Sun protection device
US10274753B2 · kind B2 · utility
1Cited by
7References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 22, 2017 |
| Grant date | Apr 30, 2019 |
| Priority date | — |
| Expiry date | Mar 22, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/13324
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The invention is based on a sun protection device, in particular sun spectacles, with at least one optical sun protection filter comprising at least one liquid-crystal cell, with at least one sensor unit configured for capturing a solar irradiation, and with at least one control and/or regulation unit, which is configured for controlling and/or regulating a permeability of the optical sun protection filter depending on a solar irradiation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.