| liunian |
2016-07-13 15:19 |
程序如下：
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% By Ruibin 08-9-25 W6&" .2
% Instruction：This program help design LED collimating lens , feedback aspheric parameters and several chief dimensions. x*i5g` jx
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clear all;clc f|?i6.N> f
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% The Frist Step: Define independent parameters nE]R0|4h
r=3.25; %选择开孔半径 !rb)Y;WQt
R=4.25; %定义曲面底部半径 zi2hi9A
d=1; %设置透镜前方平板高度 " FcA:7 +
n=1.4935; %定义材料折射率 ~yt+xWV
dividing_angle=24; %定义Core与TIR的分界角 |GL#E"[&'
min_angle=1; %设置计算精度 -#3B>VY
N=4; %设定拟合非球面系数阶数 7\JRHw
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% The Second Step：Caculate induced variable
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angles_Core=(dividing_angle:-min_angle:0);angles_TIR=(90:-min_angle:dividing_angle); )oG_x {
num_Core=length(angles_Core);num_TIR=length(angles_TIR); SWO$# X /
for i=1:(num_Core) M^mS#<!y
a_Core(i)=(angles_Core(i)*pi/180); wi:]o o#
k1(i)=cot(a_Core(i)); D?qA
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k2(i)=(-k1(i)+(n^2*k1(i)^2+n^2)^(1/2))/(n^2*k1(i)^2-k1(i)^2+n^2); U;;vNzcn
end nE Qw6q~je
k1(num_Core)=999;k2(num_Core)=0; p:k>!8.Qho
for i=1:num_TIR .cQwj L
a_TIR(i)=(angles_TIR(i)*pi/180); \4~uop,Nb+
k3(i)=tan((pi/2+asin(cos(a_TIR(i))/n))/2); `P)atQ
k4(i)=tan(asin(cos(a_TIR(i))/n)); m]=|%a6
end l *yml
X0_TIR=R;X0_Core=r;Y0_TIR=0;Y0_Core=r*cot(a_Core(1)); MCe =R R
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% The Third Step:Solve functions P
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for i=1:num_Core %Solve the curve of Core ,S:g 5n >M
syms x; ~( - B%Az
f1=k1(i)*x; Ga sIOPzK
f2=k2(i)*(x-X0_Core)+Y0_Core; +aEE(u6%E@
f=f1-f2;
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x=double(solve(f));y=k1(i)*x; /=lrdp!a
X0_Core=x;Y0_Core=y; $?(fiFC
Px_Core(i)=X0_Core;Py_Core(i)=Y0_Core; f`RcfY t
end ;wp)E nF
for i=1:num_TIR %Solve the curve of TIR @/`b:sv&*
syms x; Z99%uI3
f1=k3(i)*(x-X0_TIR)+Y0_TIR; \.9-:\'(
f2=k4(i)*(x-r)+r*cot(a_TIR(i)); QlSZr[^ v
f=f1-f2; K
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x=double(solve(f));y=k3(i)*(x-X0_TIR)+Y0_TIR; 3vHEPm]
X0_TIR=x;Y0_TIR=y; #8%Lc3n
Px_TIR(i)=X0_TIR;Py_TIR(i)=Y0_TIR; ?#rDoYt/Sx
end ?%iAkV
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% The furth Step:Fitting the curve CcLP/
P_Core=polyfit(Px_Core,Py_Core,4); + 3aAL&
P_TIR=polyfit(Px_TIR,Py_TIR,4); (JL{X`gs#
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% The fifth Step:Feedback chief dimensions of the lens and Create it )`,3/i9C$
%Feedback dimensions of the whole lens y%cg
result='透镜尺寸如下：' 1$q SbQ
Diameter_of_lens=2*Px_TIR(num_TIR) *9`@
Thickness_of_lens=Py_TIR(num_TIR)+d 'X<R)E
Diameter_of_Core=2*r My5h;N@C
Thickness_of_front_pannel=d teg LGp@_
Bottom_thickness=R-r rts@1JY[
Lowest_Core=P_Core(5) ORA +>
S$=])^ dur
%Feedback dimensions of Lens part TIR &`Z>z T}
result='TIR系数如下：' [L{q
Thickness=Py_TIR(num_TIR)-P_TIR(5)+d :jT1=PfL
Aperture=Px_TIR(num_TIR) R8W{[@
Obstruction=r ?r'rvu'/
Position=P_TIR(5) MJt?^G (w?
format short e; W-<C%9O!
Aspheric=[P_TIR(4) P_TIR(3) P_TIR(2) P_TIR(1)] [_^K }\ /+
format short; TC<_I0jCh
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%DDE Connection Oq|RMl
TP_COMMAND = ddeinit('TracePro','Scheme'); >Te Ta l
%Create TIR
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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)))']; KWLI7fTgj$
ddeexec(TP_COMMAND,cmd); HKP<=<8/O
cmd =['(entity:move TIR 0 0 -2.3712)']; @v2_gjRe
ddeexec(TP_COMMAND,cmd); q#x oM1
cmd =['(property:apply-name TIR "TIR")']; %S.
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ddeexec(TP_COMMAND,cmd); =d!3_IZ
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%Feedback dimensions of Lens part TIR Ww{bh -nyq
result='Core系数如下：' [W , E j
Thickness=Py_TIR(num_TIR)-P_Core(5)+d %|I~8>m
Aperture=r &_x:+ {06
Obstruction='None' q3z<v:=1y
Position=P_Core(5) Q = )$
format short e; QaH32( iH
Aspheric=[P_Core(4) P_Core(3) P_Core(2) P_Core(1)] #e }Q|pF
format short; 2TXrVaM
%Create Core P6!c-\
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)))']; 9f\Lon4lX
ddeexec(TP_COMMAND,cmd); -lQ8
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cmd =['(entity:move Core 0 0 5.9493)']; ^a 0{"|Lq
ddeexec(TP_COMMAND,cmd); o+*YX!]#L
cmd =['(property:apply-name Core "Core")']; XT9]+b8(M
ddeexec(TP_COMMAND,cmd); _K<H*R
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%Create Lens <'>c`80@\*
cmd =['(define Unite (bool:unite TIR Core))']; - ,)&? S
ddeexec(TP_COMMAND,cmd); 7 y5`YJ}!
cmd =['(define block (insert:block 100 100 100))']; _D1U c|
ddeexec(TP_COMMAND,cmd); p[2`H$A
cmd =['(entity:move block 0 0 -50)']; )"/.2S;
ddeexec(TP_COMMAND,cmd); 3yX^ 93
cmd =['(define Lens (bool:subtract Unite block))']; dY5 m) ?
ddeexec(TP_COMMAND,cmd); E#[_"^n
cmd =['(property:apply-name Lens "Lens")']; { 0RwjPYp
ddeexec(TP_COMMAND,cmd); *|{1`{8n
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%Close the DDE connection 3q:U0&F
ddeterm(TP_COMMAND); >x9@ if
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看看吧
