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长剩	2012-08-15 16:49
matlab画准直透镜曲线？最近老师让用matlab画一个准直照明透镜的曲线，有没有人做过类似的事情，请帮忙，求助！！急！！！具体透镜的曲线是这篇文章里的Fig.5 `m V(: F`;q9<NYRW

长剩	2012-08-16 09:32
自己顶一下，请大家帮帮忙

565330091	2012-09-02 10:14
我也不懂，所以顶一下了

lurunhua	2012-10-19 21:42
看看呵呵

lurunhua	2012-10-19 21:42
看看呵呵

liuk2009	2012-10-27 10:27
看看吧

guapiqlh	2013-01-16 10:03
分段画

cool699	2013-03-04 11:08
謝謝大大的分享

pugongying	2013-03-06 16:24
看看吧

宋凡	2013-03-25 10:58
謝謝你的分享

2102	2013-04-16 22:51
謝謝大大的分享

gsh1128	2013-06-24 16:26
算出来也就自然画出来了啊

ciomplj	2014-06-22 22:53
谢谢哈~

hjg888	2014-09-25 09:23
看一下

zouzili	2014-12-29 20:53
下来看看

whyhao99	2015-07-15 19:01
学习一下

wenge	2016-01-11 11:25
看看吧

liunian	2016-07-13 15:15
看看e:matlab画准直透镜曲线？

liunian

2016-07-13 15:19

程序如下：
% By Ruibin 08-9-25
% Instruction：This program help design LED collimating lens , feedback aspheric parameters and several chief dimensions.

clear all;clc

% The Frist Step: Define independent parameters
r=3.25;               %选择开孔半径
R=4.25;               %定义曲面底部半径
d=1;                  %设置透镜前方平板高度
n=1.4935;             %定义材料折射率
dividing_angle=24;    %定义Core与TIR的分界角
min_angle=1;          %设置计算精度
N=4;                  %设定拟合非球面系数阶数

% The Second Step：Caculate induced variable
angles_Core=(dividing_angle:-min_angle:0);angles_TIR=(90:-min_angle:dividing_angle);
num_Core=length(angles_Core);num_TIR=length(angles_TIR);
for i=1:(num_Core)
a_Core(i)=(angles_Core(i)*pi/180);
k1(i)=cot(a_Core(i));
k2(i)=(-k1(i)+(n^2*k1(i)^2+n^2)^(1/2))/(n^2*k1(i)^2-k1(i)^2+n^2);
end
k1(num_Core)=999;k2(num_Core)=0;
for i=1:num_TIR
a_TIR(i)=(angles_TIR(i)*pi/180);
k3(i)=tan((pi/2+asin(cos(a_TIR(i))/n))/2);
k4(i)=tan(asin(cos(a_TIR(i))/n));
end
X0_TIR=R;X0_Core=r;Y0_TIR=0;Y0_Core=r*cot(a_Core(1));

% The Third Step:Solve functions
for i=1:num_Core                    %Solve the curve of Core
syms x;
f1=k1(i)*x;
f2=k2(i)*(x-X0_Core)+Y0_Core;
f=f1-f2;
x=double(solve(f));y=k1(i)*x;
X0_Core=x;Y0_Core=y;
Px_Core(i)=X0_Core;Py_Core(i)=Y0_Core;
end
for i=1:num_TIR                      %Solve the curve of TIR
syms x;
f1=k3(i)*(x-X0_TIR)+Y0_TIR;
f2=k4(i)*(x-r)+r*cot(a_TIR(i));
f=f1-f2;
x=double(solve(f));y=k3(i)*(x-X0_TIR)+Y0_TIR;
X0_TIR=x;Y0_TIR=y;
Px_TIR(i)=X0_TIR;Py_TIR(i)=Y0_TIR;
end

% The furth Step:Fitting the curve
P_Core=polyfit(Px_Core,Py_Core,4);
P_TIR=polyfit(Px_TIR,Py_TIR,4);

% The fifth Step:Feedback chief dimensions of the lens and Create it
%Feedback dimensions of the whole lens
result='透镜尺寸如下：'
Diameter_of_lens=2*Px_TIR(num_TIR)
Thickness_of_lens=Py_TIR(num_TIR)+d
Diameter_of_Core=2*r
Thickness_of_front_pannel=d
Bottom_thickness=R-r
Lowest_Core=P_Core(5)

%Feedback dimensions of Lens part TIR
result='TIR系数如下：'
Thickness=Py_TIR(num_TIR)-P_TIR(5)+d
Aperture=Px_TIR(num_TIR)
Obstruction=r
Position=P_TIR(5)
format short e;
Aspheric=[P_TIR(4) P_TIR(3) P_TIR(2) P_TIR(1)]
format short;

%DDE Connection
TP_COMMAND = ddeinit('TracePro','Scheme');
%Create TIR
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)))'];
ddeexec(TP_COMMAND,cmd);
cmd =['(entity:move TIR 0 0 -2.3712)'];
ddeexec(TP_COMMAND,cmd);
cmd =['(property:apply-name TIR "TIR")'];
ddeexec(TP_COMMAND,cmd);

%Feedback dimensions of Lens part TIR
result='Core系数如下：'
Thickness=Py_TIR(num_TIR)-P_Core(5)+d
Aperture=r
Obstruction='None'
Position=P_Core(5)
format short e;
Aspheric=[P_Core(4) P_Core(3) P_Core(2) P_Core(1)]
format short;
%Create Core
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)))'];
ddeexec(TP_COMMAND,cmd);
cmd =['(entity:move Core 0 0 5.9493)'];
ddeexec(TP_COMMAND,cmd);
cmd =['(property:apply-name Core "Core")'];
ddeexec(TP_COMMAND,cmd);

%Create Lens
cmd =['(define Unite (bool:unite TIR Core))'];
ddeexec(TP_COMMAND,cmd);
cmd =['(define block (insert:block 100 100 100))'];
ddeexec(TP_COMMAND,cmd);
cmd =['(entity:move block 0 0 -50)'];
ddeexec(TP_COMMAND,cmd);
cmd =['(define Lens (bool:subtract Unite block))'];
ddeexec(TP_COMMAND,cmd);
cmd =['(property:apply-name Lens "Lens")'];
ddeexec(TP_COMMAND,cmd);

%Close the DDE connection
ddeterm(TP_COMMAND);

leav01	2016-11-22 15:11
学习学习

zjnujhc	2016-12-27 10:42
謝謝大大的分享

斯文未遂	2017-07-18 17:32
不会肿么办

yfloy	2017-08-18 23:45
学习中不懂啊

青天如墨	2019-11-25 21:16
18楼真是大神

gxsqwmh	2021-02-24 16:10
论文中同样的问题..好难，我好菜哦

无人街角	2022-07-22 11:31
18楼程序报错啊

gongyichen	2023-02-06 11:58
有没有简单的图案看看呢，不然别人怎么能帮助你

吃鱼骨头的猫	2023-02-22 23:36
一样遇到这个情况了

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