Patents by Inventor Giuseppe Valsecchi

Giuseppe Valsecchi 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).

  • Publication number: 20220331836
    Abstract: A method for applying a carbon-based reflective overcoating on a grazing incidence optical unit comprising a substrate and a coating of a high-density material chosen from the group comprising gold, platinum, iridium, palladium, rhodium, ruthenium, chrome and nickel or a low-density material such as carbon or B4C; the method comprises the step of treating the optical unit with a solution or gaseous phase containing at least one polymer precursor material to create the overcoating through absorption of the polymer material on the coating.
    Type: Application
    Filed: August 13, 2020
    Publication date: October 20, 2022
    Inventors: Giovanni PARESCHI, Marta MAria CIVITANI, Giorgia SIRONI, Giuseppe VALSECCHI, Luca MAGAGNIN, Eugenio GIBERTINI
  • Publication number: 20220146809
    Abstract: A manufacturing method creates a type of telescope which is athermal, lightweight, optical quality for visible and IR applications. The method includes: a) optical mirrors being made by immersing a master, that is an optical component with a curvature opposite to the mirror required into an electrolytic bath where the applied current transfers metal ions and deposit them on the master, the cathode, as a layer, b) the layer being bonded by an adhesive, solder or any other attachment process to a mechanical reinforcing structure, c) after the hardening of the bond or glue, the thin layer being finally released from the master and having maintained the optical quality of the master. The master or mandrel can be cleaned and reused for repeating this method and manufacturing large series of telescopes.
    Type: Application
    Filed: February 17, 2020
    Publication date: May 12, 2022
    Applicant: Media Lario S.r.l.
    Inventors: Robert David BANHAM, Giuseppe VALSECCHI, Fabio MARIONI
  • Patent number: 10737964
    Abstract: A process for forming an article having at least one precision surface is disclosed. The process includes providing a thin sheet in contact with a surface of a mandrel. The process then includes establishing a pressure differential between opposite sides of the thin sheet using a collapsible enclosure so that the thin sheet is drawn onto the mandrel surface, thereby causing the thin sheet to substantially conform to the shape of the mandrel surface. The shaped thin sheet is then secured to a support member to define the article. The article is then removed from the mandrel. The front surface of the thin sheet defines the precision surface of the article. A process for forming a dual-sided precision article is also disclosed, along with an adaptive optical system and method that employs the precision article.
    Type: Grant
    Filed: October 12, 2015
    Date of Patent: August 11, 2020
    Assignee: MEDIA LARIO S.R.L.
    Inventors: Robert David Banham, Giuseppe Valsecchi, Oberto Citterio
  • Publication number: 20170233281
    Abstract: A process for forming an article having at least one precision surface is disclosed. The process includes providing a thin sheet in contact with a surface of a mandrel. The process then includes establishing a pressure differential between opposite sides of the thin sheet using a collapsible enclosure so that the thin sheet is drawn onto the mandrel surface, thereby causing the thin sheet to substantially conform to the shape of the mandrel surface. The shaped thin sheet is then secured to a support member to define the article. The article is then removed from the mandrel. The front surface of the thin sheet defines the precision surface of the article. A process for forming a dual-sided precision article is also disclosed, along with an adaptive optical system and method that employs the precision article.
    Type: Application
    Filed: October 12, 2015
    Publication date: August 17, 2017
    Applicant: MEDIA LARIO S.R.L.
    Inventors: Robert David BANHAM, Giuseppe VALSECCHI, Oberto CITTERIO
  • Patent number: 8895946
    Abstract: Source-collector modules for use with EUV lithography systems are disclosed, wherein the source-collector modules employ a laser-produced plasma EUV radiation source and a grazing-incidence collector. The EUV radiation source is generated by first forming an under-dense plasma, and then irradiating the under-dense plasma with infrared radiation of sufficient intensity to create a final EUV-emitting plasma. The grazing incidence collector can include a grating configured to prevent infrared radiation from reaching the intermediate focus. Use of debris mitigation devices preserves the longevity of operation of the source-collector modules.
    Type: Grant
    Filed: February 7, 2013
    Date of Patent: November 25, 2014
    Assignee: Media Lario S.R.L.
