| liunian |
2016-07-13 15:19 |
程序如下：
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% By Ruibin 08-9-25
^I)N. 5
% Instruction：This program help design LED collimating lens , feedback aspheric parameters and several chief dimensions. ZW }_Q s
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clear all;clc YF:L)0H'O
:h V7>
rr
% The Frist Step: Define independent parameters TU7' J
r=3.25; %选择开孔半径 X|8c>_}
R=4.25; %定义曲面底部半径 W T}H>T
d=1; %设置透镜前方平板高度 9 E6R0D}
n=1.4935; %定义材料折射率 ; Hd7*`$
dividing_angle=24; %定义Core与TIR的分界角 9I/N4sou
min_angle=1; %设置计算精度 F3N6{ysK#
N=4; %设定拟合非球面系数阶数 ]d%8k}U
7` YEH2
% The Second Step：Caculate induced variable ,{q;;b9
angles_Core=(dividing_angle:-min_angle:0);angles_TIR=(90:-min_angle:dividing_angle); AFfAtu
num_Core=length(angles_Core);num_TIR=length(angles_TIR); 2"S}bfrX
for i=1:(num_Core) 9$m|'$p3sG
a_Core(i)=(angles_Core(i)*pi/180); ~WN:DXn
k1(i)=cot(a_Core(i)); S[T8T |_
k2(i)=(-k1(i)+(n^2*k1(i)^2+n^2)^(1/2))/(n^2*k1(i)^2-k1(i)^2+n^2); -)/$M(Pu"
end t. '!`5G
k1(num_Core)=999;k2(num_Core)=0; nJ LFfXWx
for i=1:num_TIR :Lug7bUVD
a_TIR(i)=(angles_TIR(i)*pi/180); (@}!0[[^
k3(i)=tan((pi/2+asin(cos(a_TIR(i))/n))/2); 8h4'(yGQQW
k4(i)=tan(asin(cos(a_TIR(i))/n)); +&"zU GTIc
end i @R
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X0_TIR=R;X0_Core=r;Y0_TIR=0;Y0_Core=r*cot(a_Core(1)); :Xd<74Nu
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% The Third Step:Solve functions /[>sf[X\I9
for i=1:num_Core %Solve the curve of Core @oad,=R&
syms x; 0,8okA H
f1=k1(i)*x; 14'45
f2=k2(i)*(x-X0_Core)+Y0_Core; mo#04;VF
f=f1-f2; 5lT*hF
x=double(solve(f));y=k1(i)*x; ]P2"[y
X0_Core=x;Y0_Core=y; (/*]?Ehd
Px_Core(i)=X0_Core;Py_Core(i)=Y0_Core; r{%q f;
end #`X?=/q
for i=1:num_TIR %Solve the curve of TIR KFkoS0M5|
syms x; G<^{&E+=
f1=k3(i)*(x-X0_TIR)+Y0_TIR; NL0n009"c$
f2=k4(i)*(x-r)+r*cot(a_TIR(i)); 1|6%evPu(
f=f1-f2;
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x=double(solve(f));y=k3(i)*(x-X0_TIR)+Y0_TIR; az|N-?u
X0_TIR=x;Y0_TIR=y; we?76t:-
Px_TIR(i)=X0_TIR;Py_TIR(i)=Y0_TIR; 0tB0@Wj
end _W'-+,
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% The furth Step:Fitting the curve 7;(UF= 4
P_Core=polyfit(Px_Core,Py_Core,4); %\Mo-Ow! \
P_TIR=polyfit(Px_TIR,Py_TIR,4); f &wb
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% The fifth Step:Feedback chief dimensions of the lens and Create it "4,?uPi
%Feedback dimensions of the whole lens Eue~Y+K*b
result='透镜尺寸如下：' 1,!(0
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Diameter_of_lens=2*Px_TIR(num_TIR) -n<pPau2
Thickness_of_lens=Py_TIR(num_TIR)+d Jl9k``r*
Diameter_of_Core=2*r f_Av3
Thickness_of_front_pannel=d 'xg
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Bottom_thickness=R-r -701j 'q{
Lowest_Core=P_Core(5) 7y@Pa&^8
u21EP[[,
%Feedback dimensions of Lens part TIR pDC eQ6?
result='TIR系数如下：' #7YY<)
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Thickness=Py_TIR(num_TIR)-P_TIR(5)+d I [##2
Aperture=Px_TIR(num_TIR) M 8b;d}XL
Obstruction=r _v=SH$O+
Position=P_TIR(5) Ev(>z- {F
format short e; s1=G;
Aspheric=[P_TIR(4) P_TIR(3) P_TIR(2) P_TIR(1)] e?=^;v%r
format short; J h[UtYb5
!*. - `$x
%DDE Connection r|PB* `
TP_COMMAND = ddeinit('TracePro','Scheme'); oVe| M ss6
%Create TIR Um-[ ~-
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)))']; !pdb'*,n
ddeexec(TP_COMMAND,cmd); ~-J]W-n
cmd =['(entity:move TIR 0 0 -2.3712)']; [ )dXI IM
ddeexec(TP_COMMAND,cmd); QR0Q{}wbqU
cmd =['(property:apply-name TIR "TIR")']; > eIP., 9
ddeexec(TP_COMMAND,cmd); :'l^kSP_*C
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%Feedback dimensions of Lens part TIR V<uR>TD(
result='Core系数如下：' ssxzC4m
Thickness=Py_TIR(num_TIR)-P_Core(5)+d M={V|H0
Aperture=r `Kr,>sEAM
Obstruction='None' 'd$P`Vw:
Position=P_Core(5) ^y1j.M@q
format short e; usCt#eZK
Aspheric=[P_Core(4) P_Core(3) P_Core(2) P_Core(1)] Q Y?~ZwYB
format short; c~uKsU
%Create Core tL)t" i
cmd =['(define Core (insert:lens-element "PLASTIC" "pmma" (list 0 0 -2.6211e-002 1.9124e-001 -1.7949e-002 2.8016e-004) 10.3569 (list 0 0)(list "cir" 3.2500 0 0 0)))']; _JE"{ ;
ddeexec(TP_COMMAND,cmd); Midy"
cmd =['(entity:move Core 0 0 5.9493)']; =~H<Z LE+
ddeexec(TP_COMMAND,cmd); :~T99^$zA
cmd =['(property:apply-name Core "Core")']; j=aI 9p
ddeexec(TP_COMMAND,cmd); 5r8< 7g:>C
gSU cx9f]
%Create Lens (ECnM ti+
cmd =['(define Unite (bool:unite TIR Core))']; [8,yF
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ddeexec(TP_COMMAND,cmd); ( _)jkI
\
cmd =['(define block (insert:block 100 100 100))']; ^ o1*a&~J@
ddeexec(TP_COMMAND,cmd); lXiK Y@R#
cmd =['(entity:move block 0 0 -50)']; w6GyBo{2O_
ddeexec(TP_COMMAND,cmd); | >27 B
cmd =['(define Lens (bool:subtract Unite block))']; 1Y@Aixx
ddeexec(TP_COMMAND,cmd); NzOo0tz:
cmd =['(property:apply-name Lens "Lens")']; V(6Z3g
ddeexec(TP_COMMAND,cmd); 8b -Q F
N<|Nwq:NN
%Close the DDE connection DB:+E|vSD
ddeterm(TP_COMMAND); s1NKLt
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看看吧
