Light and light sensor

  • US 9,635,727 B2
  • Filed: 06/16/2016
  • Issued: 04/25/2017
  • Est. Priority Date: 10/24/2008
  • Status: Active Grant
First Claim
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1. A system, comprising:

  • an LED-based lighting device comprising;

    a housing;

    one or more light emitting diodes (LEDs) disposed within the housing; and

    a connector coupled to an end of the housing, wherein the connector is configured to engage with a light socket;

    a sensor configured to;

    determine a brightness level of light during operation of the LED-based lighting device, andoutput a signal corresponding to the determined brightness level; and

    a controller configured to estimate an efficiency of the one or more LEDs based on the signal.

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