| liunian |
2016-07-13 15:19 |
程序如下： DbYnd%k*4
% By Ruibin 08-9-25 R%`fd *g
% Instruction：This program help design LED collimating lens , feedback aspheric parameters and several chief dimensions. ^- " tK:{
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clear all;clc eZ
7Atu v
#S[Y}-]T
% The Frist Step: Define independent parameters E
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r=3.25; %选择开孔半径 j_z@VT} y
R=4.25; %定义曲面底部半径 4,BJK`{
d=1; %设置透镜前方平板高度 $h5QLN
n=1.4935; %定义材料折射率 t~":'le`zr
dividing_angle=24; %定义Core与TIR的分界角 ``>z8t[ks
min_angle=1; %设置计算精度 L yG`q3@
N=4; %设定拟合非球面系数阶数 U6 YHq2<
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% The Second Step：Caculate induced variable Uz%ynH
angles_Core=(dividing_angle:-min_angle:0);angles_TIR=(90:-min_angle:dividing_angle); ]&tcocq
num_Core=length(angles_Core);num_TIR=length(angles_TIR); CV2#G *
for i=1:(num_Core) .0MY$ 0s
a_Core(i)=(angles_Core(i)*pi/180); %\~U>3Q
k1(i)=cot(a_Core(i)); Oc 5f8uv
k2(i)=(-k1(i)+(n^2*k1(i)^2+n^2)^(1/2))/(n^2*k1(i)^2-k1(i)^2+n^2); VH v L:z
end 46~nwi$,^
k1(num_Core)=999;k2(num_Core)=0; +x<OyjY5?]
for i=1:num_TIR [&(~1C|C
a_TIR(i)=(angles_TIR(i)*pi/180); w}e_ 17A
k3(i)=tan((pi/2+asin(cos(a_TIR(i))/n))/2); D$E#:[
k4(i)=tan(asin(cos(a_TIR(i))/n)); R 83P HM
end \ rKUPI\
X0_TIR=R;X0_Core=r;Y0_TIR=0;Y0_Core=r*cot(a_Core(1)); Vt:\llsin
.kJu17 !
% The Third Step:Solve functions j3u!lZ}U
for i=1:num_Core %Solve the curve of Core _nSEp >]L
syms x; RMdU1@
f1=k1(i)*x; \S{ihS@J
f2=k2(i)*(x-X0_Core)+Y0_Core; *e:2iM)8~
f=f1-f2; q d:"LS
x=double(solve(f));y=k1(i)*x; b;NV vc(
X0_Core=x;Y0_Core=y; q Ll4t/p
Px_Core(i)=X0_Core;Py_Core(i)=Y0_Core; mP?}h
end nG ur2 }>n
for i=1:num_TIR %Solve the curve of TIR ;Zn&Nc7
syms x; uO1^nK
f1=k3(i)*(x-X0_TIR)+Y0_TIR; ZP-9KA$"
f2=k4(i)*(x-r)+r*cot(a_TIR(i)); \tCK 7sB n
f=f1-f2; -OnKvpeI
x=double(solve(f));y=k3(i)*(x-X0_TIR)+Y0_TIR; ?~cO\(TY["
X0_TIR=x;Y0_TIR=y; J/PK #<
Px_TIR(i)=X0_TIR;Py_TIR(i)=Y0_TIR; r$ I k* R
end uA cvUN-@
w4zp%`?D'
% The furth Step:Fitting the curve ~RZN +N
P_Core=polyfit(Px_Core,Py_Core,4); I*/: rb
P_TIR=polyfit(Px_TIR,Py_TIR,4); WcpH= "vm
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% The fifth Step:Feedback chief dimensions of the lens and Create it %4BQY>O)@
%Feedback dimensions of the whole lens ce719n$
result='透镜尺寸如下：' g4;|u K;
Diameter_of_lens=2*Px_TIR(num_TIR) G oPMWbI7
Thickness_of_lens=Py_TIR(num_TIR)+d 0T 0I<t
Diameter_of_Core=2*r fG{ 3S:TQq
Thickness_of_front_pannel=d p0}Yo8? OW
Bottom_thickness=R-r =F dFLrx~l
Lowest_Core=P_Core(5) eKU4"XTk
z]=Ks_7
%Feedback dimensions of Lens part TIR qoW$Iw*q)B
result='TIR系数如下：' ;Rm';IW$
Thickness=Py_TIR(num_TIR)-P_TIR(5)+d ` M-
Aperture=Px_TIR(num_TIR) !>&G+R +k
Obstruction=r gV*4{ d`
Position=P_TIR(5) G=C2l#
Ae!
format short e; $"#M:V @
Aspheric=[P_TIR(4) P_TIR(3) P_TIR(2) P_TIR(1)] KvI /!hl\
format short; S(rnVsW%Ki
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%DDE Connection >4HB~9dKU
TP_COMMAND = ddeinit('TracePro','Scheme'); ]{I >HA5 [
%Create TIR ^ }:0\;|N
cmd =['(define TIR (insert:lens-element "PLASTIC" "pmma" (list 0 0 7.0306e-002 1.2580e-001 -2.5732e-003 -2.5281e-006) 18.6774 (list 0 0)(list "cir" 13.6051 0 0 0)(list "cir" 3.25 0 0 0)))']; YF %] %^n
ddeexec(TP_COMMAND,cmd); zB\ 8<97 C
cmd =['(entity:move TIR 0 0 -2.3712)']; %:dd#';g
ddeexec(TP_COMMAND,cmd); QX_![|=
cmd =['(property:apply-name TIR "TIR")']; e$mVA}>Ybp
ddeexec(TP_COMMAND,cmd); &?']EcU5h9
t*Z-]P
%Feedback dimensions of Lens part TIR er>{#8 P
result='Core系数如下：' Ad -_=a%
Thickness=Py_TIR(num_TIR)-P_Core(5)+d H D,6
Aperture=r h-o;vC9fC
Obstruction='None' ps S^
Position=P_Core(5) 0|4R8Dh*-
format short e; FE#| 5;q.
Aspheric=[P_Core(4) P_Core(3) P_Core(2) P_Core(1)] UA#=K+2
format short; 9yLPh/!Ob
%Create Core @#9x Ss#
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)))']; ol_&epG;ST
ddeexec(TP_COMMAND,cmd); ;zWiPnX}
cmd =['(entity:move Core 0 0 5.9493)']; N Cm=l
ddeexec(TP_COMMAND,cmd); I Efm>N-]
cmd =['(property:apply-name Core "Core")']; qzk]9`i1:
ddeexec(TP_COMMAND,cmd); lHu/pSu@k
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%Create Lens h^J :k
cmd =['(define Unite (bool:unite TIR Core))']; U1kW1L}B
ddeexec(TP_COMMAND,cmd); C ?\HB#41
cmd =['(define block (insert:block 100 100 100))']; %,d+ jBM
ddeexec(TP_COMMAND,cmd); `"$9L[>
cmd =['(entity:move block 0 0 -50)']; wOH 3[SKo
ddeexec(TP_COMMAND,cmd); TdoH(( nY
cmd =['(define Lens (bool:subtract Unite block))']; +ERuZc$3,
ddeexec(TP_COMMAND,cmd); YKx+z[ A/p
cmd =['(property:apply-name Lens "Lens")']; eE{
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ddeexec(TP_COMMAND,cmd); vTp,j-^
26j-1c!NGd
%Close the DDE connection 2[KHmdgtB
ddeterm(TP_COMMAND); "7?x aGh8
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