The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 18, 2020
Filed:
Mar. 24, 2017
Coelux S.r.l., Lomazzo (CO), IT;
Sandro Usseglio Nanot, Giaveno, IT;
Simone Bonanomi, Muggio, IT;
CoeLux S.r.l., Lomazzo, IT;
Abstract
A diffuser unit () for providing a chromatically tunable transmitted light () by scattering of light that is incident on the diffuser unit () by illumination with white light () comprises a scattering layer () with a plurality of nanoscale scattering elements () and a host material () separating the nanoscale scattering elements (). The diffuser unit () further comprises a pair of areal electrical contacts (') for providing an electric field () and at least one of the areal electrical contacts (′) is configured to be transparent in the visible wavelength range. The scattering layer () has a wavelength dependent ensemble light scattering cross-section amount within the visible wavelength range that depends on a relative refractive index between the nanoscale scattering elements () and the host material () associated to an illumination direction, and an effective size of the nanoscale scattering elements () associated to the illumination direction. The scattering layer () is configured to be adaptable in the ensemble light scattering cross-section amount by varying the relative refractive index and/or the effective size of the nanoscale scattering elements (), thereby providing a changeability in the spectrum of the transmitted light ().