Patent · US Expired

Active multiple-color imaging polarimetry

US7072039B2 · kind B2 · utility

5Cited by
8References
20Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 20, 2003
Grant dateJul 4, 2006
Priority date
Expiry dateJun 18, 2024

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01N2201/0691
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

Remotely sensing a target may include generating a first beam of optical radiation that is modulated at a first frequency and polarized at a first polarization. A second beam of optical radiation that is modulated at a second frequency and polarized at a second polarization may also be generated. The first and second beams of optical radiation may be transmitted to the target. Radiation at the first polarization and radiation at the second polarization may be detected from the target using a phase sensitive technique and the first and second frequencies.

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