Patents by Inventor Rohith Chandrasekar

Rohith Chandrasekar 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).

  • Lightweight night vision systems using broadband diffractive optics
    Patent number: 11754760
    Abstract: Systems and methods for improving night vision systems are presented. Broadband multi-level diffractive lenses are used in place of either or both of the objective and eyepiece of traditional night vision systems. By using one or more broadband multi-level diffractive lenses, the size, weight, and weight distribution may be reduced or modified.
    Type: Grant
    Filed: February 3, 2021
    Date of Patent: September 12, 2023
    Assignee: The United States of America As Represented By The Director Of The National Geospatial-Intelligence Agency
    Inventor: Rohith Chandrasekar
  • Lightweight Night Vision Systems Using Broadband Diffractive Optics
    Publication number: 20220244438
    Abstract: Systems and methods for improving night vision systems are presented. Broadband multi-level diffractive lenses are used in place of either or both of the objective and eyepiece of traditional night vision systems. By using one or more broadband multi-level diffractive lenses, the size, weight, and weight distribution may be reduced or modified.
    Type: Application
    Filed: February 3, 2021
    Publication date: August 4, 2022
    Applicant: The United States of America As Represented By The Director Of The National Geospatial-Intelligence
    Inventor: Rohith Chandrasekar
  • SENSOR FOR HYPERSPECTRAL IMAGING BASED ON A METASURFACE-INTEGRATED LIGHT DETECTOR ARRAY
    Publication number: 20200025610
    Abstract: A spectroscopic microscope device, comprising at least one array of metasurfaces, and at least one CCD array integrated with the array of metasurfaces. The metasurfaces in the array are configured to separately direct LCP an RCP components of light incident on the metasurface to separate pixels in the CCD array.
    Type: Application
    Filed: March 22, 2019
    Publication date: January 23, 2020
    Applicant: Purdue Research Foundation
    Inventors: Rohith Chandrasekar, Amr Shaltout, Vladimir Shalaev, Alexander Chubykin, Alexei Lagoutchev