2-D Planar VCSEL Source for 3-D Imaging
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United States of America Patent
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Issued Date -
Sep 17, 2015
app pub date -
Jun 12, 2014
filing date -
Jul 12, 2013
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Abandoned
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Abstract
An apparatus and a method are provided for 3-D proximity sensing, imaging and scanning using a 2-D planar VCSEL array source using reflected radiation from an object being detected. An important aspect of the apparatus is a compact high power optical source and in particular, an optical source comprising a plurality of VCSELs to illuminate the object. VCSELs in the optical source are configured in different 2-D planar arrangements, such that the optical source may be used in many different modes to adapt to different sensing, imaging and scanning requirement suited for different environments including one where shape, size and illumination mode require to be altered dynamically. When used in different modes of operation the apparatus provides a comprehensive set of measured distance and intensity profile of the object to compute a 3-D image.
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