主要是看人家的操作步骤,想学命令的人请看,十分有用 _^Lg}@t
File > Open (locate saved Workshop 1 lens if it is not open already, digcam20_start.len) SO}en[()O
Display > View Lens (accept defaults, click OK, keep window open) OJ4-p&1
In LDM spreadsheet, select surfaces 1 to Image c[E>2P2-_
Choose Edit > Default Variables, then click in any cell to unselect the range P(XNtQ= K
Right click in each cell and choose Vary for ^
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Thickness of surfaces 1, 4, 6 R WK##VHK
Glass of surfaces 1, 4, 6 VkDFR
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File > Save Lens ^`Qh*:T$
Using Quick Analysis tool bar, click… liG3
Quick Spot Diagram (note scale) a&~]77)
Quick Ray Aberration Plot (note scale) <B=!ZC=n
Quick Field Plot (note scales and maximum distortion value) -Drm4sTpDb
Analysis > Diffraction > MTF +H8;*uZ|k,
Freq/Calc Tab: Maximum 68, Increment 17 `Ef&h V
Graphics tab: Max plot freq 68 Mb[4G>-v=
Click OK (keep window open, tear off starting MTF graph for later comparison) ICI8xP}a?
Optimization > Automatic Design lITZ|u
Output controls: Click Draw System button $[-{Mm
General constraints: Min center thickness 0.8, Min edge thickness 0.5 (others default) p!w}hB598
Specific constraints: +6v;(] y
Click Insert Specific Constraint Y'S9
Default display is Optical Definitions, Effective Focal Length (correct choice) l5d>
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Enter 8.25 for Constraint Target 2\1\Jn#q
Click OK. QWWoj[d#
File > Save Lens As (new name, digcam20_opt.len) ?G>#'T[
Re-run View Lens window to see new lens picture. 4uUR2J
Re-run each of the Quick Analysis windows and note scales. qnZ`]?
Re-run the MTF window, compare to tear-off of starting point gDJ@s
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以下直接复制到命令行即可出最终结果 Q`X5W
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! Command inputs for Workshop 2-2 (for reference) tHo0q<.oX
!Restore 20 Degree Digital Camera Lens Setup NW9k.D%
!FILE > OPEN `<>8tZS9"
RES digcam20_start.len FZ^byIS[
!Vary all radii curvature by right clicking in LDM and selecting VARY !P!|U/|c
!HINT: for curvatures highlight all and select vary. Then go back and Tj{!Fx^H
!freeze stop surface radius. =P+S]<O
CCY S1 0 ; CCY S2 0 ; CCY S4 0 ; CCY S5 0 ; CCY S6 0 ; CCY S7 0 w
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!Vary all thicknesses by same method. Do not select surface with solve since ++13m*fA
!varying this surface will delete solve. If mistake, use UNDO or go to }#
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!LENS > SYSTEM DATA > SYSTEM SOLVES and reselect Paraxial Image Solve b['TRYc=:
THC S1 0 ; THC S2 0 ; THC S3 0 ; THC S4 0 ; THC S5 0 ; THC S6 0 *0R=(Gy
THC S8 0 !Don't forget to vary the image distance which calculates best ^aZ Wu|p
!best real-ray focus from paraxial image plane ^U_B>0`ch
!Vary glass by highlighting, right clicking, and selecting Vary 5hp b=2
GC1 S1 0 ; GC1 S4 0 ; GC1 S6 0 U<r<$K
!Optimize OPTIMIZATION > AUTOMATIC DESIGN ryx<^q
AUT F
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EFL Z1 = 8.25 !Effective Focal Length Constraint _ }!Q4K
MNT 0.8 !Minimum Center Thickness General Constraint zoOm[X=?3
MNE 0.5 !Minimum Edge Thickness General Constraint vfegIoZ
DRA S1..I YES !Draw a picture of lens system at each cycle 7Hpsmfm
GO xsFW F*HPs
!Reanalyze the system. Make sure to "Tear Off" original analysis before 'EREut,>'
!re-executing to compare optimized system 4:<0i0)5
!Re-execute Drawing hBE}?J>
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GO |<ke>j/6n
!Re-execute MTF eS@RA2
MTF {djOU
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MFR 68 ^@)/VfVg
IFR 17 =WEfo;
GO BJj~fNm1Zr
!Re-execute Field (Distortion) Analysis /,0t,"&Aqa
FIE \hM6 ykY-
GO jd2Fh):q
!Save Lens FILE > SAVE LENS AS... V6$v@Zq
SAV digcam20_opt