Patent · US Expired

Colored contact lens and method of making same

US6733126B2 · kind B2 · utility

24Cited by
61References
29Claims
0Family size

Inventor

Key dates

Filing dateJun 29, 2001
Grant dateMay 11, 2004
Priority date—
Expiry dateJan 31, 2022

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG02C7/046
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

A colored contact lens comprises a generally uncolored pupil region, a generally annular-shaped iris region surrounding the pupil region and adapted to cover at least 80% of a wearer's iris, a multicolored pattern on the iris region, and at least one generally uncolored region. The multicolored pattern is sufficiently colored to change the apparent color of an iris of a person wearing the contact lens and comprises a plurality of color elements. The generally uncolored region is defined by one or more of the colored elements. The generally uncolored region comprises at least one generally uncolored segment. The segment has a length of at least 30 microns and a width of no greater than 60 microns.

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