| liunian |
2016-07-13 15:19 |
程序如下： [u:_J qf-
% By Ruibin 08-9-25 =t2epIr 5
% Instruction：This program help design LED collimating lens , feedback aspheric parameters and several chief dimensions. _De;SB % V
^;d ;b<
clear all;clc -6\9B>qa
ovp>"VuC
% The Frist Step: Define independent parameters Jt"Wtr
r=3.25; %选择开孔半径 V
ALYA=w/
R=4.25; %定义曲面底部半径 P+a&R<Dj4
d=1; %设置透镜前方平板高度 >qla,}x
n=1.4935; %定义材料折射率 [ cq>QMW
dividing_angle=24; %定义Core与TIR的分界角 /~:ztv\$M"
min_angle=1; %设置计算精度 $fKWB5p|()
N=4; %设定拟合非球面系数阶数 z,WrLZC
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% The Second Step：Caculate induced variable L<n_}ucA
angles_Core=(dividing_angle:-min_angle:0);angles_TIR=(90:-min_angle:dividing_angle); Aj_}B.
num_Core=length(angles_Core);num_TIR=length(angles_TIR); sr4K-|@
for i=1:(num_Core) M=%p$\x
a_Core(i)=(angles_Core(i)*pi/180); ,bJx|
K
k1(i)=cot(a_Core(i)); Sk- Ti\
k2(i)=(-k1(i)+(n^2*k1(i)^2+n^2)^(1/2))/(n^2*k1(i)^2-k1(i)^2+n^2); ,ic}
end 5:wf"3%%
k1(num_Core)=999;k2(num_Core)=0; O{PRK5 ^h
for i=1:num_TIR [Pay<]c6g
a_TIR(i)=(angles_TIR(i)*pi/180); [}D) 73h`
k3(i)=tan((pi/2+asin(cos(a_TIR(i))/n))/2); 23PSv8;EM
k4(i)=tan(asin(cos(a_TIR(i))/n)); f
3 6rU
end W+vm!7wX0
X0_TIR=R;X0_Core=r;Y0_TIR=0;Y0_Core=r*cot(a_Core(1)); $HRpG
+t f=
% The Third Step:Solve functions S1. "2AxO
for i=1:num_Core %Solve the curve of Core 4b)xW&K{
syms x; %zGPF
f1=k1(i)*x; ETtR*5Y 5
f2=k2(i)*(x-X0_Core)+Y0_Core; m(Oup=\%b}
f=f1-f2; !u"Hf7/
x=double(solve(f));y=k1(i)*x; Y*6*;0Kx
X0_Core=x;Y0_Core=y; u4Sa4o
Px_Core(i)=X0_Core;Py_Core(i)=Y0_Core; ()iJv f>@
end
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for i=1:num_TIR %Solve the curve of TIR GC~::m~
syms x; =o {`vv
f1=k3(i)*(x-X0_TIR)+Y0_TIR; {)+/w"^.
f2=k4(i)*(x-r)+r*cot(a_TIR(i)); EpiagCS
f=f1-f2; E ?-K_p
x=double(solve(f));y=k3(i)*(x-X0_TIR)+Y0_TIR; S9.jc@#.`
X0_TIR=x;Y0_TIR=y; ],LOkAX
Px_TIR(i)=X0_TIR;Py_TIR(i)=Y0_TIR; @U}UC G7+
end C9fJLCufC
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% The furth Step:Fitting the curve XH/|jE.9^|
P_Core=polyfit(Px_Core,Py_Core,4); L:31toGK
P_TIR=polyfit(Px_TIR,Py_TIR,4); c;WS !.
