| liunian |
2016-07-13 15:19 |
程序如下： RT)*H>|
% By Ruibin 08-9-25 {<- BU[H
% Instruction：This program help design LED collimating lens , feedback aspheric parameters and several chief dimensions. UC 3 4AKm
@E$Pjd B5M
clear all;clc {>c O&eiCt
t>T |\WAAL
% The Frist Step: Define independent parameters rE
bC_<
r=3.25; %选择开孔半径 QpPJ99B|
R=4.25; %定义曲面底部半径 FPu "/4v&
d=1; %设置透镜前方平板高度 [$Ld>`3
n=1.4935; %定义材料折射率 D`lTP(] y
dividing_angle=24; %定义Core与TIR的分界角 1v4(
min_angle=1; %设置计算精度 8 ]N+V:
N=4; %设定拟合非球面系数阶数 \S@;>A<J
8 JUUK(&Z
% The Second Step：Caculate induced variable +M6qbIO
angles_Core=(dividing_angle:-min_angle:0);angles_TIR=(90:-min_angle:dividing_angle); !ldb_*)h
num_Core=length(angles_Core);num_TIR=length(angles_TIR); E
VBB:*q6
for i=1:(num_Core) qlSc[nEk
a_Core(i)=(angles_Core(i)*pi/180); 'Z+~G
k1(i)=cot(a_Core(i)); u5 EHzoq
k2(i)=(-k1(i)+(n^2*k1(i)^2+n^2)^(1/2))/(n^2*k1(i)^2-k1(i)^2+n^2); 1Q6W pS
end XnQo0
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k1(num_Core)=999;k2(num_Core)=0; bO: Ei
for i=1:num_TIR M ,8r{[ 2
a_TIR(i)=(angles_TIR(i)*pi/180); ,iU ]zN//
k3(i)=tan((pi/2+asin(cos(a_TIR(i))/n))/2); ++:v O
k4(i)=tan(asin(cos(a_TIR(i))/n)); '@u/] ra:
end V,($I'&/
X0_TIR=R;X0_Core=r;Y0_TIR=0;Y0_Core=r*cot(a_Core(1)); ] }cai1
fi%u]
% The Third Step:Solve functions 0 !rU,74I=
for i=1:num_Core %Solve the curve of Core RV|: mI
syms x; DA@YjebP'
f1=k1(i)*x; 02} &h
f2=k2(i)*(x-X0_Core)+Y0_Core; 8ltHR]v
f=f1-f2; "2X=i`rTi
x=double(solve(f));y=k1(i)*x; @M?N[LG
X0_Core=x;Y0_Core=y; U%ce0z
Px_Core(i)=X0_Core;Py_Core(i)=Y0_Core; nv(Pwb3B
end o*\kg+8
for i=1:num_TIR %Solve the curve of TIR 0 iW]#O/
syms x; 3mgFouX2x,
f1=k3(i)*(x-X0_TIR)+Y0_TIR; Ro y0 ?6O
f2=k4(i)*(x-r)+r*cot(a_TIR(i)); 5,'?NEyw
f=f1-f2; bv>;%TF
x=double(solve(f));y=k3(i)*(x-X0_TIR)+Y0_TIR; 0i9y-32-
X0_TIR=x;Y0_TIR=y; S'HM|&
Px_TIR(i)=X0_TIR;Py_TIR(i)=Y0_TIR; +}X?+Epm
end =eSG7QfS
rB}UFS)
% The furth Step:Fitting the curve *~fZ9EkD
P_Core=polyfit(Px_Core,Py_Core,4); [zK|OMxoV
P_TIR=polyfit(Px_TIR,Py_TIR,4); Bm%:Qc*
j_ \s dH*r
% The fifth Step:Feedback chief dimensions of the lens and Create it Pv`yOx&nE
%Feedback dimensions of the whole lens Lm9y!>1"O
result='透镜尺寸如下：' $g
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Diameter_of_lens=2*Px_TIR(num_TIR) 3~BL!e,
Thickness_of_lens=Py_TIR(num_TIR)+d nbw&+d cJ8
Diameter_of_Core=2*r O1coay
Thickness_of_front_pannel=d q~r )B}
