INFRARED SENSOR MODULE
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United States of America Patent
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Issued Date -
Sep 10, 2015
app pub date -
Mar 5, 2015
filing date -
Mar 7, 2014
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Abstract
A sensor assembly for sensing infrared radiation and its manufacture are described. The sensor comprises at least one sensing element provided on or embedded in a substrate extending substantially in a substrate plane, a cap for covering the at least one sensing element, the cap comprising an upper wall for receiving radiation incident on the sensor assembly and a plurality of cavity walls arranged to define a cavity between the cap and the substrate for hosting the sensing element. At least one of said cavity walls subtends an angle with respect to the receiving upper wall so as to induce total internal reflection on said cavity walls for radiation incident thereon.
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