| liunian |
2016-07-13 15:19 |
程序如下： vj]h[=:
% By Ruibin 08-9-25 B WB}bq
% Instruction：This program help design LED collimating lens , feedback aspheric parameters and several chief dimensions. BxZ7Bk
8 @RJ>
clear all;clc SwaPRAF
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% The Frist Step: Define independent parameters q!~DCv df
r=3.25; %选择开孔半径 V ZtFgN$J
R=4.25; %定义曲面底部半径 $D D esy3
d=1; %设置透镜前方平板高度 $Zkk14
n=1.4935; %定义材料折射率 02,.UqCz
dividing_angle=24; %定义Core与TIR的分界角 ]v?jfy
min_angle=1; %设置计算精度 " " _B3'
N=4; %设定拟合非球面系数阶数 > p" U|
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% The Second Step：Caculate induced variable 4X+I2CD
angles_Core=(dividing_angle:-min_angle:0);angles_TIR=(90:-min_angle:dividing_angle); %% )y4>I
num_Core=length(angles_Core);num_TIR=length(angles_TIR); v!$?;"d+
for i=1:(num_Core) !\O!Du
a_Core(i)=(angles_Core(i)*pi/180); TmM~uc7mj
k1(i)=cot(a_Core(i)); mgM"u94-]
k2(i)=(-k1(i)+(n^2*k1(i)^2+n^2)^(1/2))/(n^2*k1(i)^2-k1(i)^2+n^2); 4I| pkdF_
end ;d_<6|*M
k1(num_Core)=999;k2(num_Core)=0; 6s
~!B {Q
for i=1:num_TIR nV`W0 r(f'
a_TIR(i)=(angles_TIR(i)*pi/180); "CREls,
k3(i)=tan((pi/2+asin(cos(a_TIR(i))/n))/2); JZE@W -2
k4(i)=tan(asin(cos(a_TIR(i))/n)); \w(0k^<7
end wb h=v;
X0_TIR=R;X0_Core=r;Y0_TIR=0;Y0_Core=r*cot(a_Core(1)); Wt=@6 w&
d\tY-X3
% The Third Step:Solve functions G%=
gCR
for i=1:num_Core %Solve the curve of Core ` K0PLxSv
syms x; GCv1x->
f1=k1(i)*x;
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f2=k2(i)*(x-X0_Core)+Y0_Core; rw 0s$~'
f=f1-f2; W"CG&.
x=double(solve(f));y=k1(i)*x; `R -?+76?
X0_Core=x;Y0_Core=y; V7O7"Q^q
Px_Core(i)=X0_Core;Py_Core(i)=Y0_Core; Np+pJ c1
end "V`DhOG&
for i=1:num_TIR %Solve the curve of TIR pK"Z9y&
syms x; UN:qE oS
f1=k3(i)*(x-X0_TIR)+Y0_TIR; e#k)F.TZ:%
f2=k4(i)*(x-r)+r*cot(a_TIR(i)); {K?e6-N(z
f=f1-f2; ?8U]UM6Tu4
x=double(solve(f));y=k3(i)*(x-X0_TIR)+Y0_TIR; A4b+:MQ*OX
X0_TIR=x;Y0_TIR=y; oL<5hN*D
Px_TIR(i)=X0_TIR;Py_TIR(i)=Y0_TIR; 3"k n5)x
end {LCKt/Z>P
UIS siiG(
% The furth Step:Fitting the curve "}H2dn2n
P_Core=polyfit(Px_Core,Py_Core,4); bk a%W@Y %
P_TIR=polyfit(Px_TIR,Py_TIR,4); v-Q> I5D;:
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% The fifth Step:Feedback chief dimensions of the lens and Create it *& R|0I{>
%Feedback dimensions of the whole lens {MDM= ;WP_
result='透镜尺寸如下：' B7.&yXWg n
Diameter_of_lens=2*Px_TIR(num_TIR) <E^;RG
Thickness_of_lens=Py_TIR(num_TIR)+d _9R j,
Diameter_of_Core=2*r H\9ePo\b~
Thickness_of_front_pannel=d GZY:EHuz[
Bottom_thickness=R-r 3*(><<ZC
Lowest_Core=P_Core(5) t=s.w(3t
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%Feedback dimensions of Lens part TIR I9`ZK2S
result='TIR系数如下：' !67xN?b
Thickness=Py_TIR(num_TIR)-P_TIR(5)+d imhE=6{
Aperture=Px_TIR(num_TIR) h]&~yuI>
Obstruction=r t}OzF cyqN
Position=P_TIR(5) h|lH`m^
format short e; /V#? d
Aspheric=[P_TIR(4) P_TIR(3) P_TIR(2) P_TIR(1)] R|Uu
format short; y-gXGvZ
/WK1( B:
%DDE Connection RUVrX`u*(
TP_COMMAND = ddeinit('TracePro','Scheme'); g@Y]$ey%A
%Create TIR D>Rlm,U
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)))']; ]&P 4QT)f
ddeexec(TP_COMMAND,cmd); {/>uc,8O
cmd =['(entity:move TIR 0 0 -2.3712)']; %,aSD#l`f
ddeexec(TP_COMMAND,cmd); *m`x/_y +
cmd =['(property:apply-name TIR "TIR")']; 'R42N3|F
ddeexec(TP_COMMAND,cmd); HYY+Fv5
%5@>
nC?`[
%Feedback dimensions of Lens part TIR (*V!V3E3#
result='Core系数如下：' Ag8lI+
h
Thickness=Py_TIR(num_TIR)-P_Core(5)+d !:tr\L {
Aperture=r _?$w8 S%
Obstruction='None' hPCSAo!|
Position=P_Core(5) 2t>>08T
format short e; IH5^M74b
Aspheric=[P_Core(4) P_Core(3) P_Core(2) P_Core(1)] Xf
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format short; X gtn}7N.
%Create Core B[+b%a3
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)))']; OqmW lN.?
ddeexec(TP_COMMAND,cmd); pigu]mj
cmd =['(entity:move Core 0 0 5.9493)']; 1' dZ?` O
ddeexec(TP_COMMAND,cmd); &4l !2
cmd =['(property:apply-name Core "Core")']; &SPr#OkW
ddeexec(TP_COMMAND,cmd); `A o"fRv#
wgq=9\+&
%Create Lens wjT#D|soI
cmd =['(define Unite (bool:unite TIR Core))']; \]\ h ,Y8
ddeexec(TP_COMMAND,cmd); lE8_Q *ev
cmd =['(define block (insert:block 100 100 100))']; 7_rDNK@e
ddeexec(TP_COMMAND,cmd); ,Z7Ky*<j
cmd =['(entity:move block 0 0 -50)']; AgUjC
ddeexec(TP_COMMAND,cmd); rL?{+S]&^)
cmd =['(define Lens (bool:subtract Unite block))']; #BZ5Mxzj
ddeexec(TP_COMMAND,cmd); P4c}@Mq3
cmd =['(property:apply-name Lens "Lens")']; .SSPJY(
ddeexec(TP_COMMAND,cmd); .G"T;w 6d
HW" 5MZ8E
%Close the DDE connection PQz[IZ
ddeterm(TP_COMMAND); v3kT~uv
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看看吧
