Patent · US Active

Dynamic optical assembly for laser-based additive manufacturing

US11446774B2 · kind B2 · utility

0Cited by

63References

21Claims

0Family size

Assignee

Seurat Technologies, Inc. · US

Inventors

James A. DeMuth · Woburn, US
Erik Toomre · Los Altos, US
Francis L. Leard · Sudbury, US
Kourosh Kamshad · Hudson, US
Heiner Fees · Bietigheim-Bissingen, DE
Eugene Berdichevsky · Oakland, US

Key dates

Filing date	Oct 28, 2016
Grant date	Sep 20, 2022
Priority date	—
Expiry date	Jul 6, 2037

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P80/40
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A method and an apparatus of a powder bed fusion additive manufacturing system that enables a quick change in the optical beam delivery size and intensity across locations of a print surface for different powdered materials while ensuring high availability of the system. A dynamic optical assembly containing a set of lens assemblies of different magnification ratios and a mechanical assembly may change the magnification ratios as needed. The dynamic optical assembly may include a transitional and rotational position control of the optics to minimize variations of the optical beam sizes across the print surface.

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