主要是看人家的操作步骤,想学命令的人请看，十分有用 g?,\bmH E
File > Open (locate saved Workshop 1 lens if it is not open already, digcam20_start.len) tU2 8l.
Display > View Lens (accept defaults, click OK, keep window open) =0,:w(Sb!
In LDM spreadsheet, select surfaces 1 to Image ] ?!#*<t r
Choose Edit > Default Variables, then click in any cell to unselect the range qcau(#I9.
Right click in each cell and choose Vary for ut8v&i1?
Thickness of surfaces 1, 4, 6 &NbhQY`k
Glass of surfaces 1, 4, 6
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File > Save Lens -xg$qvK
Using Quick Analysis tool bar, click… Db"jzMW.
Quick Spot Diagram (note scale) ,l-tLc
Quick Ray Aberration Plot (note scale) AD_RU_a9
Quick Field Plot (note scales and maximum distortion value) ? <b>2j
Analysis > Diffraction > MTF ;T1OXuQ
Freq/Calc Tab: Maximum 68, Increment 17 H4C ]%Q
Graphics tab: Max plot freq 68 AlP}H~|M7
Click OK (keep window open, tear off starting MTF graph for later comparison) eUP.:(E
Optimization > Automatic Design Fc{M
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Output controls: Click Draw System button wc?`QX}I
General constraints: Min center thickness 0.8, Min edge thickness 0.5 (others default) OwhMtYq
Specific constraints: 1?:/8l%V
Click Insert Specific Constraint d/I ,`
Default display is Optical Definitions, Effective Focal Length (correct choice) cXM4+pa=%
Enter 8.25 for Constraint Target $['_m~
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Click OK. gaFOm9y.e
File > Save Lens As (new name, digcam20_opt.len) \09m
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Re-run View Lens window to see new lens picture. N l~' W
Re-run each of the Quick Analysis windows and note scales. J~.8.]gXW
Re-run the MTF window, compare to tear-off of starting point a2J01B
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以下直接复制到命令行即可出最终结果 TmI~P+5w
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! Command inputs for Workshop 2-2 (for reference) \0gU)tVZ
!Restore 20 Degree Digital Camera Lens Setup klkshlk d
!FILE > OPEN |~)!8N.{
RES digcam20_start.len AQAZ+g(IK
!Vary all radii curvature by right clicking in LDM and selecting VARY '3B"@^]
!HINT: for curvatures highlight all and select vary. Then go back and {O24:'K&
!freeze stop surface radius. `h%(ZG ~
CCY S1 0 ; CCY S2 0 ; CCY S4 0 ; CCY S5 0 ; CCY S6 0 ; CCY S7 0 v6uXik
!Vary all thicknesses by same method. Do not select surface with solve since .|ZO2MCd
!varying this surface will delete solve. If mistake, use UNDO or go to ~kHWh8\b:
!LENS > SYSTEM DATA > SYSTEM SOLVES and reselect Paraxial Image Solve Uwj|To&QR
THC S1 0 ; THC S2 0 ; THC S3 0 ; THC S4 0 ; THC S5 0 ; THC S6 0 =$kSvCjP
THC S8 0 !Don't forget to vary the image distance which calculates best &l nr? y^
!best real-ray focus from paraxial image plane Y.>F fL
!Vary glass by highlighting, right clicking, and selecting Vary |HT5G=dw
GC1 S1 0 ; GC1 S4 0 ; GC1 S6 0 .W; ,~.l
!Optimize OPTIMIZATION > AUTOMATIC DESIGN )96tBA%u
AUT ),DL rGOl
EFL Z1 = 8.25 !Effective Focal Length Constraint )DR/Xu;b
MNT 0.8 !Minimum Center Thickness General Constraint o03Y w)*
MNE 0.5 !Minimum Edge Thickness General Constraint [g<rzhC~=
DRA S1..I YES !Draw a picture of lens system at each cycle 42E%&DF
GO CEQs}bz
!Reanalyze the system. Make sure to "Tear Off" original analysis before b!lS=zIN
!re-executing to compare optimized system '! \t!@I$
!Re-execute Drawing sVT:1 kI
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GO =}F}XSvXH
!Re-execute MTF _+B{n^ {
MTF f2*e&+LjTP
MFR 68 Qs\m" y x
IFR 17 LH_VdLds
GO &/+LY_r'<I
!Re-execute Field (Distortion) Analysis $p(
FIE G; jX@XqZ
GO +f){x9
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!Save Lens FILE > SAVE LENS AS... "`6pF 8k
SAV digcam20_opt
