Variable thickness light diffuser

Abstract

An apparatus for diffusing light. In representative embodiments, an apparatus is disclosed that comprises a semi-transparent material piece having a particulate distributed within the piece, wherein the particulate is capable of diffusing light passing through the piece. In a preselected direction, the thickness of the piece varies with position. When light enters the piece in the preselected direction, the piece diffuses the light more in regions of greater thickness than in regions of lesser thickness. In other representative embodiments, another apparatus is disclosed that comprises a light source, a reflector, and a semi-transparent material piece. The reflector is capable of redirecting light from the light source onto a surface of the piece. A particulate is distributed within the piece, wherein the particulate is capable of diffusing light passing through the piece. In a preselected direction, the thickness of the piece varies with position. When light enters the piece in the preselected direction, the piece diffuses the light more in regions of greater thickness than in regions of lesser thickness.

Dependencies are inferred from the claim text.