Patent · US Active

Acoustic-optical imaging system

US11448585B2 · kind B2 · utility

0Cited by

11References

10Claims

0Family size

Assignee

COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES · FR

Inventors

Arnaud Verdant · Meylan, FR
William GUICQUERO · Les Ulis, FR

Key dates

Filing date	Jun 11, 2020
Grant date	Sep 20, 2022
Priority date	—
Expiry date	Sep 16, 2040

Classification

Technology area (CPC G)Physics
CPC primaryG01N2021/479
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

The present invention relates to an imaging system, including: a coherent light source delivering an object beam and a reference beam; a device of modulation of the object beam with a modulation signal; an image sensor arranged to receive an interference pattern resulting from a combination of the object beam and of the reference beam; and a demodulation device, the system being configured to, during a measurement phase: apply to the modulation signal a first pseudo-random sequence of jumps of a parameter selected among the phase, the frequency, and the amplitude; and simultaneously apply to the modulated portion of the object beam a second pseudo-random sequence of jumps of said parameter, wherein the first and second sequences of jumps of said parameter are non-correlated.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.