主要是看人家的操作步骤,想学命令的人请看，十分有用 X $~T*l0
File > Open (locate saved Workshop 1 lens if it is not open already, digcam20_start.len) XL; WU8>
Display > View Lens (accept defaults, click OK, keep window open) -2u )orWP
In LDM spreadsheet, select surfaces 1 to Image A@Zqh<,Ud
Choose Edit > Default Variables, then click in any cell to unselect the range j,9/eZRZ
Right click in each cell and choose Vary for \J#&]o)Y
Thickness of surfaces 1, 4, 6 FI$
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Glass of surfaces 1, 4, 6 ^xScVOdP
File > Save Lens >[nR$8_J-l
Using Quick Analysis tool bar, click… F|'u0JQ)$
Quick Spot Diagram (note scale) GJU9[
Quick Ray Aberration Plot (note scale) I\M
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Quick Field Plot (note scales and maximum distortion value) De{Z Qg)
Analysis > Diffraction > MTF X f;R'a,$
Freq/Calc Tab: Maximum 68, Increment 17 @KHY8y7
Graphics tab: Max plot freq 68 :AQ9-&i/a-
Click OK (keep window open, tear off starting MTF graph for later comparison) u"wWekB
Optimization > Automatic Design 9@mvG^
Output controls: Click Draw System button o9C# 5%9
General constraints: Min center thickness 0.8, Min edge thickness 0.5 (others default) c/j+aj0.v
Specific constraints: . kkhW8:
Click Insert Specific Constraint !I&,!$
Default display is Optical Definitions, Effective Focal Length (correct choice) 9&6P,ts%Q
Enter 8.25 for Constraint Target U 9Ea }aN
Click OK. ~J#Z7y]p!j
File > Save Lens As (new name, digcam20_opt.len) V[Sj+&e&
Re-run View Lens window to see new lens picture. sX}#L
Re-run each of the Quick Analysis windows and note scales. Wi,)a{
Re-run the MTF window, compare to tear-off of starting point >lyE@S sA
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以下直接复制到命令行即可出最终结果 paMK ]-
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! Command inputs for Workshop 2-2 (for reference) B~@Gfb>`'
!Restore 20 Degree Digital Camera Lens Setup zMO#CZ t
!FILE > OPEN l,3,$
RES digcam20_start.len p*T[(\8{n
!Vary all radii curvature by right clicking in LDM and selecting VARY mb%U~Na
!HINT: for curvatures highlight all and select vary. Then go back and h qhX
!freeze stop surface radius. 9%"\s2T
CCY S1 0 ; CCY S2 0 ; CCY S4 0 ; CCY S5 0 ; CCY S6 0 ; CCY S7 0 >vYb'%02
!Vary all thicknesses by same method. Do not select surface with solve since H;q[$EUNb
!varying this surface will delete solve. If mistake, use UNDO or go to IDpx_
!LENS > SYSTEM DATA > SYSTEM SOLVES and reselect Paraxial Image Solve kkMChe} ;5
THC S1 0 ; THC S2 0 ; THC S3 0 ; THC S4 0 ; THC S5 0 ; THC S6 0 rQ2TPX<?a
THC S8 0 !Don't forget to vary the image distance which calculates best vSv1FZu*
!best real-ray focus from paraxial image plane N_Zd.VnY
!Vary glass by highlighting, right clicking, and selecting Vary vg"*%K$a
GC1 S1 0 ; GC1 S4 0 ; GC1 S6 0 =8rNOi
!Optimize OPTIMIZATION > AUTOMATIC DESIGN Tdz#,]Q
AUT k{hNv|:,
EFL Z1 = 8.25 !Effective Focal Length Constraint
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MNT 0.8 !Minimum Center Thickness General Constraint :>_oOn[ _
MNE 0.5 !Minimum Edge Thickness General Constraint jP 2#w{xq
DRA S1..I YES !Draw a picture of lens system at each cycle iTT%_-X-
GO &h!O<'*2
!Reanalyze the system. Make sure to "Tear Off" original analysis before 4%_xT o
!re-executing to compare optimized system vM$hCV ~N
!Re-execute Drawing agkKm?xIL
VIE 6R$Yh0%
GO 28c6~*Te #
!Re-execute MTF &#gh
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MTF rKT.~ZP\
MFR 68 wf\7sz
IFR 17 D:z_FNN
GO ]|=`-)AP3
!Re-execute Field (Distortion) Analysis lk R^2P
FIE XJy.xI>;
GO o61rTj
!Save Lens FILE > SAVE LENS AS... a 'n17d&
SAV digcam20_opt
