I found an exhaustive answer in the Geometrical Theory of Diffraction (GTD)!
There is a substantial difference between edge and wedge: an edge it's i.e. a border of a polygon and the diffraction caused by it it's always a straight line.
A Wedge, it's an edge between two polygons, and the...
What is the pattern made of balls?
I have some hypotesis: Something related to the CCD, a diffraction pattern caused by some dirt on the lens, or, but i think it's absurd, the Bravais lattice of the lens?
I'm very curious!
I'm doing some experiences with a laser about diffraction caused by an edge, and I have some question to ask.
Unfortunately, I've found very few literature (almost nothing) about diffraction caused by an EDGE.
Everyone explains well diffraction caused by slits; someone explains diffraction...
Ok... maybe i've solved it but i still have some doubt.
The answer should be: It's 400(pi) W/m^2 in both cases of 45° and 0° because the surface is Lambertian.
The irradiance on a point of the surface is 1000(pi) W/m^2, then the reflected radiosity is 400(pi) in every direction because it's...
The exercise i have is as follows:
A flat plate (measuring 0.5 meter by 0.5 meter) is placed on the highest mountain in the landscape, exactly horizontal. It is a cloudy day, such that the sky has a uniform radiance of 1000 W/ m^2 sr.
The plate has a uniform Lambertian reflectance p=0.4...