2.30. Prove that the irradiance on the wall of an integrating sphere (see figure) is a...

 

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2.30. Prove that the irradiance on the wall of an integrating sphere (see figure) is a constant if it is coated with a Lambertian diffusing material. An integrating sphere has a highly reflective diffuse coating inside. (Hint: Assume that a small Lambertian source is on the interior surface of the sphere.) dA Lambertian source Figure P2.30 2.30. Prove that the irradiance on the wall of an integrating sphere (see figure) is a constant if it is coated with a Lambertian diffusing material. An integrating sphere has a highly reflective diffuse coating inside. (Hint: Assume that a small Lambertian source is on the interior surface of the sphere.) dA Lambertian source Figure P2.30