主要是看人家的操作步骤,想学命令的人请看，十分有用 /'Q2TLy=
File > Open (locate saved Workshop 1 lens if it is not open already, digcam20_start.len) M*7:-Tb]C
Display > View Lens (accept defaults, click OK, keep window open) Or,W2
In LDM spreadsheet, select surfaces 1 to Image ,BE4z2 a
Choose Edit > Default Variables, then click in any cell to unselect the range TI}Y U
Right click in each cell and choose Vary for GLr7sack
Thickness of surfaces 1, 4, 6 T7~Vk2o%(
Glass of surfaces 1, 4, 6 D) ;w)`
File > Save Lens m+9~f_}
Using Quick Analysis tool bar, click… C7xmk;c
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Quick Spot Diagram (note scale) 22FHD4
Quick Ray Aberration Plot (note scale) i4H,Ggb
Quick Field Plot (note scales and maximum distortion value) : C9vs
Analysis > Diffraction > MTF <_~e/+_.
Freq/Calc Tab: Maximum 68, Increment 17 %# iu
Graphics tab: Max plot freq 68 h #(J6ht
Click OK (keep window open, tear off starting MTF graph for later comparison) :FX|9h
Optimization > Automatic Design ^s_7-p])(
Output controls: Click Draw System button x f<wM]&
General constraints: Min center thickness 0.8, Min edge thickness 0.5 (others default) -SN6&-#c_
Specific constraints: +S
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Click Insert Specific Constraint vx} W.6C}
Default display is Optical Definitions, Effective Focal Length (correct choice) v] X*(e
Enter 8.25 for Constraint Target eH^ ~r{{R
Click OK. #9CLIYJAd
File > Save Lens As (new name, digcam20_opt.len) 2i)vT)~
Re-run View Lens window to see new lens picture. #8@o%%F d
Re-run each of the Quick Analysis windows and note scales. ^j]_MiA4
Re-run the MTF window, compare to tear-off of starting point xj;V
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以下直接复制到命令行即可出最终结果 MkX=34oc^
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! Command inputs for Workshop 2-2 (for reference) ndS8p]P&o(
!Restore 20 Degree Digital Camera Lens Setup Usq.'y/ o
!FILE > OPEN -T{G8@V0 I
RES digcam20_start.len ) SyU
!Vary all radii curvature by right clicking in LDM and selecting VARY
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!HINT: for curvatures highlight all and select vary. Then go back and @^Yr=d ba
!freeze stop surface radius. VCQo3k5
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CCY S1 0 ; CCY S2 0 ; CCY S4 0 ; CCY S5 0 ; CCY S6 0 ; CCY S7 0 {B[ }}wX$
!Vary all thicknesses by same method. Do not select surface with solve since ubUVxYD?
!varying this surface will delete solve. If mistake, use UNDO or go to yZkS
!LENS > SYSTEM DATA > SYSTEM SOLVES and reselect Paraxial Image Solve d;.H 9Ne
THC S1 0 ; THC S2 0 ; THC S3 0 ; THC S4 0 ; THC S5 0 ; THC S6 0 qB5.of[N!
THC S8 0 !Don't forget to vary the image distance which calculates best cV:Ak~PKl
!best real-ray focus from paraxial image plane e\r%"~v
!Vary glass by highlighting, right clicking, and selecting Vary !!d?o
GC1 S1 0 ; GC1 S4 0 ; GC1 S6 0 ^]MLEr!S
!Optimize OPTIMIZATION > AUTOMATIC DESIGN p> g[: ~
AUT -_ <z_IL\%
EFL Z1 = 8.25 !Effective Focal Length Constraint % jn)=;\
MNT 0.8 !Minimum Center Thickness General Constraint vp(ow]Q
MNE 0.5 !Minimum Edge Thickness General Constraint }56WAP}Z 4
DRA S1..I YES !Draw a picture of lens system at each cycle D|$Fw5!^k6
GO .FC|~Z1T<F
!Reanalyze the system. Make sure to "Tear Off" original analysis before |H.ARLS
!re-executing to compare optimized system tn}MKo
!Re-execute Drawing '
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VIE n50W HlMtt
GO .I.B,wH8
!Re-execute MTF uR6 `@F
MTF ~3Y4_b5E
MFR 68 {A'_5 X9
IFR 17 ?z&5g -/b
GO w|c200Is}e
!Re-execute Field (Distortion) Analysis S? #6{rx
FIE |=AaGJx
GO XIn,nCY;
!Save Lens FILE > SAVE LENS AS... oL@K{dk
SAV digcam20_opt
