Adaptive colour filter for digital sensor
US9473755B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 19, 2014 |
| Grant date | Oct 18, 2016 |
| Priority date | — |
| Expiry date | Dec 19, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/135
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Color filter for a digital sensor formed of a two-dimensional array of pixels, each pixel corresponding to a given color. The pixels are arranged in at least one base pattern repeated over a given surface, which has at least three pixels of three different colors. The color filter is characterized in that it includes a plurality of distinct base patterns, each of these patterns having predefined optical properties of sensitivity, of color quality and of resolution, and in that it is subdivided into a plurality of distinct areas, each corresponding to a two-dimensional sub-array of pixels. Each of the base patterns is repeated several times along each dimension of the two-dimensional sub-array, respectively over the entirety of a corresponding area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.