Device for revealing spatial variations in the polarisation of electromagnetic radiation

US11959953B2 · kind B2 · utility

Assignees

• OFFICE NATIONAL D'ETUDES ET DE RECHERCHES AÉROSPATIALES · FR
• Centre National d'Études Spatiales · FR
• UNIVERSITE TOULOUSE III—PAUL SABATIER · FR
• CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE · FR

Inventors

• Daniel Prost · Toulouse, FR
• Maxime Romier · Cugnaux, FR
• Daniel Belot · Léguevin, FR
• Patrice Simon · Toulouse, FR
• Kévin Brousse · Toulouse, FR
• Pierre-Louis Taberna · Moissy-Cramayel, FR

Key dates

• Filing date: Sep 16, 2020
• Grant date: Apr 16, 2024
• Expiry date: Apr 10, 2041

Classification

• Technology area (CPC G): Physics
• CPC primary: G01J2005/0077
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A device is suitable for revealing spatial variations in polarization of an electromagnetic radiation, in a form of localized temperature variations. The device includes a surface of a carrier which is electrically and thermally insulating, and includes an array of patterns which each consist of at least one rectilinear segment of a sensitive material, of which the orientation is variable within each pattern or between neighboring patterns. Such device may be used with a thermal camera to reveal, in infrared images, temperature variations which are localized at segments not perpendicular to a local direction of linear polarization of the radiation.