Precision optical assembly for three dimensional printing
US11186040B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 2, 2019 |
| Grant date | Nov 30, 2021 |
| Priority date | — |
| Expiry date | Jul 28, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B21/145
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A three dimensional printer includes a projector, an adaptive support apparatus, a resin support apparatus, and a plurality of vertical struts. The projector includes a projection lens module which includes an optical housing that contains a series of lenses for projecting an image from the projector onto a build plane. The projection lens module includes a laterally extending flange having an upwardly facing flange surface. The adaptive support apparatus includes a downward facing surface in facing relation with the upward facing flange surface. The resin support apparatus is configured to contain resin and includes a transparent sheet and a downward facing surface. The transparent sheet defines a lower bound for the resin proximate to a build plane. The plurality of vertical struts couple an upward-facing surface of the adaptive support apparatus to the downward-facing surface of the resin support apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.