主要是看人家的操作步骤,想学命令的人请看，十分有用 Fdr*xHx$P
File > Open (locate saved Workshop 1 lens if it is not open already, digcam20_start.len) ),M U+ *`
Display > View Lens (accept defaults, click OK, keep window open) i'Wcf1I-=
In LDM spreadsheet, select surfaces 1 to Image ~ t"n%SgY
Choose Edit > Default Variables, then click in any cell to unselect the range \4/:^T}*
Right click in each cell and choose Vary for p8$\uo 9YQ
Thickness of surfaces 1, 4, 6 8F\~Wz 7K
Glass of surfaces 1, 4, 6 y~x#pC*w
File > Save Lens Oe/73|
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Using Quick Analysis tool bar, click… ruzMag)
Quick Spot Diagram (note scale) fJvr+4i4k
Quick Ray Aberration Plot (note scale) J-b~4
Quick Field Plot (note scales and maximum distortion value) Kq8 (d`g}
Analysis > Diffraction > MTF Y' 2-yB
Freq/Calc Tab: Maximum 68, Increment 17
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Graphics tab: Max plot freq 68 KUlB2Fqi
Click OK (keep window open, tear off starting MTF graph for later comparison) j/~VP2 R`
Optimization > Automatic Design N/(ofy
Output controls: Click Draw System button A\Lr<{Jh
General constraints: Min center thickness 0.8, Min edge thickness 0.5 (others default) y9=t; qH@|
Specific constraints: AL(n *,
Click Insert Specific Constraint >).@Nb;e
Default display is Optical Definitions, Effective Focal Length (correct choice) ZUv
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Enter 8.25 for Constraint Target gHp'3SnS
Click OK. /L)?> tg
File > Save Lens As (new name, digcam20_opt.len) B,r5kQI4
Re-run View Lens window to see new lens picture. $xLEA \s
Re-run each of the Quick Analysis windows and note scales. M\9 at\$
Re-run the MTF window, compare to tear-off of starting point &qNP?>C!=
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以下直接复制到命令行即可出最终结果 CM`x>J
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! Command inputs for Workshop 2-2 (for reference) +[>y O _}
!Restore 20 Degree Digital Camera Lens Setup *Ro8W-+
!FILE > OPEN Z@<q/2).|
RES digcam20_start.len u![ 4=w
!Vary all radii curvature by right clicking in LDM and selecting VARY 6{cybD`Ef&
!HINT: for curvatures highlight all and select vary. Then go back and d]^\w'w$
!freeze stop surface radius. @=0 2
CCY S1 0 ; CCY S2 0 ; CCY S4 0 ; CCY S5 0 ; CCY S6 0 ; CCY S7 0 <u r KIu
!Vary all thicknesses by same method. Do not select surface with solve since >oVc5}
!varying this surface will delete solve. If mistake, use UNDO or go to >|v=Ba6R0
!LENS > SYSTEM DATA > SYSTEM SOLVES and reselect Paraxial Image Solve l0eANB%Y=@
THC S1 0 ; THC S2 0 ; THC S3 0 ; THC S4 0 ; THC S5 0 ; THC S6 0 jB*9 !xrd,
THC S8 0 !Don't forget to vary the image distance which calculates best bMSD /L
!best real-ray focus from paraxial image plane xAR ^
!Vary glass by highlighting, right clicking, and selecting Vary L BW. *PHW
GC1 S1 0 ; GC1 S4 0 ; GC1 S6 0 E6,`Ld;c[
!Optimize OPTIMIZATION > AUTOMATIC DESIGN [6Uud i w
AUT '=KuJ0`nE9
EFL Z1 = 8.25 !Effective Focal Length Constraint EG'7}W
MNT 0.8 !Minimum Center Thickness General Constraint 6 lB{Ao?|
MNE 0.5 !Minimum Edge Thickness General Constraint R1]v}f _I"
DRA S1..I YES !Draw a picture of lens system at each cycle z 4 4
GO \DG(
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!Reanalyze the system. Make sure to "Tear Off" original analysis before [{hL F9yPx
!re-executing to compare optimized system cRs{=RGc
!Re-execute Drawing ^h Q:A4@q
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GO 6 |B a
!Re-execute MTF e k Y?
MTF g_3rEvf"4
MFR 68 Ws2prh^e(
IFR 17 BZ]&uD|f
GO !Ei Ze.K
!Re-execute Field (Distortion) Analysis m] +X }|
FIE `XQx$I
GO \ #h})`
!Save Lens FILE > SAVE LENS AS... 31
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SAV digcam20_opt
