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:
Oct. 21, 2025
Filed:
Nov. 07, 2023
The United States of America, As Represented BY the Secretary of Commerce, Silver Spring, MD (US);
Daniel M. Murphy, Boulder, CO (US);
UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCE, Silver Spring, MD (US);
Abstract
Embodiments in accordance with the present invention relate to an apparatus for optical characterization of aerosol particles, including a laser source; a beam splitter configured to split the laser into two orthogonally polarized optical beams, wherein one component of the orthogonally polarized optical beam is deflected from the second component of the polarized optical beam at a predetermined angle; a cylindrical lens for collecting the two orthogonally polarized optical beams and focusing each of the optical beams to an interrogation region; an inlet positioned to deliver the sample gas including particles to the interrogation region as a single particle gas stream through the interrogation region; an ellipsoidal mirror positioned at a non-perpendicular angle adjacent to paths traversed by the polarized optical beams to reflect scattered optical beams from the particles traversing through the interrogation region; and a photodetector for measuring the scattered optical beams reflected by the mirror.