US Patent 8419986 Method of producing a composite light guiding device
Patent 8419986 was granted and assigned to Design LED Products on April, 2013 by the United States Patent and Trademark Office.
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A light guiding device and in particular to a light guiding device that can be used for illumination, backlighting, signage or display purposes is described. The light guiding device comprises a transparent base substrate, upon a first surface of which are mounted light sources, and a guide substrate arranged so as to encapsulate the light sources upon the first surface. In this way the guide substrate provides a means for guiding light produced by the one or more light sources over the first surface. The incorporation of scattering structures along with appropriate choice of the refractive indices of the various layers provides a highly flexible light guiding device that is typically less than 1 mm thick. The described light guiding device provides particular application as a seven segment display.
US Patent 08419986 Method of producing a composite light guiding device US Patent 8419986 Method of producing a composite light guiding device
US Patent 08419986 Method of producing a composite light guiding device
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