主要是看人家的操作步骤,想学命令的人请看，十分有用 H<$pHyxU
File > Open (locate saved Workshop 1 lens if it is not open already, digcam20_start.len) ~};]k }
Display > View Lens (accept defaults, click OK, keep window open) 5`{=`
In LDM spreadsheet, select surfaces 1 to Image K[*h+YO
Choose Edit > Default Variables, then click in any cell to unselect the range b'&L BT7
Right click in each cell and choose Vary for iQu^|,tHEM
Thickness of surfaces 1, 4, 6 fj cr<&{:
Glass of surfaces 1, 4, 6 g %ZdIKj!
File > Save Lens b$dBV}0 L
Using Quick Analysis tool bar, click… "oHp.$+K
Quick Spot Diagram (note scale) /9P^{ OZ;y
Quick Ray Aberration Plot (note scale) ::v;)VdX+*
Quick Field Plot (note scales and maximum distortion value) b/z'`?[
Analysis > Diffraction > MTF U7jhV,gO4
Freq/Calc Tab: Maximum 68, Increment 17
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Graphics tab: Max plot freq 68 )ni"qv~J
Click OK (keep window open, tear off starting MTF graph for later comparison) o1Ne +J t
Optimization > Automatic Design PL9<*.U"=
Output controls: Click Draw System button Wa (W&]
General constraints: Min center thickness 0.8, Min edge thickness 0.5 (others default) KuIkul9^%
Specific constraints: [?A&xqO3
Click Insert Specific Constraint $|rCrak;
Default display is Optical Definitions, Effective Focal Length (correct choice) =n)JJS 94
Enter 8.25 for Constraint Target L^6"' #
Click OK. NS
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File > Save Lens As (new name, digcam20_opt.len) P`7ojXy
Re-run View Lens window to see new lens picture. uFz/PDOZ@
Re-run each of the Quick Analysis windows and note scales.
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Re-run the MTF window, compare to tear-off of starting point :s U!PF[<
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以下直接复制到命令行即可出最终结果 ;& RUE
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! Command inputs for Workshop 2-2 (for reference) o1
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!Restore 20 Degree Digital Camera Lens Setup b*cW<vX}~
!FILE > OPEN lB=( 8.
RES digcam20_start.len KrJ 5"1=
!Vary all radii curvature by right clicking in LDM and selecting VARY |Uc <;> l
!HINT: for curvatures highlight all and select vary. Then go back and \)FeuLGL9
!freeze stop surface radius. t-'I`I
CCY S1 0 ; CCY S2 0 ; CCY S4 0 ; CCY S5 0 ; CCY S6 0 ; CCY S7 0 ]^Sd9ba
!Vary all thicknesses by same method. Do not select surface with solve since rH[5~U
!varying this surface will delete solve. If mistake, use UNDO or go to u9esdOv
!LENS > SYSTEM DATA > SYSTEM SOLVES and reselect Paraxial Image Solve $Vo/CZW7
THC S1 0 ; THC S2 0 ; THC S3 0 ; THC S4 0 ; THC S5 0 ; THC S6 0 Lc58l V=
THC S8 0 !Don't forget to vary the image distance which calculates best lt }r}HM+
!best real-ray focus from paraxial image plane < 9=zP/Q
!Vary glass by highlighting, right clicking, and selecting Vary z`c%?_E K
GC1 S1 0 ; GC1 S4 0 ; GC1 S6 0 k}- "0>
!Optimize OPTIMIZATION > AUTOMATIC DESIGN W/b"a? wE{
AUT " ]aQ Hh]f
EFL Z1 = 8.25 !Effective Focal Length Constraint N<p5p0
MNT 0.8 !Minimum Center Thickness General Constraint X7t 5b7
MNE 0.5 !Minimum Edge Thickness General Constraint xylpiSJ
DRA S1..I YES !Draw a picture of lens system at each cycle rd XCWK$E
GO @<hF .4,]
!Reanalyze the system. Make sure to "Tear Off" original analysis before ) ~ l\
!re-executing to compare optimized system d-9uv|SJ
!Re-execute Drawing KDux$V4
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GO b\ kN_
!Re-execute MTF e V"d v*R
MTF =6.8bZT\
MFR 68 b{ Z^)u2X
IFR 17 xR\D(FLV S
GO
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!Re-execute Field (Distortion) Analysis "9c.C I
FIE }@3Ud '
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GO h`z2!F4
!Save Lens FILE > SAVE LENS AS... H+S~ bzz
SAV digcam20_opt
