The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 26, 2014
Filed:
Jan. 12, 2011
Hendrik John, Hunxe, DE;
Volker Schillen, Dusseldorf, DE;
Ali El-siblani, Dearborn Heights, MI (US);
Hendrik John, Hunxe, DE;
Volker Schillen, Dusseldorf, DE;
Ali El-Siblani, Dearborn Heights, MI (US);
Envisiontec GmbH, Gladbeck, DE;
Abstract
The invention describes device and method for producing a three-dimensional object by solidifying a solidifiable material under an action of electromagnetic radiation by means of energy input via an imaging unit comprising a predetermined number of discrete imaging elements (pixels). The energy input related to a specific cross-sectional area of the three-dimensional object is controlled by exposure by means of multiple successive raster masks (bitmaps; e.g. bitmapand bitmapand possibly additional ones). The imaging unit is suitably controllable such that at least two masks can be generated, including a first overall mask covering the cross-sectional area (bitmap; with pixel-specific area elements exposing in white light) and a partial mask (bitmap; in which only a fraction of the area elements are exposed pixel-specifically with white light) within the overall mask. A voxel matrix may be formed. A hardness depth per voxel (volume pixel) can be specifically and precisely influenced in the solidifyable material.