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Infrared sensor device

  • US 8,969,810 B2
  • Filed: 03/12/2013
  • Issued: 03/03/2015
  • Est. Priority Date: 03/13/2012
  • Status: Active Grant
First Claim
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1. An infrared sensor device comprising:

  • a plurality of infrared sensors that is provided in a plurality of divided areas in which an infrared-receiving area is radially divided in one plane;

    a detector that detects, for each divided area amongst the divided areas, presence or absence of movement of an object in the infrared-receiving area based on signals output from the plurality of infrared sensors; and

    a determiner that determines whether the object is in a detection area in a predetermined distance range from the infrared sensor, based on an arrangement pattern of the signals output from the infrared sensors, in an alignment of the divided areas in the infrared-receiving areas,wherein the determiner determines how distant a position occupied by the object is from the infrared sensor device based on the arrangement pattern of the signals output from the infrared sensors.

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