Patents by Inventor Paolo Di Trapani

Paolo Di Trapani 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: 10267492
    Abstract: An illumination device for synthesizing light from an object at virtually infinite distance comprises a primary light source configured to emit a primary light, a concentrator positioned downstream the primary light source and configured to reduce the divergence of the primary light, an emitting surface positioned downstream the concentrator, and an absorber made of light-absorbing material positioned upstream the emitting surface and configured to absorb light rays which cross the emitting surface in an upstream direction and which, in the absence of the absorber would not be directed toward the primary light source, wherein the primary light source, the concentrator, the emitting surface and the absorber are configured so that they produces from the primary light an output light that exits the emitting surface with a luminance profile which is spatially uniform across the emitting surface, and has a narrow peak in the polar-angle distribution around an output-light direction.
    Type: Grant
    Filed: May 13, 2015
    Date of Patent: April 23, 2019
    Assignee: CoeLux S.r.l.
    Inventor: Paolo Di Trapani
  • Publication number: 20190101263
    Abstract: A lighting system (1) for in particular forming a room edge (12) of a room comprises an enlarged sky-perception providing unit (2) with a light transparent panel (3) and a mirror unit (13) with a reflective face (13A) forming an inner edge (14), the lighting system further comprises a light source (41) configured to emit a direct light beam (43) through the light transparent panel (3) onto the mirror unit (13) such that the transmitted portion (9) of the light beam is reflected completely by the reflective face (13A), thereby creating a reflected direct light beam (17) in particular for imitating a sun beam.
    Type: Application
    Filed: March 7, 2016
    Publication date: April 4, 2019
    Inventors: Paolo Di Trapani, Davide Magatti
  • Publication number: 20190079220
    Abstract: In an aspect, a chromatic facade unit for being attached to a wall (1A) of a building (1) is disclosed that can form a facade (3) of the wall (1A). The chromatic facade unit (11) comprises a support structure (15), a chromatic reflective layer (17) formed on the support structure (15), the chromatic reflective layer (17) comprising reflective layer (43) and a chromatic diffusing layer (41), wherein the chromatic diffusing layer (41) is configured to provide for a specular reflectance that is larger in the red than in the blue and for a diffuse reflectance that is larger in the blue than in the red, and the reflective layer (43) is configured to reflect visible light having passed through the chromatic diffusing layer (41).
    Type: Application
    Filed: July 15, 2016
    Publication date: March 14, 2019
    Inventors: Paolo Di Trapani, Davide Magatti
  • 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
  • Patent number: 10202767
    Abstract: A lighting system to simulate a window open to the sky and comprising an optical system including: a visible optical source, which emits visible optical radiation; and a chromatic optical device, which includes a diffusion region and defines a first emission surface arranged downstream of the diffusion region. The chromatic device receives the visible optical radiation and generates, on the first emission surface, a visible output beam, which has an angular luminance profile that exhibits a peak with FWHM below 20° in two planes, mutually orthogonal and containing the direction of maximum luminance. In each point of the first emission surface, the visible output beam comprises a direct component, emitted in the direction of the luminance peak, and a diffuse component emitted at angles that differ by more than 40° from the direction of the direct component. The CCT of the diffuse component is at least 1.2 times higher than the CCT of the direct component.
    Type: Grant
    Filed: November 11, 2016
    Date of Patent: February 12, 2019
    Assignee: CoeLux S.r.l.
    Inventor: Paolo Di Trapani
  • Patent number: 10174890
    Abstract: An optical system (2A) is disclosed for receiving and collimating light, wherein the optical system (2A) comprises a collimation unit (200) comprising at least one parabolic interface (220, 230) that defines an inlet opening (212) and an outlet opening (214), wherein the at least one parabolic interface (220, 230) is configured to reflect light entering through the inlet opening (212) through the outlet opening (214) and limit the angular spread of the light to an acceptance angle (?CPC) associated with the at least one parabolic interface (220, 230); and a homogenization unit (300) for homogenizing the light emerging from the collimation unit (200), the homogenization unit (300) comprising a lens array with pairs of a first lens and a second lens, wherein the lens array is configured such that light from the outlet opening (214) collected by a first lens illuminates the respective second lens to provide for a continuously emitting output aperture.
