Face protective optical element
US10175390B2 · kind B2 · utility
6Cited by
1References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 16, 2014 |
| Grant date | Jan 8, 2019 |
| Priority date | — |
| Expiry date | Jan 16, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B2551/00
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
An optical element is provided which reflects a reduced amount of light even under a very high intensity lighting system used for a surgical operation, a dental treatment etc., has anti-fogging performance, and is transparent and useful for face protection. The optical element has a flexible transparent substrate and a plurality of structures disposed on opposite surfaces of the substrate at a pitch equal to or less than the wavelength of visible light. The structures are formed from a cured product of a resin having a hydrophilic functional group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.