Method and apparatus for photo-curing with self-lubricating substratum for the formation of three-dimensional objects
US10357919B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 3, 2016 |
| Grant date | Jul 23, 2019 |
| Priority date | — |
| Expiry date | Oct 3, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133607
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Three-dimensional objects are formed by exposing a photo-curing liquid polymer to a radiation. The three-dimensional objects form by growth, due to the progressive curing of the photo-curing liquid polymer, in a space between a sheet transparent to the radiation and a supporting plate, that is, a portion already formed of the objects. During the growth process, the supporting plate progressively moves away from the transparent sheet. On the side of said transparent sheet facing towards the photo-curing liquid polymer, a membrane is arranged. The membrane is transparent to the radiation, and is covered by a layer of liquid lubricant that is released gradually by the membrane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.