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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.:

US 11067251 B1

PDFFull Text
Date of Patent:
Jul. 20, 2021

Filed:

May. 17, 2019

Illumination device

Applicant:

Coelux S.r.l., Lomazzo, IT;

Inventors:

Paolo Di Trapani, Cavallasca, IT;

Marta Cecilia Pigazzini, Esino Lario, IT;

Assignee:

CoeLux S.r.l., Lomazzo, IT;

Attorney:

DiBerardino McGovern IP Group LLC

Primary Examiner:

Evan P Dzierzynski

Int. Cl.
CPC ...
F21V 9/02 (2018.01); F21V 8/00 (2006.01); F21V 9/40 (2018.01); F21V 3/00 (2015.01); F21V 9/08 (2018.01); G02B 27/30 (2006.01); F21S 8/00 (2006.01); F21W 121/00 (2006.01); F21W 131/103 (2006.01); H01L 33/50 (2010.01); F21Y 115/30 (2016.01); F21K 9/61 (2016.01); F21Y 115/10 (2016.01);
U.S. Cl.
CPC ...
F21V 9/02 (2013.01); F21V 3/00 (2013.01); F21V 9/08 (2013.01); F21V 9/40 (2018.02); G02B 6/001 (2013.01); G02B 6/0041 (2013.01); G02B 6/0096 (2013.01); G02B 27/30 (2013.01); F21K 9/61 (2016.08); F21S 8/033 (2013.01); F21W 2121/00 (2013.01); F21W 2131/103 (2013.01); F21Y 2115/10 (2016.08); F21Y 2115/30 (2016.08); H01L 33/50 (2013.01); H01L 2933/0091 (2013.01);
Abstract

An embodiment of an illumination device comprising a broad band 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. The device allows illumination effects similar to those of natural outdoor environments to be reproduced in indoor environments.

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