Image sensor and imaging apparatus having an array of interference filters
US10504951B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 10, 2018 |
| Grant date | Dec 10, 2019 |
| Priority date | — |
| Expiry date | Aug 10, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10F39/802
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Example embodiments relate to image sensors and imaging apparatuses. One embodiment includes an image sensor for acquiring an image of an object. The image sensor includes an array of photo-sensitive areas formed on a substrate. Each photo-sensitive area is a continuous area within the substrate and is configured to detect incident light. The image sensor also includes an array of interference filters. Each inference filter is configured to selectively transmit a wavelength band. The array of interference filters is monolithically integrated on the array of photo-sensitive areas. A plurality of the interference filers is associated with a single photo-sensitive area of the array of photo-sensitive areas. Each interference filter in the plurality of interference filters is configured to selectively transmit a unique wavelength band to the photo-sensitive area and each interference filter in the plurality of interference filters is associated with a respective portion of the single photo-sensitive area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.