Patents by Inventor Raymond A. Applegate

Raymond A. Applegate 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: 9658470
    Abstract: Provided herein is a computer program product comprising a non-transitory computer-readable medium storing an algorithm to optimize a wavefront guided correction for a custom ophthalmic lens. The correction is determined from inputs of quantified wavefront error and registration uncertainty and a metric predictive of a visual performance task of interest and provides a level of visual performance within a user-defined performance range. Also provided is a method for optimizing a wavefront guided correction for a custom ophthalmic lens via inputting residual wavefront error values and quantified translational and rotational movements into an algorithm configured to determine the optimal wavefront guided correction therefrom and a custom ophthalmic lens comprising the correction.
    Type: Grant
    Filed: February 27, 2014
    Date of Patent: May 23, 2017
    Assignee: University of Houston System
    Inventors: Raymond A. Applegate, Jason D. Marsack, Konrad Pesudovs, Yue Shi
  • Patent number: 9022570
    Abstract: Provided herein are methods of manufacturing an optical lens using image simulation and/or predictive metrics to determine optical aberrations and an iterative algorithm to correct the aberrations to create a custom-designed surface for the optical lens and to implement the manufacture of the custom-designed surface onto the lens. Also, a computer program product storing the method is provided. In addition, there are provided a customized optical lens designed by the method and a method of correcting optical aberration to improve visual using the customized optical lens. Further provided is a method of manufacturing a custom lens effective to mimic a subset of optical aberrations.
    Type: Grant
    Filed: November 9, 2006
    Date of Patent: May 5, 2015
    Assignee: The University of Houston System
    Inventors: Raymond A. Applegate, Jason D. Marsack, Konrad Pesudovs
  • Publication number: 20140176900
    Abstract: Provided herein is a computer program product comprising a non-transitory computer-readable medium storing an algorithm to optimize a wavefront guided correction for a custom ophthalmic lens. The correction is determined from inputs of quantified wavefront error and registration uncertainty and a metric predictive of a visual performance task of interest and provides a level of visual performance within a user-defined performance range. Also provided is a method for optimizing a wavefront guided correction for a custom ophthalmic lens via inputting residual wavefront error values and quantified translational and rotational movements into an algorithm configured to determine the optimal wavefront guided correction therefrom and a custom ophthalmic lens comprising the correction.
    Type: Application
    Filed: February 27, 2014
    Publication date: June 26, 2014
    Inventors: Raymond A. Applegate, Jason D. Marsack, Konrad Pesudovs, Yue Shi
  • Publication number: 20110157545
    Abstract: Provided herein are methods of manufacturing an optical lens using image simulation and/or predictive metrics to determine optical aberrations and an iterative algorithm to correct the aberrations to create a custom-designed surface for the optical lens and to implement the manufacture of the custom-designed surface onto the lens. Also, a computer program product storing the method is provided. In addition, there are provided a customized optical lens designed by the method and a method of correcting optical aberration to improve visual using the customized optical lens. Further provided is a method of manufacturing a custom lens effective to mimic a subset of optical aberrations.
    Type: Application
    Filed: November 9, 2006
    Publication date: June 30, 2011
    Inventors: Raymond A. Applegate, Jason D. Marsack, Konrad Pesudovs
  • Patent number: 7857451
    Abstract: An method and system for determining the appropriate refractive prescription in a clinical optometry or opthalmology setting. Data in the form of aberrometric input, patient history and other information, and/or other environmental data is used to optimize a real-world prescription for an individual's optic needs through the use of a equivalent quadratic fitting calculation or a simulated through focus experiment.
    Type: Grant
    Filed: December 13, 2004
    Date of Patent: December 28, 2010
    Assignees: Indiana University Research and Technology Corporation, The University of Houston
    Inventors: Larry N. Thibos, Arthur Bradley, Raymond A. Applegate
  • Patent number: 7357509
    Abstract: Several metrics to predict the subjective impact of the eye's wavefront aberrations are presented. The metrics can be based on RMS wavefront errors or slopes, the area of the critical pupil, a curvature parameter, the point spread function, the optical transfer function, or the like. Other techniques include the fitting of a sphero-cylindrical surface, the use of multivariate metrics, and customization of the metric for patient characteristics such as age.
