Combined visible and infrared image sensor incorporating selective infrared optical filter
US10425597B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 12, 2017 |
| Grant date | Sep 24, 2019 |
| Priority date | — |
| Expiry date | Apr 21, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/131
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image sensor system, comprising a pixel array that includes at least a first type pixel and a second type pixel, wherein each first type pixel is configured to sense light of a first optical spectral range; and each second pixel is configured to sense light of a second optical spectral range; an optical filter located above the pixel array, said optical filter configured to pass a third optical spectral range and a fourth optical spectral range that is different from the third optical spectral range, wherein the fourth optical spectral range is less than the second optical spectral range; a light source that emits light in a fifth optical spectral range, wherein the fifth optical spectral range at least overlaps with the fourth optical spectral range; and a controller that controls the image sensor system to selectively operate in a first mode that uses said first optical spectral range, and a second mode that uses said second optical spectral range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.