主要是看人家的操作步骤,想学命令的人请看，十分有用 9 [wR/8Xm
File > Open (locate saved Workshop 1 lens if it is not open already, digcam20_start.len) AjMx \'(C
Display > View Lens (accept defaults, click OK, keep window open) $-lP"m@}
In LDM spreadsheet, select surfaces 1 to Image K Z Q
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Choose Edit > Default Variables, then click in any cell to unselect the range ^vr`t9EE
Right click in each cell and choose Vary for 0
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Thickness of surfaces 1, 4, 6 so }Kb3 n
Glass of surfaces 1, 4, 6 vY(xH>Fd
File > Save Lens Z{
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Using Quick Analysis tool bar, click… `KJ BQ K
Quick Spot Diagram (note scale) M UqV$#4@I
Quick Ray Aberration Plot (note scale) y%xn(Bn
Quick Field Plot (note scales and maximum distortion value) < c[dpK5c
Analysis > Diffraction > MTF qJLtqv
Freq/Calc Tab: Maximum 68, Increment 17 5E}~iC&
Graphics tab: Max plot freq 68 roE* 8:Y
Click OK (keep window open, tear off starting MTF graph for later comparison) IQQWp@w#8
Optimization > Automatic Design ~U_,z)<`)c
Output controls: Click Draw System button ($ Y6hn+
General constraints: Min center thickness 0.8, Min edge thickness 0.5 (others default) ypsT : uLT
Specific constraints: /WE1afe_R
Click Insert Specific Constraint i*Ee(m]I
Default display is Optical Definitions, Effective Focal Length (correct choice) yXL]uh#b
Enter 8.25 for Constraint Target tS&rR0<OW
Click OK. jwZBWt )5
File > Save Lens As (new name, digcam20_opt.len) o;2QZ"v
Re-run View Lens window to see new lens picture. H| 1O>p&
Re-run each of the Quick Analysis windows and note scales. )gP0+W!u
Re-run the MTF window, compare to tear-off of starting point cQldBc
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以下直接复制到命令行即可出最终结果 Xhx COpO
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! Command inputs for Workshop 2-2 (for reference) 63n<4VSH
!Restore 20 Degree Digital Camera Lens Setup s6J`i&uu
!FILE > OPEN q/HwcX+[b
RES digcam20_start.len 8m;tgMFO
!Vary all radii curvature by right clicking in LDM and selecting VARY [p#
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!HINT: for curvatures highlight all and select vary. Then go back and T?'Vb
!freeze stop surface radius. }0?\H)/edP
CCY S1 0 ; CCY S2 0 ; CCY S4 0 ; CCY S5 0 ; CCY S6 0 ; CCY S7 0 CN, oH4IU
!Vary all thicknesses by same method. Do not select surface with solve since M;K%=l$NG
!varying this surface will delete solve. If mistake, use UNDO or go to {expx<+4F
!LENS > SYSTEM DATA > SYSTEM SOLVES and reselect Paraxial Image Solve
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THC S1 0 ; THC S2 0 ; THC S3 0 ; THC S4 0 ; THC S5 0 ; THC S6 0 G@Y!*ZH*f
THC S8 0 !Don't forget to vary the image distance which calculates best /htM/p R
!best real-ray focus from paraxial image plane e4/Y/:vFO
!Vary glass by highlighting, right clicking, and selecting Vary zVU{jmS
GC1 S1 0 ; GC1 S4 0 ; GC1 S6 0 jjrhl
!Optimize OPTIMIZATION > AUTOMATIC DESIGN !*@sX7H
AUT 2[qlEtvQ
EFL Z1 = 8.25 !Effective Focal Length Constraint _]# ^2S
MNT 0.8 !Minimum Center Thickness General Constraint HRxA0y=
MNE 0.5 !Minimum Edge Thickness General Constraint y q2pg8%
DRA S1..I YES !Draw a picture of lens system at each cycle ~t-!{F
GO oyeJ"E2
!Reanalyze the system. Make sure to "Tear Off" original analysis before :AM5EO
!re-executing to compare optimized system o)pso\;
!Re-execute Drawing 3.?kxac
VIE .V Cfh+*J#
GO O^,%V{]6\
!Re-execute MTF w`$ M}oX(
MTF #[C=LGi
MFR 68 _pS |b qF
IFR 17 O W|5IEC
GO F+3 }Gkn
!Re-execute Field (Distortion) Analysis _ `(WX; sK
FIE -x?I6>{
GO k6?;D_dm
!Save Lens FILE > SAVE LENS AS... Btgxzf
SAV digcam20_opt
