Nanophotonic hyperspectral/lightfield superpixel imager
US10033948B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 27, 2016 |
| Grant date | Jul 24, 2018 |
| Priority date | — |
| Expiry date | May 27, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S977/954
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Systems and methods are described that relate to an optical system including an image sensor optically-coupled to at least one nanophotonic element. The image sensor may include a plurality of superpixels. Each respective superpixel of the plurality of superpixels may include at least a respective first pixel and a respective second pixel. The at least one nanophotonic element may have an optical phase transfer function and may include a two-dimensional arrangement of sub-wavelength regions of a first material interspersed within a second material, the first material having a first index of refraction and the second material having a second index of refraction. The nanophotonic element is configured to direct light toward individual superpixels in the plurality of superpixels, and to direct light toward the first or second pixel in each individual superpixel based on a wavelength dependence or a polarization dependence of the optical phase transfer function.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.