Liquid crystal diffractive devices with nano-scale pattern and methods of manufacturing the same
US11067860B2 · kind B2 · utility
8Cited by
82References
21Claims
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Key dates
| Filing date | Oct 26, 2017 |
| Grant date | Jul 20, 2021 |
| Priority date | — |
| Expiry date | Oct 26, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2203/28
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical device includes a liquid crystal layer having a first plurality of liquid crystal molecules arranged in a first pattern and a second plurality of liquid crystal molecules arranged in a second pattern. The first and the second pattern are separated from each other by a distance of about 20 nm and about 100 nm along a longitudinal or a transverse axis of the liquid crystal layer. The first and the second plurality of liquid crystal molecules are configured as first and second grating structures that can redirect light of visible or infrared wavelengths.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.