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Fluorescent substance detection system

  • US 10,203,283 B2
  • Filed: 11/06/2017
  • Issued: 02/12/2019
  • Est. Priority Date: 07/17/2014
  • Status: Active Grant
First Claim
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1. A detection system for detecting fluorescent materials mixed in an environment in order to identify the environment, the fluorescent materials having known discrete emission spectrums for coding information to identify the environment that the fluorescent materials are mixed in, wherein the environment is highly absorbent and highly fluorescent, and wherein the environment includes one of liquid medium, gas medium and solid medium, the system comprising:

  • at least one illumination unit emitting light to the environment in order to excite the fluorescent materials to generate discrete emission spectrums used for generating coding information to identify the environment, the light emitted from the at least one illumination unit also generating fluorescence emissions in the environment along with the discrete emission spectrums from the fluorescent materials;

    at least one detection unit for detecting discrete emission spectrums emitted from the fluorescent materials in response to light emitted from the illumination unit;

    at least one signal processing unit connected to the at least one detection unit to receive signals including the discrete emission spectrums of the fluorescent materials from the at least one detection unit and process the signals to decode the coding information in order to identify the environment; and

    at least one background detector for detecting the fluorescent emissions of the environment, the at least one background detector being in connection with the at least one signal processing unit to apply dynamic background subtraction method to extract the fluorescent emissions only from the fluorescent materials and employ them to identify the environment.

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