Lunchtime beam geometry

The geometry is a so called corner reflector, reflects all rays back in the same angle,

should create a reflected beam. I checked the sun angle in Carrara, so the angle of

the geometry is fine, what defines its position in the quarry. there will be a kind of

non accesible zone around it, because it will become pretty hot, i guess.

The ray will be reflected around 1-1,5 hours in june and about 20-30 minutes in

dezember (if my calculations are right), when the sun is in the right position to make

the reflection work and then disappear.

I just guessed the size of the triangles, will research on that