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| liunian | 2016-07-13 15:19 |  
| 程序如下: vj]h[=: % By Ruibin 08-9-25 BWB}bq
 % Instruction:This program help design LED collimating lens , feedback aspheric parameters and several chief dimensions. BxZ7Bk
 8@RJ>
 clear all;clc SwaPRAF
 A]drNFE
 % The Frist Step: Define independent parameters q!~DCv	df
 r=3.25;               %选择开孔半径 VZtFgN$J
 R=4.25;               %定义曲面底部半径 $D	D	esy3
 d=1;                  %设置透镜前方平板高度 $Zkk14
 n=1.4935;             %定义材料折射率 02,.UqCz
 dividing_angle=24;    %定义Core与TIR的分界角 ]v?jfy
 min_angle=1;          %设置计算精度 ""_B3'
 N=4;                  %设定拟合非球面系数阶数 >p"	U|
 F[W0gjUc
 % The Second Step:Caculate induced variable 4X+I2CD
 angles_Core=(dividing_angle:-min_angle:0);angles_TIR=(90:-min_angle:dividing_angle); %%)y4>I
 num_Core=length(angles_Core);num_TIR=length(angles_TIR); v!$?;"d+
 for i=1:(num_Core) !\O!Du
 a_Core(i)=(angles_Core(i)*pi/180); TmM~uc7mj
 k1(i)=cot(a_Core(i)); mgM"u94-]
 k2(i)=(-k1(i)+(n^2*k1(i)^2+n^2)^(1/2))/(n^2*k1(i)^2-k1(i)^2+n^2); 4I|pkdF_
 end ;d_<6|*M
 k1(num_Core)=999;k2(num_Core)=0; 6s
~!B{Q
 for i=1:num_TIR nV`W0r(f'
 a_TIR(i)=(angles_TIR(i)*pi/180); "CREls,
 k3(i)=tan((pi/2+asin(cos(a_TIR(i))/n))/2); JZE@W-2
 k4(i)=tan(asin(cos(a_TIR(i))/n)); \w(0k^<7
 end wbh=v;
 X0_TIR=R;X0_Core=r;Y0_TIR=0;Y0_Core=r*cot(a_Core(1)); Wt=@6w&
 d\tY-X3
 % The Third Step:Solve functions G%=
gCR
 for i=1:num_Core                    %Solve the curve of Core `	K0PLxSv
 syms x; GCv1x->
 f1=k1(i)*x; 
C?'s
 f2=k2(i)*(x-X0_Core)+Y0_Core; rw0s$~'
 f=f1-f2; W"CG&.
 x=double(solve(f));y=k1(i)*x; `R -?+76?
 X0_Core=x;Y0_Core=y; V7O7"Q^q
 Px_Core(i)=X0_Core;Py_Core(i)=Y0_Core; Np+pJc1
 end "V`DhOG&
 for i=1:num_TIR                      %Solve the curve of TIR  pK"Z9y&
 syms x; UN:qE oS
 f1=k3(i)*(x-X0_TIR)+Y0_TIR; e#k)F.TZ:%
 f2=k4(i)*(x-r)+r*cot(a_TIR(i)); {K?e6-N(z
 f=f1-f2; ?8U]UM6Tu4
 x=double(solve(f));y=k3(i)*(x-X0_TIR)+Y0_TIR; A4b+:MQ*OX
 X0_TIR=x;Y0_TIR=y; oL<5hN*D
 Px_TIR(i)=X0_TIR;Py_TIR(i)=Y0_TIR; 3"k n5)x
 end {LCKt/Z>P
 UISsiiG(
 % The furth Step:Fitting the curve "}H2dn2n
 P_Core=polyfit(Px_Core,Py_Core,4); bka%W@Y%
 P_TIR=polyfit(Px_TIR,Py_TIR,4); v-Q>I5D;:
 J	|UFuD
 % The fifth Step:Feedback chief dimensions of the lens and Create it *&R|0I{>
 %Feedback dimensions of the whole lens {MDM= ;WP_
 result='透镜尺寸如下:' B7.&yXWgn
 Diameter_of_lens=2*Px_TIR(num_TIR) <E^;RG
 Thickness_of_lens=Py_TIR(num_TIR)+d _9Rj,
 Diameter_of_Core=2*r H\9ePo\b~
 Thickness_of_front_pannel=d GZY:EHuz[
 Bottom_thickness=R-r 3*(><<ZC
 Lowest_Core=P_Core(5) t=s.w(3t
 8LXK3D}?3
 %Feedback dimensions of Lens part TIR I9`ZK2S
 result='TIR系数如下:' !67xN?b
 Thickness=Py_TIR(num_TIR)-P_TIR(5)+d imhE=6{
 Aperture=Px_TIR(num_TIR) h]&~yuI>
 Obstruction=r t}OzF	cyqN
 Position=P_TIR(5) h|lH`m^
 format short e; /V#?d
 Aspheric=[P_TIR(4) P_TIR(3) P_TIR(2) P_TIR(1)] R|Uu
 format short; y-gXGvZ
 /WK1( B:
 %DDE Connection RUVrX`u*(
 TP_COMMAND = ddeinit('TracePro','Scheme'); g@Y]$ey%A
 %Create TIR D>Rlm,U
 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)))']; ]&P 4QT)f
 ddeexec(TP_COMMAND,cmd); {/>uc,8O
 cmd =['(entity:move TIR 0 0 -2.3712)']; %,aSD#l`f
 ddeexec(TP_COMMAND,cmd); *m`x/_y+
 cmd =['(property:apply-name TIR "TIR")']; 'R42N3|F
 ddeexec(TP_COMMAND,cmd); HYY+Fv5
 %5@>
nC?`[
 %Feedback dimensions of Lens part TIR (*V!V3E3#
 result='Core系数如下:' Ag8lI+
h
 Thickness=Py_TIR(num_TIR)-P_Core(5)+d !:tr\L	{
 Aperture=r _?$w8	S%
 Obstruction='None' hPCSAo!|
 Position=P_Core(5) 2t>>08T
 format short e; IH5^M74b
 Aspheric=[P_Core(4) P_Core(3) P_Core(2) P_Core(1)] Xf
mN/j2
 format short; X gtn}7N.
 %Create Core B[+b%a3
 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)))']; OqmW	lN.?
 ddeexec(TP_COMMAND,cmd); pigu]mj
 cmd =['(entity:move Core 0 0 5.9493)']; 1'dZ?`O
 ddeexec(TP_COMMAND,cmd); &4l!2
 cmd =['(property:apply-name Core "Core")']; &SPr#OkW
 ddeexec(TP_COMMAND,cmd); `Ao"fRv#
 wgq=9\+&
 %Create Lens wjT#D|soI
 cmd =['(define Unite (bool:unite TIR Core))']; \]\ h,Y8
 ddeexec(TP_COMMAND,cmd); lE8_Q *ev
 cmd =['(define block (insert:block 100 100 100))']; 7_rDNK@e
 ddeexec(TP_COMMAND,cmd); ,Z7Ky*<j
 cmd =['(entity:move block 0 0 -50)']; AgUjC
 ddeexec(TP_COMMAND,cmd); rL?{+S]&^)
 cmd =['(define Lens (bool:subtract Unite block))']; #BZ5Mxzj
 ddeexec(TP_COMMAND,cmd); P4c}@Mq3
 cmd =['(property:apply-name Lens "Lens")']; .SSPJY(
 ddeexec(TP_COMMAND,cmd); .G"T;w6d
 HW"5MZ8E
 %Close the DDE connection PQz[IZ
 ddeterm(TP_COMMAND); v3kT~uv
 
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