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. 01, 2020
Filed:
Jul. 26, 2019
Heraeus Quarzglas Gmbh & Co. KG, Hanau, DE;
Stefan Weidlich, Wiesbaden, DE;
Markus Schmidt, Jena, DE;
Heraeus Quarzglas GmbH & Co. KG, Hanau, DE;
Abstract
One aspect is an apparatus for analyzing particles a capillary as a measuring cell with a hollow channel for receiving or passing through a test sample containing the particles includes a light source for generating a light beam, an optical device for coupling the light beam into the hollow channel at an input point for the purpose of illuminating the test sample, and a detector for detecting scattered light exiting the hollow channel. In one aspects, the hollow channel has an internal diameter Din the range of 10 μm to 60 μm, that the light beam has a radial light intensity distribution with a minimum beam diameter D, wherein the following applies to the diameter ratio D/D: 0.05<D/D<2.00, and that the light beam has an angle of incidence of less than 2 degrees in relation to the hollow channel's longitudinal axis on entering the hollow channel.