Method and device for producing a three-dimensional object, and computer and data carrier useful therefor
US7831328B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 22, 2008 |
| Grant date | Nov 9, 2010 |
| Priority date | — |
| Expiry date | Sep 22, 2028 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB33Y50/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a method for producing a three-dimensional object by solidification of a material solidifiable under the action of electromagnetic radiation by means of energy input via an imaging unit comprising a predetermined number of discrete imaging elements (pixels), The method comprises performing solidification with exposure using bitmap mask. The bitmap mask may be formed from a stack of bitmap data provided by an overlap analysis of a three-dimensional volume completely or partially enclosing a three-dimensional model of at least a part of the three-dimensional object to be produced. Alternatively, bitmap mask may be formed from a two-dimensional data set comprising overlap information. Solidification may be performing with exposure using bitmap mask generated “on the fly”. The invention is also directed to devices, and a computer and a data carrier useful for performing or executing the method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.