Patents by Inventor Edmond H. Thall

Edmond H. Thall 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).

  • Retinal diagnostic device
    Patent number: 5880813
    Abstract: An ophthalmological diagnostic system and method providing improved resolution and enhanced visualization of internal anatomical structures of the eye. The optical transform of light reflected and scattered by the internal anatomical structures of the eye is modified to selectively provide dark field, phase contrast and fourier filtered images, and also to provide interference patterns of difficult to visualize transparent or translucent internal structures of the eye such as the nerve fiber layer of the retina.
    Type: Grant
    Filed: November 17, 1997
    Date of Patent: March 9, 1999
    Inventor: Edmond H. Thall
  • Retinal diagnostic device
    Patent number: 5751395
    Abstract: An ophthalmological diagnostic system and method providing improved resolution and enhanced visualization of internal anatomical structures of the eye. The optical transform of light reflected and scattered by the internal anatomical structures of the eye is modified to selectively provide dark field, phase contrast and fourier filtered images, and also to provide interference patterns of difficult to visualize transparent or translucent internal structures of the eye such as the nerve fiber layer of the retina.
    Type: Grant
    Filed: January 10, 1997
    Date of Patent: May 12, 1998
    Inventor: Edmond H. Thall
  • Method and apparatus for measuring corneal topography
    Patent number: 5116115
    Abstract: A thin, flexible, reflecting diffuse material is placed or formed on an anterior surface of a cornea. The material has properties that precisely conform to changes in shape of the cornea. This allows remote sensing of the shape of the cornea by projected fringe contouring.
    Type: Grant
    Filed: May 9, 1990
    Date of Patent: May 26, 1992
    Assignee: Wyko Corporation
    Inventors: Steven R. Lange, Edmond H. Thall