Chromatic effect daylight management unit

Daylight management unit (200) comprising

• a light deflecting laminar element (210) comprising an inlet surface (211) and an outlet surface (212), the laminar element (210) comprising a first matrix (213) made of a first substantially non-absorbent host material at least with respect to electromagnetic radiation with a wavelength comprised in the visible light spectrum in which a plurality of reflecting elements (214) is incorporated, the plurality of reflecting elements (214) being arranged and configured, in the configuration of use, to deflect upwards by reflection and direct towards the outlet surface (212) a light incident on the inlet surface (211) at a downward angle;
• a chromatic diffuse light generator (220) configured and arranged to produce a diffuse light having a correlated color temperature (CCT) greater than or equal to 6,500 K when illuminated by a collimated incident light having a correlated color temperature higher than or equal to 5,500 K;
• and
• wherein the chromatic diffuse light generator (220) comprises a second matrix (221) made of a second substantially non-absorbent host material at least with respect to electromagnetic radiation with a wavelength comprised in the visible light spectrum and having a host material refractive index (nh), in the second matrix (221) there being dispersed a plurality of nanometric diffusion elements (222) made of a substantially transparent or substantially non-absorbent material at least with respect to electromagnetic radiation with a wavelength comprised in the visible light spectrum and having a particle refractive index (np), different from the host material refractive index (nh), wherein a ratio (m≡np/nh) between the particle refractive index (np) and the host material refractive index (nh), a number (N) of nanometric elements per unit area and an average nanometric element size of the plurality of nanometric scattering elements referred to a diameter of an equivalent spherical particle and/or to a diameter of the smallest cylinder circumscribing them are selected to preferentially diffuse components of incident light at a small wavelength with respect to components of incident light at a large wavelength and to preferentially transmit components of incident light at a large wavelength with respect to components of incident light at a small wavelength;
• and/or
• wherein the chromatic diffuse light generator (220) is a layer of material having a greater regular transmittance for wavelengths of incident light comprised in the range of red than wavelengths of incident light comprised in the range of blue and a greater diffuse transmittance for wavelengths of incident light comprised in the range of blue than for wavelengths of incident light comprised in the range of red.

Daylight management unit (200) comprising

• a light deflecting laminar element (210) comprising an inlet surface (211) and an outlet surface (212), the laminar element (210) comprising a first matrix (213) made of a first substantially non-absorbent host material at least with respect to electromagnetic radiation with a wavelength comprised in the visible light spectrum in which a plurality of reflecting elements (214) is incorporated, the plurality of reflecting elements (214) being arranged and configured, in the configuration of use, to deflect upwards by reflection and direct towards the outlet surface (212) a light incident on the inlet surface (211) at a downward angle;
• a chromatic diffuse light generator (220) configured to generate a diffuse light having a correlated color temperature (CCT) greater than or equal to 6,500 K or configured and arranged to produce a diffuse light having a correlated color temperature (CCT) greater than or equal to 6,500 K when illuminated by a collimated incident light having a correlated color temperature higher than or equal to 5,500 K;
• and
• an achromatic scattered light generator (230) configured to increase the divergence of a light incident on its inlet surface (211) at a downward angle and which is redirected upwards in a manner substantially independent of the wavelength of the incident light.