Patents by Inventor Carlo Liberale
Carlo Liberale 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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Patent number: 11886011Abstract: An optical microstructure is configured to work with an optical fiber or a different substrate and the optical microstructure includes a beam converter including a tapered optical guide configured to transform a gaussian optical beam into a first annular optical beam; an inverted cone having first and second reflection surfaces, each configured to reflect the first annular optical beam, having a radius R1, so that a resulting second annular optical beam has a radius R2 larger than the radius R1; and a prism having a reflection surface configured to reflect the second annular optical beam to form a third converging annular optical beam. The third converging annular optical beam includes plural single optical beams that intersect at a given crossing point, outside the optical microstructure. The plural single optical beams form an optical trap.Type: GrantFiled: May 13, 2021Date of Patent: January 30, 2024Assignee: KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGYInventors: Carlo Liberale, Andrea Bertoncini, Innem Venkata Anudeep Kumar Reddy
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Patent number: 11796734Abstract: An optical waveguide is configured to guide an optical beam, and the optical waveguide includes a down-taper element configured to reduce a diameter of an incoming light beam having a random polarization; a dual-core directional coupler element configured to separate the incoming light beam into a horizontally-polarized beam and a vertically-polarized beam, each beam being confined in first and second cores, respectively; and a core fan-out element configured to increase a distance between the horizontally-polarized beam and the vertically-polarized beam upon exit from the core fan-out element. Each of the down-taper element, the dual-core directional coupler element, and the core fan-out element are 3-dimensional, 3D, printed using a single material.Type: GrantFiled: January 12, 2022Date of Patent: October 24, 2023Assignee: KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGYInventors: Carlo Liberale, Andrea Bertoncini
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Publication number: 20220221645Abstract: An optical waveguide is configured to guide an optical beam, and the optical waveguide includes a down-taper element configured to reduce a diameter of an incoming light beam having a random polarization; a dual-core directional coupler element configured to separate the incoming light beam into a horizontally-polarized beam and a vertically-polarized beam, each beam being confined in first and second cores, respectively; and a core fan-out element configured to increase a distance between the horizontally-polarized beam and the vertically-polarized beam upon exit from the core fan-out element. Each of the down-taper element, the dual-core directional coupler element, and the core fan-out element are 3-dimensional, 3D, printed using a single material.Type: ApplicationFiled: January 12, 2022Publication date: July 14, 2022Inventors: Carlo LIBERALE, Andrea BERTONCINI
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Publication number: 20220157483Abstract: A holographic optical tweezers for manipulating a micro- or nano-size particle, the optical tweezers including a light source configured to emit first and second light beams; a light focusing apparatus configured to focus the first and second light beams to generate focused light beams, which create optical forces; and a trapping assembly configured to receive the first and second focused light beams and form a trap for holding the particle with the optical forces. The trapping assembly includes first and second micromirrors attached to a microscope coverslip.Type: ApplicationFiled: March 5, 2020Publication date: May 19, 2022Inventors: Carlo LIBERALE, Andrea BERTONCINI, Gheorghe COJOC
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Patent number: 11269168Abstract: A catadioptric high-aperture optical element includes a substrate made of a transparent material; and a lens formed on the substrate. The lens includes, plural refractive features formed on a central portion of the lens, and plural reflective features formed on a ring portion of the lens. The plural refractive features are shaped to refract light incoming from the substrate and the plural reflective features are shaped to achieve total internal reflections with the light incoming from the substrate.Type: GrantFiled: December 20, 2018Date of Patent: March 8, 2022Assignee: KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGYInventors: Andrea Bertoncini, Carlo Liberale
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Publication number: 20210364700Abstract: An optical microstructure is configured to work with an optical fiber or a different substrate and the optical microstructure includes a beam converter including a tapered optical guide configured to transform a gaussian optical beam into a first annular optical beam; an inverted cone having first and second reflection surfaces, each configured to reflect the first annular optical beam, having a radius R1, so that a resulting second annular optical beam has a radius R2 larger than the radius R1; and a prism having a reflection surface configured to reflect the second annular optical beam to form a third converging annular optical beam. The third converging annular optical beam includes plural single optical beams that intersect at a given crossing point, outside the optical microstructure. The plural single optical beams form an optical trap.Type: ApplicationFiled: May 13, 2021Publication date: November 25, 2021Inventors: Carlo LIBERALE, Andrea BERTONCINI, Innem Venkata ANUDEEP KUMAR REDDY
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Publication number: 20200033571Abstract: A catadioptric high-aperture optical element includes a substrate made of a transparent material; and a lens formed on the substrate. The lens includes, plural refractive features formed on a central portion of the lens, and plural reflective features formed on a ring portion of the lens. The plural refractive features are shaped to refract light incoming from the substrate and the plural reflective features are shaped to achieve total internal reflections with the light incoming from the substrate.Type: ApplicationFiled: December 20, 2018Publication date: January 30, 2020Inventors: Andrea BERTONCINI, Carlo LIBERALE
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Publication number: 20150015410Abstract: Electronic control system for a submarine actuator, said actuator comprising a container body, from which a drive shaft projects that is suitable for inserting in a seat of said submarine device. The system comprises an electronic control board for at least one electric motor arranged inside said container body suitable for moving said drive shaft.Type: ApplicationFiled: July 23, 2014Publication date: January 15, 2015Inventors: Carlo Liberale, Fabio Imperiali
