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Systems and methods for optically coupling optoelectronic components of a hazard detection system to determine a smoke condition of an environment

  • US 9,903,814 B2
  • Filed: 12/31/2015
  • Issued: 02/27/2018
  • Est. Priority Date: 12/31/2015
  • Status: Active Grant
First Claim
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1. A hazard detection system comprising:

  • a chamber body defining a chamber space;

    a light emitting diode operative to emit light with an emitted magnitude;

    a first light detecting diode;

    an optical coupling structure operative to;

    enable a first portion of the emitted light with a detected magnitude to be detected by the first light detecting diode;

    enable a second portion of the emitted light to be emitted into the chamber space; and

    maintain a constant ratio between the value of the emitted magnitude and the value of the detected magnitude despite variation in the value of the emitted magnitude;

    a second light detecting diode operative to detect the second portion of the emitted light; and

    a processing subsystem operative to;

    determine the current value of the detected magnitude based on the current value of a power characteristic of the first light detecting diode;

    compare the determined current value of the detected magnitude with a particular value;

    dictate the value of a power characteristic of the light emitting diode based on the comparison; and

    determine a current particular smoke condition within the chamber space based on the current amount of the second portion of the emitted light detected by the second light detecting diode.

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