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Lighting device

  • US 9,146,012 B2
  • Filed: 02/15/2013
  • Issued: 09/29/2015
  • Est. Priority Date: 06/29/2007
  • Status: Active Grant
First Claim
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1. A lighting device, comprising:

  • a substantially cylindrical tube extending between an interior of a building and an exterior of the building, the tube having a first opening at a first end of the tube configured to receive light from the exterior and a second opening at a second end of the tube configured to emit light into the interior;

    a reflective surface disposed on an interior surface of the tube;

    a supplemental light source coupled to the tube and configured to illuminate the interior of the building; and

    a plurality of projections disposed proximate the second end and extending inwardly, the projections configured to at least partially support a diffuser.

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