    Type: Grant
    Filed: May 13, 2014
    Date of Patent: January 8, 2019
    Assignee: CoeLux S.r.l.
    Inventors: Paolo Di Trapani, Davide Magatti
  • Patent number: 10161596
    Abstract: Chromatic components are presented which alleviate the usage in various applications in that this chromatic component is, according to a first aspect of the present application, made-up of a mirroring surface and a diffusing layer in front of the mirroring surface, which preferentially scatters short-wavelength components of impinging light with respect to long-wavelength components of the impinging light, and in that according to another aspect, the chromatic component is made up of a stratified-glass panel which comprises two less sheets sandwiching an adhesive transparent polymeric film wherein the adhesive transparent polymeric film forms a diffusing layer which preferentially scatters short-wavelength components of light passing the stratified-glass panel with respect to long-wavelength components of this light with respect to long-wavelength components of the same.
    Type: Grant
    Filed: May 13, 2014
    Date of Patent: December 25, 2018
    Assignee: CoeLux S.r.l.
    Inventor: Paolo Di Trapani
  • Publication number: 20180345630
    Abstract: A chromatic stratified panel structure (100) for generating a sun-sky-imitating effect in lighting systems (1) comprises two cover panels (102, 104) at least one of which being a transparent panel; an adhesive transparent polymeric layer (106) sandwiched between the two inner faces of the two cover panels; and at least one nanoparticle-based Rayleigh-like diffusing coating (108) applied to an inner face of at least one of the two cover panels (102, 104) and/or to a face of the adhesive transparent polymeric layer (106) and forming an interlayer between one of the cover panels (102, 104) and the adhesive transparent polymeric layer (106).
    Type: Application
    Filed: November 15, 2016
    Publication date: December 6, 2018
    Inventors: Paolo Di Trapani, Franco Folcio, Simone Bonanomi
  • 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: 20180320376
    Abstract: A lighting system to simulate a window open to the sky and comprising an optical system including: a visible optical source, which emits visible optical radiation; and a chromatic optical device, which includes a diffusion region and defines a first emission surface arranged downstream of the diffusion region. The chromatic device receives the visible optical radiation and generates, on the first emission surface, a visible output beam, which has an angular luminance profile that exhibits a peak with FWHM below 20° in two planes, mutually orthogonal and containing the direction of maximum luminance. In each point of the first emission surface, the visible output beam comprises a direct component, emitted in the direction of the luminance peak, and a diffuse component emitted at angles that differ by more than 40° from the direction of the direct component. The CCT of the diffuse component is at least 1.2 times higher than the CCT of the direct component.
    Type: Application
    Filed: November 11, 2016
    Publication date: November 8, 2018
    Inventor: Paolo Di Trapani
  • Patent number: 10088125
    Abstract: An illumination system (1, 100, 200, 300) for providing an optically widened perception comprises a reflector unit (6, 206, 306) comprising a reflective surface (8A) and a luminous layer (10, 210, 310) for homogenously emitting diffuse light at a first color, the luminous layer (10, 210, 310) extending in front of the reflective surface (8A) and comprising a visible front area section (10A, 210A, 310A) of the reflector unit (6, 206, 306), which extends up to a first boundary (12A, 310A) and through which the diffuse light is emitted.
    Type: Grant
    Filed: February 23, 2015
    Date of Patent: October 2, 2018
    Assignee: CoeLux S.r.l.
    Inventors: Paolo Di Trapani, Davide Magatti
  • Patent number: 10077884
    Abstract: A system for illuminating an environment with light that simulates natural light includes: a first light source which emits a beam of visible light; a diffused-light generator delimited by an inner surface, which receives the light beam, and an outer surface, the diffused-light generator being at least partially transparent to a long wavelength component of the beam of visible light. The diffused-light generator transmits diffused light from a short wavelength component of the beam of visible light, through the outer surface, the correlated color temperature of the transmitted light being lower than the CCT of the visible diffused light. The lighting system includes a dark box which hosts the first light source and is optically coupled to the environment via the diffused-light generator.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: September 18, 2018
    Assignee: COELUX S.R.L.
