Patent ID: 8231256

Claim:
A light fixture comprising: a) at least one light emitting source; b) at least one light collimating element disposed to receive light originating from the light source with a first angular full-width at half maximum intensity profile within a first input plane and redirect the light into a second angular full-width at half maximum intensity profile within a first output plane parallel to the first input plane wherein the second angular full width is less than the first angular full width. c) an optical cavity permitting a first portion of the incident light from the light collimating element to travel through the optical cavity through multiple reflections; d) a multi-functional non-imaging component comprising an anisotropic light scattering region disposed substantially parallel to the optical axis of the light traveling through the optical cavity and disposed to receive light within a second input plane and anisotropically scatter a portion of the incident light within the second input plane; wherein light distributed from said light fixture is comprised of both a first portion of light propagating through an optical cavity without being transmitted through a multifunctional non-imaging component and a second portion of light transmitted through a multifunctional non-imaging component, both first and second portions each being greater than 3 percent of the total light distributed from said fixture.