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Active multi-spectral sensor

  • US 9,903,757 B1
  • Filed: 09/23/2016
  • Issued: 02/27/2018
  • Est. Priority Date: 09/25/2015
  • Status: Active Grant
First Claim
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1. A sensor comprising:

  • a plurality of laser transmitter units, wherein each of the plurality of laser transmitter units is configured to transmit a light beam having a plurality of wavelengths;

    a photodetector; and

    an optical system coupled to the plurality of laser transmitter units and the photodetector;

    wherein the optical system directs the light beam from each of the laser transmitter units onto a same illuminated spot on a probed surface; and

    wherein the optical system collects light from the same illuminated spot and directs the light to the photodetector.

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