| liunian |
2016-07-13 15:19 |
程序如下： %&q}5Y4!
% By Ruibin 08-9-25 {];-b0MS~
% Instruction：This program help design LED collimating lens , feedback aspheric parameters and several chief dimensions. Z_ Y'#5o#
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clear all;clc uU^i Y$w
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% The Frist Step: Define independent parameters ^Xu4N"@
r=3.25; %选择开孔半径 * -{|m1P
R=4.25; %定义曲面底部半径
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d=1; %设置透镜前方平板高度 ;-;lM 6zP
n=1.4935; %定义材料折射率 ,LxkdV
dividing_angle=24; %定义Core与TIR的分界角 BBv+*jj
min_angle=1; %设置计算精度 =)gdxywoC
N=4; %设定拟合非球面系数阶数 z0 #2?o
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% The Second Step：Caculate induced variable %O<8H7e)V
angles_Core=(dividing_angle:-min_angle:0);angles_TIR=(90:-min_angle:dividing_angle); siT`O
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num_Core=length(angles_Core);num_TIR=length(angles_TIR); M]/DKo
for i=1:(num_Core) I3d}DpPx%
a_Core(i)=(angles_Core(i)*pi/180); ?( z"U b]
k1(i)=cot(a_Core(i)); Kr `/sWZ
k2(i)=(-k1(i)+(n^2*k1(i)^2+n^2)^(1/2))/(n^2*k1(i)^2-k1(i)^2+n^2); 5Dz$_2o M3
end a(ITv roM/
k1(num_Core)=999;k2(num_Core)=0; %\n|2*r
for i=1:num_TIR As`=K$^Il.
a_TIR(i)=(angles_TIR(i)*pi/180); 5Z5x\CcC3
k3(i)=tan((pi/2+asin(cos(a_TIR(i))/n))/2); L[,19 ; (
k4(i)=tan(asin(cos(a_TIR(i))/n)); cD E5/!
end {<Gp5j
X0_TIR=R;X0_Core=r;Y0_TIR=0;Y0_Core=r*cot(a_Core(1)); BenyA:W"
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% The Third Step:Solve functions v\@RwtP
for i=1:num_Core %Solve the curve of Core eF9GhwE=
syms x; SY%y *6[6
f1=k1(i)*x; 85;bJfY
f2=k2(i)*(x-X0_Core)+Y0_Core; Y$]zba
f=f1-f2; NY. * S6
x=double(solve(f));y=k1(i)*x; Gn_DIFa
X0_Core=x;Y0_Core=y; w`V6vYd@
Px_Core(i)=X0_Core;Py_Core(i)=Y0_Core; +}a(jO
end j%^4
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for i=1:num_TIR %Solve the curve of TIR v+W'0ymbnV
syms x; :zLf~ W
f1=k3(i)*(x-X0_TIR)+Y0_TIR; #jW=K&;
f2=k4(i)*(x-r)+r*cot(a_TIR(i)); \=bKuP(it
f=f1-f2; nPqpat`E
x=double(solve(f));y=k3(i)*(x-X0_TIR)+Y0_TIR; 6$'*MpYF4
X0_TIR=x;Y0_TIR=y; k0K$OX*:e
Px_TIR(i)=X0_TIR;Py_TIR(i)=Y0_TIR; $?bD55
end %A=/(%T>
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% The furth Step:Fitting the curve q!@!eC[b
P_Core=polyfit(Px_Core,Py_Core,4); ]a4+] vLK
P_TIR=polyfit(Px_TIR,Py_TIR,4); Ve&_NVPrd
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% The fifth Step:Feedback chief dimensions of the lens and Create it }^ ,D~b-nB
%Feedback dimensions of the whole lens 6[c|14l
result='透镜尺寸如下：' bvB', yBZ
Diameter_of_lens=2*Px_TIR(num_TIR) e5P9P%1w
Thickness_of_lens=Py_TIR(num_TIR)+d J ~3m7
Diameter_of_Core=2*r ,_B n{T=U
Thickness_of_front_pannel=d ( I#6!Yt9J
Bottom_thickness=R-r c e}A!v
Lowest_Core=P_Core(5) H>+])~#
, 6X;YY
%Feedback dimensions of Lens part TIR }9fch9>Zr
result='TIR系数如下：' M K)}zjw
Thickness=Py_TIR(num_TIR)-P_TIR(5)+d \&;y:4&l8
Aperture=Px_TIR(num_TIR) cK u[ 4D{
Obstruction=r "8ellKh
Position=P_TIR(5) 1ruI+ +P
format short e; h%ys: :\zF
Aspheric=[P_TIR(4) P_TIR(3) P_TIR(2) P_TIR(1)] c&',# .9
format short; L'? aoR j
,.cR @5qI
%DDE Connection BO w[*hM
TP_COMMAND = ddeinit('TracePro','Scheme'); >{tn2Fkg>
%Create TIR qpYgTn8l7
cmd =['(define TIR (insert:lens-element "PLASTIC" "pmma" (list 0 0 7.0306e-002 1.2580e-001 -2.5732e-003 -2.5281e-006) 18.6774 (list 0 0)(list "cir" 13.6051 0 0 0)(list "cir" 3.25 0 0 0)))']; sIg TSdk
ddeexec(TP_COMMAND,cmd); : #CWiq("%
cmd =['(entity:move TIR 0 0 -2.3712)']; Pg(Y}Tu
ddeexec(TP_COMMAND,cmd); `@],J
cmd =['(property:apply-name TIR "TIR")']; 9]oT/ooM
ddeexec(TP_COMMAND,cmd); A+* lV*@0
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%Feedback dimensions of Lens part TIR Yr_ B (n
result='Core系数如下：' D5@=#/?*
Thickness=Py_TIR(num_TIR)-P_Core(5)+d @ tm2Y%Y!
Aperture=r A_wf_.l4h
Obstruction='None' l _Lz9k
Position=P_Core(5) /-[vC$B"
format short e; uhfK \.3
Aspheric=[P_Core(4) P_Core(3) P_Core(2) P_Core(1)] u0&R*YV
format short; 9u{[e"
%Create Core | kPgXq6
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)))']; %Tp
k1
ddeexec(TP_COMMAND,cmd); v.Bwg 7R3
cmd =['(entity:move Core 0 0 5.9493)']; 9S@x
ddeexec(TP_COMMAND,cmd); w!6 {{m
cmd =['(property:apply-name Core "Core")']; y,x 2f%x
ddeexec(TP_COMMAND,cmd); !<:Cd(bM
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%Create Lens [#uhMn^
cmd =['(define Unite (bool:unite TIR Core))']; C`i#7zsH
ddeexec(TP_COMMAND,cmd); 6LCtWX
cmd =['(define block (insert:block 100 100 100))']; 9m$"B*&6G
ddeexec(TP_COMMAND,cmd); t;w<n"
cmd =['(entity:move block 0 0 -50)']; Ba m.B6-
ddeexec(TP_COMMAND,cmd); L?N&k zA
cmd =['(define Lens (bool:subtract Unite block))']; O~V^]
ddeexec(TP_COMMAND,cmd); K-TsSW$}
cmd =['(property:apply-name Lens "Lens")']; x;u#ec4
ddeexec(TP_COMMAND,cmd); SqPqL<,e
%lnkD5
%Close the DDE connection \{ EVRRXn
ddeterm(TP_COMMAND); $\J5l$tU
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看看吧
