Patents by Inventor Keith Stantz

Keith Stantz 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).

  • Method for computing visual performance from objective ocular aberration measurements
    Patent number: 6607274
    Abstract: A method for computing the visual performance of a human or animal subject based on objective measurements of visual refraction, including higher order aberrations, includes measuring wavefront aberrations of a subject ocular pupil, computing a point-spread-function from the measured pupil aberration, providing a test image, and convolving the test image with the point-spread-function. A simulated image may be produced from the convolution result of the test image with the point-spread-function. One or more specific terms of the point-spread-function may be subtracted therefrom prior to the convolving step to simulate an effect of a correcting means, such as spectacles lenses, contact lenses, or laser surgery. A best correction for a given subject may be determined by adjusting the terms that are subtracted to optimize the resultant image.
    Type: Grant
    Filed: April 4, 2002
    Date of Patent: August 19, 2003
    Assignee: WaveFront Sciences, Inc.
    Inventors: Keith Stantz, Daniel R. Neal, Ron Rammage
  • Method for computing visual performance from objective ocular aberration measurements
    Publication number: 20020186346
    Abstract: A method for computing the visual performance of a human or animal subject based on objective measurements of visual refraction, including higher order aberrations, includes measuring wavefront aberrations of a subject ocular pupil, computing a point-spread-function from the measured pupil aberration, providing a test image, and convolving the test image with the point-spread-function. A simulated image may be produced from the convolution result of the test image with the point-spread-function. One or more specific terms of the point-spread-function may be subtracted therefrom prior to the convolving step to simulate an effect of a correcting means, such as spectacles lenses, contact lenses, or laser surgery. A best correction for a given subject may be determined by adjusting the terms that are subtracted to optimize the resultant image.
    Type: Application
    Filed: April 4, 2002
    Publication date: December 12, 2002
    Inventors: Keith Stantz, Daniel R. Neal, Ron Rammage