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TUNABLE LED LAMP FOR PRODUCING BIOLOGICALLY-ADJUSTED LIGHT

  • US 20140049191A1
  • Filed: 08/16/2013
  • Published: 02/20/2014
  • Est. Priority Date: 12/05/2011
  • Status: Active Grant
First Claim
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1. A tunable light-emitting diode (LED) lamp for producing biologically-adjusted light, comprising:

  • a base;

    a housing attached to the base;

    a power circuit disposed within the housing having electrical leads attached to the base;

    a driver circuit disposed within the housing;

    a plurality of LED dies electrically coupled to and driven by the driver circuit; and

    an intermediate base adapted to be removably attachable to the base and positionable in electrical communication with the driver circuit and the power circuit;

    wherein the driver circuit is adapted to drive the plurality of LED dies to emit a phase-shift light having a first spectral power distribution, a general illuminating light having a second spectral power distribution, and a pre-sleep light having a third spectral power distribution;

    wherein the phase-shift light is configured to affect a first biological effect in an observer;

    wherein the pre-sleep light is configured to affect a second biological effect in an observer;

    wherein the intermediate base is adapted to couple with an Edison screw socket thereby positioning the intermediate base in electrical communication with the Edison screw socket; and

    wherein the intermediate base is configured to cause the driver circuit to operate the plurality of LED dies so as to emit one of the phase-shift light, the general illuminating light, and the pre-sleep light, or to emit no light.

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