Patent ID: 7918589
Filing Date: 2011-04-05
Classification: F21S,F21V,F21Y

Abstract:
1. A lens assembly for directing light emitted from a light source toward an area to be illuminated, the light source being elongated along a light source longitudinal axis, the lens assembly comprising: an elongate lens extending along a lens longitudinal axis parallel to said light source longitudinal axis and having a central lens portion curved in a plane transverse to the lens longitudinal axis that defines a prismatic face that is oriented toward and spaced from said light source and an opposed, substantially smooth, exterior surface; and a means for controlling the total internal reflection of a plurality of reverse rays impacting the prismatic face of the elongate lens to generate a plurality of spaced elongate stripes of reduced brightness that extend substantially parallel to the lens longitudinal axis, wherein the means for controlling the total internal reflection of the plurality of reverse rays controls high angle glare in the longitudinal direction optically.