Glasses
US11402664B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 23, 2018 |
| Grant date | Aug 2, 2022 |
| Priority date | — |
| Expiry date | Feb 29, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C11/10
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present disclosure provides a pair of glasses, including spectacle lenses and a sensing device, wherein the spectacle lens includes two layers of lenses which form a cavity, wherein the layer of lens on a wearing side of the spectacle lens is deformable, the cavity is filled with a first liquid and a second liquid, a volume of the first liquid is greater than that of the second liquid, and an electrowetting film is provided oppositely on a middle portion of an inner surface of at least one layer of lens, and wherein the sensing device is configured to measure a distance between the glasses and an object to be observed, wherein in the case where the measured distance is less than a preset spacing, the sensing device is turned on to apply a voltage to the electrowetting film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.