|
|
程序如下： Z_ Y'#5o# % By Ruibin 08-9-25 0'YJczDq:7 % Instruction：This program help design LED collimating lens , feedback aspheric parameters and several chief dimensions. ]]3rSXs2}J )?c , & clear all;clc TU*EtE'g/ )S/=5Uc % The Frist Step: Define independent parameters }&= =;7,O r=3.25; %選擇開孔半徑 B;W%P.<. R=4.25; %定義曲面底部半徑 bSz7?NAp d=1; %設(shè)置透鏡前方平板高度 ,VSO;:Z n=1.4935; %定義材料折射率 F[`dX dividing_angle=24; %定義Core與TIR的分界角 <gfRAeXA min_angle=1; %設(shè)置計算精度 H\\FAOj N=4; %設(shè)定擬合非球面系數(shù)階數(shù) M} f(-,9 c %Cbq0+2 % The Second Step：Caculate induced variable Au}l^&,zN angles_Core=(dividing_angle:-min_angle:0);angles_TIR=(90:-min_angle:dividing_angle); x;\/Xj ; num_Core=length(angles_Core);num_TIR=length(angles_TIR); eF9GhwE= for i=1:(num_Core) G -+!h4p a_Core(i)=(angles_Core(i)*pi/180); pRL:,q\ k1(i)=cot(a_Core(i)); NY. * S6 k2(i)=(-k1(i)+(n^2*k1(i)^2+n^2)^(1/2))/(n^2*k1(i)^2-k1(i)^2+n^2); rD
|
