Pattern for color modifying contact lens
US5936705A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 31, 1997 |
| Grant date | Aug 10, 1999 |
| Priority date | — |
| Expiry date | Mar 31, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C7/046
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A color modifying contact lens having an iris pattern having color elements that surround a non-opaque pupil section, wherein the pattern comprises three annular regions: an inner region, an intermediate region, and an outer region. The inner and outer regions each comprise a population of color elements effective to enhance or modify the wearer's eye color as observed by the ordinary viewer. The intermediate region has an area of between about 25-72%, and comprises a population of color elements that covers between about 5-30% of the area within the intermediate region. The color elements in the intermediate region form an array of substantially radial macro-striations that alternate between those having color elements and those without color elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.