| liunian |
2016-07-13 15:19 |
程序如下： (Bpn9}F-V.
% By Ruibin 08-9-25 fX1Ib$v
% Instruction：This program help design LED collimating lens , feedback aspheric parameters and several chief dimensions. k@>(sXs
G%}k_vi&q
clear all;clc ]4lC/ &nm
X @A8~ kj1
% The Frist Step: Define independent parameters yVpru8+eD
r=3.25; %选择开孔半径 9sv#TT5V
R=4.25; %定义曲面底部半径 ,,S 2>X*L
d=1; %设置透镜前方平板高度 PbV1FB_
n=1.4935; %定义材料折射率 (8N E'd8
dividing_angle=24; %定义Core与TIR的分界角 3_{rXtT)'
min_angle=1; %设置计算精度 YWk+}y}^d
N=4; %设定拟合非球面系数阶数 }%y5<n *v\
{t]8#[lo
% The Second Step：Caculate induced variable >Wd _?NaI
angles_Core=(dividing_angle:-min_angle:0);angles_TIR=(90:-min_angle:dividing_angle); 7$R^u7DZ
num_Core=length(angles_Core);num_TIR=length(angles_TIR); 8@FgvWC
for i=1:(num_Core) 2';{o=TXV
a_Core(i)=(angles_Core(i)*pi/180); wRX#^;O9?>
k1(i)=cot(a_Core(i)); '@^mesMG
k2(i)=(-k1(i)+(n^2*k1(i)^2+n^2)^(1/2))/(n^2*k1(i)^2-k1(i)^2+n^2); ? Z2`f6;W4
end lpbcpB
k1(num_Core)=999;k2(num_Core)=0; $B]_^
for i=1:num_TIR <?Z]h]C^o
a_TIR(i)=(angles_TIR(i)*pi/180); 8>I4e5Ym
k3(i)=tan((pi/2+asin(cos(a_TIR(i))/n))/2); q1rD>n&d
k4(i)=tan(asin(cos(a_TIR(i))/n));
B,ao%3t
end @)ls+}=Y
X0_TIR=R;X0_Core=r;Y0_TIR=0;Y0_Core=r*cot(a_Core(1)); &IG*; $c!
1V,DcolRY
% The Third Step:Solve functions ' Yy+^iCus
for i=1:num_Core %Solve the curve of Core hij
9r z
syms x; S ++j wP
f1=k1(i)*x; W*u$e8i7
f2=k2(i)*(x-X0_Core)+Y0_Core; q5)
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f=f1-f2; gBXoEn]
x=double(solve(f));y=k1(i)*x; F84<=' K
X0_Core=x;Y0_Core=y; 7oCY@>(f
Px_Core(i)=X0_Core;Py_Core(i)=Y0_Core; r\ C"Fx^
end .k,,PuP
for i=1:num_TIR %Solve the curve of TIR 12tAx3p
syms x; $h
>rs
f1=k3(i)*(x-X0_TIR)+Y0_TIR; qtz~Y~h|>
f2=k4(i)*(x-r)+r*cot(a_TIR(i)); #w!ewC vt
f=f1-f2; +Ur75YPh
x=double(solve(f));y=k3(i)*(x-X0_TIR)+Y0_TIR; R)=){SI:1)
X0_TIR=x;Y0_TIR=y; ]na$n[T/I
Px_TIR(i)=X0_TIR;Py_TIR(i)=Y0_TIR; @oD2_D2
end jq_ i&~S
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% The furth Step:Fitting the curve qv<^%7gq
P_Core=polyfit(Px_Core,Py_Core,4); D jvPeX
P_TIR=polyfit(Px_TIR,Py_TIR,4); >H,E3Z
}>b@=5O
% The fifth Step:Feedback chief dimensions of the lens and Create it Qs<L$"L1
%Feedback dimensions of the whole lens TRE D_6
result='透镜尺寸如下：' zNg[%{mz
Diameter_of_lens=2*Px_TIR(num_TIR) ,@zw
Thickness_of_lens=Py_TIR(num_TIR)+d D8WKy
Diameter_of_Core=2*r Usd MCJ&G
Thickness_of_front_pannel=d oE,TA2
Bottom_thickness=R-r tF.N
Lowest_Core=P_Core(5) {f;DhB-jj
RW<4",
%Feedback dimensions of Lens part TIR UMK9[Iy$<M
result='TIR系数如下：' Us%g&MWdpb
Thickness=Py_TIR(num_TIR)-P_TIR(5)+d 4Zn [F^p
Aperture=Px_TIR(num_TIR) 0y2zjXM;3
Obstruction=r <00=bZzX
Position=P_TIR(5) "1 UpoF'w
format short e; mRxeob
Aspheric=[P_TIR(4) P_TIR(3) P_TIR(2) P_TIR(1)] y=AF
EP
format short; 9!ARr@ ;
n|B< rx?v
%DDE Connection .dwbJT
TP_COMMAND = ddeinit('TracePro','Scheme'); =JxEM7r
%Create TIR t~":'le`zr
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)))']; BQ B<+o'
ddeexec(TP_COMMAND,cmd); L yG`q3@
cmd =['(entity:move TIR 0 0 -2.3712)']; & u6ydN1xe
ddeexec(TP_COMMAND,cmd); # ] ;ulDq
cmd =['(property:apply-name TIR "TIR")']; *] !r T&E
ddeexec(TP_COMMAND,cmd); e2L >"/
}[(v(1j='~
%Feedback dimensions of Lens part TIR zT93S b
result='Core系数如下：' :`uu[^
Thickness=Py_TIR(num_TIR)-P_Core(5)+d o[q|dhrANh
Aperture=r gLK0L%"5
Obstruction='None' ^ ~dC&!D
Position=P_Core(5) 5tEkQ(Ei8
format short e; 46~nwi$,^
Aspheric=[P_Core(4) P_Core(3) P_Core(2) P_Core(1)] +x<OyjY5?]
format short; ~(:0&w%e
%Create Core S>jOVWB
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)))']; Hoi~(Vc.
ddeexec(TP_COMMAND,cmd); MeAY\V%G=o
cmd =['(entity:move Core 0 0 5.9493)']; }rF4M1+B\
ddeexec(TP_COMMAND,cmd); $9u:Ox
2
cmd =['(property:apply-name Core "Core")']; +{#Z^y6&
ddeexec(TP_COMMAND,cmd); !>/J]/4>
ja(ZJ[<`
%Create Lens Y=y
0`?K
cmd =['(define Unite (bool:unite TIR Core))']; ubc
k{\.
ddeexec(TP_COMMAND,cmd); *e:2iM)8~
cmd =['(define block (insert:block 100 100 100))']; XJk~bgO*
ddeexec(TP_COMMAND,cmd); )19#g1rn5
cmd =['(entity:move block 0 0 -50)']; X1BqN+=@9
ddeexec(TP_COMMAND,cmd); Bj\Us$cZ
cmd =['(define Lens (bool:subtract Unite block))']; qxYCT$1
ddeexec(TP_COMMAND,cmd); SL
+ \{V2
cmd =['(property:apply-name Lens "Lens")']; P/Y)Yx_(
ddeexec(TP_COMMAND,cmd); y. (m# &T
}9FWtXAU^1
%Close the DDE connection x'SIHV4M@Q
ddeterm(TP_COMMAND); I.`D BI#-f
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看看吧