    Inventors: Natale M. Ceglio, Daniel Stearns, Jacques Kools, Giuseppe Valsecchi, Fabio Zocchi, Riccardo Binda
  • Patent number: 8746975
    Abstract: Systems, assemblies and methods for thermally managing a grazing incidence collector (GIC) for EUV lithography applications are disclosed. The GIC thermal management assembly includes a GIC mirror shell interfaced with a jacket to form a sealed chamber. An open cell, heat transfer (OCHT) material is disposed within the metal chamber and is thermally and mechanically bonded with the GIC mirror shell and jacket. A coolant is flowed in an azimuthally symmetric fashion through the OCHT material between input and output plenums to effectuate cooling when the GIC thermal management assembly is used in a GIC mirror system configured to receive and form collected EUV radiation from an EUV radiation source.
    Type: Grant
    Filed: January 23, 2012
    Date of Patent: June 10, 2014
    Assignee: Media Lario S.R.L.
    Inventors: Giovanni Bianucci, Fabio Zocchi, Robert Banham, Marco Pedrali, Boris Grek, Natale Ceglio, Dean Shough, Gordon Yue, Daniel Stearns, Richard A. Levesque, Giuseppe Valsecchi
  • Publication number: 20120212719
    Abstract: Systems, assemblies and methods for thermally managing a grazing incidence collector (GIC) for EUV lithography applications are disclosed. The GIC thermal management assembly includes a GIC mirror shell interfaced with a jacket to form a sealed chamber. An open cell, heat transfer (OCHT) material is disposed within the metal chamber and is thermally and mechanically bonded with the GIC mirror shell and jacket. A coolant is flowed in an azimuthally symmetric fashion through the OCHT material between input and output plenums to effectuate cooling when the GIC thermal management assembly is used in a GIC mirror system configured to receive and form collected EUV radiation from an EUV radiation source.
    Type: Application
    Filed: January 23, 2012
    Publication date: August 23, 2012
    Inventors: Giovanni Bianucci, Fabio Zocchi, Robert Banham, Marco Pedrali, Boris Grek, Natale Ceglio, Dean Shough, Daniel Stearns, Richard A. Levesque, Gordon Yue, Giuseppe Valsecchi
  • Patent number: 7347572
    Abstract: Optical mirror elements for high bandwidth free space optical communication are produced by an electroforming replication technique. Onto the precision surface of a mandrel that is a negative of the required optical surface a layer of metal is deposited forming an exact copy of the mandrel surface and is then separated to form the required optical element. During the production process the mandrel may be coated with a variety of materials that are then separated together with the electroformed optical element during the release step to form a monolithic structure that includes a reflective coating. The mandrel remains unchanged by the process and can then be re-used. The high cost of conventional polishing techniques is therefore limited to the production of the mandrel. The replication process results in the production of low cost optical elements suitable for high bandwidth free space optical data transmission.
    Type: Grant
    Filed: May 23, 2000
    Date of Patent: March 25, 2008
    Assignee: Media Lario S.R.L.
    Inventors: Arnoldo Valenzuela, Giuseppe Valsecchi, Robert David Banham, Fabio Marioni
  • Patent number: 4076966
    Abstract: A telephone exchange linked via PCM channels with subscribers engaged in a conference call includes switching circuits for transmitting to each participating subscriber, during an assigned time slot, the albegraic sum of the digitized voice-current samples from all the other participants. The digitized samples are logarithmically coded, each code consisting of a polarity bit, three range bits and four quantum bits; in order to facilitate correct addition or subtraction of the quantum bits of two codes to be summed (unless these codes signify the two lowest-ranking ranges), according to whether their sign bits are identical or different, the quantum bits of a lower-ranking code are shifted in a register toward less significant bit positions in which they would have their original numerical weight when prefaced by the range bits of the higher-ranking code.
    Type: Grant
    Filed: August 2, 1976
    Date of Patent: February 28, 1978
    Assignee: Societa Italiana Telecomunicazioni Siemens S.p.A.
    Inventors: Amilcare Bovo, Giuseppe Valsecchi