| longlllooo |
2006-03-27 20:26 |
主要是看人家的操作步骤,想学命令的人请看，十分有用 AW X Bk+
File > Open (locate saved Workshop 1 lens if it is not open already, digcam20_start.len) 6oQSXB@
Display > View Lens (accept defaults, click OK, keep window open) sNF[-,a
In LDM spreadsheet, select surfaces 1 to Image 7M#irCX
Choose Edit > Default Variables, then click in any cell to unselect the range ~0^d-,ZD5
Right click in each cell and choose Vary for d=6FL" .o
Thickness of surfaces 1, 4, 6 V1 H3}
Glass of surfaces 1, 4, 6 qZcRK9l]F1
File > Save Lens +TWk}#G
Using Quick Analysis tool bar, click… g aq"+@fH
Quick Spot Diagram (note scale) +@ j@# ~=K
Quick Ray Aberration Plot (note scale) g~A~|di|
Quick Field Plot (note scales and maximum distortion value) ]{/1F:bcQ
Analysis > Diffraction > MTF qkLp8/G>pO
Freq/Calc Tab: Maximum 68, Increment 17 j~ 'a %P
Graphics tab: Max plot freq 68 T+0Z2H
Click OK (keep window open, tear off starting MTF graph for later comparison) 8d!t"oj68
Optimization > Automatic Design {zri6P+s
Output controls: Click Draw System button $U]KIHb
General constraints: Min center thickness 0.8, Min edge thickness 0.5 (others default) }3Mnq?.-
Specific constraints: VY@6!9G
Click Insert Specific Constraint cGE,3dsF[
Default display is Optical Definitions, Effective Focal Length (correct choice) {Y(# <UDM
Enter 8.25 for Constraint Target wS)2ymRg
Click OK. 9CxFj)#5F
File > Save Lens As (new name, digcam20_opt.len) whoQA}X>
Re-run View Lens window to see new lens picture. }%@q; "9`
Re-run each of the Quick Analysis windows and note scales. !97k
Re-run the MTF window, compare to tear-off of starting point k'(eQ5R3L
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以下直接复制到命令行即可出最终结果 S] O0zv^}
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! Command inputs for Workshop 2-2 (for reference) !I8m(a xW
!Restore 20 Degree Digital Camera Lens Setup 9 :ubPqt
!FILE > OPEN Q , `:RF3
RES digcam20_start.len $$ tFP"pZ
!Vary all radii curvature by right clicking in LDM and selecting VARY X >$s>})Y
!HINT: for curvatures highlight all and select vary. Then go back and G%RL 8HU
!freeze stop surface radius. }+F&=-P)
CCY S1 0 ; CCY S2 0 ; CCY S4 0 ; CCY S5 0 ; CCY S6 0 ; CCY S7 0 /4!.G#DLQ
!Vary all thicknesses by same method. Do not select surface with solve since qpCNvhi
!varying this surface will delete solve. If mistake, use UNDO or go to WkF60'Hf
!LENS > SYSTEM DATA > SYSTEM SOLVES and reselect Paraxial Image Solve JSAbh\Mq6
THC S1 0 ; THC S2 0 ; THC S3 0 ; THC S4 0 ; THC S5 0 ; THC S6 0 c u~\&3 R
THC S8 0 !Don't forget to vary the image distance which calculates best bh ~"LQS1
!best real-ray focus from paraxial image plane )yj:P
!Vary glass by highlighting, right clicking, and selecting Vary ]nM 2J}7
GC1 S1 0 ; GC1 S4 0 ; GC1 S6 0 zBKfaQI,
!Optimize OPTIMIZATION > AUTOMATIC DESIGN &>T 7]])
AUT v "K #
EFL Z1 = 8.25 !Effective Focal Length Constraint .C=I~Z
MNT 0.8 !Minimum Center Thickness General Constraint .Z0$KQ'iy
MNE 0.5 !Minimum Edge Thickness General Constraint h,(f3Ik0O
DRA S1..I YES !Draw a picture of lens system at each cycle 9 bxBm
GO O
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!Reanalyze the system. Make sure to "Tear Off" original analysis before TB@0j
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!re-executing to compare optimized system d h~ cj5
!Re-execute Drawing G)S (a4
VIE WC pCWtmy
GO u |EECjJn
!Re-execute MTF =rB=! ;
MTF Hx|<NS0}_
MFR 68 I/&uiC{l@
IFR 17 A;'*>NS
GO 9! kH:Az[p
!Re-execute Field (Distortion) Analysis 2l YA % n
FIE
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GO O 7x'q<PFU
!Save Lens FILE > SAVE LENS AS... 7F;dLd'
SAV digcam20_opt
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