OPTICAL SKY-SUN DIFFUSER

摘要

There is described an illumination device comprising a broad band (white) artificial light source and a non-liquid chromatic diffuser transparent to visible light comprising a dispersion of elements of nanometrical dimensions of a first material with of certain refractive index in a second material with different refractive index, wherein the light is scattered producing a separation and different distribution between cold and hot components of the light originally produced by the source, according to a scattering process in "Rayleigh" regime. In particular, the artificial light source (110) includes a plurality of active elements which emit photons, and a plurality of lenses, each lens being optically coupled to a corresponding active element. The device allows illumination effects similar to those of natural outdoor environments to be reproduced in indoor environments.