主要是看人家的操作步骤,想学命令的人请看，十分有用 { \r{$<s
File > Open (locate saved Workshop 1 lens if it is not open already, digcam20_start.len) /_ _we[$E
Display > View Lens (accept defaults, click OK, keep window open) k\1q Jr
In LDM spreadsheet, select surfaces 1 to Image A1Rt
Choose Edit > Default Variables, then click in any cell to unselect the range TzerAX^
Right click in each cell and choose Vary for \
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Thickness of surfaces 1, 4, 6 mu|#(u
Glass of surfaces 1, 4, 6 (<2PhJ|
File > Save Lens wnha c}
Using Quick Analysis tool bar, click… G^j/8 e
Quick Spot Diagram (note scale) "-(yZigQ
Quick Ray Aberration Plot (note scale) Qv jsI;CQ-
Quick Field Plot (note scales and maximum distortion value) Rq9v+Xq2
Analysis > Diffraction > MTF P\N$TYeH
Freq/Calc Tab: Maximum 68, Increment 17 k}Ahvlq)
Graphics tab: Max plot freq 68 H4Pj 3'
Click OK (keep window open, tear off starting MTF graph for later comparison) F8>Fp"
Optimization > Automatic Design Nn4< :2
Output controls: Click Draw System button }.MJVB3
General constraints: Min center thickness 0.8, Min edge thickness 0.5 (others default) 3*XX@>|o
Specific constraints: }-YD_Pm
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Click Insert Specific Constraint B%cjRwO T
Default display is Optical Definitions, Effective Focal Length (correct choice) 4 vGkgH<,
Enter 8.25 for Constraint Target IP/
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Click OK. DX 4uTD
File > Save Lens As (new name, digcam20_opt.len) |"vqM)V$
Re-run View Lens window to see new lens picture. M|6
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Re-run each of the Quick Analysis windows and note scales. bU(t5
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Re-run the MTF window, compare to tear-off of starting point <~vamim#K
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以下直接复制到命令行即可出最终结果 cYmMO[4YG'
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! Command inputs for Workshop 2-2 (for reference) ;40!2P8 t
!Restore 20 Degree Digital Camera Lens Setup RY&Wvkjh
!FILE > OPEN ~z%K9YcyU
RES digcam20_start.len 7*~
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!Vary all radii curvature by right clicking in LDM and selecting VARY TV0(uMZ0+'
!HINT: for curvatures highlight all and select vary. Then go back and mEr* n
!freeze stop surface radius. L :%;
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CCY S1 0 ; CCY S2 0 ; CCY S4 0 ; CCY S5 0 ; CCY S6 0 ; CCY S7 0 ,/ly|Dv
!Vary all thicknesses by same method. Do not select surface with solve since D=o9+5Slw
!varying this surface will delete solve. If mistake, use UNDO or go to 4 Z1- RS
!LENS > SYSTEM DATA > SYSTEM SOLVES and reselect Paraxial Image Solve a]BnHLx
THC S1 0 ; THC S2 0 ; THC S3 0 ; THC S4 0 ; THC S5 0 ; THC S6 0 gO1`zP!9Z
THC S8 0 !Don't forget to vary the image distance which calculates best j*rra
!best real-ray focus from paraxial image plane Tg )Fr)
!Vary glass by highlighting, right clicking, and selecting Vary 4(|x@: wxm
GC1 S1 0 ; GC1 S4 0 ; GC1 S6 0 TY5<hPU=
!Optimize OPTIMIZATION > AUTOMATIC DESIGN %}x/ fq
AUT wQlK[F]!>
EFL Z1 = 8.25 !Effective Focal Length Constraint 7V%}U5
MNT 0.8 !Minimum Center Thickness General Constraint w*u HB;?
MNE 0.5 !Minimum Edge Thickness General Constraint [ %
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DRA S1..I YES !Draw a picture of lens system at each cycle 6rF[eb
GO >A7),6
!Reanalyze the system. Make sure to "Tear Off" original analysis before 9{^:+r
!re-executing to compare optimized system (zCas}YAKI
!Re-execute Drawing W5<1 @
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GO &d[&8V5S
!Re-execute MTF J`Q#p %W
MTF blk ~r0.2
MFR 68 5E+l5M* (
IFR 17 L'`W5B@
GO xT #j-T
!Re-execute Field (Distortion) Analysis B=JeZMn
FIE kG:uXbUI'
GO d_-{ -@
!Save Lens FILE > SAVE LENS AS... ?9i
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SAV digcam20_opt
