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Systems and methods for controlling the spectral content of LED lighting devices

  • US 10,595,376 B2
  • Filed: 05/31/2017
  • Issued: 03/17/2020
  • Est. Priority Date: 09/13/2016
  • Status: Active Grant
First Claim
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1. A lighting device that provides adjustable spectral and spatial illumination to facilitate or coordinate with human circadian rhythms comprising:

  • a first illumination source comprising an LED of a first color that generates a first light output with a melanopic ratio of greater than 0.8;

    a second illumination source comprising an LED of a second color that generates a second light output with a melanopic ratio of less than 0.8;

    a light distribution unit for directing and distributing illumination generated by the first and second illumination sources wherein at least one of said first illumination source and said second illumination source is proximal to said light distribution unit and wherein the first and second illumination sources are oriented relative to one another such that their respective light outputs are directed in different directions.

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