Light emitting panel assemblies
DCFirst Claim
1. A light emitting panel assembly comprising a light emitting panel member having at least one input edge, a plurality of light sources optically coupled to different portions of the width of the input edge, and a pattern of individual light extracting deformities associated with respective light sources, wherein the deformities are projections or depressions on or in at least one surface of the panel member for producing a desired light output from the panel member, wherein each of the deformities has a length and width substantially smaller than the length and width of the panel surface, wherein the deformities that are in close proximity to the input edge increase in density, size, depth and/or height as the distance of the deformities from the respective light sources increases across the width of the panel member, and wherein the density, size, depth and/or height of the deformities in close proximity to the input edge is greatest at approximate midpoints between adjacent pairs of the light sources.
6 Assignments
Litigations
2 Petitions
Accused Products
Abstract
Light emitting panel assemblies include a light emitting panel member having at least one light source optically coupled to a portion of an input edge of the panel member. A plurality of individual light extracting deformities on or in at least one panel surface of the panel member are of well defined shape and have a length and width substantially smaller than the length and width of the panel surface. At least some of the deformities have at least one surface that is angled at different orientations relative to the input edge depending on the location of the deformities on the panel surface to face a portion of the input edge to which a light source is optically coupled.
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Citations
14 Claims
- 1. A light emitting panel assembly comprising a light emitting panel member having at least one input edge, a plurality of light sources optically coupled to different portions of the width of the input edge, and a pattern of individual light extracting deformities associated with respective light sources, wherein the deformities are projections or depressions on or in at least one surface of the panel member for producing a desired light output from the panel member, wherein each of the deformities has a length and width substantially smaller than the length and width of the panel surface, wherein the deformities that are in close proximity to the input edge increase in density, size, depth and/or height as the distance of the deformities from the respective light sources increases across the width of the panel member, and wherein the density, size, depth and/or height of the deformities in close proximity to the input edge is greatest at approximate midpoints between adjacent pairs of the light sources.
- 6. A light emitting panel assembly comprising a light emitting panel member having at least one input edge, a plurality of light sources optically coupled to different portions of the width of the input edge, and a pattern of individual light extracting deformities associated with respective light sources, wherein the deformities are projections or depressions on or in at least one surface of the panel member for producing a desired light output from the panel member, wherein each of the deformities has a length and width substantially smaller than the length and width of the panel surface, wherein the deformities that are in close proximity to the input edge increase in density, size, depth and/or height as the distance of the deformities from the respective light sources increases across the width of the panel member, wherein at least some of the deformities have two or more intersecting surfaces that intersect the panel surface and intersect each other, and wherein at least some of the deformities only have two surfaces.
Specification