| liunian |
2016-07-13 15:19 |
程序如下： = k\ J<
% By Ruibin 08-9-25 TLehdZ>^
% Instruction：This program help design LED collimating lens , feedback aspheric parameters and several chief dimensions. 5nbEf9 &
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clear all;clc q -8t'7
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% The Frist Step: Define independent parameters OR[{PU=X
r=3.25; %选择开孔半径 {v3P9s(
R=4.25; %定义曲面底部半径 w3jO6*_ M
d=1; %设置透镜前方平板高度 |7x\m t
n=1.4935; %定义材料折射率 F5S@I;
dividing_angle=24; %定义Core与TIR的分界角 KZPEG!-5
min_angle=1; %设置计算精度 \d::l{VB
N=4; %设定拟合非球面系数阶数 s&'QN =A
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% The Second Step：Caculate induced variable YuB+k^
angles_Core=(dividing_angle:-min_angle:0);angles_TIR=(90:-min_angle:dividing_angle); V)}rEX
num_Core=length(angles_Core);num_TIR=length(angles_TIR); q Ww\_S
for i=1:(num_Core) [ $[ :"N_
a_Core(i)=(angles_Core(i)*pi/180); +{/
k1(i)=cot(a_Core(i)); tDUwy^j
k2(i)=(-k1(i)+(n^2*k1(i)^2+n^2)^(1/2))/(n^2*k1(i)^2-k1(i)^2+n^2); 0Won9P
end O*#*%RL|
k1(num_Core)=999;k2(num_Core)=0; #:SNHM^><
for i=1:num_TIR Y))NK'B5
a_TIR(i)=(angles_TIR(i)*pi/180); / *0K92NB
k3(i)=tan((pi/2+asin(cos(a_TIR(i))/n))/2); Bj7gQ%>H4
k4(i)=tan(asin(cos(a_TIR(i))/n)); %D * OO{
end X1~1&:V,<
X0_TIR=R;X0_Core=r;Y0_TIR=0;Y0_Core=r*cot(a_Core(1)); mc4i@<_ ?
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% The Third Step:Solve functions 5atYOe p
for i=1:num_Core %Solve the curve of Core 2#k5+?-c61
syms x; '(/7[tJ
f1=k1(i)*x; *?M GMhE
f2=k2(i)*(x-X0_Core)+Y0_Core; ~g.$|^,.O/
f=f1-f2; Is R!'%Pu
x=double(solve(f));y=k1(i)*x; n?V+dC=F}
X0_Core=x;Y0_Core=y; bV"G~3COy
Px_Core(i)=X0_Core;Py_Core(i)=Y0_Core; 4bgqg0z>
end tsk)z P,<
for i=1:num_TIR %Solve the curve of TIR 'F 3) 9&M
syms x;
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f1=k3(i)*(x-X0_TIR)+Y0_TIR; u G<}N=
f2=k4(i)*(x-r)+r*cot(a_TIR(i)); Po%(~ )S>
f=f1-f2; t45Z@hmcW
x=double(solve(f));y=k3(i)*(x-X0_TIR)+Y0_TIR; &iV {:)L
X0_TIR=x;Y0_TIR=y; I|Gp$ uq _
Px_TIR(i)=X0_TIR;Py_TIR(i)=Y0_TIR;
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end _Zr.ba
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% The furth Step:Fitting the curve rXHv`k y
P_Core=polyfit(Px_Core,Py_Core,4); N?.%?0l
P_TIR=polyfit(Px_TIR,Py_TIR,4); A%^ILyU6c
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% The fifth Step:Feedback chief dimensions of the lens and Create it HJY2#lSha6
%Feedback dimensions of the whole lens B-r0"MX &
result='透镜尺寸如下：' 1x,tu}<u^
Diameter_of_lens=2*Px_TIR(num_TIR) //aF5 :Y#
Thickness_of_lens=Py_TIR(num_TIR)+d /soKucN"h
Diameter_of_Core=2*r 2@
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Thickness_of_front_pannel=d e>AE 8T
Bottom_thickness=R-r Sf r&p>{,
Lowest_Core=P_Core(5) ?^N3&ukkyo
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%Feedback dimensions of Lens part TIR L{c q, jk
result='TIR系数如下：' Mec5h}^
Thickness=Py_TIR(num_TIR)-P_TIR(5)+d Sr?# S
Aperture=Px_TIR(num_TIR) y.q(vzg\_
Obstruction=r v~Y^r2
Position=P_TIR(5) GDuM Y\1
format short e; F,'exuZ
Aspheric=[P_TIR(4) P_TIR(3) P_TIR(2) P_TIR(1)] CJ++?hB]X
format short; 95V@X
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%DDE Connection 9 '2_
TP_COMMAND = ddeinit('TracePro','Scheme'); )[Yv?>ib
%Create TIR >i6yl5s
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)))']; *2X0^H|dS
ddeexec(TP_COMMAND,cmd); gatB QwJb9
cmd =['(entity:move TIR 0 0 -2.3712)']; 'f?$"U JF
ddeexec(TP_COMMAND,cmd); -uy `!A
cmd =['(property:apply-name TIR "TIR")']; pn^ d]rou?
ddeexec(TP_COMMAND,cmd); J.| +ID+
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%Feedback dimensions of Lens part TIR LA)[ip4
result='Core系数如下：' jfqopiSi
Thickness=Py_TIR(num_TIR)-P_Core(5)+d j.@\3'
Aperture=r mtj h`
Obstruction='None' )<Hd T
Position=P_Core(5) #KiRfx4G
format short e; y? co|
Aspheric=[P_Core(4) P_Core(3) P_Core(2) P_Core(1)] .?hP7;hhI
format short; @ W9x$
%Create Core Ho
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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)))']; @#-q^}3
ddeexec(TP_COMMAND,cmd); X ' "SVO.
cmd =['(entity:move Core 0 0 5.9493)']; # m *J&
ddeexec(TP_COMMAND,cmd); yiA<,!;4P
cmd =['(property:apply-name Core "Core")']; +PuPO9jKO@
ddeexec(TP_COMMAND,cmd); "^]cQ"A
q')R4=0
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%Create Lens ?%y?rk <
cmd =['(define Unite (bool:unite TIR Core))']; I'0@viF"Nx
ddeexec(TP_COMMAND,cmd); ,kn"> k9
cmd =['(define block (insert:block 100 100 100))']; |x-S&-
ddeexec(TP_COMMAND,cmd); x
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cmd =['(entity:move block 0 0 -50)']; smDw<slC
ddeexec(TP_COMMAND,cmd); ;/rX Qe1
cmd =['(define Lens (bool:subtract Unite block))']; r'*}TM'8
ddeexec(TP_COMMAND,cmd); yu/`h5& *
cmd =['(property:apply-name Lens "Lens")']; [`):s= FC
ddeexec(TP_COMMAND,cmd); X<%Q"2 h W
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%Close the DDE connection a qc?pqM
ddeterm(TP_COMMAND); 6 M*O{f
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看看吧
