Fig. 5
From: Do Leonardo da Vinci’s drawings, room acoustics and radio astronomy have anything in common?

Rays’ intensity level Lc,res(θ) [dB] on the caustic. α absorption coefficient of the reflector [12]
From: Do Leonardo da Vinci’s drawings, room acoustics and radio astronomy have anything in common?
Rays’ intensity level Lc,res(θ) [dB] on the caustic. α absorption coefficient of the reflector [12]