主要是看人家的操作步骤,想学命令的人请看，十分有用 D(cD8fn,J
File > Open (locate saved Workshop 1 lens if it is not open already, digcam20_start.len) $0* sj XV
Display > View Lens (accept defaults, click OK, keep window open)
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In LDM spreadsheet, select surfaces 1 to Image Jcw^ Z,
Choose Edit > Default Variables, then click in any cell to unselect the range eg mUUuO
Right click in each cell and choose Vary for W5j wD
Thickness of surfaces 1, 4, 6 YMGy-]!o
Glass of surfaces 1, 4, 6 Q+CJd>B
File > Save Lens G T>'|~e
Using Quick Analysis tool bar, click… wG3 L+[,
Quick Spot Diagram (note scale) E4# { &sRT
Quick Ray Aberration Plot (note scale) aRd~T6I
Quick Field Plot (note scales and maximum distortion value) bC&A@.g{
Analysis > Diffraction > MTF b[%@3 }E
Freq/Calc Tab: Maximum 68, Increment 17 s|YH_1r
Graphics tab: Max plot freq 68 qLR;:$]Q&8
Click OK (keep window open, tear off starting MTF graph for later comparison) ^`H'LD
Optimization > Automatic Design wl=tN{R
Output controls: Click Draw System button ]aN9mT
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General constraints: Min center thickness 0.8, Min edge thickness 0.5 (others default) ]&' !0'3`
Specific constraints: :@w~*eK ~
Click Insert Specific Constraint f5}afPk
Default display is Optical Definitions, Effective Focal Length (correct choice) z zG =!JR
Enter 8.25 for Constraint Target #83
Click OK. &9jJ\+:7
File > Save Lens As (new name, digcam20_opt.len) w GH ft`Z
Re-run View Lens window to see new lens picture. o)Q4+njT@
Re-run each of the Quick Analysis windows and note scales. 2"0VXtv6
Re-run the MTF window, compare to tear-off of starting point 2OG/0cP
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以下直接复制到命令行即可出最终结果 tpI/I bq
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! Command inputs for Workshop 2-2 (for reference) b"g^Jm! j
!Restore 20 Degree Digital Camera Lens Setup 0%xk tf
!FILE > OPEN V[ UOl J
RES digcam20_start.len 3 s\UU2yr
!Vary all radii curvature by right clicking in LDM and selecting VARY %p7
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!HINT: for curvatures highlight all and select vary. Then go back and mR}8} K]L
!freeze stop surface radius. ,>| t Q'
CCY S1 0 ; CCY S2 0 ; CCY S4 0 ; CCY S5 0 ; CCY S6 0 ; CCY S7 0 1q}32^>+o
!Vary all thicknesses by same method. Do not select surface with solve since a[ ULSYEi
!varying this surface will delete solve. If mistake, use UNDO or go to R P{pEd
!LENS > SYSTEM DATA > SYSTEM SOLVES and reselect Paraxial Image Solve QPy h.9:N
THC S1 0 ; THC S2 0 ; THC S3 0 ; THC S4 0 ; THC S5 0 ; THC S6 0 E2hsSqsu=
THC S8 0 !Don't forget to vary the image distance which calculates best vbJ<|#|r-
!best real-ray focus from paraxial image plane a-5UG#o
!Vary glass by highlighting, right clicking, and selecting Vary eI-fH
GC1 S1 0 ; GC1 S4 0 ; GC1 S6 0 zJ`u>:*$
!Optimize OPTIMIZATION > AUTOMATIC DESIGN Uo3
AUT ueg%yvO
EFL Z1 = 8.25 !Effective Focal Length Constraint l@L k+-[D
MNT 0.8 !Minimum Center Thickness General Constraint l,n_G/\
MNE 0.5 !Minimum Edge Thickness General Constraint /cS8@ )e4
DRA S1..I YES !Draw a picture of lens system at each cycle ]H`wE_2tu
GO t/i*.>7
!Reanalyze the system. Make sure to "Tear Off" original analysis before St; 9&A
!re-executing to compare optimized system /X8a3Eqp9
!Re-execute Drawing 1I;q@g0
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GO AA-$;s
!Re-execute MTF 4'faE="1)S
MTF %
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MFR 68 h(WlJCln
IFR 17 e`Yj}i*bx]
GO 8Y SvBy
!Re-execute Field (Distortion) Analysis qMaO1cE\
FIE ,|f=2t+5X
GO 5a |[cR
!Save Lens FILE > SAVE LENS AS... k(f),_
SAV digcam20_opt
