| longlllooo |
2006-03-27 20:26 |
主要是看人家的操作步骤,想学命令的人请看，十分有用 l4R<`b\Jt
File > Open (locate saved Workshop 1 lens if it is not open already, digcam20_start.len) ' lQ
Display > View Lens (accept defaults, click OK, keep window open) ?yK%]1O
In LDM spreadsheet, select surfaces 1 to Image C*Y
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Choose Edit > Default Variables, then click in any cell to unselect the range [wXw Kr
Right click in each cell and choose Vary for F[Guy7?O
Thickness of surfaces 1, 4, 6 gPA>*;?E;@
Glass of surfaces 1, 4, 6 #dx J#
File > Save Lens F$"MFdc[
Using Quick Analysis tool bar, click… 6!gtve_
Quick Spot Diagram (note scale) Kt/+P S
Quick Ray Aberration Plot (note scale) Q"l"p:n%n
Quick Field Plot (note scales and maximum distortion value) .(gT+5[
Analysis > Diffraction > MTF a:(: :m
Freq/Calc Tab: Maximum 68, Increment 17 $?CBX27AV
Graphics tab: Max plot freq 68 i-Ge *?
Click OK (keep window open, tear off starting MTF graph for later comparison) l,^i5t'
Optimization > Automatic Design 0|K/=dh5+
Output controls: Click Draw System button mE3SiR "
General constraints: Min center thickness 0.8, Min edge thickness 0.5 (others default) }uV?
Specific constraints: K%aPl~e
Click Insert Specific Constraint 7Y_fF1-wY
Default display is Optical Definitions, Effective Focal Length (correct choice) JsWq._O{/
Enter 8.25 for Constraint Target }
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Click OK. 76u/WC>B
File > Save Lens As (new name, digcam20_opt.len) 1OfSq1G>v$
Re-run View Lens window to see new lens picture. 6B!j(R
Re-run each of the Quick Analysis windows and note scales. h1G*y
Re-run the MTF window, compare to tear-off of starting point xqi *N13
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以下直接复制到命令行即可出最终结果 tNi% }~Z
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! Command inputs for Workshop 2-2 (for reference) #*7 /05)
!Restore 20 Degree Digital Camera Lens Setup iA^ +/Lt
!FILE > OPEN t ^bdi} [
RES digcam20_start.len u]>>B>KOJ7
!Vary all radii curvature by right clicking in LDM and selecting VARY : DJ7 d
!HINT: for curvatures highlight all and select vary. Then go back and ="'P= Xh!8
!freeze stop surface radius. yjM@/b
CCY S1 0 ; CCY S2 0 ; CCY S4 0 ; CCY S5 0 ; CCY S6 0 ; CCY S7 0 _L `N^I.
!Vary all thicknesses by same method. Do not select surface with solve since ?( dYW7S
!varying this surface will delete solve. If mistake, use UNDO or go to 35N/v G0
!LENS > SYSTEM DATA > SYSTEM SOLVES and reselect Paraxial Image Solve %M0mwt y]
THC S1 0 ; THC S2 0 ; THC S3 0 ; THC S4 0 ; THC S5 0 ; THC S6 0 fEv<W
THC S8 0 !Don't forget to vary the image distance which calculates best U_
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!best real-ray focus from paraxial image plane 3A}nNHpN
!Vary glass by highlighting, right clicking, and selecting Vary ou,=MpXx*
GC1 S1 0 ; GC1 S4 0 ; GC1 S6 0 Jv4D^>yj[
!Optimize OPTIMIZATION > AUTOMATIC DESIGN C^\*|=*\
AUT r
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EFL Z1 = 8.25 !Effective Focal Length Constraint 9,EaN{GM
MNT 0.8 !Minimum Center Thickness General Constraint 5qtmb4R ~
MNE 0.5 !Minimum Edge Thickness General Constraint 8 t*%q+Z
DRA S1..I YES !Draw a picture of lens system at each cycle e k;&<Z_ ]
GO s2kZZP8-
!Reanalyze the system. Make sure to "Tear Off" original analysis before Rm\ '];
!re-executing to compare optimized system ,Q /nS$
!Re-execute Drawing X\$W'^ np
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GO ,p/b$d1p
!Re-execute MTF l
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MTF BtNW5'^
MFR 68 uZiY<(X
IFR 17 F#}1{$)%
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GO J PzQBc5 e
!Re-execute Field (Distortion) Analysis f;tyoN0wHx
FIE =`\,2Nb
GO @;n$ caw
!Save Lens FILE > SAVE LENS AS... |n6 Q
SAV digcam20_opt
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