US 11,964,429 B2
Light recycling for additive manufacturing optimization
James A. DeMuth, Woburn, MA (US); Erik Toomre, Los Altos, CA (US); Francis L. Leard, Sudbury, MA (US); Kourosh Kamshad, Hudson, NH (US); Heiner Fees, Bietigheim-Bissingen (DE); and Eugene Berdichevsky, Oakland, CA (US)
Assigned to Seurat Technologies, Inc., Wilmington, MA (US)
Filed by Seurat Technologies, Inc., Mountain View, CA (US)
Filed on Sep. 23, 2020, as Appl. No. 17/030,206.
Application 17/030,206 is a division of application No. 15/337,201, filed on Oct. 28, 2016, granted, now 10,960,465.
Claims priority of provisional application 62/248,776, filed on Oct. 30, 2015.
Claims priority of provisional application 62/248,765, filed on Oct. 30, 2015.
Claims priority of provisional application 62/248,829, filed on Oct. 30, 2015.
Claims priority of provisional application 62/248,968, filed on Oct. 30, 2015.
Claims priority of provisional application 62/248,758, filed on Oct. 30, 2015.
Claims priority of provisional application 62/248,821, filed on Oct. 30, 2015.
Claims priority of provisional application 62/248,795, filed on Oct. 30, 2015.
Claims priority of provisional application 62/248,791, filed on Oct. 30, 2015.
Claims priority of provisional application 62/248,980, filed on Oct. 30, 2015.
Claims priority of provisional application 62/248,966, filed on Oct. 30, 2015.
Claims priority of provisional application 62/248,833, filed on Oct. 30, 2015.
Claims priority of provisional application 62/248,780, filed on Oct. 30, 2015.
Claims priority of provisional application 62/248,839, filed on Oct. 30, 2015.
Claims priority of provisional application 62/248,969, filed on Oct. 30, 2015.
Claims priority of provisional application 62/248,783, filed on Oct. 30, 2015.
Claims priority of provisional application 62/248,835, filed on Oct. 30, 2015.
Claims priority of provisional application 62/248,989, filed on Oct. 30, 2015.
Claims priority of provisional application 62/248,847, filed on Oct. 30, 2015.
Claims priority of provisional application 62/248,787, filed on Oct. 30, 2015.
Claims priority of provisional application 62/248,848, filed on Oct. 30, 2015.
Claims priority of provisional application 62/248,770, filed on Oct. 30, 2015.
Claims priority of provisional application 62/248,799, filed on Oct. 30, 2015.
Claims priority of provisional application 62/248,841, filed on Oct. 30, 2015.
Prior Publication US 2021/0001404 A1, Jan. 7, 2021
Int. Cl. G02F 1/01 (2006.01); B22F 3/24 (2006.01); B22F 10/00 (2021.01); B22F 10/28 (2021.01); B22F 10/34 (2021.01); B22F 10/36 (2021.01); B22F 10/70 (2021.01); B22F 12/00 (2021.01); B22F 12/30 (2021.01); B22F 12/33 (2021.01); B22F 12/44 (2021.01); B22F 12/70 (2021.01); B22F 12/88 (2021.01); B22F 12/90 (2021.01); B23K 15/00 (2006.01); B23K 15/06 (2006.01); B23K 26/03 (2006.01); B23K 26/08 (2014.01); B23K 26/12 (2014.01); B23K 26/142 (2014.01); B23K 26/144 (2014.01); B23K 26/16 (2006.01); B23K 26/36 (2014.01); B23K 26/70 (2014.01); B23K 37/04 (2006.01); B25J 11/00 (2006.01); B29C 64/153 (2017.01); B29C 64/264 (2017.01); B29C 64/268 (2017.01); B29C 64/386 (2017.01); B33Y 10/00 (2015.01); B33Y 40/00 (2020.01); B33Y 50/02 (2015.01); B33Y 70/00 (2020.01); B33Y 80/00 (2015.01); B33Y 99/00 (2015.01); G02B 7/14 (2021.01); G02B 7/16 (2021.01); G02B 7/182 (2021.01); G02B 15/04 (2006.01); G02B 15/10 (2006.01); G02B 19/00 (2006.01); G02B 26/08 (2006.01); G02B 27/10 (2006.01); G02F 1/1333 (2006.01); G02F 1/135 (2006.01); G05B 17/02 (2006.01); H01S 5/00 (2006.01); H01S 5/40 (2006.01); B22F 10/10 (2021.01); B22F 10/32 (2021.01); B22F 10/47 (2021.01); B22F 10/50 (2021.01); B22F 10/64 (2021.01); B22F 10/73 (2021.01); B22F 12/17 (2021.01); B22F 12/20 (2021.01); B22F 12/41 (2021.01); B22F 12/45 (2021.01); B22F 12/53 (2021.01); B23K 26/00 (2014.01); B23K 26/082 (2014.01); B23K 26/342 (2014.01); B23K 101/00 (2006.01); B23K 101/02 (2006.01); B23K 101/24 (2006.01); B23K 103/00 (2006.01); B28B 1/00 (2006.01); B29K 105/00 (2006.01); B33Y 30/00 (2015.01); G02B 27/00 (2006.01); G02B 27/09 (2006.01); G02B 27/14 (2006.01); G02B 27/28 (2006.01); G07C 3/14 (2006.01)
