Cosmetic holographic optical diffractive contact lenses
US7018041B2 · kind B2 · utility
2Cited by
5References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 2, 2004 |
| Grant date | Mar 28, 2006 |
| Priority date | — |
| Expiry date | Jun 2, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03H2270/55
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A contact lens has an inner surface adapted to be placed against the eye of a wearer and an outer surface bearing a cosmetic holographic optical diffraction grating that, when worn by a wearer, displays color to an observer of the contact lens. The holographic optical diffraction grating can diffract incident light to display one or more colors to the observer, or can be formed as an alphanumeric character(s) or graphic display to the observer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.