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:
Mar. 15, 2011
Filed:
Mar. 19, 2008
Ruediger Seifert, Jena, DE;
Ernst Gaertner, Jena, DE;
Frank Reichel, Oelknitz, DE;
Erhard Dammann, Jena, DE;
Ruediger Seifert, Jena, DE;
Ernst Gaertner, Jena, DE;
Frank Reichel, Oelknitz, DE;
Erhard Dammann, Jena, DE;
JENOPTIK Laser, Optik, Systeme GmbH, Jena, DE;
Abstract
An apparatus for determining the particle size and/or particle shape of a mixture of particles is provided, comprising a feeding device, which passes the mixture of particles through a zone of measurement as a particle flow; an illumination module, which generates illumination beams and illuminates the zone of measurement with them; a detection module comprising two cameras, each recording an area of the zone of measurement assigned to the respective camera, said cameras recording the areas with different magnifications, and comprising an evaluating module, which determines the particle size and/or particle shape on the basis of the recordings of the cameras, characterized in that the illumination module is provided such that it illuminates the two areas with different intensities.