Optical metalens systems
US12092791B2 · kind B2 · utility
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10References
17Claims
0Family size
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Key dates
| Filing date | Feb 28, 2022 |
| Grant date | Sep 17, 2024 |
| Priority date | — |
| Expiry date | May 28, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2207/101
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Various embodiments and configurations of optical imaging systems are described herein that utilize a metalens for narrowband deflection of target frequencies. For example, one embodiment of a multifrequency metalens includes an in-plane spatially multiplexed array of frequency-specific nanopillars or frequency-specific rows/columns of nanopillars that are intermingled with one another. In other embodiments, transmissive metalenses and/or reflective metalenses are tuned to focus color-separated visible light into red, green, and blue (RGB) channels of a digital image sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.