Characterization of collimation and beam alignment
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United States of America Patent
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Nov 2, 1999
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N/A
app pub date -
Feb 12, 1997
filing date -
Jul 7, 1995
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Abstract
An apparatus and method for characterizing light beam collimation and alignment. A liquid crystal device receiving a light beam from a collimation lens has a lenslet array generated thereon. A corresponding array of point spread functions are detected by a charge coupled device camera, from which light beam collimation and alignment are characterized. The data may be further used to adjust the collimation lens to correct misalignment.
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