主要是看人家的操作步骤,想学命令的人请看，十分有用 k VI#(uO
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) Y
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In LDM spreadsheet, select surfaces 1 to Image ~Au,#7X)
Choose Edit > Default Variables, then click in any cell to unselect the range )CI1;
Right click in each cell and choose Vary for 4 > ^ K:/y
Thickness of surfaces 1, 4, 6 5dx&Qu'}ZS
Glass of surfaces 1, 4, 6 &`Y!;@K9W#
File > Save Lens &)i|$J 2.
Using Quick Analysis tool bar, click… dX8hp Q
Quick Spot Diagram (note scale) ( nW67YTr
Quick Ray Aberration Plot (note scale) Ae^X35
Quick Field Plot (note scales and maximum distortion value) @
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Analysis > Diffraction > MTF c[}(O H
Freq/Calc Tab: Maximum 68, Increment 17 eMOD;{Q?X
Graphics tab: Max plot freq 68 D3Jr3
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Click OK (keep window open, tear off starting MTF graph for later comparison) p3ISWJa!
Optimization > Automatic Design q0%
Output controls: Click Draw System button S1n3(U:m
General constraints: Min center thickness 0.8, Min edge thickness 0.5 (others default) c4e_6=I v
Specific constraints: L_ Q#(in
Click Insert Specific Constraint |vte =)%
Default display is Optical Definitions, Effective Focal Length (correct choice) 1\RGM<q$f
Enter 8.25 for Constraint Target 9 7%0;a8
Click OK. K.C>
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File > Save Lens As (new name, digcam20_opt.len) sUl6hX4
Re-run View Lens window to see new lens picture. f:zFFpP.j@
Re-run each of the Quick Analysis windows and note scales. {)- .xG
Re-run the MTF window, compare to tear-off of starting point g#NZ ,~
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以下直接复制到命令行即可出最终结果 @L84>3O
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! Command inputs for Workshop 2-2 (for reference) 2)?(R;$,
!Restore 20 Degree Digital Camera Lens Setup c~A4gt B=
!FILE > OPEN 8,?v?uE
RES digcam20_start.len xy+QbD T
!Vary all radii curvature by right clicking in LDM and selecting VARY _FbC{yI8;
!HINT: for curvatures highlight all and select vary. Then go back and STfyCt S
!freeze stop surface radius. ) T907I|
CCY S1 0 ; CCY S2 0 ; CCY S4 0 ; CCY S5 0 ; CCY S6 0 ; CCY S7 0 zW w2V}U!
!Vary all thicknesses by same method. Do not select surface with solve since })vOaYT|-
!varying this surface will delete solve. If mistake, use UNDO or go to [MX;,%;;
!LENS > SYSTEM DATA > SYSTEM SOLVES and reselect Paraxial Image Solve 0YH+B
THC S1 0 ; THC S2 0 ; THC S3 0 ; THC S4 0 ; THC S5 0 ; THC S6 0 2Zuq?1=
THC S8 0 !Don't forget to vary the image distance which calculates best j^`X~gE
!best real-ray focus from paraxial image plane !DjvsG1x
!Vary glass by highlighting, right clicking, and selecting Vary 6
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GC1 S1 0 ; GC1 S4 0 ; GC1 S6 0 r#WT`pav
!Optimize OPTIMIZATION > AUTOMATIC DESIGN Q8p&Ki;i
AUT W-RqN!snJ8
EFL Z1 = 8.25 !Effective Focal Length Constraint v/uO&iQw5
MNT 0.8 !Minimum Center Thickness General Constraint (-7ZI"Ku
MNE 0.5 !Minimum Edge Thickness General Constraint ]u-SL md
DRA S1..I YES !Draw a picture of lens system at each cycle F0~k1TDw
GO JGiKBm ;
!Reanalyze the system. Make sure to "Tear Off" original analysis before )/4(e?%=
!re-executing to compare optimized system )g|
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!Re-execute Drawing 9L%I<5i
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GO I9$c F)zk
!Re-execute MTF 7>o .0
MTF 78n}rT%k1
MFR 68 PDx)S7+w[
IFR 17 @$Qof1j'%
GO W!$zXwY }(
!Re-execute Field (Distortion) Analysis i< (s}wg
FIE m:tiY
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GO /rB {[zk
!Save Lens FILE > SAVE LENS AS... qg z*'_S
SAV digcam20_opt
