US 11,701,827 B2
Multi-beam resin curing system and method for whole-volume additive manufacturing
Maxim Shusteff, Livermore, CA (US); Christopher M. Spadaccini, Livermore, CA (US); Nicholas Fang, Livermore, CA (US); Robert Matthew Panas, Livermore, CA (US); Johannes Henriksson, Livermore, CA (US); Brett Kelly, Livermore, CA (US); and Allison E. Browar, Livermore, CA (US)
Assigned to Lawrence Livermore National Security, LLC, Livermore, CA (US)
Filed by Lawrence Livermore National Security, LLC, Livermore, CA (US)
Filed on Dec. 23, 2020, as Appl. No. 17/133,244.
Application 17/133,244 is a division of application No. 15/651,861, filed on Jul. 17, 2017, granted, now 10,875,247.
Claims priority of provisional application 62/363,078, filed on Jul. 15, 2016.
Prior Publication US 2021/0146619 A1, May 20, 2021
Int. Cl. B29C 64/282 (2017.01); G03H 1/22 (2006.01); B29C 64/124 (2017.01); B33Y 10/00 (2015.01); G03H 1/00 (2006.01); B29C 64/286 (2017.01); B29C 64/264 (2017.01); G03H 1/04 (2006.01); B29C 64/268 (2017.01); B33Y 30/00 (2015.01)
CPC B29C 64/282 (2017.08) [B29C 64/124 (2017.08); B29C 64/264 (2017.08); B29C 64/268 (2017.08); B29C 64/286 (2017.08); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12); G03H 1/0005 (2013.01); G03H 1/2205 (2013.01); G03H 1/2294 (2013.01); G03H 2001/0094 (2013.01); G03H 2001/0491 (2013.01); G03H 2001/221 (2013.01); G03H 2001/2207 (2013.01); G03H 2210/30 (2013.01); G03H 2210/33 (2013.01); G03H 2225/22 (2013.01); G03H 2225/32 (2013.01); G03H 2225/52 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A multi-beam resin curing method for whole-volume additive manufacturing of an object, comprising:
illuminating a spatial light modulator (SLM) with a light beam from a light source;
controlling the SLM to impress an image onto the light beam so as to produce a modulated light beam; and
using projection optics to produce at least two sub-image beams from the modulated light beam with each sub-image beam having a 2D intensity profile corresponding to a section of the image, and optically transporting the at least two sub-image beams independently of each other into a bath containing a photosensitive resin so as to project the 2D intensity profile of the at least two each sub-image beam to pass through a volume of the photosensitive resin so that the projected 2D intensity profiles transversely intersect each other in the volume of the photosensitive resin bath to form a 3D pattern which simultaneously cures select volumetric regions of the volume of the photosensitive resin and thereby forms the object.