| liunian |
2016-07-13 15:19 |
程序如下： aMwB>bt
% By Ruibin 08-9-25 P+(i^= S
% Instruction：This program help design LED collimating lens , feedback aspheric parameters and several chief dimensions. 8q^o.+9
^mPPyT ,(
clear all;clc Poy^RpnX
& m'kI
% The Frist Step: Define independent parameters ? Rr2/W#F
r=3.25; %选择开孔半径 _8fA?q=
R=4.25; %定义曲面底部半径 N4{nG,Mo ]
d=1; %设置透镜前方平板高度 {1Eu7l-4
n=1.4935; %定义材料折射率 d7Ro}>lp
dividing_angle=24; %定义Core与TIR的分界角 1mgLX_U 9
min_angle=1; %设置计算精度 _D;@v?n6!O
N=4; %设定拟合非球面系数阶数 mG2'Y) S z
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% The Second Step：Caculate induced variable 'Pd(\$ZY
angles_Core=(dividing_angle:-min_angle:0);angles_TIR=(90:-min_angle:dividing_angle); 77 ,oPLSn
num_Core=length(angles_Core);num_TIR=length(angles_TIR); ?S[Y:<R{:
for i=1:(num_Core) raUs% Y3
a_Core(i)=(angles_Core(i)*pi/180); 3S~(:#|
k1(i)=cot(a_Core(i)); (Tvcq
k2(i)=(-k1(i)+(n^2*k1(i)^2+n^2)^(1/2))/(n^2*k1(i)^2-k1(i)^2+n^2); nHst/5dA
end WZewPn>#q
k1(num_Core)=999;k2(num_Core)=0; 5<+K?uhm
for i=1:num_TIR 4 < S'
a_TIR(i)=(angles_TIR(i)*pi/180); 9;=dxWf
k3(i)=tan((pi/2+asin(cos(a_TIR(i))/n))/2); :E_a 0!'
k4(i)=tan(asin(cos(a_TIR(i))/n)); veh
5 }2
end ^twivNB
X0_TIR=R;X0_Core=r;Y0_TIR=0;Y0_Core=r*cot(a_Core(1)); $P {K2"Oc
T0QvnIaP
% The Third Step:Solve functions 7 &%^>PU7
for i=1:num_Core %Solve the curve of Core c:4P%({
syms x; xyeA 2Y
f1=k1(i)*x; dQ:cYNm
f2=k2(i)*(x-X0_Core)+Y0_Core; 4_=Ja2v8;`
f=f1-f2; &"E
lm
x=double(solve(f));y=k1(i)*x; oh-|'5+,;h
X0_Core=x;Y0_Core=y; U~f4e7x*O
Px_Core(i)=X0_Core;Py_Core(i)=Y0_Core; ;sOsT?)7$
end LBlN2)\@
for i=1:num_TIR %Solve the curve of TIR p9[6^rj x8
syms x; HEF?mD3h
f1=k3(i)*(x-X0_TIR)+Y0_TIR; j;nb?;
f2=k4(i)*(x-r)+r*cot(a_TIR(i)); n=sXSxl
f=f1-f2; Tx>K:`oB
x=double(solve(f));y=k3(i)*(x-X0_TIR)+Y0_TIR; O l@_(U
X0_TIR=x;Y0_TIR=y; 2KJ1V+g@a6
Px_TIR(i)=X0_TIR;Py_TIR(i)=Y0_TIR; <z)m%*l vU
end D ]03eu
pbk$o{$`W
% The furth Step:Fitting the curve q!lP"J
P_Core=polyfit(Px_Core,Py_Core,4); Wch~ Yb
P_TIR=polyfit(Px_TIR,Py_TIR,4); n vq3*
4 B[D/kI g
% The fifth Step:Feedback chief dimensions of the lens and Create it I["j=r
%Feedback dimensions of the whole lens Qyh/ed/
result='透镜尺寸如下：' F2I 5q C/
Diameter_of_lens=2*Px_TIR(num_TIR) x~ DLW 1I
Thickness_of_lens=Py_TIR(num_TIR)+d !u|Tu4G^
Diameter_of_Core=2*r lFG9=Wf
Thickness_of_front_pannel=d PX
O!t]*
Bottom_thickness=R-r GHc/Zc"iX
Lowest_Core=P_Core(5) Kx`/\ u=/
RrV>r<Z"Q
%Feedback dimensions of Lens part TIR 3{7T 4p.G
result='TIR系数如下：' oF:v
JDSS
Thickness=Py_TIR(num_TIR)-P_TIR(5)+d /pH(WHT+/H
Aperture=Px_TIR(num_TIR) -apXI.
