| liunian |
2016-07-13 15:19 |
程序如下： Wh4`Iv\.
% By Ruibin 08-9-25 ZW\}4q;[A
% Instruction：This program help design LED collimating lens , feedback aspheric parameters and several chief dimensions. a= 3?hVpB
DDh$n?2fd
clear all;clc YK Nz[x$|
< igsO
% The Frist Step: Define independent parameters dx{ ZG'@aH
r=3.25; %选择开孔半径 o.-rdP0P>
R=4.25; %定义曲面底部半径 >(Mu9ie*`
d=1; %设置透镜前方平板高度 8w & A89
n=1.4935; %定义材料折射率 KF&1Y>t=
dividing_angle=24; %定义Core与TIR的分界角 yZJR7+
min_angle=1; %设置计算精度 DuJbWtA
N=4; %设定拟合非球面系数阶数 '(M8D5?N-
cl s-x@
Kd
% The Second Step：Caculate induced variable 5nL,sF d
angles_Core=(dividing_angle:-min_angle:0);angles_TIR=(90:-min_angle:dividing_angle); u`Kj s}F'
num_Core=length(angles_Core);num_TIR=length(angles_TIR); 86(8p_&zC
for i=1:(num_Core) C"w>U
a_Core(i)=(angles_Core(i)*pi/180); 3(|8gWQ
k1(i)=cot(a_Core(i)); "]|I;I"b
k2(i)=(-k1(i)+(n^2*k1(i)^2+n^2)^(1/2))/(n^2*k1(i)^2-k1(i)^2+n^2); O+U9 p
end sG{hUsPa
k1(num_Core)=999;k2(num_Core)=0; 7 U_~_yb
for i=1:num_TIR /8 / 2#`3R
a_TIR(i)=(angles_TIR(i)*pi/180); z Q tg]@S
k3(i)=tan((pi/2+asin(cos(a_TIR(i))/n))/2); u'"VbW3u n
k4(i)=tan(asin(cos(a_TIR(i))/n)); ooa>~!91P
end gKK*`
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X0_TIR=R;X0_Core=r;Y0_TIR=0;Y0_Core=r*cot(a_Core(1)); ( vHB`@x
!Oj].
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% The Third Step:Solve functions PS ,@ \
for i=1:num_Core %Solve the curve of Core D&KD5_Sw
syms x; *G|w#-\.c
f1=k1(i)*x; '{9nQ DgT
f2=k2(i)*(x-X0_Core)+Y0_Core; fba QXM
f=f1-f2; z& !n'N <C
x=double(solve(f));y=k1(i)*x; G2Zr (b')
X0_Core=x;Y0_Core=y; k!Y7 Rc{"
Px_Core(i)=X0_Core;Py_Core(i)=Y0_Core; E>xd*23+\
end [43:E*\$
for i=1:num_TIR %Solve the curve of TIR sYlA{Z"
syms x; OmO/x
f1=k3(i)*(x-X0_TIR)+Y0_TIR; uzA"+cV5
f2=k4(i)*(x-r)+r*cot(a_TIR(i)); S i[:l
f=f1-f2; Cnp\2Fu/
x=double(solve(f));y=k3(i)*(x-X0_TIR)+Y0_TIR; S+LE ASOr
X0_TIR=x;Y0_TIR=y; L w EI
Px_TIR(i)=X0_TIR;Py_TIR(i)=Y0_TIR; NijvFT$V1
end 0'ha!4h3Z
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% The furth Step:Fitting the curve "p<B|
P_Core=polyfit(Px_Core,Py_Core,4); u;$g1 3
P_TIR=polyfit(Px_TIR,Py_TIR,4); [wS ~.
.6I*=qv)NA
% The fifth Step:Feedback chief dimensions of the lens and Create it E3X6-J|
%Feedback dimensions of the whole lens >U/ m/H'
result='透镜尺寸如下：' ;[
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Diameter_of_lens=2*Px_TIR(num_TIR) 59e q"08
Thickness_of_lens=Py_TIR(num_TIR)+d . e' v c
Diameter_of_Core=2*r =b+W*vUAw
Thickness_of_front_pannel=d E3bS Q
Bottom_thickness=R-r x[]}Jf{t
Lowest_Core=P_Core(5) NY.Y=CF("
R7xKVS_MP
%Feedback dimensions of Lens part TIR S%ULGX:@ga
result='TIR系数如下：' -8;@NAUa
Thickness=Py_TIR(num_TIR)-P_TIR(5)+d Y/\y"a
Aperture=Px_TIR(num_TIR) .QRa{l_)
Obstruction=r *_Y{wNF *
Position=P_TIR(5) d51.Tbt#%7
format short e; :q6j {C(
Aspheric=[P_TIR(4) P_TIR(3) P_TIR(2) P_TIR(1)] 3<:(Eda}
format short; Eg&oAY.U
p$r=jF&
%DDE Connection O>P792)
TP_COMMAND = ddeinit('TracePro','Scheme'); cuenDw=eC
%Create TIR 9b
K K
cmd =['(define TIR (insert:lens-element "PLASTIC" "pmma" (list 0 0 7.0306e-002 1.2580e-001 -2.5732e-003 -2.5281e-006) 18.6774 (list 0 0)(list "cir" 13.6051 0 0 0)(list "cir" 3.25 0 0 0)))']; xO2 e>[W
ddeexec(TP_COMMAND,cmd); =7&2-'(@
cmd =['(entity:move TIR 0 0 -2.3712)']; @=@7Uu-
ddeexec(TP_COMMAND,cmd); _M.7%k/U8
cmd =['(property:apply-name TIR "TIR")']; yb)!jLnH
ddeexec(TP_COMMAND,cmd); {.vU;
u=ep nz:<
%Feedback dimensions of Lens part TIR M'Ec:p=X"
result='Core系数如下：' v(uYso_
Thickness=Py_TIR(num_TIR)-P_Core(5)+d i vy+e-)
Aperture=r bUR; d78
Obstruction='None' ["N{6d&Q
Position=P_Core(5) Jzqv6A3G
format short e; mJjd2a"vi
Aspheric=[P_Core(4) P_Core(3) P_Core(2) P_Core(1)] ~`7L\'fs
format short; xl.iI$P
%Create Core I)@b#V=
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)))']; xiv1y4(%
ddeexec(TP_COMMAND,cmd); pDW4DF:`(
cmd =['(entity:move Core 0 0 5.9493)']; eU a2"=M
ddeexec(TP_COMMAND,cmd); E038p]M!
cmd =['(property:apply-name Core "Core")']; 9~AAdD
ddeexec(TP_COMMAND,cmd); +4<Ij/}p
v; !f
%Create Lens _0Mt*]L }
cmd =['(define Unite (bool:unite TIR Core))']; 'q+CL&D
ddeexec(TP_COMMAND,cmd); Yh=/?&*
cmd =['(define block (insert:block 100 100 100))']; nYf Z[Q>v
ddeexec(TP_COMMAND,cmd); #dcf Q
cmd =['(entity:move block 0 0 -50)']; G 5JZpB#o
ddeexec(TP_COMMAND,cmd); Q?e]N I^
cmd =['(define Lens (bool:subtract Unite block))']; $@H]0<3,
ddeexec(TP_COMMAND,cmd); ^c QTRO|
cmd =['(property:apply-name Lens "Lens")']; IF"-{@
ddeexec(TP_COMMAND,cmd); 4dfR}C
-Re4G78%
%Close the DDE connection e -sZ_<GH
ddeterm(TP_COMMAND); !1g2'
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看看吧
