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Lighting device with transparent substrate, heat sink and LED array for uniform illumination regardless of number of functional LEDs

DC
  • US 10,223,946 B2
  • Filed: 05/02/2018
  • Issued: 03/05/2019
  • Est. Priority Date: 07/30/2012
  • Status: Expired due to Fees
First Claim
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1. A light assembly comprising:

  • a thermally conductive support structure configured for outdoor use, wherein the support structure protects electronic components attached to the support structure from direct contact with rainwater, wherein the support structure comprises an attachment point for securing the support structure to a weatherproof mount designed for outdoor use;

    a heat sink;

    a substantially planar circuit board attached to the support structure;

    a plurality of LEDs attached to the circuit board, wherein the LEDs are arranged in an array configuration; and

    a single transparent substrate overlying all LEDs attached to the circuit board, wherein the transparent substrate includes a plurality of convex optical elements, each convex optical element overlying an associated one or more of the LEDs;

    wherein the light assembly is configured to direct light from the LEDs towards an area in a manner that does not create hot spots or result in dead spots on the area regardless of whether all of the LEDs of the plurality of LEDs or some of the LEDs of the plurality of LEDs are functional.

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