Patents by Inventor Leonard Zheleznyak

Leonard Zheleznyak 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).

  • Publication number: 20210177578
    Abstract: Methods and systems wherein laser induced refractive index changes by focused femtosecond laser pulses in optical polymeric materials or optical tissues is performed to address various types of vision correction.
    Type: Application
    Filed: March 1, 2021
    Publication date: June 17, 2021
    Inventors: Leonard Zheleznyak, Scott Catlin
  • Publication number: 20210177579
    Abstract: Methods and systems wherein laser induced refractive index changes by focused femtosecond laser pulses in optical polymeric materials or optical tissues is performed to address various types of vision correction.
    Type: Application
    Filed: March 1, 2021
    Publication date: June 17, 2021
    Inventors: Leonard Zheleznyak, Scott Catlin
  • Publication number: 20210063769
    Abstract: Described refractive correctors, include, but are not limited to, intraocular lenses (IOLs), contact lenses, corneal inlays, and other optical components or devices, incorporating a continuous central phase zone and peripheral phase discontinuities. Further embodiments are directed to a method for using a laser to modify the refractive properties of refractive correctors to form such continuous central phase zone and peripheral phase discontinuities, and other applications. The refractive corrector and methods adapt a Fresnel lens structure to include continuous phase retarding regions having a wavefront height of greater than one design wavelength in a central zone of a refractive corrector to improve human vision applications, while maintaining benefits of phase wrapping in the peripheral region.
    Type: Application
    Filed: November 13, 2020
    Publication date: March 4, 2021
    Inventors: Wayne H. Knox, Gustavo A. Gandara-Montano, Leonard Zheleznyak
  • Patent number: 10932901
    Abstract: Methods and systems wherein laser induced refractive index changes by focused femtosecond laser pulses in optical polymeric materials or optical tissues is performed to address various types of vision correction.
    Type: Grant
    Filed: February 9, 2018
    Date of Patent: March 2, 2021
    Assignee: University of Rochester
    Inventors: Leonard Zheleznyak, Scott Catlin
  • Publication number: 20210018762
    Abstract: A ophthalmic lens for inhibiting progression of myopia includes a central zone and an annular zone. The annular zone includes subsurface optical elements formed via laser-induced changes in refractive index of a material forming the annular zone. The subsurface optical elements are configured to modify distribution of light to the peripheral retina of a user so as to inhibit progression of myopia.
    Type: Application
    Filed: July 14, 2020
    Publication date: January 21, 2021
    Applicant: Clerio Vision, Inc.
    Inventor: Leonard Zheleznyak
  • Patent number: 10838233
    Abstract: Described refractive correctors, include, but are not limited to, intraocular lenses (IOLs), contact lenses, corneal inlays, and other optical components or devices, incorporating a continuous central phase zone and peripheral phase discontinuities. Further embodiments are directed to a method for using a laser to modify the refractive properties of refractive correctors to form such continuous central phase zone and peripheral phase discontinuities, and other applications. The refractive corrector and methods adapt a Fresnel lens structure to include continuous phase retarding regions having a wavefront height of greater than one design wavelength in a central zone of a refractive corrector to improve human vision applications, while maintaining benefits of phase wrapping in the peripheral region.
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: November 17, 2020
    Assignee: University of Rochester
    Inventors: Wayne H. Knox, Gustavo A. Gandara-Montano, Leonard Zheleznyak
  • Publication number: 20190343683
    Abstract: Methods and systems wherein laser induced refractive index changes by focused femtosecond laser pulses in optical polymeric materials or ocular tissues is performed to address various types of vision correction.
    Type: Application
    Filed: May 14, 2019
    Publication date: November 14, 2019
    Inventors: Leonard Zheleznyak, Corey Leeson, Jonathan D. Ellis, Theodore Foos, Sam C. Butler
  • Publication number: 20180373060
    Abstract: Described refractive correctors, include, but are not limited to, intraocular lenses (IOLs), contact lenses, corneal inlays, and other optical components or devices, incorporating a continuous central phase zone and peripheral phase discontinuities. Further embodiments are directed to a method for using a laser to modify the refractive properties of refractive correctors to form such continuous central phase zone and peripheral phase discontinuities, and other applications. The refractive corrector and methods adapt a Fresnel lens structure to include continuous phase retarding regions having a wavefront height of greater than one design wavelength in a central zone of a refractive corrector to improve human vision applications, while maintaining benefits of phase wrapping in the peripheral region.
    Type: Application
    Filed: December 14, 2016
    Publication date: December 27, 2018
    Applicant: University of Rochester
    Inventors: Wayne H. Knox, Gustavo A. Gandara-Montano, Leonard Zheleznyak
  • Publication number: 20180243082
    Abstract: Methods and systems wherein laser induced refractive index changes by focused femtosecond laser pulses in optical polymeric materials or optical tissues is performed to address various types of vision correction.
    Type: Application
    Filed: February 9, 2018
    Publication date: August 30, 2018
    Inventors: Leonard Zheleznyak, Scott Catlin
  • Publication number: 20180173009
    Abstract: An optical device for off-axis viewing includes a contact lens adapted for human eye wear. The contact lens includes a diffraction grating written into or on the contact lens. A peripheral light from a peripheral light source is diffracted by the diffraction grating so as to appear at about a same location as light from an ambient scene substantially in a direction of a central field of view. A wearer of the optical device for off-axis viewing sees simultaneously the peripheral light and the light from an ambient scene as superimposed at least in part over each other. A device-less method for correcting light direction from an ambient light source to a retina of a diseased or injured eye, and a remedial contact lens method for correcting light direction from an ambient light source to a retina of a diseased or injured eye are also described.
