Patents by Inventor Antonio Lotti

Antonio Lotti has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10222520
    Abstract: A chromatic diffusing layer (510) comprises a plurality of nanoparticles (37) embedded in a matrix (39), for Rayleigh-like scattering with an average size d in the range 10 nm?d?240 nm, and a ratio between the blue and red scattering optical densities Log [R(450 nm)]/Log [R(630 nm)] of said chromatic reflective unit falls in the range 5???2.5, where R(?) is the monochromatic normalized specular reflectance of the chromatic reflective unit, which is the ratio between the specular reflectance of the chromatic reflective unit and the specular reflectance of a reference sample identical to the chromatic reflective unit except for the fact that the chromatic diffusing layer does not contain nanoparticles with the size d in the range 10 nm?d?240 nm and for the direction normal to the reflective layer (508) of the chromatic reflective unit (506), the monochromatic normalized specular reflectance R(?) of the chromatic reflective unit at a wavelength of 450 nm is in the range from about 0.0025 to about 0.
    Type: Grant
    Filed: November 19, 2015
    Date of Patent: March 5, 2019
    Assignee: CoeLux S.r.l.
    Inventors: Paolo Di Trapani, Davide Magatti, Antonio Lotti
  • Publication number: 20180335188
    Abstract: A lighting system (100A, 100B) comprises a light source (102) for emitting a light beam stripe (220B) with a plurality of light emitting units (603, 803A, 803B) forming an array in the longitudinal direction (X), and an optical element (870) at the exit side of the light source (102) extending across the plurality of light emitting units, and configured to enlarge the beam divergence in the transversal direction.
    Type: Application
    Filed: November 19, 2016
    Publication date: November 22, 2018
    Inventors: Paolo Di Trapani, Davide Magatti, Antonio Lotti, Giorgio Gatti
  • Publication number: 20180246270
    Abstract: A light source (25) for emitting collimated light (29) in particular for a large area luminaire (21) comprises a light guide unit (43) comprising a plurality of light guide strips (91) configured for guiding light received at the at least one lateral coupling face (47), for example, by total internal reflection. The light guide strips comprise a plurality of localized light source regions (57) at a main front face (55A) for having light pass there through, wherein the light source regions (57) are provided along the light guide strip (91) within a non-source region (59). The light source (25) further comprising a plurality of light emitting units (41) for emitting light into the light guide strips (91) through respective portions of the at least one coupling face (47), and a collimation unit (45) extending along the main front face (55A) and comprising a plurality of collimating elements.
    Type: Application
    Filed: August 28, 2015
    Publication date: August 30, 2018
    Inventors: Paolo Di Trapani, Davide Magatti, Antonio Lotti, Michael Ragan Krames
  • Publication number: 20180203166
    Abstract: A chromatic diffusing layer (510) comprises a plurality of nanoparticles (37) embedded in a matrix (39), for Rayleigh-like scattering with an average size d in the range 10 nm?d?240 nm, and a ratio between the blue and red scattering optical densities Log [R(450 nm)]/Log [R(630 nm)] of said chromatic reflective unit falls in the range 5???2.5, where R(?) is the monochromatic normalized specular reflectance of the chromatic reflective unit, which is the ratio between the specular reflectance of the chromatic reflective unit and the specular reflectance of a reference sample identical to the chromatic reflective unit except for the fact that the chromatic diffusing layer does not contain nanoparticles with the size d in the range 10 nm?d?240 nm and for the direction normal to the reflective layer (508) of the chromatic reflective unit (506), the monochromatic normalized specular reflectance R(?) of the chromatic reflective unit at a wavelength of 450 nm is in the range from about 0.0025 to about 0.
    Type: Application
    Filed: November 19, 2015
    Publication date: July 19, 2018
    Inventors: Paolo Di Trapani, Davide Magatti, Antonio Lotti
  • Patent number: 9939563
    Abstract: A lighting system comprises a chromatic reflective unit (606), and a light source (602), wherein the chromatic reflective unit (606) is shaped as a rotational paraboloid or a portion of a rotational paraboloid, and the light source (602) is positioned close to or at the paraboloid focal position.
    Type: Grant
    Filed: July 15, 2016
    Date of Patent: April 10, 2018
    Assignee: CoeLux S.r.l.
    Inventors: Paolo Di Trapani, Davide Magatti, Antonio Lotti
  • Publication number: 20170016594
    Abstract: A lighting system comprises a chromatic reflective unit (606), and a light source (602), wherein the chromatic reflective unit (606) is shaped as a rotational paraboloid or a portion of a rotational paraboloid, and the light source (602) is positioned close to or at the paraboloid focal position.
    Type: Application
    Filed: July 15, 2016
    Publication date: January 19, 2017
    Inventors: Paolo Di Trapani, Davide Magatti, Antonio Lotti