主要是看人家的操作步骤,想学命令的人请看，十分有用 z EU[u7%
File > Open (locate saved Workshop 1 lens if it is not open already, digcam20_start.len) 2|^@=.4\
Display > View Lens (accept defaults, click OK, keep window open) H;4QuB'^
In LDM spreadsheet, select surfaces 1 to Image 2j8GJU/L
Choose Edit > Default Variables, then click in any cell to unselect the range &PE%tm
Right click in each cell and choose Vary for K7`6G[ RMb
Thickness of surfaces 1, 4, 6 F8Ety^9>9
Glass of surfaces 1, 4, 6 d~qQ_2M[G
File > Save Lens F:q4cfL6
Using Quick Analysis tool bar, click… s R1_L/ .
Quick Spot Diagram (note scale) s 4_Dqm
Quick Ray Aberration Plot (note scale) vcdVck@
Quick Field Plot (note scales and maximum distortion value) KxK,en4)+
Analysis > Diffraction > MTF e:Y+ -C5
Freq/Calc Tab: Maximum 68, Increment 17 D<69xT,
Graphics tab: Max plot freq 68 w"?Q0bhV9y
Click OK (keep window open, tear off starting MTF graph for later comparison) Qz(2Iu{E]
Optimization > Automatic Design @
& N
Output controls: Click Draw System button #epbc K
General constraints: Min center thickness 0.8, Min edge thickness 0.5 (others default) ':pDlUA
Specific constraints: nQmHYOF%
Click Insert Specific Constraint #4mRMsW5"
Default display is Optical Definitions, Effective Focal Length (correct choice) ?)-6~p 4N
Enter 8.25 for Constraint Target
]S4" JcM
Click OK. 3[u-
LYW
File > Save Lens As (new name, digcam20_opt.len) sMGo1pG(
Re-run View Lens window to see new lens picture. 7 2JwG7qh
Re-run each of the Quick Analysis windows and note scales. ^}Vc||S
Re-run the MTF window, compare to tear-off of starting point +"-l~`+<es
---------------------------------------------------------------------------------------------- FzX ;~CA
以下直接复制到命令行即可出最终结果 IOZw[9](+
---------------------------------------------------------------------------------------------- Lbrl CB+
! Command inputs for Workshop 2-2 (for reference) 4,LS08&gh
!Restore 20 Degree Digital Camera Lens Setup FDD=I\Ic
!FILE > OPEN A #cFO)"
RES digcam20_start.len THhxj)
!Vary all radii curvature by right clicking in LDM and selecting VARY Y:;_R=M
!HINT: for curvatures highlight all and select vary. Then go back and 0RA#Y(IR
!freeze stop surface radius. xR0*w7YE
CCY S1 0 ; CCY S2 0 ; CCY S4 0 ; CCY S5 0 ; CCY S6 0 ; CCY S7 0 6:G&x<{
!Vary all thicknesses by same method. Do not select surface with solve since tV(iC~/
!varying this surface will delete solve. If mistake, use UNDO or go to ]%D!-[C%1
!LENS > SYSTEM DATA > SYSTEM SOLVES and reselect Paraxial Image Solve X1(ds*' Kv
THC S1 0 ; THC S2 0 ; THC S3 0 ; THC S4 0 ; THC S5 0 ; THC S6 0 Ob]\t/:%P
THC S8 0 !Don't forget to vary the image distance which calculates best +@?Q "B5u}
!best real-ray focus from paraxial image plane 8%CznAO"?W
!Vary glass by highlighting, right clicking, and selecting Vary *fc8M( ]&d
GC1 S1 0 ; GC1 S4 0 ; GC1 S6 0 aeUgr !
!Optimize OPTIMIZATION > AUTOMATIC DESIGN QD,m`7(
AUT 6ioj!w< N
EFL Z1 = 8.25 !Effective Focal Length Constraint Dst;sLr[,
MNT 0.8 !Minimum Center Thickness General Constraint f4 S:L&
MNE 0.5 !Minimum Edge Thickness General Constraint uuEvH<1
DRA S1..I YES !Draw a picture of lens system at each cycle Hj>9 #>b
GO 5Jo'h]
!Reanalyze the system. Make sure to "Tear Off" original analysis before -lJ|x>PG'
!re-executing to compare optimized system hx0 t!k(3
!Re-execute Drawing f?. VVlD
VIE mbbhz,
GO O~qRHYv
!Re-execute MTF J.XkdGQ
MTF |_p7vl"
MFR 68 !O"2)RU1
IFR 17 L?n hm=D
GO \2 DED
!Re-execute Field (Distortion) Analysis tZ[9qms^_
FIE aQmS'{d?^
GO ?VotIruR
!Save Lens FILE > SAVE LENS AS... $O\m~r4
SAV digcam20_opt