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Patent number: 8810427Abstract: Electronic control system for a submarine actuator, said actuator comprising a container body, from which a drive shaft projects that is suitable for inserting in a seat of said submarine device. The system comprises an electronic control board for at least one electric motor arranged inside said container body suitable for moving said drive shaft.Type: GrantFiled: December 19, 2009Date of Patent: August 19, 2014Assignee: Cameron International CorporationInventors: Carlo Liberale, Fabio Imperiali
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Patent number: 8196598Abstract: Submarine actuator for the actuation of a submarine device comprises a container body (2), from which a drive shaft (4) projects that is suitable for inserting in a seat of said submarine device, which through its rotation actuates said submarine device. Said shaft is moved by an electric motor (21, 22) arranged inside said container body and actuated by an electric control signal generated by a remote station.Type: GrantFiled: January 6, 2005Date of Patent: June 12, 2012Assignee: Cameron International CorporationInventors: Carlo Liberale, Fabio Imperiali
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Publication number: 20120045578Abstract: A method for manufacturing a photonic crystal device provided with a plasmonic waveguide includes: preparing a membrane; applying, in a programmed manner, a focused ion beam on the membrane, in a manner such as to obtain a photonic crystal made up by a regular planar arrangement of through holes positioned according to a preset lattice and also comprising a resonant cavity. The method also provides a conic plasmonic waveguide at the resonant cavity, through chemical vapour deposition induced by a focused electron beam. The focused electron beam that induces la deposition is controlled in such a manner to gradually reduce the transverse section of the electron beam starting from the base up to the tip of the projecting structure, maintaining the position of the electron beam constant.Type: ApplicationFiled: September 22, 2009Publication date: February 23, 2012Applicant: CALMED S.r.l.Inventors: Enzo Mario Di Fabrizio, Francesco De Angelis, Gobind Das, Federico Mecarini, Patrizio Candeloro, Carlo Liberale
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Publication number: 20100187409Abstract: Is disclosed a device for manipulating a particle immersed in a fluid, comprising a probe having a first end, a second end and a longitudinal axis. The probe receives a radiation from a light source and emits the radiation by means of the second end. The probe comprises: an optical guide structure suitable for receiving the radiation. The optical guide structure is configured so that: at the second end, the radiation has an optical intensity distribution with an intensity maximum placed at a non-zero distance from the longitudinal axis of the probe; and in the region of the intensity maximum, the radiation is reflected at the interface between the second end and the fluid and is emitted by the second end so that it converges in a convergence point, thus creating an equilibrium point. The probe further comprises perturbation optical means for perturbing the equilibrium point.Type: ApplicationFiled: January 28, 2008Publication date: July 29, 2010Inventors: llaria Cristiani, Carlo Liberale, Paolo Minzioni
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Publication number: 20100090639Abstract: Electronic control system for a submarine actuator, said actuator comprising a container body, from which a drive shaft projects that is suitable for inserting in a seat of said submarine device. The system comprises an electronic control board for at least one electric motor arranged inside said container body suitable for moving said drive shaft.Type: ApplicationFiled: December 19, 2009Publication date: April 15, 2010Applicant: CAMERON INTERNATIONAL CORPORATIONInventors: Carlo Liberale, Fabio Imperiali
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Patent number: 7642926Abstract: Electronic control system for a submarine actuator, said actuator comprising a container body, from which a drive shaft projects that is suitable for inserting in a seat of said submarine device. The system comprises an electronic control board for at least one electric motor arranged inside said container body suitable for moving said drive shaft.Type: GrantFiled: January 6, 2005Date of Patent: January 5, 2010Assignee: Cameron International CorporationInventors: Carlo Liberale, Fabio Imperiali
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Publication number: 20090289180Abstract: It is disclosed an optical device for trapping a particle immersed in a fluid. The device of the invention comprises a light source and a probe for guiding and outputting the radiation received from the source. According to the invention, the guided radiation has an intensity distribution having intensity maximum placed at a non-zero distance from the probe longitudinal axis and having rotational symmetry about the longitudinal axis. Further, according to the invention, the intensity maximum is reflected at the interface between probe and fluid, and then it is output by the probe so that it creates a stable equilibrium point wherein the particle is trapped.Type: ApplicationFiled: July 5, 2007Publication date: November 26, 2009Inventors: Ilaria Cristiani, Carlo Liberale, Paolo Minzioni
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Publication number: 20080251745Abstract: Submarine actuator for the actuation of a submarine device comprises a container body (2), from which a drive shaft (4) projects that is suitable for inserting in a seat of said submarine device, which through its rotation actuates said submarine device. Said shaft is moved by an electric motor (21, 22) arranged inside said container body and actuated by an electric control signal generated by a remote station.Type: ApplicationFiled: January 6, 2005Publication date: October 16, 2008Inventors: Carlo Liberale, Fabio Imperiali
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Publication number: 20080230227Abstract: Electronic control system for a submarine actuator, said actuator comprising a container body, from which a drive shaft projects that is suitable for inserting in a seat of said submarine device. The system comprises an electronic control board for at least one electric motor arranged inside said container body suitable for moving said drive shaft.Type: ApplicationFiled: January 6, 2005Publication date: September 25, 2008Inventors: Carlo Liberale, Fabio Imperiali