| longlllooo |
2006-03-27 20:24 |
主要是看人家的操作步骤,想学命令的人请看，十分有用 u8T@W} FX
File > Open (locate saved Workshop 1 lens if it is not open already, digcam20_start.len) XHekz 6_
Display > View Lens (accept defaults, click OK, keep window open) kN.;;HFq#
In LDM spreadsheet, select surfaces 1 to Image )O" E#%
Choose Edit > Default Variables, then click in any cell to unselect the range kL%ot<rt)w
Right click in each cell and choose Vary for 9Q=VRH:
Thickness of surfaces 1, 4, 6 ss[` *89
Glass of surfaces 1, 4, 6 ?OLd
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File > Save Lens `0\Z*^ >
Using Quick Analysis tool bar, click… +9w[/n ^,G
Quick Spot Diagram (note scale) JD#x+~pb,8
Quick Ray Aberration Plot (note scale) iP0m1
Quick Field Plot (note scales and maximum distortion value) >*RU:X
Analysis > Diffraction > MTF K_;vqi^1^&
Freq/Calc Tab: Maximum 68, Increment 17 HD^#"
Graphics tab: Max plot freq 68 U xL*I[z5
Click OK (keep window open, tear off starting MTF graph for later comparison) H}$7c`;q
Optimization > Automatic Design /QY F|%7!
Output controls: Click Draw System button }3^m>i*8
General constraints: Min center thickness 0.8, Min edge thickness 0.5 (others default) I )rO|
Specific constraints: 4T31<wk
Click Insert Specific Constraint l::q
F 0
Default display is Optical Definitions, Effective Focal Length (correct choice) 3Do0?~n
Enter 8.25 for Constraint Target F%h3?"s
Click OK. Jqj!k*=/
File > Save Lens As (new name, digcam20_opt.len) f^FFn32u
Re-run View Lens window to see new lens picture. A#.
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Re-run each of the Quick Analysis windows and note scales. q7X#LY k
Re-run the MTF window, compare to tear-off of starting point ?qNU*d
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以下直接复制到命令行即可出最终结果 rZKfb}A NQ
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! Command inputs for Workshop 2-2 (for reference) jc&k-d>=G
!Restore 20 Degree Digital Camera Lens Setup Y~AjcqS
!FILE > OPEN %rylmio W>
RES digcam20_start.len SXk.7bMV6
!Vary all radii curvature by right clicking in LDM and selecting VARY j|t= %*
!HINT: for curvatures highlight all and select vary. Then go back and qD{1X 25O
!freeze stop surface radius. Ipk;N q
CCY S1 0 ; CCY S2 0 ; CCY S4 0 ; CCY S5 0 ; CCY S6 0 ; CCY S7 0 HU'Mi8xxy
!Vary all thicknesses by same method. Do not select surface with solve since f' ?/P~[
!varying this surface will delete solve. If mistake, use UNDO or go to R9U{r.AA
!LENS > SYSTEM DATA > SYSTEM SOLVES and reselect Paraxial Image Solve ,X.[37
THC S1 0 ; THC S2 0 ; THC S3 0 ; THC S4 0 ; THC S5 0 ; THC S6 0 8M99cx*K
THC S8 0 !Don't forget to vary the image distance which calculates best WO_Uc_R
!best real-ray focus from paraxial image plane *4}_2"[
!Vary glass by highlighting, right clicking, and selecting Vary B?! L~J@p
GC1 S1 0 ; GC1 S4 0 ; GC1 S6 0 U?UU] >Q
!Optimize OPTIMIZATION > AUTOMATIC DESIGN Wef%f] u
AUT J!2Z9<q5
EFL Z1 = 8.25 !Effective Focal Length Constraint $fmTa02q>
MNT 0.8 !Minimum Center Thickness General Constraint r{;NGQYs
MNE 0.5 !Minimum Edge Thickness General Constraint P.y +jyu
DRA S1..I YES !Draw a picture of lens system at each cycle L,}' ST
GO ib=)N)l
!Reanalyze the system. Make sure to "Tear Off" original analysis before w:t~M[kTW
!re-executing to compare optimized system XwY,xg&o
!Re-execute Drawing G-d7}Uz ?
VIE !Y ,7 %
GO wXIR n?z
!Re-execute MTF $G".PWc
MTF { ADd[V
MFR 68 {DRk{>K,
IFR 17 #*o0n>O
GO Zw]"p63eMa
!Re-execute Field (Distortion) Analysis }bb,Iib
FIE # L*\ ^ c
GO \ %Mcvb.?
!Save Lens FILE > SAVE LENS AS... dua F?\vv
SAV digcam20_opt
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