Patents by Inventor Leonardo SACCONI

Leonardo SACCONI 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).

  • System and method for measuring the focus state of an optical instrument
    Patent number: 11237375
    Abstract: A system and a method for measuring the focus state of an optical instrument are described. The system and the method provide for forming an image of the exit pupil of the objective of the optical instrument. Where the image of the exit pupil is formed, one or more optical elements are placed, deviating at least part of the rays coming from the exit pupil, so that rays coming from different non-overlapping portions of the pupil follow separate optical paths. The rays coming from the two portions of the pupil are then focused, in order to obtain two bidimensional images. A computer determines the mutual distance between these two bidimensional images as a mutual rigid lateral displacement between the two and, based on this distance, determines the corresponding defocus of the optical instrument.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: February 1, 2022
    Assignees: LABORATORIO EUROPEO DI SPETTROSCOPIE NON LINEARI (LENS), CONSIGLIO NAZIONALE DELLE RICERCHE-CNR
    Inventors: Ludovico Silvestri, Marie Caroline Mullenbroich, Leonardo Sacconi, Francesco Saverio Pavone
  • SYSTEM AND METHOD FOR MEASURING THE FOCUS STATE OF AN OPTICAL INSTRUMENT
    Publication number: 20190339504
    Abstract: A system and a method for measuring the focus state of an optical instrument are described. The system and the method provide for forming an image of the exit pupil of the objective of the optical instrument. Where the image of the exit pupil is formed, one or more optical elements are placed, deviating at least part of the rays coming from the exit pupil, so that rays coming from different non-overlapping portions of the pupil follow separate optical paths. The rays coming from the two portions of the pupil are then focused, in order to obtain two bidimensional images. A computer determines the mutual distance between these two bidimensional images as a mutual rigid lateral displacement between the two and, based on this distance, determines the corresponding defocus of the optical instrument.
    Type: Application
    Filed: December 21, 2017
    Publication date: November 7, 2019
    Applicants: LABORATORIO EUROPEO Dl SPETTROSCOPIE NON LINEARI (LENS), CONSIGLIO NAZIONALE DELLE RICERCHE - CNR, UNIVERSITA' DEGLI STUDI Dl FIRENZE
    Inventors: Ludovico SILVESTRI, Marie Caroline MULLENBROICH, Leonardo SACCONI, Francesco Saverio PAVONE