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:
May. 18, 2021
Filed:
Jul. 11, 2018
3d Systems, Inc., Rock Hill, SC (US);
Sam Coeck, Vertrijk, BE;
3D Systems, Inc., Rock Hill, SC (US);
Abstract
A three dimensional printing system includes a laser system, a beam splitter, a pinhole, a sensor, and a controller. The laser system emits a light beam of varying diameter carrying at least 100 watts of optical power along an optical path. The laser has an imaging plane along the optical path which can be coincident or close to a focal plane at which the beam has a minimum diameter. The beam splitter is positioned along the optical path to receive the beam and to transmit most of the optical power and to reflect remaining optical power. The pinhole is positioned along the optical path at the imaging plane to receive the reflected beam having a minimal diameter. The controller is configured to analyze a signal from the sensor to determine intensity and distribution parameters for the light beam.