| liunian |
2016-07-13 15:19 |
程序如下： r--;yEjWE
% By Ruibin 08-9-25 Lzz) n%y5
% Instruction：This program help design LED collimating lens , feedback aspheric parameters and several chief dimensions. /RqhykgZ
HamEIL-l.
clear all;clc pL) xqKj
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% The Frist Step: Define independent parameters Bk@ WW#b
r=3.25; %选择开孔半径 # TATqzA
R=4.25; %定义曲面底部半径 n^Vxi;F
d=1; %设置透镜前方平板高度 "Z~`e ]>
n=1.4935; %定义材料折射率 a2X h>{
dividing_angle=24; %定义Core与TIR的分界角 Fx5ZwT
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min_angle=1; %设置计算精度 oZ-FF'
N=4; %设定拟合非球面系数阶数 M')bHB(~v
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% The Second Step：Caculate induced variable 3 Ta>Ki
angles_Core=(dividing_angle:-min_angle:0);angles_TIR=(90:-min_angle:dividing_angle); A8!Ed$@
num_Core=length(angles_Core);num_TIR=length(angles_TIR); r{Z[xWIX
for i=1:(num_Core) %YCd%lAe,
a_Core(i)=(angles_Core(i)*pi/180); uS-3\$
k1(i)=cot(a_Core(i)); T<M?Pl ED
k2(i)=(-k1(i)+(n^2*k1(i)^2+n^2)^(1/2))/(n^2*k1(i)^2-k1(i)^2+n^2); gn`zy9PU
end "& Mou
k1(num_Core)=999;k2(num_Core)=0; -ek1$y9)
for i=1:num_TIR ob]dZ
a_TIR(i)=(angles_TIR(i)*pi/180); ?@3&dk~ni
k3(i)=tan((pi/2+asin(cos(a_TIR(i))/n))/2); !&JiNn('
k4(i)=tan(asin(cos(a_TIR(i))/n)); ]738Z /)^
end B kV(81"C
X0_TIR=R;X0_Core=r;Y0_TIR=0;Y0_Core=r*cot(a_Core(1)); H+R7X71{
[ro t
% The Third Step:Solve functions !EM#m@kZ{
for i=1:num_Core %Solve the curve of Core "Y(^F
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syms x; 3 &9zGy{V+
f1=k1(i)*x; kXEtuO5FUM
f2=k2(i)*(x-X0_Core)+Y0_Core; $`v+4]
f=f1-f2; 'z-D%sCA
x=double(solve(f));y=k1(i)*x; _25d %Ne0
X0_Core=x;Y0_Core=y; UM`nq;>
Px_Core(i)=X0_Core;Py_Core(i)=Y0_Core; ctK65h{Eo
end V4EM5 Z\k
for i=1:num_TIR %Solve the curve of TIR eQ\jZ0s;p
syms x; #]X2^ND4 7
f1=k3(i)*(x-X0_TIR)+Y0_TIR; QXB|!'
f2=k4(i)*(x-r)+r*cot(a_TIR(i)); /W0E(8:C)
f=f1-f2; .<dOED{v
x=double(solve(f));y=k3(i)*(x-X0_TIR)+Y0_TIR; $W*|~}F/Ap
X0_TIR=x;Y0_TIR=y; 5}7ISNP;f
Px_TIR(i)=X0_TIR;Py_TIR(i)=Y0_TIR; ,02w@we5
end 6+)x7g1PL
qPUA!-'
% The furth Step:Fitting the curve kXMP =j8
P_Core=polyfit(Px_Core,Py_Core,4); 5Edo%Hd6
P_TIR=polyfit(Px_TIR,Py_TIR,4); ke^d8Z.
}\VX^{ K j
% The fifth Step:Feedback chief dimensions of the lens and Create it ,m3":{G:t.
%Feedback dimensions of the whole lens c(E,&{+E
result='透镜尺寸如下：' . v\PilF
Diameter_of_lens=2*Px_TIR(num_TIR) }>,CUz
Thickness_of_lens=Py_TIR(num_TIR)+d L&'l3|
Diameter_of_Core=2*r KD=bkZ&
Thickness_of_front_pannel=d ?^F5(B[+Y
Bottom_thickness=R-r 'QnW9EHL F
Lowest_Core=P_Core(5) BtID;^D z
c(CJ{>F%
%Feedback dimensions of Lens part TIR L W ?&a3e
result='TIR系数如下：' ?eVj8 $BQo
Thickness=Py_TIR(num_TIR)-P_TIR(5)+d Pf k{ =y
Aperture=Px_TIR(num_TIR) pkW5D
Obstruction=r h&P
{p _Y
Position=P_TIR(5) X+%u(>>
format short e; M_; w %FV
Aspheric=[P_TIR(4) P_TIR(3) P_TIR(2) P_TIR(1)] q}e]*]dJZ
format short; "\<P$&`HA
oAaf)?8
%DDE Connection G\):2Qz!|
TP_COMMAND = ddeinit('TracePro','Scheme'); :cb[M5c
%Create TIR v?}pi
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)))']; ho_4fDv
ddeexec(TP_COMMAND,cmd); ^^eV4Y5`+
cmd =['(entity:move TIR 0 0 -2.3712)']; Bqp&2zg)@
ddeexec(TP_COMMAND,cmd); `; e^2
cmd =['(property:apply-name TIR "TIR")']; 5c)<'EP
ddeexec(TP_COMMAND,cmd); r X:1_q`xA
ff[C'
%Feedback dimensions of Lens part TIR zG<0CZQ8
result='Core系数如下：' TRo4I{L6S
Thickness=Py_TIR(num_TIR)-P_Core(5)+d zaBG=
Aperture=r &jFKc0\i@
Obstruction='None' E:: <; 9
Position=P_Core(5) pb6 Q?QG,
format short e; '/dTqg*W
Aspheric=[P_Core(4) P_Core(3) P_Core(2) P_Core(1)] I IYL A(
format short; y6\ [1nZ
%Create Core bYK]G+Ww
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)))']; Ae.]F)w_\
ddeexec(TP_COMMAND,cmd); LK{a9`
h
cmd =['(entity:move Core 0 0 5.9493)']; (%.</|u
ddeexec(TP_COMMAND,cmd); Ty.drM
cmd =['(property:apply-name Core "Core")']; ]2P/G5C3tU
ddeexec(TP_COMMAND,cmd); `TOX1cmw
wqf& i^_
%Create Lens <e[!3,%L
cmd =['(define Unite (bool:unite TIR Core))']; 8dl Inms
ddeexec(TP_COMMAND,cmd); I51M}b, [d
cmd =['(define block (insert:block 100 100 100))']; ]yw_n^@
ddeexec(TP_COMMAND,cmd); [ O [FCn
cmd =['(entity:move block 0 0 -50)']; rpx 0|{m
ddeexec(TP_COMMAND,cmd); k -io$
cmd =['(define Lens (bool:subtract Unite block))']; 1 iquHn
ddeexec(TP_COMMAND,cmd); .\)--+(
cmd =['(property:apply-name Lens "Lens")']; JE /l#Q!
ddeexec(TP_COMMAND,cmd); e K\| SQb
9DmSs =A
%Close the DDE connection V2lp7"
ddeterm(TP_COMMAND); 1`nc8qC
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看看吧
