| 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。 [v& _MQ
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是根据这篇论文编的matlab代码。 :I7MP
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哪位大神指点一下 p
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clear; 8[Qw8z5-
H=20; mB,7YZv
a=100; mPu5%%
itheta=0; urN& ."c
i=1; +`4|,K7'
for theta=0:0.0001:pi/2 V&>7i9lEz
if abs(integral(@(y)cos(y),itheta(i),theta)-1/a)<=0.00005 C&SYmYj^c
itheta(i+1)=theta; 6SmSu\lgV
i=i+1; *?8Q:@:
end +X&B'
end YnMph0\Y^
R=30; x=Ru@n K;
r=0; O{4 m-;
for i=1:a );6zV_^!
r(i+1)=sqrt(R^2/a+r(i)^2); hb_Ia]b
end U8c0C/
I(:,1)=sin(itheta); QO
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I(:,2)=cos(itheta);
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N=[0,1]; `b2 I)xC#
P=[0,5]; j `
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O=[0,1]; b)V[d8IA
n=1.5896; 7OZ s~6(
for i=1:a; *=
D$
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) ); @fY!@xSf
P(i+1,2)= P(i+1,1) * I(i+1,2) / I(i+1,1); RsY<j& 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); J3zb_!PPE
O(i+1,2)=(H-P(i+1,2)) / sqrt( (r(i)-P(i+1,1))^2 + (H-P(i+1,2))^2 ); KW 09 qar
N(i+1,=( O(i+1, - n*I(i+1,) / sqrt( 1 + n^2 - 2*n*dot(O(i+1,,I(i+1,) ); S38D
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end k`&mHSk-
P(:,3)=0; X3"V1@-i4$
plot(P(:,1),P(:,2)); igp4[Hj
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[attachment=109396]
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