| liunian |
2016-07-13 15:19 |
程序如下： I$ !rNfrs
% By Ruibin 08-9-25 Iko1%GJ1Z
% Instruction：This program help design LED collimating lens , feedback aspheric parameters and several chief dimensions. (UWWULV
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clear all;clc 1'DD9d{ qN
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% The Frist Step: Define independent parameters 0 dxEV]
r=3.25; %选择开孔半径 @\0U`*]^)
R=4.25; %定义曲面底部半径 u;p.:{'
d=1; %设置透镜前方平板高度 ?145^ w
n=1.4935; %定义材料折射率 4 ti\;55{W
dividing_angle=24; %定义Core与TIR的分界角 "F? p\I)(
min_angle=1; %设置计算精度 g
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N=4; %设定拟合非球面系数阶数 ]OIB;h;3
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% The Second Step：Caculate induced variable Hhx"47 :
angles_Core=(dividing_angle:-min_angle:0);angles_TIR=(90:-min_angle:dividing_angle); Nn<TPT[,
num_Core=length(angles_Core);num_TIR=length(angles_TIR); A+P9M \u.
for i=1:(num_Core) ZXV_Dc
a_Core(i)=(angles_Core(i)*pi/180); 2F9Gx;}t5=
k1(i)=cot(a_Core(i)); ?'ID7mL
k2(i)=(-k1(i)+(n^2*k1(i)^2+n^2)^(1/2))/(n^2*k1(i)^2-k1(i)^2+n^2); *R1 m=
end 87WIDr
k1(num_Core)=999;k2(num_Core)=0; K ZoI jK]
for i=1:num_TIR o %GVg
a_TIR(i)=(angles_TIR(i)*pi/180); Er/ h:=
k3(i)=tan((pi/2+asin(cos(a_TIR(i))/n))/2); pu#h:nb>88
k4(i)=tan(asin(cos(a_TIR(i))/n)); "(bnr0
end Xg+Eeg#
X0_TIR=R;X0_Core=r;Y0_TIR=0;Y0_Core=r*cot(a_Core(1)); 3!E*h0$}
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% The Third Step:Solve functions |a9d]^
for i=1:num_Core %Solve the curve of Core j}9][Fm1*
syms x; O[%"zO"S
f1=k1(i)*x; x(oL\I_Z
f2=k2(i)*(x-X0_Core)+Y0_Core; ]}7FTMGbY
f=f1-f2; @qj4rt"
x=double(solve(f));y=k1(i)*x; |@'/F #T
X0_Core=x;Y0_Core=y; oz3N
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Px_Core(i)=X0_Core;Py_Core(i)=Y0_Core; <u "xHl8Io
end B(tLV9B3Q
for i=1:num_TIR %Solve the curve of TIR E D0\k $
syms x; ` pr$l
f1=k3(i)*(x-X0_TIR)+Y0_TIR; ;75m 9yGo
f2=k4(i)*(x-r)+r*cot(a_TIR(i)); g7\MFertR^
f=f1-f2; L#U-d zy\
x=double(solve(f));y=k3(i)*(x-X0_TIR)+Y0_TIR; P?| F+RoX$
X0_TIR=x;Y0_TIR=y; Fg` P@hC
Px_TIR(i)=X0_TIR;Py_TIR(i)=Y0_TIR; Hq<Sg 4nz
end S-x'nu$u
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% The furth Step:Fitting the curve E"i<fr
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P_Core=polyfit(Px_Core,Py_Core,4); HURr k~[
P_TIR=polyfit(Px_TIR,Py_TIR,4); >]b>gc? 3
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% The fifth Step:Feedback chief dimensions of the lens and Create it ,Dh+-}
%Feedback dimensions of the whole lens 6.#5Ra
result='透镜尺寸如下：' RRSkXDU}
Diameter_of_lens=2*Px_TIR(num_TIR) X}j WNN
Thickness_of_lens=Py_TIR(num_TIR)+d #63)I9>
Diameter_of_Core=2*r `D
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Thickness_of_front_pannel=d E2.@zY|:
Bottom_thickness=R-r GSl vT: k
Lowest_Core=P_Core(5) Ml-GAkgG
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%Feedback dimensions of Lens part TIR )|52B;yZx
result='TIR系数如下：' dU4 h
Thickness=Py_TIR(num_TIR)-P_TIR(5)+d W=QT-4
Aperture=Px_TIR(num_TIR) }jL_/gvgy
Obstruction=r [\i0@
Position=P_TIR(5) h>0R!Rl8
format short e; qH 1k
Aspheric=[P_TIR(4) P_TIR(3) P_TIR(2) P_TIR(1)] K;uOtbdOK
format short; (i3V[H
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%DDE Connection 3)D' Yx
TP_COMMAND = ddeinit('TracePro','Scheme'); W~" 'a9H/
%Create TIR w_gFN% 8
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)))']; 4c })LAwd&
ddeexec(TP_COMMAND,cmd); ~Qg:_ @@\
cmd =['(entity:move TIR 0 0 -2.3712)']; 0cGO*G2Xr
ddeexec(TP_COMMAND,cmd); Z}X oWT2f
cmd =['(property:apply-name TIR "TIR")']; .~3s~y*s
ddeexec(TP_COMMAND,cmd); oc|%|pmRd<
%R|_o<(#MJ
%Feedback dimensions of Lens part TIR v@xbur\L
result='Core系数如下：' ^4G%*-
Thickness=Py_TIR(num_TIR)-P_Core(5)+d 8%+F .r
Aperture=r eT!*_.' e
Obstruction='None' ]TE(:]o7V
Position=P_Core(5) 62-,!N 1-
format short e; <^+x}KV I
Aspheric=[P_Core(4) P_Core(3) P_Core(2) P_Core(1)] ,Wbr;
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format short; NE~R&ym9
%Create Core 1\t# *N
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)))']; /Jc fAY
ddeexec(TP_COMMAND,cmd); A'zXbp:%
cmd =['(entity:move Core 0 0 5.9493)']; 2`Dqu"TWh
ddeexec(TP_COMMAND,cmd); 7O.?I#
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cmd =['(property:apply-name Core "Core")']; o$4i{BL
ddeexec(TP_COMMAND,cmd); ) 2pOCAjL2
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%Create Lens G5l?c@o
cmd =['(define Unite (bool:unite TIR Core))']; LMGo8%2I
ddeexec(TP_COMMAND,cmd); A hyV
cmd =['(define block (insert:block 100 100 100))']; " e-RV
ddeexec(TP_COMMAND,cmd); og?>Q i Tr
cmd =['(entity:move block 0 0 -50)']; l* ap$1'
ddeexec(TP_COMMAND,cmd); ^Rpy5/d
cmd =['(define Lens (bool:subtract Unite block))']; x$SxGc~4gb
ddeexec(TP_COMMAND,cmd); } CM< /
cmd =['(property:apply-name Lens "Lens")']; `)aIFAW
ddeexec(TP_COMMAND,cmd); Xn%t y@8
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%Close the DDE connection )0 1,3J>#
ddeterm(TP_COMMAND); yIq.
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看看吧
