Wearable electro-optical device using electrochromic layer
US11656482B2 · kind B2 · utility
1Cited by
2References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 18, 2019 |
| Grant date | May 23, 2023 |
| Priority date | — |
| Expiry date | Aug 11, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2001/15145
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Flexible plastic screen for glasses, sunglasses or helmet faceshields with controlled light transmission based on applied electrical voltage. The screen consists of two transparent flexible conductive polymer electrodes disposed and an electrochromic layer disposed between them. The electrochromic layer is a homogeneous mixture of active electrochromic components dissolved in a polymer matrix. The electrochromic screen is operable to vary the light transmission of any wearable electro-optical devices, such as the glasses, for creating an effect of a blackout for augmented/virtual reality glasses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.