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:
Jan. 28, 2025
Filed:
Nov. 06, 2020
Divergent Technologies, Inc., Los Angeles, CA (US);
Darren Beckett, Corrales, NM (US);
Martin S. Piltch, Los Alamos, NM (US);
Scott Betts, Albuquerque, NM (US);
Alberto M. Castro, Santa Fe, NM (US);
Kevin Anderson, Albuquerque, NM (US);
Lars Jacquemetton, Santa Fe, NM (US);
Luis Aguilar, Santa Fe, NM (US);
DIVERGENT TECHNOLOGIES, INC., Los Angeles, CA (US);
Abstract
An additive manufacturing system comprises a build plane and an energy source configured to direct energy onto a work region of the build plane. An optical detector is configured to receive one or more optical signals from the work region. An optical filter is positioned between the work region and the optical detector, wherein the optical filter includes a first partially transmissive polarized filter having a first polarization axis and a second partially transmissive polarized filter having a second polarization axis. The first polarization axis is rotationally offset from the second polarization axis approximately 90 degrees. The optical filter improves the signal to noise ratio of the optical sensors.