Photon detector with a paralyzable photon-sensitive element, in particular SPAD, and distance measuring device comprising said type of photon detector
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United States of America Patent
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Dec 1, 2015
Grant Date -
Oct 18, 2012
app pub date -
Jul 15, 2010
filing date -
Sep 11, 2009
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Abstract
A photon detector is disclosed that includes, in addition to an immobilizable photon-sensitive element, a photon transmission element. The photon detector is configured such that it can vary photon intensities impacting upon the photon-sensitive element and transmitted by the photon transmission element, for example, by modifying an absorption property or a defocusing property of the photon transmission element. Also, the immobile photon-sensitive element, which can be, for example a SPAD (Single Photon Avalanche Diode), always operates close to the optimal operating range and below an immobilization range. A distancing device that includes this type of photo detector is also disclosed.
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