主要是看人家的操作步骤,想学命令的人请看，十分有用 9mm(?O~'p
File > Open (locate saved Workshop 1 lens if it is not open already, digcam20_start.len) %W+ F e, ]
Display > View Lens (accept defaults, click OK, keep window open) R kM! BcB
In LDM spreadsheet, select surfaces 1 to Image tsD^8~
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Choose Edit > Default Variables, then click in any cell to unselect the range |SleSgS<#
Right click in each cell and choose Vary for xx8na8
Thickness of surfaces 1, 4, 6 EUqG"h5#A{
Glass of surfaces 1, 4, 6 ]^ <~[QK_C
File > Save Lens >AJ|F)
Using Quick Analysis tool bar, click… _Ohq'ZgXm
Quick Spot Diagram (note scale) jyr#e
Quick Ray Aberration Plot (note scale) RdHR[Usm
Quick Field Plot (note scales and maximum distortion value) RJD3o_("K
Analysis > Diffraction > MTF 2B;QS\e"
Freq/Calc Tab: Maximum 68, Increment 17 89bKnsV
Graphics tab: Max plot freq 68 \eCd G x?
Click OK (keep window open, tear off starting MTF graph for later comparison) QeoDq
Optimization > Automatic Design m6D4J=59
Output controls: Click Draw System button *Y~64FM
General constraints: Min center thickness 0.8, Min edge thickness 0.5 (others default) 9~yuyv4$
Specific constraints: dPId=
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Click Insert Specific Constraint 8b!_b2Za
Default display is Optical Definitions, Effective Focal Length (correct choice) L8Q!6oO=<
Enter 8.25 for Constraint Target 5JXLfYTU I
Click OK. 7 j8_O@_
File > Save Lens As (new name, digcam20_opt.len) =UY@,*q:c
Re-run View Lens window to see new lens picture. D.?gV_
Re-run each of the Quick Analysis windows and note scales. .M lE1n'
Re-run the MTF window, compare to tear-off of starting point S y~ 1U
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以下直接复制到命令行即可出最终结果 {'%=tJ[YX
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! Command inputs for Workshop 2-2 (for reference) \BW(c)Q
!Restore 20 Degree Digital Camera Lens Setup D5x^O2
!FILE > OPEN g:yK/1@Hk}
RES digcam20_start.len z?xd\x
!Vary all radii curvature by right clicking in LDM and selecting VARY ;f
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!HINT: for curvatures highlight all and select vary. Then go back and 0'uj*Y{L
!freeze stop surface radius. F ceT'
CCY S1 0 ; CCY S2 0 ; CCY S4 0 ; CCY S5 0 ; CCY S6 0 ; CCY S7 0 &0ra a
!Vary all thicknesses by same method. Do not select surface with solve since ,U}8(D~:
!varying this surface will delete solve. If mistake, use UNDO or go to C'ZU .Y
!LENS > SYSTEM DATA > SYSTEM SOLVES and reselect Paraxial Image Solve }- Sr@bE
THC S1 0 ; THC S2 0 ; THC S3 0 ; THC S4 0 ; THC S5 0 ; THC S6 0 Nsq%b?#
THC S8 0 !Don't forget to vary the image distance which calculates best x&
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!best real-ray focus from paraxial image plane n^K]R}S
!Vary glass by highlighting, right clicking, and selecting Vary d<o
GC1 S1 0 ; GC1 S4 0 ; GC1 S6 0 _ sd?l
!Optimize OPTIMIZATION > AUTOMATIC DESIGN rGs> {-T3
AUT }O/Nn0,
EFL Z1 = 8.25 !Effective Focal Length Constraint #~b9H05D
MNT 0.8 !Minimum Center Thickness General Constraint ) =[Tgh
MNE 0.5 !Minimum Edge Thickness General Constraint ~$B ,K]
DRA S1..I YES !Draw a picture of lens system at each cycle ryN-d%t?
GO UWHC]V?
!Reanalyze the system. Make sure to "Tear Off" original analysis before ^^m%[$nw&r
!re-executing to compare optimized system $1e@3mzM
!Re-execute Drawing 6x 0>E^~
VIE j^gF~ Wz^
GO _~!,x.Dbp
!Re-execute MTF 8'y|cF%U
MTF : .<&Y=^
MFR 68 &N EzKf
IFR 17 S`::f(e
GO )lbF'.i
!Re-execute Field (Distortion) Analysis ee0J;pP2#
FIE ]#nAld1cmy
GO -}%zus5
!Save Lens FILE > SAVE LENS AS... w Z^/-
SAV digcam20_opt
