Detector with deflecting elements for coherent imaging
US12117622B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 13, 2021 |
| Grant date | Oct 15, 2024 |
| Priority date | — |
| Expiry date | Jun 8, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S7/4814
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A detection device for a coherent imaging system includes a detector comprising a matrix array of pixels, each pixel comprising a photodetector component having a photosensitive surface, the detector being designed to be illuminated by a coherent beam, called the image beam consisting of grains of light called speckle grains, a matrix array of transmissive deflecting elements configured to be individually orientable by means of an electrical signal, so as to deflect a fraction of the image beam incident on the group, and thus modify the spatial distribution of the speckle grains in the plane of the photosensitive surface, each group of one or more pixels further comprising a feedback loop associated with the deflecting element and configured to actuate the deflecting element so as to optimize the signal-to-noise ratio from the light detected by the one or more photodetector components of the group of pixels, the feedback loop comprising a feedback circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.