Patents by Inventor Vijay Raj Singh

Vijay Raj Singh 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).

  • High sensitivity temporal focusing widefield multiphoton endoscope capable of deep imaging
    Patent number: 9867525
    Abstract: An imaging system is provided that includes a pulsed light source providing pulsed light and is applicable to both microscopes and endoscopes. One or more optical elements with certain dispersive properties are positioned to receive the pulsed light and apply selective dispersive properties to shift the focal plane according to the user and to produce two photon (2p) wide field uniform illumination and 2p wide field structured illumination for the purpose of improving the optical axial resolution and rejection of background signal. An imaging element receives the signal arising from the 2p wide field uniform illumination and 2p wide field structured illumination and produces a respective 3D resolved image of a sample.
    Type: Grant
    Filed: April 2, 2012
    Date of Patent: January 16, 2018
    Assignees: NANYANG TECHNOLOGICAL UNIVERSITY, NATIONAL UNIVERSITY OF SINGAPORE, MASSACHUSETTS INSTITUTE OF TECHNOLOGY
    Inventors: Yan Seng Elijah Yew, Heejin Choi, Vijay Raj Singh, Daekeun Kim, Jagath Rajapakse, Hanry Yu, Colin J. R. Sheppard, Peter T. C. So
  • HIGH SENSITIVITY TEMPORAL FOCUSING WIDEFIELD MULTIPHOTON ENDOSCOPE CAPABLE OF DEEP IMAGING
    Publication number: 20140128743
    Abstract: An imaging system is provided that includes a pulsed light source providing pulsed light and is applicable to both microscopes and endoscopes. One or more optical elements with certain dispersive properties are positioned to receive the pulsed light and apply selective dispersive properties to shift the focal plane according to the user and to produce two photon (2p) wide field uniform illumination and 2p wide field structured illumination for the purpose of improving the optical axial resolution and rejection of background signal. An imaging element receives the signal arising from the 2p wide field uniform illumination and 2p wide field structured illumination and produces a respective 3D resolved image of a sample.
    Type: Application
    Filed: April 2, 2012
    Publication date: May 8, 2014
    Applicants: MASSACHUSETTS INSTITUTE OF TECHNOLOGY, NANYANG TECHNOLOGICAL UNIVERSITY, NATIONAL UNIVERSITY OF SINGAPORE
    Inventors: Yan Seng Elijah Yew, Heejin Choi, Vijay Raj Singh, Daekeun Kim, Jagath Rajapakse, Hanry Yu, Colin J.R. Sheppard, Peter T.C. So
  • In-line digital holographic microscope and a method of in-line digital holographic microscopy
    Patent number: 8194124
    Abstract: A holographic microscope comprising a source configured to provide a diverging beam of radiation, a beam splitter configured to direct a first portion of the diverging beam towards an object and a second portion of the diverging beam towards a reflector, the beam splitter being further configured to direct an object beam from the object and a reference beam from the reflector towards a transducer, and the transducer being configured to provide a signal indicative of the interference pattern of the object beam and the reference beam incident on the transducer. A method of digital holography is also disclosed.
    Type: Grant
    Filed: October 9, 2007
    Date of Patent: June 5, 2012
    Assignee: Nanyang Technological University
    Inventors: Anand Krishna Asundi, Vijay Raj Singh
  • Holographic microscope and a method of holographic microscopy
    Publication number: 20090091811
    Abstract: A holographic microscope comprising a source configured to provide a diverging beam of radiation, a beam splitter configured to direct a first portion of the diverging beam towards an object and a second portion of the diverging beam towards a reflector, the beam splitter being further configured to direct an object beam from the object and a reference beam from the reflector towards a transducer, and the transducer being configured to provide a signal indicative of the interference pattern of the object beam and the reference beam incident on the transducer. A method of digital holography is also disclosed.
    Type: Application
    Filed: October 9, 2007
    Publication date: April 9, 2009
    Inventors: Anand Krishna Asundi, Vijay Raj Singh