perfect diffusion

perfect diffusion

1. (in lighting) The condition in which light flux is uniformly scattered in all directions so that the luminance (radiance) is equal in all directions.
2. (in room acoustics) The condition in which sound waves
References in classic literature ?
We meet as water meets water, or as two currents of air mix, with perfect diffusion and interpenetration of nature.
It may also be requested additional defined benefit CCTP including complete coverage areas and ensure perfect diffusion.