Patents by Inventor Raul Andres Guevara-Torres

Raul Andres Guevara-Torres 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).

  • Patent number: 10694944
    Abstract: An ophthalmic imaging system for imaging an axial and lateral point-spread of light distribution pattern of light reflected from a surface of an animal or human eye includes an ophthalmic imaging apparatus adapted to generate an illumination light of a surface of the eye. A detection arm includes a digital micromirror device (DMD) having an array of mirror facets. A first detector is disposed to receive a first portion of the axial and lateral point-spread of light distribution of light, and one or a plurality of additional detectors are disposed to receive a light from one or a plurality of different portions of the axial and lateral point-spread of light distribution pattern of light. A detection arm, a method for imaging axial and lateral point-spread of light distribution components, and a method for auto-centering a distribution pattern in an imaging plane of a DMD device are also described.
    Type: Grant
    Filed: March 23, 2016
    Date of Patent: June 30, 2020
    Assignee: University of Rochester
    Inventors: Jesse Schallek, Raul Andres Guevara-Torres
  • Publication number: 20200121182
    Abstract: A method to image an in vivo object in an eye includes illuminating an object in the eye by a light source; configuring one or more detectors to receive light from a conjugate plane behind a confocal plane of the object, the conjugate plane acting as a light screen; receiving at the one or more detectors a backscattered light from the light source which has been refracted at least in part by the object before being backscattered from the light screen to provide a detector data; and processing the detector data over a time period by a computer to generate information about the object.
    Type: Application
    Filed: October 22, 2019
    Publication date: April 23, 2020
    Inventors: Raul Andres Guevara-Torres, Jesse Schallek, Aby Joseph
  • Publication number: 20190167094
    Abstract: A method for imaging vertebrate translucent retinal structures includes imaging a translucent retinal structure at a first imaging plane in the retina with a light source focused at such first imaging plane, and detecting reflected light with a non-confocal off-axis detector, wherein the detector is axially displaced from a plane conjugate to the first imaging plane to a plane conjugate to a reflective layer deeper in the retina along a path of illumination from the light source. The method may employ scanning ophthalmic instruments, and enables an enhancement in contrast and collected intensity by axially displacing the image detector away from the object of interest to positions closer to conjugate to layers of strong retinal reflection, like the photoreceptors or the interface between the choroid and the sclera, that act as a diffusive screen.
    Type: Application
    Filed: November 30, 2018
    Publication date: June 6, 2019
    Applicant: University of Rochester
    Inventors: Raul Andres Guevara-Torres, Jesse Schallek
  • Publication number: 20180338679
    Abstract: An ophthalmic imaging system for imaging an axial and lateral point-spread of light distribution pattern of light reflected from a surface of an animal or human eye includes an ophthalmic imaging apparatus adapted to generate an illumination light of a surface of the eye. A detection arm includes a digital micromirror device (DMD) having an array of mirror facets. A first detector is disposed to receive a first portion of the axial and lateral point-spread of light distribution of light, and one or a plurality of additional detectors are disposed to receive a light from one or a plurality of different portions of the axial and lateral point-spread of light distribution pattern of light. A detection arm, a method for imaging axial and lateral point-spread of light distribution components, and a method for auto-centering a distribution pattern in an imaging plane of a DMD device are also described.
    Type: Application
    Filed: March 23, 2016
    Publication date: November 29, 2018
    Inventors: Jesse Schallek, Raul Andres Guevara-Torres