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:
Oct. 18, 2011
Filed:
Aug. 22, 2008
Guthrie Cooper, Mill Spring, NC (US);
Guthrie Cooper, Mill Spring, NC (US);
3D Systems, Inc., Rock Hill, SC (US);
Abstract
Systems and methods for calibrating a solid-imaging system () are disclosed. A calibration plate () having a non-scattering surface () with a plurality () of light-scattering fiducial marks () in a periodic array is disposed in the solid-imaging system. The actinic laser beam () is scanned over the fiducial marks, and the scattered light (S) is detected by a detector () residing above the calibration plate. A computer control system () is configured to control the steering of the light beam and to process the detector signals (SD) so as to measure actual center positions (x, y) of the fiducial marks and perform an interpolation that establishes a calibrated relationship between the angular positions of the mirrors and (x,y) locations at the build plane (). The calibrated relationship is then used to steer the laser beam in forming a three-dimensional object ().