Bottom_thickness=R-r ;'dw`)~jQ
Lowest_Core=P_Core(5) }
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";9cYoK RY
%Feedback dimensions of Lens part TIR }+QgRGQ
result='TIR系数如下：' ?b:J6 (-
Thickness=Py_TIR(num_TIR)-P_TIR(5)+d B @UaaWh
Aperture=Px_TIR(num_TIR) tz&=v,_ jc
Obstruction=r G!oq
;<
Position=P_TIR(5) 9">}@1k
format short e; t</rvAH E
Aspheric=[P_TIR(4) P_TIR(3) P_TIR(2) P_TIR(1)] Q}W6 ?XDu
format short; B>t$Z5Q^X
=XJ
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%DDE Connection d37l/I
TP_COMMAND = ddeinit('TracePro','Scheme'); s7SW4ff1
%Create TIR 4CS 9vv)9R
cmd =['(define TIR (insert:lens-element "PLASTIC" "pmma" (list 0 0 7.0306e-002 1.2580e-001 -2.5732e-003 -2.5281e-006) 18.6774 (list 0 0)(list "cir" 13.6051 0 0 0)(list "cir" 3.25 0 0 0)))']; `.Y["f
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ddeexec(TP_COMMAND,cmd); ._-^ 58[
cmd =['(entity:move TIR 0 0 -2.3712)']; t'_Hp},
ddeexec(TP_COMMAND,cmd); b'O>&V`
cmd =['(property:apply-name TIR "TIR")']; [sTr#9Z
ddeexec(TP_COMMAND,cmd); e1S |&W8
IQoz8!guh:
%Feedback dimensions of Lens part TIR Jj|HeZ1C f
result='Core系数如下：' ,`G8U /
Thickness=Py_TIR(num_TIR)-P_Core(5)+d AASw^A3p
Aperture=r 22`W*e @6h
Obstruction='None' 1s=M3m&H
Position=P_Core(5) RhnSQe
format short e; X(?.*m@+TB
Aspheric=[P_Core(4) P_Core(3) P_Core(2) P_Core(1)] }q G{1Er
format short; ={W;8BUV%^
%Create Core wZ h&w<l'
cmd =['(define Core (insert:lens-element "PLASTIC" "pmma" (list 0 0 -2.6211e-002 1.9124e-001 -1.7949e-002 2.8016e-004) 10.3569 (list 0 0)(list "cir" 3.2500 0 0 0)))']; R?Ki~'k=
ddeexec(TP_COMMAND,cmd); fr;>`u[;
cmd =['(entity:move Core 0 0 5.9493)']; 2 34 OJ?
ddeexec(TP_COMMAND,cmd); 3@J0- w
cmd =['(property:apply-name Core "Core")']; k)b}"' I
ddeexec(TP_COMMAND,cmd); >,y291p2
)~T)$TS
%Create Lens |zK e*H/
cmd =['(define Unite (bool:unite TIR Core))']; O>w Gc8Of\
ddeexec(TP_COMMAND,cmd); m7zen530
cmd =['(define block (insert:block 100 100 100))']; IwKhun
ddeexec(TP_COMMAND,cmd); U voX\
cmd =['(entity:move block 0 0 -50)']; w W1aG
ddeexec(TP_COMMAND,cmd); \s<{V7tq
cmd =['(define Lens (bool:subtract Unite block))']; d `>M-:dF
ddeexec(TP_COMMAND,cmd); (\, <RC\
cmd =['(property:apply-name Lens "Lens")']; s&iM.[k
ddeexec(TP_COMMAND,cmd); 4 v33{sp
n&D<l '4
%Close the DDE connection Zvpcj P
ddeterm(TP_COMMAND); EQSOEf[
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看看吧
