skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: System and method for computed axial lithography (CAL) for 3D additive manufacturing

Abstract

A method of forming a three dimensional (3D) object is disclosed. The method may involve providing a volume of photo-curable resin contained within an optically transparent resin container, and simultaneously directing optical projections from an optical subsystem at a plurality of angles θ through the volume of photo-curable resin. The optical beams are directed about a z axis extending through the volume of photo-curable resin. Each of the projections is provided with a calculated 2D spatial intensity function which creates a 3D intensity map. The projections act over a fixed temporal exposure period, during which the net exposure dose is sufficient to cure select portions of the volume of photo-curable resin, and to leave other portions uncured, to form a desired 3D part.

Inventors:
; ; ; ; ;
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1650882
Patent Number(s):
10647061
Application Number:
15/593,947
Assignee:
Lawrence Livermore National Security, LLC (Livermore, CA); The Regents of the University of California (Oakland, 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
DOE Contract Number:  
AC52-07NA27344
Resource Type:
Patent
Resource Relation:
Patent File Date: 05/12/2017
Country of Publication:
United States
Language:
English

Citation Formats

Kelly, Brett, Panas, Robert Matthew, Shusteff, Maxim, Spadaccini, Christopher M., Taylor, Hayden, and Bhattacharya, Indrasen. System and method for computed axial lithography (CAL) for 3D additive manufacturing. United States: N. p., 2020. Web.
Kelly, Brett, Panas, Robert Matthew, Shusteff, Maxim, Spadaccini, Christopher M., Taylor, Hayden, & Bhattacharya, Indrasen. System and method for computed axial lithography (CAL) for 3D additive manufacturing. United States.
Kelly, Brett, Panas, Robert Matthew, Shusteff, Maxim, Spadaccini, Christopher M., Taylor, Hayden, and Bhattacharya, Indrasen. Tue . "System and method for computed axial lithography (CAL) for 3D additive manufacturing". United States. https://www.osti.gov/servlets/purl/1650882.
@article{osti_1650882,
title = {System and method for computed axial lithography (CAL) for 3D additive manufacturing},
author = {Kelly, Brett and Panas, Robert Matthew and Shusteff, Maxim and Spadaccini, Christopher M. and Taylor, Hayden and Bhattacharya, Indrasen},
abstractNote = {A method of forming a three dimensional (3D) object is disclosed. The method may involve providing a volume of photo-curable resin contained within an optically transparent resin container, and simultaneously directing optical projections from an optical subsystem at a plurality of angles θ through the volume of photo-curable resin. The optical beams are directed about a z axis extending through the volume of photo-curable resin. Each of the projections is provided with a calculated 2D spatial intensity function which creates a 3D intensity map. The projections act over a fixed temporal exposure period, during which the net exposure dose is sufficient to cure select portions of the volume of photo-curable resin, and to leave other portions uncured, to form a desired 3D part.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {5}
}

Patent:

Save / Share: