Patent · US Active

System for the lithography-based additive manufacturing of three-dimensional (3D) structures

US11440263B2 · kind B2 · utility

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15Claims
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Key dates

Filing dateDec 23, 2019
Grant dateSep 13, 2022
Priority date
Expiry dateMay 1, 2040

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB33Y70/00
  • WIPO fieldOther special machines
  • WIPO sectorMechanical engineering

Abstract

A device for the lithography-based additive manufacturing of three-dimensional structures may comprise a building platform defining a building plane, a light engine designed for the dynamic patterning of light in an exposure field of said light engine, a material transport unit comprising a first drive mechanism for transporting a material layer across the exposure field, a second drive mechanism for causing relative movement of the light engine and the building platform along a displacement path extending parallel to the building plane, a linear encoder for sensing a position and/or a velocity of the light engine relative to the building platform, and/or one or more control units configured to adjust the feeding rate of a pattern data feeder based on the position or the velocity sensed by the linear encoder.

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