Electro-optical range finding and speed detection system

  • US 5,642,299 A
  • Filed: 08/12/1996
  • Issued: 06/24/1997
  • Est. Priority Date: 09/01/1993
  • Status: Expired due to Term
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First Claim
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1. An electro-optical range finding system comprising:

  • (a) a pair of optical lenses, each lens in said pair of optical lenses oriented along a line of sight towards a target, said pair of optical lenses positioned a predetermined width apart along a common baseline;

    (b) at least one light sensitive device responsive to light from each lens in said pair of optical lenses for forming first and second one-dimensional images of said target on first and second linear pixel arrays;

    (c) a video correlator for comparing said first and second one-dimensional images on said first and second linear pixel arrays to find an offset pixel shift between said first and second one-dimensional images on said first and second linear pixel arrays, respectively; and

    (d) a calculator for determining a range to the target as a trigonometric function of said offset pixel shift and said predetermined width between said pair of optical lenses.

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