| 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。 vnX~OVz2
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是根据这篇论文编的matlab代码。 \u 6/nvZ]N
i\ RB KF
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V j[,o
Vt$
哪位大神指点一下 A .<M*[{q
clear; P> 7PO~E.
H=20; KoFWI_(b
a=100; "}< baz
itheta=0; L0Z AF2O
i=1; 85+w\KuEY
for theta=0:0.0001:pi/2 M|7{ZE`Y
if abs(integral(@(y)cos(y),itheta(i),theta)-1/a)<=0.00005 DF"*[]^[
itheta(i+1)=theta; .y #>mXm>
i=i+1; {.r9l
end .L_ Hk
end VQpwHzh
R=30; 0Rh*SoYrC
r=0; &GI'-i
for i=1:a [ _&z+
r(i+1)=sqrt(R^2/a+r(i)^2);
;.~ D!
end 4& 9V
I(:,1)=sin(itheta); |PLWF[+t8
I(:,2)=cos(itheta); kyUG+ M
N=[0,1]; B)Dsen
P=[0,5]; N\x <'P4q
O=[0,1]; Kp/l2?J"
n=1.5896; {z8wFL \
for i=1:a; smuQ1.b
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) ); sQT<I]e
P(i+1,2)= P(i+1,1) * I(i+1,2) / I(i+1,1); z HvW@A'F
O(i+1,1)=( r(i) - P(i+1,1) ) / sqrt( (r(i)-P(i+1,1))^2 + (H-P(i+1,2))^2); /ASpAl[J
O(i+1,2)=(H-P(i+1,2)) / sqrt( (r(i)-P(i+1,1))^2 + (H-P(i+1,2))^2 ); 6,skF^
N(i+1,=( O(i+1, - n*I(i+1,) / sqrt( 1 + n^2 - 2*n*dot(O(i+1,,I(i+1,) ); ,v(ikPzd
end l/bZE.GJ
P(:,3)=0; 8*(|uX
plot(P(:,1),P(:,2)); HH^yruP\}
)'` @rq !
[attachment=109396]
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