| longlllooo |
2006-03-27 20:24 |
主要是看人家的操作步骤,想学命令的人请看，十分有用 a3 D''Ra
File > Open (locate saved Workshop 1 lens if it is not open already, digcam20_start.len) ]=\vl>W
Display > View Lens (accept defaults, click OK, keep window open) /(Mi2$@v1
In LDM spreadsheet, select surfaces 1 to Image C4wJSQl _I
Choose Edit > Default Variables, then click in any cell to unselect the range |^9+c2
Right click in each cell and choose Vary for b5K6F:D22
Thickness of surfaces 1, 4, 6 (?R;u>
Glass of surfaces 1, 4, 6 s+IU%y/9$a
File > Save Lens $BHbnsaQ
Using Quick Analysis tool bar, click… jej|B# ?`
Quick Spot Diagram (note scale) l3kYfq{";"
Quick Ray Aberration Plot (note scale) eD5:0;X2
Quick Field Plot (note scales and maximum distortion value) -5;Kyio
Analysis > Diffraction > MTF /Iht,@%E
Freq/Calc Tab: Maximum 68, Increment 17 ZI. ;7G@|
Graphics tab: Max plot freq 68 .>?h
Click OK (keep window open, tear off starting MTF graph for later comparison) b-4g HW
Optimization > Automatic Design 0 kC}qru'
Output controls: Click Draw System button 5@l[!Jl0k
General constraints: Min center thickness 0.8, Min edge thickness 0.5 (others default) :'1UX <&B
Specific constraints: |m{Q_zAB
Click Insert Specific Constraint 4#hDt ^N~
Default display is Optical Definitions, Effective Focal Length (correct choice) X 'D ~#r
Enter 8.25 for Constraint Target 0-Z
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Click OK. $7M/rF;N5X
File > Save Lens As (new name, digcam20_opt.len) Ip c2Qsa
Re-run View Lens window to see new lens picture. +LBDn"5
Re-run each of the Quick Analysis windows and note scales. :eIPPh|\
Re-run the MTF window, compare to tear-off of starting point '2)c;/-E
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以下直接复制到命令行即可出最终结果 S}fU2Wi
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! Command inputs for Workshop 2-2 (for reference) 5W hR |
!Restore 20 Degree Digital Camera Lens Setup yLv jfP1
!FILE > OPEN 2K >tI9);
RES digcam20_start.len @L?X}'0xI4
!Vary all radii curvature by right clicking in LDM and selecting VARY ^Ej4^d
!HINT: for curvatures highlight all and select vary. Then go back and w\(LG_n|
!freeze stop surface radius. tF:'Y ~3 p
CCY S1 0 ; CCY S2 0 ; CCY S4 0 ; CCY S5 0 ; CCY S6 0 ; CCY S7 0 !%w#h0(b
!Vary all thicknesses by same method. Do not select surface with solve since \1 ` L-lz
!varying this surface will delete solve. If mistake, use UNDO or go to Y)D~@|D,
!LENS > SYSTEM DATA > SYSTEM SOLVES and reselect Paraxial Image Solve F\pw0^K;N
THC S1 0 ; THC S2 0 ; THC S3 0 ; THC S4 0 ; THC S5 0 ; THC S6 0 dFdll3bC
THC S8 0 !Don't forget to vary the image distance which calculates best *qx<bY@F
!best real-ray focus from paraxial image plane WY=RJe2
!Vary glass by highlighting, right clicking, and selecting Vary D@]gc&JN[
GC1 S1 0 ; GC1 S4 0 ; GC1 S6 0 O[nl#$w
!Optimize OPTIMIZATION > AUTOMATIC DESIGN ;=rM Ii
AUT a2:Tu
EFL Z1 = 8.25 !Effective Focal Length Constraint \)?mIwo7~
MNT 0.8 !Minimum Center Thickness General Constraint @3D8TPH
MNE 0.5 !Minimum Edge Thickness General Constraint dU!`aPL?
DRA S1..I YES !Draw a picture of lens system at each cycle / D9FjOP
GO 6Mpbmf r
!Reanalyze the system. Make sure to "Tear Off" original analysis before 9C$#A +~C
!re-executing to compare optimized system 2m`4B_g A
!Re-execute Drawing
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VIE 8 I'1~d%$
GO ZqI.n4:9
!Re-execute MTF D+ki2UVt&
MTF Y~RZf /`
MFR 68 c[=%v]j:u
IFR 17 doR'E= Z4h
GO 'Wq SHb 7
!Re-execute Field (Distortion) Analysis apW0(&\
FIE 0 O{Y
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GO wp/u *g
!Save Lens FILE > SAVE LENS AS... WIwbf |\
SAV digcam20_opt
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