Method and apparatus for creating three-dimensional objects by cross-sectional lithography
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United States of America Patent
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Dec 31, 2002
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app pub date -
Jul 13, 2000
filing date -
Jul 13, 2000
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Abstract
A method and apparatus for creating a three-dimensional object by generating a cross-sectional pattern of energy of an object to be formed at a selected surface of a medium capable of altering its physical state in response to the energy projected or transmitted onto the selected layer. By impinging radiation, particle bombardment, or chemical reaction by a method controlled by a spatial light modulator, successive adjacent cross-sections of the object are rapidly formed and integrated together to provide a step-wise laminar build-up of the desired object creating a three dimensional manifestation from bitmap images of a series of cross-sections of a computer generated model.
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