| liunian |
2016-07-13 15:19 |
程序如下： q E`
% By Ruibin 08-9-25 "p~1| ?T
% Instruction：This program help design LED collimating lens , feedback aspheric parameters and several chief dimensions. @iwg`j6ol
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clear all;clc r9@Q="J_)
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% The Frist Step: Define independent parameters %Ln7{w
r=3.25; %选择开孔半径 ;$\d^i{N
R=4.25; %定义曲面底部半径 |8b*BnS
d=1; %设置透镜前方平板高度 1dF =BR8
n=1.4935; %定义材料折射率 MhZ T<6
dividing_angle=24; %定义Core与TIR的分界角 OIa =$l43C
min_angle=1; %设置计算精度 6XO%l0dC.
N=4; %设定拟合非球面系数阶数 r~uWr'}a}
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% The Second Step：Caculate induced variable joh=0 nk;D
angles_Core=(dividing_angle:-min_angle:0);angles_TIR=(90:-min_angle:dividing_angle); nJ `JF5tI
num_Core=length(angles_Core);num_TIR=length(angles_TIR);
^t=Hl
for i=1:(num_Core) E{ *~>#+
a_Core(i)=(angles_Core(i)*pi/180); [*O#6Xu
k1(i)=cot(a_Core(i)); &41=YnC6
k2(i)=(-k1(i)+(n^2*k1(i)^2+n^2)^(1/2))/(n^2*k1(i)^2-k1(i)^2+n^2); 7
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end ?+S& `%?
k1(num_Core)=999;k2(num_Core)=0; 1Ig@ gdmz
for i=1:num_TIR A`4j=OF\
a_TIR(i)=(angles_TIR(i)*pi/180); Wm
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k3(i)=tan((pi/2+asin(cos(a_TIR(i))/n))/2); (DCC4%w"
k4(i)=tan(asin(cos(a_TIR(i))/n)); +1 H.5|
end = !'gV:M
X0_TIR=R;X0_Core=r;Y0_TIR=0;Y0_Core=r*cot(a_Core(1)); YB h :
# k1%}k=
% The Third Step:Solve functions O1Gd_wDC/i
for i=1:num_Core %Solve the curve of Core *BYSfcX6
syms x;
qh/q<
f1=k1(i)*x; ee]PFW28
f2=k2(i)*(x-X0_Core)+Y0_Core; (yduU
f=f1-f2; [EDw0e
x=double(solve(f));y=k1(i)*x; xQa[bvW
X0_Core=x;Y0_Core=y; h1Ca9Z_
Px_Core(i)=X0_Core;Py_Core(i)=Y0_Core; :Xv3< rS<
end )FM/^
for i=1:num_TIR %Solve the curve of TIR }*m:zD@8$
syms x; Z<Rz}8s
f1=k3(i)*(x-X0_TIR)+Y0_TIR; Dcq\1V.e`W
f2=k4(i)*(x-r)+r*cot(a_TIR(i)); W
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f=f1-f2; t nz
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x=double(solve(f));y=k3(i)*(x-X0_TIR)+Y0_TIR; `Y-uNJ'.N
X0_TIR=x;Y0_TIR=y; .}6 YKKqS
Px_TIR(i)=X0_TIR;Py_TIR(i)=Y0_TIR; }> k 9]Y
end
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% The furth Step:Fitting the curve h[%`'(
P_Core=polyfit(Px_Core,Py_Core,4); 3ryIXC\v
P_TIR=polyfit(Px_TIR,Py_TIR,4); >~I~!i3
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% The fifth Step:Feedback chief dimensions of the lens and Create it G6xdGUM
%Feedback dimensions of the whole lens qt Tys gv
result='透镜尺寸如下：' p%CAicn
Diameter_of_lens=2*Px_TIR(num_TIR) ~ w IVw}
Thickness_of_lens=Py_TIR(num_TIR)+d 2i#wJ8vrF
Diameter_of_Core=2*r zr?%k]A%UO
Thickness_of_front_pannel=d 6pI = ?g
Bottom_thickness=R-r L@w|2
Lowest_Core=P_Core(5) u4NMJnX
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%Feedback dimensions of Lens part TIR nI%0u<=d
result='TIR系数如下：' ?@ l9T)fF
Thickness=Py_TIR(num_TIR)-P_TIR(5)+d k/O|ia 6
Aperture=Px_TIR(num_TIR) LpJ\OI*v
Obstruction=r m1=3@>
Position=P_TIR(5) <0vQHND,3
format short e; }-k<>~FA
Aspheric=[P_TIR(4) P_TIR(3) P_TIR(2) P_TIR(1)] ]v@#3,BV
format short; Er Ji
;RW!l pGjP
%DDE Connection *'vX:n&t
TP_COMMAND = ddeinit('TracePro','Scheme'); ;14[)t$
%Create TIR IP $^)t[
cmd =['(define TIR (insert:lens-element "PLASTIC" "pmma" (list 0 0 7.0306e-002 1.2580e-001 -2.5732e-003 -2.5281e-006) 18.6774 (list 0 0)(list "cir" 13.6051 0 0 0)(list "cir" 3.25 0 0 0)))']; ,IxAt&kN
ddeexec(TP_COMMAND,cmd); s
d>&6 R^
cmd =['(entity:move TIR 0 0 -2.3712)']; XQ--8G
ddeexec(TP_COMMAND,cmd); s<|.vVi"
cmd =['(property:apply-name TIR "TIR")']; p-UACMN& c
ddeexec(TP_COMMAND,cmd); vL{~?vq6
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%Feedback dimensions of Lens part TIR ($' rV!}
result='Core系数如下：' @P6K`'.0
Thickness=Py_TIR(num_TIR)-P_Core(5)+d fz Rzkn:=
Aperture=r *f$mSI=
Obstruction='None' *j2P#et
Position=P_Core(5) :S0r)CNP
format short e; BQmg$N,F
Aspheric=[P_Core(4) P_Core(3) P_Core(2) P_Core(1)] /OK.n3Tt
format short; $ :s1x\ol
%Create Core QKYIBX
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)))']; 2J^6(vk
ddeexec(TP_COMMAND,cmd); RO=[Rr!
cmd =['(entity:move Core 0 0 5.9493)']; g4&zB n
ddeexec(TP_COMMAND,cmd); o8BbSZVu
cmd =['(property:apply-name Core "Core")']; %+i g7a:
ddeexec(TP_COMMAND,cmd); WZ'8{XY8
p@/!+$^{
%Create Lens NwoBM6 #
cmd =['(define Unite (bool:unite TIR Core))']; _+N*4
ddeexec(TP_COMMAND,cmd); R{\vOw:*
cmd =['(define block (insert:block 100 100 100))']; XgP7
!
ddeexec(TP_COMMAND,cmd); OqtQLqN
cmd =['(entity:move block 0 0 -50)']; ~4'e)g.hG
ddeexec(TP_COMMAND,cmd); C,hs!v6
cmd =['(define Lens (bool:subtract Unite block))']; 4~hd{8
ddeexec(TP_COMMAND,cmd); oU% rP
cmd =['(property:apply-name Lens "Lens")']; jn>3(GRGC$
ddeexec(TP_COMMAND,cmd); #+|{l*>
|8 c3%jve
%Close the DDE connection o"R[#E&Yx
ddeterm(TP_COMMAND); 2PE|4zG
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看看吧