    Type: Grant
    Filed: April 28, 2004
    Date of Patent: April 15, 2008
    Assignees: University of Rochester, University of Houston, Indiana University
    Inventors: David R. Williams, Raymond A. Applegate, Larry N. Thibos
  • Patent number: 7325927
    Abstract: A method for classifying a patient's eye includes the steps of: obtaining normal and abnormal wavefront aberration data from normal and abnormal eyes; fitting the normal and abnormal eye wavefront aberration data with a basis function to decompose the normal and abnormal eye wavefront aberration data into normal and abnormal eye mathematical components; examining the normal and abnormal eye mathematical components to develop mathematical optical filters capable of discriminating between normal and abnormal eyes, using statistical methods to define a probability distribution; obtaining wavefront aberration data from the patient's eye; fitting the patient's wavefront aberration data with a basis function to decompose the patient's wavefront aberration data into the patient's set of mathematical components; examining the patient's set of mathematical components using the mathematical optical filters to generate a patient filter value; and classifying the patient's eye by comparing the patient filter value wit
    Type: Grant
    Filed: January 11, 2006
    Date of Patent: February 5, 2008
    Assignee: The University of Houston
    Inventors: Raymond A. Applegate, Jason Marsack, Konrad Pesudovs
  • Publication number: 20060187413
    Abstract: A method for classifying a patient's eye includes the steps of: obtaining normal and abnormal wavefront aberration data from normal and abnormal eyes; fitting the normal and abnormal eye wavefront aberration data with a basis function to decompose the normal and abnormal eye wavefront aberration data into normal and abnormal eye mathematical components; examining the normal and abnormal eye mathematical components to develop mathematical optical filters capable of discriminating between normal and abnormal eyes, using statistical methods to define a probability distribution; obtaining wavefront aberration data from the patient's eye; fitting the patient's wavefront aberration data with a basis function to decompose the patient's wavefront aberration data into the patient's set of mathematical components; examining the patient's set of mathematical components using the mathematical optical filters to generate a patient filter value; and classifying the patient's eye by comparing the patient filter value with t
    Type: Application
    Filed: January 11, 2006
    Publication date: August 24, 2006
    Applicant: The University of Houston
    Inventors: Raymond Applegate, Jason Marsack, Konrad Pesudovs
  • Patent number: 6905210
    Abstract: Methods, systems, and media relating the display of scattering and/or absorption characteristics of an optical medium. For scattering measurements, a Hartmann-Shack calibration image of a measurement system is acquired to define a first plurality of point spread functions. A Hartmann-Shack test image of the medium is acquired to define a second plurality of point spread functions. A shift is determined between the test image and the calibration image. A point spread of each of the second plurality of point spread functions is measured, each of the second plurality of point spread functions including a component due to optical aberration of the medium and a component due to scatter. The component due to optical aberration is determined using the shift. The component due to optical aberration is deconvolved to determine the component due to scatter. A display of the local scattering characteristics is generated using the component due to scatter.
    Type: Grant
    Filed: December 1, 2003
    Date of Patent: June 14, 2005
    Assignees: Board of Regents, The University of Texas System, Advanced Research and Technology Institute
    Inventors: Raymond A. Applegate, Larry N. Thibos
  • Publication number: 20040263786
    Abstract: Several metrics to predict the subjective impact of the eye's wavefront aberrations are presented. The metrics can be based on RMS wavefront errors or slopes, the area of the critical pupil, a curvature parameter, the point spread function, the optical transfer function, or the like. Other techniques include the fitting of a sphero-cylindrical surface, the use of multivariate metrics, and customization of the metric for patient characteristics such as age.
    Type: Application
    Filed: April 28, 2004
    Publication date: December 30, 2004
    Inventors: David R. Williams, Raymond A. Applegate, Larry N. Thibos
  • Publication number: 20040119942
    Abstract: Methods, systems, and media relating the display of scattering and/or absorption characteristics of an optical medium. For scattering measurements, a Hartmann-Shack calibration image of a measurement system is acquired to define a first plurality of point spread functions. A Hartmann-Shack test image of the medium is acquired to define a second plurality of point spread functions. A shift is determined between the test image and the calibration image. A point spread of each of the second plurality of point spread functions is measured, each of the second plurality of point spread functions including a component due to optical aberration of the medium and a component due to scatter. The component due to optical aberration is determined using the shift. The component due to optical aberration is deconvolved to determine the component due to scatter. A display of the local scattering characteristics is generated using the component due to scatter.