Q{%ow:;s*
% The fifth Step:Feedback chief dimensions of the lens and Create it ixp %aRRP
%Feedback dimensions of the whole lens ~DSle 3
result='透镜尺寸如下：' /a,q4tD@
Diameter_of_lens=2*Px_TIR(num_TIR) ,yC~{ H
Thickness_of_lens=Py_TIR(num_TIR)+d rkD(K G9E
Diameter_of_Core=2*r 54k
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Thickness_of_front_pannel=d yO !*pC
Bottom_thickness=R-r N. f Ig
Lowest_Core=P_Core(5) giPyo"SD
}"szL=s
%Feedback dimensions of Lens part TIR >uV G]
result='TIR系数如下：' R\X J
Thickness=Py_TIR(num_TIR)-P_TIR(5)+d ;gF"o 5/Q
Aperture=Px_TIR(num_TIR) 4)`{ L$
Obstruction=r MT3UJ6 ~P
Position=P_TIR(5) ]UNmhF!W>u
format short e;
! _QU-
Aspheric=[P_TIR(4) P_TIR(3) P_TIR(2) P_TIR(1)] <|{=O9
format short; D =3NI
MQI6e".
%DDE Connection J[^-k!9M
TP_COMMAND = ddeinit('TracePro','Scheme'); O)hNHI F
%Create TIR Y,+$vj:y8
cmd =['(define TIR (insert:lens-element "PLASTIC" "pmma" (list 0 0 7.0306e-002 1.2580e-001 -2.5732e-003 -2.5281e-006) 18.6774 (list 0 0)(list "cir" 13.6051 0 0 0)(list "cir" 3.25 0 0 0)))']; #e=[W) )
ddeexec(TP_COMMAND,cmd); B$ {Q Y)t
cmd =['(entity:move TIR 0 0 -2.3712)']; KjhOz%Yt[o
ddeexec(TP_COMMAND,cmd); c c@y
cmd =['(property:apply-name TIR "TIR")']; f>Ge
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ddeexec(TP_COMMAND,cmd); ?O28 Q DUI
+Ix;~
%Feedback dimensions of Lens part TIR s01n[jQ
result='Core系数如下：' (*#S%4(YX
Thickness=Py_TIR(num_TIR)-P_Core(5)+d Z/%>/
Aperture=r ]":PO4M$*
Obstruction='None' 1%>/%eyn5
Position=P_Core(5) Y gg+*z
format short e; w'}b 8m(L
Aspheric=[P_Core(4) P_Core(3) P_Core(2) P_Core(1)] ` CRW2^g
format short; R@;kY S
%Create Core d}Q;CF3 m:
cmd =['(define Core (insert:lens-element "PLASTIC" "pmma" (list 0 0 -2.6211e-002 1.9124e-001 -1.7949e-002 2.8016e-004) 10.3569 (list 0 0)(list "cir" 3.2500 0 0 0)))']; C}7Sh6
ddeexec(TP_COMMAND,cmd); Ug/b;( dJ'
cmd =['(entity:move Core 0 0 5.9493)']; 6z~6o 0s~
ddeexec(TP_COMMAND,cmd); P#iBwmwN+.
cmd =['(property:apply-name Core "Core")']; ^W;\faG
ddeexec(TP_COMMAND,cmd); g$uj<"^
F6yMk%
%Create Lens \\6/"
cmd =['(define Unite (bool:unite TIR Core))']; [V
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ddeexec(TP_COMMAND,cmd); *M09Y'5]
cmd =['(define block (insert:block 100 100 100))']; w?Y;pc}1B
ddeexec(TP_COMMAND,cmd); h (ZZ7(ue
cmd =['(entity:move block 0 0 -50)']; "HlT-0F
ddeexec(TP_COMMAND,cmd); ]5wc8Kh"
cmd =['(define Lens (bool:subtract Unite block))']; y%f'7YZ4
ddeexec(TP_COMMAND,cmd); G{)2f &<
cmd =['(property:apply-name Lens "Lens")']; !?,rcgi
ddeexec(TP_COMMAND,cmd); "O kJPu2!W
FK<1SOE
%Close the DDE connection \Gg6&:Ua
ddeterm(TP_COMMAND); ).5$c0`U&
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看看吧
