Patent · US Active

Focus adjustment and laser beam caustic estimation via frequency analysis of time traces and 2D raster scan data

US11878365B2 · kind B2 · utility

2Cited by

6References

20Claims

0Family size

Assignee

Concept Laser, GmbH · DE

Inventors

Christian Dicken · Weidenberg, DE
Ann-Kathrin Kleinschmidt · Bamberg, DE
Tim Klaussner · Kronach, DE
Bertram Gaerber · Neustadt bei Coburg, DE

Key dates

Filing date	Nov 20, 2019
Grant date	Jan 23, 2024
Priority date	—
Expiry date	Jan 31, 2042

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P10/25
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

Methods of determining at least one parameter of an irradiation device of an apparatus for additively manufacturing three-dimensional objects may include generating an energy beam and guiding the energy beam across a structured test surface, generating a signal by detecting radiation that is emitted from the test surface, and determining the at least one parameter based on a frequency spectrum of the signal.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.