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LED lighting systems and methods

  • US 10,334,735 B2
  • Filed: 08/22/2012
  • Issued: 06/25/2019
  • Est. Priority Date: 02/14/2008
  • Status: Active Grant
First Claim
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1. An LED lighting system comprising:

  • a flexible layered circuit structure comprisinga top thermally conductive layer;

    a middle electrically insulating layer;

    a bottom thermally conductive layer;

    a plurality of light emitting diodes mounted on the top layer;

    a housing substrate;

    a mounting structure, the mounting structure comprising an engagement member that grips the flexible layered circuit structure, the mounting structure suspending the layered circuit structure above the housing substrate such that an air gap is disposed in between the bottom thermally conductive layer of the flexible layered circuit structure and the housing substrate, the air gap having a long dimension and a short dimension approximately orthogonal to the long dimension such that the long dimension is longer than the short dimension, where the air gap is open to at least one side of the long dimension of the flexible layered circuit structure, and wherein the distance between the layered circuit structure and the housing substrate is at least about 0.5 mm; and

    wherein the mounting structure exerts tension outward on the flexible layered circuit structure along the lengthwise axis of the flexible layered circuit structure away from a middle of the flexible layered circuit structure.

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