主要是看人家的操作步骤,想学命令的人请看，十分有用 ^u1Nb o
File > Open (locate saved Workshop 1 lens if it is not open already, digcam20_start.len) I,HtW ),
Display > View Lens (accept defaults, click OK, keep window open) FQ`1c[M@
In LDM spreadsheet, select surfaces 1 to Image B3u/
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Choose Edit > Default Variables, then click in any cell to unselect the range ;Bj&9DZd
Right click in each cell and choose Vary for X( rXRP#
Thickness of surfaces 1, 4, 6 9=}[~V n
Glass of surfaces 1, 4, 6 uOy/c 8`
File > Save Lens <t*<SdAq>`
Using Quick Analysis tool bar, click… Cc,V ]
Quick Spot Diagram (note scale) ^;.u }W
Quick Ray Aberration Plot (note scale) ,J-|.ER->
Quick Field Plot (note scales and maximum distortion value) j3T)gFP
Analysis > Diffraction > MTF ,4 _H{+M
Freq/Calc Tab: Maximum 68, Increment 17 kv, !"<
Graphics tab: Max plot freq 68 4
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Click OK (keep window open, tear off starting MTF graph for later comparison) w/rJj*
Optimization > Automatic Design $Bl51Vj N
Output controls: Click Draw System button S<*IoZ?T
General constraints: Min center thickness 0.8, Min edge thickness 0.5 (others default) ;aX?K/
Specific constraints: r]D U
Click Insert Specific Constraint ZH8 w^}
Default display is Optical Definitions, Effective Focal Length (correct choice) #s15AyKz5
Enter 8.25 for Constraint Target Xw< ;)m
Click OK. )b>misb/
File > Save Lens As (new name, digcam20_opt.len) e84%Y8,0
Re-run View Lens window to see new lens picture. dv3u<X M~
Re-run each of the Quick Analysis windows and note scales. sP eTW*HeR
Re-run the MTF window, compare to tear-off of starting point Dm8fc D
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以下直接复制到命令行即可出最终结果 DI2e%`$
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! Command inputs for Workshop 2-2 (for reference) &GJVFr~z
!Restore 20 Degree Digital Camera Lens Setup JMo r[*
!FILE > OPEN c$L1aZo
RES digcam20_start.len GEh( pJ
!Vary all radii curvature by right clicking in LDM and selecting VARY Z f<T`'_d
!HINT: for curvatures highlight all and select vary. Then go back and b7I0R; Zj
!freeze stop surface radius. |9IOZ>H9
CCY S1 0 ; CCY S2 0 ; CCY S4 0 ; CCY S5 0 ; CCY S6 0 ; CCY S7 0 3oH/34jj
!Vary all thicknesses by same method. Do not select surface with solve since qQG? k~r
!varying this surface will delete solve. If mistake, use UNDO or go to SJMbYjn0J
!LENS > SYSTEM DATA > SYSTEM SOLVES and reselect Paraxial Image Solve B@i%B+qCLv
THC S1 0 ; THC S2 0 ; THC S3 0 ; THC S4 0 ; THC S5 0 ; THC S6 0 5;p|iT
THC S8 0 !Don't forget to vary the image distance which calculates best |3!)
!best real-ray focus from paraxial image plane lqJ92vi6Q
!Vary glass by highlighting, right clicking, and selecting Vary t&q~ya/C
GC1 S1 0 ; GC1 S4 0 ; GC1 S6 0 oVn&L*H
!Optimize OPTIMIZATION > AUTOMATIC DESIGN PsXCpyY!s
AUT ~ +Pe=~a[
EFL Z1 = 8.25 !Effective Focal Length Constraint |Rkw/5
MNT 0.8 !Minimum Center Thickness General Constraint q Tdwi?j_
MNE 0.5 !Minimum Edge Thickness General Constraint *.k*JsU~B
DRA S1..I YES !Draw a picture of lens system at each cycle U4K ZPk
GO 0zSz[;A
!Reanalyze the system. Make sure to "Tear Off" original analysis before \gP MYMd
!re-executing to compare optimized system U.P1KRY|=
!Re-execute Drawing ;R#R dUFH
VIE V,d\Wk k/
GO {j]cL !Od
!Re-execute MTF JW^ ${4
MTF JJ_ Z{
MFR 68 w?|qKO
IFR 17 6Z J-oT!.
GO M."/"hV`-
!Re-execute Field (Distortion) Analysis d4\JM 65
FIE )lS 04|s
GO &,jUaC5I
!Save Lens FILE > SAVE LENS AS... &;P\e
SAV digcam20_opt
