发明公开
EP4442462A3 SYSTEM AND METHOD FOR COMPUTED AXIAL LITHOGRAPHY (CAL) FOR 3D ADDITIVE MANUFACTURING
审中-实审
基本信息:
- 专利标题： SYSTEM AND METHOD FOR COMPUTED AXIAL LITHOGRAPHY (CAL) FOR 3D ADDITIVE MANUFACTURING
- 申请号：EP24196532.6 申请日：2018-03-27
- 公开(公告)号：EP4442462A3 公开(公告)日：2024-10-23
- 发明人： KELLY, Brett , PANAS, Robert , SHUSTEFF, Maxim , SPADACCINI, Christopher , TAYLOR, Hayden , BHATTACHARYA, Indrasen
- 申请人： Lawrence Livermore National Security, LLC , The Regents of the University of California
- 申请人地址： US Livermore, CA 94550 7000 East Avenue
- 专利权人： Lawrence Livermore National Security, LLC,The Regents of the University of California
- 当前专利权人： Lawrence Livermore National Security, LLC,The Regents of the University of California
- 当前专利权人地址： US Livermore, CA 94550 7000 East Avenue
- 代理机构： Wunderlich & Heim Patentanwälte PartG mbB
- 优先权： US 1715593947 2017.05.12
- 分案原申请号： 18797947.1 2018.03.27
- 主分类号： B29C64/106
- IPC分类号： B29C64/106 ; B29C64/129 ; B29C64/135 ; B29C64/232 ; B29C64/241 ; B29C64/264 ; B29C64/393 ; B33Y30/00 ; B33Y40/00 ; B33Y50/02
摘要：
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.