主要是看人家的操作步骤,想学命令的人请看，十分有用 ;7B2~zL
File > Open (locate saved Workshop 1 lens if it is not open already, digcam20_start.len) \=
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Display > View Lens (accept defaults, click OK, keep window open) ZlwcwoPib
In LDM spreadsheet, select surfaces 1 to Image h7Shl<f
Choose Edit > Default Variables, then click in any cell to unselect the range GN}9$:
Right click in each cell and choose Vary for 7%~VOB
Thickness of surfaces 1, 4, 6 n0
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Glass of surfaces 1, 4, 6 Q&:92f\y
File > Save Lens ORFr7a'K
Using Quick Analysis tool bar, click… Q_UCF'f;}
Quick Spot Diagram (note scale) l7=$4As/hI
Quick Ray Aberration Plot (note scale) O sHkAI
Quick Field Plot (note scales and maximum distortion value) u0(hVK`":
Analysis > Diffraction > MTF {HE.mHy
Freq/Calc Tab: Maximum 68, Increment 17 T-<> )N5y
Graphics tab: Max plot freq 68 [57V 8%
Click OK (keep window open, tear off starting MTF graph for later comparison) g&5pfrC [
Optimization > Automatic Design : .UX[!^
Output controls: Click Draw System button o} bj!h]N
General constraints: Min center thickness 0.8, Min edge thickness 0.5 (others default) &?uzJx~
Specific constraints: ? 45K%;.9Q
Click Insert Specific Constraint -jklH/gF\%
Default display is Optical Definitions, Effective Focal Length (correct choice) 2={K-s20
Enter 8.25 for Constraint Target v/4X[6(
Click OK. L?/M2zc9Y
File > Save Lens As (new name, digcam20_opt.len) %te'J G<
Re-run View Lens window to see new lens picture. $6]x,Ct
Re-run each of the Quick Analysis windows and note scales. k[^}ld[
Re-run the MTF window, compare to tear-off of starting point yx`r;|ds}
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以下直接复制到命令行即可出最终结果 h P6fTZ=Ln
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! Command inputs for Workshop 2-2 (for reference) `G:qtHn"Q<
!Restore 20 Degree Digital Camera Lens Setup $`+~QR!h
!FILE > OPEN Td=] tVM
RES digcam20_start.len ]pucv!
!Vary all radii curvature by right clicking in LDM and selecting VARY GoZJDE3
!HINT: for curvatures highlight all and select vary. Then go back and ES2d9/]p-
!freeze stop surface radius. o*5e14W(:
CCY S1 0 ; CCY S2 0 ; CCY S4 0 ; CCY S5 0 ; CCY S6 0 ; CCY S7 0 h<z/LL8|
!Vary all thicknesses by same method. Do not select surface with solve since p-i]l.mT5
!varying this surface will delete solve. If mistake, use UNDO or go to Lqf#,J
!LENS > SYSTEM DATA > SYSTEM SOLVES and reselect Paraxial Image Solve ^ZViQ$a"h;
THC S1 0 ; THC S2 0 ; THC S3 0 ; THC S4 0 ; THC S5 0 ; THC S6 0 nk?xNe4
THC S8 0 !Don't forget to vary the image distance which calculates best N]P*6sf-6
!best real-ray focus from paraxial image plane =kZwB*7
!Vary glass by highlighting, right clicking, and selecting Vary @'G ( k;
GC1 S1 0 ; GC1 S4 0 ; GC1 S6 0 75BOiX
!Optimize OPTIMIZATION > AUTOMATIC DESIGN +T8XX@#
AUT 13NS*% ~7[
EFL Z1 = 8.25 !Effective Focal Length Constraint [.yx2@W
MNT 0.8 !Minimum Center Thickness General Constraint ";!1(xZr
MNE 0.5 !Minimum Edge Thickness General Constraint p% YvP
DRA S1..I YES !Draw a picture of lens system at each cycle ,"lBS?
GO 3dzqV aV
!Reanalyze the system. Make sure to "Tear Off" original analysis before 5eZg+ O
!re-executing to compare optimized system 2%No>w}/2
!Re-execute Drawing n4 6PQm%p
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GO Z ysUz
!Re-execute MTF )LS+M _
MTF T_|fb)G+{
MFR 68 oqU#I~ -
IFR 17 <` VJU2
GO 9 .w3VF_C
!Re-execute Field (Distortion) Analysis
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FIE bD^ob.c.A
GO GlkAJe]
!Save Lens FILE > SAVE LENS AS... 9#$V1( }?
SAV digcam20_opt
