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Lighting Assembly with LEDs and Optical Elements

  • US 20190325792A1
  • Filed: 07/01/2019
  • Published: 10/24/2019
  • Est. Priority Date: 07/30/2012
  • Status: Abandoned Application
First Claim
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1. A lighting apparatus comprising:

  • a circuit board;

    a plurality of light emitting diodes (LEDs) attached to the circuit board, the LEDs being arranged in an array of row and columns, wherein all of the LEDs attached to the circuit board are arranged in a single plane;

    a support substrate supporting the circuit board, the support structure made of a thermally conductive material and configured to dissipate heat during operation of the LEDs; and

    a plurality of optical elements configured to redirect light from the plurality of LEDs, each optical element being substantially the same as all other optical elements, wherein each LED is associated with a single optical element and each optical element is associated with a single LED, wherein each optical element comprises a convex portion at least partially overlying the associated LED, and wherein the optical elements are part of an outer surface that forms an exposed surface of the lighting apparatus;

    wherein the lighting apparatus is configured to that when all of the LEDs are operating a substantially rectangular surface is illuminated with an illumination level and a uniformity; and

    wherein failure of one or more of the LEDs will cause the illumination level of light impinging the substantially rectangular surface to decrease while the uniformity of light impinging the substantially rectangular surface remains substantially the same.

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