主要是看人家的操作步骤,想学命令的人请看，十分有用 L *_xu _F
File > Open (locate saved Workshop 1 lens if it is not open already, digcam20_start.len) I}:/v$btM
Display > View Lens (accept defaults, click OK, keep window open) ;#+#W+0
In LDM spreadsheet, select surfaces 1 to Image MLDuo|?
Choose Edit > Default Variables, then click in any cell to unselect the range wK3}K
Right click in each cell and choose Vary for
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Thickness of surfaces 1, 4, 6 CR/LV]G
Glass of surfaces 1, 4, 6 WRgz]=W3w
File > Save Lens T&c[m!}X|t
Using Quick Analysis tool bar, click… {hl_/
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Quick Spot Diagram (note scale) r}991O <
Quick Ray Aberration Plot (note scale) ex['{| a{
Quick Field Plot (note scales and maximum distortion value) 6B 8! 2
Analysis > Diffraction > MTF 1 ID! rxE
Freq/Calc Tab: Maximum 68, Increment 17 Ii9vA ^53
Graphics tab: Max plot freq 68 ,"/_G
Click OK (keep window open, tear off starting MTF graph for later comparison) (T ^aZuuS
Optimization > Automatic Design V;z?m)ur
Output controls: Click Draw System button Ze~\=X" "
General constraints: Min center thickness 0.8, Min edge thickness 0.5 (others default) ;HC" hEc!
Specific constraints: >3OD qRu
Click Insert Specific Constraint |`|b&Rhu
Default display is Optical Definitions, Effective Focal Length (correct choice) ~5|a9HV:
Enter 8.25 for Constraint Target ":Q70*xSm
Click OK. >ko;CQR
File > Save Lens As (new name, digcam20_opt.len) eY-$h nUe
Re-run View Lens window to see new lens picture. 8'YL!moG|
Re-run each of the Quick Analysis windows and note scales. v|hi;l@7E
Re-run the MTF window, compare to tear-off of starting point <sT a Xaq?
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以下直接复制到命令行即可出最终结果 j_{gk"2:d`
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! Command inputs for Workshop 2-2 (for reference) UKzmR a,s
!Restore 20 Degree Digital Camera Lens Setup 4, :D4WYWD
!FILE > OPEN @<Y Za$`
RES digcam20_start.len oU2RxK->u
!Vary all radii curvature by right clicking in LDM and selecting VARY Ro1l:P)C`
!HINT: for curvatures highlight all and select vary. Then go back and M,9WF)p)V
!freeze stop surface radius. DQ~@= %?ni
CCY S1 0 ; CCY S2 0 ; CCY S4 0 ; CCY S5 0 ; CCY S6 0 ; CCY S7 0 A_g'9
!Vary all thicknesses by same method. Do not select surface with solve since cB<Zez
!varying this surface will delete solve. If mistake, use UNDO or go to c >^_4QQ
!LENS > SYSTEM DATA > SYSTEM SOLVES and reselect Paraxial Image Solve -H]svOX
THC S1 0 ; THC S2 0 ; THC S3 0 ; THC S4 0 ; THC S5 0 ; THC S6 0 3"B|w^6'2
THC S8 0 !Don't forget to vary the image distance which calculates best :9)> !+|'
!best real-ray focus from paraxial image plane 9KP+
!Vary glass by highlighting, right clicking, and selecting Vary E/am^ TO `
GC1 S1 0 ; GC1 S4 0 ; GC1 S6 0 P }PSS# nn
!Optimize OPTIMIZATION > AUTOMATIC DESIGN YRwS{ e*u
AUT A*$vk2VWw
EFL Z1 = 8.25 !Effective Focal Length Constraint ?GFVV ->i
MNT 0.8 !Minimum Center Thickness General Constraint o~~_ > V)W
MNE 0.5 !Minimum Edge Thickness General Constraint 4b (iGLrt0
DRA S1..I YES !Draw a picture of lens system at each cycle bkY7]'.bz&
GO {d3r>Ub)7d
!Reanalyze the system. Make sure to "Tear Off" original analysis before Z8:iaP)
!re-executing to compare optimized system h\yYg' CC
!Re-execute Drawing 5o gbse"
VIE #)\KV7f! ;
GO `W-:@?PmQx
!Re-execute MTF *zmbo >{(
MTF UH)A n:9
MFR 68 [ 6c{t
IFR 17 $1 w8GI\J
GO 63at
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!Re-execute Field (Distortion) Analysis ]-0
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FIE "=qdBG9
GO l
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!Save Lens FILE > SAVE LENS AS... D7=gUm >
SAV digcam20_opt
