| liunian |
2016-07-13 15:19 |
程序如下： J7Y lmi
% By Ruibin 08-9-25 p.@_3^#|
% Instruction：This program help design LED collimating lens , feedback aspheric parameters and several chief dimensions. >= VCKN2'j
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clear all;clc 59X'-fg ,
$z[r (a^a
% The Frist Step: Define independent parameters 3:ELYn
r=3.25; %选择开孔半径 l/6$BP U`
R=4.25; %定义曲面底部半径 W6Z3UJ-
d=1; %设置透镜前方平板高度 ^EF VjGM
n=1.4935; %定义材料折射率 Y U6D;
dividing_angle=24; %定义Core与TIR的分界角 d: {#Dk#
min_angle=1; %设置计算精度 #-{^={p "
N=4; %设定拟合非球面系数阶数 I\WBPI
dR@XwEpP
% The Second Step：Caculate induced variable 8d|#W
angles_Core=(dividing_angle:-min_angle:0);angles_TIR=(90:-min_angle:dividing_angle); o)r%4YOL
num_Core=length(angles_Core);num_TIR=length(angles_TIR); R^+,D
for i=1:(num_Core) #y>q)Ph
a_Core(i)=(angles_Core(i)*pi/180); :211T&B%A_
k1(i)=cot(a_Core(i)); Cj1nll 8c
k2(i)=(-k1(i)+(n^2*k1(i)^2+n^2)^(1/2))/(n^2*k1(i)^2-k1(i)^2+n^2); jx[g;7~X
end !'f.g|a
k1(num_Core)=999;k2(num_Core)=0; =Eb4Iyz
for i=1:num_TIR 4khc*fh
a_TIR(i)=(angles_TIR(i)*pi/180); \VAm4
k3(i)=tan((pi/2+asin(cos(a_TIR(i))/n))/2); qku}cWD9/_
k4(i)=tan(asin(cos(a_TIR(i))/n)); [\,Jy8t)\
end 8;G uJP\
X0_TIR=R;X0_Core=r;Y0_TIR=0;Y0_Core=r*cot(a_Core(1)); ibL
_s X@BE
% The Third Step:Solve functions 6)j/"9oY
for i=1:num_Core %Solve the curve of Core %z "${ zw
syms x; Uf\,U8U B
f1=k1(i)*x; S<Od`I
f2=k2(i)*(x-X0_Core)+Y0_Core; i/{`rv*K[
f=f1-f2; 1|/-Ff"1@
x=double(solve(f));y=k1(i)*x; j &w4yY
X0_Core=x;Y0_Core=y; CEEAyip-c
Px_Core(i)=X0_Core;Py_Core(i)=Y0_Core; 3 Xl!Z^W
end ujan2'YT
for i=1:num_TIR %Solve the curve of TIR
q:vc ;y
syms x; >))K%\p
f1=k3(i)*(x-X0_TIR)+Y0_TIR; F*J@O Y8i
f2=k4(i)*(x-r)+r*cot(a_TIR(i)); y|2y! &o,!
f=f1-f2; y\@INA^
x=double(solve(f));y=k3(i)*(x-X0_TIR)+Y0_TIR; &E0L 2gbI
X0_TIR=x;Y0_TIR=y; zn2 Qp
Px_TIR(i)=X0_TIR;Py_TIR(i)=Y0_TIR; %Gc)$z/Wd
end 4Z CD@C
;:Q&Rf"@%
% The furth Step:Fitting the curve r31) Ed$
P_Core=polyfit(Px_Core,Py_Core,4); }zy h!
P_TIR=polyfit(Px_TIR,Py_TIR,4); =.\ PG [
aM!%EaT
% The fifth Step:Feedback chief dimensions of the lens and Create it ^j *H
%Feedback dimensions of the whole lens .Hm1ispq
result='透镜尺寸如下：' [/GCy0jk
Diameter_of_lens=2*Px_TIR(num_TIR) s]'EIw}mo
Thickness_of_lens=Py_TIR(num_TIR)+d wHE1Jqpo
Diameter_of_Core=2*r "fOxS\er
Thickness_of_front_pannel=d d$#DXLA\P
Bottom_thickness=R-r 2 i97
Lowest_Core=P_Core(5) b<8,'QgB
J|.n bSE
%Feedback dimensions of Lens part TIR Ux+UcBKm-
result='TIR系数如下：' y1 _z(L;I
Thickness=Py_TIR(num_TIR)-P_TIR(5)+d yP0XA=,Y
Aperture=Px_TIR(num_TIR) kX "*kD
Obstruction=r Jm[_ X
Position=P_TIR(5) ':#DROe!
format short e; z2IKd 'Wy
Aspheric=[P_TIR(4) P_TIR(3) P_TIR(2) P_TIR(1)] h)pYV>!d
format short; DW >|'w %
YES-,;ZQ'
%DDE Connection I~) A!vp
TP_COMMAND = ddeinit('TracePro','Scheme'); 0;Z ] vl/|
%Create TIR ,?(U4pzX
cmd =['(define TIR (insert:lens-element "PLASTIC" "pmma" (list 0 0 7.0306e-002 1.2580e-001 -2.5732e-003 -2.5281e-006) 18.6774 (list 0 0)(list "cir" 13.6051 0 0 0)(list "cir" 3.25 0 0 0)))']; vu|-}v?:
ddeexec(TP_COMMAND,cmd); xFp?+a
cmd =['(entity:move TIR 0 0 -2.3712)']; &h'NC%"v
ddeexec(TP_COMMAND,cmd); Tu&W7aoX5
cmd =['(property:apply-name TIR "TIR")']; ? F/)<r
ddeexec(TP_COMMAND,cmd); s}g3*_"
4 `]
%Feedback dimensions of Lens part TIR "] [u
result='Core系数如下：' :b"&Rc&s.
Thickness=Py_TIR(num_TIR)-P_Core(5)+d NN] 8T
Aperture=r vE C#W43l
Obstruction='None' "9O8#i<N r
Position=P_Core(5) }dpE>
format short e; eZMfn$McJv
Aspheric=[P_Core(4) P_Core(3) P_Core(2) P_Core(1)] #8r1<`']!
format short; RW|X h8.O
%Create Core KS Q*HO)5
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)))']; -7(,*1Tk
ddeexec(TP_COMMAND,cmd); "w{$d&+?ag
cmd =['(entity:move Core 0 0 5.9493)']; sOhKMz
ddeexec(TP_COMMAND,cmd); N4$ K {
cmd =['(property:apply-name Core "Core")']; s fzDE&>'
ddeexec(TP_COMMAND,cmd); w-P;E!gTt
04#<qd&ob@
%Create Lens FE3uNfQs|
cmd =['(define Unite (bool:unite TIR Core))']; K96N{"{iI%
ddeexec(TP_COMMAND,cmd); #+(@i|!ifo
cmd =['(define block (insert:block 100 100 100))']; =h,J !0Y
ddeexec(TP_COMMAND,cmd); bA\(oD+:
cmd =['(entity:move block 0 0 -50)']; C=8I Ql[^e
ddeexec(TP_COMMAND,cmd); !dOp LUh l
cmd =['(define Lens (bool:subtract Unite block))']; z yrjb 8
ddeexec(TP_COMMAND,cmd); _@! yj
cmd =['(property:apply-name Lens "Lens")']; o,[Em<
ddeexec(TP_COMMAND,cmd); 4P}d/w?'KL
B_S))3
%Close the DDE connection &/8B (0<
ddeterm(TP_COMMAND); }% `f%/
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看看吧
