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Lighting device with operation responsive to geospatial position

  • US 9,681,510 B2
  • Filed: 03/26/2015
  • Issued: 06/13/2017
  • Est. Priority Date: 03/26/2015
  • Status: Active Grant
First Claim
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1. A lighting device comprising:

  • at least one electrically activated emitter;

    at least one element selected from;

    (a) a user input element, (b) a signal receiver, and (c) at least one sensor, wherein the at least one element is arranged to receive or provide at least one signal indicative of or permitting derivation of geospatial position; and

    a driver module arranged to adjust operation of the at least one electrically activated emitter differently on different days of a year based on the at least one signal and a predefined or user-defined schedule stored in a memory of the lighting device, wherein said adjustment alters spectral content of emissions of the lighting device, and wherein said predefined or user-defined schedule is configured to alter the spectral content of the emissions of the lighting device to compensate for yearly variations in spectral content of natural ambient light.

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