主要是看人家的操作步骤,想学命令的人请看，十分有用 gfPR3%EXs
File > Open (locate saved Workshop 1 lens if it is not open already, digcam20_start.len) i(9 5=t(
Display > View Lens (accept defaults, click OK, keep window open) \LEU reTn
In LDM spreadsheet, select surfaces 1 to Image GN=ugP 9
Choose Edit > Default Variables, then click in any cell to unselect the range xG7/[ jG
Right click in each cell and choose Vary for _U<r @
Thickness of surfaces 1, 4, 6
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Glass of surfaces 1, 4, 6 wk@S+Q
File > Save Lens phc9esz
Using Quick Analysis tool bar, click… lx H3a :gm
Quick Spot Diagram (note scale) .@k jC4m
Quick Ray Aberration Plot (note scale) " <=HmE-;
Quick Field Plot (note scales and maximum distortion value) tD j/!L`
Analysis > Diffraction > MTF !zW22M
Freq/Calc Tab: Maximum 68, Increment 17 Vx#n0z
Graphics tab: Max plot freq 68 VUQx"R9-
Click OK (keep window open, tear off starting MTF graph for later comparison) X$0&tmum
Optimization > Automatic Design #Ave r]eK
Output controls: Click Draw System button EyK
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General constraints: Min center thickness 0.8, Min edge thickness 0.5 (others default) VJoobu1h
Specific constraints: t/KH`
Click Insert Specific Constraint OH_ m ZA
Default display is Optical Definitions, Effective Focal Length (correct choice) 1Y6DzWI
Enter 8.25 for Constraint Target mE)I(< %
Click OK. j96 \({;k
File > Save Lens As (new name, digcam20_opt.len) #*zl;h1(
Re-run View Lens window to see new lens picture. M/L C:,
Re-run each of the Quick Analysis windows and note scales. P: QSr8K
Re-run the MTF window, compare to tear-off of starting point SKdh !*G
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以下直接复制到命令行即可出最终结果 Xf/ qUao
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! Command inputs for Workshop 2-2 (for reference) lm bC2\GT
!Restore 20 Degree Digital Camera Lens Setup ( kFg2kG
!FILE > OPEN |qq7vx
RES digcam20_start.len iAn]hVW
!Vary all radii curvature by right clicking in LDM and selecting VARY n%&+yg
!HINT: for curvatures highlight all and select vary. Then go back and >J['so2Bf
!freeze stop surface radius. ]N4?*S*jd)
CCY S1 0 ; CCY S2 0 ; CCY S4 0 ; CCY S5 0 ; CCY S6 0 ; CCY S7 0 wyC1M
!Vary all thicknesses by same method. Do not select surface with solve since }}q_QD_
!varying this surface will delete solve. If mistake, use UNDO or go to S uo
!LENS > SYSTEM DATA > SYSTEM SOLVES and reselect Paraxial Image Solve i!7|YAu
THC S1 0 ; THC S2 0 ; THC S3 0 ; THC S4 0 ; THC S5 0 ; THC S6 0 YacLYo#
THC S8 0 !Don't forget to vary the image distance which calculates best "b
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!best real-ray focus from paraxial image plane AD0pmD
!Vary glass by highlighting, right clicking, and selecting Vary ~^ ^|]s3
GC1 S1 0 ; GC1 S4 0 ; GC1 S6 0 M\L^ Wf9
!Optimize OPTIMIZATION > AUTOMATIC DESIGN zv>7;En3
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EFL Z1 = 8.25 !Effective Focal Length Constraint gu|cQ2xV
MNT 0.8 !Minimum Center Thickness General Constraint 6_a~
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MNE 0.5 !Minimum Edge Thickness General Constraint --BS/ L-
DRA S1..I YES !Draw a picture of lens system at each cycle ^E}};CsT
GO <
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!Reanalyze the system. Make sure to "Tear Off" original analysis before }Q#3\z5
!re-executing to compare optimized system h$U(1B
!Re-execute Drawing 3?Tk[m1b
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GO Jd-u ?
!Re-execute MTF X0&[cyP!
MTF P; DGs]PF
MFR 68
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IFR 17 3{ FUFx
GO :J~sz)n4
!Re-execute Field (Distortion) Analysis >[&Zs3>
FIE 4PDxmH]y
GO o^*k
!Save Lens FILE > SAVE LENS AS... d7i 0'R
SAV digcam20_opt
