主要是看人家的操作步骤,想学命令的人请看，十分有用 )vG xF}I3
File > Open (locate saved Workshop 1 lens if it is not open already, digcam20_start.len) p R ! m
Display > View Lens (accept defaults, click OK, keep window open) RH;A|[7T&
In LDM spreadsheet, select surfaces 1 to Image
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Choose Edit > Default Variables, then click in any cell to unselect the range XM` &/)
Right click in each cell and choose Vary for xN!In-v[j;
Thickness of surfaces 1, 4, 6 zOYG`:/'
Glass of surfaces 1, 4, 6 MKX58y{+
File > Save Lens 7 LiyA<
Using Quick Analysis tool bar, click… ! _- Uwg
Quick Spot Diagram (note scale) ~ e686L0j
Quick Ray Aberration Plot (note scale) =Nr?F '<
Quick Field Plot (note scales and maximum distortion value) X#ud_+6x
Analysis > Diffraction > MTF Xc<Hm
Freq/Calc Tab: Maximum 68, Increment 17 b{.Y?.U
Graphics tab: Max plot freq 68 jPs{ Mr<
Click OK (keep window open, tear off starting MTF graph for later comparison) jM>;l6l
Optimization > Automatic Design -(z w80@&
Output controls: Click Draw System button C-&s$5MzGb
General constraints: Min center thickness 0.8, Min edge thickness 0.5 (others default) 5a:Y zQ4
Specific constraints:
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Click Insert Specific Constraint RP9~n)h~b
Default display is Optical Definitions, Effective Focal Length (correct choice) ?v&2^d4C*F
Enter 8.25 for Constraint Target #r@>.S=U]
Click OK. UryHte
File > Save Lens As (new name, digcam20_opt.len) lN*"?%<x>
Re-run View Lens window to see new lens picture. "J 2v8c
Re-run each of the Quick Analysis windows and note scales. )!'7!" $
Re-run the MTF window, compare to tear-off of starting point o v1#BeQ
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以下直接复制到命令行即可出最终结果 1+xi1w}3a
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! Command inputs for Workshop 2-2 (for reference) r>t|.=!
!Restore 20 Degree Digital Camera Lens Setup e_3B\59k
!FILE > OPEN J> fq5
RES digcam20_start.len a@! O}f*
!Vary all radii curvature by right clicking in LDM and selecting VARY dlMjy$/T
!HINT: for curvatures highlight all and select vary. Then go back and )+f"J$ah
!freeze stop surface radius. Cjj(v7[E
CCY S1 0 ; CCY S2 0 ; CCY S4 0 ; CCY S5 0 ; CCY S6 0 ; CCY S7 0 1/ A|$t[
!Vary all thicknesses by same method. Do not select surface with solve since 1|$J>
!varying this surface will delete solve. If mistake, use UNDO or go to 9jllW[`2F
!LENS > SYSTEM DATA > SYSTEM SOLVES and reselect Paraxial Image Solve _Bhd@S!
THC S1 0 ; THC S2 0 ; THC S3 0 ; THC S4 0 ; THC S5 0 ; THC S6 0 nE4rB\
THC S8 0 !Don't forget to vary the image distance which calculates best a@#<qf8g
!best real-ray focus from paraxial image plane ,t39~ w
!Vary glass by highlighting, right clicking, and selecting Vary `* cJc6
GC1 S1 0 ; GC1 S4 0 ; GC1 S6 0 uC2q P)m,^
!Optimize OPTIMIZATION > AUTOMATIC DESIGN 6df`]s c
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EFL Z1 = 8.25 !Effective Focal Length Constraint .GvZv>
MNT 0.8 !Minimum Center Thickness General Constraint X @X`,/{X
MNE 0.5 !Minimum Edge Thickness General Constraint y .a)M?3
DRA S1..I YES !Draw a picture of lens system at each cycle *]ME]2qP
GO G_xql_QR
!Reanalyze the system. Make sure to "Tear Off" original analysis before VgMuX3=
!re-executing to compare optimized system B X O,
!Re-execute Drawing iGNZC{
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GO >dwY( a
!Re-execute MTF 1JZhcfG
MTF
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MFR 68 |j 4;XaG)
IFR 17 cK'}+
GO R%Xz3 Z&|
!Re-execute Field (Distortion) Analysis o>I,$=
FIE th+LScOX
GO %%lJyLq'Vk
!Save Lens FILE > SAVE LENS AS... 1z@{ 4)
SAV digcam20_opt
