| liunian |
2016-07-13 15:19 |
程序如下： ' ^L
% By Ruibin 08-9-25 ;NVTn<Uj
% Instruction：This program help design LED collimating lens , feedback aspheric parameters and several chief dimensions. xp;8p94
Wes "t}[25
clear all;clc 6g,3s?aT
Gqz)='
% The Frist Step: Define independent parameters &\D<n; 3
r=3.25; %选择开孔半径 zSvHv s
R=4.25; %定义曲面底部半径 uXW.
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d=1; %设置透镜前方平板高度 o6yZ@R
n=1.4935; %定义材料折射率 hD.wKX?oO
dividing_angle=24; %定义Core与TIR的分界角 !rmo* -=^=
min_angle=1; %设置计算精度 (IQ L`3f%
N=4; %设定拟合非球面系数阶数 H.G^!0j;
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% The Second Step：Caculate induced variable P# #( V!YR
angles_Core=(dividing_angle:-min_angle:0);angles_TIR=(90:-min_angle:dividing_angle); k)t8J \
num_Core=length(angles_Core);num_TIR=length(angles_TIR); FHPZQ C8
for i=1:(num_Core) {.8)gVBmA
a_Core(i)=(angles_Core(i)*pi/180); XlcDF|?{.
k1(i)=cot(a_Core(i)); Jt^JE{m9%
k2(i)=(-k1(i)+(n^2*k1(i)^2+n^2)^(1/2))/(n^2*k1(i)^2-k1(i)^2+n^2); r\- k/ 0
end f6A['<%o
k1(num_Core)=999;k2(num_Core)=0; -hV KPIb
for i=1:num_TIR ^9~%=k=
a_TIR(i)=(angles_TIR(i)*pi/180); gK_[3FiKt
k3(i)=tan((pi/2+asin(cos(a_TIR(i))/n))/2); Gkvd{G?F
k4(i)=tan(asin(cos(a_TIR(i))/n)); _[Wrd?Z
end %lW:8 ckL
X0_TIR=R;X0_Core=r;Y0_TIR=0;Y0_Core=r*cot(a_Core(1));
0
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~l(tl[
% The Third Step:Solve functions HSFf&|qqx
for i=1:num_Core %Solve the curve of Core Z 2jMBe
syms x; gM[
J'DMW
f1=k1(i)*x; 1ORi]`
f2=k2(i)*(x-X0_Core)+Y0_Core; 8pt<)Rs}
f=f1-f2; ~g|0u O}.
x=double(solve(f));y=k1(i)*x; #E K8Qe_
X0_Core=x;Y0_Core=y; d(tf: @
Px_Core(i)=X0_Core;Py_Core(i)=Y0_Core; ~4gKA D
end 3sIM7WD?
for i=1:num_TIR %Solve the curve of TIR $6%;mep
syms x; m|gd9m $,?
f1=k3(i)*(x-X0_TIR)+Y0_TIR; 4^9_E &Fa
f2=k4(i)*(x-r)+r*cot(a_TIR(i)); Gf.o {
f=f1-f2; @a3v[}c*
x=double(solve(f));y=k3(i)*(x-X0_TIR)+Y0_TIR; <T[u i
X0_TIR=x;Y0_TIR=y; p arG
Px_TIR(i)=X0_TIR;Py_TIR(i)=Y0_TIR; 8ngf(#_{_n
end f=Y9a$.:M
Pt;Ahmi
% The furth Step:Fitting the curve BkqW>[\5xm
P_Core=polyfit(Px_Core,Py_Core,4); Upen/1 bA
P_TIR=polyfit(Px_TIR,Py_TIR,4); -{mq\GvGn
H5t`E^E
% The fifth Step:Feedback chief dimensions of the lens and Create it % E _{L
%Feedback dimensions of the whole lens 4'| :SyOm
result='透镜尺寸如下：' 84cH|j`w
Diameter_of_lens=2*Px_TIR(num_TIR) (ZsR=:9(
Thickness_of_lens=Py_TIR(num_TIR)+d ZJM^P'r.1c
Diameter_of_Core=2*r eR;0pWVl
Thickness_of_front_pannel=d ?LM'5
Bottom_thickness=R-r /a)=B)NH
Lowest_Core=P_Core(5) 8 z7,W3b
Vtk|WV?>P+
%Feedback dimensions of Lens part TIR izo
$0
result='TIR系数如下：' _3>zi.J/
Thickness=Py_TIR(num_TIR)-P_TIR(5)+d ]iX$p~riH
Aperture=Px_TIR(num_TIR) #E)]7!_XG
Obstruction=r z*1K<w8
Position=P_TIR(5) )uWNN "
format short e; RjHpC7b* %
Aspheric=[P_TIR(4) P_TIR(3) P_TIR(2) P_TIR(1)] F'*4:W D7
format short; KK|Jach
T6#GlO)8)
%DDE Connection _.LWc^Sg
TP_COMMAND = ddeinit('TracePro','Scheme'); Okc*)crw
%Create TIR [GM<Wt0
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)))']; mr.DP~O:9p
ddeexec(TP_COMMAND,cmd); $Bb/GXn{\
cmd =['(entity:move TIR 0 0 -2.3712)']; Gj r2]t;E
ddeexec(TP_COMMAND,cmd); yK3z3"1M?
cmd =['(property:apply-name TIR "TIR")']; @kymL8"2w
ddeexec(TP_COMMAND,cmd); s50ln&2
net9K X4\
%Feedback dimensions of Lens part TIR gvYs<,:
result='Core系数如下：' g p2)35
Thickness=Py_TIR(num_TIR)-P_Core(5)+d (0f^Hh wF
Aperture=r s ~G{-)*
Obstruction='None' 3J<,2
Position=P_Core(5) g.s oN qt=
format short e; (7,Aw f5D~
Aspheric=[P_Core(4) P_Core(3) P_Core(2) P_Core(1)] bux-t3g7+
format short; V;(LeuDH|
%Create Core c
@R 6p+
cmd =['(define Core (insert:lens-element "PLASTIC" "pmma" (list 0 0 -2.6211e-002 1.9124e-001 -1.7949e-002 2.8016e-004) 10.3569 (list 0 0)(list "cir" 3.2500 0 0 0)))']; v^'~ -^s
ddeexec(TP_COMMAND,cmd); RGmpkQEp
cmd =['(entity:move Core 0 0 5.9493)']; [%kucG C7
ddeexec(TP_COMMAND,cmd); 37Y]sJrs$
cmd =['(property:apply-name Core "Core")']; *6tN o-)^
ddeexec(TP_COMMAND,cmd); *E'K{?-K
|&7 ,g
%Create Lens (=9&" UH
cmd =['(define Unite (bool:unite TIR Core))']; XT"c7]X
ddeexec(TP_COMMAND,cmd); >Z% `&D~u
cmd =['(define block (insert:block 100 100 100))']; 67?5Cv
ddeexec(TP_COMMAND,cmd); _!zY(9%
cmd =['(entity:move block 0 0 -50)']; qZe"'"3M
ddeexec(TP_COMMAND,cmd); $EF@x}h:A
cmd =['(define Lens (bool:subtract Unite block))']; _(foJRr
ddeexec(TP_COMMAND,cmd); $}fA ;BP
cmd =['(property:apply-name Lens "Lens")']; $(U|JR@
ddeexec(TP_COMMAND,cmd); 3I+pe;
.>n|#XK
%Close the DDE connection A$ cbH.
ddeterm(TP_COMMAND); KJ_ R@,v\
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看看吧
