| liunian |
2016-07-13 15:19 |
程序如下： w+($= n~
% By Ruibin 08-9-25 cNOtfn6?F
% Instruction：This program help design LED collimating lens , feedback aspheric parameters and several chief dimensions. "NWILZwE V
Is57)( ^.-
clear all;clc 8T-/G9u
&y_Ya%Z3*e
% The Frist Step: Define independent parameters tqbYrF)
r=3.25; %选择开孔半径 a|S6r-_;s
R=4.25; %定义曲面底部半径 VZF;
d=1; %设置透镜前方平板高度 ;+C2P@M
n=1.4935; %定义材料折射率 F#NuZ'U
dividing_angle=24; %定义Core与TIR的分界角 m ' HAt ~
min_angle=1; %设置计算精度 uIh68UM
N=4; %设定拟合非球面系数阶数 cH>@ZFTF
69< <pm,m
% The Second Step：Caculate induced variable hvW FzT5
angles_Core=(dividing_angle:-min_angle:0);angles_TIR=(90:-min_angle:dividing_angle); T P3KT)
num_Core=length(angles_Core);num_TIR=length(angles_TIR); D] tI's1
for i=1:(num_Core) jEh Px
a_Core(i)=(angles_Core(i)*pi/180); k4T`{s}e
k1(i)=cot(a_Core(i)); f[1 s4Dp3-
k2(i)=(-k1(i)+(n^2*k1(i)^2+n^2)^(1/2))/(n^2*k1(i)^2-k1(i)^2+n^2); ^Mvgm3hg
end {0L.,T~g+[
k1(num_Core)=999;k2(num_Core)=0; z H| YVg
for i=1:num_TIR R ?62g H
a_TIR(i)=(angles_TIR(i)*pi/180); Mbm'cM&}
k3(i)=tan((pi/2+asin(cos(a_TIR(i))/n))/2); '`+8'3K~E
k4(i)=tan(asin(cos(a_TIR(i))/n)); 1FA:"0lO
end kB[l6`
X0_TIR=R;X0_Core=r;Y0_TIR=0;Y0_Core=r*cot(a_Core(1)); d)>b/0CZ
& ci;0P#Q
% The Third Step:Solve functions 3ch<a0
for i=1:num_Core %Solve the curve of Core ~#MXhhqB
syms x; mY= Q#nG
f1=k1(i)*x; 8yCt(ms
f2=k2(i)*(x-X0_Core)+Y0_Core; (jmF7XfU
f=f1-f2; N =T 0Td
x=double(solve(f));y=k1(i)*x; Uc%kyT Bm1
X0_Core=x;Y0_Core=y; 1VKu3
Px_Core(i)=X0_Core;Py_Core(i)=Y0_Core; ~V t?'v20@
end )&6ZgRq
for i=1:num_TIR %Solve the curve of TIR po9f[/s'+o
syms x; 1S+lHG92I
f1=k3(i)*(x-X0_TIR)+Y0_TIR; ]A&pX AM
f2=k4(i)*(x-r)+r*cot(a_TIR(i)); \X2r?
f=f1-f2; x$hT+z6DUC
x=double(solve(f));y=k3(i)*(x-X0_TIR)+Y0_TIR; N?EeT}m _
X0_TIR=x;Y0_TIR=y; sEymwpm9
Px_TIR(i)=X0_TIR;Py_TIR(i)=Y0_TIR; 6n A/LW\x
end 3d`u! i?/
u']}Z% A9`
% The furth Step:Fitting the curve m)l'i!Y
P_Core=polyfit(Px_Core,Py_Core,4); \/ s0 p
P_TIR=polyfit(Px_TIR,Py_TIR,4); XjXz#0nR
nV:RL|p2jw
% The fifth Step:Feedback chief dimensions of the lens and Create it t
i&!_
%Feedback dimensions of the whole lens RNo~ }#
result='透镜尺寸如下：' sTS/ ]"l
Diameter_of_lens=2*Px_TIR(num_TIR) :\Q#W4~p
Thickness_of_lens=Py_TIR(num_TIR)+d :i3
W U%
Diameter_of_Core=2*r b+`qGJrej
Thickness_of_front_pannel=d 8'PK}heBU
Bottom_thickness=R-r w2SN=X~#
Lowest_Core=P_Core(5) h_HPmh5
2kcDJ{(
%Feedback dimensions of Lens part TIR u!-v1O^[
result='TIR系数如下：' Q h{P>}
Thickness=Py_TIR(num_TIR)-P_TIR(5)+d z3c7
Aperture=Px_TIR(num_TIR) gNJdP!(t
Obstruction=r ] JR2Av
Position=P_TIR(5) y?V^S;}&]
format short e; s<+;5, Q|
Aspheric=[P_TIR(4) P_TIR(3) P_TIR(2) P_TIR(1)] *X5<]{7c
format short; ^[&,MQU{7
!k Heslvi
%DDE Connection Hqtv`3g
TP_COMMAND = ddeinit('TracePro','Scheme'); s d9b9?qiu
%Create TIR "l{{H&d
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)))']; Cg(&WJw(ep
ddeexec(TP_COMMAND,cmd); 4,0 8`5{
cmd =['(entity:move TIR 0 0 -2.3712)']; Y P,>vzW
ddeexec(TP_COMMAND,cmd); fK _uuw4
cmd =['(property:apply-name TIR "TIR")']; *xjP^y":
ddeexec(TP_COMMAND,cmd); lc 3N i<3v
@\r2%M-
%Feedback dimensions of Lens part TIR ;F_P<b 2
result='Core系数如下：' GExr] 2r
Thickness=Py_TIR(num_TIR)-P_Core(5)+d o%!s/Z1
Aperture=r erKi*GssZ
Obstruction='None' -'F 27])
Position=P_Core(5) R^mkQb>m.
format short e; /'/i? 9:
Aspheric=[P_Core(4) P_Core(3) P_Core(2) P_Core(1)] ({zWyl
format short; 6L;]5)#
%Create Core jgiS/oW
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)))']; gA`QV''/:
ddeexec(TP_COMMAND,cmd); Gr >CdB>~+
cmd =['(entity:move Core 0 0 5.9493)']; M0g=gmau
ddeexec(TP_COMMAND,cmd); I$ R1#s
cmd =['(property:apply-name Core "Core")']; XG! 6[o;
ddeexec(TP_COMMAND,cmd); mo+!7 9&
`v-O 4Pk
%Create Lens ]9PG"<^k
cmd =['(define Unite (bool:unite TIR Core))']; $o0.oY#
ddeexec(TP_COMMAND,cmd); E0x\h<6W~
cmd =['(define block (insert:block 100 100 100))']; ,!, tU7-H
ddeexec(TP_COMMAND,cmd); l,~`o$ _
cmd =['(entity:move block 0 0 -50)']; Z- t&AH
ddeexec(TP_COMMAND,cmd); B&7NF}CF2
cmd =['(define Lens (bool:subtract Unite block))']; -k@1# c+z
ddeexec(TP_COMMAND,cmd); 6{{<+
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cmd =['(property:apply-name Lens "Lens")']; %|%eGidu
ddeexec(TP_COMMAND,cmd); 6i%6u=um3
Y9g w
('\w
%Close the DDE connection ;l1.jQh
ddeterm(TP_COMMAND); WN ZYs
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