Combination structures and optical filters and image sensors and camera modules and electronic devices
US11561331B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 2, 2020 |
| Grant date | Jan 24, 2023 |
| Priority date | — |
| Expiry date | Apr 13, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2207/101
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A combination structure includes a hybrid nanostructure array and a light-absorbing layer adjacent to the hybrid nanostructure array. The hybrid nanostructure array includes a plurality of hybrid nanostructures, each hybrid nanostructure includes a stack of a first nanostructure and a second nanostructure. The first nanostructure includes a first material. The second nanostructure includes a second material. The second material has a refractive index that is higher than a refractive index of the first material. The light-absorbing layer includes a near-infrared absorbing material configured to absorb light of at least a portion of a near-infrared wavelength spectrum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.