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:
Jun. 30, 2015
Filed:
Oct. 16, 2013
Ivoclar Vivadent Ag, Schaan, LI;
Technische Universitat Wien, Vienna, AT;
Gottfried Rohner, Altstätten, CH;
Wolfgang Wachter, Schaan, LI;
Christoph Appert, Vaduz, LI;
Johannes Patzer, Vienna, AT;
Jürgen Stampfl, Vienna, AT;
Ivoclar Vivadent AG, Schaan, LI;
Technische Universitat Wien, Vienna, AT;
Abstract
A method and a device for processing light-polymerizable material for the assembly of a mold, utilizing a lithography-based generative manufacturing technique wherein a layer of a light-polymerizable material, the material being located in at least one trough () having a particularly light-transmissive, horizontal bottom (), is polymerized by illumination on at least one horizontal platform (), the platform having a prespecified geometry and projecting into a trough (), in an illumination field, wherein the platform () is displaced vertically to form a subsequent layer, light-polymerizable material is then added to the most recently formed layer, and repetition of the foregoing steps leads to the layered construction of the mold in the desired form, which arises from the succession of layer geometries. The invention is characterized in that the trough () can be shifted horizontally to a supply position, and the supply device () brings light-polymerizable material at least to an illumination field of the trough bottom (), before the at least one trough () is shifted to an illumination position in which the illumination field is located below the platform () and above the illumination unit (), and illumination is carried out.