Obstruction=r ;iQEkn2T|}
Position=P_TIR(5) # J\rv'
format short e; _S?qDG{E|
Aspheric=[P_TIR(4) P_TIR(3) P_TIR(2) P_TIR(1)] U. 0kR/>Z=
format short; :' #\
) ]6h y9<
%DDE Connection ~Qj}ijWD
TP_COMMAND = ddeinit('TracePro','Scheme'); G-um`/ <%
%Create TIR l&(l$@t
cmd =['(define TIR (insert:lens-element "PLASTIC" "pmma" (list 0 0 7.0306e-002 1.2580e-001 -2.5732e-003 -2.5281e-006) 18.6774 (list 0 0)(list "cir" 13.6051 0 0 0)(list "cir" 3.25 0 0 0)))']; @ tUoD>f
ddeexec(TP_COMMAND,cmd); m\u26 ` M
cmd =['(entity:move TIR 0 0 -2.3712)']; 'xK.U I
ddeexec(TP_COMMAND,cmd); kyYLP"oB=
cmd =['(property:apply-name TIR "TIR")'];
m]Y;c_DO:
ddeexec(TP_COMMAND,cmd); Y$
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@%P%
%Feedback dimensions of Lens part TIR &m^@9E)S/
result='Core系数如下：' - xm{&0e)
Thickness=Py_TIR(num_TIR)-P_Core(5)+d X JGB)3QI
Aperture=r HM[klH]s=
Obstruction='None' {<$b Aj
Position=P_Core(5) /%rq
hHs
format short e; 0DPxW8Y -`
Aspheric=[P_Core(4) P_Core(3) P_Core(2) P_Core(1)] Bik*b)9y2
format short; ,?cH"@ RJ
%Create Core }%!tT\ 8
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)))']; EM j;2!
ddeexec(TP_COMMAND,cmd); u0s8yPA
cmd =['(entity:move Core 0 0 5.9493)']; fRZ KEIyk
ddeexec(TP_COMMAND,cmd); #E7AmmqD%
cmd =['(property:apply-name Core "Core")']; MHj,<|8Q
ddeexec(TP_COMMAND,cmd); n`7f"'/:
u eb-2[=
%Create Lens E)N<lh
cmd =['(define Unite (bool:unite TIR Core))']; Q+q ,!w8
ddeexec(TP_COMMAND,cmd); \[:/CxP
cmd =['(define block (insert:block 100 100 100))']; n]Li->1
ddeexec(TP_COMMAND,cmd); -~f51 1<
cmd =['(entity:move block 0 0 -50)']; 1QqHF$S
ddeexec(TP_COMMAND,cmd); W
!}{$
cmd =['(define Lens (bool:subtract Unite block))']; }CGSEr4'w~
ddeexec(TP_COMMAND,cmd); s 0u{d qP
cmd =['(property:apply-name Lens "Lens")']; cQj-+Tmu
ddeexec(TP_COMMAND,cmd); e(
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,YYVj{~2
%Close the DDE connection qPGuo5^
ddeterm(TP_COMMAND); zy'D!db`Z
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看看吧
