQ _T"
Optimization > Automatic Design P.;aMRMR
Output controls: Click Draw System button pU%n]]qF
General constraints: Min center thickness 0.8, Min edge thickness 0.5 (others default) .C( eh
Specific constraints: J|kR5'?x
Click Insert Specific Constraint Z/0fXn})
Default display is Optical Definitions, Effective Focal Length (correct choice) dx &'fe*?
Enter 8.25 for Constraint Target y 4I6
Click OK. bg&zo;Ck8T
File > Save Lens As (new name, digcam20_opt.len) ?:8ido#-
Re-run View Lens window to see new lens picture. Vp*KfS]
Re-run each of the Quick Analysis windows and note scales. SmdjyK1~8
Re-run the MTF window, compare to tear-off of starting point hj B@o#S
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以下直接复制到命令行即可出最终结果 v7jq@#-
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! Command inputs for Workshop 2-2 (for reference) q[`]D7W
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!Restore 20 Degree Digital Camera Lens Setup +HeTtFo{M
!FILE > OPEN ceM6{N<_U
RES digcam20_start.len UAFwi%@!-q
!Vary all radii curvature by right clicking in LDM and selecting VARY =Ja] T~0A
!HINT: for curvatures highlight all and select vary. Then go back and -pa )K"z
!freeze stop surface radius. eg?<m KrZ
CCY S1 0 ; CCY S2 0 ; CCY S4 0 ; CCY S5 0 ; CCY S6 0 ; CCY S7 0 }Q ?c"H!/
!Vary all thicknesses by same method. Do not select surface with solve since ];a=Pn-:}G
!varying this surface will delete solve. If mistake, use UNDO or go to V=qwwY z~
!LENS > SYSTEM DATA > SYSTEM SOLVES and reselect Paraxial Image Solve $Ifmc` r1
THC S1 0 ; THC S2 0 ; THC S3 0 ; THC S4 0 ; THC S5 0 ; THC S6 0 !?p%xj?
THC S8 0 !Don't forget to vary the image distance which calculates best v'qG26
!best real-ray focus from paraxial image plane i2Y uOV!
!Vary glass by highlighting, right clicking, and selecting Vary 'EF9Zt 8
GC1 S1 0 ; GC1 S4 0 ; GC1 S6 0 ') gi%
!Optimize OPTIMIZATION > AUTOMATIC DESIGN d `nVc50
AUT OjF_ %5
EFL Z1 = 8.25 !Effective Focal Length Constraint )Xak JU^o
MNT 0.8 !Minimum Center Thickness General Constraint WZ7BoDa7O
MNE 0.5 !Minimum Edge Thickness General Constraint 3'qJ/*]9
DRA S1..I YES !Draw a picture of lens system at each cycle r>"
GO wS+ ^K
!Reanalyze the system. Make sure to "Tear Off" original analysis before /X(t1 +
!re-executing to compare optimized system C>$E%=h+_
!Re-execute Drawing ll6wpV0m
VIE wsN?[=l{s
GO Bck7\
!Re-execute MTF #u"k~La
MTF 6morum
MFR 68 _$f9]bab
IFR 17 MHai%E
GO [}8|R0KF
!Re-execute Field (Distortion) Analysis YZ7|K<
FIE X4t s)>"d
GO x~{;TZa[I
!Save Lens FILE > SAVE LENS AS... .J.-Mm` .
SAV digcam20_opt
