Patent · US Active

Snapshot photoacoustic photography using an ergodic relay

US11672426B2 · kind B2 · utility

4Cited by

142References

21Claims

0Family size

Assignee

CALIFORNIA INSTITUTE OF TECHNOLOGY · US

Inventors

Lihong Wang · Chesterfield, US
Yang Li · Santa Clara, US
Lei Li · Zhengzhou, CN

Key dates

Filing date	May 10, 2018
Grant date	Jun 13, 2023
Priority date	—
Expiry date	Apr 21, 2039

Classification

Technology area (CPC G)Physics
CPC primaryG01N2021/1706
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A photoacoustic imaging system is disclosed that includes an ergodic relay coupled optically to a light source configured to produce a light pulse and further coupled acoustically to a transducer. The ergodic relay is further configured to direct at least two PA signals to the transducer. Each of the at least two PA signals are produced at different positions within the field of view of the object to be imaged in response to illumination by a single light pulse. The transducer detects each of the at least two PA signals after each of at least two delays that correspond to the position at which each PA signal was produced.

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