    Type: Application
    Filed: May 26, 2016
    Publication date: June 21, 2018
    Applicant: University of Rochester
    Inventors: Wayne H. Knox, Leonard A. Zheleznyak
  • Publication number: 20180021172
    Abstract: Methods and systems wherein laser induced refractive index changes by focused femtosecond laser pulses in optical tissues is performed in combination with corneal lenticular surgery to achieve overall desired vision corrections.
    Type: Application
    Filed: July 19, 2017
    Publication date: January 25, 2018
    Inventors: Leonard Zheleznyak, Scott Catlin
  • Patent number: 8213006
    Abstract: The present subject matter relates to methods of high-speed analysis of product samples. Light is directed to a portion of a product under analysis and reflected from or transmitted through the product toward a plurality of optical detectors. Signals from the detectors are compared with a reference signal based on a portion of the illuminating light passing through a reference element to determine characteristics of the product under analysis. The products under analysis may be stationary, moved by an inspection point by conveyor or other means, or may be contained within a container, the container including a window portion through which the product illuminating light may pass.
    Type: Grant
    Filed: March 27, 2008
    Date of Patent: July 3, 2012
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Michael L. Myrick, Robert P. Freese, David L. Perkins, Terrell Teague, William Soltmann, Leonard Zheleznyak
  • Patent number: 8213012
    Abstract: The present subject matter relates to methods of high-speed analysis of product samples. Light is directed to a portion of a product under analysis and reflected from or transmitted through the product toward an optical detector. Signals for the detector are compared with reference signals based on a portion of the illuminating light passing through a reference element to determine characteristics of the product under analysis. Temperature within the analysis system is monitored and the output signals of the optical detectors are compensated or corrections are made within the analysis calculations to compensate or correct for the system temperature. The products under analysis may be stationary, moved by an inspection point by conveyor or other means, or may be contained within a container, the container including a window portion through which the product illuminating light may pass.
    Type: Grant
    Filed: March 27, 2008
    Date of Patent: July 3, 2012
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Michael L. Myrick, Robert P. Freese, William Soltmann, David L. Perkins, Leonard Zheleznyak
  • Patent number: 8184295
    Abstract: The present subject matter relates to multivariate optical analysis systems employ multivariate optical elements and utilize multivariate optical computing methods to determine information about a product carried by light reflected from or transmitted through the product. An exemplary method of processing and monitoring the product includes introducing the product at an inspection point; illuminating the product with a spectral-specific light though an optic lens; directing the light that has passed through at least a section of the product through at least one multivariate optical element to produce a first signal, the directed light carrying information about the product; detecting the signal at a detector; and determining at least one property of the product based upon the detector output.
    Type: Grant
    Filed: March 27, 2008
    Date of Patent: May 22, 2012
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Michael L. Myrick, Robert P. Freese, John Blackburn, David L. Perkins, Leonard Zheleznyak, Ryan Priore
  • Publication number: 20120123534
    Abstract: Depth-of-focus (DoF) is extended in a presbyopic patient by inducing different higher order aberrations, e.g. spherical aberration, to each of the two eyes. That method will result in improving binocular through-focus visual performance and outperform traditional monovision. The aberration can be induced in any suitable way, such as by an intraocular lens or a contact lens.
    Type: Application
    Filed: November 11, 2011
    Publication date: May 17, 2012
    Applicant: University of Rochester
    Inventors: Geunyoung YOON, Leonard Zheleznyak, Ramkumar Sabesan
  • Publication number: 20100328669
    Abstract: The present subject matter relates to multivariate optical analysis systems employ multivariate optical elements and utilize multivariate optical computing methods to determine information about a product carried by light reflected from or transmitted through the product. An exemplary method of processing and monitoring the product includes introducing the product at an inspection point; illuminating the product with a spectral-specific light though an optic lens; directing the light that has passed through at least a section of the product through at least one multivariate optical element to produce a first signal, the directed light carrying information about the product; detecting the signal at a detector; and determining at least one property of the product based upon the detector output.
    Type: Application
    Filed: March 27, 2008
    Publication date: December 30, 2010
    Inventors: Michael L. Myrick, Robert P. Freese, John Blackburn, David L. Perkins, Leonard Zheleznyak, Ryan Priore
  • Publication number: 20100302539
    Abstract: The present subject matter relates to methods of high-speed analysis of product samples. Light is directed to a portion of a product under analysis and reflected from or transmitted through the product toward a plurality of optical detectors. Signals from the detectors are compared with a reference signal based on a portion of the illuminating light passing through a reference element to determine characteristics of the product under analysis. The products under analysis may be stationary, moved by an inspection point by conveyor or other means, or may be contained within a container, the container including a window portion through which the product illuminating light may pass.
    Type: Application
    Filed: March 27, 2008
    Publication date: December 2, 2010
    Inventors: Michael L. Myrick, Robert P. Freese, David L. Perkins, Terrell Teague, William Soltmann, Leonard Zheleznyak
  • Publication number: 20100195105
    Abstract: The present subject matter relates to methods of high-speed analysis of product samples. Light is directed to a portion of a product under analysis and reflected from or transmitted through the product toward an optical detector. Signals for the detector are compared with reference signals based on a portion of the illuminating light passing through a reference element to determine characteristics of the product under analysis. Temperature within the analysis system is monitored and the output signals of the optical detectors are compensated or corrections are made within the analysis calculations to compensate or correct for the system temperature. The products under analysis may be stationary, moved by an inspection point by conveyor or other means, or may be contained within a container, the container including a window portion through which the product illuminating light may pass.
    Type: Application
    Filed: March 27, 2008
    Publication date: August 5, 2010
    Applicant: UNIVERSITY OF SOUTH CAROLINA
    Inventors: Michael L. Myrick, Robert P. Freese, William Soltmann, David L. Perkins, Leonard Zheleznyak