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:
Apr. 13, 2021
Filed:
Jan. 31, 2019
Lawrence Livermore National Security, Llc., Livermore, CA (US);
Derrek R. Drachenberg, Livermore, CA (US);
Jay W. Dawson, Livermore, CA (US);
Gabriel M. Guss, Manteca, CA (US);
Paul H. Pax, Livermore, CA (US);
Alexander M. Rubenchik, Livermore, CA (US);
Manyilibo J. Matthews, Livermore, CA (US);
LAWRENCE LIVERMORE NATIONAL SECURITY, LLC, Livermore, CA (US);
Abstract
A high-power laser beam with an arbitrary intensity profile is produced. Such beam has a variety of uses including for laser materials processing such as powder bed fusion additive manufacturing. Several challenges in additive manufacturing are mitigated with the present non-uniform intensity laser profiles. Nonuniform shapes include a set of intensity pixels in a line that could print a wide stripe area instead of just a single line. One example uses the multimode interference pattern from the output of a ribbon fiber which is imaged onto a work piece. The interference pattern is controlled to allow turning on or off of 'pixels' along a line which can be used to shape the beam and form the additively manufactured part.