Optical filters and image sensors and camera modules and electronic devices
US11585969B2 · kind B2 · utility
0Cited by
4References
31Claims
0Family size
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Key dates
| Filing date | Mar 26, 2020 |
| Grant date | Feb 21, 2023 |
| Priority date | — |
| Expiry date | Mar 23, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B11/00
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical filter includes a light absorbing layer and a conductive nanodisk. The light absorbing layer includes a near-infrared absorbing material configured to absorb light of a first wavelength spectrum within a near-infrared wavelength spectrum. The conductive nanodisk is configured to absorb or reflect light of a second wavelength spectrum within the first wavelength spectrum. An image sensor includes the optical filter, a camera module includes the optical filter, and an electronic device includes the optical filter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.