| liunian |
2016-07-13 15:19 |
程序如下： 5_";EED
% By Ruibin 08-9-25 NikY0= i
% Instruction：This program help design LED collimating lens , feedback aspheric parameters and several chief dimensions. ]F5?>du@~
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clear all;clc g2%&/zq/
w^N xR ,
% The Frist Step: Define independent parameters ^G'8!!ys
r=3.25; %选择开孔半径 + jD?h-]
R=4.25; %定义曲面底部半径 [B3qZ"
d=1; %设置透镜前方平板高度 P6w!r>?6N
n=1.4935; %定义材料折射率 clK3kBh~&
dividing_angle=24; %定义Core与TIR的分界角 c/.U<
min_angle=1; %设置计算精度 lC&U9=7W
N=4; %设定拟合非球面系数阶数 kSGF LP1FN
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% The Second Step：Caculate induced variable v,w /g|
angles_Core=(dividing_angle:-min_angle:0);angles_TIR=(90:-min_angle:dividing_angle); WP&P#ju&
num_Core=length(angles_Core);num_TIR=length(angles_TIR); {M: Fsay>p
for i=1:(num_Core) {IEc{y7?gO
a_Core(i)=(angles_Core(i)*pi/180); = fa!"$J3
k1(i)=cot(a_Core(i)); -;=0dfC(
k2(i)=(-k1(i)+(n^2*k1(i)^2+n^2)^(1/2))/(n^2*k1(i)^2-k1(i)^2+n^2); $h1`-=\7
end 1z NH[
k1(num_Core)=999;k2(num_Core)=0; cE[B
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for i=1:num_TIR 0eq="|n^|
a_TIR(i)=(angles_TIR(i)*pi/180);
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k3(i)=tan((pi/2+asin(cos(a_TIR(i))/n))/2); B4AV ubMbe
k4(i)=tan(asin(cos(a_TIR(i))/n));
x, YC/J
end & UH .e
X0_TIR=R;X0_Core=r;Y0_TIR=0;Y0_Core=r*cot(a_Core(1)); YCod\} 3
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% The Third Step:Solve functions ec Ixiv\
for i=1:num_Core %Solve the curve of Core ^t4T8ejn
syms x; HJ[@;F|aU
f1=k1(i)*x; X%Jq9_
f2=k2(i)*(x-X0_Core)+Y0_Core; 6jjmrc[#}X
f=f1-f2; B[jCe5!w
x=double(solve(f));y=k1(i)*x; PR?Ls{}p\
X0_Core=x;Y0_Core=y; d
dB}mk6
Px_Core(i)=X0_Core;Py_Core(i)=Y0_Core; 5Mm><"0
end bL\ab
for i=1:num_TIR %Solve the curve of TIR A&_H%]{<:
syms x; o= VzVg
f1=k3(i)*(x-X0_TIR)+Y0_TIR; dWV.5cViP
f2=k4(i)*(x-r)+r*cot(a_TIR(i)); dc UaZfON
f=f1-f2; _r+2o-ZR
x=double(solve(f));y=k3(i)*(x-X0_TIR)+Y0_TIR; n'a= @/
X0_TIR=x;Y0_TIR=y; /bm$G"%d
Px_TIR(i)=X0_TIR;Py_TIR(i)=Y0_TIR; .s-X %%e\
end Gs]m; "o|
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% The furth Step:Fitting the curve dH"wYMNL
P_Core=polyfit(Px_Core,Py_Core,4); SQ7Ws u>T@
P_TIR=polyfit(Px_TIR,Py_TIR,4); ximW!y7
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% The fifth Step:Feedback chief dimensions of the lens and Create it x*GG O)r
%Feedback dimensions of the whole lens *'D(
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result='透镜尺寸如下：' KSsv~!3Yf
Diameter_of_lens=2*Px_TIR(num_TIR) 4DaLt&1
Thickness_of_lens=Py_TIR(num_TIR)+d 5,
Diameter_of_Core=2*r /KD KA)
Thickness_of_front_pannel=d {RFpTh7f:
Bottom_thickness=R-r ?v8.3EE1\o
Lowest_Core=P_Core(5) *
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9UlR fl
%Feedback dimensions of Lens part TIR SSH ))zJ
result='TIR系数如下：' Tjba @^T
Thickness=Py_TIR(num_TIR)-P_TIR(5)+d `)e5p K
Aperture=Px_TIR(num_TIR) eZpyDw C{
Obstruction=r B3 f Kb#T
Position=P_TIR(5) :t?Z
format short e; :u$nH9kwv
Aspheric=[P_TIR(4) P_TIR(3) P_TIR(2) P_TIR(1)] Q/'jw yj_
format short; G&qO{" Js
Y*0 AS|r!
%DDE Connection c^ $_epc*
TP_COMMAND = ddeinit('TracePro','Scheme'); j >f
%Create TIR n.+%eYM<
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)))']; z7B>7}i-
ddeexec(TP_COMMAND,cmd); 9K ~0:c
cmd =['(entity:move TIR 0 0 -2.3712)']; hgt@Mb
ddeexec(TP_COMMAND,cmd); 8 nCw1
cmd =['(property:apply-name TIR "TIR")']; YC(7k7
ddeexec(TP_COMMAND,cmd); M \4pTcz{
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%Feedback dimensions of Lens part TIR Zj,1)ii
result='Core系数如下：' 45g:q
Thickness=Py_TIR(num_TIR)-P_Core(5)+d 7K"{}:
Aperture=r -! d'!;
]
Obstruction='None' y.h2hv]Bc
Position=P_Core(5) zx<:1n F,]
format short e; KtTlc#*KU
Aspheric=[P_Core(4) P_Core(3) P_Core(2) P_Core(1)] k:1p:&*m
format short; Da. eV U;
%Create Core b,vSE,&xP
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)))']; SP}!v5.
ddeexec(TP_COMMAND,cmd); \YXzq<7
cmd =['(entity:move Core 0 0 5.9493)']; Tp
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ddeexec(TP_COMMAND,cmd); Ltv!;^Q5
cmd =['(property:apply-name Core "Core")']; OH.lAF4E(
ddeexec(TP_COMMAND,cmd); eBUexxBY
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%Create Lens zVEG )
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cmd =['(define Unite (bool:unite TIR Core))']; Ag[Zs%X
ddeexec(TP_COMMAND,cmd); K a\h a
cmd =['(define block (insert:block 100 100 100))']; -"Mq<XO&51
ddeexec(TP_COMMAND,cmd); 2b u,_<K.
cmd =['(entity:move block 0 0 -50)']; rV6&: \
ddeexec(TP_COMMAND,cmd);
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cmd =['(define Lens (bool:subtract Unite block))']; [)efh9P*
ddeexec(TP_COMMAND,cmd); ^"lVTDsU
cmd =['(property:apply-name Lens "Lens")']; hJ~Na\?w
ddeexec(TP_COMMAND,cmd); f\p#3I wwH
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%Close the DDE connection \mK;BW g)
ddeterm(TP_COMMAND); .wH`9aq;5@
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看看吧
