| 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 d*@T30
File > Open (locate saved Workshop 1 lens if it is not open already, digcam20_start.len) (bsx |8[
Display > View Lens (accept defaults, click OK, keep window open) jm}CrqU
In LDM spreadsheet, select surfaces 1 to Image ;8s L
Choose Edit > Default Variables, then click in any cell to unselect the range
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Right click in each cell and choose Vary for NJUKH1lIhR
Thickness of surfaces 1, 4, 6 8<=^Rkz
Glass of surfaces 1, 4, 6 a>wCBkD
File > Save Lens 5 ~Wg=u<6
Using Quick Analysis tool bar, click… smP4KC"I(d
Quick Spot Diagram (note scale) <LHhs <M'
Quick Ray Aberration Plot (note scale) x/* lNG/
Quick Field Plot (note scales and maximum distortion value) 5S~ H[>A"
Analysis > Diffraction > MTF #[+# bw_6
Freq/Calc Tab: Maximum 68, Increment 17 3_(_yEKx
Graphics tab: Max plot freq 68 g6GkA.!X$
Click OK (keep window open, tear off starting MTF graph for later comparison) @N=vmtLP
Optimization > Automatic Design HK;NR .D
Output controls: Click Draw System button L5&M@YTH
General constraints: Min center thickness 0.8, Min edge thickness 0.5 (others default) 9]4Q@%
Specific constraints: kp m;ohd
Click Insert Specific Constraint YvR bM
Default display is Optical Definitions, Effective Focal Length (correct choice) ]G/m,Zv*:
Enter 8.25 for Constraint Target C/kf?:j
Click OK. osW"wh_
File > Save Lens As (new name, digcam20_opt.len) [9m3@Yd'
Re-run View Lens window to see new lens picture. {v ?Q9
Re-run each of the Quick Analysis windows and note scales. m'o dVZ7
Re-run the MTF window, compare to tear-off of starting point Pfd1[~,
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以下直接复制到命令行即可出最终结果 vsY ?q8+P
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! Command inputs for Workshop 2-2 (for reference) '7iz5wC#
!Restore 20 Degree Digital Camera Lens Setup @DN /]P
!FILE > OPEN "+HJ/8Dd1
RES digcam20_start.len 0SQ!lr
!Vary all radii curvature by right clicking in LDM and selecting VARY h4Crq Yxa_
!HINT: for curvatures highlight all and select vary. Then go back and &f*o rM:
!freeze stop surface radius. honh 'j
CCY S1 0 ; CCY S2 0 ; CCY S4 0 ; CCY S5 0 ; CCY S6 0 ; CCY S7 0 ,06Sm]4L,
!Vary all thicknesses by same method. Do not select surface with solve since R9J!}az'
!varying this surface will delete solve. If mistake, use UNDO or go to nm^HL|
!LENS > SYSTEM DATA > SYSTEM SOLVES and reselect Paraxial Image Solve !/FRL<mp
THC S1 0 ; THC S2 0 ; THC S3 0 ; THC S4 0 ; THC S5 0 ; THC S6 0 #: K=zV\
THC S8 0 !Don't forget to vary the image distance which calculates best k Dmm
!best real-ray focus from paraxial image plane 6= iHw 24
!Vary glass by highlighting, right clicking, and selecting Vary ]aX@(3G1s
GC1 S1 0 ; GC1 S4 0 ; GC1 S6 0 N /4E
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!Optimize OPTIMIZATION > AUTOMATIC DESIGN m1$tf
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AUT (s};MdXIz
EFL Z1 = 8.25 !Effective Focal Length Constraint 1`cH
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MNT 0.8 !Minimum Center Thickness General Constraint |RX#5Q>z
MNE 0.5 !Minimum Edge Thickness General Constraint K-RmB4WI
DRA S1..I YES !Draw a picture of lens system at each cycle oC0ndp~+&
GO dlu*s(O"
!Reanalyze the system. Make sure to "Tear Off" original analysis before 0TU 3
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!re-executing to compare optimized system HsY5wC
!Re-execute Drawing waMF~#PJlt
VIE K<S3gb?0
GO rH@Rh}#yp
!Re-execute MTF !eX0Q 2
MTF Q\Ek U.[I
MFR 68 e3I""D{)[=
IFR 17 a6{Zp{"Y
GO 9+ 'i(q
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!Re-execute Field (Distortion) Analysis *+M#D^qo
FIE c (Q@5@1y:
GO <WXVUEea
!Save Lens FILE > SAVE LENS AS... # QNN;&L]R
SAV digcam20_opt
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