Methods and apparatus for production of three-dimensional objects by stereolithography

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United States of America Patent

PATENT NO 4996010
SERIAL NO

07183016

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Abstract

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An improved sterolithography system for generating a three-dimensional object by creating a cross-sectional pattern of the object to be formed at a selected surface of a fluid medium capable of altering its physical state in response to appropriate synergistic stimulation by impinging radiation, particle bonbardment or chemical reaction, information defining the object being specially processed to reduce curl and distortion, and increase resolution, strength, accuracy, speed and economy of reproduction even for rather difficult object shapes, the successive adjacent laminae, representing corresponding successive adjacent cross-sections of the object, being automatically formed and integrated together to provide a step-wise laminar buildup of the desired object, whereby a three-dimensional object is formed and drawn from a substantially planar surface of the fluid medium during the forming process, and further including post processing wheren the object is subjected to additional UV curing while the object is under water.

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Patent Owner(s)

Patent OwnerAddress
3D SYSTEMS INCROCK HILL SC

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Modrek, Borzo Azusa, CA 10 815

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