| chao183 |
2021-10-21 21:33 |
用matlab计算均匀照度的透镜自由曲线后，为什么用light tools模拟照度却不均匀
light tools模拟时都是中心暗，周围有亮圆环。模拟光源为朗伯点光源。 aS [[
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是根据这篇论文编的matlab代码。 RAO+<m
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哪位大神指点一下 H+[?{+"#@l
clear; 60+ zoL'
H=20; s/"bH3Ob9v
a=100; +_]Ui| l
itheta=0; *$eH3nn6g
i=1; w5m /[Z
for theta=0:0.0001:pi/2 h[remR# 3\
if abs(integral(@(y)cos(y),itheta(i),theta)-1/a)<=0.00005 & BPYlfB1
itheta(i+1)=theta; VIp|U{
i=i+1; k$kE5kh,S
end (e7!p=D
end o,rF 15
R=30; 5T;LWS
r=0; w 0BphK[
for i=1:a 0>|q[ SC
r(i+1)=sqrt(R^2/a+r(i)^2); qd0G sr}j
end %%No XW
I(:,1)=sin(itheta); 2w.FC
I(:,2)=cos(itheta); u n v:sV#b
N=[0,1]; `jE[Xt"@
P=[0,5]; {"wF;*U.V
O=[0,1]; 5eTA]
n=1.5896; ]K(a32V CH
for i=1:a; e@h{Ns.1-
P(i+1,1)=( N(i,1)*P(i,1) + N(i,2)*P(i,2) ) / ( N(i,1) + N(i,2)*I(i+1,2)/I(i+1,1) ); G+c&e:ip<
P(i+1,2)= P(i+1,1) * I(i+1,2) / I(i+1,1); }WsPu o
O(i+1,1)=( r(i) - P(i+1,1) ) / sqrt( (r(i)-P(i+1,1))^2 + (H-P(i+1,2))^2); E/: U,u{
O(i+1,2)=(H-P(i+1,2)) / sqrt( (r(i)-P(i+1,1))^2 + (H-P(i+1,2))^2 ); 5sY $
N(i+1,=( O(i+1, - n*I(i+1,) / sqrt( 1 + n^2 - 2*n*dot(O(i+1,,I(i+1,) ); eHgr"f*7
end /!Rva"
P(:,3)=0; wC{sP"D
plot(P(:,1),P(:,2)); > j?5?J"
oywiX@]~7
[attachment=109396]
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