Patent ID: 6712481
Filing Date: 2004-03-30
Classification: A61B,A61M,A61N,F21V,G02B,H01H,Y10S

Abstract:
A light emitting panel assembly comprising a light emitting panel member having at least one input edge for receiving light from at least one light source, and a pattern of individual light extracting deformities on or in at least one panel surface of said panel member for producing a desired light output from said panel member, each of said deformities having a length and width substantially smaller than the length and width of said panel surface and also having a well defined shape, at least some of said deformities having at least one sloping surface for reflecting or refracting light rays impinging on said sloping surface out of said panel member in a desired angular distribution, and said deformities having at least one curved surface intersecting said sloping surface and said panel surface for reflecting or refracting light rays impinging on said curved surface in different directions to spread light across said panel member to provide a mar uniform distribution of light emitted from said panel member.