CPC B29C 64/264 (2017.08) [B22F 3/24 (2013.01); B22F 10/00 (2021.01); B22F 10/28 (2021.01); B22F 10/34 (2021.01); B22F 10/36 (2021.01); B22F 10/70 (2021.01); B22F 12/00 (2021.01); B22F 12/226 (2021.01); B22F 12/30 (2021.01); B22F 12/33 (2021.01); B22F 12/38 (2021.01); B22F 12/44 (2021.01); B22F 12/70 (2021.01); B22F 12/88 (2021.01); B22F 12/90 (2021.01); B23K 15/0006 (2013.01); B23K 15/0013 (2013.01); B23K 15/002 (2013.01); B23K 15/0026 (2013.01); B23K 15/0093 (2013.01); B23K 15/06 (2013.01); B23K 26/03 (2013.01); B23K 26/032 (2013.01); B23K 26/083 (2013.01); B23K 26/0846 (2013.01); B23K 26/1224 (2015.10); B23K 26/123 (2013.01); B23K 26/127 (2013.01); B23K 26/142 (2015.10); B23K 26/144 (2015.10); B23K 26/16 (2013.01); B23K 26/36 (2013.01); B23K 26/702 (2015.10); B23K 26/703 (2015.10); B23K 26/704 (2015.10); B23K 37/0426 (2013.01); B25J 11/00 (2013.01); B29C 64/153 (2017.08); B29C 64/268 (2017.08); B29C 64/386 (2017.08); B33Y 10/00 (2014.12); B33Y 40/00 (2014.12); B33Y 50/02 (2014.12); B33Y 70/00 (2014.12); B33Y 80/00 (2014.12); B33Y 99/00 (2014.12); G02B 7/14 (2013.01); G02B 7/16 (2013.01); G02B 7/1827 (2013.01); G02B 15/04 (2013.01); G02B 15/10 (2013.01); G02B 19/0028 (2013.01); G02B 19/0047 (2013.01); G02B 26/0816 (2013.01); G02B 27/108 (2013.01); G02F 1/0136 (2013.01); G02F 1/133362 (2013.01); G02F 1/135 (2013.01); G05B 17/02 (2013.01); H01S 5/005 (2013.01); H01S 5/4012 (2013.01); B22F 2003/247 (2013.01); B22F 2003/248 (2013.01); B22F 10/10 (2021.01); B22F 10/32 (2021.01); B22F 10/47 (2021.01); B22F 10/50 (2021.01); B22F 10/64 (2021.01); B22F 10/73 (2021.01); B22F 12/17 (2021.01); B22F 12/20 (2021.01); B22F 12/222 (2021.01); B22F 12/41 (2021.01); B22F 12/45 (2021.01); B22F 12/53 (2021.01); B22F 2998/10 (2013.01); B22F 2999/00 (2013.01); B23K 15/0086 (2013.01); B23K 26/0006 (2013.01); B23K 26/082 (2015.10); B23K 26/342 (2015.10); B23K 37/0408 (2013.01); B23K 2101/001 (2018.08); B23K 2101/008 (2018.08); B23K 2101/02 (2018.08); B23K 2101/24 (2018.08); B23K 2103/00 (2018.08); B23K 2103/42 (2018.08); B23K 2103/50 (2018.08); B28B 1/001 (2013.01); B29K 2105/251 (2013.01); B33Y 30/00 (2014.12); G02B 27/0068 (2013.01); G02B 27/0905 (2013.01); G02B 27/141 (2013.01); G02B 27/283 (2013.01); G02B 27/286 (2013.01); G05B 2219/49023 (2013.01); G07C 3/146 (2013.01); Y02P 10/25 (2015.11); Y02P 80/40 (2015.11)] 4 Claims
OG exemplary drawing
 
1. A method, comprising the steps of:
multiplexing, by a first optical assembly, multiple beams of light including at least one or more beams of light from one or more light sources;
reshaping and blending, by an optical device, the multiple beams of light to provide a first beam of light;
applying, by a spatial polarization valve, a spatial polarization pattern on the first beam of light to provide a second beam of light;
splitting, by a polarizer, polarization states of the second beam of light to reflect a third beam of light that is a portion of the second beam of light;
reshaping, by a second optical assembly, the third beam of light into a fourth beam of light that is to be recycled into one of the multiple beams of light that are multiplexed; and
introducing, by the second optical assembly, the fourth beam of light to the first optical assembly as one of the multiple beams of light to result in a fifth beam of light that is emitted through and not reflected by the polarizer to fuse powder material; and
directing the fifth beam of light to a powder bed that includes the powder material to be fused.