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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.:

US 11801636 B1

PDFFull Text
Date of Patent:
Oct. 31, 2023

Filed:

Apr. 27, 2021

Additive manufacturing method using switchyard beam routing of patterned light

Applicant:

Seurat Technologies, Inc., Mountain View, CA (US);

Inventors:

James A. DeMuth, Woburn, MA (US);

Francis L. Leard, Sudbury, MA (US);

Erik Toomre, Los Altos, CA (US);

Assignee:

Seurat Technologies, Inc., Wilmington, MA (US);

Attorneys:

David R. Stevens

Stevens Law Group

Primary Examiner:

Leo B Tentoni

Int. Cl.
CPC ...
G02F 1/31 (2006.01); B29C 64/282 (2017.01); B29C 64/268 (2017.01); B29C 64/153 (2017.01); B33Y 50/02 (2015.01); B22F 10/30 (2021.01); B29C 64/255 (2017.01); B29C 64/264 (2017.01); B22F 10/00 (2021.01); B22F 10/28 (2021.01); B22F 12/44 (2021.01); B22F 12/49 (2021.01); B33Y 10/00 (2015.01); B33Y 30/00 (2015.01); G02B 27/10 (2006.01); B22F 10/70 (2021.01); B22F 12/41 (2021.01);
U.S. Cl.
CPC ...
B29C 64/282 (2017.08); B22F 10/00 (2021.01); B22F 10/28 (2021.01); B22F 10/30 (2021.01); B22F 12/44 (2021.01); B22F 12/49 (2021.01); B29C 64/153 (2017.08); B29C 64/255 (2017.08); B29C 64/264 (2017.08); B29C 64/268 (2017.08); B33Y 50/02 (2014.12); B22F 10/70 (2021.01); B22F 12/41 (2021.01); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12); G02B 27/10 (2013.01); G02F 1/311 (2021.01); G05B 2219/49018 (2013.01); G05B 2219/49023 (2013.01);
Abstract

A method and an apparatus for additive manufacturing pertaining to high efficiency, energy beam patterning and beam steering to effectively and efficiently utilize the source energy. In one embodiment recycling and reuse of unwanted light includes a source of multiple light patterns produced by one or more light valves, with at least one of the multiple light patterns being formed from rejected patterned light. An image relay is used to direct the multiple light patterns, and a beam routing system receives the multiple light patterns and respectively directs them toward defined areas on a powder bed.

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