Laminated lenses with anti-fogging functionality
US10295821B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 17, 2017 |
| Grant date | May 21, 2019 |
| Priority date | — |
| Expiry date | Aug 17, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C2202/16
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Eyewear can include a laminated lens that has anti-fogging functionality. The lens can include an anti-fog layer configured to resist accumulation of condensate on a posterior surface of the lens and an interface layer comprising a thin layer of inorganic material with ceramic bulk properties. The interface layer can be disposed between the anti-fog layer and an adhesive layer configured to adhere to adjacent layers of the laminated lens. The adhesive layer can be disposed between two lens elements. One of the lens elements can include a polymer layer that provides stiffness to the lens and an electrically conductive layer deposited on the polymer layer. When electric current is applied across the electrically conductive layer via one or more electrodes, the lens can be heated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.