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. 15, 2021
Filed:
Dec. 14, 2017
3d Systems, Inc., Rock Hill, SC (US);
Guthrie Cooper, Mill Spring, NC (US);
3D Systems, Inc., Rock Hill, SC (US);
Abstract
A method and system for calibrating a three dimensional printing system includes a specialized sensor. The three dimensional printing system forms a three dimensional article of manufacture through a layer-by-layer process. Layers are formed by the operation of a light engine selectively curing photocure resin onto a face of the three dimensional article of manufacture. The sensor includes a photodetector overlaid by an optical element. The optical element simulates a 'dense portion' of an optical path between the light engine and the face of the three dimensional article of manufacture being formed. The 'dense portion' of the optical path includes a layer of photocure resin that is disposed between the light engine and the face of the three dimensional article of manufacture.