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. 24, 2022
Filed:
Sep. 19, 2018
Additive Industries B.v., Eindhoven, NL;
Erwin Wijn, Eindhoven, NL;
Rob Peter Albert Van Haendel, Eindhoven, NL;
Mark Herman Else Vaes, Eindhoven, NL;
ADDITIVE INDUSTRIES B.V., Eindhoven, NL;
Abstract
The invention relates to a method for calibrating an apparatus for producing an object by means of additive manufacturing. The apparatus comprises a process chamber, as well as a support for positioning the object in relation to a surface level of a bath of material to be solidified. A solidifying device is arranged for emitting a beam of radiation on the surface level for solidifying a selective part of said material. The solidifying device comprises a focus member for adjusting a focus setting. The method according to the invention comprises the steps of controlling the solidifying device for making test patterns at different focus settings. A calibration system with a sensor unit is used for determining characteristics of test patterns, and a calibrated focus setting is determined based on the characteristics.