Optical assembly for the hyperspectral illumination and evaluation of an object

US11371932B2 · kind B2 · utility

Assignees

• Fraunhofer-Gesellschaft zur förderung der angewandten Forschung e.V. · DE
• Friedrich-Schiller-Universitat Jena · DE

Inventors

• Falk Eilenberger · Jena, DE
• Markus GRAEFE · Jena, DE
• Frank Setzpfandt · Jena, DE
• Thomas Pertsch · Oettingen, DE

Key dates

• Filing date: Jun 27, 2019
• Grant date: Jun 28, 2022
• Expiry date: Jul 28, 2039

Classification

• Technology area (CPC G): Physics
• CPC primary: G02F1/3551
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

An optical assembly for the illumination and hyperspectral evaluation of an object, having a light source or an optical element at which a light source radiates, wherein the light source or the optical element is designed to divide pairs of unambiguously assignable photons into a first light beam and a second light beam so that the first light beam hits a first detector system and the second light beam is directed at an object and light radiation coming from the object is directed at an optical element which spectrally decomposes light radiation and, from the optical element spectrally decomposing said light radiation, is directed at a second detector system. The first light beam can also be directed at a spectrally decomposing optical element and, from there, at a first detector system, and the light radiation coming from the object can be directed directly at the second detector system. The first detector system is designed to perform a spatially resolved sensing of the first light beam, and the first detector system or the second detector system is designed to perform a spectrally resolved sensing of the second light beam. The detector systems are connected to an electronic eval…