Patents by Inventor Rolando Ferrini
Rolando Ferrini 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).
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Publication number: 20210333448Abstract: A translucent construction element comprising a layer of translucent substrate, which contains a surface structured with nanoplanes of inclined angle relative to the substrate plane, and coated with an interrupted metallic layer covering at least a part of said nanoplanes, is characterized by a high density of interruptions in the metallic layer of low thickness; the periodicity of interruptions in the metallic layer generally is from the range 50 to 1000 nm and the thickness of the metallic layer typically is from the range 1 to 50 nm. The construction element may be integrated, for example, into windows, plastic films or sheets or glazings, especially for the purpose of light management.Type: ApplicationFiled: July 9, 2021Publication date: October 28, 2021Inventors: Andreas HAFNER, Adrian Von Muehlenen, Olivier Enger, Benjamin Gallinet, Rolando Ferrini, Nenad Marjanovic, Martin Stalder, Fabian Luetolf, Guillaume Basset
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Patent number: 11022272Abstract: An optical film made from a light-permeable material includes a surface and an optical microstructure having a plurality of elevations. The elevations of the microstructure protrude from a reference plane, which is parallel to the surface. The elevations of the microstructure each have a flank section which adjoins the reference plane and forms a uniform angle with the reference plane. The uniform angle is in a range from about 33° to about 42° or in a range from about 35° to about 40°. The optical film according to the invention makes it possible to provide a light fixture with relatively strong glare suppression and at the same time to produce a preferred light distribution curve (LDC). In addition, it can be relatively flexibly moulded and cost-effectively produced.Type: GrantFiled: September 22, 2016Date of Patent: June 1, 2021Assignee: REGENT BELEUCHTUNGSKÖRPER AGInventors: Kornelius Reutter, Oscar Fernandez, Rolando Ferrini, Christian Hochfilzer, Thierry Dreyfus
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Patent number: 11022271Abstract: An optical layer made from a light-permeable material includes a surface and an optical microstructure having a plurality of elevations. The elevations of the microstructure protrude from a reference plane, which is parallel to the surface. The elevations of the microstructure each have a flank section which adjoins the reference plane and forms a uniform angle with the reference plane. The uniform angle is in a range from about 10° to about 26° or in a range from about 13° to about 23° or in a range from about 15° to about 20°. The optical layer according to the invention makes it possible for a light fixture to achieve a high light output rate (LOR) at the same time to produce a preferred light distribution curve (LDC).Type: GrantFiled: September 22, 2016Date of Patent: June 1, 2021Assignee: REGENT BELEUCHTUNGSKÖRPER AGInventors: Kornelius Reutter, Oscar Fernandez, Rolando Ferrini, Christian Hochfilzer, Thierry Dreyfus
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Publication number: 20200363323Abstract: An ultra-thin spectrometer is disclosed for measuring spectra of a sample, including an optical layer including micro-optical elements having each an input acceptance cone of is less than 30°. At least one of the micro-optical elements is configured to provide a deflected light beam that is directed onto at least one of the photodetectors; The spectrometer includes least one continuous-shaped narrow spectral band filter element arranged between the array of micro-optical elements and the plurality of photodetectors, and defines a plurality of different filter portions that have different peak transmission wavelengths for each of the deflected light beams. The spectral resolution of the spectrometer, in its whole spectral width, is less than 50 nm. Also disclosed is a method to determine the spectrum of an incident light beam on the spectrometer.Type: ApplicationFiled: November 20, 2018Publication date: November 19, 2020Inventors: Giorgio QUARANTA, Guillaume BASSET, Martin STALDER, Benjamin GALLINET, Rolando FERRINI
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Patent number: 10534123Abstract: A white light source includes an array of light emitting elements arranged to a light guide. A light in-coupling array is arranged so that each light emitting element faces a light in-coupling element to incouple in the light guide a portion of the divergent light beams so that the in-coupled angle of at least a part of the light rays of the in-coupled light beam is higher than 45°. An array of light homogenizing elements is arranged so that each light homogenizing element faces a light incoupling element and so that the deflection angle of at least a fraction of the incident part of the in-coupled light beam incident on each of said homogenizing elements is higher than 45°. The white light source provides a uniform outcoupled white light beam.Type: GrantFiled: February 10, 2015Date of Patent: January 14, 2020Assignee: CSEM CENTRE SUISSE D'ELECTRONIQUE ET DE MICROTECHNIQUE SA—RECHERCHE ET DÉVELOPPEMENTInventors: Rolando Ferrini, Oscar Fernandez, Guillaume Basset
