Three dimensional printing system with partially immersed imaging bar defining build plane below a free surface of photocurable resin
US11654618B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 10, 2020 |
| Grant date | May 23, 2023 |
| Priority date | — |
| Expiry date | Apr 10, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB33Y30/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A three-dimensional printing system for fabricating a three-dimensional article includes a resin vessel, a motorized build plate, an imaging bar, and a movement mechanism. The resin vessel is for containing a photocurable resin, the photocurable resin having an upper resin surface. The motorized build plate is for supporting the three-dimensional article in the photocurable resin. The imaging bar includes a plurality of light emitting devices arranged along a transverse axis for emitting light generally downwardly and a transparent sheet disposed below the plurality of light emitting devices. The transparent sheet has a lower surface to contact the resin and define a build plane below the upper surface of the resin. The movement mechanism is for imparting movement of the imaging bar along a scan axis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.