主要是看人家的操作步骤,想学命令的人请看，十分有用 G,Y ctv
File > Open (locate saved Workshop 1 lens if it is not open already, digcam20_start.len) (?uK
Display > View Lens (accept defaults, click OK, keep window open) SK/}bZ;f
In LDM spreadsheet, select surfaces 1 to Image cuG;1,?b
Choose Edit > Default Variables, then click in any cell to unselect the range sX>|Y3S\U
Right click in each cell and choose Vary for 8Dx g6>
Thickness of surfaces 1, 4, 6 <MO 40MP
Glass of surfaces 1, 4, 6 OmK0-fa/
File > Save Lens *a_QuEw _k
Using Quick Analysis tool bar, click… 6,CK1j+tZ
Quick Spot Diagram (note scale) 3- d"-'k
Quick Ray Aberration Plot (note scale)
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Quick Field Plot (note scales and maximum distortion value) p8F$vx4,
Analysis > Diffraction > MTF v(sS$2J|}
Freq/Calc Tab: Maximum 68, Increment 17 # 6?2 2Os
Graphics tab: Max plot freq 68 N/ 0Q`cQ-
Click OK (keep window open, tear off starting MTF graph for later comparison) #Sg/
Optimization > Automatic Design YP"%z6N@v
Output controls: Click Draw System button &, XP MT
General constraints: Min center thickness 0.8, Min edge thickness 0.5 (others default) uY3$nlhP6
Specific constraints: DVs$3RL
Click Insert Specific Constraint hI<$lEB
Default display is Optical Definitions, Effective Focal Length (correct choice) ;F, 6]LH!
Enter 8.25 for Constraint Target $1 Z3yb^
Click OK. )086u8w )y
File > Save Lens As (new name, digcam20_opt.len) bDw\;bnG
Re-run View Lens window to see new lens picture. [sPLu)q2
Re-run each of the Quick Analysis windows and note scales. \q-["W34
Re-run the MTF window, compare to tear-off of starting point + C`vO5 \0
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以下直接复制到命令行即可出最终结果 _c fAJ)8=
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! Command inputs for Workshop 2-2 (for reference) aQ 6T2bQ
!Restore 20 Degree Digital Camera Lens Setup /o M&29 jy
!FILE > OPEN 8p~[8}
RES digcam20_start.len |])Ko08*tE
!Vary all radii curvature by right clicking in LDM and selecting VARY G
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!HINT: for curvatures highlight all and select vary. Then go back and OnW,R3eg
!freeze stop surface radius. +(q
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CCY S1 0 ; CCY S2 0 ; CCY S4 0 ; CCY S5 0 ; CCY S6 0 ; CCY S7 0 /KJWo0zo
!Vary all thicknesses by same method. Do not select surface with solve since [S`F m>,
!varying this surface will delete solve. If mistake, use UNDO or go to -cXVk H{
!LENS > SYSTEM DATA > SYSTEM SOLVES and reselect Paraxial Image Solve Tkf4`Gxd
THC S1 0 ; THC S2 0 ; THC S3 0 ; THC S4 0 ; THC S5 0 ; THC S6 0 =8qhK=&]
THC S8 0 !Don't forget to vary the image distance which calculates best ]=0D~3o3
!best real-ray focus from paraxial image plane X.)1>zk
!Vary glass by highlighting, right clicking, and selecting Vary =)6|lz^
GC1 S1 0 ; GC1 S4 0 ; GC1 S6 0 97 !VH> MX
!Optimize OPTIMIZATION > AUTOMATIC DESIGN uUG &At
AUT
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EFL Z1 = 8.25 !Effective Focal Length Constraint n lvDMZ
MNT 0.8 !Minimum Center Thickness General Constraint ~Oj-W6-+&,
MNE 0.5 !Minimum Edge Thickness General Constraint *UG=dl#F#
DRA S1..I YES !Draw a picture of lens system at each cycle f7]C1!]
GO ;}4e+`fF|
!Reanalyze the system. Make sure to "Tear Off" original analysis before $J:~jY/J
!re-executing to compare optimized system l>>, ~
!Re-execute Drawing b WZ X
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GO }5;3c %
!Re-execute MTF ;%i.@@:IQ
MTF kmL~H1qd
MFR 68 fNi_C"<
IFR 17 Uefw
GO &_c 5C
!Re-execute Field (Distortion) Analysis k{$Mlt?&-
FIE ?jBh=X\]:
GO ; 6zp,t0
!Save Lens FILE > SAVE LENS AS... 9_S>G$9D
SAV digcam20_opt
