主要是看人家的操作步骤,想学命令的人请看，十分有用 9SXp Z*S x
File > Open (locate saved Workshop 1 lens if it is not open already, digcam20_start.len) {01^x n .
Display > View Lens (accept defaults, click OK, keep window open) #j'7\SV
In LDM spreadsheet, select surfaces 1 to Image Kx02 2rgDU
Choose Edit > Default Variables, then click in any cell to unselect the range }Z)YK}_1
Right click in each cell and choose Vary for e[6Me[b
Thickness of surfaces 1, 4, 6 Z-3("%_$/
Glass of surfaces 1, 4, 6 `NfwW:
File > Save Lens 39A|6> -?
Using Quick Analysis tool bar, click… +I +RNXR/{
Quick Spot Diagram (note scale) 0{/'[o7
Quick Ray Aberration Plot (note scale) q"Sja!-;|
Quick Field Plot (note scales and maximum distortion value) ]e$n ;tuW
Analysis > Diffraction > MTF a:KL{e[
Freq/Calc Tab: Maximum 68, Increment 17 9M-W 1prb
Graphics tab: Max plot freq 68 -Gjz+cRns
Click OK (keep window open, tear off starting MTF graph for later comparison) I#;.; %u
Optimization > Automatic Design 5?.!A
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Output controls: Click Draw System button J;ycA F ~
General constraints: Min center thickness 0.8, Min edge thickness 0.5 (others default) %4})_h?j
Specific constraints: M zF,is
Click Insert Specific Constraint =.l>Uw!
Default display is Optical Definitions, Effective Focal Length (correct choice) ra8AUj~RX
Enter 8.25 for Constraint Target *Ag3qnY
Click OK. lo-VfKvy
File > Save Lens As (new name, digcam20_opt.len) mR$ 0Ij/v
Re-run View Lens window to see new lens picture. zXk^u gFy
Re-run each of the Quick Analysis windows and note scales. 8 %p+:6kP5
Re-run the MTF window, compare to tear-off of starting point jOZ>^5}
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以下直接复制到命令行即可出最终结果 t ?05
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! Command inputs for Workshop 2-2 (for reference) 2OjU3z<J
!Restore 20 Degree Digital Camera Lens Setup iLN O}EUL
!FILE > OPEN bI8')a
RES digcam20_start.len _o&NbD H
!Vary all radii curvature by right clicking in LDM and selecting VARY 0^)~p{Zh
!HINT: for curvatures highlight all and select vary. Then go back and t"OP*
!freeze stop surface radius. _ Td#C1g3
CCY S1 0 ; CCY S2 0 ; CCY S4 0 ; CCY S5 0 ; CCY S6 0 ; CCY S7 0 AC!yc(^<
!Vary all thicknesses by same method. Do not select surface with solve since \eAV: qV
!varying this surface will delete solve. If mistake, use UNDO or go to h@J3+ u<
!LENS > SYSTEM DATA > SYSTEM SOLVES and reselect Paraxial Image Solve n8JM
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THC S1 0 ; THC S2 0 ; THC S3 0 ; THC S4 0 ; THC S5 0 ; THC S6 0 ilZQ/hOBH
THC S8 0 !Don't forget to vary the image distance which calculates best &UO/p/a
!best real-ray focus from paraxial image plane aGAr24]y
!Vary glass by highlighting, right clicking, and selecting Vary >h.HW
GC1 S1 0 ; GC1 S4 0 ; GC1 S6 0 5g.K yj|
!Optimize OPTIMIZATION > AUTOMATIC DESIGN -j1]H"-
AUT UzW]kY[A<
EFL Z1 = 8.25 !Effective Focal Length Constraint qRz /$|.
MNT 0.8 !Minimum Center Thickness General Constraint A\v53AT
MNE 0.5 !Minimum Edge Thickness General Constraint olKM0K
DRA S1..I YES !Draw a picture of lens system at each cycle w-C%,1F,/
GO PEaZ3{-
!Reanalyze the system. Make sure to "Tear Off" original analysis before OzR<jCOS
!re-executing to compare optimized system 2*]
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!Re-execute Drawing mQ9shdvt-
VIE P 6({wx
GO 6PC ?*^v
!Re-execute MTF d.
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MTF "p+JME(
MFR 68 o_5[}d
IFR 17 = J]M#6N0
GO y
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!Re-execute Field (Distortion) Analysis M.bkFuh
FIE jv6>7@<G
GO -9Ygn_ M
!Save Lens FILE > SAVE LENS AS... TX7dwmt) N
SAV digcam20_opt
