Method for forming a three-dimensional article by fusion of a powdered medium in a powder bed

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United States of America Patent

PATENT NO 11724457
APP PUB NO 20210276272A1
SERIAL NO

17303377

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Abstract

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Methods and apparatus for forming a three-dimensional article in which a powdered medium is distributed in a powder bed, heated to a temperature below its melting point, and fused by means of a laser beam projected in the form of an image of a cross section of the three-dimensional article. The image of the cross-sectional layer is created by spatial light modulation of the laser beam using an LCoS display. During the fabrication process, characteristics of the image of the cross-sectional layer are controlled through monitoring of the projection of a holographic representation of the image using one or more imaging devices.

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Patent Owner(s)

  • NEXA3D INC.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cieszyński, Tomasz P Sosnowiec, PL 1 0
Graczyk, Jakub Cracow, PL 3 8
Reichental, Avi N Carpinteria, US 17 64

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