Electroactive optical device
US12271066B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 31, 2021 |
| Grant date | Apr 8, 2025 |
| Priority date | — |
| Expiry date | Aug 31, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2203/01
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An electroactive optical device that includes an optical substrate; a layer that includes an electroactive material capable of linearly polarizing electromagnetic radiation; at least two transparent electrodes, spaced one from the other, and each independently in contact with the layer containing the electroactive material; a source capable of applying an electric potential between the at least two electrodes; and a birefringent layer. Electromagnetic radiation transmitting through the device includes a first polarization state in the absence of an electrical potential between the at least two electrodes and the electromagnetic radiation transmitting through the device includes a second polarization state that is different from the first polarization state, in the presence of an electrical potential between the at least two electrodes. The electroactive optical device is operable to circularly polarize or elliptically polarize transmitted radiation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.