| liunian |
2016-07-13 15:19 |
程序如下： / Mo d=/e
% By Ruibin 08-9-25 gF[6c`-s
% Instruction：This program help design LED collimating lens , feedback aspheric parameters and several chief dimensions. `l/:NF
R-pH Quu3
clear all;clc 4.|-m.a
Wp5]U k
% The Frist Step: Define independent parameters e&QS#k
r=3.25; %选择开孔半径 [ $l"-*s4
R=4.25; %定义曲面底部半径 6F`qi: a+
d=1; %设置透镜前方平板高度 Yb[n{.%/g
n=1.4935; %定义材料折射率 TMJ9~"IO
dividing_angle=24; %定义Core与TIR的分界角 fc R j
min_angle=1; %设置计算精度 '{[!j6wt\
N=4; %设定拟合非球面系数阶数 s`hav
S _!h sY
% The Second Step：Caculate induced variable ~G>jw"r
angles_Core=(dividing_angle:-min_angle:0);angles_TIR=(90:-min_angle:dividing_angle); HU &)
num_Core=length(angles_Core);num_TIR=length(angles_TIR); yl-fbYH
for i=1:(num_Core) =}JBA>q(
a_Core(i)=(angles_Core(i)*pi/180); 2sKG( ^=Z
k1(i)=cot(a_Core(i)); =m}TU)4.
k2(i)=(-k1(i)+(n^2*k1(i)^2+n^2)^(1/2))/(n^2*k1(i)^2-k1(i)^2+n^2); k(P3LJcYQ
end Q|Pbt(44
k1(num_Core)=999;k2(num_Core)=0; -(* nSD 9
for i=1:num_TIR g96 T*T
a_TIR(i)=(angles_TIR(i)*pi/180); 3AURzU
k3(i)=tan((pi/2+asin(cos(a_TIR(i))/n))/2); #?9 Q{0e
k4(i)=tan(asin(cos(a_TIR(i))/n)); Xv0F:1
end (w+%=z"M
X0_TIR=R;X0_Core=r;Y0_TIR=0;Y0_Core=r*cot(a_Core(1)); kMy<G8 s
@(-yr U
% The Third Step:Solve functions 9\ v.qo.
for i=1:num_Core %Solve the curve of Core x;u ~NKy
syms x; 1otspOy
f1=k1(i)*x; 14 H'!$
f2=k2(i)*(x-X0_Core)+Y0_Core; vMhYpt?7\
f=f1-f2; tBseqS3<
x=double(solve(f));y=k1(i)*x; lop uf/U0
X0_Core=x;Y0_Core=y; *g1 L$FBG
Px_Core(i)=X0_Core;Py_Core(i)=Y0_Core; $A`xhh[
end QY@u}&m%o
for i=1:num_TIR %Solve the curve of TIR B7 HQR{t
syms x; pI>*u ]x
f1=k3(i)*(x-X0_TIR)+Y0_TIR; %M9;I
f2=k4(i)*(x-r)+r*cot(a_TIR(i)); KA ed!z9
f=f1-f2; FI{AZ b_'
x=double(solve(f));y=k3(i)*(x-X0_TIR)+Y0_TIR; 66Gx .tE
X0_TIR=x;Y0_TIR=y; UfR~%p>K
Px_TIR(i)=X0_TIR;Py_TIR(i)=Y0_TIR; @`w n<%o$
end qD-fw-,:
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% The furth Step:Fitting the curve DLi?'K3t
P_Core=polyfit(Px_Core,Py_Core,4); uEx9-,!
P_TIR=polyfit(Px_TIR,Py_TIR,4); %c X"#+e
+ I5 2EXo
% The fifth Step:Feedback chief dimensions of the lens and Create it F$Q04Qw
%Feedback dimensions of the whole lens !
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result='透镜尺寸如下：' JrDHRIkgm
Diameter_of_lens=2*Px_TIR(num_TIR) Nb;H`<JP
Thickness_of_lens=Py_TIR(num_TIR)+d ',ZF5T5z@
Diameter_of_Core=2*r FLZS K:3B]
Thickness_of_front_pannel=d ^s{hs(8%R
Bottom_thickness=R-r Q[PK`*2)
Lowest_Core=P_Core(5) /L&M,OUcr.
Hx
%$ X
%Feedback dimensions of Lens part TIR ^e%}[q[>|
result='TIR系数如下：' "MnSJ 2
Thickness=Py_TIR(num_TIR)-P_TIR(5)+d dl0FQNz8@B
Aperture=Px_TIR(num_TIR) h^oH^moq<
Obstruction=r %d; <2b0
Position=P_TIR(5) k4{:9zL1#?
format short e; YEv
Lhh
Aspheric=[P_TIR(4) P_TIR(3) P_TIR(2) P_TIR(1)] 8>N wCjN
format short; PKf:O
>A}0Ho
%DDE Connection 51 b y
TP_COMMAND = ddeinit('TracePro','Scheme'); ^.go O]
%Create TIR 5~ +XZA#2
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|qyTeg
ddeexec(TP_COMMAND,cmd); 7I}P*%(f
cmd =['(entity:move TIR 0 0 -2.3712)']; &yIGr` ;
ddeexec(TP_COMMAND,cmd); 30Drrno7Io
cmd =['(property:apply-name TIR "TIR")']; ? \m3~6y
ddeexec(TP_COMMAND,cmd); a1c1k}
?j{C*|yHO
%Feedback dimensions of Lens part TIR kl} Xmw{tJ
result='Core系数如下：' E0 l _--
Thickness=Py_TIR(num_TIR)-P_Core(5)+d 3fr ^ T
Aperture=r >w|*ei:@S
Obstruction='None' gfy19c 9
Position=P_Core(5) S8vV!xO
format short e; idc4Cf+4
Aspheric=[P_Core(4) P_Core(3) P_Core(2) P_Core(1)] ,^$ |R32
format short; ^Q.,\TL01
%Create Core $_D6 _|HK
cmd =['(define Core (insert:lens-element "PLASTIC" "pmma" (list 0 0 -2.6211e-002 1.9124e-001 -1.7949e-002 2.8016e-004) 10.3569 (list 0 0)(list "cir" 3.2500 0 0 0)))']; U BZ9A
ddeexec(TP_COMMAND,cmd); L}%d Ce
cmd =['(entity:move Core 0 0 5.9493)']; x,8<tSW)Z
ddeexec(TP_COMMAND,cmd); S%mfs!E>
cmd =['(property:apply-name Core "Core")']; 86qI
ddeexec(TP_COMMAND,cmd); UM MB0(0D
'g)n1 {
%Create Lens SJ?)%[(T
cmd =['(define Unite (bool:unite TIR Core))']; E167=BD9<
ddeexec(TP_COMMAND,cmd); ^G1%6\We
cmd =['(define block (insert:block 100 100 100))']; }#`:Qb \U
ddeexec(TP_COMMAND,cmd); h|;qG)f^
cmd =['(entity:move block 0 0 -50)']; .Zmp ,
ddeexec(TP_COMMAND,cmd); pyZ9OA!PD
cmd =['(define Lens (bool:subtract Unite block))']; _\8qwDg"#e
ddeexec(TP_COMMAND,cmd); 1(#;&:$`i
cmd =['(property:apply-name Lens "Lens")']; f{&bOF v
ddeexec(TP_COMMAND,cmd); 3 l1cyPv
LT@O WH
%Close the DDE connection SO f{Hx0C6
ddeterm(TP_COMMAND); K^[#] +nQ
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看看吧