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Publication number: 20180299095Abstract: An optical layer made from a light-permeable material includes a surface and an optical microstructure having a plurality of elevations. The elevations of the microstructure protrude from a reference plane, which is parallel to the surface. The elevations of the microstructure each have a flank section which adjoins the reference plane and forms a uniform angle with the reference plane. The uniform angle is in a range from about 10° to about 26° or in a range from about 13° to about 23° or in a range from about 15° to about 20°. The optical layer according to the invention makes it possible for a light fixture to achieve a high light output rate (LOR) at the same time to produce a preferred light distribution curve (LDC).Type: ApplicationFiled: September 22, 2016Publication date: October 18, 2018Inventors: Kornelius REUTTER, Oscar FERNANDEZ, Rolando FERRINI, Christian HOCHFILZER, Thierry DREYFUS
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Publication number: 20180274749Abstract: An optical film made from a light-permeable material includes a surface and an optical microstructure having a plurality of elevations. The elevations of the microstructure protrude from a reference plane, which is parallel to the surface. The elevations of the microstructure each have a flank section which adjoins the reference plane and forms a uniform angle with the reference plane. The uniform angle is in a range from about 33° to about 42° or in a range from about 35° to about 40°. The optical film according to the invention makes it possible to provide a light fixture with relatively strong glare suppression and at the same time to produce a preferred light distribution curve (LDC). In addition, it can be relatively flexibly moulded and cost-effectively produced.Type: ApplicationFiled: September 22, 2016Publication date: September 27, 2018Inventors: Kornelius REUTTER, Oscar FERNANDEZ, Rolando FERRINI, Christan HOCHFILZER, Thierry DREYFUS
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Publication number: 20180031752Abstract: A white light source includes an array of light emitting elements arranged to a light guide. A light in-coupling array is arranged so that each light emitting element faces a light in-coupling element to incouple in the light guide a portion of the divergent light beams so that the in-coupled angle of at least a part of the light rays of the in-coupled light beam is higher than 45°. An array of light homogenizing elements is arranged so that each light homogenizing element faces a light incoupling element and so that the deflection angle of at least a fraction of the incident part of the in-coupled light beam incident on each of said homogenizing elements is higher than 45°. The white light source provides a uniform outcoupled white light beam.Type: ApplicationFiled: February 10, 2015Publication date: February 1, 2018Applicant: CSEM CENTRE SUISSE D'ELECTRONIQUE ET DE MICROTECHNIQUE SA - RECHERCHE ET DÉVELOPPEMENTInventors: Rolando Ferrini, Oscar Fernandez, Guillaume Basset
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Publication number: 20170363789Abstract: A translucent or transparent film or sheet device shows angular-independent IR reflectance, which comprises a substrate (1) covered with a layer of a dielectric high refractive index material (4) containing a thin metallic layer (3) embedded in said material, and a further layer (5) of translucent or transparent material covering said layer (4) of dielectric high refractive index material, characterized in that the embedded metal layer (3) is periodically interrupted with a periodicity of 50 to 800 nm such that metal covers at least 70% of the substrate area. The device may advantageously be integrated into a window, a glass facade element or especially onto a photovoltaic (PV) device, where it reduces the fraction of IR radiation passing into the building, or reduces heat take-up and thus lowers the operating temperature and improves the efficiency of the PV cell.Type: ApplicationFiled: December 18, 2015Publication date: December 21, 2017Inventors: Martin STALDER, Benjamin GALLINET, Fabian LUETOLF, Guilaume BASSET, Rolando FERRINI, Patrice BUJARD, Adrian VON MUEHLENEN, Andreas HAFNER
