Varifocal lens
US12326646B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 23, 2022 |
| Grant date | Jun 10, 2025 |
| Priority date | — |
| Expiry date | Aug 20, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B3/14
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A varifocal lens is provided. A varifocal lens includes: a transparent substrate having a plate shape; a first lens layer stacked on a first area formed on one surface of the transparent substrate; a second lens layer stacked on a second area which is spaced apart from the first area and formed on the one surface of the transparent substrate; and a power supply connected to the first lens layer and the second lens layer to, based on the second lens layer, apply a first voltage to the first lens layer. The power supply may adjust the first voltage and change a refractive index of light, which is incident on the other surface of the transparent substrate and transmitted toward the one surface of the transparent substrate, to adjust a focal length.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.