Patents Assigned to Sarver & Associates Inc.
  • Continuous two-dimensional corneal topography target
    Patent number: 7938537
    Abstract: A two-dimensional reflection pattern suitable for corneal topography that uses sinusoidal profiles of both intensity and color values. The technique provides a more robust image processing due to the ability to apply digital band pass filters, continuous data for improved surface reconstruction, and the ability to directly measure the meridian of the reflection pattern source point when the corneal surface normal does not lie in the meridian of the measurement instrument.
    Type: Grant
    Filed: March 12, 2010
    Date of Patent: May 10, 2011
    Assignee: Sarver & Associates, Inc.
    Inventor: Edwin J. Sarver
  • Monochromatic multi-resolution corneal topography target
    Patent number: 7740356
    Abstract: A method to encode both high-resolution and low-resolution reflected features of a cornea to improve the measurements for reflection based corneal topography systems. The corneal topography reflective target provides for multiple resolutions of measurements to be obtained from a single acquisition.
    Type: Grant
    Filed: January 21, 2009
    Date of Patent: June 22, 2010
    Assignee: Sarver & Associates, Inc.
    Inventor: Edwin J. Sarver
  • Continuous two-dimensional corneal topography target
    Patent number: 6926408
    Abstract: A means to generate a continuous two-dimensional reflection pattern suitable for corneal topography that uses sinusoidal profiles of both intensity and color values. The technique provides a more robust image processing due to the ability to apply digital band pass filters, continuous data for improved surface reconstruction, and the ability to directly measure the meridian of the reflection pattern source point when the corneal surface normal does not lie in the meridian of the measurement instrument.
    Type: Grant
    Filed: May 23, 2003
    Date of Patent: August 9, 2005
    Assignee: Sarver & Associates Inc.
    Inventor: Edwin J. Sarver