主要是看人家的操作步骤,想学命令的人请看，十分有用 R{hX--|j
File > Open (locate saved Workshop 1 lens if it is not open already, digcam20_start.len) )fH
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Display > View Lens (accept defaults, click OK, keep window open) ZTC>Ufu2!
In LDM spreadsheet, select surfaces 1 to Image kH!Z|P s?R
Choose Edit > Default Variables, then click in any cell to unselect the range Er~ 17$b
Right click in each cell and choose Vary for >&L|oq7$
Thickness of surfaces 1, 4, 6 D{|q P
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Glass of surfaces 1, 4, 6 C2LPLquD+
File > Save Lens O9gq <d
Using Quick Analysis tool bar, click… BT{;^ Hp
Quick Spot Diagram (note scale) ]5W$EvZ9)
Quick Ray Aberration Plot (note scale) E(qYCafC
Quick Field Plot (note scales and maximum distortion value) LyUn!zV$(
Analysis > Diffraction > MTF myx/ |-V"F
Freq/Calc Tab: Maximum 68, Increment 17 t@RYJmW
Graphics tab: Max plot freq 68 1CtUf7 `/Q
Click OK (keep window open, tear off starting MTF graph for later comparison) [^>XR BSm
Optimization > Automatic Design c=\tf~}^Ms
Output controls: Click Draw System button ^ Fk;t
General constraints: Min center thickness 0.8, Min edge thickness 0.5 (others default) [ X*p
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Specific constraints: 6*8W tq
Click Insert Specific Constraint LvG.ocCG
Default display is Optical Definitions, Effective Focal Length (correct choice) <Ij!x`MS+
Enter 8.25 for Constraint Target S"Al [{
Click OK. D6SUzI1+H
File > Save Lens As (new name, digcam20_opt.len) ?z
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Re-run View Lens window to see new lens picture. &|SWy
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Re-run each of the Quick Analysis windows and note scales. uL'f8Pqg
Re-run the MTF window, compare to tear-off of starting point h!"2Ux3!x
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以下直接复制到命令行即可出最终结果 9rB3h`AVF
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! Command inputs for Workshop 2-2 (for reference) [|\6AIoS
!Restore 20 Degree Digital Camera Lens Setup mrGV{ {.
!FILE > OPEN ,(jJOFf
RES digcam20_start.len /iW+<@Mas
!Vary all radii curvature by right clicking in LDM and selecting VARY J?4{#p
!HINT: for curvatures highlight all and select vary. Then go back and vz^ ] g
!freeze stop surface radius. e8a^"Z `a
CCY S1 0 ; CCY S2 0 ; CCY S4 0 ; CCY S5 0 ; CCY S6 0 ; CCY S7 0 T+8Yd(:hX
!Vary all thicknesses by same method. Do not select surface with solve since 'Kelq$dn#
!varying this surface will delete solve. If mistake, use UNDO or go to za l]t$z>
!LENS > SYSTEM DATA > SYSTEM SOLVES and reselect Paraxial Image Solve #h!+b
THC S1 0 ; THC S2 0 ; THC S3 0 ; THC S4 0 ; THC S5 0 ; THC S6 0 D{9a'0J
THC S8 0 !Don't forget to vary the image distance which calculates best {9IRW\kn
!best real-ray focus from paraxial image plane kuY^o,u-1e
!Vary glass by highlighting, right clicking, and selecting Vary $C16 }^
GC1 S1 0 ; GC1 S4 0 ; GC1 S6 0 g` EZLDjt
!Optimize OPTIMIZATION > AUTOMATIC DESIGN 1=VyD<dNG6
AUT QE]@xLz
EFL Z1 = 8.25 !Effective Focal Length Constraint LUbhTc
MNT 0.8 !Minimum Center Thickness General Constraint 3 ML][|TR
MNE 0.5 !Minimum Edge Thickness General Constraint eSPS3|YYn
DRA S1..I YES !Draw a picture of lens system at each cycle vrn4yHoZ
GO SA, ~q&
!Reanalyze the system. Make sure to "Tear Off" original analysis before '2,~ 'Zk
!re-executing to compare optimized system ulR yt^bx|
!Re-execute Drawing UlXm4\@
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GO ;_sJ>.=\
!Re-execute MTF 7o4E_ .*
MTF 7uBx
MFR 68 YSjc=
IFR 17 KdNo'*;U]_
GO "2e3 <:$
!Re-execute Field (Distortion) Analysis H4i}gdR
FIE Km2~ nkQ
GO 2OG/0cP
!Save Lens FILE > SAVE LENS AS... pEB3 qGA
SAV digcam20_opt
