Modulated laser range finder and method

Modulated laser range finder and method

  • CN 103,792,540 A
  • Filed: 10/31/2013
  • Published: 05/14/2014
  • Est. Priority Date: 10/31/2012
  • Status: Active Application
First Claim
Patent Images

1. an airborne laser range finder, it comprises:

  • Laser instrument, it is configured laser beam is projected on target object, thereby causes that target beam reflects from described target object, and wherein said laser beam has frequency, and wherein modulates described frequency with known modulating speed;

    The first beam splitter, it is arranged to go out reference beam from described laser beam splitting;

    The second beam splitter, it is arranged to and receives described target beam and described reference beam, and wherein said target beam and described reference beam are by coherent combination, and wherein said coherent combination light beam is established difference frequency;

    AndDetector, it is configured measures described difference frequency.

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