Patent ID: 7354164

Claim:
A light filter with a back surface for receiving incident light and a front viewing surface, comprising: a layer of substantially opaque material including front and back surfaces within the filter; a plurality of light transmissive beads disposed in a single-layer array within the layer of substantially opaque material with first portions of the beads penetrating through the front surface of the layer of opaque material to form light transmissive apertures and remaining portions of the beads protruding through the back surface of and not disposed within the layer of substantially opaque material to receive incident light; a light-dispersing material layer having asymmetrical dispersion characteristics along orthogonal axes, the light-dispersing material layer being interposed between the incident light and the remaining portion of the beads protruding through the back surface of and not disposed within the layer of substantially opaque material to disperse light incident on the light-dispersing material layer to enhance light transmission along one of the orthogonal axes relative to light transmission along another of the orthogonal axes, the light-dispersing material layer including within a material for scattering incident light; and a light polarizing layer interposed between the light transmissive apertures and the front viewing surface for improved rejection of ambient light.