    Inventors: Paolo Di Trapani, Davide Magatti
  • Publication number: 20180259155
    Abstract: An artificial illumination device for generating natural light similar to that from the sun and the sky comprises a direct-light source comprising a first emitting surface and configured to produce, from primary light, direct light exiting the first emitting surface into a direct-light direction at low divergence, the direct-light source comprising a plurality of pairs of a first light-emitting device positioned upstream the first emitting surface and configured to emit the primary light and a collimator configured to collimate the primary light emitted by the first light-emitting device along the direct-light direction; and a diffused-light generator configured to cause diffused light at a second emitting surface.
    Type: Application
    Filed: October 4, 2017
    Publication date: September 13, 2018
    Inventor: Paolo Di Trapani
  • 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: 20180210120
    Abstract: In an aspect, an illumination system (100) is disclosed to comprise a light source (102) configured to generate a light beam (103), and a chromatic reflective unit (1) for being illuminated by the light beam (103). The chromatic reflective unit (1) comprises a plurality of non-coplanar reflective surface sections (3?), and a chromatic diffusing layer (5) comprises a plurality of nanoparticles (37) embedded in a matrix (39), wherein the chromatic diffusing layer (5) is provided upstream of the plurality of reflective surface sections (3?) such that at least a portion of the light beam (103) passes through the chromatic diffusing layer (5) before and after being reflected by the plurality of non-coplanar reflective surface sections (3?). Chromatic diffusing layer (5) is further configured to provide for—together with non-coplanar reflective surface sections (3?)—a specular reflectance that is larger in the red than in the blue and for a diffuse reflectance that is larger in the blue than in the red.
    Type: Application
    Filed: July 15, 2015
    Publication date: July 26, 2018
    Inventors: Paolo Di Trapani, Davide Magatti
  • 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
  • Publication number: 20180203165
    Abstract: In an aspect, a chromatic reflective unit (1) comprises a support structure (7) comprising a plurality of non-coplanar surface sections (7?), a reflective layer (3) formed on the plurality of non-coplanar surface sections (7?), thereby forming a plurality of non-coplanar reflective surface sections (3?), respectively associated with one of the plurality of non-coplanar surface sections (7?), and a chromatic diffusing layer (5) having a back side provided at the reflective surface sections (3?) and a front side for being illuminated by incident light (9), wherein the chromatic diffusing layer (5) comprises a plurality of nanoparticles (37) embedded in a matrix (39), and is configured to provide for—together with non-coplanar reflective surface sections (3?)—a specular reflectance that is larger in the red than in the blue and for a diffuse reflectance that is larger in the blue than in the red.
    Type: Application
    Filed: July 15, 2015
    Publication date: July 19, 2018
    Inventors: Paolo Di Trapani, Davide Magatti
  • Publication number: 20180112111
    Abstract: A composite system for light diffusion comprises a matrix of a material that is transparent to light; the matrix contains a dispersion of scattering elements having a core that is a nanocluster of inorganic nanoparticles, and a shell comprising silane compounds and dispersing agents; the nanocluster having average dimensions in the range of 20 nm to 300 nm.
    Type: Application
    Filed: March 18, 2016
    Publication date: April 26, 2018
    Inventors: Franco FOLCIO, Antonio Bernardo DI GREGORIO, Paolo DI TRAPANI
  • 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
  • Patent number: RE47363
    Abstract: An embodiment of 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 10 nm?d?240 nm; wherein: the ratio between the blue and red scattering optical densities ??Log [T(450 nm)]/Log [T(630 nm)] of said diffuser falls in the range 5???2.5, where T(?) is the Monochromatic Normalized Collinear Transmittance; in at least one propagation direction, said Monochromatic Normalized Collinear Transmittance is T(450 nm)?0.4; in at least one propagation direction said Monochromatic Normalized Collinear Transmittance is T(450 nm)?0.9, said propagation direction being the same or different from that at which said Monochromatic Normalized Collinear Transmittance is T(450 mm)?0.4.
    Type: Grant
    Filed: April 19, 2017
    Date of Patent: April 23, 2019
    Assignee: CoeLux S.r.l.
    Inventors: Paolo Di Trapani, Alessandro Averchi, Marta Cecilia Pigazzini