Patent · US Active

Custom contact lenses with fiducial markings

US8636357B2 · kind B2 · utility

4Cited by

10References

3Claims

0Family size

Assignee

Johnson & Johnson Vision Care, Inc. · US

Inventors

Khaled Chehab · Jacksonville, US
Michael J. Collins · Mount Nebo, AU
Jeffrey H. Roffman · Jacksonville, US
Ross Franklin · Jacksonville, US
Brett A. Davis · Brisbane, AU
D. Robert Iskander · Ipswich, AU

Key dates

Filing date	Jul 31, 2009
Grant date	Jan 28, 2014
Priority date	—
Expiry date	Mar 11, 2030

Classification

Technology area (CPC G)Physics
CPC primaryG02C7/04
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A contact lens having one or more fiducial marks that allow the measurement of lens rotation and centration. The lens may be a trial lens. The lenses can be used to apply correction factors for sphero-cylindrical refractive error, higher order aberrations, and corneal topography.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.