US 11,724,456 B2
Optical curing system for 3D printing
Denis Indyk, Tomsk (RU); Aleksei Dubov, Moscow (RU); Slava Solonitsyn, Singapore (SG); Anna Trushina, Tomsk (RU); and Dmitry Starodubtsev, Tomsk (RU)
Assigned to Mighty Buildings, Inc., Oakland, CA (US)
Filed by Mighty Buildings, Inc., San Francisco, CA (US)
Filed on Apr. 27, 2020, as Appl. No. 16/860,021.
Claims priority of provisional application 62/901,900, filed on Sep. 18, 2019.
Prior Publication US 2021/0078254 A1, Mar. 18, 2021
Int. Cl. B29C 64/209 (2017.01); B29C 64/277 (2017.01); B29C 64/241 (2017.01); B33Y 10/00 (2015.01); B33Y 30/00 (2015.01); B29C 64/106 (2017.01); B33Y 50/02 (2015.01); B29C 64/393 (2017.01)
CPC B29C 64/277 (2017.08) [B29C 64/106 (2017.08); B29C 64/209 (2017.08); B29C 64/241 (2017.08); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12); B29C 64/393 (2017.08); B33Y 50/02 (2014.12)] 20 Claims
OG exemplary drawing
 
1. An optical curing system for a 3D printing system, the optical curing system comprising:
a mounting bracket connected to a rotary system, the rotary system configured to rotate the mounting bracket around a longitudinal axis of an extruder longitudinally disposed through a portion of the mounting bracket; and
a plurality of lighting modules coupled to the rotary system, each lighting module including multiple light emitting devices, each of the light emitting devices having a light beam reflector, wherein the plurality of lighting modules are distributed about the rotary system and are configured to rotate around the extruder in a manner to focus emitted light towards 3D-printable material as the 3D-printable material is extruded from the extruder, and wherein at least one of the multiple light emitting devices in each of the plurality of lighting modules is configured to emit light towards the 3D-printable material along a light path having a directional component that is substantially perpendicular to the longitudinal axis of the extruder.