APPARATUS AND METHOD FOR FORMING THREE-DIMENSIONAL OBJECTS
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United States of America Patent
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Oct 1, 2015
app pub date -
Mar 31, 2015
filing date -
Mar 31, 2014
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Abstract
An apparatus for forming a three-dimensional (3D) object includes a first light source unit comprising at least one first light source arranged on a first plane; a second light source unit comprising at least one second light source arranged on a second plane, where the second plane is non-parallel to the first plane; a controller operatively connected to the first light source unit and the second light source unit and configured to control the first light source and the second light source to emit energy beams at predetermined power levels. The energy beams from the first light source and the second light source meet at a place to provide a combined energy sufficient to change a material property of a material at the place.
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