主要是看人家的操作步骤,想学命令的人请看，十分有用 %8tl JQvu
File > Open (locate saved Workshop 1 lens if it is not open already, digcam20_start.len)
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Display > View Lens (accept defaults, click OK, keep window open) l
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In LDM spreadsheet, select surfaces 1 to Image 1"009/|
Choose Edit > Default Variables, then click in any cell to unselect the range 6|t4\'
Right click in each cell and choose Vary for R}a, .C
Thickness of surfaces 1, 4, 6 <*~vZT i(
Glass of surfaces 1, 4, 6 ^_r8R__S:
File > Save Lens
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Using Quick Analysis tool bar, click… Z} TuVE
Quick Spot Diagram (note scale) _=XzQZT!L
Quick Ray Aberration Plot (note scale) J
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Quick Field Plot (note scales and maximum distortion value) cOth q87:
Analysis > Diffraction > MTF i=@.u=:
Freq/Calc Tab: Maximum 68, Increment 17 B0NKav
Graphics tab: Max plot freq 68 &Jv j@,>$d
Click OK (keep window open, tear off starting MTF graph for later comparison) $ckX H,l_
Optimization > Automatic Design "d>{hP
Output controls: Click Draw System button & aldnJ
General constraints: Min center thickness 0.8, Min edge thickness 0.5 (others default) 9~bje^M
Specific constraints: &!vJ3:
Click Insert Specific Constraint .{LFc|Z[
Default display is Optical Definitions, Effective Focal Length (correct choice) z@^[.
Enter 8.25 for Constraint Target V} =9S@$o
Click OK. qi_[@da f?
File > Save Lens As (new name, digcam20_opt.len) ~xpU<Pd*
Re-run View Lens window to see new lens picture. 8P0XY
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Re-run each of the Quick Analysis windows and note scales. 2j` x^
Re-run the MTF window, compare to tear-off of starting point I4ZL +a
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以下直接复制到命令行即可出最终结果 W~k"`g7uu
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! Command inputs for Workshop 2-2 (for reference)
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!Restore 20 Degree Digital Camera Lens Setup \@vR *E
!FILE > OPEN }:7'C. ."
RES digcam20_start.len r. 0IC*Y
!Vary all radii curvature by right clicking in LDM and selecting VARY *g]q~\b/;
!HINT: for curvatures highlight all and select vary. Then go back and wGD".CS0
!freeze stop surface radius. T~7i:<E^
CCY S1 0 ; CCY S2 0 ; CCY S4 0 ; CCY S5 0 ; CCY S6 0 ; CCY S7 0 3:7 J@>
!Vary all thicknesses by same method. Do not select surface with solve since @T
!varying this surface will delete solve. If mistake, use UNDO or go to \%z#|oV#<
!LENS > SYSTEM DATA > SYSTEM SOLVES and reselect Paraxial Image Solve EFu2& P
THC S1 0 ; THC S2 0 ; THC S3 0 ; THC S4 0 ; THC S5 0 ; THC S6 0 W# E` h
THC S8 0 !Don't forget to vary the image distance which calculates best k`U")lv
!best real-ray focus from paraxial image plane Ol6jx%Je`
!Vary glass by highlighting, right clicking, and selecting Vary H%>
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GC1 S1 0 ; GC1 S4 0 ; GC1 S6 0 M.))UKSF
!Optimize OPTIMIZATION > AUTOMATIC DESIGN >{p&_u.r-
AUT B> *zQb2:
EFL Z1 = 8.25 !Effective Focal Length Constraint Vrz x;V%
MNT 0.8 !Minimum Center Thickness General Constraint j+"i$ln+s
MNE 0.5 !Minimum Edge Thickness General Constraint S:4'k^E
DRA S1..I YES !Draw a picture of lens system at each cycle A(2_hl-
GO 2%i_SX [
!Reanalyze the system. Make sure to "Tear Off" original analysis before S#6{4x4
!re-executing to compare optimized system Q;W[$yvW
!Re-execute Drawing ?pn<lW8d
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GO `&2~\o/
!Re-execute MTF $#4Qv5}
MTF }kzGuNj
MFR 68 u+%Ca,6
IFR 17 xDU>y
GO 'NHtCs=F
!Re-execute Field (Distortion) Analysis ] Ir{9EE
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FIE '8\7(0$c
GO a3 D''Ra
!Save Lens FILE > SAVE LENS AS... !D6
SAV digcam20_opt
