US 12,202,192 B2
Systems and methods for lithography-based additive manufacturing three-dimensional (3D) structures
Robert Gmeiner, Vienna (AT); Thomas Förster-Romswinckel, Pixendorf (AT); Philipp Neubauer, Fahrafeld (AT); Bernhard Busetti, Vienna (AT); Wolfgang Steiger, Vienna (AT); and Raphael Krobath, Breitenfurt (AT)
Assigned to CUBICURE GMBH, Vienna (AT)
Appl. No. 17/787,878
Filed by CUBICURE GMBH, Vienna (AT)
PCT Filed Dec. 21, 2020, PCT No. PCT/IB2020/062286
§ 371(c)(1), (2) Date Jun. 21, 2022,
PCT Pub. No. WO2021/130654, PCT Pub. Date Jul. 1, 2021.
Claims priority of application No. 19020724 (EP), filed on Dec. 23, 2019.
Prior Publication US 2023/0294354 A1, Sep. 21, 2023
Int. Cl. B29C 64/124 (2017.01); B29C 64/223 (2017.01); B29C 64/245 (2017.01); B29C 64/277 (2017.01); B29C 64/295 (2017.01); B29C 64/321 (2017.01); B29C 64/393 (2017.01); B33Y 10/00 (2015.01); B33Y 30/00 (2015.01); B33Y 40/10 (2020.01); B33Y 40/20 (2020.01); B33Y 50/02 (2015.01)
CPC B29C 64/124 (2017.08) [B29C 64/223 (2017.08); B29C 64/245 (2017.08); B29C 64/277 (2017.08); B29C 64/295 (2017.08); B29C 64/321 (2017.08); B29C 64/393 (2017.08); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12); B33Y 40/10 (2020.01); B33Y 40/20 (2020.01); B33Y 50/02 (2014.12)] 31 Claims
OG exemplary drawing
 
1. A device for lithography-based additive manufacturing of three-dimensional structures on a substrate, comprising:
a carrier element for carrying the substrate, the substrate having a curved surface;
a light engine designed for dynamic patterning of light in an exposure field of said light engine;
a material transport unit comprising first drive means for transporting a material layer across the exposure field while the material layer is contacting the curved surface;
second drive means for causing rotational movement of the substrate having the curved surface to establish a rolling contact of the curved surface on the material layer in a contact zone, said contact zone being arranged in the exposure field;
first control means configured to control said first and/or second drive means so that said rolling contact of the curved surface on the material layer is essentially slip-free
the light engine being adapted to emit light during said rolling contact of the curved surface on the material layer, thereby selectively curing the material layer in the contact zone.