| liunian |
2016-07-13 15:19 |
程序如下： |Tv#4st
% By Ruibin 08-9-25 p?02C# p
% Instruction：This program help design LED collimating lens , feedback aspheric parameters and several chief dimensions. lov!o: dJ
#$.;'#u'so
clear all;clc D, k6$`
bTI|F]^!
% The Frist Step: Define independent parameters x`mG <Yt
r=3.25; %选择开孔半径 v&6-a* <Z
R=4.25; %定义曲面底部半径 W8G,=d}6
d=1; %设置透镜前方平板高度 5tl< 3g `
n=1.4935; %定义材料折射率 Z3Og=XHR
dividing_angle=24; %定义Core与TIR的分界角 Lc}LGq!
min_angle=1; %设置计算精度 zrvF]|1UP
N=4; %设定拟合非球面系数阶数 lqy Qf$t
N" Z{5 A
% The Second Step：Caculate induced variable ,<.V7(|t)
angles_Core=(dividing_angle:-min_angle:0);angles_TIR=(90:-min_angle:dividing_angle); &j;wCvE4+
num_Core=length(angles_Core);num_TIR=length(angles_TIR); |44Ploz2b
for i=1:(num_Core) aEB_#1
a_Core(i)=(angles_Core(i)*pi/180); 91/Q9xY
k1(i)=cot(a_Core(i)); )7hqJa-V
k2(i)=(-k1(i)+(n^2*k1(i)^2+n^2)^(1/2))/(n^2*k1(i)^2-k1(i)^2+n^2); kBS9tKBWg
end t^&Cx h
k1(num_Core)=999;k2(num_Core)=0; 11 NQR[
for i=1:num_TIR ,Co|-DYf}
a_TIR(i)=(angles_TIR(i)*pi/180); wH*-(*N "
k3(i)=tan((pi/2+asin(cos(a_TIR(i))/n))/2); hWjc<9
k4(i)=tan(asin(cos(a_TIR(i))/n)); )705V|v
end &0d# Y]D4`
X0_TIR=R;X0_Core=r;Y0_TIR=0;Y0_Core=r*cot(a_Core(1)); 7P } W
*
5%"V[lDx@
% The Third Step:Solve functions ]U+ LJOb
for i=1:num_Core %Solve the curve of Core xR~h wj
syms x; .e#w)K
f1=k1(i)*x; nkPh,X\N0
f2=k2(i)*(x-X0_Core)+Y0_Core; [+Iz@0 q
f=f1-f2; Q3'llOx
x=double(solve(f));y=k1(i)*x; 6bg
;q(*7
X0_Core=x;Y0_Core=y; RbB.q p
Px_Core(i)=X0_Core;Py_Core(i)=Y0_Core; p%ki>p )E|
end PI { bmZ
for i=1:num_TIR %Solve the curve of TIR wLIMv3 ;k
syms x; 1er
TldX
f1=k3(i)*(x-X0_TIR)+Y0_TIR; ijv(9m R
f2=k4(i)*(x-r)+r*cot(a_TIR(i));
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f=f1-f2; cVv=*81 \
x=double(solve(f));y=k3(i)*(x-X0_TIR)+Y0_TIR; AI2)g1m
X0_TIR=x;Y0_TIR=y; )$2QZ
qX
Px_TIR(i)=X0_TIR;Py_TIR(i)=Y0_TIR; Z-%\
<zT
end =IZT(8
M/f<A$xx_
% The furth Step:Fitting the curve E_rI ?t^
P_Core=polyfit(Px_Core,Py_Core,4); #^0R&) T
P_TIR=polyfit(Px_TIR,Py_TIR,4); |"}FXa O
yX>K/68
% The fifth Step:Feedback chief dimensions of the lens and Create it % @b0[ZC
%Feedback dimensions of the whole lens qz_7%c]K[
result='透镜尺寸如下：' B`)BZ,#p
Diameter_of_lens=2*Px_TIR(num_TIR) bIDj[-CDG
Thickness_of_lens=Py_TIR(num_TIR)+d NWESP U):w
Diameter_of_Core=2*r J3V=
46Yc
Thickness_of_front_pannel=d ; nfdGB
Bottom_thickness=R-r XSB"{H>&
Lowest_Core=P_Core(5) dlh)g p;
>b}o~F^J
%Feedback dimensions of Lens part TIR mthA4sz
result='TIR系数如下：' ;+R&}[9,A)
Thickness=Py_TIR(num_TIR)-P_TIR(5)+d +HpA:]#Y
Aperture=Px_TIR(num_TIR) {lzWrUGO
Obstruction=r EU 6 o Q
Position=P_TIR(5) 0 ] ,r0
format short e; 4\N ;2N
Aspheric=[P_TIR(4) P_TIR(3) P_TIR(2) P_TIR(1)] P bn*_/H
format short; /{ J4:N'B>
z| J_b"u4
%DDE Connection *8 A
TP_COMMAND = ddeinit('TracePro','Scheme'); ! I:% 0D
%Create TIR 9<?M 8_
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)))']; M]
%?>G
ddeexec(TP_COMMAND,cmd); 9rX&uP)j^#
cmd =['(entity:move TIR 0 0 -2.3712)']; O/(`S<iip
ddeexec(TP_COMMAND,cmd); q9K)Xk$LF
cmd =['(property:apply-name TIR "TIR")']; m])y .T
ddeexec(TP_COMMAND,cmd); hh%-(HaLX3
Qy<P463A(l
%Feedback dimensions of Lens part TIR ?zMHP#i
result='Core系数如下：' 7aRi 5
Thickness=Py_TIR(num_TIR)-P_Core(5)+d _.Nbt(mz
Aperture=r 05#1w#i
Obstruction='None' |^I0dR/w:
Position=P_Core(5) H|<[YYk
format short e; & ywPuTt
Aspheric=[P_Core(4) P_Core(3) P_Core(2) P_Core(1)] S3 %FHS
format short; *;slV3
%Create Core >2)OiQ`zg
cmd =['(define Core (insert:lens-element "PLASTIC" "pmma" (list 0 0 -2.6211e-002 1.9124e-001 -1.7949e-002 2.8016e-004) 10.3569 (list 0 0)(list "cir" 3.2500 0 0 0)))']; Ug SB>V<?
ddeexec(TP_COMMAND,cmd); NNR`!Pty
cmd =['(entity:move Core 0 0 5.9493)']; | j`@eF/"
ddeexec(TP_COMMAND,cmd); uAq~=)F>,
cmd =['(property:apply-name Core "Core")']; ZU4nc 3__
ddeexec(TP_COMMAND,cmd); 8 >EWKI9
2]jn '4
%Create Lens f*% D$Mqg
cmd =['(define Unite (bool:unite TIR Core))']; !Pvf;rNI1T
ddeexec(TP_COMMAND,cmd); {6|G@ ""O
cmd =['(define block (insert:block 100 100 100))']; rU:`*b<
ddeexec(TP_COMMAND,cmd); uBKgcpvTs
cmd =['(entity:move block 0 0 -50)']; Sq V},
ddeexec(TP_COMMAND,cmd); _Ey9G
cmd =['(define Lens (bool:subtract Unite block))']; 7IH@oMvE
ddeexec(TP_COMMAND,cmd); {\"x3;3!6
cmd =['(property:apply-name Lens "Lens")']; sf
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ddeexec(TP_COMMAND,cmd); 6vo;! V6
`2WFk8) F
%Close the DDE connection 6I4\q.^qw
ddeterm(TP_COMMAND); qJs<#MQ2
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看看吧