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Publication number: 20160204369Abstract: The invention concerns a photoelectric conversion device comprising: at least one photoconversion element comprising at least one organic photoconversion layer or an inorganic layer comprising quantum dots or perovskites; at least a first grating structure arranged on a first side of the photoconversion element; and at least a second grating structure arranged on a second side of the photoconversion element; wherein said at least a first grating structure is arranged so as to direct a near-infra-red light portion of light incident on said first grating structure into said photoconversion element, the said at least a second grating structure being arranged to reflect at least a part of said near-infra-red light portion back into said photoconversion element and to pass visible light out of the photoelectric conversion device.Type: ApplicationFiled: August 15, 2014Publication date: July 14, 2016Applicants: CSEM Centre Suisse d'Electronique et de Microtechn ique SA - Recherche et Développement, EMPA, Eidgenössische Materialprüfungs- und Forsc hungsanstaltInventors: Rolando Ferrini, Ton Offermans, Benjamin Gallinet, Roland Hany, Frank Nüesch, Thomas P. Geiger
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Publication number: 20160170102Abstract: A translucent construction element comprising a layer of translucent substrate, which contains a surface structured with nanoplanes of inclined angle relative to the substrate plane, and coated with an interrupted metallic layer covering at least a part of said nanoplanes, is characterized by a high density of interruptions in the metallic layer of low thickness; the periodicity of interruptions in the metallic layer generally is from the range 50 to 1000 nm and the thickness of the metallic layer typically is from the range 1 to 50 nm. The construction element may be integrated, for example, into windows, plastic films or sheets or glazings, especially for the purpose of light management.Type: ApplicationFiled: July 8, 2014Publication date: June 16, 2016Inventors: Andreas HAFNER, Adrian VON MUEHLENEN, Olivier ENGER, Benjamin GALLINET, Rolando FERRINI, Nenad MARJANOVIC, Martin STALDER, Fabian LUETOLF, Guillaume BASSET
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Patent number: 8986842Abstract: The present invention concerns a color conversion film comprising at least one active layer, said layer comprising an organic fluorescent dye containing a fluorescent core, wherein said dye is substituted with at least one polymer segment. It also concerns its method of preparation.Type: GrantFiled: May 24, 2011Date of Patent: March 24, 2015Assignee: Ecole Polytechnique Federale de Lausanne (EPFL)Inventors: Holger Frauenrath, Rolando Ferrini, Libero Zuppiroli, Stéphane Suarez, Roman Niklaus Marty, Justin Gerard McMullen, Michael Schär
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Patent number: 8350233Abstract: The present invention has the objective to increase the light output yield of a light conversion foil in comparison to the impacting light. There is proposed to realize the following effects in the various layers of a conversion foil, individually or in combination, namely the isolation of the conversion layer (3) from the support (1) by a, preferably microporous and mesoporous, interlayer (2), and the incorporation of scattering centers (4) either into this interlayer, or into the conversion layer, or into both.Type: GrantFiled: September 14, 2009Date of Patent: January 8, 2013Assignee: Ilford Imaging Switzerland GmbHInventors: Rolando Ferrini, Urs Fuerholz, Olivier Nicolet, Marc Pauchard, Juliette Perrenoud, Libero Zuppiroli
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Publication number: 20120301724Abstract: The present invention concerns a color conversion film comprising at least one active layer, said layer comprising an organic fluorescent dye containing a fluorescent core, wherein said dye is substituted with at least one polymer segment. It also concerns its method of preparation.Type: ApplicationFiled: May 24, 2011Publication date: November 29, 2012Applicant: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)Inventors: Holger Frauenrath, Rolando Ferrini, Libero Zuppiroli, Stéphane Suarez, Roman Niklaus Marty, Justin Gerard McMullen, Michael Schär
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Publication number: 20100102251Abstract: The present invention has the objective to increase the light output yield of a light conversion foil in comparison to the impacting light. There is proposed to realize the following effects in the various layers of a conversion foil, individually or in combination, namely the isolation of the conversion layer (3) from the support (1) by a, preferably microporous and mesoporous, interlayer (2), and the incorporation of scattering centers (4) either into this interlayer, or into the conversion layer, or into both.Type: ApplicationFiled: September 14, 2009Publication date: April 29, 2010Inventors: Rolando Ferrini, Urs Fuerholz, Olivier Nicolet, Marc Pauchard, Juliette Perrenoud, Libero Zuppiroli