Optical article including an antireflecting coating having antifog properties and process for making same
US8709582B2 · kind B2 · utility
6Cited by
6References
31Claims
0Family size
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Key dates
| Filing date | Jul 30, 2010 |
| Grant date | Apr 29, 2014 |
| Priority date | — |
| Expiry date | Dec 28, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31975
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical article comprising a substrate and on at least one face of the substrate a multilayered antireflecting coating functioning in an interferential manner having antifog properties, said antireflecting coating including a last layer with a refractive index n≦1.55 and a physical thickness of 120 nm or less directly deposited on a high refractive index layer (HI layer) having a refractive index n>1.55, and a thickness of less than 500 nm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.