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Object detector and sensor

  • US 9,817,123 B2
  • Filed: 12/07/2016
  • Issued: 11/14/2017
  • Est. Priority Date: 12/06/2013
  • Status: Active Grant
First Claim
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1. An object detector, comprising:

  • a projector including a light source having a two-dimensionally arranged plurality of light emitter groups, each of the light emitter groups having a plurality of light emitters;

    a light receiver which receives light emitted from the projector, and reflected by an object;

    a light source driver which lights on and lights off each of the light emitter groups of the light source; and

    a processor which independently and sequentially lights on and lights off the plurality of light emitter groups using the light source driver, and obtains distance information to the object based on lighting-on timing of the light emitter group and light-receiving timing of the light receiver when the light receiver receives light reflected by the object, whereinthe processor simultaneously lights on and lights off at least two light emitter groups among the plurality of light emitter groups until the light receiver receives the light reflected by the object.

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