Patents by Inventor Judith E. Chapman

Judith E. Chapman 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).

  • Contact lenses providing improved visual acuity
    Patent number: 6244708
    Abstract: A method for obtaining contact lenses having optimized visual acuity involves providing the anterior surface or the posterior surface of the contact lens with a conic section having a shape factor value within the range of about 0.3 to 2.0, the shape factor value being selected so as to adjust spherical aberration in the central optical zone to a value within the range of about −0.2 diopter to about −0.6 diopter and to a value that provides optimal visual acuity.
    Type: Grant
    Filed: September 28, 1998
    Date of Patent: June 12, 2001
    Assignee: Bausch & Lomb Incorporated
    Inventors: Judith E. Chapman, Ian G. Cox, Graham W. Biddle, Timothy L. Comstock, Kevin J. DeRyke
  • Toric contact lenses
    Patent number: 6113236
    Abstract: A toric contact lens includes a posterior surface and an anterior surface, one of these surfaces including a toric optical zone, and these surfaces being shaped to form a ballast. A diameter of the posterior optical zone and a diameter of the anterior optical zone are selected to minimize thickness of the lens based on the cylindrical correction of the lens.
    Type: Grant
    Filed: March 27, 1998
    Date of Patent: September 5, 2000
    Assignee: Bausch & Lomb Incorporated
    Inventors: Judith E. Chapman, Paul M. Erickson
  • Contact lens design
    Patent number: 6099121
    Abstract: A contact lens includes an anterior surface and a posterior surface where the posterior surface includes a central zone and a peripheral zone, where the radius of curvature of the central zone is at least 0.4 mm, and preferably at least 0.6 mm, greater than the radius of curvature of the peripheral zone.
    Type: Grant
    Filed: June 7, 1996
    Date of Patent: August 8, 2000
    Assignee: Bausch & Lomb Incorporated
    Inventors: Judith E. Chapman, Ian G. Cox
  • Contact lenses providing improved visual acuity
    Patent number: 5815239
    Abstract: A method for obtaining contact lenses having optimized visual acuity involves providing the anterior surface or the posterior surface of the contact lens with a conic section having a shape factor value within the range of about 0.3 to 2.0, the shape factor value being selected so as to adjust spherical aberration in the central optical zone to a value within the range of about -0.2 diopter to about -0.6 diopter and to a value that provides optimal visual acuity.
    Type: Grant
    Filed: December 5, 1996
    Date of Patent: September 29, 1998
    Inventors: Judith E. Chapman, Ian G. Cox, Graham W. Biddle, Timothy L. Comstock, Kevin J. DeRyke