Polarized eyewear
US8177358B2 · kind B2 · utility
17Cited by
5References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 19, 2010 |
| Grant date | May 15, 2012 |
| Priority date | — |
| Expiry date | Jan 6, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C7/12
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An article of polarized eyewear has a lens, with a first substrate lens material transparent to visible light and a pattern of elongated structures formed from at least a second material having a complex index of refraction, wherein the second material is deposited directly onto a curved surface of the first substrate lens material. A pitch between adjacent elongated structures is less than 300 nm and a width of each elongated structure is less than 90% of the pitch. A photochromic material is deposited onto the polarized eyewear.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.