主要是看人家的操作步骤,想学命令的人请看，十分有用 f*f9: xUY
File > Open (locate saved Workshop 1 lens if it is not open already, digcam20_start.len) xGQ:7g+qu
Display > View Lens (accept defaults, click OK, keep window open) 6m<9^NT
In LDM spreadsheet, select surfaces 1 to Image ,
Vr6
Choose Edit > Default Variables, then click in any cell to unselect the range 5 w%9b
Right click in each cell and choose Vary for b8Ad*f\
Thickness of surfaces 1, 4, 6 T>?1+mruM
Glass of surfaces 1, 4, 6 wY)GX
File > Save Lens m#(x D~V
Using Quick Analysis tool bar, click… BU .G~0
Quick Spot Diagram (note scale) o{ ,(`o.1O
Quick Ray Aberration Plot (note scale) AYtcN4\/
Quick Field Plot (note scales and maximum distortion value) dNmX<WXG
Analysis > Diffraction > MTF 5{=MUU=
Freq/Calc Tab: Maximum 68, Increment 17 ~0 t'+.
Graphics tab: Max plot freq 68 NWcF9z%@
Click OK (keep window open, tear off starting MTF graph for later comparison) %[;KO&Ga
Optimization > Automatic Design rJ*WxOoS{
Output controls: Click Draw System button .j,&/y&
General constraints: Min center thickness 0.8, Min edge thickness 0.5 (others default) #_5+kBA+>'
Specific constraints: SQRz8,sqkw
Click Insert Specific Constraint Msdwv.jM
Default display is Optical Definitions, Effective Focal Length (correct choice) D7oV&vXg
Enter 8.25 for Constraint Target $ :P~21,
Click OK. U; Wm x
File > Save Lens As (new name, digcam20_opt.len) z#!Cg*K(
Re-run View Lens window to see new lens picture. D {}\7qe
Re-run each of the Quick Analysis windows and note scales. 3@A k6Uh
Re-run the MTF window, compare to tear-off of starting point ~~
w4854
---------------------------------------------------------------------------------------------- V)@ scB|>,
以下直接复制到命令行即可出最终结果 #@`^
.
---------------------------------------------------------------------------------------------- vdM\scO:
! Command inputs for Workshop 2-2 (for reference) ~nlY8B(
!Restore 20 Degree Digital Camera Lens Setup 27 gm_ *
!FILE > OPEN @T T [H*,
RES digcam20_start.len [! o -F;
!Vary all radii curvature by right clicking in LDM and selecting VARY YLr2j 7
!HINT: for curvatures highlight all and select vary. Then go back and Z/;SR""wa
!freeze stop surface radius. Mqy`j9FbL
CCY S1 0 ; CCY S2 0 ; CCY S4 0 ; CCY S5 0 ; CCY S6 0 ; CCY S7 0 :H 7 "W<
!Vary all thicknesses by same method. Do not select surface with solve since Sy~Mh]{E
!varying this surface will delete solve. If mistake, use UNDO or go to =ye}IpC*M
!LENS > SYSTEM DATA > SYSTEM SOLVES and reselect Paraxial Image Solve @5ybBh]
THC S1 0 ; THC S2 0 ; THC S3 0 ; THC S4 0 ; THC S5 0 ; THC S6 0 /267Q;d
C)
THC S8 0 !Don't forget to vary the image distance which calculates best
]YKWa"
!best real-ray focus from paraxial image plane h Nwb.[
!Vary glass by highlighting, right clicking, and selecting Vary vUNE! j
GC1 S1 0 ; GC1 S4 0 ; GC1 S6 0 Rx<F^J
!Optimize OPTIMIZATION > AUTOMATIC DESIGN C $; ~=
AUT ]y$C6iUY*
EFL Z1 = 8.25 !Effective Focal Length Constraint gA*zFhGVS7
MNT 0.8 !Minimum Center Thickness General Constraint cke[SUH,
MNE 0.5 !Minimum Edge Thickness General Constraint i vk|-C'\
DRA S1..I YES !Draw a picture of lens system at each cycle lUz@Em
GO 7]Yd-vA
!Reanalyze the system. Make sure to "Tear Off" original analysis before '%4,!
!re-executing to compare optimized system >?V->7QLP
!Re-execute Drawing YKk%;U*
VIE |F`'m":$m
GO P&VI2k
!Re-execute MTF i=UJ*c
MTF Wov_jVdN\
MFR 68 CaMG$X&O
IFR 17 bHNaaif} P
GO x@ )u:0
!Re-execute Field (Distortion) Analysis .BvV[`P
FIE h:wD
&Fh8
GO I1jF`xQ&0
!Save Lens FILE > SAVE LENS AS... a{=~#u 8
SAV digcam20_opt
