A solid optical sky-sun diffuser which comprises a transparent solid matrix embedding a dispersion of transparent nanoparticles having an average size d in the range 10nm ≤ d ≤ 240nm; wherein: the ratio between the blue and red scattering optical densities γ ≡ Log[T (450nm)]/ Log[T (630/nm)] of said diffuser falls in the range 5 ≥ γ ≥ 2.5, where T(λ) is the Monochromatic Normalized Collinear Transmittance; in at least one propagation direction, said Monochromatic Normalized Collinear Transmittance is T(450nm) ≥ 0.4; in at least one propagation direction said Monochromatic Normalized Collinear Transmittance is T(450nm) ≤ 0.9 said propagation direction being the same or different from that at which said Monochromatic Normalized Collinear Transmittance is T(450nm) ≥ 0.4.
Di Trapani, P., Simonutti, R., Averchi, A., & Pigazzini, M.C. (2008)Optical sky-sun diffuser. . Brevetto No. MI2008A001135.
Citazione: | Di Trapani, P., Simonutti, R., Averchi, A., & Pigazzini, M.C. (2008)Optical sky-sun diffuser. . Brevetto No. MI2008A001135. | |
Titolo: | Optical sky-sun diffuser | |
Autori: | Di Trapani, P; Simonutti, R; Averchi, A; Pigazzini, MC | |
Autori: | ||
Data di pubblicazione: | 24-giu-2008 | |
Numero di deposito: | MI2008A001135 | |
International Patent Classification: | Chemistry, Metallurgy | |
Rilevanza: | Rilevanza internazionale | |
Data di pubblicazione (Brevetti): | 2009 | |
Numero di pubblicazione (Brevetti): | WO/2009/156348 | |
Enti collegati: | Altro titolare | |
Appare nelle tipologie: | 06 - Brevetti |