主要是看人家的操作步骤,想学命令的人请看，十分有用 rT;l#<#VE
File > Open (locate saved Workshop 1 lens if it is not open already, digcam20_start.len) 3`S H-"{j%
Display > View Lens (accept defaults, click OK, keep window open) {-7ovH?
In LDM spreadsheet, select surfaces 1 to Image !p\
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Choose Edit > Default Variables, then click in any cell to unselect the range aDz%
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Right click in each cell and choose Vary for |QbCFihn
Thickness of surfaces 1, 4, 6 S`mB1(h
Glass of surfaces 1, 4, 6 R$}Hv
File > Save Lens )N^fSenFBn
Using Quick Analysis tool bar, click… [8tpU &J
Quick Spot Diagram (note scale) RjP]8tH&
Quick Ray Aberration Plot (note scale) 7 ?k3jDK
Quick Field Plot (note scales and maximum distortion value) U<XfO'XJ
Analysis > Diffraction > MTF B (71I;
Freq/Calc Tab: Maximum 68, Increment 17 D?Ol)aj?
Graphics tab: Max plot freq 68 VrT-6r'Y
Click OK (keep window open, tear off starting MTF graph for later comparison) E 8W*^^z(
Optimization > Automatic Design {7IZN< e
Output controls: Click Draw System button w H=7pS"s
General constraints: Min center thickness 0.8, Min edge thickness 0.5 (others default) _z]v;Q
Specific constraints: ?^-fivzS>
Click Insert Specific Constraint .u7grC C
Default display is Optical Definitions, Effective Focal Length (correct choice) /;q 3Q#
Enter 8.25 for Constraint Target Gl{2"!mt=
Click OK. *}HDq (/>w
File > Save Lens As (new name, digcam20_opt.len) `3K."/N6c
Re-run View Lens window to see new lens picture. 9P
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Re-run each of the Quick Analysis windows and note scales. 'd QGb-<_<
Re-run the MTF window, compare to tear-off of starting point yoq-H+<
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以下直接复制到命令行即可出最终结果 8EiS\$O-
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! Command inputs for Workshop 2-2 (for reference) 56C'<#
!Restore 20 Degree Digital Camera Lens Setup s &W E'
!FILE > OPEN x` wUi*G
RES digcam20_start.len OL#i !ia.
!Vary all radii curvature by right clicking in LDM and selecting VARY 6eB ~S)Ko
!HINT: for curvatures highlight all and select vary. Then go back and o"N\l{ #s
!freeze stop surface radius. 3,#qt}8`
CCY S1 0 ; CCY S2 0 ; CCY S4 0 ; CCY S5 0 ; CCY S6 0 ; CCY S7 0 YyYp-0#
!Vary all thicknesses by same method. Do not select surface with solve since
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!varying this surface will delete solve. If mistake, use UNDO or go to )99^58my
!LENS > SYSTEM DATA > SYSTEM SOLVES and reselect Paraxial Image Solve <dS I"C<
THC S1 0 ; THC S2 0 ; THC S3 0 ; THC S4 0 ; THC S5 0 ; THC S6 0 )!zg= }V
THC S8 0 !Don't forget to vary the image distance which calculates best 4ee- tKH
!best real-ray focus from paraxial image plane -yIx:*KI
!Vary glass by highlighting, right clicking, and selecting Vary : =quCz G
GC1 S1 0 ; GC1 S4 0 ; GC1 S6 0 E 7SmiD@)
!Optimize OPTIMIZATION > AUTOMATIC DESIGN SZxnYVY
AUT NS x-~)
EFL Z1 = 8.25 !Effective Focal Length Constraint vl s+E o]
MNT 0.8 !Minimum Center Thickness General Constraint !Y M:?%B
MNE 0.5 !Minimum Edge Thickness General Constraint 2B6y1" B
DRA S1..I YES !Draw a picture of lens system at each cycle gz:US 77
GO X"f]
!Reanalyze the system. Make sure to "Tear Off" original analysis before r5lPO*?Df
!re-executing to compare optimized system (LVzE_`
!Re-execute Drawing X*)DpbWd
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GO \H PB{
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!Re-execute MTF ~WmA55
MTF (G>g0(;D-
MFR 68 loyhNT=
IFR 17 gazX2P[D
GO O+DYh=m*p
!Re-execute Field (Distortion) Analysis /5>A 2y
FIE VB+_ kR6Zv
GO i|!R*"
!Save Lens FILE > SAVE LENS AS... (f"LD8MJ/
SAV digcam20_opt
