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DISTANCE MEASURING DEVICE

  • US 20170082746A1
  • Filed: 09/13/2016
  • Published: 03/23/2017
  • Est. Priority Date: 09/21/2015
  • Status: Active Grant
First Claim
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1. A distance measuring, device which intermittently emits light to a measured object and measures a distance to the measured object based on time from the emission of the light until scattered light of the light scattered on the measured object is detected, the device comprising:

  • an optical detector to detect the scattered light; and

    a measurer having a sampler to sample a signal corresponding to an output signal of the optical detector every time when the light is emitted at a plurality of sampling time points, the plurality of sampling time points being segmented into at least first and second segments, and a storage to store a value obtained by accumulating sampling values at each sampling time point, to measure the distance based on a plurality of first accumulation values at the sampling time points in the first segment and initialize the first accumulation value every time when a first ending condition is satisfied, and to measure the distance based on a plurality of second accumulation values at the sampling time points in the second distance segment and initialize the second accumulation value every time when a second ending condition is satisfied.

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