| 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。 qix$ } (P
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是根据这篇论文编的matlab代码。 AZ9;6Df
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哪位大神指点一下 A=Y A #0
clear; A qA.,;G
H=20; /Hs\`Kg"!
a=100; Iq0[Kd0.j
itheta=0; }ed{8"bj
i=1; |C"zK
for theta=0:0.0001:pi/2 G$^u2wz.
if abs(integral(@(y)cos(y),itheta(i),theta)-1/a)<=0.00005 9bQD"%ha=d
itheta(i+1)=theta; FUP0X2P
i=i+1; s/l>P~3=
end en_W4\7^
end bhl9:`s
R=30; Yu}[RXC(=
r=0; <Fi*wV
for i=1:a | |u
r(i+1)=sqrt(R^2/a+r(i)^2); }Ug O$1
end * lJk k
I(:,1)=sin(itheta); Ueu~803~
I(:,2)=cos(itheta); qOTo p-
N=[0,1]; HdR TdV
P=[0,5]; OcE,E6LD
O=[0,1]; wX 4gyr
n=1.5896; , rNv}
for i=1:a; dw-o71(1d
P(i+1,1)=( N(i,1)*P(i,1) + N(i,2)*P(i,2) ) / ( N(i,1) + N(i,2)*I(i+1,2)/I(i+1,1) ); S l`F`
P(i+1,2)= P(i+1,1) * I(i+1,2) / I(i+1,1); :caXQ)
O(i+1,1)=( r(i) - P(i+1,1) ) / sqrt( (r(i)-P(i+1,1))^2 + (H-P(i+1,2))^2); k|^YYi= xF
O(i+1,2)=(H-P(i+1,2)) / sqrt( (r(i)-P(i+1,1))^2 + (H-P(i+1,2))^2 ); kz"QS.${
N(i+1,=( O(i+1, - n*I(i+1,) / sqrt( 1 + n^2 - 2*n*dot(O(i+1,,I(i+1,) ); n%ypxY0
end m;JB=MZ=m
P(:,3)=0; UL.YDU)
plot(P(:,1),P(:,2)); ]&?8l:3-G
qoP /` Y6
[attachment=109396]
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