Generation of a desired wavefront with a plurality of phase contrast filters
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United States of America Patent
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Feb 17, 2009
Grant Date -
Oct 12, 2006
app pub date -
Jun 25, 2004
filing date -
Jun 26, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention relates to a method and a system for synthesizing an intensity pattern based on generalized phase contrast imaging. The phase filter contains a plurality of phase shifting regions that is matched to the layout of a light source array, each of the regions being positioned at the zero-order diffraction region of a respective element of the array. Further, the shape of each phase shifting region may match the shape of the zero-order diffraction region of the respective element. Thus, the energy of the electromagnetic fields of the system may be distributed over a large area compared to the area of a zero-order diffraction region of a single plane electromagnetic field of a known phase contrast imaging system.
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