Light and light sensor

  • US 10,932,339 B2
  • Filed: 02/10/2020
  • Issued: 02/23/2021
  • Est. Priority Date: 10/24/2008
  • Status: Active Grant
First Claim
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1. A system comprising:

  • a controller configured to be communicatively coupled to a sensor and a light emitting diode (LED)-based lighting device having a plurality of LEDs, wherein the controller is operable to;

    receive, from the sensor, a first sensor signal indicating a brightness level of light during operation of the LED-based lighting device at a first time period;

    determine, based on the first sensor signal, that the LED-based light device should be replaced;

    responsive to determining that the LED-based light device should be replaced, transmitting a first command signal to the LED-based light device, wherein the first command signal comprises a command to illuminate a first LED of the plurality of LEDs according to a first color and illuminate a second LED of the plurality of LEDs adjacent to the first LED according to a second color, wherein the first color is different from the second color.

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