Imaging systems with high dynamic range and phase detection pixels
US10498990B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 21, 2018 |
| Grant date | Dec 3, 2019 |
| Priority date | — |
| Expiry date | Jul 6, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/10
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A pixel may include an inner sub-pixel group and an outer sub-pixel group. The inner sub-pixel group may have a smaller light collecting area than the outer sub-pixel group and therefore be less sensitive to light than the outer sub-pixel group. This may enable the pixel to be used to generate high dynamic range images, even with the sub-pixel groups using the same length integration time. The inner sub-pixel group may be nested within the outer sub-pixel group. Additionally, one or both of the inner sub-pixel group and the outer sub-pixel group can be split into at least two sub-pixels so that the sub-pixel group can be used to gather phase detection data. Adjacent pixels may have sub-pixel groups split in different directions to enable detection of vertical and horizontal edges in a scene.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.