Patent ID: 7246924
Filing Date: 2007-07-24
Classification: F21V,F21Y

Abstract:
1. A louver assembly for a luminaire, said assembly comprising: a plurality of transverse blades; and a plurality of longitudinal blades arranged with said transverse blades to form a plurality of apertures selected from the group consisting of: a first plurality of apertures wherein each aperture of a first subplurality of said apertures has a larger area than each aperture of a second subplurality of said apertures; a second plurality of apertures wherein each aperture of a first subplurality of said apertures has a greater transverse width than each aperture of a second subplurality of said apertures; a third plurality of apertures wherein each of said transverse and longitudinal blades has a top and a bottom, said louver assembly mountable in a luminaire such that said bottoms of said transverse and longitudinal blades are nearer to a lamp of said luminaire than said tops of said transverse and longitudinal blades, at least one of said longitudinal blades having a top that is nonplanar with said transverse blade tops, said at least one longitudinal blade top positioned to be nearer said luminaire lamp than said transverse blade tops; a fourth plurality of apertures wherein at least one of said longitudinal blades has a first longitudinal side having a first curvature and a second longitudinal side opposite said first side having a second curvature different than said first curvature; and a fifth plurality of apertures wherein a subplurality of said apertures forms inner apertures and another subplurality of said apertures forms outer apertures, said inner apertures transversely bounded by said outer apertures, each said aperture having a depth defined by the height of said transverse blades bounding said aperture, the aperture depth of said outer apertures being greater than the aperture depth of said inner apertures.