Title: Multi-beam resin curing system and method for whole-volume additive manufacturing

Abstract

A multi-beam volumetric resin curing system and method for whole-volume additive manufacturing of an object includes a bath containing a photosensitive resin, a light source for producing a light beam, and a spatial light modulator which produces a phase- or intensity-modulated light beam by impressing a phase profile or intensity profile of an image onto a light beam received from the light source. The system and method also include projection optics which then produces multiple sub-image beams from the modulated light beam which are projected to intersect each other in the photosensitive resin to cure select volumetric regions of the resin in a whole-volume three-dimensional pattern representing the object.

Inventors:

Shusteff, Maxim; Spadaccini, Christopher M.; Fang, Nicholas; Panas, Robert Matthew; Henriksson, Johannes; Kelly, Brett; Browar, Allison E.

Issue Date:

Tue Dec 29 00:00:00 EST 2020

Research Org.:

Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1771756

Patent Number(s):

10875247

Application Number:

15/651,861

Assignee:

Lawrence Livermore National Security, LLC (Livermore, CA)

Patent Classifications (CPCs):

B - PERFORMING OPERATIONS B29 - WORKING OF PLASTICS B29C - SHAPING OR JOINING OF PLASTICS

B - PERFORMING OPERATIONS B33 - ADDITIVE MANUFACTURING TECHNOLOGY B33Y - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING

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B - PERFORMING OPERATIONS B29 - WORKING OF PLASTICS B29C - SHAPING OR JOINING OF PLASTICS

B29C64/124 - using layers of liquid which are selectively solidified
B29C64/264 - Arrangements for irradiation
B29C64/268 - using laser beams
B29C64/282 - of the same type, e.g. using different energy levels
B29C64/286 - Optical filters, e.g. masks

B - PERFORMING OPERATIONS B33 - ADDITIVE MANUFACTURING TECHNOLOGY B33Y - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING

B33Y10/00 - Processes of additive manufacturing
B33Y30/00 - Apparatus for additive manufacturing

G - PHYSICS G03 - PHOTOGRAPHY G03H - HOLOGRAPHIC PROCESSES OR APPARATUS

G03H1/0005 - {Adaptation of holography to specific applications
G03H1/2205 - {using downstream optical component}
G03H1/2294 - {Addressing the hologram to an active spatial light modulator}
G03H2001/0094 - {for patterning or machining using the holobject as input light distribution
G03H2001/0491 - {by monitoring the hologram formation, e.g. via a feed-back loop}
G03H2001/2207 - {Spatial filter, e.g. for suppressing higher diffraction orders}
G03H2001/221 - {Element having optical power, e.g. field lens}
G03H2210/30 - 3D object
G03H2210/33 - 3D/2D, i.e. the object is formed of stratified 2D planes, e.g. tomographic data
G03H2225/22 - Electrically addressed SLM [EA-SLM]
G03H2225/32 - Phase only
G03H2225/52 - Reflective modulator

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DOE Contract Number:  

AC52-07NA27344

Resource Type:

Patent

Resource Relation:

Patent File Date: 07/17/2017

Country of Publication:

United States

Language:

English