Image capture using infrared and visible spectrum light
US9148589B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 12, 2012 |
| Grant date | Sep 29, 2015 |
| Priority date | — |
| Expiry date | Dec 28, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/11
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A device (e.g., an image capture device, or camera) includes a sensor and a filtering apparatus. Incident light received by the device includes visible spectrum light and infrared light. The filtering apparatus can alternately filter out the infrared light while allowing the sensor to be exposed to the visible spectrum light, and filter out the visible spectrum light while allowing the sensor to be exposed to the infrared light. For example, the filtering apparatus can include a shutter that, when in a first position, filters out the infrared light and, when in a second position, filters out the visible spectrum light. In particular, the shutter can be a rotating shutter that includes a visible spectrum pass filter in one sector and an infrared pass filter in another sector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.