Patents by Inventor Alexander SZAMEIT

Alexander SZAMEIT 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).

  • Arrangement for producing a Bessel beam
    Patent number: 11372254
    Abstract: The invention relates to an arrangement for producing a Bessel beam (5), comprising a beam-forming element (2), which transforms a beam (1) incident as a plane electromagnetic wave into a Bessel beam (5). According to the invention, the beam-forming element (2) comprises at least one annular lens (3, 3?) and a Fourier optical unit, e.g. in the form of a Fourier lens (4).
    Type: Grant
    Filed: June 22, 2017
    Date of Patent: June 28, 2022
    Assignee: Fraunhofer-Gesellschaft zur Forderung der Angewandten Forchung E.V.
    Inventors: Ralf Steinkopf, Stefan Nolte, Christian Vetter, Alexander Szameit, Herbert Gross, Marco Ornigotti
  • OPTICAL WAVEGUIDE LIGHT EMITTER AND TOUCHSCREEN
    Publication number: 20210157443
    Abstract: An optical device for controlling light and an optical touch sensing device are formed by direct laser writing in a transparent substrate to manufacture one or more optical waveguides therein.
    Type: Application
    Filed: July 25, 2019
    Publication date: May 27, 2021
    Inventors: Jonas ZEUNER, Philip WALTHER, Alexander SZAMEIT, Matthias HEINRICH, Lukas MACZEWSKY
  • Arrangement for Producing a Bessel Beam
    Publication number: 20200333611
    Abstract: The invention relates to an arrangement for producing a Bessel beam (5), comprising a beam-forming element (2), which transforms a beam (1) incident as a plane electromagnetic wave into a Bessel beam (5). According to the invention, the beam-forming element (2) comprises at least one annular lens (3, 3?) and a Fourier optical unit, e.g. in the form of a Fourier lens (4).
    Type: Application
    Filed: June 22, 2017
    Publication date: October 22, 2020
    Applicants: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., Friedrich-Schiller-Universität Jena
    Inventors: Ralf Steinkopf, Stefan Nolte, Christian Vetter, Alexander Szameit, Herbert Gross, Marco Ornigotti
  • Method and system for super-resolution signal reconstruction
    Patent number: 9159119
    Abstract: A method and system are presented for reconstructing an input field where the latter is sensed by a measurement system. The method comprises: providing measured data corresponding to output field of said measurement system; providing data about sparsity of the input field, and data about effective response function of the measurement system; and processing the measured data based on said known data, the processing comprising: determining a sparse vector as a function of said measured data, said data about the sparsity of the input field, and said data about the effective response function; and using the sparse vector for reconstructing the input information. The invention allows for sub-wavelength resolution in imaging applications, and allows for detection of very short pulses by slow detectors in some other applications.
    Type: Grant
    Filed: January 5, 2012
    Date of Patent: October 13, 2015
    Assignee: TECHNION RESEARCH AND DEVELOPMENT FOUNDATION LTD.
    Inventors: Yoav Shechtman, Alexander Szameit, Mordechai Segev, Oren Cohen, Yonina Eldar, Snir Gazit, Pavel Sidorenko
  • METHOD AND SYSTEM FOR SUPER-RESOLUTION SIGNAL RECONSTRUCTION
    Publication number: 20120188368
    Abstract: A method and system are presented for reconstructing an input field where the latter is sensed by a measurement system. The method comprises: providing measured data corresponding to output field of said measurement system; providing data about sparsity of the input field, and data about effective response function of the measurement system; and processing the measured data based on said known data, the processing comprising: determining a sparse vector as a function of said measured data, said data about the sparsity of the input field, and said data about the effective response function; and using the sparse vector for reconstructing the input information. The invention allows for sub-wavelength resolution in imaging applications, and allows for detection of very short pulses by slow detectors in some other applications.
    Type: Application
    Filed: January 5, 2012
    Publication date: July 26, 2012
    Applicant: TECHNION RESEARCH AND DEVELOPMENT FOUNDATION LTD.
    Inventors: Yoav SHECHTMAN, Alexander SZAMEIT, Mordechai SEGEV, Oren COHEN, Yonina ELDAR, Snir GAZIT, Pavel SIDORENKO