Solid state electrically variable-focal length lens
US11493824B2 · kind B2 · utility
1Cited by
4References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 2, 2021 |
| Grant date | Nov 8, 2022 |
| Priority date | — |
| Expiry date | Mar 2, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2203/24
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A solid state electrically variable focal length lens includes a plurality of concentric rings of electro-optical material, wherein the electro-optical material comprises any material of a class of hydrogen-doped phase-change metal oxide and wherein each respective concentric ring further includes a transparent resistive sheet on a first face of the respective concentric ring, wherein the transparent resistive sheet extends along the first face, and a first voltage coupled between a first end and a second end of the transparent resistive sheet, wherein the first voltage may be varied to select an optical beam deflection angle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.