Varifocal lens
US9134568B2 · kind B2 · utility
2Cited by
8References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 19, 2012 |
| Grant date | Sep 15, 2015 |
| Priority date | — |
| Expiry date | Jul 22, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/294
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A varifocal lens including a first liquid crystal layer; a second liquid crystal layer disposed below the first liquid crystal layer; a common electrode disposed between the first liquid crystal layer and the second liquid crystal layer; a first electrode disposed above the first liquid crystal layer and having a curved shape; and a second electrode disposed below the second liquid crystal layer and having a curved shape.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.