Optical forming apparatus for forming three-dimensional objects
US5976448A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Nov 24, 1998 |
| Grant date | Nov 2, 1999 |
| Priority date | — |
| Expiry date | Nov 24, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C64/165
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An optical forming apparatus which can form a homogeneous three-dimensional object exhibiting desired properties over all parts, while effectively suppressing sedimentation of filler even though the filler is easily precipitated in a photo-curable resin composition. The optical forming apparatus can produce a three-dimensional object consisting of laminated layers of cured resin produced by repetition of forming cured resin layers by selectively irradiating a photo-curable liquid resin composition placed in a container (20), wherein the apparatus is characterized by having a means (60) for circulating the photo-curable liquid resin composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.