    Type: Application
    Filed: December 1, 2003
    Publication date: June 24, 2004
    Applicant: Board of Regents, The University of Texas System, and Advanced Research and Technology Institute
    Inventors: Raymond A. Applegate, Larry N. Thibos
  • Patent number: 6659613
    Abstract: Methods, systems, and media relating the display of scattering and/or absorption characteristics of an optical medium. For scattering measurements, a Hartmann-Shack calibration image of a measurement system is acquired to define a first plurality of point spread functions. A Hartmann-Shack test image of the medium is acquired to define a second plurality of point spread functions. A shift is determined between the test image and the calibration image. A point spread of each of the second plurality of point spread functions is measured, each of the second plurality of point spread functions including a component due to optical aberration of the medium and a component due to scatter. The component due to optical aberration is determined using the shift. The component due to optical aberration is deconvolved to determine the component due to scatter. A display of the local scattering characteristics is generated using the component due to scatter.
    Type: Grant
    Filed: March 27, 2001
    Date of Patent: December 9, 2003
    Assignees: Board of Regents, The University of Texas System, Advanced Research and Technology Institute
    Inventors: Raymond A. Applegate, Larry N. Thibos
  • Publication number: 20020097376
    Abstract: Methods, systems, and media relating the display of scattering and/or absorption characteristics of an optical medium. For scattering measurements, a Hartmann-Shack calibration image of a measurement system is acquired to define a first plurality of point spread functions. A Hartmann-Shack test image of the medium is acquired to define a second plurality of point spread functions. A shift is determined between the test image and the calibration image. A point spread of each of the second plurality of point spread functions is measured, each of the second plurality of point spread functions including a component due to optical aberration of the medium and a component due to scatter. The component due to optical aberration is determined using the shift. The component due to optical aberration is deconvolved to determine the component due to scatter. A display of the local scattering characteristics is generated using the component due to scatter.
    Type: Application
    Filed: March 27, 2001
    Publication date: July 25, 2002
    Inventors: Raymond A. Applegate, Larry N. Thibos
  • Patent number: 5360010
    Abstract: Described herein are a range of techniques and apparatuses used to study the retinal vasculature near the fovea, a description of the need and rationale for noninvasive in vivo monitoring of the retinal vasculature, a presentation of theoretical and practical considerations which demonstrate that entoptic visualization of the smallest capillaries near the fovea is optimized by a short wavelength source of light which is constrained to enter the eye through a small limiting aperture moving in space near the eye at an optimized velocity in a circular or irregular path, and a discussion of the feasibility of using these techniques in a museum or novelty device as well as a research and clinical tool.
    Type: Grant
    Filed: November 2, 1992
    Date of Patent: November 1, 1994
    Assignee: Board of Regents, The University of Texas System
    Inventors: Raymond A. Applegate, Arthur Bradley
  • Patent number: 5016643
    Abstract: Described herein are an apparatus and range of techniques used to study the retinal vasculature near the fovea, a description of the need and rationale for noninvasive in vivo monitoring of the retinal vasculature, a presentation of theoretical and practical considerations which demonstrate that entoptic visualization of the smallest capillaries near the fovea is optimized by a small short wavelength source (1 mm or less) rotating at 3.5 Hz in a circular path (radius 2 mm) imaged in the plane of the eye's entrance pupil and a discussion of the feasibility of using these techniques as a reseResearch relating to the development of the present invention was supported in part by grants from the United States Department of Health and Human Services (NIH EY08005 and EY07638). The United States government may have corresponding rights to the license and use of any resulting patent.
    Type: Grant
    Filed: May 2, 1990
    Date of Patent: May 21, 1991
    Assignee: Board of Regents, The University of Texas System
    Inventors: Raymond A. Applegate, Arthur Bradley
  • Patent number: 4974594
    Abstract: A biomedical "tab" type of electrode suited for use with male and female connectors of the type that are adapted to snap together is provided. The female connector is located at one end of a lead wire. A male snap connector is secured to the lead wire by means of a flexible tether. The electrode includes an extension or tab having an opening therein. The tether is mounted on the lead wire and is preferably adapted to slide along its length. During use, the male snap connector can be moved into proximity of the female connector and aligned with it on opposite sides of the tab portion of the electrode and then brought into contact and connected to each other through the opening in the tab to establish both a mechanical and an electrical connection with the tab of the electrode.
    Type: Grant
    Filed: December 4, 1989
    Date of Patent: December 4, 1990
    Assignee: Lec Tec Corporation
    Inventor: Lee M. Berlin