Patent ID: 9523491
Filing Date: 2016-12-20
CPC Classification: F21S,F21V,F21W,F21Y

Claim Text:
1. A luminaire housing made of thermally conductive material and comprising: a longitudinally extending core having a substantially flat top wall, a substantially flat bottom wall and two opposite side walls connecting the top wall to the bottom wall, the core having a mean external width and a medial longitudinal vertical plane, and at least five external, vertically spaced, substantially parallel cooling fins carried by each side wall, said cooling fins extending longitudinally and projecting laterally outwardly in a downward slope, each cooling fin terminating laterally in a distal edge and having a lateral cantilevered length and a reach defined by the lateral distance of its distal edge from said medial longitudinal vertical plane, wherein the reaches of a group of at least four consecutive cooling fins of each side wall increase progressively from the top cooling fin of the group to the bottom cooling fin of the group and the lateral cantilevered length of the majority of the cooling fins of each side wall is at least about 35% of the mean external width of the core.