Device for generating a secondary source by laser-material interaction comprising an optical device for controlling the orientation and the position of a surface in movement
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United States of America Patent
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Feb 18, 2014
Grant Date -
May 24, 2012
app pub date -
Jan 13, 2012
filing date -
Dec 4, 2008
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Abstract
A device for generating a secondary source from a primary optical source emitting a first optical beam focused onto a surface in movement, with which said first beam interacts so as to generate a secondary beam, includes an optical device for controlling the orientation and position of said surface to determine the orientation and position of the emission point of said secondary source on said surface. The device comprises: a control laser beam split into two branches, a fixed reference beam and a mobile analysis beam reflected by the surface in movement; means for making said reference and analysis beams interfere to generate interference fringes; means for imaging the interference fringes carrying information about the orientation and position of said surface; means for analyzing said interference images; and means for generating a feedback loop for controlling the orientation and position of said surface in movement based on the analysis.
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