Integrated imager circuit comprising a monolithic array of single photon avalanche diodes
US7262402B2 · kind B2 · utility
80Cited by
5References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 14, 2006 |
| Grant date | Aug 28, 2007 |
| Priority date | — |
| Expiry date | Feb 14, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10F30/225
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An integrated imager circuit having a monolithic array of single photon avalanche diodes (SPADs) for capturing an image of a scene when said scene is hit by an optical pulse. The array has a plurality of SPADs connected to 2D readout circuits which determines the intensity of the light reflected by the scene by counting the number of photons received by the SPADs during a period of time. A plurality of SPADs connected to 3D readout circuits determines the distance to the scene by determining the elapsed time between the emission of each pulse and reception of the corresponding reflected photons.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.