The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 15, 2020
Filed:
Jul. 14, 2016
Trumpf Photonic Components Gmbh, Ulm, DE;
Alexander Marc Van Der Lee, Eindhoven, NL;
Joachim Wilhelm Hellmig, Eindhoven, NL;
Johannes Hendrikus Maria Spruit, Eindhoven, NL;
Holger Moench, Eindhoven, NL;
Cornelis Reinder Ronda, Eindhoven, NL;
Koray Karakaya, Eindhoven, NL;
TRUMPF PHOTONIC COMPONENTS GMBH, Ulm, DE;
Abstract
The invention describes a laser sensor module () for particle density detection. The laser sensor module () comprising at least one first laser (), at least one first detector () and at least one electrical driver (). The first laser () is adapted to emit first laser light in reaction to signals provided by the at least one electrical driver (). The at least one first detector () is adapted to detect a first self-mixing interference signal of an optical wave within a first laser cavity of the first laser (). The first self-mixing interference signal is caused by first reflected laser light reentering the first laser cavity, the first reflected laser light being reflected by a particle receiving at least a part of the first laser light. The laser sensor module () is adapted to reduce multiple counts of the particle. The invention further describes a related method and computer program product.