Solution to optical constraint on microtruss processing
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United States of America Patent
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Aug 11, 2015
Grant Date -
Mar 7, 2013
app pub date -
Nov 6, 2012
filing date -
Feb 5, 2010
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Abstract
A system for fabricating a radiation-cured structure is provided. The system includes a radiation-sensitive material having a first refractive index; a mask formed from a mask material having a second refractive index; and a radiation source. The mask is disposed between the radiation source and the radiation-sensitive material, and has a plurality of substantially radiation transparent apertures. The radiation source is configured to generate radiation beams for at least one of initiating, polymerizing, and crosslinking the radiation-sensitive material. The system includes at least one of a) an at least one normalizing surface disposed between the radiation source and the mask, b) a refractive fluid having a third refractive index disposed between the radiation source and the mask, and c) the refractive fluid having the third refractive index disposed between the mask and the radiation-sensitive material. A method for fabricating the radiation-cured structure is also provided.
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