| 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 r8*xp\/
File > Open (locate saved Workshop 1 lens if it is not open already, digcam20_start.len) paN=I=:*M
Display > View Lens (accept defaults, click OK, keep window open) mMZrBz7r
In LDM spreadsheet, select surfaces 1 to Image <W3p!
Choose Edit > Default Variables, then click in any cell to unselect the range I+kL;Y dS
Right click in each cell and choose Vary for cf>l Y
Thickness of surfaces 1, 4, 6 2<n 18-|OQ
Glass of surfaces 1, 4, 6 "8z Me L
File > Save Lens kz Uj )
Using Quick Analysis tool bar, click… n{<@-6
Quick Spot Diagram (note scale) Cpd>xXZz&S
Quick Ray Aberration Plot (note scale) RWM~7^ JA
Quick Field Plot (note scales and maximum distortion value) ?Q=(?yR0]
Analysis > Diffraction > MTF a(O@E%|u
Freq/Calc Tab: Maximum 68, Increment 17 U,yZ.1V^:
Graphics tab: Max plot freq 68 6 mLC{X[
Click OK (keep window open, tear off starting MTF graph for later comparison) Fq+Cr?-
Optimization > Automatic Design D1>*ml
Output controls: Click Draw System button ph(LsPT-
General constraints: Min center thickness 0.8, Min edge thickness 0.5 (others default) (d NF)(wn
Specific constraints: GadY#]}(
Click Insert Specific Constraint I;_T_m4.q
Default display is Optical Definitions, Effective Focal Length (correct choice) %j1 7QD8
Enter 8.25 for Constraint Target F+R1}5-3cl
Click OK. 8,+T[S
File > Save Lens As (new name, digcam20_opt.len) d@* dbECG
Re-run View Lens window to see new lens picture. AZNo%!)o
Re-run each of the Quick Analysis windows and note scales. twldwuN
Re-run the MTF window, compare to tear-off of starting point t W
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以下直接复制到命令行即可出最终结果 sP@XV/`3L6
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! Command inputs for Workshop 2-2 (for reference) {*CG&-k2D
!Restore 20 Degree Digital Camera Lens Setup (?XIhp d
!FILE > OPEN \?e2qu/ C
RES digcam20_start.len c"`HKfL
!Vary all radii curvature by right clicking in LDM and selecting VARY qa~ju\jm.
!HINT: for curvatures highlight all and select vary. Then go back and zN +jn
!freeze stop surface radius. >yVrIko
CCY S1 0 ; CCY S2 0 ; CCY S4 0 ; CCY S5 0 ; CCY S6 0 ; CCY S7 0
E) I&? <g
!Vary all thicknesses by same method. Do not select surface with solve since [.$%ti*!
!varying this surface will delete solve. If mistake, use UNDO or go to ;*Y+. ?>a
!LENS > SYSTEM DATA > SYSTEM SOLVES and reselect Paraxial Image Solve $[cB6
THC S1 0 ; THC S2 0 ; THC S3 0 ; THC S4 0 ; THC S5 0 ; THC S6 0 <daH0l0
THC S8 0 !Don't forget to vary the image distance which calculates best H)*%e G~
!best real-ray focus from paraxial image plane ^5 "yY2}-
!Vary glass by highlighting, right clicking, and selecting Vary Oa@SyroF=
GC1 S1 0 ; GC1 S4 0 ; GC1 S6 0 >c: nr&yP
!Optimize OPTIMIZATION > AUTOMATIC DESIGN ~] W
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AUT ,T 3M
EFL Z1 = 8.25 !Effective Focal Length Constraint ,e`n2)
MNT 0.8 !Minimum Center Thickness General Constraint }\N ~%?6D
MNE 0.5 !Minimum Edge Thickness General Constraint "Gqas bX
DRA S1..I YES !Draw a picture of lens system at each cycle Z$Qwn
GO Zmk 9C@
!Reanalyze the system. Make sure to "Tear Off" original analysis before 8h} 1t4k
!re-executing to compare optimized system T|YMU?4
!Re-execute Drawing M bTmdRf
VIE ,FRa6;
GO e *D,2>o
!Re-execute MTF KV{
MTF 4.kn , s
MFR 68 Y3)*MqZlF
IFR 17 4|eI_u{_
GO +]H!q
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!Re-execute Field (Distortion) Analysis !,7)ZW? *8
FIE ( 8W ?ym
GO @v /Ae_q!
!Save Lens FILE > SAVE LENS AS... ] TZ/=I d
SAV digcam20_opt
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