High-efficiency wide-angle beam steering system
US11366254B2 · kind B2 · utility
1Cited by
80References
8Claims
0Family size
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Key dates
| Filing date | Jan 17, 2020 |
| Grant date | Jun 21, 2022 |
| Priority date | — |
| Expiry date | Aug 28, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C2202/20
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Optical beam steering and focusing systems, devices, and methods that utilize diffractive waveplates are improved to produce high efficiency at large beam deflection angles, particularly around normal incidence, by diffractive waveplate architectures comprising a special combination of liquid crystal polymer diffractive waveplate both layers with internal twisted structure and at a layer with uniform structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.