主要是看人家的操作步骤,想学命令的人请看，十分有用 k/#M<z
File > Open (locate saved Workshop 1 lens if it is not open already, digcam20_start.len) ]bfqcmh<
Display > View Lens (accept defaults, click OK, keep window open) e{t=>vry
In LDM spreadsheet, select surfaces 1 to Image 8IWw jyRr
Choose Edit > Default Variables, then click in any cell to unselect the range * -z4 <LAa
Right click in each cell and choose Vary for IxP^i{/1?
Thickness of surfaces 1, 4, 6 b7'F| h^
Glass of surfaces 1, 4, 6 5^F]tRz-
File > Save Lens ~PYFYjHC
Using Quick Analysis tool bar, click… STlPT5e.}
Quick Spot Diagram (note scale) 4$i} Xk# 3
Quick Ray Aberration Plot (note scale) 5Bd(>'ig_
Quick Field Plot (note scales and maximum distortion value) 7)PJ:4IqS
Analysis > Diffraction > MTF *tG11gR,&
Freq/Calc Tab: Maximum 68, Increment 17 J 9a $AU*
Graphics tab: Max plot freq 68 /| f[u s-w
Click OK (keep window open, tear off starting MTF graph for later comparison) Doj(.wm~
Optimization > Automatic Design P !>g7X
Output controls: Click Draw System button T&4fBMBp,%
General constraints: Min center thickness 0.8, Min edge thickness 0.5 (others default) IozNjII$:.
Specific constraints: Cgo XZX
Click Insert Specific Constraint w -dI<s
Default display is Optical Definitions, Effective Focal Length (correct choice) /hfUPO5
Enter 8.25 for Constraint Target _FF v#R*4
Click OK. pE(sV{PD
File > Save Lens As (new name, digcam20_opt.len) -R74/GBg
Re-run View Lens window to see new lens picture. C M^r|4 K
Re-run each of the Quick Analysis windows and note scales. y^YVo^3
Re-run the MTF window, compare to tear-off of starting point p |s2G~0<
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以下直接复制到命令行即可出最终结果 Cg*kN"8q
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! Command inputs for Workshop 2-2 (for reference) Cn/q=
!Restore 20 Degree Digital Camera Lens Setup h {H]xe[Q
!FILE > OPEN i]@c.Q iFN
RES digcam20_start.len bQpoXs0w;
!Vary all radii curvature by right clicking in LDM and selecting VARY 4%> +Wh[
!HINT: for curvatures highlight all and select vary. Then go back and P |v ?
!freeze stop surface radius. 'rh\CA/}D
CCY S1 0 ; CCY S2 0 ; CCY S4 0 ; CCY S5 0 ; CCY S6 0 ; CCY S7 0 ;3
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!Vary all thicknesses by same method. Do not select surface with solve since dL(4 mR8
!varying this surface will delete solve. If mistake, use UNDO or go to g6`.qyVfz'
!LENS > SYSTEM DATA > SYSTEM SOLVES and reselect Paraxial Image Solve K_FBy
THC S1 0 ; THC S2 0 ; THC S3 0 ; THC S4 0 ; THC S5 0 ; THC S6 0 `{WCrw6)
THC S8 0 !Don't forget to vary the image distance which calculates best -rRz@Cr
!best real-ray focus from paraxial image plane acy"ct*I
!Vary glass by highlighting, right clicking, and selecting Vary X J
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GC1 S1 0 ; GC1 S4 0 ; GC1 S6 0 ^W k0*.wg
!Optimize OPTIMIZATION > AUTOMATIC DESIGN 0*{@E%9
AUT U l9b.`6
EFL Z1 = 8.25 !Effective Focal Length Constraint ]ci RiMkT(
MNT 0.8 !Minimum Center Thickness General Constraint }R\B.2#M_@
MNE 0.5 !Minimum Edge Thickness General Constraint ~"\P~cg0J
DRA S1..I YES !Draw a picture of lens system at each cycle ]svw
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GO Hj1k-Bs&'w
!Reanalyze the system. Make sure to "Tear Off" original analysis before ~(M*6b
!re-executing to compare optimized system 78gob&p ?
!Re-execute Drawing BHIM'24bp
VIE )biX8yq hR
GO P0Aas)!
!Re-execute MTF '2j~WUEmg
MTF cUYX1a)8
MFR 68 z^"?sd
IFR 17 Km%8Yw0 +
GO ayN*fiV]
!Re-execute Field (Distortion) Analysis vDWr|M%``l
FIE )~G8 L Z
GO nWd:>Ur
!Save Lens FILE > SAVE LENS AS... x vHOY :
SAV digcam20_opt
