High productivity three-dimensional printer
US11141911B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 30, 2019 |
| Grant date | Oct 12, 2021 |
| Priority date | — |
| Expiry date | Mar 2, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB33Y30/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A system for manufacturing a three-dimensional article includes a resin vessel, a vertical movement mechanism, and a light engine. The resin vessel includes a lower opening closed by a transparent sheet. The vertical movement mechanism is for positioning a support tray which supports the three-dimensional article. The light engine is disposed below the transparent sheet and is configured to selectively harden layers of resin over a build plane above the transparent sheet. The light engine includes a light bar coupled to a lateral movement mechanism. The light bar includes an array of light emitting devices and a device for impinging upon the transparent sheet. The impingement maintains a proper operating distance H between the transparent sheet and the build plane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.