| liunian |
2016-07-13 15:19 |
程序如下： FN#6pM']|
% By Ruibin 08-9-25 MI|51&m
% Instruction：This program help design LED collimating lens , feedback aspheric parameters and several chief dimensions. e7{n= M
O};U3=^0f
clear all;clc #xqeCX 4p
d(>7BV
% The Frist Step: Define independent parameters )\:cL GM
r=3.25; %选择开孔半径 [TZl vX(E
R=4.25; %定义曲面底部半径 1_Um6vS#
d=1; %设置透镜前方平板高度 @quNVx(y
n=1.4935; %定义材料折射率 -fl?G%:(!0
dividing_angle=24; %定义Core与TIR的分界角 wff&ci28
min_angle=1; %设置计算精度
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N=4; %设定拟合非球面系数阶数 Lx-ofN\
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% The Second Step：Caculate induced variable 8{5Y%InL
angles_Core=(dividing_angle:-min_angle:0);angles_TIR=(90:-min_angle:dividing_angle); 5R v6+ d
num_Core=length(angles_Core);num_TIR=length(angles_TIR); +X i#y}%
for i=1:(num_Core) AsRS7V
a_Core(i)=(angles_Core(i)*pi/180); {emO&#=@CP
k1(i)=cot(a_Core(i)); m6a q_u{W
k2(i)=(-k1(i)+(n^2*k1(i)^2+n^2)^(1/2))/(n^2*k1(i)^2-k1(i)^2+n^2); uiO7sf6
end pV#~$e
k1(num_Core)=999;k2(num_Core)=0; 8& 6h()
for i=1:num_TIR ta>:iQ a
a_TIR(i)=(angles_TIR(i)*pi/180); 8K!
l X
k3(i)=tan((pi/2+asin(cos(a_TIR(i))/n))/2); (k9 {&mPJ
k4(i)=tan(asin(cos(a_TIR(i))/n)); Do7&OBI~
end oYN P,8r^
X0_TIR=R;X0_Core=r;Y0_TIR=0;Y0_Core=r*cot(a_Core(1)); *p; Fwj]
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% The Third Step:Solve functions DLYk#d: q?
for i=1:num_Core %Solve the curve of Core ]8(_{@ /
syms x; x+zz:^yHYf
f1=k1(i)*x; 6! } @vp![
f2=k2(i)*(x-X0_Core)+Y0_Core; ] X,C9
f=f1-f2; 4h >Dpml
x=double(solve(f));y=k1(i)*x; 1FU(j*~:
X0_Core=x;Y0_Core=y; y4aSf2
Px_Core(i)=X0_Core;Py_Core(i)=Y0_Core; _B` '1tNx
end L]L-000D(
for i=1:num_TIR %Solve the curve of TIR '>AOJ aA
syms x; B $aA=+<S
f1=k3(i)*(x-X0_TIR)+Y0_TIR; _94|^
f2=k4(i)*(x-r)+r*cot(a_TIR(i));
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f=f1-f2; O/^7TBTn<r
x=double(solve(f));y=k3(i)*(x-X0_TIR)+Y0_TIR; _tZT
X0_TIR=x;Y0_TIR=y; 'rJkxU{
Px_TIR(i)=X0_TIR;Py_TIR(i)=Y0_TIR; "nX L7N0
end `}gjfu -'\
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% The furth Step:Fitting the curve >Ha tb bA
P_Core=polyfit(Px_Core,Py_Core,4); Hu|;cbK
P_TIR=polyfit(Px_TIR,Py_TIR,4); n7`R+4/s
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% The fifth Step:Feedback chief dimensions of the lens and Create it dEU +\NY
%Feedback dimensions of the whole lens EnXNTat})
result='透镜尺寸如下：' V3WHp'1
Diameter_of_lens=2*Px_TIR(num_TIR) [psW+3{bG
Thickness_of_lens=Py_TIR(num_TIR)+d (J8 (_MF
Diameter_of_Core=2*r 'Z#8]YP`
Thickness_of_front_pannel=d /t`s.!k
Bottom_thickness=R-r @K; 4'b~
Lowest_Core=P_Core(5) oJJ2y
Sw<@u+Z;%
%Feedback dimensions of Lens part TIR 6@?4z
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result='TIR系数如下：' H%`Ja('"p
Thickness=Py_TIR(num_TIR)-P_TIR(5)+d L.XGD|m
Aperture=Px_TIR(num_TIR) s^F6sXhyPi
Obstruction=r Md_S};!QN6
Position=P_TIR(5) 4(>|f_$
format short e; _NQMi4 V(
Aspheric=[P_TIR(4) P_TIR(3) P_TIR(2) P_TIR(1)] wP.b2X_V
format short; &U%AV D[
hnag <=
%DDE Connection SW|{ )L,
TP_COMMAND = ddeinit('TracePro','Scheme'); [+EmV >Y
%Create TIR XnmQp)nyV
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)))']; cl
kL)7RQ
ddeexec(TP_COMMAND,cmd); #?8dInu>
cmd =['(entity:move TIR 0 0 -2.3712)']; f0+)%gO{
ddeexec(TP_COMMAND,cmd); !t/I
j ~o
cmd =['(property:apply-name TIR "TIR")']; {/SU fXq
ddeexec(TP_COMMAND,cmd);
1+|s
aI]EwVz-q
%Feedback dimensions of Lens part TIR EY Ni`
result='Core系数如下：' ygoA/*s
Thickness=Py_TIR(num_TIR)-P_Core(5)+d ?5(Cwy ?
Aperture=r OKs1irt5
Obstruction='None' t]LOBy-Kv
Position=P_Core(5) P%M Yr"<$E
format short e; X6I"&yct
Aspheric=[P_Core(4) P_Core(3) P_Core(2) P_Core(1)] *@`Sx' 5!
format short; j4h6p(w{
%Create Core P%w)*);
cmd =['(define Core (insert:lens-element "PLASTIC" "pmma" (list 0 0 -2.6211e-002 1.9124e-001 -1.7949e-002 2.8016e-004) 10.3569 (list 0 0)(list "cir" 3.2500 0 0 0)))']; ]E/^(T-O
ddeexec(TP_COMMAND,cmd); .}
al s
cmd =['(entity:move Core 0 0 5.9493)']; .d{@`^dh1]
ddeexec(TP_COMMAND,cmd); qzD<_ynA
cmd =['(property:apply-name Core "Core")']; ~JhH ,E
ddeexec(TP_COMMAND,cmd); h= tzG KI
jroR 2*
%Create Lens z2'3P{#s
cmd =['(define Unite (bool:unite TIR Core))']; ,*_=w^;Rr
ddeexec(TP_COMMAND,cmd); /BEE.`6yI5
cmd =['(define block (insert:block 100 100 100))']; A=8%2U wI
ddeexec(TP_COMMAND,cmd); oPP`)b$x
cmd =['(entity:move block 0 0 -50)']; -\=s+n_ZP?
ddeexec(TP_COMMAND,cmd); }7)iLfi
cmd =['(define Lens (bool:subtract Unite block))']; w)}' {]P"c
ddeexec(TP_COMMAND,cmd); L\;n[, .
cmd =['(property:apply-name Lens "Lens")']; I Z?+c@ t
ddeexec(TP_COMMAND,cmd); )LOV)z|}
b ]A9$-
%Close the DDE connection hO8~Rg
ddeterm(TP_COMMAND); <5).(MTa
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看看吧
